（新教材）2019-2020学年人教版英语必修第三册课件：UNIT 4 PERIOD Ⅳ　LISTENING AND TALKING .ppt

1、人教版英语必修第三册返回导航下页上页 Period Listening and Talking&Reading for Writing人教版英语必修第三册返回导航下页上页课前 自主学习课堂 合作探究写作 能力提升课后 限时训练名著赏析素养提能单元达标检测人教版英语必修第三册返回导航下页上页 新知探求.根据词义写出正确的单词 1_ n设施；设备 2_ adj.热衷的；渴望的 3_ adj.肤浅的；浅的 4_ n模式；图案；模范 5_ n监视器；监测仪vt.监视；监测；监控 6_ n泡沫橡胶；泡沫 7_ n枕头 8_ n智能手机facilitykeenshallowpattern monitorf

2、oampillowsmartphone人教版英语必修第三册返回导航下页上页.词汇拓展 1_ n地球；世界；地球仪_ adj.全球的 2_ vt.&vi.论证；争辩；争论_ n争论；争吵；论点 3_ adj.致命的；灾难性的_ adv.致命地；不幸地 4_ n分析；分析结果_(pl.)分析；分析结果 5_ adj.定期的；经常的；正常的_ adv.经常；定期地globeglobalargueargumentfatalfatallyanalysisanalysesregularregularly人教版英语必修第三册返回导航下页上页analysisregularlykeenshallowargume

3、nt人教版英语必修第三册返回导航下页上页.根据汉语意思补全短语 1make _ difference起作用；做出改变 2fight _与斗争 3result _导致；造成 4_ number of许多 5as _ result所以；结果(是)aagainstinaa人教版英语必修第三册返回导航下页上页 6meet the requirements _满足要求 7_present目前 8provide _ sb.提供生活所需 9_ closing最后 10run _用完；耗尽foratforinout人教版英语必修第三册返回导航下页上页【词汇攻略】1“动词out”短语 work out 算出，制

4、定出；let out发出，放出，泄露，出租；look out 当心，小心；turn out 结果证明是；put out扑灭，生产，出版；come out出来，出版，发行；break out(战争、火灾、)爆发；make out理解，辨认；set out着手，出发，起程；hand out 分发；die out 灭绝；leave out 省略，遗漏；find out 发现；figure out 算出，了解，弄明白；point out 指出；watch out 注意；give out 放出，发出，耗尽，公布人教版英语必修第三册返回导航下页上页 2表示“许多”的词组(1)修饰可数名词 many；man

5、y a；a great/good many；a great/good/large number of；dozens of；scores of；quite a few(2)修饰不可数名词 a great/good deal of；large/great amounts of；a large/great amount of；a large sum of；much (3)修饰可数或不可数名词 a lot of/lots of；plenty of；a large/great quantity of；large/great quantities of人教版英语必修第三册返回导航下页上页 语篇研析.速读文

6、章并完成下面的问题 1What is the authors attitude towards exploring space according to the text?AOpposed.BSupportive.CDoubtful.DUncertain.答案：B人教版英语必修第三册返回导航下页上页 2What is the conclusion of the text about exploring space?_.细读文章后判断下列句子的正误(T/F)1Some people think that we should spend time and money feeding the wor

7、lds poor and finding immediate solutions to other problems instead of wasting them on space exploration.()2There are lots of satellites orbiting Earth which can help fight against world hunger.()Exploring space should continue to provide new and better solutions to peoplesproblems.T T 人教版英语必修第三册返回导航

8、下页上页 3Space exploration has already promoted technological improvements that benefit only those who have been into space.()4 In order to provide for such a rapidly increasing population,scientists have found other planets，for example Mars,which can be our new home.()F F 人教版英语必修第三册返回导航下页上页.句式分析 1 Ins

9、tead,we should feed the worlds poor and find immediate solutions to other problems,such as pollution and fatal diseases.However,others feel this is a shallow view which fails to realise how exploring space helps us.分析immediate solutions：直接方法。“which fails to realise how exploring space helps us”是“a s

10、hallow view”的_从句，这个从句中的“how exploring space helps us”是“realise”的_从句。翻译_ _定语 宾语而是我们应该养活世界上的穷人，并找到解决其他问题的直接方法，例如污染和致命疾病。然而，其他人认为这是一个肤浅的观点，没有意识到探索太空是如何帮助我们的。人教版英语必修第三册返回导航下页上页 2As a result,spacebased science has helped farming in its efforts to grow enough food to feed Earths increasing population.分析“t

