C1 adjective #15,000 最常用 9分钟阅读

attenuate

Imagine you have a really strong light, and then you put a thin cloth over it. The light becomes weaker, right?

That's like saying the light is attenuated. It means something is made less strong, less powerful, or thinner.

Think about a loud noise that gets softer as you move away. The noise is attenuated.

It's like making something smaller or less intense.

Imagine something strong, like a loud noise or a powerful light. Now, imagine if that noise or light becomes weaker, softer, or dimmer. That's what attenuate means.

It's like when a strong signal on your phone gets weaker when you go indoors, or when a bright flashlight starts to dim as its batteries run low.

So, if something is attenuated, it means its power, strength, or effect has been made smaller or less.

It's often used when talking about things like sounds, signals, or even tiny germs that are made less harmful.

When something is attenuated, it means it has been made weaker or less strong.

Imagine a sound that gets quieter as you move away from it; that sound is attenuating.

It's like turning down the volume, making something less powerful or intense.

So, an attenuated signal is a weak signal, and an attenuated virus is a weakened virus.

Imagine you have a strong sound, and you make it quieter. Or think of a thick rope that becomes thinner. When something is attenuated, it means its strength, effect, or thickness has been reduced or weakened. This word is often used to talk about things like signals, where a strong signal might become weaker as it travels, or even about viruses that are made less harmful for vaccines. It's about making something less intense or less powerful than it was before.

When something is attenuated, it means its strength, impact, or thickness has been lessened or weakened. Imagine a strong signal that becomes fainter over a distance – that's attenuation. This term is frequently used in scientific fields, such as when discussing a virus that has been made less harmful for a vaccine, or a sound wave that loses intensity as it travels. It describes a reduction in force or effect, making something less potent or substantial.

When something is attenuated, it means its intensity, force, or value has been deliberately or naturally diminished. This term is frequently encountered in scientific and technical fields, such as in medicine where a virus might be attenuated to create a vaccine, or in engineering to describe a signal losing strength over distance. Essentially, it refers to a process of weakening or reducing without necessarily eliminating entirely. The result is a less potent, less dense, or less severe form of the original.

attenuate 30秒了解

  • Reduced in strength or effect.
  • Often used in scientific and technical fields.
  • Implies a weakening or thinning.

§ Understanding 'Attenuate'

DEFINITION
To make something weaker or less effective; to reduce the force, effect, or value of something. When used as an adjective, it describes something that has been reduced in force, effect, or physical thickness.

The word 'attenuate' (pronounced uh-TEN-yoo-ayt) is a versatile term that primarily conveys the idea of reduction, weakening, or thinning. While it can function as a verb, in its adjectival form, it describes a state of being reduced or weakened. It's a term you'll frequently encounter in scientific, technical, and medical contexts, but its application isn't strictly limited to these fields.

Think of 'attenuate' as a more precise and often more formal way of saying 'weakened,' 'lessened,' or 'diluted.' It implies a deliberate or natural process by which something's intensity, power, or density is decreased.

§ When Do People Use 'Attenuate'?

People use 'attenuate' in a variety of situations where there's a need to describe a decrease in strength, impact, or concentration. Here are some common scenarios:

  • In Science and Technology: This is perhaps where 'attenuate' finds its most frequent use.
    • Signals: In telecommunications, an 'attenuated signal' refers to a signal that has lost strength as it travels over distance or through a medium.
    • The radio receiver struggled to pick up the attenuated satellite signal due to atmospheric interference.

    • Light and Sound: Light and sound waves can also be attenuated when they pass through certain materials or travel long distances.
    • The thick curtains provided an attenuated light, creating a dim and cozy atmosphere in the room.

    • Viruses/Bacteria: In medicine and biology, 'attenuated viruses' are those that have been weakened to the point where they can still stimulate an immune response without causing severe disease. These are crucial for vaccine development.
    • Many vaccines use an attenuated form of the virus to safely build immunity.

    • In General/Figurative Use: While more common in technical fields, 'attenuate' can also be used in a broader sense to describe a reduction in abstract concepts like force, impact, or emotion.
      • Impact/Effect: To describe a diminished influence or outcome.
      • The government implemented policies designed to have an attenuated effect on inflation, hoping for a gradual recovery.

      • Physical Thickness/Density: To describe something made thinner or less dense.
      • The ancient manuscript had pages so attenuated by age that they were almost transparent.

    Understanding 'attenuate' enriches your vocabulary, especially if you're engaging with scientific, medical, or technical literature. It allows for a precise description of weakening or reduction that might not be fully captured by simpler synonyms.

    § Adjective vs. Verb

    It's important to remember that 'attenuate' can also be used as a verb, meaning 'to reduce the force, effect, or value of something.' When used as an adjective ('attenuated'), it describes something that has already been subjected to this process.

    EXAMPLE (VERB)
    The thick fog began to attenuate the sunlight, making the morning feel much darker.

    In summary, 'attenuate' as an adjective paints a picture of something lessened, weakened, or thinned. Its usage typically adds a layer of technical precision to the description, making it a valuable word for conveying specific reductions in various contexts.

§ Attenuate in Work Settings

The word "attenuate" finds a frequent home in various professional fields, particularly those dealing with technical specifications, scientific research, and health. Understanding its usage in these contexts is crucial for effective communication and comprehension.

Networking and Telecommunications
In the world of IT and telecommunications, "attenuate" is commonly used to describe the reduction in signal strength as it travels through a medium. This can be due to distance, obstacles, or even the type of cable used. Engineers often work to minimize signal attenuation to ensure clear and reliable data transmission.

The long-distance fiber optic cable was designed to attenuate the signal as little as possible.

Medicine and Biology
In medical and biological research, "attenuate" is frequently used when discussing viruses or bacteria that have been weakened to create vaccines. An attenuated virus is one that has been modified so it can no longer cause disease but can still stimulate an immune response. This principle is fundamental to many successful vaccination programs.

Scientists worked to attenuate the viral strain for vaccine development.

§ Attenuate in Academic and Scientific Literature

At the university level, especially in science, engineering, and even social sciences when discussing the impact of factors, "attenuate" is a common and precise term. It allows for a nuanced description of reduction or weakening.

Physics and Engineering
In physics, particularly in optics or acoustics, "attenuation" refers to the gradual loss of intensity of any kind of flux through a medium. For example, sound waves attenuate as they travel through air, and light attenuates as it passes through water. Engineers designing soundproofing or optical fibers constantly work with principles of attenuation.

The thick lead shielding helped to attenuate the radiation.

Environmental Science
Environmental scientists might use "attenuate" to describe how pollutants become less concentrated or harmful over time and distance in natural systems, a process known as natural attenuation. This concept is vital in understanding environmental remediation and risk assessment.

Over time, the contaminated groundwater began to naturally attenuate as it filtered through the soil.

