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 he has to begin with, an individual will have a low order of intelligence unless he has opportunities to learn． So the second factor is what happens to the individual--the sort of environment in which he is brought up． If an individual is handicapped environmentally, it is likely that his brain will fail to develop and he will never attain the level of intelligence of which he is capable．
Theimportanceofenvironmentindetermininganindividual'sintelligencecanbe?
demonstrated by the case history of the identical twins, Peter and Mark． Being identical, the twins had identical brains at birth, and their growth processes were the same． When the twins were three months old, their parents died, and they were placed in separate foster homes． Peter was raised 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 read to as a child, 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 LQ． was 125, twenty-five points higher than the average and fully forty points higher than his identical brother． Given equal opportunities, the twins, having identical brains, would have tested at roughly the same level．
?The best statement of the main idea of this passage is that__________．
- A.human brains differ considerably
- B.the brain a person is born with is important in determining his intelligence
- C.environment is crucial in determining a person's intelligence
- D.persons having identical brains will have roughly the same intelligence
正确答案及解析
正确答案
解析
能够体现主旨的最好论述是C项，即环境在决定一个人智力高低上面起关键性作用。
包含此试题的试卷
你可能感兴趣的试题
有“泥土诗人”之称的诗人是（）。
-
- A.臧克家
- B.田间
- C.艾青
- D.许地山
- 查看答案
明朝初年强化君主专制的措施是（）。
-
- A.增设军机处
- B.采用三省六部制
- C.废除丞相.权分六部
- D.设中书省为全国最高行政机构
- 查看答案
钱穆在评论中国古代某制度时说，它“可以培植全国人民对政治之兴味……可以团结全国各地域于一个中央之统治”，这一制度是()。
-
- A.郡县制
- B.察举制
- C.科举制
- D.行省制
- 查看答案
将下列各项按所表示年龄大小顺序排列，正确的顺序应是（ ）。
①不惑②垂髫③花甲④加冠⑤而立⑥古稀⑦半百
-
- A.②④①⑦⑤③⑥
- B.④②③⑥①⑦⑤
- C.⑥⑤③②④⑦①
- D.②④⑤①⑦③⑥
- 查看答案
1931年，一位给人们带来光明的科学家重病的消息牵动着世界人民的心，几十名记者为他守夜。每隔一个小时就对外发布一次消息：“灯”还亮着。这位科学家是（ ）。
-
- A.瓦特
- B.法拉第
- C.爱迪生
- D.爱因斯坦
- 查看答案