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Section Ⅲ— Grammar课后篇巩固探究一、根据句意用适当的词填空1.They lost their way in the forest and made matters worse was nighthas helped to save the drowning girl is worth praising.Peter will have a chance to travel abroad next month.the astronomers eat in space is we want to know.he lost his new car upset him a lot.it was?answers the question correctly will be given a prize.he didn’t come yesterday is unknown.we will go there tomorrow or not hasn’t been decided yet.will be sent to help them is very important.he was chosen made us very happy.has happened proves that our prediction is right.you react(做出反应)to what happens.’t matter you win or lose.16.He explained why he did it,but he did it often remained a mystery.No one knew17.It worried the mother a lot she couldn’t afford the medical treatment for herfootball is one of the most popular sports throughout the world.we should put the money is hard to decide.No place seems to be safe.wants the book may have it.in Guangzhou took in students from Sichuan is true.this strange phenomenon.’s not clear whether he can catch the bus.’s still a question when the meeting will be held.made the rescuers very sad that the young man died soon after he was saved.三、翻译句子’ll go camping tomorrow depends on the weather.7.What she couldn’t understand was why fewer and fewer students showed interest in her?9.What made the school proud was that more than 90% of the students had been admitted to key90%多的学生都被重点大学录取了。
第- 1 -页 共1页 Unit 4 Section ⅠⅠ.单词拼写1．Astronomy is the scientific study of the sun ，the moon ，stars and so on.2．The project cost us more than one billion(十亿) dollars.3．The atmosphere at home was rather tense.4．His fundamental(根本的) mistake was to rely too much on other people.5．Oxygen is a gas that is present in air and water.6．Manmade satellites(卫星) are used for sending and receiving messages.7．Anything that is dropped falls towards the centre of the earth because of the pull of gravity(重力)．8．Global warming and climate(气候) change are perhaps the two greatest threats to our planet.9．She was unbelievably gentle(温和的) with him during his illness.10．A rare virus just attacked my computer system ，so it has broken down.Ⅱ.选词填空(用方框中所给短语的适当形式填空) give birth to ， in time ， for the first time ， lay eggs ， in turn1．My sister gave_birth_to a lovely baby last night ，which made us very happy. 2．Naturally ，you felt nervous when you went on the platform for_the_first_time.3．My father told me that not all the animals on the earth produce young by laying_eggs.4．We students clean the classroom every day in_turn.5．Although we met with some difficulty ，we successfully completed the project in_time.。
高中英语 unit 4 Astronomy：the science of the stars综合技能训练新人教版必修3时间：90分钟，满分：100分Ⅰ.单项填空(共15小题；每小题1分，满分15分)从A、B、C和D四个选项中选出可以填入空白处的最佳选项。
1．Because of the dry weather, fires ________ in many places recently.A．have broken away B．have broken downC．have broken out D．have broken in答案：C 句意：由于天气干燥，近来很多地方发生了火灾。
break away“逃走；逃脱”；break down“破坏；拆散”；break out“战争，火灾等突然爆发”；break in“闯入；强行进入”。
结合句意选C。
2．________ made her surprised was ________ she received a bunch of flowers for no good reason yesterday.A．That; how B．What; thatC．What; what D．That; that答案：B 句意：让她吃惊的是昨天她莫名其妙地收到了一束花。
what引导主语从句，并在从句中充当主语；that引导表语从句，在从句中并不充当成分。
3．After water which is ________ to life appeared on the earth, life began to develop.A．interesting B．funnyC．fundamental D．fond答案：C 句意：生命存在的基本要素——水，在地球上出现之后，生命开始发展。
be fundamental to对……是基本的。
4．Once, there, in the small village, ________ a big tree dating back to 100 years ago. But now it has gone.A．happened B．cameC．seemed D．stood答案：D 句意：在这个小村庄里曾经有一棵一百多年的大树。
Module 3 Unit 4 Astronomy: the science of the starsPeriod 1 Reading: How Life Began on The Earth班级__________ 姓名____________ 学号_____________Learning Objectives:1.Learn the useful new words and expressions in the reading material.2.Improve the reading skills while reading the passage about the astronomy.Learning Key Points:1. Grasp the important words and expressions in the reading material.2. Learn something about how life began on the earth.Learning Difficult Points:1. Grasp the important words and expressions.2. Improve the reading ability.Learning Procedures:I.【Pre-class homework】Assessment:A. Match the main idea of each paragraph.Para 1: ( ) A. The formation of the earth.Para 2: ( ) B. A widely accepted theory about the information of the universe.Para 3; ( ) C. The arrival of humans and their impact on the earth.Para 4: ( ) D. The importance of water for life.Para 5: ( ) E. The development of plants and animals on the earth.B. Ask and answer.1. What was there on the earth before life could begin?___________________________________________________________________________ 2.Why did animals first appear in the seas?