§ Attenuate in News and Public Discourse

While less common in everyday conversation, "attenuate" does appear in news reporting and public discussions when the topic involves scientific or technical subjects. It adds a layer of precision to the reporting.

Health and Public Policy
During discussions about public health crises, you might hear or read about efforts to "attenuate" the spread of a disease, meaning to reduce its rate of transmission or its severity. This often involves measures like social distancing, vaccination campaigns, or improved hygiene.

Public health measures were implemented to attenuate the impact of the epidemic.

Financial News
Occasionally, in financial journalism, "attenuate" might be used to describe actions taken to lessen the severity of an economic downturn or to reduce financial risks. For instance, central banks might introduce policies to attenuate inflation.

Government intervention aimed to attenuate the economic fallout from the global crisis.

In summary, while "attenuate" might not be a daily vocabulary word for everyone, its precise meaning makes it invaluable in technical, scientific, and specialized discourse. Recognizing it in these contexts will significantly enhance your comprehension of complex topics.

§ Similar words and when to use this one vs alternatives

The word "attenuate" describes a reduction in force, effect, or physical thickness, often in scientific or technical contexts. While it shares some semantic territory with other words, its precise meaning and common usage distinguish it. Let's explore some similar words and when to choose "attenuate" over its alternatives.

WEAKEN
This is perhaps the closest synonym to "attenuate" in its general sense. "Weaken" can be used in a broader range of contexts, from physical objects to emotions or arguments. "Attenuate," however, implies a more gradual, often intentional, or naturally occurring reduction, particularly in a measurable way.

The sound waves were attenuated as they passed through the thick wall.

His illness had greatly weakened his immune system.

DILUTE
"Dilute" specifically refers to making a liquid thinner or weaker by adding another liquid, usually water. While it results in a reduced concentration or strength, it's limited to liquid mixtures. "Attenuate" has a broader application, extending to non-liquid phenomena.

The chemist needed to dilute the acid solution before use.

MITIGATE
"Mitigate" means to make something less severe, serious, or painful. It focuses on reducing the negative impact or intensity of something, often a problem or risk. While it involves a reduction, "mitigate" often implies a deliberate action to lessen harm, whereas "attenuate" can describe a natural process or a more general reduction in strength.

The new policy aimed to mitigate the effects of climate change.

DIMINISH
"Diminish" suggests a decrease in size, extent, or importance. It can be used broadly for abstract concepts or physical quantities. While similar to "attenuate" in conveying reduction, "attenuate" often implies a more subtle or gradual thinning or weakening, especially in technical fields.

Over time, their enthusiasm for the project began to diminish.

REDUCE
"Reduce" is a very general term for making something smaller or less in amount, degree, or size. It's a broad umbrella term. "Attenuate" is a more specific way to describe a reduction, particularly when referring to a weakening or thinning of a force, signal, or substance.

The company decided to reduce its workforce by ten percent.

When to use "attenuate" specifically:

  • Scientific and Technical Contexts: "Attenuate" is most at home in fields like physics, biology, medicine, and engineering. It's ideal for describing the weakening of signals (light, sound, radio waves), the reduction in virulence of a pathogen (attenuated vaccine), or the thinning of a material.
  • Gradual or Subtle Reduction: It often implies a more nuanced or less drastic reduction compared to simply "reducing" or "weakening." Think of a gradual decrease in intensity or thickness.
  • Measurable Effects: The term often suggests that the reduction can be quantified or observed scientifically.

In summary, while words like "weaken," "dilute," "mitigate," "diminish," and "reduce" all convey some form of decrease, "attenuate" is preferred when you want to describe a specific reduction in force, effect, or physical thickness, especially within scientific, medical, or engineering discourse. It implies a precise, often measurable, and sometimes gradual process of making something thinner, weaker, or less intense.

按水平分级的例句

1

The new vaccine uses an attenuated virus, making it safe for most patients while still providing immunity.

La nueva vacuna utiliza un virus atenuado, lo que la hace segura para la mayoría de los pacientes al tiempo que proporciona inmunidad.

Here, 'attenuated' modifies 'virus', indicating a weakened form.

2

Due to the thick walls, the sound from the concert was significantly attenuated by the time it reached the adjacent building.

Debido a las paredes gruesas, el sonido del concierto se atenuó significativamente cuando llegó al edificio adyacente.

Used to describe a reduction in sound intensity.

3

The scientist observed that the light intensity attenuated as it passed through the dense liquid.

El científico observó que la intensidad de la luz se atenuaba a medida que pasaba a través del líquido denso.

Describes a decrease in light intensity.

4

Her fever attenuated after taking the medication, bringing her much-needed relief.

Su fiebre se atenuó después de tomar el medicamento, brindándole un alivio muy necesario.

Here, 'attenuated' describes the reduction in the severity of a fever.

5

The engineers designed the material to attenuate the impact of vibrations, protecting the delicate machinery.

Los ingenieros diseñaron el material para atenuar el impacto de las vibraciones, protegiendo la delicada maquinaria.

Used to describe the lessening of the force of vibrations.

6

The effect of the advertising campaign was attenuated by the concurrent negative news coverage.

El efecto de la campaña publicitaria se atenuó por la cobertura de noticias negativas concurrente.

Describes a reduction in the effectiveness or impact of something.

7

In some geological formations, seismic waves can be greatly attenuated, making them harder to detect.

En algunas formaciones geológicas, las ondas sísmicas pueden atenuarse en gran medida, lo que las hace más difíciles de detectar.

Refers to the weakening of seismic waves.

8

The artist used a special technique to attenuate the colors in the background, making the foreground elements stand out more.

El artista utilizó una técnica especial para atenuar los colores del fondo, haciendo que los elementos del primer plano destacaran más.

Describes the reduction in the vividness or intensity of colors.

1

The vaccine uses an attenuated form of the virus to stimulate an immune response without causing the full-blown disease.

Vaccine uses weakened virus.

Here, 'attenuated' modifies 'form', indicating a reduced virulence.

2

Engineers designed a special material to attenuate the sound waves, creating a much quieter environment.

Material weakens sound waves.

'Attenuate' is used as a verb here, but the adjective form 'attenuated' would describe the resulting sound waves.

3

The highly attenuated signal from the distant probe made data recovery challenging for the scientists.

Weakened signal hard to recover.

Describes the 'signal' as having been reduced in strength.

4

In some cases, chronic stress can attenuate the body's natural immune response, making individuals more susceptible to illness.

Stress weakens immune response.

Used to describe the effect of stress on the immune response, implying a reduction in its effectiveness.

5

The artist used a technique that involved applying thin, attenuated layers of paint to achieve a translucent effect.

Thin layers of paint.

Refers to the physical thickness of the paint layers, indicating they are very thin.

6

To protect against radiation, specialized barriers are used to attenuate the harmful rays, reducing their intensity.

Barriers weaken radiation.

Describes the 'rays' as having their intensity reduced by the barriers.

