B2 noun #25,000 最常用 10分钟阅读

bowstring

A bowstring is like a strong string on a toy bow and arrow. You pull the bowstring back, and then it helps shoot the arrow. It connects the two ends of the bow. Without the bowstring, the bow cannot shoot an arrow.

A bowstring is like a strong string on a toy bow and arrow. You pull it back to shoot an arrow. It connects the two ends of the bow. Without it, the bow can't work to send the arrow flying.

Imagine a bow, like the kind used for archery. The bowstring is the strong cord that stretches between the two ends of the bow. When you pull this string back, it creates tension, and then when released, it shoots an arrow forward. Think of it as the part that makes the bow work to launch an arrow.

Sometimes, in building and engineering, a bowstring can also mean a part of a structure that looks and acts a bit like that string, helping to hold things together or provide tension.

A bowstring is the strong cord that connects the two ends of a bow. When an archer pulls back the bowstring, it creates the tension needed to shoot an arrow.

Beyond archery, the term bowstring can also describe a structural part in engineering or architecture.

Imagine a bridge or roof support that has a curved shape, similar to a bow; the straight, taut element connecting its ends is sometimes called a bowstring.

It essentially refers to a tension-bearing component that completes a curved or arched structure.

The term bowstring, at a C1 CEFR level, refers to the taut cord integral to a bow, serving to propel an arrow. Beyond its archery application, it extends metaphorically to engineering and architectural contexts. Here, a bowstring signifies a structural element, often a chord within a truss system, characterized by its curved, tension-bearing form. This broader usage highlights its role in distributing forces and maintaining structural integrity, echoing the inherent tension and function of its namesake.

At a CEFR C2 level, understanding 'bowstring' moves beyond its literal definition to encompass its nuanced applications and metaphorical extensions. Essentially, it refers to the cord actuating a bow, central to archery for launching projectiles due to its tautness and elasticity. However, its semantic field expands considerably in specialized contexts. Within engineering and architecture, for instance, 'bowstring' aptly describes a structural element, like a chord in a truss, characterized by its curvilinear form and tensile function, echoing the physical properties of an archer's bowstring. This extended usage highlights an advanced grasp of how precise terminology from one domain can be analogously applied to describe complex components in another, underscoring a sophisticated understanding of both the physical world and linguistic abstraction.

bowstring 30秒了解

  • string of a bow
  • cord for arrow launch
  • bow-shaped structural part

§ Understanding 'Bowstring' in Context

The word 'bowstring' conjures up immediate images of archery, a sport and historical practice deeply ingrained in human culture. However, its usage extends beyond the literal string of a bow. At CEFR B2 level, understanding 'bowstring' means recognizing its primary, literal meaning, and then extending that to grasp its metaphorical and technical applications. This word is not encountered daily in casual conversation, but rather in specific contexts that relate to its core function: tension, connection, and a curved, taut form. Being able to identify these nuances is key to mastering its usage.

DEFINITION
A bowstring is the cord that connects the two ends of a bow, which is pulled back to create the tension required to launch an arrow. In a broader technical sense, it can also refer to a structural component in engineering or architecture, such as a chord in a truss, that resembles the string of a bow.

§ 'Bowstring' in the World of Work and Hobbies

In a professional setting, particularly in fields like engineering, architecture, or even historical preservation, 'bowstring' can appear in technical specifications or discussions. For instance, when describing certain types of bridge designs or roof trusses, engineers might refer to a 'bowstring truss' due to its characteristic shape. This highlights how the word transcends its original meaning to describe a specific structural form. Understanding this technical application is crucial for anyone working in these industries, as it signifies a specific design principle that utilizes tension and curvature for strength.

The architect specified a bowstring arch for the new pedestrian bridge, ensuring both aesthetic appeal and structural integrity.

Beyond professional applications, 'bowstring' is, of course, commonly heard in recreational and competitive archery. Enthusiasts and practitioners will frequently discuss different types of bowstrings, their materials, and maintenance. In this context, the word is used in its most literal sense, referring to the essential component of a bow that propels the arrow. Learning about archery can be a fascinating way to encounter this word in an authentic setting, and it provides a direct link to its historical roots.

He carefully inspected the bowstring for any signs of wear before the competition.

§ 'Bowstring' in Academic and News Discourse

In academic settings, especially in engineering or physics courses, 'bowstring' might be used to illustrate principles of tension, force, and structural mechanics. Discussions about different types of trusses or historical engineering feats could feature this term. Students studying these subjects would encounter 'bowstring' as a descriptive term for a specific structural element, understanding its role in distributing loads and creating stability. This academic usage deepens the understanding of the word beyond its simple definition.

In news reports, 'bowstring' is less common but can appear in articles discussing new architectural projects, historical discoveries related to weaponry, or even metaphors related to tension or readiness. For instance, a headline might refer to a region's 'bowstring readiness' if it's poised for conflict, using the tautness of a bowstring as a metaphor for heightened tension. While less frequent, being attuned to such metaphorical uses demonstrates a strong grasp of the English language at the B2 level.

  • In architecture magazines, look for articles discussing 'bowstring bridges' or 'bowstring trusses'.
  • In historical documentaries or articles, listen for discussions of traditional weaponry and the role of the 'bowstring'.
  • In engineering journals, search for technical papers on structural analysis where 'bowstring' might describe a specific component.

§ Expanding Your Vocabulary with 'Bowstring'

To truly master 'bowstring' at the B2 level, practice using it in both its literal and technical senses. Try describing an arch or a curved structure you see using the term 'bowstring arch.' Consider the forces at play when an archer pulls back a bowstring, and relate that to the tension in a bridge's structural elements. This active engagement with the word will solidify your understanding and make it more accessible in your own communication. Pay attention to how it's used in different contexts and observe the subtle shifts in its meaning. The versatility of 'bowstring' as a descriptive term makes it a valuable addition to your vocabulary, particularly when discussing design, engineering, or even the historical aspects of human ingenuity.

§ Mistakes people make with "bowstring"

The word "bowstring" might seem straightforward, but its specific usage, especially in a technical context, can lead to some common errors. Let's explore some of these pitfalls to ensure you use the word accurately and effectively.

§ 1. Misunderstanding the Primary Definition

The most fundamental mistake is not fully grasping the primary definition of "bowstring" in its literal sense. While most people understand it's related to a bow, they might not recall its exact function. It's not just any string on a bow; it's the specific cord that is drawn back to propel an arrow.

DEFINITION
A bowstring is the cord that connects the two ends of a bow, which is pulled back to create the tension required to launch an arrow.

The archer carefully examined the bowstring for any signs of wear before the competition.

§ 2. Overusing the Technical Sense

While "bowstring" has a valid technical application in engineering and architecture, some speakers tend to overuse this broader sense, applying it to any curved structural element. It's crucial to remember that the technical usage implies a specific resemblance to the *string* of a bow, suggesting tension and a connecting function within a larger structure, like a truss chord, not just any arc or curve.

  • Incorrect: "The bridge had a beautiful bowstring design, with its arched main supports." (Unless the supports are literally under tension like a bowstring within a truss system, this is likely imprecise.)
  • Correct: "The bowstring truss bridge utilized a curved upper chord and a straight lower chord, with the diagonal members forming the web." (Here, "bowstring" refers to a specific truss type where the top chord resembles a bow.)

Engineers carefully calculated the tension on the bowstring of the new pedestrian bridge.

§ 3. Confusing "Bowstring" with "Bow" or "Arrow"

This might seem obvious, but in rapid conversation or writing, people can sometimes conflate "bowstring" with "bow" or "arrow." Each word has a distinct meaning and function within the archery context.

DEFINITION
A bow is the weapon, an arrow is the projectile, and the bowstring is the part that propels the arrow.

  • Incorrect: "He notched the bowstring and aimed." (You notch the arrow to the bowstring.)
  • Correct: "He notched the arrow to the bowstring and aimed."

The hunter replaced the frayed bowstring on his longbow.

§ 4. Mispronunciation or Misspelling

While less about meaning, incorrect pronunciation or spelling can still hinder clear communication. "Bowstring" is pronounced /'boʊstrɪŋ/ and is a single, compound word. Avoid separating it into two words ("bow string") unless you are specifically referring to a generic string for a bow rather than the distinct component.

The ancient artifact included a well-preserved wooden bow and its original bowstring.

§ Conclusion

By being mindful of these common mistakes, you can use "bowstring" with greater precision, whether you're discussing archery, engineering, or architecture. Always consider the context and the specific function the word is meant to convey.

