2012高一英语每课一练 Unit4 Astronomy the science of the stars-period 1(人教版必修3)

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2012高一英语每课一练 Unit4 Astronomy the science o the stars-period 3(人教版必修3)

必修三Unit 4 Astronomy the science of the starsPeriod Three Discovering useful structures课时训练一、用适当的连接词填空1._____ he said at the meeting surprised us greatly. 【what】2. It has been found ____plastics can be widely used in industry. 【that】3. It worried her a lot _________her wallet was lost. 【that】4. Can you tell me________ that man was? 【who 】5. I wonder ____we can do about the problem of pollution. 【what】6. I know nothing about her but___ she is from Canada. 【that】7. The reason why he has been such a success is___ he never gives up. 【that】8.___is troubling me is ___I don’t have any experience in this kind of work.【what;that】二、单项填空：1.Drinking too much ________ your health.A. is harm to B is harmful to C. does harmful to D. harm to2. _____that your daughter is well again, you no longer have anything to worry about.A. SinceB. NowC. AsD. Bec ause3. He _______his hang on my shoulder.A. laidB. layC. liedD. lain4. ---It’s your turn _____the text, Tom.---I’m sorry I can’t recite it.A. recitingB. to reciteC. recitedD. recite5. When and where we _____the meeting ______still a problem.A. have; areB. shall have; isC. had; isD. will have ; are6. It worried her a bit _______her hair was turning grey.A. whileB. thatC. ifD. for7._____she will be given the job is still under discussion.A. WhetherB. ThatC. IfD. What8. ______is a main subject is known to everybody.A. EnglishB. That EnglishC. The EnglishD. What English9. The support of the students_____ the losing team and they played harder, so in the end they won the game.A. brought upB. cheered upC. grew upD. turned up10. They lost their way in the forest, and _____made matters worse was that the night began to fall.A. itB. whatC. whichD. that11. No one can prevent the plan ______.A. from carrying outB. to carry outC. being carried outD. to be carried out12.This book is _______for a seven-year-old child to read.A. too much difficultB. too more difficultC. much too d ifficultD. more too difficult13. The fact is ____computers are of great aid to the development of science and technology.A. whetherB. howC. thatD. what14. He is sure to learn how to repair the computer____ if he continues working hard.A. in timeB. on timeC. over timeD. at one time15 People can’t afford expensive things___ the prices of daily goods going up.A asB forC withD since16. It is reported that the united states uses____ energy as the whole of Europe.A as twice B. twice much C. twice much as D. twice as much17.----How long are you staying? ----I don’t know _____A That’sB Never mindC It dependsD It doesn’t matter18The camera isn’t missing. It’s still____ where I ____ it a month ago.A lies; layB lies; laidC lays; layD lays; laid19. That’s the best way you thought of ____into dangerous areas.A stopping people to getB to stop people gettingC keeping p eople gettingD preventing people to get20.Just because of his own carelessness, he was made to do it ____time.A the secondB a secondC secondD a twice【1.B】【2.B】【3.A】【4.B】【5.B】【6.B】【7.A】【8.B】【9.B】【10.B】【11.C】【12.C】【13.C】【14.A】【15.C】【16.D】【17.C】【18.D】【19.B】【20.B】。

Unit4Astronomythescienceof每课一练(人教必修3)2.doc

Unit 4第2课时I .单词拼写1 • The _______ （气氛）at home has been depressing since they had the fight.2.Chemicals that arc _______ （冇害的）to the environment arc forbidden here.3.Your ______ （出场）is requested at the club meeting on Friday.cey has a back injury that may _______ （阻止）him playing in tomorrow's game・5 - In this ______ （激烈的［conflict, about 20 common people died.答案：1 .atmosphere 2.harmful 3.presence 4.prevent 5.violent y.易混模块采用in time/on time/in no time/at one time/at times/at any time 填空：1 • —Why are you in a hurry to leave here? 一Get home to bathe the children.2.These buses are never _______ and the passengers are always complaining.3.I am away, please call me _______ if someone comes to see me.4.You can't imagine this lake used to be a beautiful place in our province ______ •5.He rushed out of the kitchen _______ when he heard the shout.6._______ I sit silently and wonder if this kind of job is worth all the effort.7._______ will China first use nuclear weapons.答案: Lin time 2.on time 3.at any time 4.at one time 5.in no time 6.At times 7.At no timeIII•短文填空根据课文内容填空。

