1、必修 3 Unit 4 Astronomy: the science of the stars.单词拼写 1.Some computers can perform a b (1000 million) computation a second. 答案：billion2.As we all know,t comes from practice,and in turn it must serve practice. 答案：theory3.We know that matter is made up of a . 答案：atoms来4.From space the earth looks like
2、a huge water-covered g . 5.The talk between the two countries went on in a friendly a . 答案：atmosphere6.Eating junk food is (有害的) to the young. 答案：harmful7.With so many problems arising,the (制度)should be improved. 答案：system8.The boy likes studying the universe and he wants to choose (天文学)as his major
3、. 答案：astronomy9.Police say armed robbery is the fastest-rising (暴力的)crime. 答案：violent10.As is well known, fresh air is (基本的)to good health. 答案：fundamentalII.单句填空1Now theres a system _the waste is disposed of using the principles of ecology.2During those four years, he worked day and night, thus_(imp
4、rove) his theory gradually until it was complete.3Sometimes he found _very hard to fall asleep at night, so he went to see the doctor.4What makes me _(puzzle) is why he left the country without telling anyone.5Formaldehyde is used in the building materials, which is as _(harm) a chemical to our heal
5、th as melamine.6_we should work out a plan to deal with the present serious situation is important.7She strongly objected to my mothers marriage. Surprisingly, my mothers reaction_it was rather calm.8The argument remains extremely heated whether there are necessary conditions of _(exist) such as wat
6、er on Mars.9The officer demanded that such things _(prevent) from happening again.10An American plane is reported _(crash) in the Atlantic Ocean with 228 people aboard, the airlines worst disaster in its 75year history答案：1.that 2.improving 3.it 4.puzzled 5.harmful 6that 7.to 8.exsitence 9. (should)
7、be prevented10. to have crashedIII.完成句子1_(为了让她高兴起来), her parents took her to travel around the world. (cheer) 2The couple looked sad. A quarrel _(一定爆发了) between them. (break) 3To beautify our city, a large number of old houses along the street_(已经被拆除) up to the present. (pull) 4Over the years she ha
8、d tried her best _(不去回忆) the terrible memory, but it was not an easy task. (block) 5Do remember _(当心) cars while crossing the street. (watch) Got it.V.短语填空in time be harmful to give birth to in ones turn prevent.from. lay eggs be puzzled about come into existence1.Do you know that crocodiles reprodu
9、ce by ? 答案：laying eggs2.During the car accident, he was to escape from the car without being hurt. 答案：in time3.No matter what will happen,nothing and nobody can the plan being carried out. 答案：prevent; from4.This chemical the environment. 答案：is harmful to5.She lost heart since she failed in the exam.
10、She her future.She had no idea what to do next. 答案： was puzzled about6.Scientists have many theories about how the universe first . 答案：came into existence7.After the second competitor went off the stage, my son went onto the stage to perform . 答案：in his turn 8.He told us happily that his wife would
11、a baby the next week. IV.语法填空 M: Very nice to see you, Joan. This is a wonderful party.W: Nice to see you. Im glad you 1._(enjoy) yourself. Well, would you like something 2._？M: Yes, I would like a glass of white wine. Thank you.W: Youre welcome. Its too bad 3._ your wife couldnt join us tonight. I
12、understand she had to leave town 4._ business in Washington.M: Yes. 5._ (fortunate)!W: So that leaves only you to take care of your son? M: Yeah. We used to have a girl look after him, 6._ now hes old enough to stay home alone.W: 7._ is your son?M: Hes fourteen years old, and now he is at JFK High S
13、chool.W: Wow! Our youngest goes to school there as well. She 8._(graduate) this spring.M: Does your daughter already know what she wants to do after graduation?W: Shes thinking about 9._(go) to Boston University.M: Oh, Boston is 10._ a wonderful city for young people. In fact, I went there just last
14、 weekend. I just stopped for dinner on my way back from a skiing trip.答案：are enjoying to think that on unfortunately butHow old will graduate going such / quite IIV.完成句子1.The other day the cat three kitties.(birth) 几天前这只猫生了三只小猫。答案：gave birth to2.If you fly to Shanghai,you will .(attend) 如果你乘飞机去上海,你就
15、能够及时赶上出席会议。答案：be in time to attend the meeting3.Now it is the room.(turn) 现在轮到我们打扫房间。答案：our turn to clean4.The polluted water can .(harmful) 污染的水会对环境造成很大的危害。答案：be very harmful to the environment5.His father work in another city.(prevent) 他父亲阻止他去另一个城市工作。答案：prevented him from going to6.No one knows wh