§ Similar words and when to use this one vs alternatives

The term 'bowstring' is quite specific, referring primarily to the cord of a bow. However, in its extended technical sense, it can overlap with more general terms. Understanding the nuances will help you choose the most appropriate word for your context.

§ Direct Alternatives in the Archery Context

  • String: This is the most common and direct synonym for 'bowstring' when discussing archery. It's concise and universally understood.

He carefully nocked the arrow onto the string of his longbow.

DEFINITION
In archery, 'string' is often used interchangeably with 'bowstring'. It's a general term for a cord or filament.
  • Cord: This is a more general term for a thick string or rope. While a bowstring is a type of cord, using 'cord' alone might not convey the specific function as clearly as 'bowstring'.

The ancient weapon featured a tightly woven cord.

DEFINITION
A length of string or rope, or of something resembling this.

§ Technical Alternatives in Engineering/Architecture

When 'bowstring' is used in a technical sense to describe a structural component, it evokes a specific shape and function. Here are some alternatives and when to use them:

  • Chord: In the context of a truss, a 'chord' is a main member, either upper or lower. A 'bowstring truss' specifically uses a curved upper chord, resembling a bowstring.

The bridge's main support structure utilized a massive steel chord.

DEFINITION
A straight line segment whose endpoints both lie on the circle or any other curve.
  • Arch: An arch is a curved structure that spans an opening and typically supports weight from above. While a bowstring shares a curved shape, an arch is generally a compressive structure.

The ancient Roman arch still stands strong after centuries.

DEFINITION
A curved symmetrical structure spanning an opening and typically supporting the weight of a bridge, roof, or wall above it.
  • Cable/Tendon: These terms refer to flexible, tensile structural elements. While a bowstring is under tension, 'cable' or 'tendon' are generally used for larger, more robust tensile elements in engineering, such as in suspension bridges or post-tensioned concrete.

The suspension bridge is supported by massive steel cables.

DEFINITION
A thick rope of wire or fiber.

§ When to use 'bowstring'

Use 'bowstring' when:

  • You are specifically referring to the string of an archery bow. This is its primary and most common usage.
  • You are describing a structural element in engineering or architecture that *strongly* resembles the curved, tensioned string of a bow, particularly in a 'bowstring truss' or similar design where the visual and functional analogy is clear.
  • You want to evoke the imagery of tension, resilience, and a curved, taut form.

In summary, while there are related terms, 'bowstring' is best used when its direct association with a bow (either literally or figuratively in its technical sense) is intended to be precise and evocative. For more general descriptions of strings, cords, or structural members, the alternatives listed above might be more suitable.

How Formal Is It?

正式

"The suspension bridge's main cable, a critical structural element, bore the immense weight of the roadway with unwavering strength."

中性

"The violin's string vibrated, producing a clear, melodious tone as the musician drew the bow across it."

非正式

"He tied the bundle with a piece of cord he found in his pocket."

Child friendly

"The pirate captain climbed up the big rope to reach the crow's nest!"

俚语

"Yo, pass me that fishing line, I'm about to catch a big one!"

按水平分级的例句

1

He pulled the bowstring and shot the arrow.

He pulled the [string on a bow] and shot the arrow.

Simple past tense for a completed action.

2

The archer held the bowstring very tightly.

The person shooting arrows held the [string on a bow] very tightly.

Adverb 'very' intensifies the adjective 'tightly'.

3

A bowstring must be strong.

A [string on a bow] must be strong.

'Must be' expresses necessity.

4

The bowstring snapped, and he could not shoot.

The [string on a bow] broke suddenly, and he could not shoot.

Compound sentence with 'and' connecting two simple clauses.

5

You attach the bowstring to the ends of the bow.

You connect the [string on a bow] to the ends of the bow.

Present simple for general truth or instruction.

6

She learned how to put a new bowstring on her bow.

She learned how to put a new [string on a bow] on her bow.

Infinitive phrase 'how to put' shows skill acquisition.

7

Be careful when you pull the bowstring.

Be careful when you pull the [string on a bow].

Imperative sentence for giving advice.

8

The bowstring was made of strong material.

The [string on a bow] was made from strong material.

Past simple passive voice to describe what it was made of.

1

The archer carefully checked the bowstring before nocking an arrow.

Archer checks the string of their bow.

2

He pulled the bowstring back with all his might, aiming at the target.

He pulled the bow's string very hard.

3

A broken bowstring can stop an archery competition.

If the bow's string breaks, archery stops.

4

The bowstring vibrated after the arrow was released.

The string on the bow shook when the arrow left.

5

Ancient bows often had bowstrings made from animal sinew.

Old bows used animal parts for their strings.

6

In engineering, a bowstring bridge uses a curved top chord and a straight bottom chord.

A special bridge type has a curved top and straight bottom, like a bow and string.

7

Replacing a bowstring requires special tools and skill.

Changing a bow's string needs specific tools and knowledge.

8

She learned how to maintain her bow, including caring for its bowstring.

She learned to take care of her bow, including its string.

1

He carefully checked the bowstring before nocking an arrow, ensuring it was taut and undamaged.

He carefully checked the string of the bow before attaching an arrow, making sure it was tight and not broken.

Past tense verb 'checked' and present participle 'ensuring' are used here.

2

The archer's strong fingers drew the bowstring back to his ear, a testament to years of practice.

The archer's strong fingers pulled the bow's string back to his ear, showing how much he had practiced for many years.

Possessive apostrophe 'archer's' and prepositional phrase 'to his ear' are key.

3

A snapped bowstring can be dangerous, as the sudden release of tension can cause the bow to break.

A broken string on a bow can be dangerous, because the sudden letting go of tension can make the bow snap.

Present tense verb 'can be' and infinitive 'to break' are used.

4

She learned how to wax her bowstring regularly to protect it from fraying and extend its lifespan.

She learned how to put wax on the bow's string often to keep it from coming apart and make it last longer.

Past tense verb 'learned' and infinitive 'to wax' are used.

5

The ancient artifact included a well-preserved bow, though its bowstring had long since deteriorated.

The old object had a bow that was well-kept, but its string had worn away a long time ago.

Past perfect tense 'had long since deteriorated' indicates an action completed before another past action.

6

Engineers designed the bridge with a robust bowstring arch, known for its ability to distribute weight effectively.

Engineers made the bridge with a strong arch that looks like a bowstring, which is good at spreading out heavy loads.

Past tense verb 'designed' and present participle 'known for' describe the arch.

7

During the competition, a slight imperfection in his bowstring caused his arrow to fly off course.

During the contest, a small flaw in the bow's string made his arrow go in the wrong direction.

Simple past tense 'caused' and adverbial phrase 'off course' are used.

8

The sculptor incorporated a tensioned steel bowstring element into the modern art installation.

The artist who makes sculptures put a tight steel part like a bowstring into the modern art piece.

Past tense verb 'incorporated' and past participle adjective 'tensioned' are used.

1

The archer meticulously checked the integrity of the bowstring before nocking another arrow, understanding that its tensile strength was paramount to accuracy.

Archer checked bowstring's integrity; tensile strength key to accuracy.

Uses 'meticulously' (adverb) and 'paramount' (adjective) for C2 vocabulary. 'Nocking' is specific archery terminology.

2

In structural engineering, a bowstring arch bridge derives its name from the distinctive parabolic curve of its upper chord, reminiscent of an ancient weapon's string.

Bowstring arch bridge named for its curved upper chord, like a weapon's string.

Employs 'structural engineering' and 'parabolic curve' for domain-specific C2 context. 'Reminiscent of' adds sophistication.

3

The constant tension on the bowstring eventually caused fraying, necessitating its replacement to prevent a catastrophic failure during the competition.

Constant tension frayed bowstring, needing replacement to avoid competition failure.

Incorporates 'necessitating' (verb) and 'catastrophic failure' (noun phrase) for C2 expression. 'Fraying' is a descriptive verb.

4

Figuratively, the diplomatic talks were stretched to their absolute limit, like a bowstring drawn taut, threatening to snap under the immense pressure.

Diplomatic talks stretched to limit, like a taut bowstring, threatening to snap.

Uses 'figuratively' to introduce a metaphor, a common C2 rhetorical device. 'Drawn taut' and 'immense pressure' elevate the description.

5

The ancient craft of bowyer demands a profound understanding of materials, from the resilient wood of the staves to the durable fibers spun into a robust bowstring.

