人教版高中英语选修八Unit 2 Cloning

高中英语学习材料

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选修8 Unit 2 Cloning

基础操练 Ⅰ. 单词拼写

1．It is (合情理的) to assume that he knew beforehand that this would happen. 2．20 years ago, because of the (保守的) views of her parents, she got married to a man against her will.

3．When the football match was over, he lay on the playground, 不能) to move. 4．He was cast down when the (程序) he had used to produce a mammal clone ended in failure.

5．I didn’t know anything about any of the books so my choice was quite (任意的). 6． Mr Zhang, who had completed 40 years of teaching, (退休) from teaching last month because of ill health.

7．The old lady gave away an impressive collection of oil paintings she had (积累) to the national art gallery.

8． In Britain education is (义务的) for all children between the ages of 5 and 16. 9．Despite the fact that he’s fed up with too many rules and (规章), he has to obey all of them.

10. Her books have gained in (受欢迎) with teenagers in recent years. 11. She couldn’t (忍住) laughing when she saw the young man. 12. To say that this law will not affect our profits is to talk (胡说).

13. The doctor explained that this was a (复杂的) procedure that he should consider carefully.

14. It is reported that scientists have achieved a major (突破) in the treatment of this type of cancer.

15. The old painting was damaged in the flood and had to be (修复).

16. I knocked at the door loudly in the (徒劳的) hope that someone might answer. 17. After she’d got over (=overcome) her (开始的) shyness, she became very friendly. 18. The film was highly praised, but was not a (商业的) success. 19. The President returned to work (不久) after his operation. 20. Your report is good and I’ve made only a few small (修改) to it. Ⅱ. 用方框内所给短语的适当形式填空

pay off; cast…down; be bound to; strike…into one’s heart; from time to time; have a great impact on; in poor condition; in favour of; bring…back to life; owe…to 21. If you take a job as a journalist, it goes without saying (不言而喻) that __________________ you’ll have to work at weekends.

22. The good news, however, ___________ fear of the enemies and

they immediately fled in all directions.

23. I _______________________ all my debts by the end of next year.

24. He felt a bit ______________________ when he failed his final physics exam. 25. He turned down a university appointment _______________________ a political career. 26. There _____________________ be changes when the new system is introduced next year. 27. The leaning tower with a history of hundreds of years is _________________________ and badly needs repairing.

28. People in the flood-stricken areas said that they ________________ a great deal _____________ the PLA soldiers for their rescue work.

29. The computer, as is known to all, has __________________________ modern life.

30. Don’t bother yourself about cloning my pet cat. I won’t expect to ________ it . Ⅲ. 完成句子

31. Cloning scientists ___________________________________ that Dolly’s illnesses were more

appropriate to a much older animal. (cast)

研究克隆的科学家们很沮丧地发现，多莉得的病更容易发生在年老的羊身上。

32．Scientists hold the belief ___________________________________ many important scientific

breakthroughs and medical treatments. (lead)

科学家们认为克隆可能会导致许多重要的科学上的突破和疾病的治疗。

33．Other animals will survive and pass on the ability ___________________________________ to the

next generation. (resist)

另外一些动物将会存活下来，并且把抵抗那种疾病的能力传给下一代。

34．________________________ what we know now, you cannot clone animals that have been extinct

longer than 10,000 years. (base)

根据我们现在所知，你不可能克隆那些已经绝种了一万年以上的动物。

35．At the meeting they raised an objection to ___________________________________. (treat) 在会上他们对受到不公平对待提出了异议。

36．His children ___________________________________ sweets because he didn’t want their teeth

to be ruined. (forbid)

他不准孩子们吃糖果，因为他不想他们的牙齿受损坏。

37．___________________________________ is the fact that he seems to take no interest in his work.

(bother)

最使我伤脑筋的是，他似乎对自己的工作毫无兴趣。

38．__________________________ that you might like some coffee, so I’ve brought some up. (strike)

我突然想到你也许想喝点咖啡，于是就拿了一些来。

39．___________________________________ in the market research, what people want is high quality,

not just low prices. (show)

正如市场调查所显示的那样，人们需要的是高质量，而不仅仅是低价格。

40． Then that Dolly had become seriously ill. (come)

接着传来了多莉病重的令人不安的消息。 提升练习 IV. 语法填空

阅读下面材料，在空白处填入适当的内容（不多于3个单词）或括号内单词的正确形式。

Discoveries about the nature of DNA in the 1940s made 41. ________ possible for cloning

experiments to progress. In 1944 the discovery 42. ________ genetic information for each cell was kept in the cell’s DNA gave scientists new ways to attempt 43. ________ (clone) animals.

The first cloned animal was a tadpole 44. ________ was cloned in 1952. Thomas J. King and Robert W. Briggs believed, based on their clones, that young cells were more viable (可生长发育的) for the cloning process than adult cells.

The next successful cloning experiments also resulted 45. ________ cloned frogs. John Gurdon cloned South African frogs in 1962. His experiments proved that the previous theory that adult cells were 46. ________ (able) to be used in the cloning process was wrong. From 1962 to 1965, more frog clones were created from adult frog cells.

While animal cloning had been the focus of cloning experiments, the 1960s also saw 47.________ types of cloning. In 1964 F. C. Steward 48. ________ (undertake) an experiment in which he took an adult cell from a carrot plant and successfully cloned the plant.

So far more than 20 different animals, 49. ________ (include) dogs, cats, and the famous Dolly, have been cloned, 50. ________ human cloning research has been forbidden in many countries. V. 写作

最近你班进行了一次主题为Should human cloning be allowed的讨论。请你根据表格中的提示用英语写一篇短文，介绍讨论的情况，并谈谈自己的看法，然后发表在你校英语网站上。

1. 能够帮助不能生育的人拥有自己的孩子； 支持 2. 可以维持或挽救人的生命。 1. 有悖于伦理与道德； 反对 2. 容易被邪恶头目或恐怖分子利用。

注意：1. 词数100左右（开头已给出，但不计入总词数）；

2. 可适当增加细节，以使行文连贯；

3. 参考词汇： 伦理ethic 道德morality

Recently our class has had a discussion on whether human cloning should be allowed.

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