2012高一英语每课一练 Unit 4 Astronomy the science of stars-period 4(人教版必修3)

Unit 4 Astronomy: the science of the stars课时训练卷I一. 单项选择（共15小题;每小题1分,共15分）1. ------ How often do you go to the cinema?------ ，b ut usually twice a month.A. It all dependsB. Have no ideaC. As usualD. Not at all2. The boy that his cock an egg yesterday.A. lied, layB. lied; laidC. lay; liedD. laid; lain3. he can pass the entrance examination is quite uncertain.A. IfB. WhetherC. ThatD. What4. makes this shop different is that it offers more personal services.A. WhatB. WhoC. WhateverD. Whoever5. What we used to think impossible now does seem possible.A. isB. wasC. has beenD. will be6. As the busiest woman in Norton, she made her duty to look after all the other people’s affairs in that town.A. thisB. thatC. oneD. it7. days went by, he didn’t succeed in anything he had planned.A. WithB. WhenC. AsD. While8. It’s accepted that men like playing footba ll more than women.A. especiallyB. generallyC. simplyD. totally9. The young dancers looked so charming in their beautiful clothes that we took pictures of them.A. many ofB. masses ofC. the number ofD. a large amount of10. How the big forest fire has remains to be a mystery.A. taken placeB. turned upC. broken outD.broken up11. ------ I’m thinking of the test tomorrow. I’m afraid I can’t pass this time.------ ! I’m sure you’ll make it.A. Go aheadB. Good luckC. No problemD. Cheer up12. We must do whatever we can to the river being polluted any more.A. separateB. keepC. preventD. guard13. Going on a trip into space must be quite exciting experience.A. / ; theB. the; theC. the; anD./ ; an14. China is a country, but America is a country.A. developing; developingB. developed; developedC. developing; developedD. developed; developing15. ------ What happened to you just now, Daisy?------ My key was missing. I had to the door open.A. forceB. keepC. breakD. leave二. 完型填空（共20小题;每小题1.5分,共30分）People often say that the Englishman’s home is his castle. They mean that the home is very important and __16__. Most people in Britain live in houses __17__ flats, and many people own their homes. This means that the y can make them individual; they can __18__ them and change them in any way they __19__ . In a crowded city the individual knows that he or she has a private space which is __20__ for himself of herself and for __21__ friends.People usually like to __22__ their space. Are you sitting now in your home or in a library or on a beach or a train? If you are on the beach you may have spread your __23__ around you; on the train you may have __24__ your coat or small bag on the seat beside you; in a library you may have one __25__ or chair which is your own.Once I was traveling on a __26__ to London. I was in a section for four people and there was a table between us. The man on the __27__ side to me had his briefcase on the table. There was no __28__ on my side of the table at all. I was made rather __29__, I thought he thought that he owned the __30__ table. I took various papers out of my bag and put them on __31 __! When I did this he stiffened and his eyes nearly popped out of his head. I had __32__ his space! A few minutes later I took my papers __33__ his case in order to read them. He immediately __34__ his case to his side of the table. （Of course , it is __35__ that he just wanted to be helped to me ! ）16. A. helpful B. personal C. necessary D. useful17. A. rather than B. as well as C. as a result of D. or rather18. A. buy B. leave C. paint D. offer19. A. make B. clear C. like D. prepare20. A. only B. already C. ever D. even21. A. unwanted B. close C. sick D. invited22. A. mark B. decide C. choose D. keep23. A. towels B. sands C. paper s D. flags24. A. find B. give C. put D. store25. A. book B. corner C. companion D. meal26. A. plane B. train C. way D. street27. A. opposite B. back C. wrong D. good28. A. matter B. weight C. light D. space29. A. angry B. hurt C. fearful D. busy30. A. right B. only C. small D. whole31. A. the table B. his case C. the seat D. his side32. A. invaded B. shut C. separated D. shared33. A. into B. for C. off D. out of34. A. hid B. set C. moved D. kept35. A. possible B. true C. wonderful D. ordinary三. 阅读理解（共10小题;每小题2分,共20分）AEnglish 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 isn’t rising nearly as fast as the numbers of many other languages aro und the world, simplybecause 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 ab out 1.5 billion of the world’s 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 what’s 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 Graddol’s opinion, English will _______.A. remain widespread and importantB. be more important than any other languageC. lose its dominant positionD. die away in the near future37. The underlined sentence in the last paragraph implies that ______.A. snowballs will roll down faster than language ballsB. the English language snowball is rolling down faster than a ny time in the pastC. English language will soon drop in dominanceD. 