Bowyer craft needs deep material knowledge: wood for staves, durable fibers for bowstring.

Includes 'bowyer' (specialized noun) and 'profound understanding' (advanced vocabulary). 'Resilient' and 'robust' are C2 adjectives.

6

Even the slightest imperfection in the bowstring's weave can compromise the arrow's flight path, underscoring the precision required in its manufacture.

Slightest bowstring imperfection can affect arrow flight, highlighting manufacturing precision.

'Imperfection in the weave' is specific and advanced. 'Compromise' (verb) and 'underscoring' (verb) are C2 vocabulary.

7

The architect's innovative design incorporated exposed bowstring trusses, lending an industrial aesthetic while providing exceptional structural support.

Architect's design used exposed bowstring trusses, adding industrial look and great support.

Uses 'incorporated' (verb) and 'lending an aesthetic' (idiomatic expression). 'Exceptional structural support' is a strong C2 phrase.

8

With a twang, the worn bowstring finally gave way, sending the arrow wide of its mark and forcing a reconsideration of the equipment's maintenance regimen.

Worn bowstring snapped, arrow missed, prompting equipment maintenance review.

'Gave way' (phrasal verb) and 'regimen' (noun) are C2 level. 'Twang' is an onomatopoeic word for effect.

近义词

反义词

slackness unstrung state

如何使用

The primary meaning of bowstring refers specifically to the string of an archery bow. While the extended technical meaning exists, it's far less common in everyday language. When using the technical sense, it's often best to specify, e.g., 'the bowstring of the truss.'

常见错误

A common mistake is using 'bowstring' when simply referring to any string or cord. For example, saying 'I tied the package with a bowstring' would be incorrect unless you literally used the string from an archery bow. Another error is confusing 'bowstring' with bow tie, which is a type of necktie, or bow knot, a type of knot.

小贴士

Visualize the Core Meaning

Imagine an archer with a bow and arrow. The bowstring is the critical part that stores and releases energy. This helps connect the word to a tangible image.

Break Down the Compound Word

Notice that bowstring is made of 'bow' (the weapon) and 'string' (a cord). Understanding these two simpler words helps clarify the meaning of the compound.

Contextual Examples for Both Meanings

Practice using bowstring in sentences for both its literal meaning (e.g., 'The archer checked the tension of his bowstring.') and its technical meaning (e.g., 'The bridge's bowstring truss design was impressive.').

Draw or Sketch It

For visual learners, sketching a simple bow with its bowstring, or even a diagram of a bowstring truss, can solidify your understanding.

Identify Synonyms/Related Terms

While there aren't direct synonyms for 'bowstring,' think of related terms like 'cord,' 'string,' 'cable,' or 'tendon' (in a metaphorical sense) to broaden your understanding.

Explore Etymology (Origin)

Investigate the historical origins of 'bow' and 'string.' This can sometimes reveal fascinating connections and deepen your appreciation for the word.

Use Flashcards with Images

Create flashcards with 'bowstring' on one side and its definition along with a small image of a bow or a bowstring truss on the other.

References in Literature/Film

Look for how bowstring is used in historical fiction, fantasy novels, or films that feature archery. This can help you see its usage in a narrative context.

Practice Pronunciation

Say 'bowstring' aloud multiple times to get comfortable with its pronunciation. Pay attention to the 'ow' sound as in 'bow' (the weapon), not 'bow' as in 'take a bow'.

Avoid Confusion with 'Bow' (to bend)

Be mindful of the homograph 'bow' (to bend your head or body). The 'bow' in bowstring refers to the weapon, which has a different pronunciation.

记住它

记忆技巧

Imagine a **bow** that **strings** along two points, creating tension. The 'bowstring' is what holds the bow together, just like a string holds things together.

视觉联想

Picture a classic archery bow. Focus on the taut string connecting the two curved ends. Now, imagine a bridge with a similar curved arch, and think of the main tension cable running along the bottom as its 'bowstring'.

Word Web

archery tension arrow structural support truss

挑战

Describe three different scenarios where the term 'bowstring' could be used, one literally and two metaphorically or technically.

在生活中练习

真实语境

Archery practice or hunting scenarios where bows are used.

  • He carefully nocked the arrow onto the bowstring.
  • The bowstring vibrated after the shot.
  • She checked the bowstring for any signs of wear.

Discussions about the construction or maintenance of bows.

  • What kind of material is best for a bowstring?
  • You need to wax your bowstring regularly to keep it in good condition.
  • Replacing a broken bowstring can be tricky.

Figurative language or metaphors, often implying tension or readiness.

  • The tension in the room was pulled tight as a bowstring.
  • His nerves were stretched taut like a bowstring before the performance.
  • She felt her patience drawn to a bowstring, ready to snap.

Engineering or architectural contexts when discussing structures.

  • The bridge's design incorporated a bowstring arch.
  • The main bowstring in the truss provides crucial support.
  • Understanding the forces on the bowstring is key to structural integrity.

Historical or fictional accounts involving bows and arrows.

  • The knight drew his bowstring back, aiming for the target.
  • A faint hum of the bowstring could be heard in the forest.
  • He crafted a new bowstring from sinew and hemp.

对话开场白

"Have you ever tried archery? What was it like drawing back the bowstring?"

"Beyond its literal meaning, where else have you encountered the concept of a 'bowstring' in a figurative sense?"

"What do you think are the most important qualities of a good bowstring?"

"Can you think of any other objects or situations that evoke the same sense of tension as a drawn bowstring?"

"In what kind of structural designs do you think a 'bowstring' component would be most effective?"

日记主题

Describe a time you felt a sense of 'bowstring tension' in your own life – perhaps before a big event or a difficult conversation. How did you handle it?

Reflect on the idea of something being 'pulled taut as a bowstring.' What does this imagery suggest about the situation or feeling being described?

Imagine you are an archer preparing for a competition. Describe the process of checking your bowstring and preparing for your shot, focusing on the sensory details.

Consider the dual meaning of 'bowstring' – both as a part of a weapon and a structural element. How do these different contexts highlight the word's versatility?

Write a short story or poem where a 'bowstring' plays a significant role, either literally or metaphorically, in the plot or theme.

自我测试 144 个问题

fill blank A1

The ___ helps shoot the arrow.

正确! 不太对。 正确答案: bowstring

The bowstring is the part of the bow that you pull back to shoot the arrow.

fill blank A1

A ___ is on a bow.

正确! 不太对。 正确答案: string

A bowstring is a type of string used on a bow.

fill blank A1

You pull the ___ back.

正确! 不太对。 正确答案: bowstring

To shoot an arrow, you pull the bowstring back.

fill blank A1

The arrow flies when you let go of the ___.

正确! 不太对。 正确答案: bowstring

The bowstring launches the arrow when released.

fill blank A1

A ___ connects two ends of a bow.

正确! 不太对。 正确答案: bowstring

The bowstring is the cord that connects the ends of a bow.

fill blank A1

Without a ___, you cannot shoot an arrow from a bow.

正确! 不太对。 正确答案: bowstring

The bowstring is essential for shooting an arrow from a bow.

listening A1

Listen for the word 'bowstring'.

正确! 不太对。 正确答案: The bowstring is strong.
正确! 不太对。 正确答案:
listening A1

Listen to what he pulled.

正确! 不太对。 正确答案: He pulled the bowstring back.
正确! 不太对。 正确答案:
listening A1

What does an arrow need?

正确! 不太对。 正确答案: The arrow needs a bowstring to fly.
正确! 不太对。 正确答案:
speaking A1

Read this aloud:

Bowstring is important for a bow.

Focus: bowstring

正确! 不太对。 正确答案:
speaking A1

Read this aloud:

Can you say 'bowstring'?

Focus: bowstring

正确! 不太对。 正确答案:
speaking A1

Read this aloud:

A bow has a bowstring.

Focus: bowstring

正确! 不太对。 正确答案:
writing A1

Write a short sentence using the word 'bowstring'.

Well written! Good try! Check the sample answer below.

Sample answer

The bowstring is strong.

正确! 不太对。 正确答案:
writing A1

Complete the sentence: A bow has a ______.

Well written! Good try! Check the sample answer below.

Sample answer

A bow has a bowstring.

正确! 不太对。 正确答案:
writing A1

Describe what a bowstring does in one simple sentence.

Well written! Good try! Check the sample answer below.

Sample answer

The bowstring helps to shoot an arrow.

