中考初中英语条件状语从句分析全,含练习及答案

1、中考初中英语条件状语从句分析（全，含练习及答案）九人状语从句.状语从句（对网状谢从句地打桢谓从句原内状的从何目的状由从旬<结果状翁从何条件状诩从句方式找用从句让生状语从句二51比枚秋诩从旬本节课我们学习其中的条件状语从句。目录：一、概念；二、时态；三、条件状语从句的引导词；（一）if引导的条件状语从句；（二）unless引导的条件状语从句；（三）as/solongas引导的条件状语从句；（四）once引导的条件状语从句；四、条件状语在句中的位置；五、转换；六、拓展；七、综合练习；一、概念在某种条件下，可能发生某事。由if/unless等引导的表示条件的句子，就叫条件状语从句。e.g:If

2、youputwoodintowater,itfloats.如果你把木头放到水里，它就会浮起来。Unlessyoukeepicecreaminafridge,itmelts.除非你把冰淇淋放进冰箱，不然它就会融化。二、时态1.当丰句和从句所表示的杲原理、客观，真理、热则时，丰句杲一般现在时（包括祈使句和含有情态动词can/may/must等），从句也要用一般现在时。例如：1）Ifyouputapieceofpaperintowater,itgetswet.如果你把一张纸放进水中，它会变湿。（原理）2）Becarefulifyoucrosstheroad.（祈使句）3）Youmustseethed

3、octorifyouareill.（含有情态动词）2.在if条件状语从句中，如果从句谈论的是一个可能发生的事实及其产生的相关结果，主句用一般将来时，从句用一般现在时。e.g:1） Ifitrainstomorrow,wewillnotgotothezoo.2） Ifyougotobedearlier,youwon'tfeeltiredinthemorning.3） 如果从句用现在进行时或现在完成时，主句需用一般将来时。1） IfyouarelookingforPeteryou'upsfinidshim如果你是在找彼得，上楼就会找到他。2） Ifyouhavefinisheddi

4、nnerI'llaskthewaiterforthebill.如果你吃完了，我就叫服务生来算账。三、条件状语从句的引导词（一）if引导的条件状语从句引导条件状语从句最常用的连词是if,常见的if条件状语从句表示在某条件下，某事很可能发生，条件是可能存在的，主句中某种情况发生的概率也是很高的。如：Ifyouaskhim,hewillhelpyou.如果你请他帮忙，他会帮你的。Ifyoufailintheexam,youwilllethimdown.如果你考试不及格，你会让他失望的。Ifyouhavefinishedthehomework,youcangohome.如果你作业做完了就可以回

5、家了。另外，if从句还表示不可实现的条件或根本不可能存在的条件，也就是一种虚拟的条件或假设。从句多用一般过去时或过去完成时，表示对现在或过去的一种假设。如:IfIwereyou,Iwouldinvitehimtotheparty.如果我是你，我会邀请他参加聚会。IwouldhavearrivedmuchearlierifIhadnotbeencaughtinthetraffic.要不是交通堵塞，我本会来得早一些。另外还要注意if条件句的时态搭配1. if从句用一般现在时，主句用一般将来时Ifheruns,he'llgetthere做用地用跑的，他就会及时赶到那儿。Thecatwills

6、cratchyouifyoupullhertail.如果你拉猫的尾巴，它就会抓你。2. if从句用一般现在时，主句用may/might/canIfthefoggetsthicker,theplanemay/mightbediverted.如果雾在大一些，飞机可能就会改在别的机场降落。Ifitstopssnowing,wecangoout.如果雪停了，我们就可以出去。3. if从句用一般现在时，主句用must/shouldIfyouwanttoloseweight,youmust/shouldeatlessbread.如果你想减肥，你必须少吃面包。4. if从句用一般现在时，主句用一般现在时If

