考研英语(二)阅读模拟试题及答案03

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1、台上十分钟，台下十年功。考研英语也是如此，考场的180分钟，全是平时的学习、阅读、练习一点一滴积累起来。圣才考研网收集了考研英语的模拟试题，以下是2017考研英语（二）阅读模拟试题及答案03。　　Itisadevastatingprospect.TerroristselectronicallybreakintothecomputersthatcontrolthewatersupplyofalargeAmericancity，openandclosevalvestocontaminatethewaterwithuntreatedsewageortox

2、icchemicals，andthenreleaseitinadevastatingflood.Astheemergencyservicesstruggletorespond，theterroristsstrikeagain，shuttingdownthetelephonenetworkandelectricalpowergridwithjustafewmouseclicks.Businessesareparalysed，hospitalsareoverwhelmedandroadsaregridlockedaspeopletrytoflee.　　

3、Thiskindofscenarioisinvokedbydoom-mongerswhoinsistthatsteppingupphysicalsecuritysincetheSeptember11thattacksisnotenough.Road-blocksandsoldiersaroundpowerstationscannotpreventdigitalterrorism.“Untilwesecureourcyber-infrastructure，afewkeystrokesandanInternetconnectionisallonenee

4、dstodisabletheeconomyandendangerlives，”LamarSmith，aTexascongressman，toldajudiciarycommitteeinFebruary.Heendedwithhiscatchphrase：“Amousecanbejustasdangerousasabulletorabomb.”Isheright?　　Itistruethatutilitycompaniesandotheroperatorsofcriticalinfrastructureareincreasinglyconnecte

5、dtotheInternet.Butjustbecauseanelectricitycompany'scustomerscanpaytheirbillsonline，itdoesnotnecessarilyfollowthatthecompany'scriticalcontrolsystemsarevulnerabletoattack.Controlsystemsareusuallykeptentirelyseparatefromothersystems，forgoodreason.Theytendtobeobscure，old-fashioned

6、systemsthatareincompatiblewithInternettechnologyanyhow.Evenauthorisedusersrequirespecialistknowledgetooperatethem.Andtelecomsfirms，hospitalsandbusinessesusuallyhavecontingencyplanstodealwithpowerfailuresorflooding.　　AsimulationcarriedoutinAugustbytheUnitedStatesNavalWarCollege

7、inconjunctionwithGartner，aconsultancy，concludedthatan“electronicPearlHarbour”attackonAmerica'scriticalinfrastructurecouldindeedcauseseriousdisruption，butwouldfirstneedfiveyearsofpreparationand$200moffunding.Therearefarsimplerandlesscostlywaystoattackcriticalinfrastructure，from

8、hoaxphonecallstotruckbombsandhijackedairliners.　　OnSeptember1