11、o grow enough food”是宾语补足语；“to feed Earths increasing population”是 _状 语；“in its efforts”是介词短语作状语。翻译_ _目的因此，天基科学帮助农业努力种植足够的粮食来养活地球上不断增长的人口。人教版英语必修第三册返回导航下页上页 3Seeing pictures of our planet as an island in a black sea made people realise that our planets resources are limited.分析“Seeing pictures of our

12、planet as an island in a black sea”是 _短 语 作 主 语；“that our planets resources are limited”是_从句。翻译_ _动名词 宾语把我们星球的图片看作黑色海洋中的一个岛屿使人们意识到我们星球的资源是有限的。人教版英语必修第三册返回导航下页上页 4Highend products around the world are made to a higher standard now because of advanced technology which was first created to meet the req

13、uirements for space exploration.分析“be made to a higher standard”意为“按照更高的标 准 制 造”；“which was first created to meet the requirements for space exploration”是_从句。翻译_ _定语世界各地的高端产品现在按照更高的标准制造出来是由于最早为满足太空探索的需要而创造的先进技术。人教版英语必修第三册返回导航下页上页.概要写作 根据P44课文内容写一篇60词左右的内容概要。_ _ _ _人教版英语必修第三册返回导航下页上页 答案：Some people a

14、rgue that we should stop wasting time and money exploring space.However,others feel this is a shallow view which fails to realise how exploring space helps us.Firstly,exploring space has already made a difference in the fight against world hunger.Secondly,space exploration has already promoted techn

15、ological improvements that benefit us all.Finally,sending astronauts into space has helped people to think about the worlds problems and even to find ways to solve them.Therefore,exploring space should continue so as to provide new and better solutions to peoples shortterm and longterm problems.人教版英

16、语必修第三册返回导航下页上页【学而思】What is your opinion on exploring space?_ _ _人教版英语必修第三册返回导航下页上页 1argue vt.&vi.论证；争辩；争论 P44教 材 原 文 Some people argue that we should stop wasting time and money exploring space.有些人认为我们应该停止把时间和钱浪费在探索太空上。归纳拓展(1)argue for/against 据理主张/反对 argue that.(should)do sth.主张 argue with sb.on/ab

17、out/over sth.与某人争辩某事 argue/talk/persuade sb.into/out of doing sth.说服某人做/不做某事(2)beyond argument 无可争辩人教版英语必修第三册返回导航下页上页 Gun control is a subject about/over which Americans have argued for a long time.控制枪支是美国人争论了很久的问题。We all find both of his arguments convincing and interesting.我们都觉得他的两个观点令人信服而且有趣。Many

18、 experts argue for the ban of riding motorcycles in the city.许多专家主张禁止在城市中骑摩托车。人教版英语必修第三册返回导航下页上页 即学即练(1)单句语法填空 It _(argue)that steps be taken to make the road safer.I argue that everyone _(try)to help those in need.(2)一句多译 我们想方设法劝说他接受我们的建议，但都是徒劳。We tried many ways _，but in vain.(argue)_，but in vain.

19、(persuade)_，but in vain.(talk)is arguedtryto argue him into following our advice We tried many ways to persuade him into following/to follow our advice We tried many ways to talk him into following our advice 人教版英语必修第三册返回导航下页上页 2make a difference 起作用；做出改变 P44教材原文Firstly,exploring space has already m

20、ade a difference in the fight against world hunger.首先，探索太空已经在战胜世界饥饿方面发挥了作用。归纳拓展 make a difference to.对有作用/有影响 make some/any/no/little difference(to.)(对)有/没作用或影响 tell the difference(between.and.)辨别/区分(与)人教版英语必修第三册返回导航下页上页 Only when we match our words with actions can we make a difference in whatever

21、we hope to accomplish.只有我们言行一致才能对所要做的事情起到作用。It shows that a knowledge of first aid can make a realdifference.这说明了急救知识的确能发挥重要的作用。人教版英语必修第三册返回导航下页上页 即学即练(1)单句语法填空 Hannah is one of many examples of young people who are making a _(different)in the world.I can never tell the _(different)between the twins

