2026年6月托福机经套卷(第1套)Listen to an Academic Talk4 道题

Listen to an Academic Talk

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What question about paleognaths does the speaker mainly discuss?

AHow researchers studied adaptations of modern paleognaths

BWhen ancient paleognaths began to evolve separately

CWhether different paleognaths are genetically related

DHow paleognath species ended up on different continents

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正确答案：D

What attitude regarding paleognaths does the speaker express at the beginning of the talk?

AHe is confident that listeners know some species of them.

BHe is concerned that some species of them can go extinct.

CHe is impressed with how long they have existed.

DHe is eager to find out the results of a future study about them.

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正确答案：A

What does the speaker emphasize about the supercontinent?

AIt may have been smaller than previously thought.

BIt may have destroyed fossil evidence of paleognaths.

CIt existed long before the ancestor species of paleognaths appeared.

DIts conditions were not ideal for paleognath survival.

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正确答案：C

What does the speaker say about the evolution of Lithornis over time?

AThe evolution of its breastbone limited its ability to fly.

BIt stopped flying when it no longer needed to escape predators.

CIt evolved the ability to fly after the dinosaurs went extinct.

DIt evolved the ability to eat a wide variety of food.

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正确答案：B