[originaltext] There are two factors which determine an individual’s intellig

游客2024-02-17  27

问题  
There are two factors which determine an individual’s intelligence. The first is the sort of brain he is born with. Human brains differ considerably, some being more capable than others. But no matter how good a brain the has to begin with, an individual will have a low order of intelligence unless ha has opportunities to learn. the second factor is what happens to the individual—the sort of environment in which he is reared. If an individual is handicapped environmentally, it is likely his brain will fail to develop and he will never attain the level of intelligence of which he is capable.
   The importance of environment in determining an individual’s intelligence can be demonstrated by the case history of the identical twins, Peter and Mark. The twins had identical brain at birth. When the twins were three months old, their parents died, and they were placed in different homes. Peter was reared by parents of low intelligence in an isolated community with poor educational opportunities. Mark was reared in the home of well-to-do parents who had been to college. He was sent to good schools, and given every opportunity to be stimulated intellectually. This environmental difference continued until the twins were in their late teens, when they were given tests to measure their intelligence. Mark’s I. Q. was 125, twenty five points higher than the average and fully forty points higher than his identical brother.

选项 A、It can be predicted at birth.
B、It stays the same throughout his life.
C、It can be increased by education.
D、It is inherited from his parents.

答案 C

解析 [听力原文]
What can we infer from the passage about an individual’s I. Q. ?
[听前预测] 通过选项可知本题可能关于影响个人I. Q. 水平的因素。
[答案详解] 推理判断题[考频:18]。本题关键句为“Mark was... been to college. He was sent to good schools...”Mark和Peter是孪生兄弟,出生时智力水平相当,由于抚养Mark的夫妇给他创造了良好的生活环境,让他接受良好教育,使得他的智力水平远高于Peter。故正确答案为C)。
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