7、youheatice,itturnstowater.（也可用willturn）如果把冰加热，它就会化成水。5. if从句用现在进行时，主句用一般将来时IfyouarelookingforPeter,you'llfindhimupstairs.如果你是在找彼得，上楼就会找到他。6. if从句用现在完成时，主句用一般将来时Ifyouhavefinisheddinner,I'llaskthewaiterforthebill.如果你吃完了，我就叫服务生来算账注意：学习了"if"引导的条件状语从句的用法，现在进行总结一下：1 一一一if条件句不一般:几小要点记心间;I

8、条件句,放在前，运号要放句巾通条件句表可能.三句亲用带来时；条本旬去事久.三句常用现在H夫在if引导的条件状语从句中，如果从句谈论的是一个有可能发生的事实及其产生的相关的结果，主句用一般将来时态，从句用一般现在时态。如：Wecanwalkthereifwecan'tfindabus.Ifitrainstomorrow,wewillnotgotothezoo.Whatwillyoudoifyoufindapandaindanger?如果if条件句谈论的是重复发生和预示要发生的情景和事件，则主从句大多用一般现在时态。如：Ifbearsareindanger,theyattackpeople

9、.（二）unless引导的条件状语从句unless的意思是如果不，除非。可与if.not互换。YouwillfailinEnglishunlessyouworkhard.你英语考试会不及格的，除非你更加努力。同义句转换：Workhard,oryouwillfailinEnglish.一YouwillfailinEnglishworkhard.答案ifyoudon't（三）as/solongas引导的条件状语从句as/solongas意思是只要“Solongasyou'rehappy,Iwillbehappy.只要你高兴，我就高兴。（四）once引导的条件状语从句once引导的条

10、件状语从句，意为旦.，就”，从句可置于主句前或后Onceyoubegin,neverstop.一旦开始，就绝不要停止Mathsiseasytolearnonceyouunderstandtherules.一旦你理解了规则，数学就不难学了。提示：在条件状语从句中，用一般现在时代替一般将来时，用一般过去时代替过去将来时。Iftheweatherisbadnextweek,we'llputofftheclimbing.如果下周天气不好，我们将推迟爬山。FathertoldmeifIworkedhardhewouldbuymeagift.爸爸告诉我，如果我努力学习，他会给我买一份礼物。四、条件

11、状语在句中的位置大多数情况下，if/unless从句既可以放在主句之前也可以放在主句之后。当从句置于主句之前时，常用逗号与主句隔开。Itfloatsifyouputwoodintowater.=Ifyouputwoodintowater,itfloats.五、转换1、当主语是you时,if弓I导的条件状语从句可与祈使句+and/or+简单句”进行句型转换。and表示句意顺承；or表示转折，意为否则“。例如：Takecare,oryou'llfalloffthetree.小心，否则你会从树上掉下来。=Ifyoudon'ttakecare,you'llfalloffthet

12、ree.2.unless也可弓I导条件状语从句，相当于if.not,意思是如果不、除非例如：YouwillfailinMathunlessyouworkharder.=YouwillfailinMathifyoudon'tworkharder.你要是不再加把劲儿，数学考试就不及格了。六、拓展1. if从句还可以表示不可实现的条件或根本不可能存在的条件.也就是一种虚拟的条件或假设，从句多用一般过去时或过去完成时，主句则用虚拟语气。1) IfIwereyou,Iwouldinvitehimtotheparty.2) IwouldhavearrivedmuchearlierifIhadnot

13、beencaughtinthetraffic.2. if表示是否”时引导宾语从句：意思同whether.Idon'tknowifhecancome.Ifhecomes,I'lltellyouatonce.以下请同学们来做一些练习吧！im已条件状语从句的时态练习I.l.Lfyou(feel)tired:you(have)xqhaveares.2. Rbecehe(see)thefilmifhe(have)time?3. Ifthere(be)fewertrees,there(be)morepalluticn!4.He(dress)moreCA5uallyifKe(notwork)

