Imagine a very thin string. That's like a fiber!
You can find these tiny strings in plants, like in your vegetables and fruits. They help your body digest food well.
Fibers are also used to make clothes, like a thread that makes your shirt.
So, fiber can be a tiny string in nature, helping your body or making things like clothes!
While commonly understood as the thread-like material fundamental to textiles and biological structures, fiber also plays a crucial role in nutrition.
Specifically, it refers to the indigestible component of plant-based foods, vital for maintaining a healthy digestive system and warding off various diseases.
This dietary fiber, though not absorbed by the body, facilitates regular bowel movements and can contribute to overall well-being.
Therefore, beyond its structural applications, understanding fiber's significance in diet is essential for comprehensive health knowledge.
While commonly understood as the thread-like components of materials like textiles or biological tissues, the term 'fiber', particularly in a nutritional context, denotes the indigestible carbohydrate matter predominantly found in plant-based sustenance. This dietary fiber, crucial for maintaining optimal gastrointestinal function and overall physiological well-being, plays an indispensable role in mitigating various chronic diseases, thereby underscoring its profound significance beyond its structural definition. Its multifaceted impact on health, ranging from aiding digestion to regulating blood sugar, elevates its importance in a comprehensive understanding of human physiology and preventative medicine. The B2 level definition hints at these roles, but at a C2 level, we appreciate the deeper, more nuanced implications of its biological and health-related functions.
§ Understanding 'Fiber' as a Noun
The word "fiber" is predominantly used as a noun, not an adjective. It refers to a thread-like structure or substance with various applications and meanings depending on the context. Let's explore its common uses and how it functions in sentences.
- Core Definition
- A thread-like structure or substance found in plants, animals, or minerals, used to make textiles or supporting biological tissue. In nutrition, it refers to the indigestible part of plant foods that is essential for healthy digestion and preventing disease.
§ Grammatical Usage and Sentence Structure
As a noun, "fiber" can be either countable or uncountable, depending on the specific meaning and context. This distinction influences how it's used in sentences, particularly with articles and quantifiers.
- Countable (referring to individual threads or strands): When discussing individual strands, fibers can be counted.
The textile was made from long, strong fibers.
- Uncountable (referring to the material or general substance): In many contexts, especially in nutrition or when referring to the material in general, "fiber" is uncountable.
Eating enough fiber is crucial for digestive health.
§ Common Collocations and Phrases
"Fiber" often appears in specific phrases and collocations that are helpful to know for natural-sounding English.
- Dietary fiber: This refers specifically to the indigestible plant material.
Whole grains are an excellent source of dietary fiber.
- Muscle fiber: Refers to the individual cells of a muscle.
Damage to muscle fibers can occur during intense exercise.
- Nerve fiber: A slender, thread-like structure that conducts nerve impulses.
The optic nerve consists of millions of nerve fibers.
- Natural fiber: Materials derived from plants or animals (e.g., cotton, wool).
Clothing made from natural fibers is often more breathable.
- Synthetic fiber: Man-made fibers (e.g., nylon, polyester).
Many activewear garments use synthetic fibers for their wicking properties.
§ Using 'Fiber' with Prepositions
The choice of preposition with "fiber" often depends on the context, particularly when indicating what something is made of or where fiber is found.
- of: To describe what a material or object is composed of.
The rope was made of fiber.
- in: To indicate the presence of fiber within something.
There's plenty of fiber in vegetables.
- from: To indicate the source of the fiber.
Linen is a textile made from flax fiber.
§ Contextual Examples for B2 Level Learners
Here are more examples to help solidify your understanding of "fiber" in various contexts.
- In the context of materials:
The artist used natural fibers like jute and hemp in her sculpture.
Carbon fiber is incredibly strong and lightweight, making it ideal for aerospace components.
- In the context of nutrition:
To improve your digestion, try to eat more fruits and vegetables rich in fiber.
Many breakfast cereals are fortified with extra fiber to support gut health.
