Unit 2 CloningI. 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 goneB. where did he goC. which place has he goneD. where has he gone2. Your composition is _________to your brother’s.A. the sameB. identicalC. differentD. equal3. _______news came ________an unknown disease was spreading in the area .A. Disturbing / thatB. Disturbed / whichC. Disturbing / whichD. Disturbed / what4. He was _________down for several days after he heard the bad news .A. brokenB. castC. cutD. discouraged5. ______ what we have now, we can’t afford so large a house.A. InB. AtC. WithD. Near6. Opening the book, she found in it a white, plain envelope with her name ______ on it.A. to printB. printedC. printingD. print7. Seeing your picture, I couldn’t resist _____ the days _____ we spent together.A. to think of; whenB. to think of; whichC. thinking of; whichD. thinking of; when8. Are you suggesting that I _____ too old for the job?A. amB. should beC. beD. was9. His hard work paid ____ when he got the result.A. offB. overC. outD. back10. He is a cutler(刀具商)--_____, a man who sells knives and sharp tools.A. in conclusionB. in generalC. what’s moreD. that is to say11. One of the men held the view ____ the book said was right.A. what thatB. whatC. thatD. that what12. We thought of asking him for help, but we were ______ to get in touch with him at thattime.A. happyB. anxiousC. easyD. unable13. He’s _______ to fail the exam if he doesn’t do any revision.A. nearB. fitC. boundD. easy14. Every possible means _______to prevent the air pollution, but the sky is still not clear.A. are being usedB. have been usedC. has been usedD. had been used15. ---- Catherine, I have cleaned the room for you.----- Thanks, you __________it . I could manage it myself.A. needn’t doB. needn’t have doneC. mustn’t doD. shouldn’t have doneII. 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 nexttwo 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 criticized the 17 by Doctor Zavos. They say doctors do not know if cloning humans is 18 or safe. They say it would be irresponsible to 19 to clone a human being. That is because the 20 of success are too small and the risks are too great.1. A. bought B. created C. discovered D. found2. A. plans B. results C. successes D. agreements3. A. another B. othes C. the other D. the others4. A. plant B. animal C. bird D. baby5. A. international B. national C. American D. Italian6. A. successful B. born C. pregnant D. fertile7. A. imagination B. technology C. story D. symbol8. A. involve B. start C. make D. borrow9. A. translate B. place C. take D. make10. A. after B. while C. before D. on11. A. country B. group C. university D. company12. A. call B. found C. name D. consider13. A. managing B. running C. controlling D. leading14. A. high B. total C. great D. wide15. A. successful B. beautiful C. thankful D. sorrowful16. A. take up B. object to C. put up D. bring down17. A. announcement B. program C. subject D. idea18. A. careful B. interesting C. unable D. possible19. A. manage B. refuse C. attempt D. hope20. A. facts B. results C. sizes D. chancesIV. 语法填空仔细阅读下面的短文，短文中有10个空格，请按照短文意思填写相应的词，每空一词。