___________________________________________________________________________ ___________________________________________________________________________ II. While-class （课堂教学流程）Step 1 Lead-inStep 2 Discussion （小组讨论交流课堂前置性作业）Ss discuss their pre-class homework in groups.Step3 Consolidation（巩固应用）A. Further reading and finish the following comprehension questions.1.( ) What forms the earth’s atmosphere?A. Carbon dioxide, oxygen .B. Carbon dioxide, oxygen, poisonous gas.C. Water vapor, carbon dioxide, oxygen, nitrogen.1D. Water vapor, carbon dioxide, oxygen, nitrogen and other gases.2. ( ) Why was the earth different from other planets?A. It produced a lot of heat.B. The water remained.C. Water disappeared.D. It was the oldest planet.3. ( ) What kind of factor improved the progress of life?A. Water forms on the earth’s surface.B. Green plants began to appear on land.C. The air is full of carbon dioxide.D. Animals began to appear such as insects, amphibians, est.3.( ) What is the main idea of this passage?A. It tells us how life begins to appear on the earth.B. It tells us why green plants grow before animals.C .It tells us water plays an important role in the development of life.D. It tells us carbon dioxide is the reason why living beings will die in the future,4.( ) The author infers us that if we want the life to continue on the earth, what shouldwe do?A. We should produce more carbon dioxide to cause global warming.B. We should solve the problem of global warming as soon as possible.C. We should bear less people and think about a new way to grow more crops.D. We should be worthy of water.B. Cloze test.At the very beginning, the earth was just a cloud of 1. ___________ (energy) dust. Then the dust combined 2. __________ a ball moving around the sun. After that, it exploded 3.______(loud) with fire and rock, 4. ___________ (produce) water vapor,carbon dioxide and other gases, 5. _____________ made 6. ____________ possible for life to begin to develop. Some small plants 7. ___________ (grow) in the water appeared on the earth’s surface, 8. _____________ (follow) by land animals, including insects, amphibians, reptiles and the dinosaurs. But they disappeared 9. ________ of a sudden and some small clever animals with hands and feet appeared and spread all over the earth and took the place of dinosaurs. They became 10. _______ most important animals on the planet —that is, human beings.Step 4 Presenting （成果展示与教师点拨）Ss present their group job.1．Ss write down their answers on the blackboard and give the explanation in class. 2．Teacher and Ss’ comment.Step 5 Summary（学生小结）Ss talk about what they have learned in the lesson.Keys:【Pre-class homework】A. Fast reading1. BADECB.1. Water vapor, carbon dioxide, oxygen, nitrogen and other gases.2. Because water allowed the earth to dissolve harmful gases into the oceans and seas. While-classA. 1-5 DBBABB. Cloze test.1.energetic2. into3.loudly4. producing5. which6. it7. growing8. followed9. all 10. thePeriod 2 Language points in Reading 1 Class：Name：Group：No：Learning Objectives:1. Learn and grasp the important useful new words and expressions.2. Learn the important useful sentences and patterns.3. Make sentences after the useful expressions.Learning Key Points:Ss grasp the usages of such important new words and expressions.Learning Difficult Points:Ss understand some difficult and long sentences.Learning Procedures:I.【Pre-class homework】Assessment: Translate the Chinese into English.A. Phrases1. 太阳系____________2．大爆炸____________3．及时，终于____________4．形成，安顿下来____________ 5．对……（来说）是基本的___________ 6．对……有害____________ 7．连锁反应____________8．下蛋____________9．产生，分娩____________ 10．轮到某人，接着____________ 11．二氧化碳____________ 12．阻止，制止____________B. Sentences3Assessment:1. 昨天晚会的气氛非常欢快，每一个人都度过了美好的时光。
新人教版高中英语必修3Unit4AstronomyReading（含答案）高一英语同步练习：必修3 Unit 4 Astronomy: the science of the stars第2课时Reading基础练习一. 语言知识学习：1.solid n. 固体 adj. 固体的；实心的,无空隙的；结实的，坚固的2.be to (do): (something) will definitely happen, or it must happen不可避免要发生或必须发生3.in time (for sth/to do sth): not late 及时；不迟She was in time for the class.She will be back in time to prepare dinner. 她来得及回来准备晚饭。
in time: sooner or later; eventually 迟早；最后You will realize your dream in time.I’ll see him in time. 总有一天我会遇见in/out of time: in/not in the correct time 合/不合节拍The audience clapped in time to the music.观众合着音乐的节拍拍手。
4. to begin with 以。
为开始，开始做。
Knowledge begins with practice.to begin with首先，最初，第一To begin with,I couldn`t understand every word.5. explode1). （使某物）炸开，爆炸2). （指感情）激发3). （指人口）突然或迅速增加explosion n. 爆炸（声）explosive adj.爆炸性的，易爆炸的 n.炸药，爆炸物6.as well as 除。
