2026年3月托福机经套卷(第4套)Listen to an Academic Talk / 24 道题

Listen to an Academic Talk / 2

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共用录音 1

Who discovered the first gas emission crater in 2014?

AA pilot

BA scientist

CA local resident

DA gas extraction employee

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正确答案：A

What feature of the gas emission crater is the speaker most impressed with?

AIts size

BIts shape

CThe temperature inside it

DThe variety of materials found near it

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正确答案：A

Why most likely is the speaker concerned about the explosions?

AThey might cause more warming.

BThey might damage wide areas of permafrost.

CThey might discourage people from visiting Siberia.

DThey might be dangerous for pipelines.

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正确答案：D

The speaker mentions empty cavities that fill with gas. What causes these cavities to form?

AThe building of pipelines

BThe loss of ice from frozen soil

CThe removal of oil from the ground

DThe pressure from underground gas

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正确答案：B