第29练科技类（三）单词识记：simplifysoftwareconveniencecriterionsupposesystemtechnicaluniversalvirustechnologyadvancetelescopedocumentplanetscreensolargravityprintdigitaldownload短语扫描：informationproducts信息产品inthefieldofscience在科学领域instorage储存livingstandard生活水平negativeeffect负面影响shopontheInternet网购standout杰出sideeffects副作用watchover看守；监视contribute(sth.)tosth.向……贡献……[跟踪训练]Ⅰ.语境填词1．She________(simplify)theinstructionssothatthechildrencouldunderstandthem.2．Theinsuranceindustryhasproduceditsownproposalsfor________(universe)healthcare.3．Theforeignministersofthetwocountriessignedalotof________(文件)today.4．ThereisnodoubtthatspendingtoomuchtimesurfingtheInternetorwatchingTV________(导致)tonearsightedness,aseriousproblemofyoungpeopleinmanycountries.5．The________(criterion)forentryarethatapplicantsmustdesignandmaketheirownwork.Ⅱ.单项填空6．“________！There’sacarcoming，”themothershoutedtotheplayingchildren.A．WatchoverB．WatchforC．OnthewatchD．Watchout7．Heissupposedtomakehisvisittotheclubsoon，butI’mnotsurewhetherhe________ornot.A．doesB．isC．hadD．will8．JudgingthevoicenotbyappearancebutbythevoiceitselfmakestheTVshow________fromnumerousamusementprograms.A．holdoutB．standoutC．stretchoutD．turnout9．________isknowntoall，Chinawillbean________andpowerfulcountryin20or30yearsorso.A．That；advancingB．This；advancedC．As；advancedD．It；advancing10．Weboughtthehouseforits________.ItisveryneartheshopwhereIwork.A．characterB．valueC．convenienceD．constructionⅠ.阅读理解Anelectriccarispoweredbyanelectricmotorinsteadofagasolineengine.Theelectricmotorgetsenergyfromacontroller，whichregulatestheamountofpower，andthisisbasedonthedriver’suseofanacceleratorpedal.Theelectriccar(alsoknownaselectricvehicleorEV)usesenergystoredinitsrechargeablebatteries，whicharerechargedbycommonhouseholdelectricity.Unlikeahybrid(混合的)car，whichisfueledbygasolineandusesabatteryandmotortoimproveefficiency，anelectriccarispoweredexclusivelybyelectricity.Historically，EVshavenotbeenwidelyadoptedbecauseoflimiteddrivingrangebeforeneedingtoberecharged，longrechargingtime，andalackofcommitmentbyautomakerstoproduceandmarketelectriccarsthathaveallthecomfortsofgaspoweredcars.That’schanging.Asbatterytechnologyimprovesbysimultaneouslyincreasingenergystorageandreducingcost，majorautomakersareexpectedtointroduceanewgenerationofelectriccars.Electriccarsproducenotailpipeemissions，reduceourdependencyonoil，andarecheapertooperate.Ofcourse，theprocessofproducingtheelectricitymovestheemissionsfurtherupstreamtotheutilitycompany’ssmokestack，butevendirtyelectricityusedinelectriccarsusuallyreduceourcollectivecarbonfootprint.Anotherfactorisconvenience.Inonetriptothegasstation，youcanpump330kilowatthoursofenergyintoa10gallontank.Itwouldtakeabout9daystogetthesameamountofenergyfromhouseholdelectriccurrent.Fortunately，ittakeshoursandnotdaystorechargeanelectriccar，becausetheprocessismuchmoreefficient.Justasthemajorcarcompanieswerereducingtheirelectriccarprogramsin2004and2005，theperfectstormwasbrewingonthehorizon：acombinationofgrowingacceptanceofglobalwarming，oilpriceincreasesandrunawaysalesoftheToyotaPrius，ahybridcarwhichusesgasandelectricity.Themajorautocompanieswentrightbacktothedrawingboardandemergedwithbigplansforelectriccars.Asglobaloilsuppliesareusedupandoilbecom...