Unit 4 Astronomy: the science of the stars一、短语翻译1. 及时; 终于_________________2. 下蛋_________________3. 产生; 分娩_________________4. 轮到某人; 接着________________5. 阻止; 制止_________________6. 感到高兴; 感到振奋________________7. 既然________________8. 突发; 爆发________________9. 密切注视; 当心; 提防________________10. 挡住(光线) ________________二、用括号里所给词汇的正确形式填空1. As we all know, a bad eating habit is ___________ (harm) to one’s health.2. There ______ (exist) a good way to solve the problem at present.3. This new country came into _____________ (exist) in 1951.4. The ________ (puzzle) look on her face suggested she was ________(puzzle) over the ____________ maths problem. (puzzle)5. I think it’s my turn _____________ (drive) the kids to school this week.6. I was still living in London when the war ________________(break) out.7. They ______________(make) it clear to the public that they did an important and necessary job.三、用适当的介词或副词填空1. As far I’m concerned, there is no harm ________ making an apology to him first.2. Light pollution does harm __________ the eyesight of animals.3. Even though she is a little girl, strange ideas always exist ______ her mind.4. The old man became seriously ill, he has only existed ______ milk ever since.5. He was trying to puzzle __________ why he had been brought to the house.6. If you keep on trying, you will succeed ________ time.7. Where the missing plane has gone still remains a puzzle _______ us.8. When I’m feeling sad, my mother tells me funny stories to cheer me ______.9. Cathy didn’t expect any award but was still there to cheer_________ her friends and praise their accomplishments.四、选用方框里所给词汇的正确形式填空________ to their health2. I’m in a __________ as to what to do next.3. If the train is ________, it should arrive at three o’clock exactly.4. We got to the hospital just ________ to see the newborn baby.5. With five hungry children seated round the table, the food disappeared _________.6. _____________dinner is ready, wash your hands.7. The new stadium built for the 2022 Beijing & Zhangjiakou Winter Olympics will be three times_________ the present one.8. It’s well _________ that Thomas Edison invented the electric lamp.9. Your support is important to our work. ________ you can do helps.10. It is often the case _________ anything is possible for those who hang on to hope.五、选用方框里所给短语的正确形式填空2. I now regularly __________ my phone to check a fact, watch a video, read weibo.3. The police car signaled to us to __________.4. They are _______________ those houses to make room for a new hotel.5. Everyone was very concerned whether he would _______________ or not.7. We had to ________________ the house as we had lost the key.8. He ________________ the chocolate and gave each child a small piece.9. They were arguing but ________________ when someone came into the room.10. Does everyone know what to do if a fire ________________?12. When it’s _________________, I am too excited to speak.13. The young parents had to _____________ to look after their sick baby.14. It’s _____________that this young man was none other than the old man’s son.六、完成句子1. Some boys are too crazy about playing games on the computer, and ___________ (这对他们的健康非常有害).2. ___________________________(使医生最困惑的) was that they could not find the cause of the disease.3. ___________________________(我们发现是不可能的) to climb to the top of the hill in such bad weather.4. ___________________________(他认为对他来说是重要的)to learn spoken English well.5. ___________________________________(既然你的工作已经做完了), you’d better have a rest.6. Paper produced every year is _________________________(重量的三倍) the world’s production of vehicles.七、翻译句子1. 他们的未来取决于他们在这些考试中的表现。
【2019-2020】高考英语一轮选训习题Unit4Astronomy：thescienceofthestars（含解析）新人教版必修3 Astronomy: thescience of the stars李仕才Ⅰ.阅读理解ASales Representative — Immediate HiringDo you like meeting new people? Do you enjoy closing deals every day? Are you looking for a dynamic and high energy industry? THIS COULD BE THE CAREER(职业) FOR YOU!Fast Growing and Very Successful Credit Card Processor is looking for a dynamic outside salesperson to sell credit products and check processing services in the local area.What we need you to do：•Attend 3－5 appointments daily•Sell into smallsized to middlesized businesses•Work closely with the sales manager in Dallas TX (by phone)•Have the ability to manage paperworkWe offer：•Medical benefits eligibility(资格) after 90 days•Monthly bonuses•A jump start bonus of up to $750Successful applicants often have experience in customer services, inside sales, outside sales, sales support, management roles, or other customerfacing positions.We are an equal opportunity employer. We do not discriminate on the basis of race, religion, color, sex, age, national origin or disability.Please reply with a resume today!There is a difference. Experience Great Work! We have been servicing North East Ohio for more than 20 years with offices located in Akron, Canton, Lakewood, Streetsboro and Wadsworth【文章大意】本文是一篇招聘广告，招聘销售代表。