16、en such a custom first .(existence) 没有人知道这一风俗首先是什么时候开始存在的。答案：came into existence7.My parents .(as well as) 我的父母和我的哥哥都喜欢旅行。答案：as well as my brother enjoy travelling8.Whether the couple will go abroad .(remain) 这对夫妇是否要到国外去仍拭目以待。答案：remains to be seen9. ,it will be snowy today.(according) 据广播报道,今天有雪。答案：
17、According to the radio10.You by seven oclock at the latest tomorrow.(be to) 你们明天一定要在最迟不过 7点钟到这里。答案：are to be here.精彩回顾下面一段文章是课文原文的浓缩,仔细阅读,根据课文内容将其补充完整,并背诵。The origin of life on the earth is an interesting question. It was a widely accepted 1. that the universe began with a “Big Bang”, after which th
18、e earth was still just 2. .Between 4.5 and 3.8 billion years ago it settled into a solid 3. .The earth was very 4. and exploded loudly with fire and rock. They were in time to produce carbon dioxide, nitrogen, water vapour and other gases, which were to make the earths 5. .Then as the earth cooled d
19、own, water appeared, which was 6.to the development of life. Later, plants appeared, providing 7. for the oceans and seas, in which some animals appeared. Then green plants began to grow on land, and land animals ,forests, reptiles, and huge animals such as dinosaurs appeared. Dinosaurs 8. made the
20、rise of mammals possible. After human beings 9. ,they put lots of carbon dioxide into the atmosphere,10. heat from escaping from the earth into space. Because of it, life on the earth is in danger. Thus, measures must be taken to stop it. 答案：1.theory 2.a cloud of dust 3.globe 4.violent5.atmosphere 6
21、.fundamental 7.oxygen 8.disappearance 9.came into being 10.preventing阅读理解What science fiction(story) once told about other worlds far away is now a fact.Astronomers(experts at the science of the universe)prove another solar(of the sun)system like ours with some planets in the constellation Andromeda
22、(仙女座).Geoffrey Marcy is a professor of astronomy and physics at San Francisco State University and says, “What we have found now, for the first time ever, is indeed a fully-grown system of planets around the star Upsilon Andromeda .It appears to have three planets, one close in, one at a middle dist
23、ance, and one farther out. The star is slightly larger than our sun. The planets are huge, like our Jupiter(木星).”Marcys partner in this research, Debra Fischer, describes the solar system, “Here are the inner planet that goes around every 46 days, the middle planet that goes around every 242 days, a
24、nd then the outer planet that goes around every three and a half to four years.”Astronomically, its not far away,44 light years. The sun of that solar system, Upsilon Andromeda, is so near and bright that it can be seen by using no equipment during summer and fall.For twelve years astronomers search
25、ed the skies in the belief that if our sun has planets around it, surely others do, too. Geoffrey Marcy says, “And then starting three and a half years ago, we began finding for the first time planets singly, one planet here around one star.”“When I look up at the stars now at night, I can imagine e
26、asily that every one of them has planets around them,” says Debra Fischer.It was a tremble(shaking)in the star that led Marcy to the planets.“The star rocks around due to the gravity of the planet as a dog owner gets pulled around by a little dog.”Can they support life? We dont know, because present
27、 technology is not advanced enough to determine what the planets are made of. That, Marcy says, is astronomys next challenge.1.Whats the relation between Andromeda(A),Upsilon Andromeda system(U)and the mentioned three planets(P)?答案：B 2.According to Debra Fischer,in the new solar system, . A.the fart
28、her a planet is from the star,the longer it takes to go around the starB.the larger a planet is,the shorter it takes to go around the starC.it takes all the planets around three and a half to four years to go around the starD.the planets move around the star at the same speed解析：推理判断题。根据天文常识及本文所述,任何行
29、星的卫星的运转周期不可能是一致的,越是远离行星,一般运转周期越长。答案：A3. What led to Marcys discovery of the planets?A.That he found a dog owner was pulled by his dog.B.The tremble of Upsilon Andromeda.C.That any planet has gravity.D.That he believes any star has its planets.解析：细节理解题。由倒数第二段可知。答案：B4.We can infer that the scientists are . A.to find out whether the planets can support lifeB.to find means to communicate with the living beings on the planetsC.to find means to travel to the planetsD.soon to be able to answer the question of whether there is life on these planets答案：A