正确! 不太对。 正确答案:
reading A1

What is the string on a bow called?

Read this passage:

A bow is a weapon. It has a string. This string is called a bowstring. You pull the bowstring to shoot an arrow.

What is the string on a bow called?

正确! 不太对。 正确答案: a bowstring

The passage states, 'This string is called a bowstring.'

正确! 不太对。 正确答案: a bowstring

The passage states, 'This string is called a bowstring.'

reading A1

What did the archer pull back?

Read this passage:

The archer held the bow. He pulled the bowstring back. Then he let go, and the arrow flew.

What did the archer pull back?

正确! 不太对。 正确答案: the bowstring

The passage says, 'He pulled the bowstring back.'

正确! 不太对。 正确答案: the bowstring

The passage says, 'He pulled the bowstring back.'

reading A1

What is a bowstring?

Read this passage:

A bowstring is a strong cord. It connects the ends of a bow. This cord makes the bow work.

What is a bowstring?

正确! 不太对。 正确答案: a strong cord

The passage states, 'A bowstring is a strong cord.'

正确! 不太对。 正确答案: a strong cord

The passage states, 'A bowstring is a strong cord.'

sentence order A1

点击下方的词语来组成句子
正确! 不太对。 正确答案: The bow has a bowstring.

This sentence introduces the word 'bowstring' in a simple context.

sentence order A1

点击下方的词语来组成句子
正确! 不太对。 正确答案: Pull the bowstring back.

This sentence describes an action related to the bowstring.

sentence order A1

点击下方的词语来组成句子
正确! 不太对。 正确答案: The arrow sits on the bowstring.

This sentence shows the relationship between an arrow and the bowstring.

multiple choice A2

What part of a bow helps shoot an arrow?

正确! 不太对。 正确答案: the bowstring

The bowstring is pulled back to launch the arrow.

multiple choice A2

A bowstring is like a:

正确! 不太对。 正确答案: string on a guitar

A bowstring is a long, thin part that creates tension, similar to a guitar string.

multiple choice A2

You need a bowstring to:

正确! 不太对。 正确答案: make the arrow fly

The bowstring stores energy when pulled back, which then releases to send the arrow forward.

true false A2

A bowstring is used to tie shoes.

正确! 不太对。 正确答案: 错误

A bowstring is used with a bow to shoot arrows, not to tie shoes.

true false A2

Without a bowstring, a bow cannot shoot an arrow.

正确! 不太对。 正确答案: 正确

The bowstring is essential for creating the tension needed to launch an arrow.

true false A2

A bowstring can only be made from plant material.

正确! 不太对。 正确答案: 错误

Bowstrings can be made from various materials, not just plants.

listening A2

Think about what an archer uses to shoot an arrow.

正确! 不太对。 正确答案: The archer pulled back the bowstring.
正确! 不太对。 正确答案:
listening A2

What part of a bow might break and need replacing?

正确! 不太对。 正确答案: He had to replace the broken bowstring.
正确! 不太对。 正确答案:
listening A2

What makes an arrow go straight when shot from a bow?

正确! 不太对。 正确答案: A strong bowstring is important for accuracy.
正确! 不太对。 正确答案:
speaking A2

Read this aloud:

The bowstring is very tight.

Focus: bowstring

正确! 不太对。 正确答案:
speaking A2

Read this aloud:

She learned how to attach a new bowstring.

Focus: attach, bowstring

正确! 不太对。 正确答案:
speaking A2

Read this aloud:

The bowstring was made of strong material.

Focus: strong, material

正确! 不太对。 正确答案:
sentence order A2

点击下方的词语来组成句子
正确! 不太对。 正确答案: The bow has a string

This sentence describes a basic feature of a bow.

sentence order A2

点击下方的词语来组成句子
正确! 不太对。 正确答案: Pull the string back to shoot

This sentence explains the action of using a bowstring.

sentence order A2

点击下方的词语来组成句子
正确! 不太对。 正确答案: The arrow flies from the bow

This sentence describes what happens after the bowstring is released.

fill blank B1

The archer carefully checked the ___ of his bow before aiming at the target.

正确! 不太对。 正确答案: bowstring

A bowstring is the cord used to launch an arrow from a bow. The sentence describes the archer preparing to shoot, so 'bowstring' is the correct term.

fill blank B1

In the story, Robin Hood's arrow flew true because his ___ was strong and new.

正确! 不太对。 正确答案: bowstring

The sentence refers to an arrow flying from a bow, implying the use of a bowstring. The context of 'strong and new' also fits a bowstring that needs to be reliable.

fill blank B1

The old hunting bow had a frayed ___, making it unsafe to use.

正确! 不太对。 正确答案: bowstring

A 'frayed' (worn) part of a bow that makes it 'unsafe to use' would be the bowstring, as it is under tension when the bow is drawn.

fill blank B1

He needed to replace the ___ on his toy bow because it snapped.

正确! 不太对。 正确答案: bowstring

A 'toy bow' would also have a bowstring, which can snap if it's old or pulled too hard.

fill blank B1

The ancient artifact included a wooden bow with a perfectly preserved ___.

正确! 不太对。 正确答案: bowstring

An 'ancient artifact' that is a 'wooden bow' would likely have a bowstring as its functional component. A 'perfectly preserved' one suggests its importance.

fill blank B1

To fire the arrow, you must pull back the ___ and then release it.

正确! 不太对。 正确答案: bowstring

The action of 'pulling back' and 'releasing' to 'fire the arrow' directly describes how a bowstring is used.

multiple choice B1

What is the main purpose of a bowstring on a bow?

正确! 不太对。 正确答案: To create tension for shooting an arrow.

The definition states that the bowstring is 'pulled back to create the tension required to launch an arrow.'

multiple choice B1

In a technical sense, what else can a 'bowstring' refer to?

正确! 不太对。 正确答案: A structural component in engineering or architecture.

The definition mentions that 'in a broader technical sense, it can also refer to a structural component in engineering or architecture.'

multiple choice B1

If you are using a bow and arrow, what would you pull back to shoot the arrow?

正确! 不太对。 正确答案: The bowstring.

The bowstring is 'pulled back to create the tension required to launch an arrow.'

true false B1

A bowstring is used to connect the two ends of a bow.

正确! 不太对。 正确答案: 正确

The definition says, 'A bowstring is the cord that connects the two ends of a bow.'

true false B1

A bowstring is always used for shooting arrows and nothing else.

正确! 不太对。 正确答案: 错误

The definition explains that it can also refer to a 'structural component in engineering or architecture.'

true false B1

If something resembles the string of a bow in engineering, it can be called a bowstring.

正确! 不太对。 正确答案: 正确

The definition states that it 'resembles the string of a bow' in a technical sense.

listening B1

Think about what an archer uses with a bow.

正确! 不太对。 正确答案: The archer carefully checked the bowstring before aiming.
正确! 不太对。 正确答案:
listening B1

Consider what part of the bow broke.

正确! 不太对。 正确答案: The old bowstring snapped, and the arrow didn't fly far.
正确! 不太对。 正确答案:
listening B1

Think about another context where 'bowstring' is used.

正确! 不太对。 正确答案: Engineers sometimes use the term 'bowstring' to describe a curved structural part.
正确! 不太对。 正确答案:
speaking B1

Read this aloud:

The bowstring must be strong.

Focus: bowstring

正确! 不太对。 正确答案:
speaking B1

Read this aloud:

He replaced the old bowstring.

Focus: replaced

正确! 不太对。 正确答案:
speaking B1

Read this aloud:

A bowstring connects the ends of a bow.

Focus: connects

正确! 不太对。 正确答案:
writing B1

Imagine you are an archer preparing for a competition. Describe the importance of a strong and reliable bowstring for your bow. What might happen if your bowstring is old or damaged?

Well written! Good try! Check the sample answer below.

Sample answer

As an archer, I need a strong bowstring for my bow. If the bowstring is not reliable, it can affect my aim. A good bowstring helps create the right tension to shoot the arrow far. If it's old or damaged, it might break during the competition, and I would not be able to shoot.

正确! 不太对。 正确答案:
writing B1

Think about something in your daily life that acts like a 'bowstring' in a metaphorical sense – something that connects two parts and creates tension or makes something work. Describe it and explain why it's like a bowstring.

Well written! Good try! Check the sample answer below.

Sample answer

My phone charger is like a bowstring for my phone and the power outlet. It connects them and allows electricity to flow, charging my phone. Without this connection, my phone wouldn't work. It creates the 'tension' of power that makes the phone run.