必修3 Unit 4 Astronomy: the science of the stars单元练习题第一部分：基础练习I．词汇1．选词填空并用适当的形式：develop，prevent，surface，disappoint，explode，float，force，publish，solid，spread，violent，astronomy1. In the last five years the city has _______ out rapidly in all directions.2. That he failed the college entrance examination _______ his parents very much.3. They ＿＿＿＿the canoe out into the middle of the river.4. The famous writer ________ a lot of popular novels in that _________ firm.5. The ____________ of gravity makes things fall to the earth.6. The robber kicked the door _______ and broke into the old man's house.7. Nothing can separate the two，because they have a ______ friendship foundation.8. During World War II，two atomic bombs _______ in Japan，killing a large number of people.9. With the ______ of our country’s economy，people's living standard has been greatly raised.10. More than 70% of the earth’s _____ is covered by water.2．词组识记1．依靠；取决于 2. think of …as3．既然，由于 4. study the subject scientifically5．摔跤 6. the beginning of life7．向某人解释某事8. make it possible for life to develop9．随着时间的推移10. prevent sb. from doing sth11．盼望12. the only natural satellite of the earth13．导致14. rise slowly into the air15．屏住呼吸16. make notes17．作一次太空之旅18. know much about sth19．爆发20. get the hang of it.II．语法1．用适当的连词填空：1. They lost their way in the forest and ___ made matters worst was ___ night began to fall.2. __________has helped to save the drowning girl is worth praising.3. It is said __________Peter will have a chance to travel abroad next month.4. __________Yang Liwei ate his food in space is _________ we want to know.5. _________ he lost the bike worried him a lot.6. I read about it in some book or other，does it matter _________it was.7. __________ of you answers the question correctly will be given a prize.8. _________ he didn't come yesterday is unknown.9. _________we will go tomorrow hasn't been decided yet.10. _________ will be sent to help them is very important.2. 根据中文提示翻译下列句子：1.________________________________________（太空旅行所需的）is careful preparations.2. It will soon be announced _______________________________（谁获得第一名）.3.______________________________________________________（杨利伟从太空中安然着陆地球）made all Chinese exited and cheerful.4. It is still unknown _________________________（他什么时候入党的）.5._________________________________________________（宇航员在太空中如何吃饭、睡觉和行走）is very strange and interesting.6.__________________________________________（地球与其它行星在哪方面不同）is what are most interested in.7. It remains a secret __________________________（他为什么突然变卦）.8.__________________________________________(何时战争才会从世上消失) is hard to say.9. (最令人满意的是)______________________________was that they finished the work in time.10.（怎样提高我们的学习成绩）______________________ is what we are most concerned about.III．单项填空1. Once fighting _________ between the two villages and many people were killed.A. broke outB. was broken outC. had broken outD. had been broken out2. The Olympics are to be held in Beijing in 2019，______ has become a great encouragement to all Chinese.A. whereB. thatC. whichD. that3. The moment the cat heard the mice _______ noises，it rushed out ________ the door.A. make，fromB. making，behindC. make，from behindD. making，from behind4. ---How far apart do they live?---_________ I know，they live in the same neighbourhood.A. As long asB. As far asC. As well asD. As soon as5. It was a matter of _____ would take the position.A. whoB. whoeverC. whomD. whomever6. Why not seize it _______ you’ve got such a good chance?A. now thatB. thatC. whereD. which7. His parents were ______at the ______ news that he failed the exam again.A. disappointed，disappointingB. disappointed，disappointedC. disappointing，disappointingD. disappointing，disappointed8. ____ he grew older，he lost interest in everything except gardening.A. WhenB. AsC. WhileD. Until9. The other day，my brother drove his car down the street at _____ I thought was a dangerous speed. A. asB. whichC. whatD. that10. The result of the experiment was very good，_______ we hadn’t expected.A. whenB. whatC. whichD. as11. _____ the books where they were ______.A. Lay，layingB. Lie，lyingC. Lay，lyingD. Lie，laying12. He ______ at once when I promised to help him.A. cheered upB. gave upC. lighted upD. turned up13. The audience clapped their hands _____ to the music.A. in timeB. on timeC. at timeD. behind time14. There is a man _______ himself Mr Li waiting for you.A. calledB. callsC. callingD. call15. He _____ his eyes from his desk and then ____ from his seat.A. rose，raisedB. rose，roseC. raised，raisedD. raised，rose第二部分：综合练习I．完形填空There was in Washington a policeman who was known as the man who arrested the president. The_1_ took place when the man was a green officer_2_ at No. 1 Street.One evening，President Grant ，who had been invited to a party of friends，was_3_ home to meet the engagement. The _4_ ，with its four horses，was running down the street so fast that the new policeman __5_ the driver to stop . The driver _6__ him and asked what was the _7__. Don’t you know you are driving about nine times as fast as the law _8_?” said the officer.