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2022年英语专四听力训练50篇（46）

2021-12-25 08:07:00来源：网络

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　　Living Space

　　How much living space does a person need? What happens when his space needs are not met? Scientists are doing experiments on rats to try to determine the effects of overcrowded conditions on man. Recent studies have shown that the behaviour of rats is greatly affected by space. If rats have enough living space, they eat well, sleep well and produce their young well. But if their living conditions become too crowded, their behaviour and even their health change obviously. They can not sleep and eat well, and signs of fear and worry become clear. The more crowded they are, the more they tend to bite each other and even kill each other. Thus, for rats, population and violence are directly related. Is this a natural law for human society as well? Is enough space not only satisfactory, but necessary for human survival? These are in teresting questions. (147 words)

　　Useful Words and Expressions:

　　determine V.测定;决心;决意

　　determine the velocity测定速度

　　He determined to go.他决意要去。

　　I am determined to do better than Mike.我决心比迈克做得更好。

　　tend to v. 有某种倾向;有……的趋势

　　He tends to pitch the ball too high.他往往把球掷得过高。

　　People under stress tend to express their full range of potential. 处于压力下的人容易发挥自己全部的潜力。

　　survival n.生存

　　We need food and water for survival.我们为了生存需要食物和水。

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