正确! 不太对。 正确答案:
writing B1

You are explaining the term 'bowstring' to a friend who has never heard it before. Write a short explanation, using both the literal meaning (for a bow) and the broader technical meaning (in structures).

Well written! Good try! Check the sample answer below.

Sample answer

A bowstring is the string on a bow that you pull back to shoot an arrow. It connects the two ends of the bow. In a different way, it can also mean a strong part in a building, like a bridge, that looks like a bowstring and helps hold it up. It's important for both things!

正确! 不太对。 正确答案:
reading B1

What was an important characteristic of a bowstring for ancient hunters?

Read this passage:

In ancient times, hunters relied on their bows and arrows for food and protection. The bowstring was a crucial part of their equipment. If the bowstring was too loose, the arrow would not fly with enough power. If it was too tight, it could snap. Crafting a perfect bowstring required skill and strong materials.

What was an important characteristic of a bowstring for ancient hunters?

正确! 不太对。 正确答案: It had to be just right – not too loose and not too tight.

The passage states, 'If the bowstring was too loose, the arrow would not fly with enough power. If it was too tight, it could snap.' This implies that a perfect bowstring was neither too loose nor too tight.

正确! 不太对。 正确答案: It had to be just right – not too loose and not too tight.

The passage states, 'If the bowstring was too loose, the arrow would not fly with enough power. If it was too tight, it could snap.' This implies that a perfect bowstring was neither too loose nor too tight.

reading B1

According to the passage, how has the material for bowstrings changed?

Read this passage:

Modern archery still uses bows and bowstrings, but the materials have changed. Today's bowstrings are often made from synthetic fibers that are incredibly strong and durable. Engineers also use the concept of a 'bowstring' in bridge design. They might refer to a tension member that stretches across a gap as a bowstring, providing support to the structure.

According to the passage, how has the material for bowstrings changed?

正确! 不太对。 正确答案: They are often made from synthetic fibers, making them stronger.

The passage states, 'Today's bowstrings are often made from synthetic fibers that are incredibly strong and durable.'

正确! 不太对。 正确答案: They are often made from synthetic fibers, making them stronger.

The passage states, 'Today's bowstrings are often made from synthetic fibers that are incredibly strong and durable.'

reading B1

In a bowstring arch bridge, what part functions like the bowstring?

Read this passage:

A famous type of bridge is called a 'bowstring arch bridge.' In this design, the arch acts like the bow, and a horizontal tie-beam at the bottom acts like the bowstring. This tie-beam keeps the arch from spreading outwards, similar to how a bowstring holds the ends of a bow together.

In a bowstring arch bridge, what part functions like the bowstring?

正确! 不太对。 正确答案: The horizontal tie-beam at the bottom.

The passage clearly states, 'a horizontal tie-beam at the bottom acts like the bowstring.'

正确! 不太对。 正确答案: The horizontal tie-beam at the bottom.

The passage clearly states, 'a horizontal tie-beam at the bottom acts like the bowstring.'

sentence order B1

点击下方的词语来组成句子
正确! 不太对。 正确答案: the archer pulled back the bowstring

This sentence describes a common action involving a bowstring.

sentence order B1

点击下方的词语来组成句子
正确! 不太对。 正确答案: A strong bowstring is essential for hunting

This sentence highlights the importance of a strong bowstring.

sentence order B1

点击下方的词语来组成句子
正确! 不太对。 正确答案: The bridge's design used a bowstring arch for support

This sentence uses the technical meaning of bowstring in architecture.

fill blank B2

The archer carefully checked the ___ of his bow before taking aim.

正确! 不太对。 正确答案: bowstring

The bowstring is the part of the bow that is pulled back to launch an arrow, making it the most appropriate choice in this context.

fill blank B2

In ancient times, hunters relied on a strong ___ to propel their arrows with force.

正确! 不太对。 正确答案: bowstring

The bowstring is essential for propelling arrows, fitting the historical context of hunting.

fill blank B2

The engineer explained that the bridge's main support structure used a ___ design for added stability.

正确! 不太对。 正确答案: bowstring

In a technical sense, a 'bowstring' design refers to a structural component resembling a bowstring, providing stability.

fill blank B2

A damaged ___ can significantly reduce the accuracy and power of a bow.

正确! 不太对。 正确答案: bowstring

The bowstring is crucial for the bow's functionality; damage to it would directly impact accuracy and power.

fill blank B2

During the competition, a sudden snap of the ___ caused the archer to miss his shot.

正确! 不太对。 正确答案: bowstring

A snapped bowstring would prevent an arrow from being launched, leading to a missed shot.

fill blank B2

The architect incorporated a ___ truss system into the roof design to distribute weight effectively.

正确! 不太对。 正确答案: bowstring

A 'bowstring truss' is a specific architectural design that utilizes the concept of a bowstring for structural support and weight distribution.

listening B2

Listen for the action the archer performs related to the bowstring.

正确! 不太对。 正确答案: The archer carefully checked the bowstring for any signs of wear before the competition.
正确! 不太对。 正确答案:
listening B2

Pay attention to the context in which 'bowstring' is used in relation to the bridge.

正确! 不太对。 正确答案: Engineers designed the new bridge with a bowstring arch to distribute the weight efficiently.
正确! 不太对。 正确答案:
listening B2

What effect does a loose bowstring have on the arrow?

正确! 不太对。 正确答案: He explained that a loose bowstring would significantly affect the arrow's trajectory.
正确! 不太对。 正确答案:
speaking B2

Read this aloud:

The bowstring is crucial for propelling the arrow with speed and accuracy.

Focus: bowstring, crucial, propelling, accuracy

正确! 不太对。 正确答案:
speaking B2

Read this aloud:

In structural engineering, a bowstring truss combines tension and compression elements.

Focus: structural, engineering, bowstring, truss, tension, compression

正确! 不太对。 正确答案:
speaking B2

Read this aloud:

To maintain optimal performance, a bowstring needs to be regularly inspected and sometimes replaced.

Focus: optimal, performance, regularly, inspected, replaced

正确! 不太对。 正确答案:
writing B2

Imagine you are an engineer designing a new bridge. How might you use the concept of a 'bowstring' in your design, either literally or metaphorically? Explain your idea in a short paragraph.

Well written! Good try! Check the sample answer below.

Sample answer

In designing a new pedestrian bridge, I would consider a bowstring arch design. This would involve a curved arch acting as the 'bow', with a straight tie beam connecting its ends, serving as the 'bowstring'. This configuration effectively handles the tension, distributing the load and allowing for a lighter yet strong structure that can span a significant distance over a river.

正确! 不太对。 正确答案:
writing B2

Write a short descriptive paragraph about an archer preparing to shoot an arrow, making sure to include the word 'bowstring' in your description.

Well written! Good try! Check the sample answer below.

Sample answer

The archer, with a focused gaze, nocked an arrow onto the bowstring. She drew back the string with a smooth, controlled motion, feeling the increasing tension in the flexible wood of the bow. Her muscles tensed, holding the taut bowstring steady, before she released, sending the arrow swiftly towards its target.

正确! 不太对。 正确答案:
writing B2

Explain the difference between a literal bowstring (on a bow) and its metaphorical use in engineering. Provide an example for each.

Well written! Good try! Check the sample answer below.

Sample answer

A literal bowstring is the cord on an archery bow that stores and releases energy to propel an arrow, like the strong cord on a longbow. Its metaphorical use in engineering refers to a structural component that resembles this cord, often under tension, as seen in a bowstring truss bridge where the bottom chord acts like the bowstring, connecting the ends of the arched top chord.

正确! 不太对。 正确答案:
reading B2

What was a key characteristic of historical bowstrings that made them effective?

Read this passage:

Historically, the bowstring was a crucial component of bows, often made from natural fibers like hemp, linen, or animal sinew. Its strength and elasticity were paramount to the bow's effectiveness. Over centuries, the materials and techniques for crafting bowstrings evolved, leading to more durable and powerful bows. In modern archery, synthetic materials are commonly used for their consistency and weather resistance.

What was a key characteristic of historical bowstrings that made them effective?

正确! 不太对。 正确答案: Their strength and elasticity

The passage states, 'Its strength and elasticity were paramount to the bow's effectiveness.'

正确! 不太对。 正确答案: Their strength and elasticity

The passage states, 'Its strength and elasticity were paramount to the bow's effectiveness.'

reading B2

What is the primary function of the straight bottom chord in a bowstring truss?

