新视野大学英语5形成性练习(7单元形成性练习)

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1、Unit7TRF-B5-A7NTFFTFTTFTDirection:Inthispart,youwillhave15minutestogooverapassagequicklyandthenreadtenstatementsfollowing〃・Forstatements!-10,writeT(forTrue)ifthestatementagreeswiththeinformationgiveninthepassage;F(forFalse)ifthestatementcontradictstheinformationg

2、iveninthepassage;N(forNotGiven)ifthestatementisnotgiveninthepassage.IfthevigorousactionagainstRobertTappanMoms(罗伯特•莫里斯，莫里斯病毒的制造者)isanyindication,theJusticeDepartment(美国司法部)wouldhavethenationbelievethatthe24-year-oldgraduatestudent,recentlyconvictedofwritingacompu

3、terprogramthatdisruptedanationalnetworkinNovember198&representscomputercrimeatitsmostvicious.Oneofthegovernment'sattorneyscomparedMorris1behaviortothatofaterrorist・YettheMorrisincidenthaslittletodowiththerealproblemofcomputercrime.Certainlyitexposedadangertothena

4、tion^computers.Morris1programbroughtthousandstoahalt,andscientistsworkingonprojectsrangingfrommedicalresearchtomolecularmodelinglostvaluableresearchtime.Buttheshy,biond-hairedyoungMorrishadnointentionofdoingdamage.HeendedupjammingtheInternet,aloosecollectionofdoz

5、ensofcomputernetworksthroughoutthenation,becausehisinnocentexperiment—aprogramdesignedtosoakslowlyintothenetworktoseehowmanycomputersitcouldreach一hadgonewrong.Evenso,theexperimentdestroyednodata.AndalthoughsomeoftheInternet'scomputersareusedbytheGovernment,noneco

6、ntainssecretinformation.Itisnot“outsiders”suchasMorris一whethertheyhavedestructivemotivesornot一whodothegreatestdamage,but“insiders”・Althoughnumbersarehardtocomeby,computersecurityexpertsestimatethat90percentofcomputercrimesoccurfromwithinacompany,andthathigh-techt

7、heftaccountsfora$3billionto$5billionannuallosstocoiporateAmerica.Foryearsbankshaveknownofthedangerofwidespreadelectronicrecordkeeping.In1981,well-placedemployeesatonebanktookadvantageofabuilt-indelayinelectronictransactionrecordsandmadeoffwithmorethan$21million.A

8、morerecentcaseinvolvedaringofdata-entryclerksatamajorretailcompanywhostole$33millionfromtheircompanybyalteringelectronicinformation.Thefederalgovernmentconclud