10.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's 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(壽命)can be prolonged.
Gene technology can help people to give birth to more healthy and clever children.Some families,with the English imperial(皇帝的)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 perfectly.Scientists 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(生產(chǎn))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.
60.What does"these two killers"in the second paragraph refer to?C
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.
61.What's the main idea of the third paragraph?C
A.Gene technology can help people to give birth to a baby.
B.Gene technology can be used to clone human babies.
C.How gene technology can be used to treat hereditary diseases.
D.Gene technology can solve all the problems of the English imperial family.
62.In what way can gene technology help to treat hereditary diseases?B
A.Gene technology helps people with hereditary diseases to live longer.
B.Using gene technology,scientists find the wrong gene and correct it.
C.Using gene technology,human babies can be cloned.
D.Doctors can cure cancer and heart disease with the help of gene technology.
63.What is the main purpose of writing this passage?A
A.Expressing the writer's idea that gene technology will benefit people.
B.Telling people the advantages and disadvantages 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.
分析 本文為科教類說明文,文章介紹了基因兩大好處:治療目前醫(yī)生束手無策的嚴(yán)重的疾病如癌癥和心臟病; 找出家族基因中的問題基因并糾正,生出健康的寶寶;有人擔(dān)心基因技術(shù)會導(dǎo)致大量的基因?qū)殞毜某霈F(xiàn),但是作者認(rèn)為這種現(xiàn)象不會有,因為大多數(shù)人都能夠以正常的方式生孩子;但是政府還是要小心控制基因技術(shù).
解答 60.答案是C.細(xì)節(jié)理解題.上文例舉了兩種嚴(yán)重的醫(yī)生束手無策的疾病"such as cancer and heart disease",緊接著下文就題到了"Every year,millions of people are murdered by these two killers.(每年這兩大殺手謀殺了上百萬的人們)",由此推斷兩大殺手指的是cancer和heart disease,故選C.
61.答案是C.段落大意題.文章首句"Gene technology can help people to give birth to more healthy and clever children.幫助人們生育健康聰明的孩子"為該段的主題句,下文展開說明如何克服家族遺傳,生出健康的孩子;故選C.
62.答案是B.細(xì)節(jié)理解題;根據(jù)第三段中".Scientists just need to find the wrong gene and correct it,and a healthy child will be born.(找到問題基因并糾正,這樣就能生出健康的孩子),故選B."
63.答案是A.主旨大意題;讀全文可知文章主要講述了基因技術(shù)對人類的好處并對存在的擔(dān)憂進行說明,故選A.
點評 本文介紹了基因技術(shù)的好處,同時對人們的擔(dān)憂進行解釋.抓住每一段的要點可以有助于整體理解文章.文章主語考查細(xì)節(jié)題和主旨大意題,在做細(xì)節(jié)題時根據(jù)題干定位細(xì)節(jié),在語境中正確理解原句,然后對照選項做出合理的判斷.對于主旨大意的判斷要把握文章整體,避免以偏概全.