14、onweekends.,5.IfMaida(live)alone,she(keep)aparrot.- 6.Lina(buy)anewdressiftheoldone(be)outofstyle.- 7Thetwins(fight)ifthey(argue).- S.I(have)abakesaleifIIpeed)moneyfareducation.,9.Perer(send)meabeautifulsouvenirifhe(lour)Spain；10.IfMrGreen(say)Iamhard-working,myparents(feel)gild.答案：1.feel;have2.will

15、;he;has3.are;willbe4.willdress;doesn'twork5.lives;willkeep6.willbuy;is7.willfight;argue8.willhave;need9.willsend;tours10.says;willfeelKD.Becausei!7餐综合练习I八I'()1.Youtv口口ca.tchthelastbusyouhuxryup.jAifB.whenCunless：()2.Youwillbeoutofda.teyoukeepcnstudyingfiomtimetotime.AuntilBalthoughCorD.unles

16、s()4一You-won'tcalculatefastertkarcomputersyouhaveareally«amazingbrain,IA.ifB.utiltsjC.whenD.Because()4.Youwon'tfindagoodsolutionyouputyourheartinto«projectonen-iroimient.A.unlessB_ifC.thoughD.because()5.itrain*thisSamrday,we?llhaveapicnicinCenturyPark*IA.ifB.UnlessC.BecauseDWhen()6

17、.wedon'tsaveix'ater'ehaenowatertodrinkoneday.IA_WhetherRWhenC.AlthoughDIftYouwillfkiltobuythetrainticketifyoudon'tbookitonlineearly.(保持句子意思不变)Youbeabletobuythetrainticketyoubookitonlineeaiiv,i.S.Addanendingtoyourscoi;andyou11finditmoreamactive(保才寺句子意思-不变),Youfindvourstort'lessatt

18、rsicnvevouaddajiendingtoit.I_二二二二;二答案：1.C2,D3.B4.A5.B6.D7.won'tnless8.will;unless、英语阅读理解专项练习试卷1 .阅读理解SometimesIreallydoubtwhetherthereislovebetweenmyparents.Everydaytheydon'tactintheromanticwaysthatIreadinbooksorIseeonTV.Intheiropinion,"Iloveyou"istooluxuriousforthemtosay.Sendingfl

19、owersonValentine'sDayisevenmoreoutofthequestion.Oneday,mymotherwassewingaquilt(被子)."Mom,Ihaveaquestiontoaskyou.""What?"shereplied,stilldoingherwork."IstherelovebetweenyouandDad?"Mymotherstoppedherworkandraisedherheadwithsurpriseinhereyes.Thenshesaid,"Susan,look

20、atthisthread.Sometimesitappears,butmostofitdisappearsinthequilt.Thethreadreallymakesthequiltstronganddurable.Iflifeisaquilt,thenloveshouldbeathread.Loveisinside."IlistenedcarefullybutIcouldn'tunderstanduntilthenextspring.Atthattime,myfathersuddenlygotsickseriously.Aftertheywerebackfromtheho

21、spital,mymotherhelpedhimwalkslowlyonthebeautifulcountryroadeverymorning.Myfatherhadneverbeensogentle.Butaftertwomonthshestillcouldn'twalkbyhimself.Allofuswereworriedabouthim."Dad,howareyoufeelingnow?"Iaskedhimoneday."Susan,don'tworryaboutme,"hesaidgently."Totellyouth

22、etruth,Ijustlikewalkingwithyourmom."Readinghiseyes,Iknowhelovesmymotherdeeply.OnceIthoughtlovemeantflowers,giftsandsweetkisses.Butfromthisexperience,Iunderstandthatloveisjustathreadinthequiltofourlife.Loveisinside,makinglifestrongandwarm.(1) WhydoesthewriterNOTmakesurewhetherthereislovebetweenh

23、erparents?A.Theydon'tactintheromanticways.B.Theyneversay,"Iloveyou".C.TheyneversendflowerstoeachotheronValentine'sDay.D.Alloftheabove.(2) Whendidthewriterunderstandhermother'sanswer?A. Afterherfathergotsickseriously.B. Beforeherfathergotsickseriously.C. Afterhermothergaveherfat

