【題目】Directions: Complete the following passage by using the sentences in the box. Each sentence can only be used once. Note that there are two sentences more than you need.

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. 【1】.

The greatest thing that gene technology can do is to cure serious diseases that doctors at present can almost do nothing about, such as cancer and heart disease. 【2】. And to date, doctors have not found an effective way to cure them. But if gene technology is applied, not only can these two diseases be cured completely, bringing happiness and more living days to patients, but the great amount of money people spend on treating their diseases can also be saved, therefore it benefits the economy as well. In addition, human life spans (壽命) can be prolonged.

【3】. Some families, with the English imperial family being a good example, have

hereditary ( 遺 傳 的 ) 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. The scientist just needs to find the wrong gene and correct it, and a healthy child will be born.

【4】. 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 a very normal way. Of course, the government must take care to regulate gene technology.

A.Every year, millions of people are murdered by these two killers.

B.Gene technology can help people to give birth to healthy and clever children.

C.Doctors can cure cancer and heart disease with the help of gene technlogy.

D.Many people, however, are worried that gene technology can be used to manufacture human beings in large quantities.

E.Sometimes it is a hot topic discussed by people.

F.Using gene technology, people with heredity diseases can have more living days.

【答案】

【1】E

【2】A

【3】B

【4】D

【解析】

這是一篇說明文。在所有快速發(fā)展的科學(xué)技術(shù)中，人類基因的研究，或人們所說的生物工程，現(xiàn)在越來越受到關(guān)注。文章介紹人類基因的發(fā)展。

【1】

根據(jù)上文提示“在所有快速發(fā)展的科學(xué)技術(shù)中，人類基因的研究，或人們所說的生物工程，現(xiàn)在越來越受到關(guān)注。”承接上文，E項(xiàng)Sometimes it is a hot topic discussed by people.（有時(shí)它是人們討論的熱門話題。）切題。故選E。

【2】

根據(jù)上文提示“基因技術(shù)所能做的最偉大的事情就是治愈目前醫(yī)生幾乎無能為力的嚴(yán)重疾病，比如癌癥和心臟病。”再根據(jù)下文提示“到目前為止，醫(yī)生們還沒有找到有效的治療方法。”承接上下文，A項(xiàng)Every year, millions of people are murdered by these two killers.（每年都有數(shù)百萬人被這兩個殺手殺害。）切題。故選A。

【3】

根據(jù)下文提示“有些家族，比如英國皇室就是一個很好的例子遺傳性疾病的診斷。”承接下文，B項(xiàng)Gene technology can help people to give birth to healthy and clever children.（基因技術(shù)可以幫助人們生下健康聰明的孩子。）切題。故選B。

【4】

根據(jù)下文提示“在過去的幾年里，科學(xué)家已經(jīng)成功克隆了一只羊，因此這些人預(yù)測人類嬰兒很快就會被克隆。”承接下文，D項(xiàng)Many people, however, are worried that gene technology can be used to manufacture human beings in large quantities.（然而，許多人擔(dān)心基因技術(shù)會被用來大量制造人類。）切題。故選D。

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