新视野考试卷三级考试卷及问题详解.doc

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1、Text1Somepessimisticexpertsfeelthattheautomobileisboundtofallintodisuse.Theyseeadayinthenot-too-distantfuturewhenallautoswillbeabandoned.Otherauthorities,however,thinktheautoisheretostay.Theyholdthatthecarwillremainaleadingmeansofurbantravelintheforeseeablefuture.Themotorcarwillundoubtedlychangesi

2、gnificantlyoverthenext30years.Itshouldbecomesmaller,safer,andmoreeconomical,andshouldnotbepoweredbythegasolineengine.Thecarofthefutureshouldbefarmorepollution-freethanpresenttypes.Regardlessofitspowersource,theautointhefuturewillstillbethemainprobleminurbantrafficcongestion（拥挤）.Oneproposedsolution

3、tothisproblemistheautomatedhighwaysystem.Whentheautoentersthehighwaysystem,retractable（可伸缩的）armwilldropfromtheautoandmakecontactwitharail,whichissimilartothosepoweringsubwaytrainselectrically.Onceattachedtotherail,thecarwillbecomeelectricallypoweredfromthesystem,andcontrolofthevehiclewillpasstoace

4、ntralcomputer.Thecomputerwillthenmonitorallofthecar'smovements.Thedriverwilluseatelephonetodialinstructionsabouthisdestinationintothesystem.Thecomputerwillcalculatethebestroute,andreservespaceforthecarallthewaytothecorrectexitfromthehighway.Thedriverwillthenbefreetorelaxandwaitforthebuzzer（蜂鸣器）tha

5、twillwarnhimofhiscomingexit.Itisestimatedthatanautomatedhighwaywillbeabletohandle10,000vehiclesperhour,comparedwiththe1,500to2,000vehiclesthatcanbecarriedbyapresent-dayhighway.(285words)21.Onesignificantimprovementinthefuturecarwillprobablybe________.A)itspowersourceB)itsdrivingsystemC)itsmonitori

6、ngsystemD)itsseatingcapacity22.Whatistheauthor'smainconcern?A)Howtorenderautomobilespollution-free.B)Howtomakesmallerandsaferautomobiles.C)Howtosolvetheproblemoftrafficjams.D)Howtodevelopanautomatedsubwaysystem.23.Whatprovidesautoswithelectricpowerinanautomatedhighwaysystem?A)Arail.B)Anengine.C)Ar

7、etractablearm.D)Acomputercontroller.24.Inanautomatedhighwaysystem,allthedriverneedstodois________.A)keepintherightlaneB)waittoarriveathisdestinationC)keepinconstanttouchwiththecomputercenterD)informthesystemofhis