Unit 2 Cloning
I. 单项填空    
从A、B、C、D四个选项中，选出可以填入空白处的最佳选项。
1. They have no idea at all ________.
A. where he has gone B. where did he go
C. which place has he gone D. where has he gone
2. Your composition is _________to your brother’s.
A. the same B. identical C. different D. equal
3. _______news came ________an unknown disease was spreading in the area .
A. Disturbing / that B. Disturbed / which
C. Disturbing / which D. Disturbed / what
4. He was _________down for several days after he heard the bad news .
A. broken B. cast C. cut D. discouraged
5. ______ what we have now, we can’t afford so large a house.
A. In B. At C. With D. Near
6. Opening the book, she found in it a white, plain envelope with her name ______ on it.
A. to print B. printed C. printing D. print
7. Seeing your picture, I couldn’t resist _____ the days _____ we spent together.
A. to think of; when B. to think of; which
C. thinking of; which D. thinking of; when
8. Are you suggesting that I _____ too old for the job?
A. am B. should be C. be D. was
9. His hard work paid ____ when he got the result.
A. off B. over C. out D. back
10. He is a cutler(刀具商)--_____, a man who sells knives and sharp tools.
A. in conclusion B. in general C. what’s more D. that is to say
11. One of the men held the view ____ the book said was right.
A. what that    B. what C. that    D. that  what
12. We thought of asking him for help, but we were ______ to get in touch with him at that time.
A. happy B. anxious C. easy D. unable
13. He’s _______ to fail the exam if he doesn’t do any revision.
A. near B. fit C. bound D. easy
14. Every possible means _______to prevent the air pollution, but the sky is still not clear.
A. are being used B. have been used
C. has been used D. had been used
15. ---- Catherine, I have cleaned the room for you.
----- Thanks, you __________it . I could manage it myself.
A. needn’t do B. needn’t have done
C. mustn’t do D. shouldn’t have done

II. 单词拼写。
1. The brothers d_____ widely in their tastes.
2. The question is quite s_________ , while that one is much more complicated.
3. She r_______ from the competition after pulling a leg muscle.
4. Smoking is f_____ in public places.
5. His suggestion sounds quite r_________ to most of us.
6. The film was a _____ (商业的) success.
7. I’d like to come, too, if you have no _____(反对).
8. He ______ (仅仅)asked us our names.
9. There were strong ______ (争论) for and against the plan.
10. He always managed to ______(得到)what he wanted.

III. 完形填空
In the past, scientists have produced exact genetic copies of sheep and a few other animals. They 1 these clones from a single cell of an adult animal.
Recently, a private group of scientists has announced 2 to make an exact copy of a human being. Doctor Zavos, an American member of the team, says he and 3 will soon begin to clone humans and they hope to produce the world’s forst cloned 4 within the next two years.
Doctor Zavos says the new 5 group plans to offer human cloning to women unable to become 6 and produce children. The 7 would be similar to that used to clone animals. It would 8 clearing genetic material from a woman’s egg. Doctors then would 9 genetic material from the woman’s husband into the egg 10 putting it in the women’s uterus(子宫).
Doctor Zavos says his 11 plans to do its work in a country near the Mediterranean Sea, but he did not 12 the country. He days an Italian reproductive expert, Severino Antinori, is 13 the team. Doctor Antinori has made 14 efforts to help many older women become pregnant. He is known for 15 pregnancies in women as old as sixty.
Many medical experts and other groups 16 the idea of cloning humans. Several doctors
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