“Yes，” answered the president. “ I suppose I was ，_9_ you speak of it.”“Well，then，you may _10_yourself under arrest and go with me to the station house.”There were some marks from the other _11_of the carriage _12_ whom was a foreign minister，but the president said，“The man is _13_ right.” and asked the policeman to _14_himself behind him._15_ the policeman heard a soft voice，“ I only thought you _16_ know that it’s President .” Th e officer was very _17_ and begged them to let him go，_18_ the president would have none of it.When they reached the station，the captain turned _19_. Apologies were made，but the president _20_on paying the proper fine.1. A. accident B incident C. account D. affair2. A stood B stationed C kept watch D defending3 .A walking B wandering C running D hurrying4. A. car B bus C carriage D train5. A begged B hoped C ordered D suggested6. A agreed B accepted C listened D obeyed7.A matter B thing C affair D business8. A lets B forbids C tells D allows9. A though B unless C while D since10. A decide B guess C consider D treat11.A passengers B drivers C officers D policemen12.A with B among C in D except13.A. rather B hardly C rarely D perfectly14.A to seat B to sit C to stand D to climb15.A Fortunately B Happily C Suddenly D Carefully16.A could B must C ought to D may17 A excited B interested C moved D astonished18.A therefore B but C and D otherwise19.A. white B green C red D yellow20.A demanded B asked C required D insistedII．阅读理解ADamage to Ozone layer Gets WorseIn the middle of winter，when snow is falling in many parts of the United States，scientists have sounded a warning to people who plan to spend many hours in the sun this summer. The warning is: The sun’s summertime rays are more dangerous than once thought.A team of scientists from 80 nations recently reported to the United Nations that a layer of ozone (臭氧层) in the atmosphere，which protects humans from harmful levels of ultraviolet（紫外线）radiation，will be thinner over the United States this summer. The thinner layer allows more ultraviolet rays from the sun to reach Earth. The extra amount of ultraviolet radiation could cause an increase in the number of cases of skin cancer.Scientists first became concerned about the ozone layer in the mid-1980s when a hole was discovered in the layer above Antarctica during the winter. The hole was caused by chemicals used in refrigerators and airconditioners. When these chemicals are sent out into the atmosphere，they produce gases that destroy the ozone.Concern about the protective ozone layer rose more recently when data(数据) from satellites and ground stations showed that ozone levels were dropping over areas other than Antarctica. Low ozone levels were recorded in the spring and summer over the United States and over other populated areas in the world.Although many countries have already begun stopping the use of ozone destroying chemicals，the new findings are expected to advance the timetable for a total ban(禁止) of the chemicals.1. The scientists have observed the ozone layer_____.A. since 1980B. since last winterC for about 20 years D. for about one year2. The ozone layer in the atmosphere can _____.A. do a lot of good to human beings in many ways.B. protect humans from diseases caused by bad weather.C. do a lot of harm to human beings in the summer-time.D. protect humans from harmful levels of ultraviolet radiation.3. Scientists first found that there was a hole in the ozone layer_____.A. above Arctic during the winter in the mid-1980sB. above Antarctica during the winter in the mid-1980sC. over somewhere in the north of the equator in 1980D. over the U.S.A in the summertime in the mid-1980s4. The damage to the ozone layer was caused by_____.A. the changeable weatherB. ozone-destroying chemicalsC. chemicals from refrigeratorsD. chemicals from air conditionersBEarly in the morning of June 29，1991，Carrie and Morgenstern were watching the field. Although they could see nothing through the thick fog，they kept their camera running.By 6 a.m. the fog began to lift. A remarkable pair of circles had been flattened. Stalks (主茎) were bent but not broken. Outside the circles the wheat was untouched. Muddy though the field was，there were no footprints or other marks. The circles seemed to have come from nowhere. “ I can’t explain it at all ，” Mike Carrier said to himself with his eyes wide open.Carrier is not alone since the early 1980s，more than 2019 circles have app eared in farmer’s fields. Most circles form at night between May and August.Some believe the circles are caused by deer or some other animals. Others think of UFOs. “The circles are messages given by those who come from outer space，” says Michael Green. “Perhaps they are trying to get in touch with us.”Pat Delgado has done research on crop circles