计算机专业英语2模拟试题2及答案.docx
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1、计算机专业英语模拟2.Vocabulary(词汇,30分)(一)TranslatethefollowingwordsandexpressionsintoChinese.(写出下列词组的汉语,共10分,每题1分)1.centralprocessingunit(CPU)中央处理器1.2.operatingsystem操作系统2.3.electronicspreadsheet电子表格4.managementinformationsystem管理信息系统5.electroniccommerce电子商务6.database数据库7.softwareengineering软件工程8.softwarecri
2、sis软件危机worksecurity网络安全putervirus计算机病毒(二)FillintheblankswiththecorrespondingEnglishabbreviations.(根据汉语写出相应的英语缩写,共10分,每题1分)1随机存储器RAM2局域网LAN3计算机辅助设计CAD4数字视频光盘DVD5通用串行总线USB6面向对象编程OOP7集成开发环境IDE8结构化查询语言SQL9多文档界面MDI10企业之间的电子商务交易方式B2B(三)Matchthefollowingwordsandexpressionsintheleftcolumnwiththosesimilarinm
3、eaningintherightcolumn.(将左列的词汇与右列相应的汉语匹配,共10分,每空1分)1.outputb2.high-levellanguagec3.projectwindowe4.black-boxtestingg5.multimediah6.WWWi7.fieldj8.applicationsoftwareda.b.c.d.e.f.g.h.视频输出.高级语言应用软件工程窗口系统软件黑盒测试多媒体9.systemsoftwaref10.vidioai.j.万维网字段changetheformwherenecessary.(从下面方框中选择合适的词或表达,以其适当的()式.Co
4、mprehension(阅读理解,40分)(一)Fillintheblankswithsuitablewordsorexpressionsfromthelistgivenbelow,and形填空,共10分,每空2分)high-levellanguageassemblylanguagewrittenmachinelanguagenotationAprogramminglanguage,designedtofacilitatethecommunicationbetweenhumanandcomputers,isa_notation_fordescribingcomputationinreadabl
5、eform.Thereare3levelsofprogramminglanguages,theyare_machinelanguage_,whichcanberundirectlybycomputer;_assemblylanguage_and_high-levellanguage_.Therearedifferenthigh-levelprogramminglanguages.Fortunately,mostofthemhavemanykindsofconstructincommonandvaryonlyinthewaythatthesemustbe_written_.Therefore,f
6、irstthingtobedecidedaboutataskistochoosewhichprogramminglanguageisbestsuitedforthejob.PassageAThecentralprocessingunit(CPU)istheheartofthecomputersystems.Amongotherthings,itsconfigurationdetermineswhetheracomputerisfastorslowinrelationtoothercomputers.TheCPUisthemostcomplexcomputersystemcomponent,re
7、sponsiblefordirectingmostofthecomputersystemactivitiesbasedontheinstructionsprovided.Asonecomputergenerationhasevolvedtothenext,thephysicalsizeoftheCPUhasoftenbecomesmallerandsmaller,whileitsspeedandcapacityhaveincreasedtremendously.Indeed,thesechangeshaveresultedinmicrocomputersthataresmallenoughto
8、fitonyourdeskoryourlap.TheCPUcomprisesthecontrolunitandthearithmetic/logicunit(ALU).Thecontrolunitisresponsiblefordirectingandcoordinatingmostofthecomputersystemsactivities.Itdeterminesthemovementofelectronicsignalsbetweenmainmemoryandthearithmetic/logicunit,aswellasthecontrolsignalsbetweentheCPUand
9、input/outputdevices.TheALUperformsallthearithmeticandlogical(comparison)functionsthatis,itadds,subtracts,multiplies,divides,anddoescomparisons.Thesecomparisons,whicharebasically“lessthan”,“greaterthan”,and“equalto”,canbecombinedintoseveralcommonexpressions,suchas“greaterthanorequalto”.Theobjectiveof
10、mostinstructionsthatusecomparisonsistodeterminewhichinstructionshouldbeexecutednext.(二)Tellwhetherthefollowingstatementsaretrue(T)orfalse(F)accordingtothepassageA.(根据上文的内容判断下列句子的正误,共10分,每题2分)1.Withthedevelopmentofcomputer,thephysicalsizeoftheCPUhasoftenbecomebiggerandbigger.(F)2.Themovementofelectro
11、nicsignalsbetweenmainmemoryandtheALUaswellasthecontrolsignalbetweentheCPUandinput/outputdevicesarecontrolledbythecontrolunitoftheCPU.(T)3.TheCPUcomprisesthecontrolunitandmemory.(F)4.Thecontrolunitperformsallthearithmeticandlogical(comparison)functions.(F)5.Thecentralprocessingunit(CPU)istheheartofth
12、ecomputersystems.(T)PassageBAcomputervirusisacomputerprogramthatiscreatedtomakeandspreadcopiesofitself.Theprogrammayhoweveralsobedesignedtohaveothereffectsonthesystemsitinfects,rangingfromtheannoyingtothedisastrous.Virusattacksaregrowingrapidlythesedays.AccordingtoBusinessWeek,the76,404attacksreport
13、edinthefirsthalfof2003nearlymatchpreviousyearstotalnumber.Asnewantivirustoolsaremorepowerfulthanbefore,theviruswritersaregettingalotsmarterwithnewerandcreativewaystoattacknetworksystems.Letsfirstexaminesomecommonvirustypes:BasicVirus-apieceofsoftwarecodethatisdevelopedtoattackcomputersandnetworksyst
14、emsviaemailorInternetconnections.Itquicklyreplicatesitselfandgraduallyattachestofiles,programsortheharddrive.TrojanHorses-Thisisaprogramthatdoesntreplicatewhenenteringasystembutcanbeeffectivelyusedtoopenbackdoors.TrojanHorsesallowhackerstotakecontroloveraparticularsystemortostealveryimportantdata.Wo
15、rm-thistypeofvirusisabletospreaditselfautomaticallyoverthenetworkfromonecomputertothenext.Duringawormattack,userscomputersgetinfectedwithoutevenhavingtoclickopenemailattachmentoranyprogram,etc.Sinceitisverydifficulttoavoidthevirus,yourbestdefenseisapowerfulantivirusprogram.Inordertofightwithsuchviru
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