- In the context of biology/anatomy:
The doctor explained that the injury affected a bundle of nerve fibers in his arm.
Different types of muscle fibers are responsible for strength and endurance.
§ Fiber: Understanding its Importance
The word "fiber" is a versatile term that appears in various contexts, from discussions about textiles and materials to essential nutrients in our diet. Although the user specified "adjective," the provided definition for "fiber" (a thread-like structure or substance, or an indigestible part of plant foods) clearly describes a noun. Therefore, this explanation will focus on "fiber" as a noun, as that aligns with the given definition.
Understanding "fiber" is particularly important in two key areas: science/manufacturing and nutrition/health. In both cases, the core concept revolves around structural elements or components.
§ Fiber in Science and Manufacturing
In the scientific and manufacturing world, "fiber" often refers to thin, thread-like structures that can be natural or synthetic. These fibers are the building blocks for many materials we use daily. Consider the clothes we wear, the ropes we tie, or even some advanced engineering materials; all rely on the properties of fibers.
- DEFINITION
- A thread-like structure or substance found in plants, animals, or minerals, used to make textiles or supporting biological tissue.
The engineer explained that the new composite material uses a special type of carbon fiber for added strength and durability.
Cotton fiber is a natural product widely used in the textile industry.
You might encounter this usage in news reports about technological advancements, articles on manufacturing processes, or even in school when studying materials science or textiles. The term helps us understand the fundamental components of various products.
- Work: In manufacturing, engineering, or design roles, understanding different types of fibers (e.g., optical fiber, glass fiber, natural fibers) is crucial for product development and quality control.
- School: Science classes, particularly physics and chemistry, often discuss the properties of materials, including various types of fibers. Home economics or design technology classes might cover textile fibers.
- News: News reports on new materials, sustainable manufacturing, or technological breakthroughs often mention the specific fibers being utilized.
§ Fiber in Nutrition and Health
Beyond materials, "fiber" takes on a critical role in discussions about diet and health. Here, it refers to the indigestible part of plant foods. While our bodies can't break it down for energy, it's absolutely vital for maintaining a healthy digestive system and preventing certain diseases.
- DEFINITION
- In nutrition, it refers to the indigestible part of plant foods that is essential for healthy digestion and preventing disease.
Doctors often recommend increasing your dietary fiber intake to improve digestive health.
Whole grains, fruits, and vegetables are excellent sources of natural fiber.
This is a common topic in health reports, dietary guidelines, and educational materials about nutrition. Understanding dietary fiber helps us make informed choices about what we eat to maintain good health.
- Work: For dietitians, nutritionists, or healthcare professionals, a deep understanding of dietary fiber is fundamental for advising patients and promoting healthy eating habits.
- School: Biology and health education classes frequently cover the importance of dietary fiber, its different types (soluble and insoluble), and its impact on the human body.
- News: Health sections of newspapers, magazines, and online articles frequently feature stories about the benefits of a high-fiber diet, new research on gut health, or tips for increasing fiber intake.
§ Conclusion
In summary, the word "fiber," while seemingly simple, carries significant meaning in both the physical world of materials and the biological realm of nutrition. Whether you're discussing the strength of a carbon fiber composite or the digestive benefits of dietary fiber, the term consistently points to essential, often unseen, components that play crucial roles. Being aware of these different applications will enhance your comprehension in a variety of contexts, from everyday conversations to specialized reports.
§ Mistakes people make with this word
The word "fiber" is commonly used, especially in discussions about nutrition and materials. However, there are a few common pitfalls to be aware of to ensure you're using it correctly and conveying your intended meaning.
§ Misunderstanding its countability
One frequent mistake is confusing whether "fiber" should be treated as a countable or uncountable noun. Generally, when referring to the broad category of indigestible plant matter in food, or the general material quality, it's uncountable.
- UNCOUNTABLE
- You need more fiber in your diet.
However, when referring to individual thread-like structures, it can be countable.
- COUNTABLE
- The fabric is made from many strong fibers.