Read this passage:

In architecture, a 'bowstring' truss is a type of truss design that features a curved top chord and a straight bottom chord. This design is often employed in long-span structures, such as bridges and aircraft hangars, because it efficiently distributes compression and tension forces. The curved top chord acts like the bow, primarily in compression, while the straight bottom chord acts like the bowstring, primarily in tension.

What is the primary function of the straight bottom chord in a bowstring truss?

正确! 不太对。 正确答案: To act primarily in tension, similar to a bowstring

The passage explicitly states, 'the straight bottom chord acts like the bowstring, primarily in tension.'

正确! 不太对。 正确答案: To act primarily in tension, similar to a bowstring

The passage explicitly states, 'the straight bottom chord acts like the bowstring, primarily in tension.'

reading B2

According to the passage, what is a potential consequence of using a weak or poorly maintained bowstring?

Read this passage:

The material used for a bowstring significantly impacts the performance of an archery bow. A good bowstring must be resistant to stretching and abrasion, and it needs to be able to withstand the repeated shock of releasing an arrow. A weak or poorly maintained bowstring can lead to inconsistent arrow flight and even damage to the bow itself.

According to the passage, what is a potential consequence of using a weak or poorly maintained bowstring?

正确! 不太对。 正确答案: Inconsistent arrow flight and potential bow damage

The passage states, 'A weak or poorly maintained bowstring can lead to inconsistent arrow flight and even damage to the bow itself.'

正确! 不太对。 正确答案: Inconsistent arrow flight and potential bow damage

The passage states, 'A weak or poorly maintained bowstring can lead to inconsistent arrow flight and even damage to the bow itself.'

sentence order B2

点击下方的词语来组成句子
正确! 不太对。 正确答案: The archer carefully nocked the arrow onto the bowstring.

This sentence describes the action of an archer preparing to shoot an arrow, placing it on the bowstring.

sentence order B2

点击下方的词语来组成句子
正确! 不太对。 正确答案: The bowstring's tension was crucial for the arrow's speed and accuracy.

This sentence explains the importance of the bowstring's tension in archery.

sentence order B2

点击下方的词语来组成句子
正确! 不太对。 正确答案: Engineers designed the bridge with a bowstring truss structure for added strength.

This sentence uses the broader technical definition of 'bowstring' in an engineering context.

fill blank C1

The tension in the ___ was so great that the archer feared it might snap during the competition.

正确! 不太对。 正确答案: bowstring

The 'bowstring' is the cord pulled to create tension for launching an arrow, which directly relates to the context of an archer and tension.

fill blank C1

Engineers designed the bridge with a specialized ___ truss, known for its ability to distribute loads efficiently across a wide span.

正确! 不太对。 正确答案: bowstring

In engineering, a 'bowstring' truss is a structural component that resembles a bow's string, making it the most appropriate term for a bridge design.

fill blank C1

With a taut ___, the ancient hunter carefully aimed at his prey, relying on centuries of tribal knowledge.

正确! 不太对。 正确答案: bowstring

A 'taut bowstring' is essential for an archer to aim and launch an arrow effectively, fitting the context of an ancient hunter.

fill blank C1

The architect incorporated a ___ arch into the building's design, creating a striking visual element that also provided structural support.

正确! 不太对。 正确答案: bowstring

A 'bowstring' arch, similar to a bowstring truss, is a structural component in architecture, making it the correct term for a building's design.

fill blank C1

After years of use, the old ___ became frayed and unreliable, necessitating its replacement before the next hunting season.

正确! 不太对。 正确答案: bowstring

A 'bowstring' is a consumable part of a bow that can fray and become unreliable with age, requiring replacement.

fill blank C1

The intricate engineering of the new stadium featured massive steel ___ that curved gracefully, supporting the enormous roof structure.

正确! 不太对。 正确答案: bowstrings

In an engineering context, 'bowstrings' can refer to structural components that are curved and resemble a bow's string, used to support large structures like a stadium roof.

multiple choice C1

The architect specified a curved steel ___ to support the immense weight of the domed roof, mimicking the tension of its namesake.

正确! 不太对。 正确答案: bowstring

In an architectural context, a 'bowstring' refers to a structural component that resembles the string of a bow, often curved and under tension, which fits the description of supporting a domed roof.

multiple choice C1

The tension in the ancient hunting bow's ___ was so great that it could launch an arrow with incredible force and accuracy.

正确! 不太对。 正确答案: bowstring

The 'bowstring' is the cord that connects the two ends of a bow and is pulled back to create tension for launching an arrow.

multiple choice C1

Despite its seemingly delicate appearance, the intricate ___ of the bridge allowed it to distribute enormous loads across its span, a testament to clever engineering.

正确! 不太对。 正确答案: bowstring

In engineering, a 'bowstring' can refer to a structural component in a truss or bridge that resembles the string of a bow, designed to handle significant loads.

true false C1

A bowstring in engineering always refers to a purely aesthetic curved element that adds visual appeal without contributing to structural integrity.

正确! 不太对。 正确答案: 错误

In engineering, a bowstring is a structural component, like a chord in a truss, that plays a crucial role in distributing loads and maintaining structural integrity, not just for aesthetics.

true false C1

The primary function of a bowstring on a traditional archer's bow is to provide a comfortable grip for the archer's hand.

正确! 不太对。 正确答案: 错误

The primary function of a bowstring on an archer's bow is to create the tension necessary to launch an arrow, not to provide a grip.

true false C1

When used in an architectural context, a 'bowstring' typically implies a component that is straight and rigid, unlike its namesake.

正确! 不太对。 正确答案: 错误

In architecture, a 'bowstring' refers to a structural component that 'resembles the string of a bow,' implying a curved or tensioned element, not necessarily straight and rigid.

listening C1

Focus on the sound of 'bowstring' and its context in archery.

正确! 不太对。 正确答案: The ancient archer carefully nocked an arrow, drawing back the bowstring until it was taut.
正确! 不太对。 正确答案:
listening C1

Listen for 'bowstring' used in a technical, architectural sense.

正确! 不太对。 正确答案: Engineers designed the bridge with a robust bowstring arch to distribute the load efficiently.
正确! 不太对。 正确答案:
listening C1

Pay attention to the word 'bowstring' and how it conveys a sense of readiness.

正确! 不太对。 正确答案: The tension in the bowstring was palpable, a testament to the hunter's unwavering focus.
正确! 不太对。 正确答案:
speaking C1

Read this aloud:

The architect explained how the bowstring truss provides exceptional structural integrity to the building.

Focus: bowstring truss, structural integrity

正确! 不太对。 正确答案:
speaking C1

Read this aloud:

In historical reenactments, the authentic feel of a traditional bowstring is crucial for an immersive experience.

Focus: authentic feel, traditional bowstring, immersive experience

正确! 不太对。 正确答案:
speaking C1

Read this aloud:

He described the intricate process of crafting a custom bowstring, highlighting the skill involved.

Focus: intricate process, crafting a custom bowstring, skill involved

正确! 不太对。 正确答案:
writing C1

Imagine you are an engineer designing a new pedestrian bridge. Describe how you might incorporate a 'bowstring' design element into your plans, considering both its structural benefits and aesthetic appeal.

Well written! Good try! Check the sample answer below.

Sample answer

In designing the new pedestrian bridge, I envision a 'bowstring' truss system to maximize both structural integrity and visual elegance. The curved top chord, acting like the bow, would efficiently transfer compressive forces, while the straight bottom chord, akin to the bowstring, would manage tensile stresses, ensuring stability over a significant span. This design not only provides robust load-bearing capabilities but also creates an aesthetically pleasing arch that complements the surrounding natural landscape, becoming a landmark rather than just a crossing.

正确! 不太对。 正确答案:
writing C1

Discuss the figurative use of 'bowstring' to describe a feeling of extreme tension or a challenging situation. Provide an example from literature or everyday life where this metaphor would be appropriate.

Well written! Good try! Check the sample answer below.

Sample answer

Figuratively, 'bowstring' perfectly encapsulates a feeling of extreme tension or a high-pressure situation, suggesting a state where something is stretched to its limit, poised for release or rupture. For instance, in a high-stakes negotiation, the atmosphere can become 'taut as a bowstring,' where every word is carefully weighed, and a single misstep could unravel the entire agreement. This metaphor effectively conveys the delicate balance and the imminent possibility of a critical outcome, much like an archer's bowstring held under maximum strain before an arrow is loosed.

