Unit 4 Astronomy the science of the stars.doc

Unit 4 Astronomy: the science of the stars一、基础测试A. 单词拼写请根据汉语提示或首字母写出单词的正确形式1. What would happen if there were no _ (大气层).2. A bomb was _ (爆炸) at a gas station this morning and five persons were killed.3. The government is encouraging the _ (发展) of small businesses.4. Fruit juices can be _ (有害) to childrens teeth.5. Because of the _ (到场) of the famous football star, everyone cheered up.6. Without o_ animals cant live.7. The disease is s_ quickly, so we must do what we can to stop it.8. They were d_ at the result of the game, so they looked unhappy.9. I didnt want to tell him the secret but he f_ me to do so.10. At first she didnt like English but g_ she is interested in it.B. 句型转换根据A句句义，完成B 句,使句义相同或相近。11. A: Nobody knew that it was going to be different from other planets which go round the sun. B: Nobody knew that it was going to be different from other planets _ _the sun.12. A: They multiplied and filled the first oceans and seas with oxygen. B: They multiplied and the first oceans and seas were _ _oxygen.13. A: Others, called amphibians, were able to live on land as well as in the sea. B: Others, _ _called amphibians, were able to live on land as well as in the sea.14. A: Last month I was lucky enough to have a chance to make a trip into space. B: Last month I was _ _ that I had a chance to make a trip into space.15. A: We visited the moon in our spaceship. B: We visited the moon _ _.C. 完成句子16. You will understand my kindness _ _ (最终).17. What he said was quite _ _ _ _ _ (与他做的不一样).18. You are not allowed _ _ _ _ (在这里踢足球).19. The boy is _ the hole _ _ (正往洞里灌沙子).20. When the war _ _ (爆发), he was working in the navy.二、单项填空 21. This painting is splendid, but _ we actually need it is a different matter.A. thatB. what C. whether D. how22. you like it or not, youll have to give up smoking.A. If B. Whether C. How D. Why23. They dont allow _ here. That is to say, we are not allowed _ here.A. to smoke; to smoke B. smoking; smokingC. to smoke; smoking D. smoking; to smoke24. All these gifts must be mailed immediately so as to be received _Christmas. A. after B. in time C. in time for D. in no time25. The way he did it was different _ we were used to. A. in which B. in what C. from what D. from which26. All made possible for China to succeed in carrying on its reforms and open-door policy.A. what happened; it B. what happened; thatC. that happened; it D. that happened; that27. _ what you said, he got very angry. A. Because B. Because of C. Since D. For28. People will be encouraged to eat healthy food, _ and to drink less beer and wine. A. not to smoke B. dont smoke C. not smoke D. not smoking 29. The teacher as well as a number of students _ to attend the party yesterday. A. were asked B. was asked C. were asking D. was asking30. We need to improve the of our new range of products.A. look B. expression C. appearance D. outlook31. Unless you _ nature, you are sure to be punished by nature.A. go againstB. go across C. go byD. go over32. Some policemen were sent there to _ the villagers _ down the trees.A. keep; cutting B. prevent; cuttingC. prevent; to cut D. stop; to cut33. I dont believe that older people are always wiser. It _ the person and what kind of experiences he or she has had. A. requires of B. results fromC. depends on D. belongs to34. Its no use trying to solve problems _. Talks are the only solution. A. by the way of war B. by force C. by communication D. by means35. _ she is out of a job, Lucy has been considering going back to school, but she hasnt decided yet. A. Now that B. Even thoughC. No matter howD. Except thatA English is fast becoming the language of science around the world, but what is its future among everyday speakers? One expert points out that the percentage(比率) of native English speakers is declining(降低) globally while the languages of other rapidly growing regions are being spoken by increasing numbers of people. But English will continue to remain widespread and important. However, British language scholar David Graddol says English will probably drop in dominance(主导) by the middle of this century to rank, after Chinese, about equally with Arabic, Hindi, and Urdu. “The number of people speaking English as a first language continues to rise, but it isnt rising nearly as fast as the numbers of many other languages around the world, simply because the main population group has been largely in the less developed countries where languages other than English have been spoken,” he says. In a recent article in the journal Science, Mr. Graddol noted that three languages that are not near the top of the list of the most widely spoken now might be there soon. These are Bengali, Tamil, and Malay, spoken in south and Southeast Asia. David Crystal, the author of the Cambridge Encyclopedia of the English Language, says about 1.5 billion of the worlds six billion people speak it as a second tongue compared to the 400 million native speakers. But another expert on the English language says Mr. Graddol underestimates (低估) the future of its dominance. “Nobody quite knows whats going to happen because no language has been in this position before. But all the evidence (证据) suggests that the English language snowball is rolling down a hill and is getting faster,” he said. 36. In David Graddols opinion, English will _. A. remain widespread and important B. be more important than any other language C. lose its dominant position D. die away in the near future37. The underlined sentence in the last paragraph implies that _. A. snowballs will roll down faster than language balls B. the English language snowball is rolling down faster than any time in the past C. English language will soon drop in dominance D. more and more language users will choose English38. How many experts does the passage mention who express their ideas about the future of English? A. 2. B. 3. C. 4. D. 5.39. According to David Graddol, which of the following will possibly be one of the languages that will be mostwidely spoken? A. Malay. B. Arabic. C. Urdu. D. German.40. What should be the best title for the passage? A. English Remaining the Dominant Position B. The Future of English? Who Knows? C. Opinions from Different Experts D. The English Language Snowball Rolling Down参考答案及重点解析一、基础测试A. 单词拼写1. atmosphere 2. exploded 3. development 4. harmful 5. presence 6. oxygen 7. spreading 8.disappointed 9. forced 10. gradually B. 句型转换11. going round 12. filled with 13. which were 14. so lucky 15. by spaceshipC. 完成句子16. in time 17. different from what he did 18. to play football here 19. filling, with sand 20. broke out 二、单项填空2125 CBDCC 2630 CBABC 3135 CBCBA重点解析：21. 选择名词性从句的连接词要从一下两点入手：1)连接词是否有词义；2)连接词是否在从句中担当句子成分。题干中的主语从句中，主语、谓语和宾语齐全，故排除B项；从句意来看，不需要方式状语，排除D项；从句意来看，该连接词表示“是否”的意思，故选C项。22. whether引导让步状语从句。23. allow后接动名词作宾语；接动词不定式作宾语补足语。故选D。24. in time (最终；及时)和in no time (立刻；马上)后不可接名词；after不符合句意和逻辑；in time for sth /to do