24、hersomeflowers.D. Afterherfathergavehermothersomeflowers.(3) Whatdoestheunderlinedword"thread"meaninChinese?C.线D.爱A.针iB.被子(4) Whycouldn'therfatherwalkbyhimself?A. Becauseherfatherwasseriouslyill.B. Becauseherfatherlikedwalkingwithhiswife.C. Becausehisfatherdidn'tgetgoodtreatment（治疗

25、）D. Becausehisfatherhadabadtemper（脾气）Whatisthebesttitleforthestory?A. LoveIsJustaThreadB. LoveIsJustaquiltC. LoveIstoSay"Iloveyou"D.LoveIstoWalkTogether【答案】(1)DA(3) C(4) BA【解析】【分析】文章大意：这篇短文讲述的是作者怀疑自己的父母之间是否有爱存在，因为他们之间从来没有浪漫的举动，没有鲜花和礼物。但是他父亲生病之后，父母的表现让她知道了，爱是在内心里面的，就像做被子的线一样，让被子更结实更温暖。(1)细节

26、理解题。根据短文的开头Everydaytheydon'tactintheromanticwaysthatIreadinbooksorIseeonTV.Intheiropinion,“loveyou"istooluxuriousforthemtosay.SendingflowersonValentineDay'issevenmoreoutofthequestion可知，作者怀疑他的父母之间是否有爱存在，原因是他们不像电视里看到的那样浪漫，也从来不说我爱你”，在情人节的时候也不送花。故A、B、C三项都包括。故选Do(2)细节理解题。根据短文中Ilistenedcarefu

27、llybutIcouldn'tunderstanduntilthenextspring.Atthattime,myfathersuddenlygotsickseriously.可知，作者听了妈妈的回答，并不明白妈妈是什么意思，直到第二年春天，他的父亲突然生病，妈妈的行为才让他明白了妈妈的话是什么意思。故选Ao(3)词义猜测题。根据上下文的意思和划线单词所在的句子可知，作者去问他妈妈问题的时候，他妈妈在做被子。quilt是被子，所以B不对；又本据文中thread让被子更结实，故我们猜测它的意思应该是线。故选(4)细节理解题。根据短文中“Susan,don'tworryaboutm

28、e,"hesaidgently."Totellyouthetruth,Ijustlikewalkingwithyourmom.可知，当作者问她的爸爸感觉如何的时候，她爸爸告诉她，他并不是不能走路，只是他喜欢和作者的妈妈一起散步。故选Bo(5)主旨大意题。这篇短文讲述的是作者怀疑自己的父母之间是否有爱存在，因为他们之间从来没有浪漫的举动，没有鲜花和礼物。但是他父亲生病之后，父母的表现让她知道了，爱是在内心里面的，就像做被子的线一样，让被子更结实更温暖。故应该选Ao【点评】考查阅读理解。本文涉及细节题、推断题和主旨题三种常考题型，细节题要注意从文中寻找答案；推断题需要联系上下文

29、，推断出需要的信息；主旨题需要通读全文，了解大意之后找出中心思想。2.根据短文内容，选择最佳答案。Thatnight,Suequarreledwithhermother,andsheranoutofthehouse.Sincesheleftinahurry,shedidn'ttakeanymoneywithher.Whenshepassedanoodleshop,shesuddenlyfeltveryhungry.Shewishedforabowlofnoodles,butshehadnomoney.Theownersawherstandingoutsideandaskedherifs

30、hewouldlikeabowlofnoodle.Shenoddedbutthenshesaidthatshedidn'thaveanymoney.“Okay,I'lltreatyou."theownersaid.Afewminuteslater,theownerbroughtherasteamingbowlofnoodles.Aftereatingsomebites,Suecried.“Whatisit?”theownerasked.“Nothing.Iamjusttouchedbyyourkindness!Evenastrangeronthestreetgives

