东南大学远程教育专升本招生英语测试(A)PartI
ReadingComprehension:Directions:Inthisparttherearethreepassages
Eachpassageisfollowedbyanumberofcomprehensionquestions
Readthepassagesandanswerthequestions
Then,markyouranswerontheAnswerSheetwithasinglelinethroughthecenter
(1)Acomputerisamachinedesignedtoperformworkmathematicallyandtostoreandselectinformationthathasbeenfedintoit
Itisrunbyelectronicmeans
Thesemachinescandoagreatdealofhardworkinaveryshorttime
Alargecomputer,forexample,canaddninethousandtimesasecond,ordividefivehundredtimesasecond
Theheartofanelectroniccomputerliesinitstransistors
Itworksthousandtimesfasterthanthehumanbrain
Aproblemthatmighttakeahumanbeingtwoyearstosolvecanbesolvedbyacomputerinoneminute,butinordertoworkproperly,acomputermustbegivendirections---itmustbeprogrammed
Computerscanbedesigne