英语四级试仔细阅读练习.doc

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1、2012年英语四级考试仔细阅读练习(4)PartIIReadingComprehension　　(35minutes)　　Directions:Thereare4passagesinthispart.Eachpassageisfollowedbysomequestionsorunfinishedstatements.ForeachofthemtherearefourchoicesmarkedA),B),C)andD).YoushoulddecideonthebestchoiceandmarkthecorrespondingletterontheAnswerSheetwi

2、thasinglelinethroughthecenter.　　Passageone　　Questions21to25arebasedonthefollowingpassage.　　Somepessimisticexpertsfeelthattheautomobileisboundtofallintodisuse.Theyseeadayinthenot-too-distantfuturewhenallautoswillbeabandonedandallowedtorust.Otherauthorities,however,thinktheautoisheretostay

3、.Theyholdthatthecarwillremainaleadingmeansofurbantravelintheforeseeablefuture.　　Themotorcarwillundoubtedlychangesignificantlyoverthenext30years.Itshouldbecomesmaller,safer,andmoreeconomical,andshouldnotbepoweredbythegasolineengine.Thecarofthefutureshouldbefarmorepollution-freethanpresent

4、types.　　Regardlessofitspowersource,theautointhefuturewillstillbethemainprobleminurbantrafficcongestion(拥挤).Oneproposedsolutiontothisproblemistheautomatedhighwaysystem.　　Whentheautoentersthehighwaysystem,aretractable(可伸缩的)armwilldropfromtheautoandmakecontactwitharail,whichissimilartothose

5、poweringsubwaytrainselectrically.Onceattachedtotherail,thecarwillbecomeelectricallypoweredfromthesystem,andcontrolofthevehiclewillpasstoacentralcomputer.Thecomputerwillthenmonitorallofthecar’smovements.　　Thedriverwilluseatelephonetodialinstructionsabouthisdestinationintothesystem.Thecomp

6、uterwillcalculatethebestroute,andreservespaceforthecarallthewaytothecorrectexitfromthehighway.Thedriverwillthenbefreetorelaxandwaitforthebuzzer(蜂鸣器)thatwillwarnhimofhiscomingexit.Itisestimatedthatanautomatedhighwaywillbeabletohandle10,000vehiclesperhour,comparedwiththe1,500to2,000vehicle

7、sthatcanbecarriedbyapresent-dayhighway.　　21.Onesignificantimprovementinthefuturecarwillprobablybe________.　　A)itspowersource　　B)itsdrivingsystem　　C)itsmonitoringsystem　　D)itsseatingcapacity　　22.Whatistheauthor’smainconcern?　　A)Howtorenderautomobilespollution-free.　　B)Howt