31、meabowlofnoodles,butmymotherchasedmeoutofthehouseafteraquarrel.Sheissocruel!”gGirlwhydidyouthinkso?Thinkagain.Ionlygaveyouabowlofnoodlesandyouweretouched.Yourmotherhadraisedyousinceyouwereveryborn,whyweren'tyougratefulandarguedwithyourmominstead?"Suewasreallysurprisedafterhearingthat.Onthew

32、ayhome,Suethoughtitoveraboutwhattosaytohermother.Shestoppedinfrontofthedoorandsawhermotherworriedandtriedafterlookingforhereverywhere.WhenshesawSuecomebackhome,shewasoverjoyedandsaideagerly(激动的),"Sue,comeinside,honey.Areyouhungry?Icookedriceandpreparedthemeal.Comeinandeatwhileitisstillhot.could

33、n'tcontrolherselfanylonger.Shecriedandhuggedhermother.Inourlife,it'seasyforustoappreciatethesmallactionsofstrangers,butfortherelatives,especiallyourparents,weseetheirsacrifices(牺牲)asamatterofcourse.Parentalloveisthemostpreciousgiftwehavebeengivensincebirth.(1) WhenSueranoutofherhouse,.A.Shet

34、ooksomefoodwithherB.ShewantedtogoouttohavesomenoodlesC.Shedidn'ttakeanymoneyD.Shethankedhermotherverymuch(2) WhileSuewaseatingnoodles,.A.shewasmovedbytheshopownerB.shefelthungrywiththeshopownerC.sheneverthoughtofhermumD.shethoughthermotherwaswise(3) Whatcanwelearnabouttheownerfromthestory?A.Helo

35、vedmoneyverymuch.B.Hewasacruelman.C.Hedidn'tagreewithSue.D.HethoughtSue'smumwascruel.(4) Theunderlinedword“overjoyed"probablymeans.A.惊奇的旧.生气的C.欣喜的D.意外的Whatdoesthepassagemainlywanttotellus?A.Weshouldbegratefultoparents.B.Don'tbeafraidwhenyouarelost.C.Weshouldhelpparentswithhousework.

36、D.Strangersaremorehelpful.【答案】(1)CA(3) C(4) DA【解析】【分析】本文讲述Sue与母亲吵架后负气出走，在街上因为饥饿她想要一碗面条，但她没有钱。这时她得到面馆老板的一碗热气腾腾的面条的帮助，并且老板的话深深打动了她，使她认识到父母是最关心她的人。(1)细节理解。根据文中Sincesheleftinahurry,shedidn'ttakeanymoneywithher可知。故选Co(2)细节理解。根据Nothing.Iamjusttouchedbyyourkindness!Evenastrangeronthestreetgivesmeabowlo

37、fnoodles,可知Sue被店主的善良感动了，故选A。(3)细节理解。根据第5段店主的话Girl,whydidyouthinkso?Thinkagain.Ionlygaveyouabowlofnoodlesandyouweretouched.Yourmotherhadraisedyousinceyouwereveryborn,whyweren'tyougratefulandarguedwithyourmominstead?可知，她不同意Sue说得话。故选Co(4)细节理解。根据Shestoppedinfrontofthedoorandsawhermotherworriedandtri

38、edafterlookingforhereverywhere和.saideagerly"Sue,comeinside,honey.Areyouhungry知，母亲看到Sue回家后感到很意外。故选Do主旨大意。从最后一段it'seasyforustoappreciatethesmallactionsofstrangers,butfortherelatives,可知我们应对父母心怀感恩。故选A。【点评】阅读理解题主要考查学生生对书面语篇的整体领悟能力和接受及处理具体信息的能力。本文浅显易懂，层次分明，学生很容易把握文章中心内容。答题中注意带着问题阅读短文，一般就能顺利找出答题依据

39、。3.阅读下面短文，从下面每小题的A、B、C、D四个选项中选出最佳选项。ManypeopleliketowatchTV.WatchingTVisoneofthemostimportantactivitiesoftheday.TVbringstheoutsideworldclosertopeople'shomes.SomepeoplesaytheworldissmallerthanbeforebecauseofTV.What'sgoingoninothercountries?Howdopeopleliveinplacesfaraway?Isthereagoodsportsgame