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 most widely spoken?A. Malay.B. Arabic.C. Urdu.D. German.40. What should be the best title for the passage?A. English Remaining the Dominant PositionB. The Future of English? Who Knows?C. Opinions from Different ExpertsD. The English Language Snowball Rolling DownBLanguage learning begins with listening. Children a re greatly different in the amount of listening they do before they start speaking, and later starters are often long listeners .Most children w ill “obey” spo ken instructions some time before they can speak, though the word “obey” is hardly accurate as a description of the eager and delighted cooperation usually shown by the child .Before they can speak, many children will also ask questions by gesture and by making questioning noises.Any attempt to study the development from the noises babies make to their first spoken words leads to considerable difficulties. It is agreed that they enjoy making noises, and that during the first few months one or two noises sort themselves as particularly expressive as delight, pain, friendliness, and so on. But since these can’t be said to show the baby’s intention to communicate, they can hardly be regarded as early forms of language. It is agreed, too, that from about three months they play with sounds for enjoyment, and that by six months they are able to add new words to their store. This self-imitation（模仿）leads on to deliberate（有意的）imitation of sounds made or words spoken to them by other people. The problem then arises as to the point at which one can say that these imitations can be considered as speech.It is a problem we nee d to get out teeth into. The meaning of a word depends on what a particular person means by it in a particular situation and it is clear that what a child means by a word will change as he gains more experience of the world .Thus the use at seven months of “mama” as a greeting for his mother cannot be dismissed as a meaningless sound simply because he also uses it at other times for his father, his dog, or anything else he likes. Playful and meaningless imitation of what other people say continues after the child has begun to speak for himself, I doubt, however whether anything is gained when parents take advantage of this ability in an attempt to teach new sounds.41. Before children start speaking________.A. they need equal amount of listeningB. they need different amounts of listeningC. they are all eager to cooperate with the adults by obeying spoken instructionsD. they can’t understand and obey the adult’s oral instructions42. Children who start speaking late ________.A. may have problems with their listeningB. probably do not hear enough language spoken around themC. usually pay close attention to what they hearD. often take a long time in learning to listen properly43. A baby’s first noises are ________.A. an expression of his moods and feelingsB. an early form of languageC. a sign that he means to tell you somethingD. an imitation of the speech of adults44. The problem of deciding at what point a baby’s imita tions can be considered asspeech________.A. is important because words have different meanings for different peopleB .is not especially important because the changeover takes place graduallyC. is one that should be properly understood because the meaning of words changes with ageD. is one that should be completely ignored（忽略）because children’s use of words is often meaningless45. The speaker implies________.A. parents can never hope to teach their children new soundsB. children no longer imitate people after they begin to speakC. children who are good at imitating learn new words more quicklyD. even after they have learnt to speak, children still enjoy imitating卷II一. 单词拼写(10分)1. There is too much (暴力) on TV.2. With the d of econ omy, people’s living standards are higher now.3. Every night he observes the space through a t . .4. The illness is s through the village.5. One cannot e without air.6. You will (逐渐地) get used to the weather here.7. By the time they reached the top of the mountain, they were (精疲力尽).8. There is a big underground railway (系统) in London, which is good for travelers.9. Zhang Heng was one of the most famous Chinese a in the world.10. The mammals (繁殖) when the animals, harmful to them, disappeared.二. 翻译下面短语(15 分)1．太阳系2．及时，总有一天3．阻止，制止4．依靠，信赖5．感到高兴6．既然，由于7．一般而言8．熟悉，掌握9．突发，爆发10．与…不同11．冷却12．全球变暖13．二氧化碳14. 在表面上15. 好象三. 用以上短语的正确形式填空(10 分)1. It was almost midnight that a fire in the neighborhood.2. you are here, why not have a drink?3. ---Did you catch your plane?---Yes, we got there just .4. The dish tastes good after it .5. ---Will you go fishing this afternoon?---Well, it all the weather.6. After a while I it and we began to enjoy ourselves.7. The fans when they saw the famous film stars arrive.8. Country life is quite _______________ city life.9. We should find some ways to _________ the harmful gas ______ spreading.10. women cry more easily than men.参考答案卷I一、单项选择1-5 A B B A B 6-10 D C B B C 11-15 D C D C A二、完形填空16-20 B A C C A 21-25 D A A C B 26-30 B A D A D 31-35 B A C C A三、阅读理解36-40 C D B A B 41-45 B D A B D卷II一、单词拼写1. violence2. development3. telescope4. spreading5. exist6. gradually7. exhausted8. system9. astronomers 10. multiplied二、翻译下面短语1．太阳系solar system 2．及时，总有一天in time3．阻止，制止prevent from 4．依靠，信赖depend on5．感到高兴cheer up 6．既然，由于now that7．一般而言generally speaking 8．熟悉，掌握get the hang of9．突发，爆发break ou 10．与…不同be different from11．冷却cool down 12．全球变暖global warming13. 二氧化碳carbon dioxide 13. 在表面上on the surface15. 好象as if三、用以上短语的正确形式填空1. broke out2. Now that3. in time4. cools down5. depends on6.got the hang of7. cheered up 8. different from 9. prevent from10. Generally speaking。