§ Using "fibrous" as a noun
Another common error is using the adjective "fibrous" when the noun "fiber" is required. "Fibrous" describes something that contains or resembles fiber, or is composed of fibers.
- INCORRECT
- The celery is full of fibrous.
- CORRECT
- The celery is full of fiber.
The texture of the root was quite fibrous.
§ Confusion with "fibre"
While not strictly a mistake, it's worth noting the spelling difference between American English ("fiber") and British English ("fibre"). Using the wrong spelling can appear as an error depending on your audience and the regional standard you're adhering to.
- American English: fiber
- British English: fibre
Dietary fiber is important for health. (American English)
Dietary fibre is important for health. (British English)
§ Incorrectly using "fiber" as an adjective
The word "fiber" itself is a noun. While it can sometimes function attributively (e.g., "fiber optics"), it's not a true adjective. If you need an adjective, consider "fibrous" or a phrase using "of fiber."
- INCORRECT
- This is a fiber material.
- CORRECT
- This is a fibrous material.
The rope was made from natural fibers.
By understanding these common mistakes, you can use "fiber" with greater precision and confidence in both its nutritional and material contexts.
按水平分级的例句
The cat has soft fiber fur.
Fur made of soft threads.
Here 'fiber' describes the type of fur.
This rope is made of strong fiber.
The rope is made from strong threads.
'Fiber' is used as an adjective to describe the material.
I like clothes made from natural fiber.
Clothes made from natural threads.
'Natural fiber' refers to materials like cotton or wool.
Eating fruit gives you good fiber.
Fruit has healthy parts for your stomach.
In this context, 'fiber' refers to the dietary component.
The plant has long fiber stems.
The plant has long thread-like stems.
'Fiber' describes the texture of the stems.
This paper is made from wood fiber.
Paper made from wood threads.
'Wood fiber' indicates the origin of the paper material.
You need fiber in your food.
Your food needs the healthy part that helps digestion.
This is about the nutritional aspect of 'fiber'.
The fabric feels like rough fiber.
The cloth feels like rough threads.
'Rough fiber' describes the texture of the fabric.
The finely woven fabric was created from natural **fiber**s, lending it both durability and a soft texture.
Natural fibers used for fabric.
Here, 'fiber' is used as a plural noun to refer to multiple threads.
Dietary **fiber** is crucial for maintaining a healthy digestive system and can be found abundantly in fruits, vegetables, and whole grains.
Fiber in food for digestion.
'Dietary fiber' acts as a compound noun.
Engineers are exploring new composite materials that incorporate advanced carbon **fiber** for enhanced strength-to-weight ratios in aerospace applications.
Carbon fiber for strong materials.
'Carbon fiber' is a specific type of fiber, functioning as a noun.
The doctor recommended increasing his intake of insoluble **fiber** to help alleviate his persistent digestive issues.
Insoluble fiber for digestive problems.
'Insoluble fiber' specifies a type of dietary fiber.
Some archaeological discoveries include ancient textiles remarkably preserved, showcasing the sophisticated use of plant **fiber**s by early civilizations.
Plant fibers in old textiles.
'Plant fibers' indicates the origin of the fibers.
Optical **fiber** cables have revolutionized telecommunications, enabling high-speed data transmission over long distances with minimal signal loss.
Optical fiber for fast internet.
'Optical fiber' is a technical term for a type of fiber used in technology.
Many contemporary artists utilize various types of natural and synthetic **fiber**s in their textile art, pushing the boundaries of traditional craftsmanship.
Artists using natural and synthetic fibers.
Here, 'fibers' is plural, indicating different kinds of fiber.
The nutritional label clearly indicated the amount of crude **fiber** per serving, which is an important consideration for a balanced diet.
Crude fiber on food labels.
'Crude fiber' is a specific measurement term in nutrition.
自我测试 90 个问题
Which of these foods has a lot of fiber?
Fruits like apples are good sources of fiber.