40、somewhere?What'slifelikeinthedeepestpartofthesea?Ifyouwanttoanswertheseandotherkindsofquestions,justturnontheTV.Turnitonandwatch.Youcanseealotandlearnalot.Ofcourse,peoplecanalsolearnthroughreadingorlisteningtotheradio.ButwithTVtheycanlearnbetterandmoreeasily.Why?Becausetheycanhearandseetoo.TVhel

41、pstoopenoureyes.TValsohelpstoopenourminds.TVoftengivesusnewideas.Welearnnewerandbetterwaysofdoingsomething.11)Somepeoplesaytheworldissmallerthanbeforebecause.A. TVmakestheEarthsmallerandsmallerB. allpeopleliketowatchTVC. watchingTVisoneofthemostimportantactivitiesofthedayD. TVbringstheoutsideworldcl

42、osertopeople(2) WecanwhenwewatchTV.A. gotoliveinothercountriesB. answerTVmanyquestionsC. getalotofinformationD. askTVsomequestions(3) PeoplelearnbetterthroughTVthanthroughradiobecause.A. TVsetsarebiggerthanradiosB. peoplecan'tonlyhearbutalsoseeC. withoutTVpeoplecan'topentheireyesD. it'se

43、asiertoturnontheTVthantoturnontheradio(4) Thesentence"TValsohelpstoopenourminds."means"".A. ourmindscanonlybeopenedbyTVB. somethingiswrongwithourmindsC.wecanlearnmorewithTVthanwithoutTVD.TVisnewtousThispassagetellsus.A. it'sgoodtowatchTVB. nottowatchTVanymoreC. studentsshould

44、notwatchTVatanytimeD. tostopreadingtowatchTV【答案】(1)DC(3) B(4) CA【解析】【分析】文章大意：主要介绍了看电视的优点。(1)细节理解题。根据文中的语句TVbringstheoutsideworldclosertopeople'shomes.理解可知，电视使外面的世界更靠近人们的家。故选Do(2)细节理解题。根据文中的语句What'sgoingoninothercountries?Howdopeopleliveinplacesfaraway?Isthereagoodsportsgamesomewhere?What'

45、;slifelikeinthedeepestpartofthesea?理解可知，看电视我们可以得到很多信息，故选C。(3)细节理解题。根据文中的语句ButwithTVtheycanlearnbetterandmoreeasily.Why?Becausetheycanhearandseetoo.理解可知，看电视学习既可以看，也可以听，故选B。(4)句意理解题。根据文中的语句TVoftengivesusnewideas.Welearnnewerandbetterwaysofdoingsomething.理解可知，电视让我们开阔了视野，有了更好更新的做事的方法，故选Co(5)理解归纳题。通读全文的语

46、句可知，此文主要介绍了看电视的优点，故选Ao【点评】考查阅读理解。本文考查细节题，词义推断题，推理判断题和主旨题等常考题型，细节题要注意从文中抓住关键词寻找答案；主旨题，词义推断题以及判断题都需要通读全文，了解大意之后找出正确选项。4.阅读理解Thisisahappyfamily.Therearethreepeopleinit.Hi!MynameisDaTou.Ihaveabigheadandtwosmallhands.Ihavetwobigeyes.IamwearingayellowT-shirt.Ihavenobrothersorsisters.Myparentslovemeverymuc

47、h.Thisismyfather.Heisalsomygoodfriend.Hehasasmallheadandtwobighands.Hewearsapairofglasses.Heisareporter(记者)soheknowsalot.Heoftenplaysgameswithme.Thisismymother.Sheisalittlefat.Sheoftenwearsanapron.Sheisgoodatcooking.Sheworksinashopnearourhouse.Mymotherisakindwoman.(1) WhatdoesDaToulooklike?A.Hehasas