since 1981. He believes that they are caused by “ some form of earth energy.”Most scientists think that there’s no scientific basis to back up Green’s or Delgado’s theories. Some of them say，“We think they’re nothing but hoax(骗局).”In September 1991，Doug Bower and Dave Chorley told newsmen that since 1979 they had made circles throughout southern England to fool people who believed in UFOs.Since the early 1980s，Dr. Terence Meaden has visited more than1000 circles. Now he thinks he may have the answer. He believes true crop circles are made by vortex(旋风) which can flatten the crop in circular patterns.Now crop circles are still found in southern England each summer. Are they really the traces of UFOs?5. On the morning of June 29，1991，Carrier and Morgensern hoped to________.A. record the important thingB. draw a conclusionC. find a secret of natureD. see something funny6. When he saw the crop circle，Mike Carrie was________.A. satisfiedB. frightenedC. surprised D interested7. Most scientists consider that theories of Green and Delgado are_________.A meaningful B. reasonableC instructive D. against the laws of science8. According to the article we may know that all the crop circles______.A. are made by those who come from outer spaceB. are nothing but hoaxesC. are not hoaxes D can be explained by scientistsCThe journey to the moon had been the first step toward future exploration(探险) in space. The distance between the Moon and Earth is very short indeed when compared with the distances between Earth and the other planets. Mars，the nearest planet to Earth is millions of miles away. Traveling to the planets will be man’s next aim. Such travels will be more challenging than the trip to the moon and certainly more adventurous.Recently，two American spaceships，Vikings 1 and 2，landed on Mars trying to discover whether that planet has any life on it. So far the signs of life on Mars has neither confirmed(确认) nor ruled out. Russians have discovered that the surface of Venus(金星) is so hot that it is almost certain that there is no life there. Also the atmosphere of Venus is extremely dense(稠) and the pressure is nearly a hundred times greater than that of the Earth’s atmosphere.Scientists believe man may find planets which have the same conditions as those we have on Earth ，but man should realize Earth will be his only home for a long time and begin to love and care for it.9. According to the passage，traveling to the planets will be ________.A. much easier and even more interestingB. far more exciting and dangerousC. man’s final aimD. man’s first step10. Which of the following is Not true?A. Mars is nearer to the earth than the moon.B. The moon is much nearer to the earth than Mars.C. Of all the planets，Mars is the nearest to the earth.D. All the planets are much farther to the earth.11. From the passage，we can guess_____.A. there is life on MarsB. there is no life on MarsC. the atmosphere of Mars is not so dense as that of VenusD. scientists will have little hope to find the answers12. Man can live on under the conditions of _______.A much too hot surface B. the same pressure as we get on earthC. normal atmosphere as we have on earthD. both B and CDUnless we spend money to spot and prevent asteroids(小行星) now，one might crash into Earth and destroy life as we know it ，say some scientists.Asteroids are bigger versions of the meteoroids(流星) that race across the night sky. Most orbit the sun far from Earth and don’t threaten us. But there are also thousands of asteroids whose orbits put them on a collision course with Earth.Buy $ 50 million worth of new telescopes right now，Then spend $ 10 million a year for the next 25 yearsto locate most of the space rocks. By the time we spot a fatal one，the scientists say ，we’ll have a way to change its course.Some scientists favor pushing asteroids off course with nuclear we apons. But the cost wouldn’t be cheap.Is it worth it? Two things experts consider when judging any risk are: 1) How likely the event is；2) How bad the consequences if the event occurs. Experts think an asteroid big enough to destroy lots of life might strike Earth once every 500 000 years. Sounds pretty rare-but if one did fall，it would be the end of the world. “ If we don’t take care of these big asteroids，they’ll take care of us，” says one scientist. “ It’s that simple.”The cure，though ，might be worse than the disease. Do we really want fleets of nuclear weapons sitting around on Earth? “The world has less to fear from doomsday(毁灭性的) rocks than from a great nuclear fleet set against them，”said a New York Times article.13. What does the passage say about asteroids and meteoroids? _________.A. They are heavenly bodies different in compositionB. They are heavenly bodies similar in natureC. These are more asteroids than meteoroidsD. Asteroids are more mysterious than