复合题

Directions: In this section there are reading passages followed by multiple-choice questions. Read the passages and then mark your answers on your answer sheet.

Passage one

Are some people born clever, and others born stupid? Or is intelligence developed by our environment and our experiences? Strangely enough, the answer to both these questions is yes. To some extent our intelligence is given to us at birth, and no amount of special education can make a genius 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 person’ s intelligence are fixed at birth, whether or not he reaches those limits will depend on his environment. This view, now is held by most experts, can be supported in a number of ways.

It is easy to show that intelligence is something that we are born with. The closer the blood relationship between two people, the closer they are likely to be intelligence. Thus if we take two strangers by chance from the population, it seems that their degree of intelligence will be completely different. If, on the other hand, we compare two 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 twins and put them in different environments. We might send one, for example, to a university and the other to a factory separately where the work is boring. We would soon find differences in intelligence developing, and this shows that environment as well as birth plays an important role. This conclusion is also suggested by the fact that people who live in close contact with each other, but who are not related at all are likely to have similar degree of intelligence. 

单选题 Which of these sentences best describes the writer’ s point in Para. 1?
【正确答案】 D
【答案解析】第一段倒数第二句“Therefore, the limits of person’ s intelligence are fixed at birth, whether or not he reaches those limits will depend on his environment. ”说明， 一个人智商的限度在出生时就固定了， 但环境决定他能否达到这些限度， 也就是说智商出生确定， 但会随着环境发展， 故D项为正确答案。
单选题 It is suggested in this passage that _____.
【正确答案】 B
【答案解析】第二段第二句“The closer the blood relationship between two people, the closer they are likely to be intelligence. ” 说明血缘关系越近， 两个人越可能有相近的智商， 也就是说关系近的人通常有相近的智商， 故B项为正确答案。
单选题 Brothers and sisters are likely to _____.
【正确答案】 A
【答案解析】第二段最后一句“Relations like brothers and sisters, parents and children, usually have similar intelligence, and this clearly suggests that intelligence depends on birth. ” 说明诸如兄弟姐妹、 父母子女关系的人会有相近的智商故A项为正确答案。
单选题 In Line 5, Para. 1, the word “surroundings” means_____.
【正确答案】 C
【答案解析】本文第一段说一个人智商的限度在出生时就确定了， 但环境决定他能否达到这些限度， 因此可以推测在无聊的环境中成长的人比在富有和多样化的环境中成长的人智商发展差， 此处的surroundings与前半句中的environment对应， 故C项为正确答案。
单选题 The best title for this article would be _____.
【正确答案】 A
【答案解析】本文第一段说一个人智商的限度在出生时就确定了， 但环境决定他能否达到这些限度， 又在第二、 三段展开说明基因和环境对于智商的影响， 可以看出本文的核心内容是关于智商， 故A项为正确答案。