【正确答案】
D
【答案解析】[听力原文]29-31
Living things take from their environment and give back to their environment. In other words, living things and their environment are interdependent. Living things take matter
and energy from the environment, and return matter and energy to the environment. For instance, animals feed on plants, or on other animals. And they return materials to the environment. This interaction goes on continually.
Man also is in active give-and-take relations with his environment. However, there is one way in which man is different. Other living things do not change their environment the way man does. Man is not only adapted to the environment. He ahem his environment in other complex ways.
How is it that man can alter his environment, as no other living thing can? It is because of his brain. With his brain, man learns.
Man's brain makes it possible for him to record what he learns. He puts his records in words, in pictures, in sounds. In this way man can pass on what he learns to other men.
29. What's the relationship between living things and their environment?
[试题分析]本题是考查对关键词的理解。
[详细解答]短文中可以听到：living things and their environment are interdependent.故选D。
【正确答案】
B
【答案解析】[听力原文]
What's the difference between man and other living things according to the passage?
[试题分析]本题是细节题，抓住关键词语，根据选项进行判断。
[详细解答]文中可以听到：Other living things do not change their environment the way man does. Man is not only adapted to the environment. He alters his environment in other complex ways.故选B。