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专四听写训练5.Living Space

所属:专四专八 来源:普特英语 阅读:4186 次 评论:2 条 [我要评论]  [+我要收藏]

小编摘要:英语专业四级听写训练5.Living Space

听写原文:

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 detemp3ine the effects of overcrowded conditions on man. Recent studies have shown that the behavior 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 behavior 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, and more they tend to bite each other and even kill each other. Thus, for rats, populations 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 interesting questions.



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2011-04-12 14:20 编辑:红木梳子
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