22、.Whether he could get support from his parents made a great difference _ the plan.(2)完成句子 每个人都能通过做好工作对我们的社会起到重要作用。Everyone _ by performing his job well.differencedifferencetocan make a great difference to our society 人教版英语必修第三册返回导航下页上页 3result in导致；造成 P44教材原文It has directly resulted in the many sate

23、llites that now orbit Earth.它直接导致了现在环绕地球运行的许多卫星。归纳拓展(1)result from 由造成；因而产生(2)as a result 结果 as a result of 由于的结果 without result 没有结果；白费(力气)人教版英语必修第三册返回导航下页上页 People have better access to health care than they used to,and theyre living longer as a result.相比以前，人们能得到更好的医疗保健，因此更长寿。This often results in

24、 people losing confidence in their driving skills.这种情况通常导致人们对他们的驾驶技能失去信心。人教版英语必修第三册返回导航下页上页 即学即练(1)单句语法填空 We tried hard，but _result.He was late _ a result of the rain.His laziness result _ his failure.(2)一句多译 就我所知，这个事故是由他的粗心大意导致的。As far as I know，his carelessness _ the accident.As far as I know，the

25、accident _ his carelessness.withoutasinresulted in resulted from 人教版英语必修第三册返回导航下页上页 4provide v提供；供应；给予；规定 P44教 材 原 文 After careful analysis,the scientists canprovide useful recommendations and advice for farmers.经过仔细分析，科学家们可以为农民提供有用的建议。人教版英语必修第三册返回导航下页上页人教版英语必修第三册返回导航下页上页 Though he has two children

26、to provide for,he manages to provide them with all the comforts.尽管他要抚养两个孩子，他设法给他们提供所有的舒适条件。Provided/Providing that there is money on you,you can buy whatever you like.如果你身上有钱，你可以买你喜欢的任何东西。人教版英语必修第三册返回导航下页上页 即学即练 完成句子 如果您能提供给我更多具体的信息，我将不胜感激。I would appreciate it if _ _.you could provide more specific

27、 information for me/youcould provide me with more specific information 人教版英语必修第三册返回导航下页上页 5effort n气力；努力；费力的事；艰难的尝试；试图；尽力；有组织的活动 P44教材原文As a result,spacebased science has helped farming in its efforts to grow enough food to feed Earths increasing population.结果，天基科学已经帮助农业努力种植足够的粮食来养活地球上不断增长的人口。归纳拓展(1

28、)make an effort/efforts/every effort to do sth.(尽一切)努力做某事 spare no effort to do sth.不遗余力地做某事(2)with effort 努力地 without effort 不费力地，容易地人教版英语必修第三册返回导航下页上页 More efforts,as reported,will be made in the years ahead to accelerate the supplyside structural reform.据报道，未来几年将会付出更多的努力来加快供给侧结构性改革。I am certain t

29、hat with your great efforts,you will enjoy a colorful and fruitful life here.我相信有了你的巨大努力，你就会在这里享受多姿多彩、硕果累累的生活。The traffic problems have severely affected economic development,so we must make efforts to solve them.交通问题已经严重影响了经济的发展，因此，我们必须努力解决这些问题。人教版英语必修第三册返回导航下页上页 即学即练 完成句子 干净的空气非常重要，因此政府不遗余力地防止空气污染

30、。Clean air is very important,so the government.spares no effort to prevent air pollution人教版英语必修第三册返回导航下页上页 6advance adj.预先的，在前的v.前进，进展；促进；提前n.前进，进展，进步 P44教 材 原 文 Highend products around the world are made to a higher standard now because of advancedtechnology which was first created to meet the requ

31、irements for space exploration.世界各地的高端产品现在按照更高的标准制造出来是由于最早为满足太空探索的需要而创造的先进技术。人教版英语必修第三册返回导航下页上页 归纳拓展(1)in advanceahead of time 提前；预先 make an advance in sth.在某方面有进步(2)advanced adj.先进的；高级的 名师点津advance作形容词时，意为“预先的，在前的”；advanced意为“高级的；先进的”。人教版英语必修第三册返回导航下页上页 He would call in advance to make sure there w

32、as no alcohol at the party.他总提前打电话，确保聚会中不喝酒。In recent years,we have advanced greatly in our knowledge of the universe.近几年，我们对宇宙的认识取得了很大的进步。Thanks to the advanced technology,we live in an age of better communication.多亏了先进的技术，我们生活在一个先进的通信时代。人教版英语必修第三册返回导航下页上页 即学即练 一句多译 有了先进的科技，将来科学家会在科技方面取得更多的进步。With