7

The extended period of drought significantly attenuated the flow of the river, impacting local agriculture.

Drought reduced river flow.

Refers to the reduction in the 'flow' of the river due to the drought.

8

Researchers are investigating compounds that can attenuate the severity of allergic reactions by modulating the immune system.

Compounds reduce allergic reactions.

Describes the 'severity' of allergic reactions as being reduced.

近义词

weakened diminished enfeebled rarefied slender tapered

反义词

strengthened intensified amplified

常见搭配

attenuate effect giảm nhẹ ảnh hưởng
attenuate signal tín hiệu suy yếu
attenuate virus vi rút làm suy yếu
attenuate response phản ứng giảm nhẹ
attenuate sound làm giảm âm thanh
attenuate light làm giảm ánh sáng
attenuate symptoms làm giảm triệu chứng
attenuate pain làm giảm đau
attenuate risk làm giảm rủi ro
attenuate vibration làm giảm rung động

常用短语

to attenuate the impact

để giảm thiểu tác động

attenuate the severity of

làm giảm mức độ nghiêm trọng của

attenuate the spread of

làm giảm sự lây lan của

attenuate the immune response

làm giảm phản ứng miễn dịch

attenuate the negative effects

làm giảm các tác động tiêu cực

attenuate the noise level

làm giảm mức độ tiếng ồn

attenuate the signal strength

làm giảm cường độ tín hiệu

attenuate the force of the blow

làm giảm lực của cú đánh

attenuate the intensity of the light

làm giảm cường độ ánh sáng

attenuate the power output

làm giảm công suất đầu ra

习语与表达

"To cut corners"

To do something in the easiest, quickest, or cheapest way, often sacrificing quality.

They cut corners on safety, and it led to serious problems.

informal

"To pare down"

To reduce something in size or quantity, often by removing unnecessary parts.

We need to pare down the budget to make it more manageable.

neutral

"To scale back"

To reduce the size, scope, or extent of something.

Due to budget constraints, they had to scale back the project.

neutral

"To thin out"

To reduce the number or density of something.

The crowd began to thin out after the concert.

neutral

"To water down"

To make something weaker or less effective, often by adding something else.

The proposal was watered down so much that it lost its original impact.

neutral

"To pull punches"

To refrain from using full force or criticism; to be less aggressive or direct than one could be.

The journalist didn't pull any punches in her critique of the government.

informal

"To take the edge off"

To lessen the intensity or severity of something, such as pain, hunger, or stress.

A warm bath can help take the edge off a stressful day.

neutral

"To dilute the effect"

To make an effect weaker or less concentrated.

Spreading their resources too thinly will only dilute the effect of their efforts.

formal

"To mitigate the impact"

To make the effect of something less severe, serious, or painful.

They implemented measures to mitigate the environmental impact of the new factory.

formal

"To whittle down"

To gradually reduce the size or amount of something.

We need to whittle down the list of candidates to a more manageable number.

neutral

如何使用

When using "attenuate," remember that it primarily functions as a verb, meaning 'to reduce the effect, force, or value of.' As an adjective, "attenuated" is the more common and grammatically correct form to describe something that *has been* reduced. For example, you would say "an attenuated signal" rather than "an attenuate signal."

常见错误

A common mistake is using "attenuate" directly as an adjective instead of its past participle form, "attenuated." For instance, instead of saying, "The sound was attenuate," the correct usage is, "The sound was attenuated." Another mistake is confusing it with "extenuate," which means to make something seem less serious or more excusable.

小贴士

Contextual Learning

Always learn words in context. For 'attenuate', think of phrases like 'attenuated signal' or 'attenuated virus'.

Etymology Check

Understanding the origin of 'attenuate' (from Latin 'ad' + 'tenuare' meaning 'to make thin') can help you remember its core meaning of reduction.

Visual Association

Imagine something becoming thinner or weaker. For 'attenuate', visualize a strong rope slowly fraying and thinning out.

Synonyms & Antonyms

Connect 'attenuate' with synonyms like 'weaken', 'reduce', 'diminish' and antonyms like 'strengthen', 'intensify', 'amplify'.

Sentence Construction

Practice using 'attenuate' in your own sentences. For example, 'The vaccine uses an attenuated form of the virus.'

Technical Fields

Be aware that 'attenuate' is frequently used in scientific and technical contexts (e.g., physics, biology, engineering). This will help you recognize its usage.

Spaced Repetition

Use flashcards or a spaced repetition app to revisit 'attenuate' over time, strengthening your memory of it.

Pronunciation Practice

Say 'attenuate' aloud multiple times to get comfortable with its pronunciation. Focus on the stress: 'a-TTEN-u-ate'.

Real-world Examples

Look for 'attenuate' in news articles, scientific papers, or documentaries to see how it's used in natural language.

Word Families

Explore other forms of the word, such as the noun 'attenuation' or the verb 'to attenuate', to build a complete word family.

在生活中练习

真实语境

Medical/Biology

  • attenuated virus (e.g., in vaccines)
  • attenuated immune response
  • attenuated symptoms

Physics/Engineering

  • attenuated signal (e.g., radio waves, sound waves)
  • attenuated light
  • attenuate the impact/force

Ecology/Environment

  • attenuated rainfall
  • attenuate the effects of pollution
  • attenuated growth

Social Sciences/Humanities

  • attenuated cultural traditions
  • attenuated social influence
  • attenuated public interest

General/Figurative

  • attenuated enthusiasm
  • attenuated criticism
  • attenuate the noise

对话开场白

"In what fields have you encountered the term 'attenuated' most frequently, and how was it used?"

"Can you think of a recent news story or scientific discovery where the concept of 'attenuation' was important?"

"How might 'attenuating' something in one area inadvertently strengthen something else?"

"What are some real-world examples of 'attenuated' signals or forces that we might not even notice?"

"Beyond its literal meaning, how can the idea of 'attenuating' something be applied to abstract concepts like emotions or ideas?"

日记主题

Reflect on a time you experienced something that was 'attenuated' – perhaps a feeling, an expectation, or an experience. Describe the original state and how it became attenuated.

Consider a challenge you're currently facing. How might you 'attenuate' its negative effects or 'attenuate' the impact of certain obstacles?

Write about a fictional scenario where a key element is 'attenuated', and explore the consequences of this reduction. What new challenges or opportunities arise?

Think about the role of 'attenuation' in art, music, or literature. How do creators 'attenuate' certain elements to achieve a desired effect or message?

Imagine a world where 'attenuation' was not possible. What would be the most significant differences or challenges in such a world?

常见问题

10 个问题

Certainly! You might hear it in sentences like, 'The vaccine uses an attenuated virus to stimulate an immune response,' or 'The thick fog attenuated the light from the streetlamps.' In a more technical context, 'The signal was attenuated as it traveled through the long cable.'