What is fiber good for in your body?
Fiber helps your stomach and intestines work well.
Which sentence uses the word 'fiber' correctly?
Fiber can be a material used to make things like rope.
Only plants have fiber.
Fiber in nutrition comes from plant foods.
Eating fiber helps you feel full.
Fiber adds bulk to your food, which can help you feel satisfied.
Meat is a good source of fiber.
Meat does not contain dietary fiber. Fiber comes from plants.
Write a short sentence about something healthy you eat that has fiber.
Well written! Good try! Check the sample answer below.
Sample answer
I eat apples. Apples have fiber.
Complete the sentence: 'Fruits and vegetables have a lot of ___.'
Well written! Good try! Check the sample answer below.
Sample answer
Fruits and vegetables have a lot of fiber.
Write one food that is good for you because it has fiber.
Well written! Good try! Check the sample answer below.
Sample answer
Oats are good for you because they have fiber.
What does the passage say apples have?
Read this passage:
My favorite snack is an apple. Apples are good for my body. They have fiber. Fiber helps my stomach feel good. I eat one apple every day.
What does the passage say apples have?
The passage states, 'They have fiber.'
The passage states, 'They have fiber.'
What is good for your health according to the passage?
Read this passage:
Bread can be made with different things. Some bread has a lot of fiber. This kind of bread is good for your health. It helps you digest food.
What is good for your health according to the passage?
The passage says, 'Some bread has a lot of fiber. This kind of bread is good for your health.'
The passage says, 'Some bread has a lot of fiber. This kind of bread is good for your health.'
Which food is mentioned as having fiber?
Read this passage:
We need to eat healthy food. Healthy food helps our bodies work well. Some healthy foods have fiber. Fiber is important for a healthy stomach. Carrots have fiber.
Which food is mentioned as having fiber?
The passage says, 'Carrots have fiber.'
The passage says, 'Carrots have fiber.'
This sentence tells us that fiber is healthy.
This sentence shows where we can find fiber.
This sentence explains why we eat fiber.
Which of these foods is high in fiber?
Apples are a fruit and contain a lot of fiber, which is good for your digestion.
What does 'fiber' help with in your body?
Fiber helps your digestive system work well and keeps you healthy.
Which material is often made from natural fibers?
Cotton is a plant fiber that is used to make clothes like shirts.
Eating fiber can help you stay healthy.
Yes, fiber is an important part of a healthy diet.
All types of meat have a lot of fiber.
No, fiber comes from plants, not from meat.
Textiles like clothes are sometimes made from fibers.
Yes, many clothes are made from natural or synthetic fibers.
The word is about healthy food.
Think about what's good for your stomach.
Consider materials for clothes.
Read this aloud:
Eating fiber helps your body stay healthy.
Focus: fi-ber, health-y
你说的：
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Read this aloud:
Do you eat enough fiber every day?
Focus: e-nough, ev-er-y
你说的：
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Read this aloud:
I like clothes made from strong fibers.
Focus: strong, fi-bers
你说的：
Speech recognition is not supported in your browser. Try Chrome or Edge.
Write a short sentence using the word 'fiber' to describe a type of food that is good for you.
Well written! Good try! Check the sample answer below.
Sample answer
Eating fruits with a lot of fiber is good for your stomach.
Imagine you are talking about clothes. Use the word 'fiber' to describe what a shirt is made from.
Well written! Good try! Check the sample answer below.
Sample answer
This shirt is made from a soft fiber like cotton.
Complete the sentence: 'Vegetables have a lot of _____, which helps your body stay strong.'
Well written! Good try! Check the sample answer below.
Sample answer
Vegetables have a lot of fiber, which helps your body stay strong.
What is good about apples, according to the text?
Read this passage:
Apples are a very healthy fruit. They have a lot of fiber, which is good for your digestion. Eating an apple every day can help you feel full and keep your body working well.
What is good about apples, according to the text?
The passage states, 'They have a lot of fiber, which is good for your digestion.'