2011-2012学年高一下学期英语复习题(第09周)Unit4 Astronomy the science of the stars

2011-2012学年高一下学期英语辅导卷（第09周）编写老师：T om姓名：______________ 成绩：_______________Unit 4 Astronomy: the science of the stars单元要点预览（旨在让同学整体了解本单元要点）词汇部分词语辨析1. loudly / loud / aloud2. unlike / dislike3. remain / leave4. climate / weather5. now that / since / because / as词形变化1. adj.强暴的___________ ___________ n. ___________ adv.2. ___________ adj.基本(础)的n. ___________ adv. ___________ n.3. ___________ n.生长，发展；___________ vt. ___________ adj.4. ___________ vt.放下；摆设；产(蛋) lay---laid---laid---laying___________ vi. 躺，平放；位于lie---lay---lain---lyinglie n.&vi. 谎话；说谎lie---lied---lied---lying5. ___________ vt. 预防，防止___________ n. ___________ adj.6.___________ adj.和蔼的轻柔的___________ adv.7. ___________ n.物理，物理学___________ n. ___________ adj.重点单词1.system n.[c]2. lay vt. (laid, laid, laying)3. harmful adj.2.4. exist vi. 5. puzzle v. 6. pull v.重点词组1. to begin with2. in time3. in one’ s turn4. prevent...from5. block out6. be off = set off7. break out 8. watch out重点句子1. It exploded loudly with fire and rock, which were in time to produce the water vapour, carbon dioxide, oxygen, nitrogen and other gases, which were to make the earth’ s atmosphere.2. That made it possible for life to begin to develop.3. But when I tried to step forward I found I was carried twice as far as on the earth and fell over.重点语法宾语从句和表语从句（见语法部分）语言要点（模块）Ⅰ.词语辨析(旨在提供完形填空所需材料)1. loudly / loud / aloud【练习】根据句子的意思在括号里填入适当的词。

高一英语每课一练unit4astronomythescienceofthestarsperiod1人

Unit 4 Astronomy：the science of the stars（1）课时训练基础操练Ⅰ. 单词拼写1. The government took immediate measures and the disease was p spreading.2. Our solar s has 8 planets.3. My new teacher is a very g person.4. This area has a hot c .5. As everybody knows, smoking is h to people’s health.6. He was involved in the (暴力的) fight last night and was arrested by the police.7. Some advertisements have no （吸引力） at all.8. This kind of plant only （存在） in Africa.9. The boss never shouts at his staff in the(在场) of others.10. There is an （气氛） of peace and calm in the country, quite different from that of a big city.lessen/dissolve/dependon/prevent ...(from ...)/lay2. Salt easily in water.3. The old man his two sons for food and clothing.4. The cuckoo(杜鹃) its eggs in other birds’nest.5. The pain already after taking the medicine.Ⅲ. 翻译句子1. 既然你已经知道这件事了，我不想再谈了。

高一英语必修3-Unit-4-Astronomy-the-scien

高一英语必修3 Unit 4 Astronomy: the science of the stars人教试验版【本讲教化信息】一、教学内容必修3 Unit 4 Astronomy: the science of the stars（一）重点单词（二）重点短语（三）重（难）点句型二、学问精讲（一）重点单词1. system n.[c] 系统；体系；制度systematic adj.He created a new system of teaching foreign languages.他创建了一种新的外语教学体系。

The new system has had a disastrous effect on productivity.新制度对生产率产生了灾难性的影响。

Too much alcohol is bad for the system.过量饮酒对身体有害。

theory n.学说；理论theoretic adj.There are many theories about the origin of life.关于生命起源的学说有许多。