That's a great question! While 'attenuate' and 'weaken' are often used similarly, 'attenuate' specifically implies a reduction in force, effect, or physical thickness, often gradually or as part of a process. 'Weaken' is a more general term for becoming less strong. So, all attenuation is weakening, but not all weakening is attenuation. 'Attenuate' also has a more formal or scientific connotation.

Yes, there are! Some common synonyms include 'weaken,' 'reduce,' 'diminish,' 'lessen,' and 'thin.' However, remember that 'attenuate' carries that specific nuance of reduction in force, effect, or thickness, especially in scientific or technical fields.

Not as common as 'weaken' or 'reduce.' You're more likely to encounter 'attenuate' in academic papers, scientific journals, or technical discussions. It's a C1 level word, which means it's part of a more advanced vocabulary.

It's very relevant to both! When sound or light travels through a medium, its intensity can be attenuated, meaning it loses energy and becomes weaker. For example, thick walls can attenuate sound, and sunglasses attenuate bright light.

While 'attenuate' primarily describes physical or abstract forces, you could theoretically use it metaphorically to describe a reduction in the intensity of an emotion, though it's not a common usage. For example, one might say 'time attenuated his grief,' but it would sound quite formal and perhaps a little unusual. 'Lessen' or 'diminish' would be more natural in such a context.

That's an interesting one! 'Attenuate' comes from the Latin word 'attenuatus,' which means 'made thin' or 'weakened.' This etymology really aligns with its core meaning of reducing thickness or strength.

Yes, you could say the opposite of 'attenuate' would be to strengthen, intensify, or amplify. For example, an amplifier works to amplify a signal, which is the reverse of attenuating it.

You got it! 'Attenuate' is the verb form, meaning 'to reduce' or 'to weaken.' For instance, 'We need to attenuate the signal.' 'Attenuated' is the adjective form, describing something that has already undergone that reduction, as in 'The attenuated virus was used in the vaccine.'

Of course! Think about something that gets thinner or less dense. For instance, if you have a thick liquid and you dilute it, you are attenuating its physical thickness or concentration. Another example is how some materials can attenuate radiation, meaning they reduce its intensity as it passes through, essentially making its 'thickness' of effect less potent.

自我测试 126 个问题

multiple choice A1

The loud music did not _____ the baby's sleep.

正确! 不太对。 正确答案: weaken

'Attenuate' means to weaken or reduce. The music did not weaken the baby's sleep.

multiple choice A1

When you _____ a sound, you make it quieter.

正确! 不太对。 正确答案: attenuate

To attenuate a sound means to make it less strong or quieter.

multiple choice A1

The thick curtains help to _____ the sunlight in the room.

正确! 不太对。 正确答案: attenuate

The curtains make the sunlight less strong, or attenuate it.

true false A1

To attenuate something means to make it stronger.

正确! 不太对。 正确答案: 错误

Attenuate means to make something weaker, not stronger.

true false A1

If you attenuate a sound, it gets louder.

正确! 不太对。 正确答案: 错误

Attenuating a sound makes it quieter, not louder.

true false A1

A shield can attenuate the impact of a hit.

正确! 不太对。 正确答案: 正确

A shield can make the impact of a hit weaker, or attenuate it.

listening A1

Think about what 'soft' means for sound.

正确! 不太对。 正确答案: The sound is soft.
正确! 不太对。 正确答案:
listening A1

How does dim light look?

正确! 不太对。 正确答案: The light is dim.
正确! 不太对。 正确答案:
listening A1

What does 'quiet' mean for a voice?

正确! 不太对。 正确答案: My voice is quiet.
正确! 不太对。 正确答案:
speaking A1

Read this aloud:

I am small.

Focus: small

正确! 不太对。 正确答案:
speaking A1

Read this aloud:

The music is low.

Focus: low

正确! 不太对。 正确答案:
speaking A1

Read this aloud:

It is not strong.

Focus: strong

正确! 不太对。 正确答案:
writing A1

Write a sentence about something getting smaller or weaker.

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

Sample answer

The music became very small.

正确! 不太对。 正确答案:
writing A1

Imagine you have a big light. How can you make it less bright? Write one sentence.

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

Sample answer

I can make the light less bright.

正确! 不太对。 正确答案:
writing A1

Think about a loud noise. Write a sentence about making it quiet.

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

Sample answer

I make the loud noise quiet.

正确! 不太对。 正确答案:
reading A1

What can make the sun's heat feel less strong?

Read this passage:

The sun is very hot in summer. Sometimes, we want the sun to be less hot. We can use an umbrella to make the sun's heat feel less strong. This makes us feel more comfortable.

What can make the sun's heat feel less strong?

正确! 不太对。 正确答案: An umbrella

The passage states, 'We can use an umbrella to make the sun's heat feel less strong.'

正确! 不太对。 正确答案: An umbrella

The passage states, 'We can use an umbrella to make the sun's heat feel less strong.'

reading A1

What happens to the toy mouse after the cat plays a lot?

Read this passage:

My cat likes to play with a small toy mouse. When the cat plays a lot, the toy mouse can get broken. Then, the toy mouse becomes weaker and smaller.

What happens to the toy mouse after the cat plays a lot?

正确! 不太对。 正确答案: It becomes weaker

The passage says, 'Then, the toy mouse becomes weaker and smaller.'

正确! 不太对。 正确答案: It becomes weaker

The passage says, 'Then, the toy mouse becomes weaker and smaller.'

reading A1

What can make a baby's cry softer?

Read this passage:

A baby's cry can be very loud. Sometimes, a parent wants to make the cry less loud. They can gently rock the baby to make the cry softer.

What can make a baby's cry softer?

正确! 不太对。 正确答案: Rocking the baby

The passage states, 'They can gently rock the baby to make the cry softer.'

正确! 不太对。 正确答案: Rocking the baby

The passage states, 'They can gently rock the baby to make the cry softer.'

fill blank A2

The thick curtains help to ___ the bright sunlight.

正确! 不太对。 正确答案: attenuate

To 'attenuate' means to reduce in force or effect. In this case, the curtains reduce the sunlight.

fill blank A2

We need to ___ the sound so it's not too loud for the baby.

正确! 不太对。 正确答案: attenuate

To 'attenuate' means to make something weaker or less intense. Here, it means to make the sound quieter.

fill blank A2

The scientist tried to ___ the virus so it would not be so dangerous.

正确! 不太对。 正确答案: attenuate

To 'attenuate' a virus means to weaken it, making it less harmful.

fill blank A2

To make the light softer, you can ___ it with a lamp shade.

正确! 不太对。 正确答案: attenuate

A lampshade reduces the intensity of light, which means it 'attenuates' it.

fill blank A2

The old radio could not ___ the distant signal very well.

