Unit 3 Under the sea.docx

1、Unit 3 Under the seaUnit 3 Under the sea 第一部分：知识巩固第一题：翻译下列短语，然后用正确的形式将它们填入适当的句子中。短语专练I. 翻译短语 1扯进来：赚得 _ 2在远处 _ 3帮助(摆脱困境) _ 4一群 _ 5正要做某事 _ 6吓死了 _ 7仔细考虑 _ 8意识到 _ 9与此同时，在此期间 _ 10颠倒 _. 用I部分中短语的适当形式填空 11. It was several minutes before I _ what was happening.12. Ill call you when he comes. _ , I must give

2、you something to do.13. The plane turned over and flew _ .14. I made out three figures moving _ .15. _ angry shoppers demanded their money back.16. He was sure there was a great future _ me.17. We need to _ a lot more new business.18. I_ when I saw the horrible face.第二题：单词拼写 1. This material absorbs

3、 the sound, and doesnt r_ it.2. The gate is n_ than a car; well have to walk through.3. Is this garment made of p_ wool, or of wool mixed with nylon(尼龙).4. Hearing that the famous star was about to appear, the fans y_ and cheered.5. We hope to have an income of an average a_ growth rate of 10%.6. Th

4、e escaped prisoner was _ (拉) out of the cave.7. Ginas _ (语言) is so sharp that it will get her into trouble one day.8. He told us some amusing _ (轶事) of the Presidents childhood.9. They had an _ (令人敬畏的) task ahead.10. Human brains contain more than 100 million _ (细胞) per cubic (立方) centimeter.第三题：语法专

5、练1. Please excuse my _ in without _ . A. come; asking B. coming; asking C. to come; being asked D. coming; being asked2. No one can prevent the plan _ . A. from carrying out B. to be carded out C. being carded out D. to carry out3. The bird was lucky that it just missed _ . A. catching B. being caug

6、ht C. to be caught D. to catch4. Most of the artists _ to the party were from South Africa. A. invited B. to invite C. being invited D. had been invited5. _ to sunlight for too much time will do harm to ones skin. A. Exposed B. Having exposed C. Being exposed D. After being exposed6. He has always i

7、nsisted on his _ Dr. Turner instead of Mr. Turner. A. been called B. being called C. having called D. called7. While shopping, people sometimes cant help _ into buying something they dont _ really need. A. to persuade B. persuading C. being persuaded D. be persuaded8. Little Jim should love _ to the

8、 theatre, but his father refused him because it was late. A. to be taken B. to take C. being taken D. taking9. The well was found _ when we got there. A. digging B. to be dug C. to dig D. being dug10. _ in the mountains for a week, the two students were finally saved by the local police. A. Having l

9、ost B. Lost C. Being lost D. Losing 单元测试 考试时间 （60分钟）第一大题 单项选择题（15小题，共30分） 从A、B、C、D 四个选项中，选出可以填入空白处的最佳选项。知识运用I.单项选择1. - Oh, dear! Ive broken a window. -_ . It cant be helped. A. Never mind B. All right C. Thats fine D. No at all2. He felt that he_ the coldness that had grown between them. A. was blam

10、ed to B. was to blame for C. was to be blamed for D. blamed3. It was a time_ the killer whales helped the whalers catch the baleen whales. A. when B. that C. then D. which4. The conference will begin in an hour; _ , lets have a rest. A. on the meantime B. in the meantimes C. in the meantime D. in me

11、anwhile5. Thats the best way to _ into the dangerous area. A. get people get B. stop people to get C. keep people getting D. prevent people getting6. If we would throw ourselves, heart and soul,_ our studies, we should eventually get good result. A. out of B. out C. into D. on7. She was scared _ whe

12、n hearing the sound of explosion. A. to death B. death C. of death D. with death8. Chinese, as most people think, is the most beautiful _ in the world. A. word B. voice C. sound D. tongue9. After the war, a new school building was put up _ there had once been a theatre. A. that B. where C. which D.