The passage states, 'They have a lot of fiber, which is good for your digestion.'
What are natural fibers made from?
Read this passage:
Some clothes are made from natural fibers, like cotton or wool. These fibers come from plants or animals. Other clothes are made from man-made fibers, like polyester. These are made in factories.
What are natural fibers made from?
The text says, 'These fibers come from plants or animals.'
The text says, 'These fibers come from plants or animals.'
Why is eating fiber important?
Read this passage:
Eating foods with a lot of fiber, like bread and pasta, is important for your health. Fiber helps your stomach work correctly and makes you feel good. Try to eat a good amount of fiber every day.
Why is eating fiber important?
The passage says, 'Fiber helps your stomach work correctly and makes you feel good.'
The passage says, 'Fiber helps your stomach work correctly and makes you feel good.'
This sentence is a simple statement about the health benefits of fiber.
This sentence describes where fiber can be found.
This sentence encourages eating foods rich in fiber.
Which of these foods is a good source of dietary fiber?
Apples are fruits, and fruits are known for being good sources of dietary fiber, which is important for digestion.
What is one main benefit of eating foods rich in fiber?
Fiber is the indigestible part of plant foods that is essential for healthy digestion and preventing disease.
Which material is often made from natural fibers?
Cotton is a plant fiber that is commonly used to make textiles like shirts.
Dietary fiber is mainly found in animal products.
Dietary fiber refers to the indigestible part of plant foods, not animal products.
Eating enough fiber can help prevent some diseases.
The definition states that fiber is essential for healthy digestion and preventing disease.
A fiber is always a soft, fluffy material.
While some fibers are soft (like cotton), the definition also includes supporting biological tissue, which may not be soft, and fibers used for textiles can vary in texture.
Think about healthy eating.
Consider materials for clothing.
What advice might a doctor give about diet?
Read this aloud:
Eating a diet rich in fiber can help prevent certain diseases.
Focus: fiber
你说的：
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Read this aloud:
Do you prefer clothes made from synthetic or natural fibers?
Focus: fibers
你说的：
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Read this aloud:
My nutritionist advised me to eat more fiber-rich foods.
Focus: nutritionist, fiber-rich
你说的：
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This sentence highlights the importance of fiber for digestion.
This sentence is an instruction to consume more fiber-rich foods.
This sentence explains that plants are a source of natural fibers.
Which of the following is an example of a fiber found in plants?
Cellulose is a primary component of plant cell walls and is a common type of dietary fiber. Keratin, collagen, and elastin are animal proteins.
Why is dietary fiber considered essential for healthy digestion?
Dietary fiber, especially insoluble fiber, adds bulk to stool, which helps to prevent constipation and promote regular bowel movements. It does not provide quick energy or directly break down fats.
What is a common use for fibers extracted from plants?
Fibers from plants, such as cotton or linen, are widely used in the textile industry to create fabrics for clothing and other goods.
All types of fiber can be digested by the human body.
The definition states that dietary fiber is the 'indigestible part of plant foods'. While some fibers can be partially fermented by gut bacteria, they are not digested in the same way as carbohydrates, proteins, or fats.
The term 'fiber' can refer to both natural and synthetic thread-like materials.
The provided definition specifically refers to 'A thread-like structure or substance found in plants, animals, or minerals', which implies natural sources, not synthetic materials.
Eating enough fiber can help prevent certain diseases.
The definition states that dietary fiber is 'essential for healthy digestion and preventing disease'. Adequate fiber intake is associated with a reduced risk of various conditions, including heart disease and type 2 diabetes.
Focus on the word 'fiber' and its context in a health recommendation.
Listen for 'natural fibers' and examples of materials they are used for.
Pay attention to the adjective 'fibrous' and what it describes.
Read this aloud:
Can you explain the importance of dietary fiber in a healthy diet?
Focus: dietary fiber
你说的：
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Read this aloud:
Describe some common types of fiber used in textiles and their properties.
