2026年5月托福机经套卷(第2套)Read an Academic Passage5 道题

Spider Silk in Medicine

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Spider Silk in Medicine Spider silk is one of nature's most remarkable materials, known for its strength and elasticity. Stronger than steel and highly stretchable, spider silk has inspired researchers to explore its medical potential. Researchers have experimented with spider silk as a surgical suture material for use in stitching wounds, praising its strength and biocompatibility—a material's ability to interact with the human body without causing adverse reactions, such as inflammation or rejection. Spider silk meets this criterion exceptionally well. It integrates smoothly with human tissues, minimizing immune response and promoting faster healing. Additionally, its natural elasticity helps the sutures adapt to bodily movements, reducing the risk of sutures rupturing under tension. Spider silk has been woven into advanced dressings for wounds that accelerate recovery. Spider silk's biocompatibility and ability to retain moisture make it ideal for treating chronic wounds and joint injuries. Spider silk-based bandages can also be infused with medications for localized drug delivery, reducing infection risk and improving treatment outcomes. However, large-scale production is challenging. Spiders are territorial and cannibalistic, making farming them for silk impractical. Scientists have turned to synthetic methods of producing spider silk using genetically modified bacteria and yeast, but scaling up these techniques remains difficult. Researchers continue refining techniques to make spider silk more accessible.

Question 1查看单题

The word "remarkable" in the passage is closest in meaning to

Amysterious

Babundant

Canalyzed

Dextraordinary

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正确答案：D

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Question 2查看单题

Identify the sentence in paragraph 2 that contains the definition of a term. Select the sentence to make your choice.

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参考答案：Researchers have experimented with spider silk as a surgical suture material for use in stitching wounds, praising its strength and biocompatibility—a material's ability to interact with the human body without causing adverse reactions, such as inflammation or rejection.

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Question 3查看单题

The passage indicates all of the following about spider silk-based sutures EXCEPT:

AThey are less likely to cause inflammation.

BThey are easily incorporated into human tissues.

CThey are less expensive than traditional sutures.

DThey are less likely to fail when placed under stress.

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正确答案：C

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Question 4查看单题

All of the following are benefits of wound dressings made from spider silk EXCEPT:

AThey speed up the recovery process.

BThey are simple to prepare and apply.

CThey do not dry out as quickly as other dressings.

DThey make localized drug delivery easy.

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正确答案：B

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Question 5查看单题

There are four locations █ in the passage that indicate where the following sentence could be added.

By contrast, silkworms, traditionally used for obtaining silk, are domesticated and easy to manage.

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