1.　　　 The example shown in the third paragraph tells us that _____

A.　　　　 the one who was sent to college is more clever than another twin

B.　　　　 we can control people’s intelligence freely

C.　　　　 birth doesn’t play a role in developing of intelligence

D.　　　　 environment plays an important role in affecting people’s intelligence

4.What is the main purpose of writing this passage?

A.　　 Expressing the writer’s idea that gene technology will benefit people

B.　　　 　Telling people the advantages of gene technology

C.　　　 Telling the readers that gene technology will not benefit people

D.　　 　Explaining that gene technology will also do harm to the humanity

Passage 53 The genetic and environmental influence on man’s intelligence

Although a man may be born clever, his intelligence need also to be further developed. To some extent our intelligence is given 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, but whether or not he reaches those limits will depend on his environment.

It is easy to show that intelligence is to some extent something we are born with. The closer the blood relationship between two people, the closer they are likely to be in intelligence. Thus if we take two unrelated people at random from the population, it is likely that their degrees of intelligence will be completely different. If on the other hand we take two identical twins 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 identical twins and put them in different environments. We might send one, for example, to a university and the other to a factory where the work is boring. We would soon find differences in intelligence developing and indicates that environment as well as birth plays a part. 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 degrees of intelligence.

3.In what way gene technology can help to treat hereditary diseases?

A.　　　 Using gene technology, people with hereditary diseases can have more living days.

B.　　　　 Using gene technology, scientist finds the wrong gene and corrects it.

C.　　　　 Using gene technology, human babies can be cloned.

D.　　　 Doctors can cure cancer and heart disease with the help of gene technology.

2.What’s the main idea of the third paragraph?

A.　　 How gene technology can be applied in the field of treating hereditary diseases.

B.　　　 Gene technology can be used to clone human babies.

C.　　　 Gene technology can help people to give birth of a baby.

D.　　 Gene technology can help the English imperial family out

1. What does “these two killers” in the second paragraph refer to ?

A.　　 gene technology and another treatment of the two diseases.

B.　　　 The two murderers who killed the cloned baby

C.　　　 The two diseases of cancer and heart disease

D.　　 Hereditary diseases and cancer

2.　　　　 What should the college students do to take advantage of science except _____

A.　　 studying hard

B.　　　 serving the society with knowledge

C.　　　 putting what we have learned into practice

D.　　 taking physical exercise

Passage 52　 Gene technology to benefit people

Among all the fast growing science and technology, the research of human genes, or biological engineering as people call it, is drawing more and more attention now. Sometimes it is a hot topic discussed by people.

The greatest thing that gene technology can do is to cure serious diseases that doctors at present can almost do nothing with, such as cancer and heart disease. Every year, millions of people are murdered by these two killers. And to date, doctors have not found an effective way to cure them. But if the gene technology is applied, not only these two diseases can be cured completely, bringing happiness and more living days to the patients, but also the great amount of money people spend on curing their diseases can be saved, therefore it benefits the economy as well. In addition, human life span(寿命) can be prolonged.

Gene technology can help people to give birth to more healthy and clever children. Some families, with the English imperial family being a good example, have hereditary diseases. This means their children will for sure have the family disease, which is a great trouble for these families. In the past, doctors could do nothing about hereditary diseases. But gene technology can solve this problem perfectly. The scientist just need to find the wrong gene and correct it, and a healthy child will be born.

Some people are worrying that the gene research can be used to manufacture human beings in large quantities. In the past few years, scientists have succeeded in cloning a sheep, therefore these people predict that human babies would soon be cloned. But I believe cloned babies will not come out in large quantities, for most couples in the world can have babies in very normal way. Of course, the governments must take care to control gene technology.

1.　　　　 Which can’t show the relation between science and daily life? _________

A.　　 We can use computers to help our work

B.　　　 We can travel by plane.

C.　　　 We can play basketball in a sport center.

D.　　 We can enjoy ourselves by watching TV.

5．　 选项中D 与decentralized同义。

4．　 网络中数据交换的规则称为：PROTOCOL---协议。

3．　 题干中PULSES 意思是：“脉冲”