正确! 不太对。 正确答案:
writing C1

Explain the essential function of a bowstring in archery and how its material properties contribute to the performance of the bow. Consider traditional and modern materials.

Well written! Good try! Check the sample answer below.

Sample answer

In archery, the bowstring is the linchpin for transferring potential energy into kinetic energy, propelling the arrow. Its essential function is to efficiently store and release the tension created when the bow is drawn. The material properties are paramount: traditional materials like linen or hemp offered a balance of strength and flexibility, though they were susceptible to environmental factors. Modern bowstrings, often made from synthetic fibers like Dacron or Dyneema, boast superior tensile strength, minimal stretch, and excellent weather resistance, leading to increased arrow speed, greater accuracy, and enhanced durability. These advanced materials ensure that virtually all the stored energy in the limbs is translated into arrow velocity, maximizing the bow's overall performance.

正确! 不太对。 正确答案:
reading C1

According to the passage, what was a crucial factor for both accuracy and the longevity of an ancient bow?

Read this passage:

The ancient art of archery relied heavily on the quality and maintenance of the bowstring. A poorly crafted or damaged bowstring could not only impede the arrow's flight but also pose a significant danger to the archer. Therefore, meticulous attention was paid to its construction, often involving multiple strands of natural fibers twisted together and reinforced with protective waxes or resins. The consistency of the string's elasticity and strength was paramount for both accuracy and the longevity of the bow itself.

According to the passage, what was a crucial factor for both accuracy and the longevity of an ancient bow?

正确! 不太对。 正确答案: The consistency of the bowstring's elasticity and strength.

The passage explicitly states, 'The consistency of the string's elasticity and strength was paramount for both accuracy and the longevity of the bow itself.'

正确! 不太对。 正确答案: The consistency of the bowstring's elasticity and strength.

The passage explicitly states, 'The consistency of the string's elasticity and strength was paramount for both accuracy and the longevity of the bow itself.'

reading C1

What is a key advantage of using a bowstring truss in structural engineering?

Read this passage:

In structural engineering, a bowstring truss is a common design, particularly for bridges and large roof structures. This design incorporates a curved upper chord, resembling a bow, and a straight lower chord, acting as the bowstring. This configuration is highly efficient in distributing compressive forces along the upper chord and tensile forces along the lower chord, making it an excellent choice for spanning long distances with minimal material.

What is a key advantage of using a bowstring truss in structural engineering?

正确! 不太对。 正确答案: It efficiently distributes forces, allowing for long spans.

The passage states, 'This configuration is highly efficient in distributing compressive forces along the upper chord and tensile forces along the lower chord, making it an excellent choice for spanning long distances with minimal material.'

正确! 不太对。 正确答案: It efficiently distributes forces, allowing for long spans.

The passage states, 'This configuration is highly efficient in distributing compressive forces along the upper chord and tensile forces along the lower chord, making it an excellent choice for spanning long distances with minimal material.'

reading C1

When used figuratively, what does 'bowstring' primarily imply about a situation?

Read this passage:

Figuratively, the term 'bowstring' can be used to describe a situation or a person under immense pressure, stretched to the very limits of endurance. The metaphor suggests that any further strain could lead to a sudden and potentially catastrophic break. This usage is often found in contexts where tension is building, and a critical point is rapidly approaching, such as in intense diplomatic negotiations or emotionally charged personal conflicts.

When used figuratively, what does 'bowstring' primarily imply about a situation?

正确! 不太对。 正确答案: It is under extreme pressure and close to a breaking point.

The passage explains that the metaphor 'suggests that any further strain could lead to a sudden and potentially catastrophic break,' implying extreme pressure.

正确! 不太对。 正确答案: It is under extreme pressure and close to a breaking point.

The passage explains that the metaphor 'suggests that any further strain could lead to a sudden and potentially catastrophic break,' implying extreme pressure.

fill blank C2

The architect specified a curvilinear steel beam, likening its elegant arc to a structural ___ that would provide both aesthetic appeal and crucial support for the colossal atrium's glass canopy.

正确! 不太对。 正确答案: bowstring

The context implies a structural element with a curved shape, similar to a bow's string, used in architecture for support and aesthetic reasons. 'Bowstring' perfectly fits this description in its broader technical sense.

fill blank C2

Despite the relentless tension and repeated stress of high-performance archery, a meticulously crafted ___ can endure countless shots, a testament to the resilience of its material and the precision of its braiding.

正确! 不太对。 正确答案: bowstring

The sentence describes the physical cord used in archery, highlighting its durability under stress. 'Bowstring' is the precise term for this component.

fill blank C2

The engineer calculated the exact force exerted upon the bridge's main support cables, recognizing their critical function as the metaphorical ___ holding the entire suspended structure in equilibrium against gravitational pull.

正确! 不太对。 正确答案: bowstring

Here, 'bowstring' is used metaphorically to describe a critical tension-bearing component in a large structure, reflecting its role in maintaining balance, similar to how a bowstring holds a bow in tension.

fill blank C2

In the intricate mechanics of the ancient siege engine, the immense energy stored within the tautly drawn ___ was instantaneously released, propelling a massive projectile with devastating force towards the fortified walls.

正确! 不太对。 正确答案: bowstring

This sentence refers to a component of a large-scale weapon that stores and releases energy through tension, directly analogous to a bow's string. 'Bowstring' is the appropriate term.

fill blank C2

The intricate design of the fabric roof of the stadium employed a series of high-strength cables, each acting as a vital ___, distributing the immense wind loads and ensuring the stability of the vast, undulating canopy.

正确! 不太对。 正确答案: bowstring

The description points to a cable-like structural element within a large fabric structure that handles tension and distributes loads, aligning with the technical definition of 'bowstring' as a structural component.

fill blank C2

For competitive archers, maintaining the pristine condition of their ___ is paramount, as even a minor fray or imperfection can drastically alter arrow trajectory and compromise accuracy, especially in high-stakes tournaments.

正确! 不太对。 正确答案: bowstring

This sentence directly addresses the physical string of an archery bow and its importance for performance, making 'bowstring' the only correct answer.

listening C2

Focus on the nuance of 'palpable' and 'formidable' in relation to the bowstring's tension.

正确! 不太对。 正确答案: The tension in the bowstring was palpable, a testament to the archer's formidable strength.
正确! 不太对。 正确答案:
listening C2

Pay attention to how 'bowstring' is used metaphorically in an architectural context.

正确! 不太对。 正确答案: He described the new bridge's design as a marvel of engineering, likening its central support to a gigantic bowstring under immense stress.
正确! 不太对。 正确答案:
listening C2

Consider the figurative use of 'bowstring' to describe the speaker's vocal quality.

正确! 不太对。 正确答案: The orator's voice, taut as a bowstring, commanded the attention of the entire assembly, each word imbued with conviction.
正确! 不太对。 正确答案:
speaking C2

Read this aloud:

Articulate how the metaphorical application of 'bowstring' in describing a political compromise suggests an underlying tension that could unravel at any moment.

Focus: articulate, metaphorical, application, compromise, underlying, tension, unravel

正确! 不太对。 正确答案:
speaking C2

Read this aloud:

Discuss the structural integrity of a bowstring bridge, explaining how the principle of tension and compression, analogous to a traditional bow and arrow, contributes to its stability.

Focus: structural, integrity, principle, tension, compression, analogous, stability

正确! 不太对。 正确答案:
speaking C2

Read this aloud:

Expound on the historical significance of the bowstring in warfare and hunting, detailing its evolution and the impact of material science on its effectiveness over centuries.

Focus: expound, historical, significance, warfare, hunting, evolution, material, science, effectiveness

正确! 不太对。 正确答案:
writing C2

Discuss the metaphorical applications of the term 'bowstring' in contemporary literature or political discourse, considering its implications for tension, connection, and potential release. Provide specific examples to support your analysis.

Well written! Good try! Check the sample answer below.

Sample answer

In contemporary literature, 'bowstring' frequently serves as a powerful metaphor for underlying societal tensions or the delicate bonds that hold disparate elements together. For instance, a novelist might describe a community as being 'stretched taut like a bowstring' on the brink of conflict, illustrating the immense pressure and the precariousness of peace. Similarly, in political discourse, the 'bowstring of international alliances' can represent the fragile yet critical connections between nations, where any sudden strain could lead to a catastrophic unraveling. The imagery evokes a sense of impending action, suggesting that once the 'bowstring' is released, significant and often irreversible consequences will ensue. This dual nature—of holding together and of potential destructive force—makes 'bowstring' a particularly evocative and versatile metaphor for conveying complex dynamics in both fictional narratives and real-world analyses.

