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 （皇家的） 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．

8．What does"them"in the second paragraph refer to？

A．People with cancer or heart disease．

B．Millions of people with serious diseases．

C．Some diseases doctors can do nothing with．

D．The two illnesses of cancer and heart disease

9．What can gene technology do according to paragraph three？

A．It can help the English imperial family out．

B．It can be used to clone human babies．

C．It can help people to give birth of a baby．

D．It is likely to treat hereditary diseases．

10．What are people worried about according to the passage？

A．Human babies may be cloned in a large scale．

B．Healthy human babies will soon be cloned．

C．Scientists may well find the wrong genes．

D．The government may not control gene techs．

11．This passage is mainly written to

A．show gene technology will benefit people

B．show gene technology will do harm as well

C．tell that gene technology is a hot topic

D．tell that gene technology is growing fast．

　　

答案

8-11 DDAA

　　

解析：

分析 本文介绍了基因技术，详细讲述了基因技术的好处．

解答 8．D：细节题：根据上文的such as cancer and heart disease．可知每年造成数百万人死亡的元凶就是癌症和心脏病，故选D．

9．D：推断题：由第三段doctors could do nothing about hereditary diseases．But gene technology can solve this problem perfectly可知，基因可以被应用于治愈医生所不能治疗的家族病．故选D．

10．A：细节题：根据第三段最后一句"The scientist just need to find the wrong gene and correct it，and a healthy child will be born"科学家只需要找到错误的基因和纠正它，和一个健康的孩子将出生，故选A．

11．A：推断题：通读全文可知文章主要讲述了基因技术对人类的好处以及作者的观点．故选A．

点评 本篇文章难点在推理判断题上．推理判断题要以表面文字为前提，以具体事实为依据进行推理，做出判断．这种推理方式比较直接，考生只要弄清事实，即可结合上下文推断出合理的结论．

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