2026年2月托福机经套卷(第7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 main topic of the talk?

AInteresting facts about sea otters and other marine mammals

BThe importance of preserving kelp forests

CSea otters and their ecological role

DSea otter adaptations to their habitat

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正确答案：C

What characteristic distinguishes sea otters from most other animals?

ATheir appetite for kelp

BTheir ability to breathe under water

CTheir protective blubber

DTheir use of tools

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正确答案：D

What function do sea otters perform in their marine ecosystem?

AThey keep kelp forests healthy by preying on sea urchins.

BThey remove clams and other invasive shellfish from shorelines.

CThey are food for predators such as whales and seals.

DThey build shelters that act as a buffer against storm damage.

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正确答案：A

According to the speaker, what is one benefit that kelp forests provide?

AThey expand shorelines by trapping sediment and building new land.

BThey provide habitat for a great diversity of marine life.

CThey clean seawater to make it drinkable or suitable for agriculture.

DThey help control the population of sea urchins and other pests.

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正确答案：B