meteoroids14. What do scientists say about the collision of an asteroid with Earth? _______.A It is unlikely but the danger existsB. Such a collision might occur once every 25 yearsC. Collision of smaller asteroids with Earth occur more often than expectedD. It’s still too early to say whether such a collision might occur15. What do people think of the suggestion of using nuclear weapons to alter the course of asteroids? _______.A. It sounds practical but it may not solve the problemB. It may create more problems than it might solveC. It is a waste of money because a collision of asteroids with Earth is very unlikelyD. Further research should be done before it is proved applicable16. We can conclude from the passage that________.A. while pushing asteroids off course nuclear weapons would destroy the worldB. asteroids racing across the night sky are likely to hit Earth in the near futureC. the worry about asteroids can be left to future generations since it is unlikely to happen in our lifetimeD. workable solutions still have to be found to prevent a collision of asteroids with EarthIII．单句改错1. Measures should be taken to stop the river from being polluting.2. The gardener explained us the development of a seed into a plant.3. The audience exploded laughter while listening to the cross talk.4. The strength of the explosion broke all the windows in the building.5. A violence storm struck our town and caused serious damage yesterday.6. The bird was lucky enough to escape from fired.7. Having learnt the text，we know many more about gravity.8. Some animals produce their young from their bodies.9. He seems that he has worked in sales for several years.10. Languages have developed for a long period of time.IV．句子翻译1．当SARS爆发时，突然的恐惧迅速地弥漫全国。
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 children’s teeth.5. Because of the ________ (到场) of the famous football star, everyone cheered up.6. Without o________ animals can’t 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 didn’t want to tell him the secret but he f_______ me to do so.10. At first she didn’t like English but g__________ she is in terested 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. whatC. whetherD. how22. you like it or not, you'll have to give up smoking.A. IfB. WhetherC. HowD. Why23. They don’t allow ______ here. That is to say, we are not allowed _____ here.A. to smoke; to smokeB. smoking; smokingC. to smoke; smokingD. smoking; to smoke24. All these gifts must be mailed immediately so as to be received _________Christmas.A. afterB. in timeC. in time forD. in no time25. The way he did it was different _______ we were used to.A. in whichB. in whatC. from whatD. from which26. All made possible for China to succeed in carrying on its reforms and open-door policy.A. what happened; itB. what happened; thatC. that happened; itD. that happened; that27. _______ what you said, he got very angry.A. BecauseB. Because ofC. SinceD. For28. People will be encouraged to eat healthy food, ________ and to drink less beer and wine.A. not to smokeB. don’t smokeC. not smokeD. not smoking29. The teacher as well as a number of students ______ to attend the party yesterday.A. were askedB. was askedC. were askingD. was asking30. We need to improve the of our new range of products.A. lookB. expressionC. appearanceD. outlook31. Unless you ___________ nature, you are sure to be punished by nature.A. go againstB. go acrossC. go byD. go over32. Some policemen were sent there to ___________ the villagers ___________ down the trees.A. keep; cuttingB. prevent; cuttingC. prevent; to cutD. stop; to cut33. I don’t believe that older people are always wiser. It _______ the person and what kind of experiences he or she has had.A. requires ofB. results fromC. depends onD. belongs to34. It’s no use trying to solve problems ________. Talks are the only solution.A. by the way of warB. by forceC. by communicationD. by means35. _______ she is out of a job, Lucy has been considering going back to school, but she hasn’t d ecided yet.A. Now thatB. Even thoughC. No matter howD. Except that三、完形填空阅读下面短文，掌握大意，然后从36-55各题所给的四个选项（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 the 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 was 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 are 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 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. promised 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. 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. pleasure52. 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 ForgetsD. 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 of 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 happen. 