2026年3月托福机经套卷(第2套)Listen to an Academic Talk / 24 道题

Listen to an Academic Talk / 2

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What is the main topic of the talk?

AThe impact of light pollution on different bird species

BA comparison of navigational cues used by migratory birds

CThe impact of climate change on bird habitats

DBird migration and its associated challenges

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正确答案：D

How does a special protein in the eyes of some birds help them navigate?

AIt helps them determine the position of the stars.

BIt helps them look toward the Sun without injury.

CIt helps them see Earth's magnetic field.

DIt helps them sleep with their eyes open.

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正确答案：C

What does the speaker warn may cause imbalances in food webs?

AA decrease in the population of migrating birds

BSlight changes in the migratory paths of birds

CIncreases in the distances traveled by migrating birds

DDecreases in the population of pests along migratory paths

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正确答案：A

According to the speaker, what is a measure people can take to protect migrating birds?

AProducing fewer carbon emissions during the migration season

BTurning off unnecessary lights at night

CMaking food available to migrating birds

DOffering shelter to migrating birds during harsh weather

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正确答案：B