PartIClozeTestDirections:Thispart,numbered1to15,istotestyourgrammarandvocabularyability
EachoftheblankstoisfollowedbyfourchoicesofsuggestedchoicesmarkedA),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,aJapanesefirm