33、advanced technology,scientists _ in the future.With advanced technology,_ by scientists in the future.will make more advances in technology more advances in technology will be made人教版英语必修第三册返回导航下页上页 7present vt.陈述；提出(观点、计划等)；呈现；赠送；颁发；介绍adj.出席的，在场的；现在的，当前的n.礼物；目前 P44教材原文The greatest attention at pres

34、ent is on Mars because it is closer to Earth.In the future,humans may live on both planets.目前最受关注的是火星，因为它离地球较近。在未来，人类可能生活在两个行星上。人教版英语必修第三册返回导航下页上页 归纳拓展(1)present sb.with sth.向某人赠送/颁发某物 present sth.to sb.向某人提供某物/向某人赠送某物(2)be present at.出席(3)at presentat the present time 目前，现在 for the present 目前；暂时 名师

35、点津present 用作形容词，表示“在场的”时，通常作表语或后置定语；表示“现在的”时，常用作前置定语。人教版英语必修第三册返回导航下页上页 The Grammy Awards are presented every year in the music industry in the United States.格莱美奖在美国音乐界每年颁奖一次。We do not have any more information at the present time/at present.目前我们没有进一步的消息。All the people present at the party were his

36、supporters.所有出席聚会的人都是他的支持者。人教版英语必修第三册返回导航下页上页 即学即练 一句多译 在教师节，我的学生送给我一些鲜花。On Teachers Day,_.On Teachers Day,_.my students presented me with some flowers my students presented some flowers to me 人教版英语必修第三册返回导航下页上页 如何写议论文 议论文通过议论或说理来表达作者见解和主张。作者对某一问题持有一种看法，为了使读者同意自己的看法，提出若干理由，企图说服他人。高中英语议论文的写作要注意以下几点：1

37、论点要鲜明、确切，一篇议论文只能有一个中心论点，论点一般在开头提出，然后加以论证。人教版英语必修第三册返回导航下页上页 2论据要充分、可靠。一般是以事实为论据，也可以利用成语、格言、名人名言作为论据。3论证要严密、得法。归纳法和演绎法是议论文常用的论证方法。归纳法以例子为基础，从几个例子和现象中，归纳出某种道理和看法。演绎法以一个或多个看法为基础，从一般论断，演绎到不同事例，再加以论述，最后再回到一般论断上来。人教版英语必修第三册返回导航下页上页【常用表达】第一部分，套用相关句型来引出议论。1Recently,our class have had a heated discussion abo

38、ut whether.2These years,some students are interested in.3Now,some people hold the view that.4Im writing to tell you about the discussion we have had about.5There are two opinions on it.6Opinions are divided on the question.人教版英语必修第三册返回导航下页上页 第二部分，采用关联词和句型列举事实依据，采用正反对比或归纳推理的方法，证明所持观点的正确性及表明其所持的态度。1 B

39、esides/In addition/Apart from it/Whats more/Above all.2For example./There are.，such as.and so on.3On one hand.on the other hand.4First.Second.Third.5On the contrary/However/While./But.人教版英语必修第三册返回导航下页上页 6At the same time,we should.7If.，I believe we will.8As we see/As we all know/As far as I know，.9O

40、f all students,40%of them think.,but others do not agree.10Some people believe that.,but others say/consider that.11Some students are for the idea/are in favor of it/agree with it,while/but/however others are against it/disagree with it.人教版英语必修第三册返回导航下页上页 第三部分，引用表示因果关系的关联词语、总结性的语句强调和重申提出的观点，或者引用某些特定

41、的短语和句型来揭示观点、礼貌地征求对方的建议。1In a word，./In short，./In brief，.2As a result，./Therefore，.3No doubt doing something is./There is no doubt that.4So in a word,we should.，only in this way can we.5Generally speaking,most students think we should.人教版英语必修第三册返回导航下页上页 6In fact/As a matter of fact,we can.7So,for so

42、mething,I suggest that we should do.8In my opinion,I think.9I have my own view about it,and I think.10Personally,I believe it is.11Now,we really dont know what to do about it.Could you tell us some good advice and help us out?人教版英语必修第三册返回导航下页上页【写作模板】(一)不同观点列举型(选择型)There is a widespread concern over

