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  3. How much living space does a person need? What happens when his space requirements are not adequately met? Sociologists and psyc

How much living space does a person need? What happens when his space requirements are not adequately met? Sociologists and psyc

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问题     How much living space does a person need? What happens when his space requirements are not adequately met? Sociologists and psychologists are conducting experiments on rats to try to determine the effect of overcrowded conditions on man.(71)Recent studies have shown that the behavior of rats is greatly affected by space. If rats have adequate living space, they eat well, sleep well, and reproduce well. However, if their living conditions become too crowded, their behavior patterns and even their health perceptibly change. They cannot sleep or eat well, and signs of fear and tension become obvious. 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 adequate space not only desirable, but also essential for human survival?
How would rats behave when their living conditions become too crowded?
选项 A、They eat a lot and become friendly to others.
B、They sleep little and act quite peacefully.
C、They eat little but sleep soundly.
D、They become nervous and tend to be war-like.
答案D
解析 事实细节题。根据文章倒数第四、五句“They cannot sleep or eat well，and signs of fear and tension become obvious．The more crowded they are，the more they tend to bite each other and even kill each other．”可知，当生活的空间变得很拥挤时，老鼠们会恐惧、紧张，相互撕咬，甚至会咬死对方。故答案为D，war-like意为“好战的”。
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