2026年3月托福机经套卷(第8套)Listen to an Academic Talk / 24 道题

Listen to an Academic Talk / 2

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What makes tardigrades unique among animals?

AThe structure of their eyes

BThe range of their sizes

CTheir ability to change their body temperature

DTheir ability to survive in various extreme environments

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正确答案：D

What does the speaker emphasize about metabolic activities?

AThey all require water.

BThey occur more quickly at higher temperatures.

CSome of them can occur in damaged cells.

DSome of them involve special proteins.

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正确答案：A

What does the speaker say about tardigrades' ability to withstand radiation?

AIt was first discovered when tardigrades were sent into space.

BIt is dependent on the size of a particular tardigrade.

CIt has resulted in research on the benefits of cryptobiosis.

DIt has implications for improving an important medical procedure.

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正确答案：D

Why does the speaker mention a research study that was done in 2007?

ATo explain why astronomers are interested in tardigrades

BTo identify a problem with earlier research on tardigrades

CTo describe the process that tardigrades use to adapt to the vacuum of space

DTo suggest that tardigrades would have difficulty surviving on other planets

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正确答案：A