正确! 不太对。 正确答案:
writing C2

Analyze the etymological journey of the word 'bowstring' and its evolution in meaning from a literal object to its more abstract and technical interpretations. How does this linguistic development reflect broader societal and technological changes?

Well written! Good try! Check the sample answer below.

Sample answer

The etymological journey of 'bowstring' showcases a fascinating linguistic evolution from a purely literal descriptor to a term imbued with abstract and technical significance. Initially, 'bowstring' precisely referred to the cord of an archery bow, its meaning rooted in the practical realities of ancient weaponry and hunting. As human ingenuity advanced, and the principles of tension and structural integrity found applications beyond archery, the term began to acquire broader connotations. In engineering and architecture, for example, 'bowstring' transmuted to describe the curved or chord-like component in a truss or other structural designs that mimics the taut string of a bow. This semantic expansion mirrors a societal shift from purely manual and direct applications of concepts to more abstract and generalized scientific and engineering principles. The development reflects a technological progression where fundamental mechanical concepts are reapplied in increasingly sophisticated contexts, with language adapting to describe these new realities. Thus, 'bowstring' serves as a linguistic artifact, chronicling humanity's evolving understanding and application of physical forces.

正确! 不太对。 正确答案:
writing C2

Using the concept of a 'bowstring' as a central theme, compose a short narrative (approximately 150-200 words) that explores the tension between tradition and innovation. Your narrative should feature a character or community grappling with significant change.

Well written! Good try! Check the sample answer below.

Sample answer

Elara’s village had always relied on the ancient hunting bows, their weathered wooden limbs and hand-spun bowstrings a testament to generations of tradition. But the famine tightened its grip, and the old ways felt increasingly inadequate. A young blacksmith, Kael, proposed a radical idea: crossbows. 'The bowstring of our heritage is strong,' protested the elders, 'but it cannot pierce stone.' Kael argued that true strength lay in adapting, in forging a 'bowstring' of steel and mechanism that offered greater precision and power. The tension in the village was palpable, stretched taut like a fully drawn bow. Elara, torn between loyalty to her ancestors and the desperate pleas of her hungry family, watched as Kael demonstrated his invention. The crossbow’s bolt flew true, felling a deer at an impossible distance. The snap of the release was not just the string’s sound, but the sound of a community choosing innovation, a new kind of 'bowstring' that honored their past by securing their future.

正确! 不太对。 正确答案:
reading C2

According to the passage, what is the primary function of the 'bowstring' in a bowstring arch bridge?

Read this passage:

In structural engineering, a bowstring arch bridge derives its name from its distinctive shape, where the arch acts as a bow and the deck as the bowstring. This design efficiently converts vertical loads into horizontal thrusts, distributing forces optimally. The tension in the 'bowstring' (the deck) is critical for counteracting the outward forces of the arch, maintaining structural integrity. Without this essential component, the arch would simply spread outwards, leading to catastrophic failure. The materials chosen for the deck, therefore, must possess exceptional tensile strength.

According to the passage, what is the primary function of the 'bowstring' in a bowstring arch bridge?

正确! 不太对。 正确答案: To counteract the outward forces of the arch and maintain structural integrity.

The passage explicitly states: 'The tension in the 'bowstring' (the deck) is critical for counteracting the outward forces of the arch, maintaining structural integrity.'

正确! 不太对。 正确答案: To counteract the outward forces of the arch and maintain structural integrity.

The passage explicitly states: 'The tension in the 'bowstring' (the deck) is critical for counteracting the outward forces of the arch, maintaining structural integrity.'

reading C2

What does the metaphorical use of 'bowstring' in ancient military strategy primarily emphasize?

Read this passage:

The concept of a 'bowstring' in ancient military strategy extended beyond its literal application to archery. Commanders often described the strategic alignment of their forces, particularly their flanks, as being drawn taut like a bowstring to maximize the kinetic energy of an impending assault. This metaphorical usage emphasized not just the physical tension, but also the psychological preparedness and unified purpose of the troops. A commander who could 'draw the bowstring' of his army understood the delicate balance between cohesion and aggressive deployment, aiming for a swift and decisive release of power.

What does the metaphorical use of 'bowstring' in ancient military strategy primarily emphasize?

正确! 不太对。 正确答案: The psychological preparedness and unified purpose of the troops, alongside physical tension.

The passage states: 'This metaphorical usage emphasized not just the physical tension, but also the psychological preparedness and unified purpose of the troops.'

正确! 不太对。 正确答案: The psychological preparedness and unified purpose of the troops, alongside physical tension.

The passage states: 'This metaphorical usage emphasized not just the physical tension, but also the psychological preparedness and unified purpose of the troops.'

reading C2

According to the passage, what is the 'release' of the metaphorical 'bowstring' of life described as?

Read this passage:

In a philosophical sense, life itself can sometimes feel like a bowstring – stretched between past experiences and future aspirations. The tension is ever-present, a dynamic force propelling us forward, yet also threatening to snap if pushed too far. Each decision, each challenge overcome, adds to the cumulative strain. However, it is precisely this tension, this constant pull, that gives our existence its potential for profound impact, much like the energy stored in a drawn bow. The 'release' of this metaphorical bowstring can manifest as a breakthrough, a significant achievement, or even a cathartic acceptance of fate.

According to the passage, what is the 'release' of the metaphorical 'bowstring' of life described as?

正确! 不太对。 正确答案: A breakthrough, a significant achievement, or a cathartic acceptance of fate.

The passage states: 'The 'release' of this metaphorical bowstring can manifest as a breakthrough, a significant achievement, or even a cathartic acceptance of fate.'

正确! 不太对。 正确答案: A breakthrough, a significant achievement, or a cathartic acceptance of fate.

The passage states: 'The 'release' of this metaphorical bowstring can manifest as a breakthrough, a significant achievement, or even a cathartic acceptance of fate.'

sentence order C2

点击下方的词语来组成句子
正确! 不太对。 正确答案: the bowstring twanged as the arrow flew

This sentence describes the sound a bowstring makes when an arrow is released.

sentence order C2

点击下方的词语来组成句子
正确! 不太对。 正确答案: engineers designed the bridge's arch like a massive bowstring

This sentence uses the technical definition of 'bowstring' to describe a structural component.

sentence order C2

点击下方的词语来组成句子
正确! 不太对。 正确答案: he checked the integrity of the bowstring before nocking an arrow

This sentence refers to the physical inspection of a bowstring before use.

/ 144 correct

Perfect score!

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anvil

C1

A heavy iron or steel block with a flat top, typically used by blacksmiths to hammer and shape heated metal. It is a fundamental tool in metalworking that provides a resistant surface for forging and shaping objects.

bodkin

B2

用尖锐的器具刺穿或插入。

maldentize

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不正确地塑造、对齐或在表面上创建有缺陷的缩进。

dishydrer

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A specialized apparatus or chemical agent used to extract moisture from substances or environments. It is commonly employed in industrial processing, laboratory research, and food preservation to ensure stability and longevity by removing water content.

thermometer

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A thermometer is an instrument used to measure temperature or a temperature gradient. It is commonly used in medical settings to check for fever or in weather stations to monitor atmospheric conditions.

brake

B2

A device or mechanism used for slowing down or stopping a moving vehicle or machine by applying pressure. In a figurative or academic sense, it refers to any factor that hinders, restricts, or slows down the progress of a process or activity.

brushed

B2

In technical and design contexts, a 'brushed' finish refers to a surface texture created by rubbing material with a fine abrasive, resulting in a matte, non-reflective appearance with fine parallel lines. It is commonly used in material science, architecture, and manufacturing to describe specific physical properties of metals or fabrics.

brush

B2

A tool consisting of bristles, hair, or wire set into a handle, used for cleaning, grooming, or applying paint. Metaphorically, in academic and formal contexts, it refers to a brief, often unpleasant, encounter or skirmish with something.

inspecible

C1

能够被仔细检查或审查以确定其状况或质量的东西。

antisectile

C1

To treat or modify a material or substance to make it resistant to being cut, sliced, or divided. This term is typically used in industrial and materials science contexts to describe hardening processes that prevent shearing or mechanical cleavage.

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