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 day last month, for example, Iwas 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 people’s for getfulness 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 caus e us great trouble.56. If you want to 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 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 about absent-mindedness of professorsB. we don’t 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 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 and 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 got 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 good-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 couldn’t 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 newspaper.In another part of the town, a man had killed a woman with a knife and was seen to run away in a t axi. When Harry’s taxi stopped outside his office, a policeman happened to be standing there. He saw the blood on Harry’s shirt, and took him to the police station. He was kept till 3 o’clock in the 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 dayB. an unlucky dayC. a busy dayD. a good day62. Put the following sentences 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, eB. b, a, d, c, eC. b, a, c, d, eD. c, b, 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 office 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 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 human 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 in 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 supplied toanimals 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. perhaps 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. harmfulB. uselessC. helplessD. dangerous68. All the additives .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 diseases 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 needn’t take care of what we eat.DAt first, the earth’s surface layer（层）was made up of huge blocks of hard, solid rocks. Then slowly, there rocks broke up into smaller and smaller pieces. Finallystones, 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 stones, 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 slowly 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 these rocks are suddenly cooled, they may crack. Ice also plays a part in making soil. Water in the cracks can turn into ice in cold weather. As this happens, it becomes bigger and the cracks become wider, and finally break into smaller pieces.71. According to the passage, soil .A. forms very slowlyB. is a mixture of stones, pebbles and sandC. make up the layers of the earthD. is becoming smaller and smaller72. How many factors are mentioned in helping the forming of soil?A. Three.B. Four.C. Five.D. More than five.73. Which of the following speeds up the breaks of rocks most?A. Hot weather.B. Cold water.C. Sharp changes in temperature.D. More dead plants in the cracks.74. Which of the following is NOT true?A. The remains of many plants of animals formed soil.B. If a large rock never moves, it will never break up.C. Even if a large rock never moves, it will break up.D. Ice in the cracks helps to break up rocks75. The best title for this passage should be .A. Soil from RocksB. Ways to Break up RocksC. Soil on the EarthD. Soil, Outmost Layer of the EarthEDo you know that you can use your watch as compass（指南针）on a sunny day? Look at the watch which is on your hand and point the hour hand in the direction of the sun. Imagine a line which runs from the center of the watch through a point halfway between the hour hand and number one. This line will point south.In the northern half of the earth the sun is in the south at noon. In our country the real noon is one o’clock. If at that time we point the hour hand at the sun, the hour hand and number one will point south. That’s why you must imagine a line which wi ll run from the center of the watch through a point halfway between the hour hand and number one. It will point south.If you are in the southern part of our planet, you must point number 12 at the sun. The line which you can imagine between number twelve and the hour hand will then show north.76. The sun is in the south at noon .A. in any country in the worldB. in the north of the equatorC. in the south of the globeD. in some northern places of the earth77. In the northern half of the earth, if we point the hour hand at the sun at one o’clock then .A. the minute hand shows northB. the hour hand shows northC. number one shows northD. number twelve shows north78. If the people in the southern part of the earth point 12 at the sun at 5 o’clock, the minute hand shows .A. west by northB. north by westC. north by eastD. east by north79. What do you think of the story?A. It’s interesting. But sometimes it doesn’t work.B. It’s impossible. I don’t like it.C. It’s useful. But it isn’t interesting.D. It’s great. But it isn’t helpful.五、书面表达请写一篇短文，阐述水在人们生活及工业中的重要性。
