1、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 ch
2、ildrens 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
3、_ 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 m
4、ultiplied 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 mo
5、nth 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
6、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. that B. whatC. whether D. how22. you like it or not, youll have to giv
7、e up smoking.A. If B. WhetherC. 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 timeC. in ti
8、me for D. in no time25. The way he did it was different _ we were used to.A. in which B. in whatC. 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; that2
9、7. _ what you said, he got very angry.A. Because B. Because ofC. Since D. For28. People will be encouraged to eat healthy food, _ and to drink less beer and wine.A. not to smoke B. dont smokeC. not smoke D. not smoking29. The teacher as well as a number of students _ to attend the party yesterday.A.
10、 were asked B. was askedC. were asking D. was asking30. We need to improve the of our new range of products.A. look B. expressionC. appearance D. outlook31. Unless you _ nature, you are sure to be punished by nature.A. go against B. go acrossC. go by D. go over32. Some policemen were sent there to _
11、 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 t
12、o solve problems _. Talks are the only solution.A. by the way of war B. by forceC. 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 how D. Except that三、完形填空 阅读下面短文，掌握大意，然后从 36-55 各题
13、所给的四个选项（A、B 、C 和 D）中，选出最佳答案。When we were children, our grandfathers told us the river was called the Pool that Forgets because when anything falls into it, the pool forgets to send it to the 36 again. One time when we were no longer children and not yet man, we seized a hunting dog and took her to t
14、he Pool that Forgets. We 37 her into the pool, and we all 38 to see her come up. We waited from morning till evening but 39 never came up. We knew that the 40 had forgotten her.But this particular day when we were 41 from the raid （袭击）, everyone had taken a trophy (猎获品 ) 42 my brother. Maybe that wa
15、s why he was talking when we were whispering and why he 43 to sound as though he had no 44 . My brother was forced to walk behind us. That is the position of honour and dishonour. As an honour, the 45 men are placed there to 46 us when we return, but sometimes those who have not shown the strength a
16、re placed there to be laughed at for 47 . I think my brother 48 this, because as we reached the pool, he ran 49 us. He stopped at the 50 to the gray rock above the pool and stood there with 51 trying to look stronger than he was.“Heroes of the Only World!” he shouted, “Watch me. I am not 52 the Pool
17、 that Forgets.”And with those words, he dived and 53 into the pool and we saw nothing more. We stared over edge of the 54 . Our eyes staring into the circle of terror (恐惧) produced by 55 .36. A. surface B. bottom C. bank D. edge37. A. put B. sent C. brought D. threw38. A. decided B. waited C. promis
18、ed D. agreed39. A. he B. it C. she D. they40. A. dog B. pool C. children D. me41. A. setting out B. starting off C. moving on D. returning42. A. besides B. including C. except D. more than43. A. tried B. hoped C. learned D. stopped44. A. worry B. fear C. courage D. wish45. A. strongest B. weakest C.
19、 cleverest D. luckiest46. A. save B. support C. satisfy D. protect47. A. poverty B. mistake C. weakness D. carelessness48. A. understood B. apologized C. guessed D. accepted49. A. behind B. among C. before D. ahead of50. A. surface B. edge C. top D. bottom51. A. a simple B. anger C. pride D. pleasur
20、e52. A. afraid of B. fond of C. proud of D. surprised at53. A. dropped B. swam C. buried D. disappeared54. A. pool B. rock C. my brother D. word55. A. the bunting dog B. my brotherC. the Pool that Forgets D. our grandfathers四、阅读理解 阅读下列短文，从每题所给的四个选项（A、B 、C 或 D）中，选出最佳选项AMemory, they say, is a matter o
21、f practice and exercise. If you have the wish and really made a conscious（自觉的）effort, then you can quite easily improve your ability to remember things. But even if you are successful, there are times when your memory seems to play tricks on you.Sometimes you remember things that really did not happ
22、en. One morning last week, for example, I got up and found that I had left the front door unlocked all night, yet I clearly remember locking it carefully the night before.Memory “trick” work the other way as well. Once in a while you remember not doing something, and then find out that you did. One
23、day last month, for example, I was sitting in a barber（理发师）shop waiting for my turn to get a haircut, and suddenly I realized that I had got a haircut two days before at the barber shop across the street from my office.We always seem to find something funny and amusing（有趣的）in incidents caused by peo
24、ples forgetfulness or absent-mindedness. Stories about absent-minded professors have been told for years, and we never got tired of hearing new ones. Unfortunately, however, absent-mindedness is not always funny. There are times when “trick” of our memory can cause us great trouble.56. If you want t
25、o have a good memory, .A. you should force yourself to remember thingsB. you should make a conscious effort of practice and exerciseC. you should never stop learningD. you should try hard to remember tings57. Which of the following statements is true according to the passage?A. One night the writer
26、forgot to lock the front door.B. One night the writer forgot having locked the front door.C. The writer remembered to lock the door.D. the writer remembered unlocking the front door.58. From the sentence “We never get tired of hearing new ones”, we can infer that .A. we enjoy hearing new stories abo
27、ut absent-mindedness of professorsB. we dont want to know anything more about absent-mindedness of professorsC. we will never get tired of listening to new stories about absent-mindednessD. absent-mindedness happens not only to professors but to many other people59. In the passage, the writer seems
