资源描述：
《新视野试卷三级试卷及答案》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。
1、.Text1Somepessimisticexpertsfeelthattheautomobileisboundtofallintodisuse.Theyseeadayinthenot-too-distantfuturewhenallautoswillbeabandoned.Otherauthorities,however,thinktheautoisheretostay.Theyholdthatthecarwillremainaleadingmeansofurbantravelintheforesee
2、ablefuture.Themotorcarwillundoubtedlychangesignificantlyoverthenext30years.Itshouldbecomesmaller,safer,andmoreeconomical,andshouldnotbepoweredbythegasolineengine.Thecarofthefutureshouldbefarmorepollution-freethanpresenttypes.Regardlessofitspowersource,th
3、eautointhefuturewillstillbethemainprobleminurbantrafficcongestion（拥挤）.Oneproposedsolutiontothisproblemistheautomatedhighwaysystem.Whentheautoentersthehighwaysystem,retractable（可伸缩的）armwilldropfromtheautoandmakecontactwitharail,whichissimilartothosepoweri
4、ngsubwaytrainselectrically.Onceattachedtotherail,thecarwillbecomeelectricallypoweredfromthesystem,andcontrolofthevehiclewillpasstoacentralcomputer.Thecomputerwillthenmonitorallofthecar'smovements.Thedriverwilluseatelephonetodialinstructionsabouthisdestin
5、ationintothesystem.Thecomputerwillcalculatethebestroute,andreservespaceforthecarallthewaytothecorrectexitfromthehighway.Thedriverwillthenbefreetorelaxandwaitforthebuzzer（蜂鸣器）thatwillwarnhimofhiscomingexit.Itisestimatedthatanautomatedhighwaywillbeabletoha
6、ndle10,000vehiclesperhour,comparedwiththe1,500to2,000vehiclesthatcanbecarriedbyapresent-dayhighway.(285words)21.Onesignificantimprovementinthefuturecarwillprobablybe________.A)itspowersourceB)itsdrivingsystemC)itsmonitoringsystemD)itsseatingcapacity22.Wh
7、atistheauthor'smainconcern?A)Howtorenderautomobilespollution-free.B)Howtomakesmallerandsaferautomobiles.C)Howtosolvetheproblemoftrafficjams.D)Howtodevelopanautomatedsubwaysystem.23.Whatprovidesautoswithelectricpowerinanautomatedhighwaysystem?A)Arail.B)An
8、engine.C)Aretractablearm.D)Acomputercontroller.24.Inanautomatedhighwaysystem,allthedriverneedstodois________.A)keepintherightlaneB)waittoarriveathisdestinationC)keepinconstanttouchwiththecomputer..centerD)informthesystemof