正确! 不太对。 正确答案: attenuate

In this context, if the radio could not 'attenuate' the signal, it means it couldn't reduce its weakness or interference, suggesting a lack of ability to strengthen it or process it clearly. However, if the question meant 'to make clear' it would be a different word. Given the definition, 'attenuate' means to reduce in force, implying the radio might reduce the signal further, making it less clear. Let's re-evaluate. A better option would be something like 'strengthen' or 'boost'. But since 'attenuate' is the word to be used, the sentence needs to imply reduction. Let's rephrase the question to fit the definition better. Revised: 'The thick walls helped to ___ the noise from outside.'

fill blank A2

The thick walls helped to ___ the noise from outside.

正确! 不太对。 正确答案: attenuate

The thick walls reduce the force or effect of the noise, which means they 'attenuate' it.

multiple choice A2

The loud music started to ___ as we walked away.

正确! 不太对。 正确答案: get softer

To 'attenuate' means to reduce in force or effect, so the music would get softer.

multiple choice A2

If you want to ___ the light, you can close the curtains a little.

正确! 不太对。 正确答案: make darker

Closing curtains would reduce the amount of light, making it darker, which is to attenuate it.

multiple choice A2

The doctor tried to ___ the effects of the cold medicine on the patient.

正确! 不太对。 正确答案: reduce

To 'attenuate' means to make less, so the doctor would try to reduce the effects.

true false A2

When something attenuates, it becomes stronger.

正确! 不太对。 正确答案: 错误

To attenuate means to reduce in force or effect, so it becomes weaker, not stronger.

true false A2

A thick blanket can attenuate the sound from outside.

正确! 不太对。 正确答案: 正确

A thick blanket can absorb sound, reducing its force or effect, which is to attenuate it.

true false A2

If you attenuate a light, it becomes brighter.

正确! 不太对。 正确答案: 错误

To attenuate a light means to make it less bright, or darker.

writing A2

Imagine you have a loud sound. What can you do to make it quieter? Write one sentence about how you can make a sound less strong.

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

Sample answer

I can put a blanket over the speaker to make the sound quieter.

正确! 不太对。 正确答案:
writing A2

Think about a light that is too bright. What can you do to make it softer or less intense? Write one sentence.

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

Sample answer

I can close the curtains to make the light softer.

正确! 不太对。 正确答案:
writing A2

Sometimes, a cold can make you feel very sick. What can medicine do to make the cold's effects less strong? Write one sentence.

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

Sample answer

Medicine can make the effects of a cold less strong, so I feel better.

正确! 不太对。 正确答案:
reading A2

What did the medicine do to the cold's effects?

Read this passage:

My little brother has a cold. He feels very tired and has a runny nose. The doctor gave him some medicine. After he took the medicine, he started to feel a little better. The medicine helped to make the bad feelings of the cold less strong.

What did the medicine do to the cold's effects?

正确! 不太对。 正确答案: It made them less strong.

The passage states, 'The medicine helped to make the bad feelings of the cold less strong.'

正确! 不太对。 正确答案: It made them less strong.

The passage states, 'The medicine helped to make the bad feelings of the cold less strong.'

reading A2

What happens to the sound of the rain when you close your windows?

Read this passage:

Sometimes, when it rains very hard, the sound can be very loud. If you close your windows, the sound of the rain becomes quieter. Closing the windows helps to make the loud sound of the rain less strong inside your house.

What happens to the sound of the rain when you close your windows?

正确! 不太对。 正确答案: It becomes quieter.

The passage says, 'If you close your windows, the sound of the rain becomes quieter.'

正确! 不太对。 正确答案: It becomes quieter.

The passage says, 'If you close your windows, the sound of the rain becomes quieter.'

reading A2

What do the special glasses do for the sunlight?

Read this passage:

My grandmother wears special glasses. These glasses help to make the bright sunlight less strong for her eyes. So, she can see more comfortably when it is sunny outside.

What do the special glasses do for the sunlight?

正确! 不太对。 正确答案: They make it less strong.

The passage states, 'These glasses help to make the bright sunlight less strong for her eyes.'

正确! 不太对。 正确答案: They make it less strong.

The passage states, 'These glasses help to make the bright sunlight less strong for her eyes.'

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 light became dim.

This sentence describes how the light reduced in strength.

sentence order A2

点击下方的词语来组成句子
正确! 不太对。 正确答案: Her voice grew soft.

This sentence describes how her voice reduced in volume.

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 sound was faint.

This sentence describes how the sound reduced in intensity.

listening B1

Listen for how the vaccine changes the virus's effects.

正确! 不太对。 正确答案: The doctor explained that the new vaccine helps to attenuate the effects of the virus.
正确! 不太对。 正确答案:
listening B1

Consider what 'attenuate' means in the context of noise.

正确! 不太对。 正确答案: To improve the signal, we need to find a way to attenuate the noise in the background.
正确! 不太对。 正确答案:
listening B1

Think about how curtains can affect sunlight.

正确! 不太对。 正确答案: The thick curtains helped to attenuate the bright sunlight coming into the room.
正确! 不太对。 正确答案:
speaking B1

Read this aloud:

Can you give an example of something that can attenuate sound?

Focus: attenuate

正确! 不太对。 正确答案:
speaking B1

Read this aloud:

Describe a situation where a feeling or emotion might be attenuated.

Focus: attenuated

正确! 不太对。 正确答案:
speaking B1

Read this aloud:

What can people do to attenuate the impact of a natural disaster?

Focus: impact

正确! 不太对。 正确答案:
writing B1

Imagine you are describing a weakened signal from a radio. Use the word 'attenuate' in your description.

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

Sample answer

The radio signal started to attenuate as I drove further away from the city, making it difficult to hear the music clearly.

正确! 不太对。 正确答案:
writing B1

Write a sentence about how a vaccine works to 'attenuate' a virus. Focus on making the sentence easy to understand.

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

Sample answer

A vaccine can attenuate a virus, making it weaker so your body can fight it off without getting very sick.

正确! 不太对。 正确答案:
writing B1

Describe a time when something's effect was 'attenuated'. It could be a sound, a light, or a feeling.

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

Sample answer

The loud music from the party next door was attenuated by the thick walls, so I could still sleep peacefully.

正确! 不太对。 正确答案:
reading B1

What is the main idea of the passage?

Read this passage:

In some scientific experiments, researchers need to use a weakened form of a chemical or a substance. This is done to observe its effects without causing severe damage. When a substance is treated this way, its power or intensity is significantly reduced. This process allows for safer study.

What is the main idea of the passage?

正确! 不太对。 正确答案: Weakened substances are used for safer experiments.

The passage explains that researchers use 'weakened form of a chemical' to 'observe its effects without causing severe damage,' indicating safer experiments.

正确! 不太对。 正确答案: Weakened substances are used for safer experiments.

The passage explains that researchers use 'weakened form of a chemical' to 'observe its effects without causing severe damage,' indicating safer experiments.

reading B1

What happens when fabrics attenuate the sun's rays?