43、the issue that(作文题 目)_.But it is well known that the opinion concerning this hot topic varies from person to person.A majority of people think that(观点一)_.In their views there are two factors contributing to this attitude as follows:in the first place,(原因一)_Furthermore,in the second place,(原因二)_.So i

44、t goes without saying that(观点一)_人教版英语必修第三册返回导航下页上页People,however,differ in their opinions on this matter.Some people hold the idea that(观点二)_.In their point of view,on the one hand，(原因一)_.On the other hand,(原因二)_.Therefore,there is no doubt that(观点二)_As far as I am concerned,I firmly support the vie

45、w that(观点一或二)_.It is not only because _，but also because _.The more _，the more _.人教版英语必修第三册返回导航下页上页(二)利弊型的议论文Nowadays,there is a widespread concern over(the issue that)(作文题目)_.In fact,there are both advantages and disadvantages in(题 目 议 题)_.Generally speaking,it is widely believed there are several

46、positive aspects as follows.Firstly,(优点一)_.And secondly(优点二)_人教版英语必修第三册返回导航下页上页Just As a popular saying goes,“every coin has two sides”，(讨论议题)_ is no exception,and in other words,it still has negative aspects.To begin with,(缺点一)_.In addition,(缺点二)_To sum up,we should try to bring the advantages of(讨

47、论议题)_ into full play,and reduce the disadvantages to the minimum at the same time.In that case,we will definitely make a better use of the(讨论议题)_人教版英语必修第三册返回导航下页上页(三)答题性议论文Currently,there is a widespread concern over(the issue that)(作文题目)_.It is really an important concern to every one of us.As a re

48、sult,we must spare no efforts to take some measures to solve this problem.As we know that there are many steps which can be taken to undo this problem.First of all,(途径一)_.In addition,another way contributing to success of solving the problem is(途径二)_Above all,to solve the problem of(作文题目)_，we should

49、 find a number of various ways.But as far as I am concerned,I would prefer to solve the problem in this way,that is to say,(方法)_人教版英语必修第三册返回导航下页上页(四)谚语警句性议论文It is well know to us that the proverb:“(谚语)_”has a profound significance and value not only in our job but also in our study.It means(谚语的含义)_.

50、The saying can be illustrated through a series of examples as follows.A case in point is(例子)_.Therefore,it is goes without saying that it is of great importance to practice the proverb(谚语)_人教版英语必修第三册返回导航下页上页 With the rapid development of science and technology in China,an increasing number of people

51、 come to realize that it is also of practical use to stick to the saying:(谚语)_.The more we are aware of the significance of this famous saying,the more benefits we will get in our daily study and job.人教版英语必修第三册返回导航下页上页 近年来，学生越来越广泛地使用电子词典，这既给学生带来了便利，也给学生带来了一些负面影响。请你根据以下要求写一篇英语短文：1电子词典的优点；2电子词典的缺点；3你的

52、观点和结论。注意：词数80左右。_人教版英语必修第三册返回导航下页上页【审题谋篇】第一步 明确要求 该写作属于利弊型的议论文，故以第三人称为主；时态以一般现在时为主。第二步 确定段落 本文应该至少分四段：Para.1 提出话题。Para.2 使用电子词典的好处。Para.3 使用电子词典的坏处。Para.4 你的观点和结论。人教版英语必修第三册返回导航下页上页 第三步 提炼要点 1The discussion about electronic dictionaries has never stopped in the past few years.近几年来，关于电子词典的讨论从未停止过。2An

53、 electronic dictionary has lots of advantages.电子词典有很多优点。人教版英语必修第三册返回导航下页上页 3The negative effects of an electronic dictionary are also obvious.电子词典的负面影响也很明显。4It can be most helpful to us in many respects so long as we can make proper use of it.只要我们能适当地利用它，它在许多方面对我们都会很有帮助。人教版英语必修第三册返回导航下页上页 第四步 句式升级 1

54、电子词典有很多优点，最大的优点就是它的方便。(一般表达)An electronic dictionary has lots of advantages.The biggest is its convenience.(高级表达)An electronic dictionary has lots of advantages,_ the biggest is its convenience.of which人教版英语必修第三册返回导航下页上页 2.现在，我们可以清楚地看到，电子词典本身并不是有益或有害的。(一般表达)Now,we can see that an electronic dictiona