Focus: textiles, properties
你说的：
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Read this aloud:
How does the structure of a fiber contribute to its strength and flexibility?
Focus: structure, strength, flexibility
你说的：
Speech recognition is not supported in your browser. Try Chrome or Edge.
Focus on the phrase 'nerve fibers' and its significance in biological transmission.
Listen for 'carbon fibers' and their application in advanced materials.
Pay attention to 'consuming sufficient fiber' and its health benefits.
Read this aloud:
Explain how the structural integrity of certain synthetic materials is derived from the arrangement and bonding of their constituent fibers.
Focus: structural integrity, constituent fibers
你说的：
Speech recognition is not supported in your browser. Try Chrome or Edge.
Read this aloud:
Discuss the nuanced distinction between soluble and insoluble dietary fibers, providing examples of food sources rich in each type.
Focus: nuanced distinction, soluble, insoluble
你说的：
Speech recognition is not supported in your browser. Try Chrome or Edge.
Read this aloud:
Articulate the challenges faced by textile engineers in developing novel fibers that offer both enhanced performance characteristics and sustainable production methods.
Focus: articulate, novel fibers, sustainable production
你说的：
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Elaborate on the multifaceted role of dietary fiber in human health, discussing its mechanical and biochemical contributions to digestion and disease prevention. Support your arguments with nuanced understanding of its classifications and physiological effects.
Well written! Good try! Check the sample answer below.
Sample answer
Dietary fiber, an umbrella term for indigestible carbohydrates, plays a pivotal and multifaceted role in maintaining human health. Mechanically, insoluble fibers, such as cellulose and lignin, provide bulk to stool, facilitating regular bowel movements and preventing constipation, thereby reducing the risk of diverticular disease. Biochemically, soluble fibers, like pectins and gums, form viscous gels in the digestive tract, which can slow glucose absorption, aiding in glycemic control, and bind to cholesterol, promoting its excretion and reducing cardiovascular risk. Furthermore, soluble fibers undergo fermentation by the gut microbiota in the large intestine, producing short-chain fatty acids that nourish colonocytes and may exert anti-inflammatory and anti-carcinogenic effects, particularly in the context of colon cancer prevention. The intricate interplay of these mechanical and biochemical actions underscores fiber's profound impact on digestive health, metabolic regulation, and overall well-being.
Analyze the historical evolution of textile production, tracing the shift from natural fibers to synthetic alternatives and evaluating the socio-economic and environmental implications of this transition.
Well written! Good try! Check the sample answer below.
Sample answer
The historical evolution of textile production is marked by a significant shift from reliance on natural fibers to the widespread adoption of synthetic alternatives, a transition with profound socio-economic and environmental ramifications. Prior to the 20th century, textiles were primarily derived from natural sources such as cotton, wool, silk, and linen, their cultivation and processing often deeply integrated into agrarian economies. The advent of the Industrial Revolution mechanized these processes, increasing efficiency but also introducing new labor dynamics. The mid-20th century witnessed the rise of synthetic fibers like nylon and polyester, lauded for their durability, versatility, and cost-effectiveness. This innovation fueled mass production and the 'fast fashion' phenomenon, democratizing clothing but simultaneously exacerbating environmental concerns. The petrochemical origins of synthetics contribute to carbon emissions and their non-biodegradability leads to persistent pollution. Moreover, the globalized production of synthetic textiles has often been linked to exploitative labor practices. While natural fibers present their own ecological footprint, particularly in terms of water usage and pesticide application, the long-term sustainability of the textile industry hinges on a critical re-evaluation of our dependence on synthetic materials and a renewed focus on circular economy principles and ethical sourcing.
Discuss the metaphoric use of 'fiber' in expressions like 'moral fiber' or 'fiber of society.' How does this abstract application connect to the concrete definitions of fiber, and what does it reveal about societal values or individual character?
Well written! Good try! Check the sample answer below.