Read this passage:

To protect against strong sunlight, some fabrics are designed to attenuate the sun's rays. This means they reduce the intensity of the light that passes through them, helping to keep you cool and safe from sunburn. These special fabrics are often used in outdoor clothing and umbrellas.

What happens when fabrics attenuate the sun's rays?

正确! 不太对。 正确答案: They reduce the intensity of the sunlight.

The passage explicitly states, 'This means they reduce the intensity of the light that passes through them.'

正确! 不太对。 正确答案: They reduce the intensity of the sunlight.

The passage explicitly states, 'This means they reduce the intensity of the light that passes through them.'

reading B1

What is a likely result if a Wi-Fi signal starts to attenuate?

Read this passage:

When you are far from a Wi-Fi router, the signal often starts to attenuate. This means the internet connection becomes weaker, and websites might load slowly or not at all. Moving closer to the router can help to improve the signal strength.

What is a likely result if a Wi-Fi signal starts to attenuate?

正确! 不太对。 正确答案: Websites might load slowly.

The passage states, 'This means the internet connection becomes weaker, and websites might load slowly or not at all.'

正确! 不太对。 正确答案: Websites might load slowly.

The passage states, 'This means the internet connection becomes weaker, and websites might load slowly or not at all.'

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 signal was attenuated by distance.

This sentence describes how a signal's strength was reduced due to distance.

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 medicine can attenuate the effect of your cold.

This sentence means the medicine can lessen the strength of your cold.

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 strong sun light was attenuated by the curtains.

This sentence indicates that the curtains reduced the intensity of the sunlight.

fill blank B2

The new vaccine uses an ___ form of the virus to stimulate the immune system without causing serious illness.

正确! 不太对。 正确答案: attenuated

The word 'attenuated' means weakened or reduced in force, which fits the context of a vaccine that uses a less harmful form of a virus.

fill blank B2

Engineers worked to ___ the vibrations in the bridge to ensure its structural integrity during strong winds.

正确! 不太对。 正确答案: attenuate

'Attenuate' means to reduce the force, effect, or value of something. In this context, it refers to reducing vibrations.

fill blank B2

The thick fog helped to ___ the sound of the city traffic, creating a strangely quiet atmosphere.

正确! 不太对。 正确答案: attenuate

In this sentence, 'attenuate' means to reduce the sound, making the traffic quieter.

fill blank B2

To get a clearer signal, we needed to ___ the interference from other electronic devices.

正确! 不太对。 正确答案: attenuate

To 'attenuate' interference means to reduce its effect, allowing for a clearer signal.

fill blank B2

The medication is designed to ___ the symptoms of the allergic reaction, making them less severe.

正确! 不太对。 正确答案: attenuated

To 'attenuate' symptoms means to make them less severe or less intense.

fill blank B2

The artist used lighter shades to ___ the harshness of the bright colors, creating a softer overall impression.

正确! 不太对。 正确答案: attenuate

Here, 'attenuate' refers to reducing the harshness or intensity of the colors.

multiple choice B2

The thick fog helped to ___ the sound of the traffic.

正确! 不太对。 正确答案: attenuate

To attenuate means to reduce in force or effect. In this context, the fog reduces the sound.

multiple choice B2

Scientists are working on ways to ___ the harmful effects of air pollution.

正确! 不太对。 正确答案: attenuate

To attenuate harmful effects means to lessen or reduce them.

multiple choice B2

Which of the following would be an example of something that has been attenuated?

正确! 不太对。 正确答案: A loud noise made quieter by distance.

Attenuation involves a reduction in force or effect, like a sound becoming quieter with distance.

true false B2

If a vaccine contains an attenuated virus, it means the virus has been made stronger.

正确! 不太对。 正确答案: 错误

An attenuated virus is one that has been weakened, not strengthened, to safely stimulate an immune response.

true false B2

Using earplugs can help to attenuate loud sounds.

正确! 不太对。 正确答案: 正确

Earplugs reduce the intensity of sounds, which is an example of attenuation.

true false B2

A mountain range can attenuate radio signals.

正确! 不太对。 正确答案: 正确

Physical barriers like mountains can reduce the strength or effect of radio signals, thus attenuating them.

listening B2

Listen for how the engineers tried to reduce something.

正确! 不太对。 正确答案: The engineers worked to attenuate the noise levels in the factory.
正确! 不太对。 正确答案:
listening B2

Think about what kind of virus would be used in a vaccine.

正确! 不太对。 正确答案: The vaccine uses an attenuated virus to stimulate an immune response.
正确! 不太对。 正确答案:
listening B2

Consider how curtains might affect the sunlight.

正确! 不太对。 正确答案: Heavy curtains can help attenuate the harsh sunlight entering the room.
正确! 不太对。 正确答案:
speaking B2

Read this aloud:

Can you explain how a soundproof wall works to attenuate noise?

Focus: attenuate

正确! 不太对。 正确答案:
speaking B2

Read this aloud:

Describe a situation where you might want to attenuate a strong emotional reaction.

Focus: attenuate

正确! 不太对。 正确答案:
speaking B2

Read this aloud:

What technological advancements help to attenuate signals over long distances?

Focus: attenuate

正确! 不太对。 正确答案:
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 signal was attenuated by the long distance.

This sentence describes how a signal's strength was reduced due to distance.

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 sunlight was attenuated by the clouds.

This sentence explains how clouds lessened the intensity of sunlight.

sentence order B2

点击下方的词语来组成句子
正确! 不太对。 正确答案: An attenuated virus vaccine was developed to developed immunity.

This sentence refers to a weakened virus being used in a vaccine to build immunity.

listening C1

Listen for the word that means 'to reduce in force'.

正确! 不太对。 正确答案: The engineer explained how they would attenuate the signal to prevent interference.
正确! 不太对。 正确答案:
listening C1

Focus on the word describing the modified virus.

正确! 不太对。 正确答案: Vaccines use an attenuated form of the virus to stimulate immunity.
正确! 不太对。 正确答案:
listening C1

What do the walls do to the noise?

正确! 不太对。 正确答案: The thick walls of the sound studio help to attenuate external noise.
正确! 不太对。 正确答案:
speaking C1

Read this aloud:

Can you explain how certain materials can attenuate sound waves?

Focus: attenuate

正确! 不太对。 正确答案:
speaking C1

Read this aloud:

Describe a situation where it would be beneficial to attenuate a strong effect or signal.

Focus: attenuate

正确! 不太对。 正确答案:
speaking C1

Read this aloud:

Discuss the implications of using an attenuated virus in vaccine development.

Focus: attenuated

正确! 不太对。 正确答案:
writing C1

Imagine you are a scientist explaining how a new vaccine works. Write a short paragraph (3-4 sentences) describing how the vaccine might use an 'attenuated' form of a virus to create immunity.

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

Sample answer

Our novel vaccine leverages an attenuated form of the virus. By weakening the pathogen, it stimulates the immune system without causing severe illness, thereby allowing the body to develop robust immunity. This controlled exposure ensures the patient builds defenses safely and effectively.

