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《现代大学英语听力2》听力原文及题目答案Unit 14

y, too. They are active, but not as active as the thinner mice. But they only live about two years, not the three years or more of the thinner mice.

The last group of mice is receiving more food than the other two groups. Most of the day, these mice are eating or sleeping. They’re not very active. These mice are living longer than the scientists thought — about a year and a half. But they are not healthy. They’re sick more often than the other two groups.

The experiment is still going on. The scientists hope to finish their studies in two years.

Task 2

【答案】

A.

1) People keep fish in a certain place just as they keep sheep and cattle.

2) By education.

3) Waste pollutes the sea, and plankton dies. Other sea animals that live on plankton cannot find

enough food.

4) They needed to kill whales for their meat, their bones and the oil from their fat. But they have other materials now.

B.

《现代大学英语听力2》听力原文及题目答案Unit  14

C.

People on land'

Large fish

Smaller fish

Zoo plankton

Plant plankton

【原文】

Mike: Good morning, and welcome to Radio Time. For our monthly programme, Science Today, I've invited a group of scientists to the studio to talk about sea life — Professor Adams, Dr. Brown and Dr. Church. It's good to have you with us. Professor Adams, I've read in the papers that sea life is in danger. Is this true?

Adams: I'm afraid so, very true. As the world population grows, we need more food, so we catch more fish. We're overfishing the sea, and soon there won't BE any fish.

Brown: The answer is to start more fish farms on land.

Church: I agree. We must keep fish, like we keep sheep and cattle.

Adams: Fish farms are a good idea, but I don't think they will solve the problem of overfishing the sea. We have to stop people fishing in certain parts of the ocean.

Church: Yes. We need international rules to protect fish, and all the countries of the world must agree to obey them.

Brown: We have rules now, and people don't obey them. I agree that we must stop fishing in