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PartIClozeTest Directions:Thispart,numbered1to15,istotestyourgrammarandvocabularyability.Eachoftheblanks(N0.1toNo.15)isfollowedbyfourchoicesofsuggestedchoicesmarkedA),B),C)andD).MakethebestchoiceandwritethecorrespondingletterontheAnswerSheet. Workersaren'tallowedtogointoahugeundergroundcomputercenter1theystepuptoamachinethat2aquickpictureofthetinybloodvessels(管)insidetheireyes. Ifthemachinecan't3thepicturewithimagesinitscomputer,theworkeris4bysecurity(安全)guards. Eachpersonhashisownpatternofbloodvesselsinhisorhereyes.Andunlikeakey,thepatterncan'tbe5. Old--fashionedkeysandlocksmaysoonbethingsofthepast. High--techsecuritydevices(装置)arebeing6atmilitarybases,computercenters,nuclearplantsandbanks.Companiesthat7themachinessaythey'llsomedaybeusedinpeople'shomesandcars. Already,aJapanesefirmhasfixeddevicesthat8people'sfingerprintsin360newhomes.Themachinesopenthedoorsonlyforthe9ofthehouses. Thenewsecuritydevicesaresellingwellbecausethievesandspiesaregettingbetteratbreaking10buildingsandcomputersthatareprotectedby11.Since12canstealorcopyafingerprintoreyepattern,thenewmachinesare13. 14newmachinesrecognizevoicepatterns.TwoAmericancompaniesusevoice--recognitionmachinestokeepaneyeontheircomputers. Inexpensivevoice--recognitionmachinesmaysomeday15locksoncars.Thedoorswouldopenonlyfortheowners.Thedeviceswouldcosttheownersaslittleas$270. Althoughtheup--to--datedevicesareamazing,scientistsmuststillsolvea(n)seriousproblem.Howwi11aboyborrowhisdad'scarwithoutborrowingdad'svoice? 1.A.ifB.evenifC.untilD.after 2.A.takeB.giveC.drawD.show 3.A.matchB.fitC.compareD.share 4.A.caughtB.killedC.beatenD.stopped 5.A.borrowedB.missedC.stolenD.bought 6.A.fixedB.dealtwithC.repairedD.checked 7.A.buyB.sellC.makeD.copy 8.A.rememberB.storeC.countD.recognize 9.A.makersB.buyersC.sellersD.owners 10.A.throughB.inC.intoD.out 11.A.computersB.securitydevicesC.camerasD.keysandlocks 12.A.nobodyB.everybodyC.anybodyD.somebody 13.A.safeB.unusualC.helpfulD.useful 14.A.OtherB.AnotherC.MoreD.Others 15.A.takeplaceofB.repl