2026年5月托福机经套卷(第5套)Listen to an Academic Talk4 道题

Listen to an Academic Talk

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共用录音 1

What is the purpose of the talk?

ATo help listeners appreciate the skill of elite skaters

BTo explain the environmental impact of melting ice

CTo highlight recent innovations in skate design

DTo illustrate a physical principle

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正确答案：D

According to the speaker, what happens when a skate blade moves across the ice?

AAir bubbles under the surface of the ice move.

BSmall cracks appear in the ice.

CA thin layer of water is formed on the ice.

DA small amount of steam is produced.

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正确答案：C

What does the speaker say about highly experienced ice skaters?

AThey prefer to skate on ice that has been solid for several days.

BThey use special techniques to control friction.

CThey train on surfaces that are less likely to melt under pressure.

DThey use blades made of special materials.

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正确答案：B

Why does the speaker talk about glaciers?

ATo introduce another field where pressure melting is relevant

BTo suggest that friction plays a greater role in glacier melt than previously thought

CTo argue that climate change has accelerated in recent years

DTo provide an example of how scientists are applying skating technology to other areas of study

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正确答案：A