大学生英语四级阅读满分练习附答案.docx

大学生英语四级阅读满分练习附答案大学生英语四级阅读满分练习附答案在当今这个学习英语风潮盛行的社会，英语似乎已经成为了我们生活中不可或缺的一部分，下面是小编为大家搜索整理的英语四级辅导练习，希望能给大家带来帮助!Somepessimisticexpertsfeelthattheautomobileisboundtofallintodisuse.Theyseeadayinthenot-too-distantfuturewhenallautoswillbeabandonedandallowedtorust.Otherauthorities,however,thinktheautoisheretostay.Theyholdthatthecarwillremainaleadingmeansofurbantravelintheforeseeablefuture.Themotorcarwillundoubtedlychangesignificantlyoverthenext30years.Itshouldbecomesmaller,safer,andmoreeconomical,andshouldnotbepoweredbythegasolineengine.Thecarofthefutureshouldbefarmorepollution-freethanpresenttypes.Regardlessofitspowersource,theautointhefuturewillstillbethemainprobleminurbantrafficcongestion(拥挤).Oneproposedsolutiontothisproblemistheautomatedhighwaysystem.Whentheautoentersthehighwaysystem,aretractable(可伸缩的)armwilldropfromtheautoandmakecontactwitharail,whichissimilartothosepoweringsubwaytrainselectrically.Onceattachedtotherail,thecarwillbecomeelectricallypoweredfromthesystem,andcontrolofthevehiclewillpasstoacentralcomputer.Thecomputerwillthenmonitorallofthecar’smovements.Thedriverwilluseatelephonetodialinstructionsabouthisdestinationintothesystem.Thecomputerwillcalculatethebestroute,andreservespaceforthecarallthewaytothecorrectexitfromthehighway.Thedriverwillthenbefreetorelaxandwaitforthebuzzer(蜂鸣器)thatwillwarnhimofhiscomingexit.Itisestimatedthatanautomatedhighwaywillbeabletohandle10,000vehiclesperhour,comparedwiththe1,500to2,000vehiclesthatcanbecarriedbyapresent-dayhighway.练习题：Choosecorrectanswerstothequestion:1.Onesignificantimprovementinthefuturecarwillprobablybe________.A.itspowersourceB.itsdrivingsystemC.itsmonitoringsystemD.itsseatingcapacity2.Whatistheauthor’smainconcern?A.Howtorenderautomobilespollution-free.B.Howtomakesmallerandsaferautomobiles.C.Howtosolvetheproblemoftrafficjams.D.Howtodevelopanautomatedsubwaysystem.3.Whatprovidesautoswithelectricpowerinanautomatedhighwaysystem?A.Arail.B.Anengine.C.Aretractablearm.D.Acomputercontroller.4.Inanautomatedhighwaysystem,allth