大学英语专四考试完形填空专项训练.docx

大学英语专四考试完形填空专项训练大学英语专四考试完形填空专项训练Otherpeople’sinterruptionsofyourworkarerelativelyinsignificantcomparedwiththecountlesstimesyouinterruptyourself.以下是小编为大家搜索整理的大学英语专四考试完形填空专项训练，希望能给大家带来帮助!更多精彩内容请及时关注我们应届毕业考试网!part1Thebirthofcomputershasbroughtwithitanewsetofopportunitiesformischiefandcrime.Today,computersareeasytocomebyandmanypeopleknowhowcomputertechnology11.Moreimportantly,thegrowinguseofcomputernetworkscanmultiplytheviolationofsecurity,makinglargenumbersofpeoplemorevulnerablethanwouldbethecaseiftheywereusing12,stand-alonecomputers.What'smore,computerexpertsagreethat—despiterecentwidespreadpublicity-computervirusesare13oneofthemanycomputersecurityproblemsfacingthenation.TheU.S.DefenseAdvancedResearchProjectAgencyhasrequestedthattheResearchCouncil'sScienceandTechnologyBoard14thesecurityproblemsposedbycomputertechnology,seewhat15mayalreadyexist,reviewresearchefforts16atavoidingsecurityproblemsinthefuture,andevaluateexistingpolicies17tocomputersecurity.Thestudycommitteewillexaminethe18ofsecurityforabroadspectrumofusers,includingthebusiness,nationalsecurity,andacademiccommunities,aswellasthe19public.David.Clark,seniorresearchscientist,LaboratoryforComputerScience,MassachusettsInstituteofTechnology,willchairthe20ofexpertsinelectronicsecurity,net-worksecurity,computerlaw,softwareengineering?andoperatingsystems.Thecommitteewillalsoincludecomputerusersfromthedefenseandbankingindustries.A.onlyB.worksC.solutionsD.generalE.issueF.fundamentallyG.universalH.assessI.aimedJ.singleK.committeeL.generatesM.relevantN.questionO.community参考答案II.B12.J13.A14.H15.C16.I17.M18.E19.D20.Kpart2Ihaveneverattendedalargecompany'sboardmeetinginmylife,butIfeelcertainthatthediscussionoftentakesthefollowinglines.The__11__ofproducinganew—forexample—toothpastewouldmake8Opthedecentpriceforit,sowewillmarketitat£l.20.Itisnotabadtoothpaste(notspeciallygoodeither,butnotbad),andaspeopleliketotrynewthingsitwillsellwelltostartwith;butthe__12__ofnoveltysoonfades,sosaleswi