In this way they can better apply theory to practice.这样他们就能更好地把理论运用到实践中去。

Your plan sounds fine in theory it doesn’t work in practice.你的支配在理论上听起来不错，但在实践中无法实施。

2. violent adj. 猛烈的；激烈的；粗暴的violence n.They are launching a violent attack on the enemy.他们对敌人绽开了猛烈的进攻。

The class was shocked by his violent language.全班同学对他激烈的言辞感到震惊。

Children should not be allowed to watch violent movies.不应允许儿童看暴力电影。

高中英语Unit 4 Astronomy：the science of the stars练习与解析

Unit 4 Astronomy：the science of the stars 练习与解析1 规律总结1.In the lab,don’t anything without your teacher’s permission(允许).A.feelB.touchC.to touchD.feel like解析：表示“触摸”的动作时用touch,是一个行为动词；而feel是一个连系动词，后面常跟形容词或介词短语，构成feel (like sth.)。

此句意为“在实验室里，未经老师允许不许动任何东西”。

答案：B 试比较：Don’t touch anything in the exhibition.不要摸这展厅里的任何展品。

I don’t feel like eating now.我现在不想吃。

2.Before you go to school,put away your things and don’t them lying everywhere.A.letB.makeC.hadD.leave解析：表示“使……处于某种状态”，可以使用leave的复合结构：leave+sb./sth.+n./adj./done/doing/prep. phrase,此句表达“在你上学之前，把东西整理好，不要把它们扔的哪儿都是”。

答案：D 看例句：His parentsdied,whichleft him an orphan.他父母双亡，他成了孤儿。

I’m sorry I’ve left some questions unanswered.很抱歉，有些问题我没回答。

3.He said he would come to see the film,and he arrive before the lights .A.was supposed to;went outB.must;go outC.should;turn offD.have to;went out解析：表示“按照计划，应该做某事”，可以使用be supposed to do，“灯熄灭”可以使用go out；再注意时态的正确使用。

高中英语Unit 4 Astronomy：the science of the stars练习与解析

Unit 4 Astronomy：the science of the stars 练习与解析2 Ⅰ.单项选择答题向导1.He speaks English well indeed,but of course not a native speaker.A.as fluent asB.more fluent thanC.so fluently asD.much fluently than答案:C 要用副词修饰动词speak，不能用形容词，这是解题关键，首先排除A和B。

than 必须和比较级连用，much不是比较级，排除D。

not so/as...as 结构中间用形容词或副词原级;than要与比较级连用; 副词修饰动作动词。

←本题考查形容词和副词的比较。

2. with the size of the whole earth,the biggest ocean does not seem big at all.pareB.When comparingparingD.When compared答案:D when compared with...=when it is compared with...;此处可以用固定短语compared with/to作状语，表示“与……比起来”，而B、C选项中的comparing与主语之间的逻辑关系不同。

掌握状语从句的规律；v.-ed分词与v.-ing分词的区别。

←本题考查状语从句的省略。

3.What surprised me was not what he said but he said it.A.the wayB.in the way thatC.in the wayD.the way which答案:A not...but...连接两个并列结构，意为“不是……而是……”,what he said是一个名词性从句，相当于一个名词的内容，but后也应是一个名词、名词性短语或名词性从句来与其并列。