正确! 不太对。 正确答案:
writing C1

Describe a situation in which a sound or light signal might need to be 'attenuated' for a specific purpose. Explain the purpose and how the attenuation is achieved in 3-4 sentences.

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

Sample answer

In a recording studio, engineers often need to attenuate loud incoming audio signals to prevent distortion and protect equipment. This is typically achieved through the use of attenuator pads or by lowering the gain on the mixing console. The purpose is to ensure a clean, manageable signal for optimal recording quality.

正确! 不太对。 正确答案:
writing C1

Consider a public health campaign aimed at reducing the spread of a disease. Write a short explanation (3-4 sentences) about how the campaign might aim to 'attenuate' the impact of the disease on the community.

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

Sample answer

A public health campaign might seek to attenuate the disease's impact by promoting widespread vaccination and encouraging social distancing. These measures collectively work to reduce the virus's transmission rate and severity of symptoms in infected individuals. Ultimately, the goal is to lessen the overall burden on healthcare systems and protect vulnerable populations.

正确! 不太对。 正确答案:
reading C1

According to the passage, what is the primary reason for signal attenuation in telecommunications?

Read this passage:

In the realm of telecommunications, signal attenuation is a critical factor engineers must consider. As an electrical signal travels through a cable or wireless medium, its strength gradually diminishes due to various physical phenomena, such as resistance and absorption. To maintain signal integrity over long distances, repeaters or amplifiers are often employed to boost the attenuated signal back to its original strength.

According to the passage, what is the primary reason for signal attenuation in telecommunications?

正确! 不太对。 正确答案: Physical phenomena like resistance and absorption

The passage explicitly states that signal strength diminishes due to 'various physical phenomena, such as resistance and absorption.'

正确! 不太对。 正确答案: Physical phenomena like resistance and absorption

The passage explicitly states that signal strength diminishes due to 'various physical phenomena, such as resistance and absorption.'

reading C1

What is the key characteristic of an attenuated vaccine, as described in the passage?

Read this passage:

Modern medicine has greatly benefited from the development of attenuated vaccines. These vaccines contain a weakened, or attenuated, form of the pathogen that can still provoke an immune response without causing severe disease. This approach allows the body to develop immunity safely and effectively, providing long-lasting protection against future infections.

What is the key characteristic of an attenuated vaccine, as described in the passage?

正确! 不太对。 正确答案: It contains a weakened form of the pathogen that stimulates immunity without severe disease.

The passage states, 'These vaccines contain a weakened, or attenuated, form of the pathogen that can still provoke an immune response without causing severe disease.'

正确! 不太对。 正确答案: It contains a weakened form of the pathogen that stimulates immunity without severe disease.

The passage states, 'These vaccines contain a weakened, or attenuated, form of the pathogen that can still provoke an immune response without causing severe disease.'

reading C1

Which of the following is NOT given as a reason for the attenuation of starlight in the passage?

Read this passage:

The light from distant stars often appears attenuated when observed from Earth. This dimming can be attributed to several factors, including interstellar dust and gas clouds that absorb and scatter photons. Furthermore, the immense distances involved mean that the light energy spreads out over a vast area, reducing its intensity by the time it reaches our telescopes.

Which of the following is NOT given as a reason for the attenuation of starlight in the passage?

正确! 不太对。 正确答案: The chemical composition of the star

The passage mentions interstellar dust, gas clouds, and immense distances as reasons for attenuation, but does not refer to the chemical composition of the star.

正确! 不太对。 正确答案: The chemical composition of the star

The passage mentions interstellar dust, gas clouds, and immense distances as reasons for attenuation, but does not refer to the chemical composition of the star.

sentence order C1

点击下方的词语来组成句子
正确! 不太对。 正确答案: The virus was attenuated to create a vaccine.

This sentence describes how a virus can be weakened or 'attenuated' for vaccine development, which is a common scientific application of the word.

sentence order C1

点击下方的词语来组成句子
正确! 不太对。 正确答案: The radio signal became attenuated as it traveled through the mountains.

This sentence illustrates the use of 'attenuated' in the context of a weakened signal, which is a common technical application.

sentence order C1

点击下方的词语来组成句子
正确! 不太对。 正确答案: The researchers observed an attenuated immune response in the treated group.

This sentence uses 'attenuated' to describe a reduced or weakened immune response, fitting the scientific and medical context.

multiple choice C2

Which of the following scenarios best exemplifies the concept of an attenuated signal?

正确! 不太对。 正确答案: A radio wave that becomes weaker as it travels further from the transmitter.

An attenuated signal refers to a signal that has been reduced in force or effect, which is precisely what happens to a radio wave as it propagates over distance.

multiple choice C2

In a medical context, what would an 'attenuated virus' most likely be used for?

正确! 不太对。 正确答案: To develop a vaccine that stimulates immunity without causing severe illness.

An attenuated virus is weakened, meaning it can provoke an immune response without causing the full severity of the disease, making it ideal for vaccine development.

multiple choice C2

Which sentence correctly uses 'attenuated' in a technical sense?

正确! 不太对。 正确答案: The engineers worked to attenuate the noise pollution from the factory.

In this context, 'attenuate' means to reduce the force or effect of something, which applies perfectly to reducing noise pollution.

true false C2

An attenuated sound wave would be louder than its original intensity.

正确! 不太对。 正确答案: 错误

An attenuated sound wave has been reduced in force or effect, meaning it would be quieter, not louder, than its original intensity.

true false C2

A material described as 'attenuated' due to its physical thickness would be thicker than usual.

正确! 不太对。 正确答案: 错误

If a material is attenuated in physical thickness, it means it has been reduced, implying it would be thinner than usual, not thicker.

true false C2

In spectroscopy, an attenuated light beam indicates that some of its intensity has been absorbed or scattered.

正确! 不太对。 正确答案: 正确

When a light beam is attenuated in spectroscopy, it means its intensity has been reduced due to interaction with the sample, such as absorption or scattering.

listening C2

Listen for how the new material affects the vibrations.

正确! 不太对。 正确答案: The engineer explained that the new material would attenuate the vibrations, making the structure more stable.
正确! 不太对。 正确答案:
listening C2

What kind of virus is in the vaccine?

正确! 不太对。 正确答案: The vaccine contains an attenuated form of the virus, which helps the body build immunity without causing the full-blown illness.
正确! 不太对。 正确答案:
listening C2

What happened to the radio signal during the storm?

正确! 不太对。 正确答案: Due to the storm, the radio signal became significantly attenuated, making it difficult to hear the broadcast clearly.
正确! 不太对。 正确答案:
speaking C2

Read this aloud:

Can you explain how light can be attenuated as it passes through different mediums?

Focus: attenuated

正确! 不太对。 正确答案:
speaking C2

Read this aloud:

Describe a situation where a sound wave might become attenuated, and what the practical implications of this might be.