55、ry is not beneficial or harmful in itself.(高级表达)Now,we can see it clearly that an electronic dictionary is _ in itself.neither beneficial nor harmful人教版英语必修第三册返回导航下页上页【参考范文】The discussion about electronic dictionaries has never stopped in the past few years.An electronic dictionary has lots of advan

56、tages,of which the biggest is its convenience.Whats more,they can pronounce the words clearly.Last but not least,more and more students can afford them.人教版英语必修第三册返回导航下页上页However,the negative effects are also obvious.To begin with,some students rely too much on them.In the second place,some explanati

57、ons are not so accurate.Now,we can see it clearly that an electronic dictionary is neither beneficial nor harmful in itself.The key lies in the usersso long as we can make proper use of it,it can be most helpful to us in many respects.人教版英语必修第三册返回导航下页上页【亮点点评】本文结构严谨。首段提出一个长时间争论的话题；第二段中指出该事物的优点；第三段阐述缺

58、点；第四段首句下结论，表明此事物本身无对错，第二句指出关键在于使用者，即如果合理使用，就会从中受益。文章的论点和结论清楚明了，论据充分有力。在文字的运用上，本文词汇丰富，衔接顺畅而不乏高级词汇。例如afford,rely too much on和last but not least等的运用，恰当而有力。人教版英语必修第三册返回导航下页上页 暑假即将来临。你班同学讨论了假期计划，提出不同看法，请根据提示写一篇有关讨论的英语短文，并谈谈你的看法。优点缺点待在家中花费少、舒适方便不能亲身了解外界外出旅游增长知识、开阔眼界花费多、旅途不便人教版英语必修第三册返回导航下页上页 注意：1.词数80左右(不

59、含已写好的部分)；2短文必须包括表中所列要点，可根据内容分段表述；3可适当增加细节，以使行文连贯。参考词汇：眼界horizon(或view)The summer holiday is coming.Our class have had a discussion about what to do during the holiday._ _人教版英语必修第三册返回导航下页上页课后 限时训练人教版英语必修第三册返回导航下页上页 佳作/名著赏析素养提能Despite the fact that its over a century old,Einsteins theory of general re

60、lativity is our current understanding of how gravity operates.In this view,space and time are merged together into a unified framework known as(no surprises here)spacetime.This spacetime isnt just a fixed stage but bends and flexes in response to the presence of matter and energy.人教版英语必修第三册返回导航下页上页T

61、hat bending,warping and flexing of spacetime then goes on to tell matter how to move.In general relativity,everything from bits of light to speeding bullets to blasting spaceships want to travel in straight lines.But the spacetimearound them is warped,forcing them all to follow curved trajectoriesli

62、ke trying to cross a mountain pass in a straight line,but following the peaks and valleys of the topography.What we call“gravity”is then the result of all that warping of spacetime,and the fact that moving objects have no choice but to follow the curves and undulations of spacetime around it.人教版英语必修

63、第三册返回导航下页上页And like any other flexible surface,spacetime doesnt just bend and flex;it also vibrates.If you stand on a trampoline,youll bend the trampoline down.If anyone tries to walk on the trampoline near you,they will feel your“gravity”and be forced to follow a curving path.But far enough away fr

64、om you,they wont even notice your gravitational influence.人教版英语必修第三册返回导航下页上页 重力波尽管爱因斯坦的广义相对论已有一个多世纪的历史，但它是我们目前对引力如何运作的理解。在这一观点中，空间和时间被合并成一个统一的框架，称为(这里没有惊喜)时空。这个时空不只是一个固定的阶段，而是随着物质和能量的存在而弯曲变形。时空的弯曲，扭曲和变形，然后继续告诉物质如何移动。在广义相对论中，从微光到高速子弹，再到爆炸的宇宙飞船，所有的东西都想沿直线飞行。但它们周围的时空是扭曲的，迫使它们都遵循弯曲的轨迹就像试图以直线穿过山口，却追随地形的峰峦和山谷。人教版英语必修第三册返回导航下页上页我们称之为“引力”是所有时空扭曲的结果，是运动物体别无选择只能沿着它周围的时空曲线和波动。和任何其他的柔性表面一样，时空不仅仅是弯曲和变形，它也会振动。如果你站在蹦床上，你会把蹦床弄弯的。如果有人试图在你附近的蹦床上行走，他们会感觉到你的“重力”，被迫沿着弯曲的路径走。但离你足够远，他们甚至不会注意到你的引力影响。人教版英语必修第三册返回导航下页上页单元达标检测