高中英语真题：Unit4 Astronomy-thescienceofthestars_4

Unit4 Astronomy:thescienceofthestars一、单词表词汇全查验——运用多媒体，提问默写词汇Ⅰ.阅读词汇(英译汉)[第一屏听写]1．astronomy n．天文学2．astronomer n. 天文学家3．solar adj. 太阳的；日光的4．billion pron.&n.& adj. 〈英〉万亿；〈美〉十亿5．carbon n. 碳6．dissolve vt.& vi. 溶解；解散7．acid n. 酸[第二屏听写]8．mammal n．哺乳动物9．dioxide n. 二氧化物10．extinct adj. 灭绝的；绝种的11．lessen vi.& vt. 减少；减轻12．weightlessly adv. 失重地13．solar system 太阳系14．carbon dioxide 二氧化碳_Ⅱ.高频词汇(汉译英)[第三屏听写]1．system n．系统；体系；制度2．religion n. 宗教；宗教信仰3．theory n. 学说；理论4．violent adj. 猛烈的；激烈的；强暴的5．atmosphere n. 大气层；气氛6．unlike prep. 与……不同；不像7．fundamental adj. 基本的；基础的[第四屏听写]8．presence n．出席；到场；存在9．harmful adj. 有害的10．chain n. 链子；连锁；锁链11．reaction n. 反应；回应12．multiply vi.& vt. 乘；增加13．oxygen n. 氧14．exist vi. 存在；生存15．thus adv. 因此；于是[第五屏听写]16．puzzle n．谜；难题vt.& vi. (使)迷惑；(使)为难17．biology n. 生物学18．biologist n. 生物学家19．gravity n. 万有引力；重力20．satellite n. 卫星；人造卫星21．gentle adj. 温和的；文雅的[第六屏听写]22．physicist n．物理学家23．climate n. 气候24．crash vi.& vt. 碰撞；坠落25．spaceship n. 宇宙飞船26．pull n．& vt. 拉(力)；拖；牵引力27．float vi.& vt. (使)浮动；(使)漂浮n. 漂浮物[第七屏听写]28．globe n．球体；地球仪；地球29．exhaust vt. 用尽；耗尽；使精疲力尽30．in_time 及时；终于31．lay_eggs 下蛋32．give_birth_to 产生；分娩33．in_one's_turn 轮到某人34．prevent_..._from 阻止；制止[第八屏听写]35．block_out 挡住(光线)36．cheer_up 感到高兴；感到振奋37．now_that 既然38．break_out 突发；爆发39．watch_out_for 密切注意；当心；提防40．get_the_hang_of 熟悉；掌握；理解二、单元核心考点初热身——提供语境，单元考点自测回顾(一)分类识记单词——用时少·功效高⇩(二)语段串记短语——不枯燥·兴趣高⇩(三)仿写用活句式——造佳句·表达高Unit4 Astronomy:thescienceofthestars一、单词表词汇全查验——运用多媒体，提问默写词汇Ⅰ.阅读词汇(英译汉)[第一屏听写]1．astronomy n．天文学2．astronomer n. 天文学家3．solar adj. 太阳的；日光的4．billion pron.&n.& adj. 〈英〉万亿；〈美〉十亿5．carbon n. 碳6．dissolve vt.& vi. 溶解；解散7．acid n. 酸[第二屏听写]8．mammal n．哺乳动物9．dioxide n. 二氧化物10．extinct adj. 灭绝的；绝种的11．lessen vi.& vt. 减少；减轻12．weightlessly adv. 失重地13．solar system 太阳系14．carbon dioxide 二氧化碳_Ⅱ.高频词汇(汉译英)[第三屏听写]1．system n．系统；体系；制度2．religion n. 宗教；宗教信仰3．theory n. 学说；理论4．violent adj. 猛烈的；激烈的；强暴的5．atmosphere n. 大气层；气氛6．unlike prep. 与……不同；不像7．fundamental adj. 基本的；基础的[第四屏听写]8．presence n．出席；到场；存在9．harmful adj. 有害的10．chain n. 链子；连锁；锁链11．reaction n. 反应；回应12．multiply vi.& vt. 乘；增加13．oxygen n. 氧14．exist vi. 存在；生存15．thus adv. 因此；于是[第五屏听写]16．puzzle n．谜；难题vt.& vi. (使)迷惑；(使)为难17．biology n. 生物学18．biologist n. 生物学家19．gravity n. 万有引力；重力20．satellite n. 卫星；人造卫星21．gentle adj. 温和的；文雅的[第六屏听写]22．physicist n．物理学家23．climate n. 气候24．crash vi.& vt. 碰撞；坠落25．spaceship n. 宇宙飞船26．pull n．& vt. 拉(力)；拖；牵引力27．float vi.& vt. (使)浮动；(使)漂浮n. 漂浮物[第七屏听写]28．globe n．球体；地球仪；地球29．exhaust vt. 用尽；耗尽；使精疲力尽30．in_time 及时；终于31．lay_eggs 下蛋32．give_birth_to 产生；分娩33．in_one's_turn 轮到某人34．prevent_..._from 阻止；制止[第八屏听写]35．block_out 挡住(光线)36．cheer_up 感到高兴；感到振奋37．now_that 既然38．break_out 突发；爆发39．watch_out_for 密切注意；当心；提防40．get_the_hang_of 熟悉；掌握；理解二、单元核心考点初热身——提供语境，单元考点自测回顾(一)分类识记单词——用时少·功效高⇩(二)语段串记短语——不枯燥·兴趣高⇩(三)仿写用活句式——造佳句·表达高。