48、mallhead.B.Hehastwobighands.C.HeiswearingagreenT-shirt.D.Hehastwobigeyes.(2) DaTou'smotherisgoodat.A.readingB.cookingC.writingD.playinggames(3) Whatdoestheword"apron"mean(意思)inChinese?A.头饰B.围裙C.女性帽子D.眼镜(4) WhatisDaTou'sfather?A.AworkerB.AreporterC.AplayerD.Ateacher(5) What'sthe

49、besttitle(标题)ofthepassage(文章)？A.Agoodreporter.B.DaTouandhisfriends.C.Ahappyboy.D.Ahappyfamily.【答案】(1)DB(3) B(4) BD【解析】【分析】本文是作者家人介绍和自我介绍。(1)细节题。根据Ihavetwobigeyes,可知大头长了2只大眼睛，故选D。(2)细节题。根据Sheisgoodatcooking,可知大头的妈妈擅长烹饪，故选B。(3)词义猜测题。根据Sheoftenwearsanapron.Sheisgoodatcooking她经常穿着。她擅长烹饪，可知，做饭穿的是围裙，故apro

50、n是围裙的意思，故选B。(4)细节题。根据Heisareporter,可知大头的父亲是记者，故选B。55)主旨题。根据Thisisahappyfamily.Therearethreepeopleinit这是一个幸福的家庭。里面有三个人，可知Ahappyfamily适合做标题，故选D。【点评】考查阅读理解。本文涉及细节题、推断题，和主旨题，细节题要注意从文中寻找答案；推断题需要联系上下文，推断出需要的信息，主旨题需要通读全文，了解大意之后找出中心思想。5.阅读下面短文，从每题所给的A、B、C三个选项中，选出最佳选项。Whatwilltheworldofthefuturebelike?Therea

51、replentyofpeoplewhoarehappytogivetheiropinionofwhatwewillbedoingin2050.Herearetwopredictionsabouttheworldoftomorrow.Whenwedreamaboutthefuture,manyliketothinkofowningapersonalflyingcar.Theadvantagesareobvious.Thistechnologywouldallowtotalfreedomofmovement.Wecouldflyat480kmperhour,avoidingtrafficlight

52、sandbusyroads.However,somepeoplebelievetherewillbeproblemswithtrafficcontrol.Ifthecarsbecomepopular,thereislikelytobeairtrafficjam.Anotherbigproblemismechanicalfailure.Whatwillhappenifthecarsstopworking?Theseareproblemswemustexpectifflyingcarsbecomeareality.Three-dimensionalprintingisanothernewtechn

53、ologywithexcitingpossibilities.3Dprintersareusedtobuildanobjectwithliquidplastic.Theybuildtheobjectlayerbylayeruntilitiscomplete.Carcompaniesalreadyuse3Dprinterstomakelife-sizemodelsofcarparts,andmedicalcompaniesusethetechnologytomakeman-madebodyparts.Aswemoveintothefuture,3Dprintingwillrevolutioniz

54、ethewayweshop,thewaywemanufactureandthewaywetreatsickpeople.Thedisadvantageisthatsuchequipmentwillbeextremelyexpensive.Sointhefuture,wemightbeabletoflytoworkorprintoutnewshoes.Althoughtherearesomeproblemstosolvebeforethiswillbepossible,wecancertainlydreamofaworldwheretechnologymakeslifeeasierandsafe

55、rformillionsofpeople.11)Whatisthepassagemainlyabout?A.Environmentalprotection.nB.Theworldoftomorrow.C.Advantagesoftechnology.(2)Whatdowelearnfromthepassage?A. SomepeoplethinktechnologydevelopmentmaybringnewproblemsB. 3Dprintingcanbringgreatchangestoourlifeanditsequipmentischeap.C. Theflyingcarswon'tbringairtrafficjamevenwhentheybecomepopular.(3)Whatisthecorrectstructureofthepassage?(P1=Paragraph1)(4)Whatdoestheunderlinedword"they"referto?A.Carco