28、to tell you .A. forgetting things is serious and dangerousB. always forgetting things is understandableC. forgetting things at times is naturalD. the way to protect yourself from memory “tricks”60. The best title for this passage is .A. How to Get a Good MemoryB. “Tricks” Of MemoryC. Forgetfulness a
29、nd Absent-mindedness is DangerousD. Get Rid of Absent-mindednessBEverybody has one of those days when everything goes wrong. This is what happened to Harry.He got up one morning very late because he had forgotten to wind up his alarm clock（闹钟）. He tried to shave（刮脸）quickly and cut himself. When he g
30、ot dressed he got blood all over his clean shirt, so he had to find another one. The only other shirt that was clean needed ironing（熨）, so he ironed it. While he was ironing it, there was a knock at the door. It was the man to read the electricity meter（表）. He showed him where the meter was, said go
31、od-bye and found that the iron had burnt a hole in his shirt. So he had to wear the one with the blood on it after all. By this time it was very late, so he decided he couldnt go to work by bus. He telephoned for a taxi to take him to work. The taxi arrived and Harry got in and began to read the new
32、spaper.In another part of the town, a man had killed a woman with a knife and was seen to run away in a taxi. When Harrys taxi stopped outside his office, a policeman happened to be standing there. He saw the blood on Harrys shirt, and took him to the police station. He was kept till 3 oclock in the
33、 afternoon before the police were sure that he was not the man they wanted. When he finally arrived at the office at about four, his boss took a look at him and told him to go away and find another job.61. Harry had .A. a lucky day B. an unlucky dayC. a busy day D. a good day62. Put the following se
34、ntences into correct order according to the passage.a. The man who read the electricity meter came.b. Harry ironed his shirt.c. Harry got blood all over his clean shirt.d. There was a knock at the door.e. Harry wore the shirt with blood on it.A. a, b, c, d, e B. b, a, d, c, eC. b, a, c, d, e D. c, b
35、, d, a, e63. Why did Harry wear the shirt with blood on it?A. He had only one shirt.B. The only other needed ironing.C. The iron had burnt a hole in his clean shirt.D. He cut himself and got blood all over his shirt.64. Harry was taken to the police station because .A. his taxi stopped outside his o
36、ffice and a policeman happened to be thereB. there was blood on his shirt and he was in a taxiC. a man killed a woman with a knifeD. the murderer(杀人犯) was seen to run a away in a taxi65. His boss told him to go away and find another job because .A. he had been kept by the policeB. there was blood on
37、 his shirtC. he was late for workD. he had killed a womanCThe food we eat seems to have a great effect on our health. Although science has made big steps in making food more fit to eat, it has, at the same time, made many foods unfit to eat. Some research has shown that perhaps eighty percent of hum
38、an illness is related to food and forty percent of cancer is related to food as well. That food is related to illness is not a new discovery. In 1945, some researchers realized that things commonly used to keep colour in meats and other food additives（添加剂） caused cancer.Yet, these additives remain i
39、n our food, and it is difficult to know which things on the wrappings（包装） of foods are helpful or harmful. The additives which we eat are not all so direct. Farmers often give penicillin to their animals, and because of this, penicillin has been found in the milk of cows. Sometimes similar tings are
40、 supplied to animals not for their health, but just to make a profit.The farmers are simply trying to fatten the animals in order to get a higher price on the market. Although some countries have tried to control such things, the practice continues.66. According to this passage, we can know .A. perh
41、aps most of human illness is caused by what we eatB. perhaps most kinds of cancer are related to what people eatC. cancer was discovered in 1945D. science has made food unfit to eat67. Things that are used to keep colours in meats are .A. harmful B. useless C. helpless D. dangerous68. All the additi
42、ves .A. are bright and colourlessB. are not bright and colourfulC. have indirect effects on our healthD. have direct effects on our health69. People use additives .A. to make food more unfit to eatB. to improve the colour and taste of the foodC. to change colour of the foodD. to take off the disease
43、s of the food70. Which of the following is not true?A. Some wrappings of food are harmful.B. Farmers try to make more money on the market by fattening their animals.C. “The practice continues” means “things are still going on like that”.D. We neednt take care of what we eat.DAt first, the earths sur
44、face layer（层）was made up of huge blocks of hard, solid rocks. Then slowly, there rocks broke up into smaller and smaller pieces. Finally stones, pebble（卵石）and grains of sand were formed. Many sorts of plants and animals lived and died on the surface of the earth. Their remains mixed up with the ston
45、es, pebbles and formed soil. The outmost layer of the earth is soil.There are many ways in which large pieces of rock break into smaller ones. Wind, water, heat and cold help to break up rocks. When winds blow grains of sand against a large rock for a long time, the softer layers of the rock are slo
46、wly worn away. These leave holes and crack（裂缝）in the rock, which become bigger and finally the rock breaks up into smaller pieces.The moving water of streams and rivers also help to break up rocks. As the water moves along, it carries with it small pieces of rock. These rub the larger ones. Thus, the larger rocks are worn down to smaller pieces.The heat of the sun is also helpful to breaking up rocks. When the sun shines, the rocks become very hot. If
