2019年12月大学英语四级阅读练习题：智力的决定因素

1、2019年12月大学英语四级阅读练习题：智力的决定因素2018年12月大学英语四级阅读200篇汇总There are two factors which determine an individualsintelligence. The first is the sort of brain he is born with. Human brainsdiffer considerably , some being more capable than others. But nomatter how good a brain he has to begin with, an individual

2、will have alow order of intelligence unless he has opportunities to learn. So thesecond factor is what happens to the individualthe sort ofenvironment inwhich 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

3、 thelevel of intelligence of which he is capable.The importance of environment in determining an individualsintelligence can be demonstrated by the case history of the identicaltwins, Peter and Mark. Being identical, the twins had identical brains atbirth, and their growth processes were the same. W

4、hen the twins werethree months old, their parents died, and they were placed in separatefoster（抚养）homes. Peter was raised by parents of low intelligence inan isolated community with poor educational opportunities. Mark wasreared in the home of well-to-do parents who had been to college. Hewas read t

5、o as a child, sent to good schools, and given everyopportunity to be stimulated intellectually. This environmental differencecontinued until the twins were in their late teens, when theywere given tests to measure their intelligence. Marks I. Q. was 125,twenty-five points higher than the average and

6、 fully forty points higher不利）than his identical brother. Given equal opportunities, the twins, havingidentical brains, would have tested at roughly the same level.21. This selection can best be titled_.A. Measuring Your Intelligence B. Intelligence and EnvironmentC. The Case of Peter and Mark D. How

7、 the Brain InfluencesIntelligence22. The best statement of the main idea of this passage is that .A. human brains differ considerablyB. the brain a person is born with is important in determining hisintelligenceC. environment is crucial in determining a persons intelligenceD. persons having identica

8、l brains will have roughly the sameintelligence23. According to the passage, the average I. Q. is.A. 85 . B. 100C. 110 D. 12524. The case history of the twins appears to support theconclusion that_ .A. individuals with identical brains seldom test at the same levelB. an individuals intelligence is determined only by hisenvironmentC. lack of opportunity blocks the growth of intelligenceD. changes of environment produce changes in the structure ofthe brain25. This passage suggests that an individuals I. Q.A. can be predicted at bi