Focus: implications

正确! 不太对。 正确答案:
speaking C2

Read this aloud:

Discuss the ethical considerations of using attenuated viruses in medical treatments, especially concerning potential risks and benefits.

Focus: ethical, considerations

正确! 不太对。 正确答案:
writing C2

Explain how scientists might "attenuate" a virus for vaccine development. What are the benefits and risks of this process?

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

Sample answer

Scientists attenuate a virus by weakening its pathogenicity, often through serial passaging in non-human cells or by genetic modification, so it can still replicate but no longer cause severe disease. This allows the body to mount an immune response without significant risk of illness, forming the basis of live-attenuated vaccines. Benefits include strong, long-lasting immunity, but risks can involve the potential for the attenuated virus to revert to a virulent form or cause mild symptoms in immunocompromised individuals.

正确! 不太对。 正确答案:
writing C2

Discuss the ethical considerations involved when a government proposes to "attenuate" civil liberties during a national emergency. Use specific examples to illustrate your points.

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

Sample answer

When a government proposes to attenuate civil liberties during a national emergency, significant ethical considerations arise. While measures like increased surveillance or restrictions on assembly might be argued as necessary for public safety, they must be proportionate to the threat. For instance, blanket surveillance without due process or prolonged lockdowns that severely impact economic and social freedoms could set dangerous precedents and erode democratic principles in the long term. Balancing collective security with individual rights is a complex ethical tightrope.

正确! 不太对。 正确答案:
writing C2

Imagine you are an engineer designing a soundproof room. Describe how you would "attenuate" external noise using various materials and structural designs.

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

Sample answer

To attenuate external noise in a soundproof room, I would employ a multi-layered approach. High-density materials like concrete or specialized soundproof drywall would be used for mass to block sound transmission. Gaps between layers, or "decoupling," would further reduce vibration transfer. Acoustic absorption panels made of porous materials like mineral wool or foam would be strategically placed to dampen reflections and reduce reverberation within the room. Sealing all gaps around doors and windows with acoustic seals would also be crucial to prevent sound leakage.

正确! 不太对。 正确答案:
reading C2

According to the passage, what primarily causes the attenuation of light from distant galaxies?

Read this passage:

In the realm of astrophysics, the vast distances traversed by light can lead to its attenuation. Interstellar dust and gas clouds, though seemingly sparse, can absorb and scatter photons, thereby reducing the intensity of light reaching Earth. This phenomenon is particularly critical when observing distant galaxies, as it can skew measurements of their intrinsic brightness and, consequently, their distance and age.

According to the passage, what primarily causes the attenuation of light from distant galaxies?

正确! 不太对。 正确答案: The absorption and scattering by interstellar dust and gas.

The passage explicitly states that 'Interstellar dust and gas clouds... can absorb and scatter photons, thereby reducing the intensity of light reaching Earth,' which is the definition of attenuation in this context.

正确! 不太对。 正确答案: The absorption and scattering by interstellar dust and gas.

The passage explicitly states that 'Interstellar dust and gas clouds... can absorb and scatter photons, thereby reducing the intensity of light reaching Earth,' which is the definition of attenuation in this context.

reading C2

What is the main consequence of improper storage on medication effectiveness?

Read this passage:

The effectiveness of certain medications can be significantly attenuated if they are not stored correctly. Exposure to high temperatures or direct sunlight can degrade the active compounds, rendering the drug less potent or even inert. Pharmaceutical guidelines emphasize the importance of maintaining specified storage conditions to ensure the medication retains its intended therapeutic effect.

What is the main consequence of improper storage on medication effectiveness?

正确! 不太对。 正确答案: It attenuates the drug's effectiveness.

The passage states that improper storage can 'degrade the active compounds, rendering the drug less potent or even inert,' which means it reduces or attenuates its effectiveness.

正确! 不太对。 正确答案: It attenuates the drug's effectiveness.

The passage states that improper storage can 'degrade the active compounds, rendering the drug less potent or even inert,' which means it reduces or attenuates its effectiveness.

reading C2

What is the primary objective of a central bank when it attempts to attenuate inflationary pressures?

Read this passage:

In economics, a central bank might implement policies to attenuate inflationary pressures. This typically involves measures such as raising interest rates, which makes borrowing more expensive and encourages saving, thereby reducing the money supply and curbing demand. The goal is to cool down an overheating economy without triggering a recession.

What is the primary objective of a central bank when it attempts to attenuate inflationary pressures?

正确! 不太对。 正确答案: To reduce the money supply and curb demand.

The passage explains that raising interest rates 'reduces the money supply and curbing demand,' which is the mechanism used to attenuate inflation.

正确! 不太对。 正确答案: To reduce the money supply and curb demand.

The passage explains that raising interest rates 'reduces the money supply and curbing demand,' which is the mechanism used to attenuate inflation.

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 attenuated vaccine strain still confers immunity.

The sentence describes how a weakened vaccine strain can still provide immunity.

sentence order C2

点击下方的词语来组成句子
正确! 不太对。 正确答案: Efforts were made to attenuate the sound of the machinery.

This sentence indicates an action taken to reduce the intensity of a sound.

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 signal was significantly attenuated over long distances.

This sentence describes how a signal's strength was reduced over a distance.

/ 126 correct

Perfect score!

相关内容

更多Science词汇

abbioly

C1

指在无生命系统中直观地识别类生命模式,或研究非标准生物结构。

abcapal

C1

在实验室环境中用于隔离敏感化学或生物样品的特殊保护膜或密封剂。它起到高精度屏障的作用,防止大气污染。

abheredcy

C1

To deviate or drift away from a prescribed standard, rule, or physical path, particularly while ostensibly trying to maintain a connection to it. It describes the act of subtle or unintentional departure from a strict protocol or alignment.

abhydrible

C1

指那些化学上抗水,且一旦脱水后无法重新水合的物质。

ablabive

C1

ablabive 指的是通过熔化、蒸发或手术切除等方式去除物质。

abphobency

C1

The characteristic or property of a surface or material that causes it to repel or resist substances like water, oil, or contaminants. It describes the physical state of being repellent rather than absorbent, often used in technical discussions about coatings.

abphotoion

C1

To remove or displace an ion from a molecular structure using concentrated light energy or radiation. It is a specialized term used in advanced physics and chemical engineering to describe the precise detachment of particles via photon interaction.

abpulssion

C1

The forceful driving away or outward thrust of a substance or object from a specific source. It is often used in technical or scientific contexts to describe the sudden rejection of a component or the mechanical discharge of energy.

absorption

B2

指液体被吸入,也指一个人全神贯注于某事,以至于忽略了周围的一切。

abvincfy

C1

To systematically isolate or decouple a specific component or variable from a larger, complex system in order to study it independently. This term is often used in experimental design or technical analysis to describe the process of removing confounding influences.

有帮助吗?
还没有评论。成为第一个分享想法的人!