There are two factors which determine an individuals 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.
The importance of environment in determining an individuals intelligence can be 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. Marks I. Q. 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.
21. This selection can best be titled
A. Measuring Your Intelligence
B. Intelligence and Environment
C. The Case of Peter and Mark
D. How the Brain Influences Intelligence
22. 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 persons intelligence
D. persons having identical brains will have roughly the same intelligence
23. According to the passage, the average I. Q. is
A. 85 .
B. 100
C. 110
D. 125
24. The case history of the twins appears to support the conclusion that
A. individuals with identical brains seldom test at the same level
B. an individuals intelligence is determined only by his environment
C. lack of opportunity blocks the growth of intelligence
D. changes of environment produce changes in the structure of the brain
25. This passage suggests that an individuals I. Q.
A. can be predicted at birth
B. stays the same throughout his life
C. can be increased by education
D. is determined by his childhood
参考答案:21. B 22. C 23. B 24. C 25. C
应该密切关注身体对跑鞋的选择意见
初二年级英语暑期作业复习题
研究称半数英国青年或多或少有点基
央行新增“MLF”操作
初二英语暑假作业答案
“手机雨伞”:雨中手机党必备
国内外毒舌女王大PK
浪漫潜水求婚:你问我爱你有多“深”
2015初二年级英语下册暑假作业答案
欧美新生儿取名流行使用美剧角色名
香港将为内地游客建临时购物城
初二英语暑假作业练习
初二年级英语暑期练习
7月份中国房价跌势放缓
2015八年级英语暑假作业推荐
2015年初三年级英语暑假作业
八年级英语暑期作业指导练习
2015最新八年级英语暑假生活指导作业
外研版八年级英语暑假作业答案2015
初二暑假生活英语指导答案
佳士得打造首批便携私人岛屿
八年级第二学期英语暑假作业推荐
新入职场的“零阻力员工”
贝索斯发员工邮件 为亚马逊管理风格辩驳
必备八年级英语暑期作业练习题
英考生申请上霍格沃茨 招生办诙谐拒绝
凡尔赛宫将改建酒店创收
初二年级英语必备暑假作业答案外研版
社交媒体时代的“社交破产”
冬奥会为北京带来更多超级酒店
不限 |
英语教案 |
英语课件 |
英语试题 |
不限 |
不限 |
上册 |
下册 |
不限 |