13、in which10. A fast food restaurant is the place _ , just as the name suggests, eating is performed quickly. A. which B. where C. there D. what11. We visited the factory _ makes 80 percent of the toys in the city. A. where B. there C. in which D. which12. - Youve left the light on. - Oh, I have. _ an

14、d turn it off. A. Ill go B. Ive gone C. I go D. Im going13. - What are you going to do this afternoon? - I am going to the cinema with some friends. The film _ quite early, so we _ to the bookstore after that. A. finished; are going B. finished; go C. finishes; are going D. finishes; go14. - Did you

15、 have a good time at the party? - Thanks. I appreciated _ to your home. A. to be invited B. being invited C. to have invited D. having invited15. _ from other continents for millions of years, Australia has many plants and animals not found in any other country in the world. A. Being separated B. Ha

16、ving separated C. Having been separated D. To be separated第二大题 完形填空 （20小题， 共30分）Pearls(珍珠) are valuable white gems (宝物) which come from the ocean. Actually they are 16 by oysters, small shell fish that live on the 17 of the ocean.18 oysters（牡蛎，蚝） will make pearls; not all oysters produce them. Oyste

17、rs produce pearls only when they are 19 by sand. If a 20 of sand enters the oysters 21 , the oyster becomes hurt because the 22 grain of sand irritates(使 不适，刺激) the smooth, soft skin of the oyster. The oyster tries to 23 itself by producing a white 24 that looks like milk. The oyster covers the 25 w

18、ith a milky fluid. The fluid protects the oyster. Later the white liquid become 26 . This hardened liquid forms a shell, or bead, around the sand. At this time a pearl is beginning to 27 .The white pearl grows 28 inside the oysters shell. 29 , it takes about six or seven years for the oyster to prod

19、uce a pearl. Not all oysters produce pearls 30 most oysters sometimes take sand into their 31 . Only sand which the oyster cannot get rid of will 32 it. In other words, if an oyster swallows some sand, it will manage to spit it out. If the oyster cannot get rid of the 33 , then it will produce the w

20、hite fluid to 34 itself. Actually, only about one in a thousand oysters will produce a pearl; that is, 35 than one percent.16. A. invented B. brought C. produced D. caused17. A. bottom B. base C. floor D. ground18. A. Only some B. Only few C. All of D. A lot of19. A. harmed B. covered C. destroyed D

21、. injured20. A. piece B. grain C. little D. bit21. A. shell B. body C. eyes D. back22. A. hard B. vivid C. sharp D. rough23. A. prevent B. defend C. protect D. guard24. A. water B. matter C. liquid D. object25. A. injury B. shell C. sand D. pearl26. A. bright B. hard C. strong D. pure27. A. make B.

22、produce C. do D. form28. A. slowly B. fast C. safely D. quickly29. A. Often B. Actually C. Usually D. Sometimes30. A. even though B. in case C. so long as D. only if31. A. bodies B. shells C. bottoms D. caves32. A. destroy B. irritate C. soft D. open33. A. sand B. shell C. milk D. liquid34. A. cover

23、 B. destroy C. produce D. protect35. A. fewer B. more C. less D. smaller第三题 阅读理解（10小题，共20分） AFor years, doctors advised their patients that only thing taking multivitamins (复合维生素) does is to give them expensive urine(尿). After all, true vitamin deficiencies (shortage) are practically unheard of in i

24、ndustrialized countries. Now it seems those doctors may have been wrong. The result of a growing number of studies suggest that even a modes vitamin shortfall can be harmful to your health. Although proof of the benefits of multivitamins is still far from certain, the few dollars you spend on them i

25、s probably a good investment (投资). Or at least thats the argument put forward in the New England Journal of Medicine. Ideally, say Dr. Walter Willett and Dr. Meir Stampfer of Harvard, all vitamin supplements would be evaluated in scientifically rigorous clinical trials (testing period). But those st

26、udies can take a long time and often raise more questions than they answer. At some point, while researchers work on figuring out where the truth lies, it just makes sense to say the potential (潜在的) benefit outweighs the cost.The best evidence to date concerns foliate, one of the Bvitamins. Its been

27、 proved to limit the number of defects in embryos (胚胎), and a recent test found that folate in combination with vitamin B12 and a form of B6 also decreases the reblockage of arteries after surgical repair.The news on vitamin E has been more mixed. Healthy folks who take 400 international units daily

28、 for at least two years appear somewhat less likely to develop heart disease. But when doctors give vitamin E to patients who already have heart disease, the vitamin doesnt seem to help. It may turn out that vitamin E plays a role in prevention but cannot undo serious damage.Despite vitamin Cs great

29、 popularity, consuming large amount (数量) of it still has not been positively linked to any great benefit. The body quickly absorbs(吸收) C and simply excretes (排泄)any excess.The multivitamins question boils down to this: Do you need to wait until all the evidence is in before you take them, or are you

30、 willing to accept that theres enough evidence that they dont hurt and could help?If the latter theres no need to go to extremes and buy the biggest horse pills or the most expensive bottles. Large doses(剂量) can cause trouble, including excessive (extreme) bleeding and nervous system problems.Multivitamins are no substitute for exercise and a balanced die