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  3. Are some people born clever, and others born stupid? Or is intelligence(智力)developed by our environment and our experience? Stra

Are some people born clever, and others born stupid? Or is intelligence(智力)developed by our environment and our experience? Stra

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问题     Are some people born clever, and others born stupid? Or is intelligence(智力)developed by our environment and our experience? Strangely enough, the answer to both these questions is yes. To some extent our intelligence is given us at birth, and no amount of special education can make a genius(天才)out of a child born with low intelligence. On the other hand, a child who lives in a boring environment will develop his intelligence less than one who lives in rich and varied surroundings. Thus the limits of a persons intelligence are fixed at birth, but whether or not he reaches those limits will depend on his environment. This view, now held by most experts, can be supported in a number of ways.
    It is easy to show that intelligence is to some extent something we are born with. The closer the blood relationship between two people, the closer they are likely to be in intelligence. Thus, if we take two unrelated people at random(随意)from the population. it is likely that their degrees of intelligence will be completely different. If on the other hand we take identical twins, they will very likely be as intelligent as each other. Relations like brothers and sisters, parents and children, usually have similar intelligence, and this clearly suggests that intelligence depends on birth.
    Imagine now that we take two identical(同一的)twins and put them in different environments. We might send one, for example, to a university and the other to a factory where the work is boring. We would soon find differences in intelligence developing, and this indicates that environment as well as birth plays a part. This conclusion us also supported by the fact that people who live in close contact with(与……相接触)each other, but who are not related at all, are likely to have similar degress of intelligence.
The author’s purpose of writing this passage is______.
选项 A、to emphasize the importance of environment in intelligence development
B、to argue that factories should beautify the dull setting
C、to explain how birth and environment influence intelligence
D、to support the view that both birth and environment influence intelligence
答案D
解析 纵观全文，作者支持大部分专家的观点，既先天素质和后天环境相互作用影响着智力。所以D为正确答案。
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