Sample answer
The metaphoric use of 'fiber' in expressions such as 'moral fiber' or 'the fiber of society' elegantly extends the concrete properties of physical fibers to abstract concepts of character and communal structure. Physically, a fiber is a thread-like, often strong and resilient, component that lends strength, support, and cohesion to a larger whole, whether in textiles or biological tissues. When applied to 'moral fiber,' this evokes an individual's inherent strength of character, their resilience in adhering to ethical principles, and their integrity in the face of adversity. It suggests an inner framework or foundation that prevents moral dissolution. Similarly, 'the fiber of society' refers to the fundamental elements or values that bind a community together, providing its structural integrity and preventing its fragmentation. This metaphor reveals a profound societal value placed on strength, resilience, and interconnectedness, both individually and collectively. A strong moral fiber implies an unwavering ethical compass, while a robust societal fiber indicates a cohesive and functional community. The abstraction thus underscores the critical importance of these intangible qualities in maintaining order, progress, and well-being, mirroring the essential role that physical fibers play in their respective domains.
Which of the following is the primary reason fiber optic cables are preferred for modern communication?
Read this passage:
Modern communication heavily relies on fiber optic cables, which transmit data as pulses of light. These cables consist of numerous strands of highly purified glass or plastic, each no thicker than a human hair. The internal reflection of light within these fibers allows for incredibly fast and efficient data transfer over vast distances, revolutionizing global connectivity. This technology underpins the internet, telecommunications, and a myriad of other digital services.
Which of the following is the primary reason fiber optic cables are preferred for modern communication?
The passage explicitly states that 'The internal reflection of light within these fibers allows for incredibly fast and efficient data transfer over vast distances, revolutionizing global connectivity,' indicating this as the primary advantage.
The passage explicitly states that 'The internal reflection of light within these fibers allows for incredibly fast and efficient data transfer over vast distances, revolutionizing global connectivity,' indicating this as the primary advantage.
According to the passage, what dictates the specific applications of different types of fibers?
Read this passage:
The term 'fiber' in material science can be quite broad, encompassing a spectrum of materials from natural polymers like cotton and silk to synthetic polymers such as nylon and Kevlar. Each type possesses distinct properties, influencing its application. Cotton's breathability makes it ideal for clothing, while Kevlar's exceptional tensile strength is exploited in bulletproof vests and aerospace components. Understanding these inherent properties is crucial for engineering materials with specific functionalities.
According to the passage, what dictates the specific applications of different types of fibers?
The passage states, 'Each type possesses distinct properties, influencing its application,' and provides examples like cotton's breathability for clothing and Kevlar's tensile strength for bulletproof vests.
The passage states, 'Each type possesses distinct properties, influencing its application,' and provides examples like cotton's breathability for clothing and Kevlar's tensile strength for bulletproof vests.
What is the primary role of 'stellar fiber' in astrophysics, as described in the passage?
Read this passage:
In the realm of astrophysics, 'stellar fiber' refers to elongated structures of gas and dust that are gravitationally bound within galaxies or clusters of galaxies. These cosmic fibers are often seen as conduits for gas flow, feeding star formation in denser regions. Their formation and evolution are complex processes influenced by galactic dynamics, magnetic fields, and supernova explosions. Studying these structures provides crucial insights into the large-scale distribution of matter in the universe.
What is the primary role of 'stellar fiber' in astrophysics, as described in the passage?
The passage clearly states that 'These cosmic fibers are often seen as conduits for gas flow, feeding star formation in denser regions,' indicating their primary role.
The passage clearly states that 'These cosmic fibers are often seen as conduits for gas flow, feeding star formation in denser regions,' indicating their primary role.
This sentence highlights the nutritional aspect of fiber and its role in digestion.
This sentence focuses on the industrial application of fibers in textile production.
This sentence emphasizes the biological function of fiber as a supporting tissue.
/ 90 correct
Perfect score!
例句
I try to eat a lot of fruit and vegetables to make sure I get enough dietary fiber.
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abcitless
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abcognacy
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abdocion
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