职称英语考试理工类阅读理解模拟试题精选Word下载.docx
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职称英语考试理工类阅读理解模拟试题精选Word下载.docx
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sumbilicalcord.Latelyotherpeople,too,havebeendiscoveringitsconnectivevirtues.Physicistsareusingit;
collegestudentsareusingit,everybodyisusingit,andasasignthatithascomeofage,theNewYorkerhascelebrateditsliberatingpresencewithacartoon-anappreciativedogseatedatakeyboard,sayinghappily,“OntheInternet,nobodyknowsyou'
readog.”
ThereasonsgivenbelowaboutthepopularityofE-mailcanbefoundinthepassageEXCEPT________.
A.directandreliable
B.time-savingindelivery
C.money-saving
D.availableatanytime
32、HowistheInternetornetexplainedinthepassage?
________
A.Electronicroutesusedtoreadhomeandinternationaljournals.
B.Electronicroutesusedtofaxorcorrespondovernight.
C.Electronicrouteswaitingforcorrespondencewhileoneissleeping.
D.Electronicroutesconnectedamongmillionsofusers,homeandabroad.
33、Whatdoesthesentence“Ifitisnotyetspeedingdiscoveries,itiscertainlyacceleratingcommunication”mostprobablymean?
A.Thequickspeedofcorrespondencemayhaveill-effectsondiscoveries.
B.Althoughitdoesnotspeedupcorrespondence,ithelpsmakediscoveries.
C.Itquickensmutualcommunicationevenifitdoesnotacceleratediscoveries.
D.Itshrinkstimeforcommunicationandacceleratesdiscoveries.
34、Whatdoesthesentence“OntheInternet,nobodyknowsyou'
readog.”implyinthelastparagraph?
A.Evendogsareinterestedinthecomputer.
B.E-mailhasbecomeverypopular.
C.Dogsareliberatedfromtheirusualduties.
D.E-maildeprivesdogsoftheirowners'
love.
35、Whatwillhappentofax,landmail,overnightmail,etc.accordingtothewriter?
A.TheirfunctionscannotbereplacedbyE-mail.
B.Theywillco-existwithE-mailforalongtime.
C.Lessandlesspeoplewillusethem.
D.TheywillplayasupplementaryfunctiontoE-mail.
36、回答36-50题:
Hack
Thefirstbig-namehackersincludeSteveWozniak,BillGatesandLinusTorvalds,allnowhighlyrecognizablenamesbehindmanyofthecomputertechnologiesusedtoday.Theseearlyhackershadaloveoftechnologyandacompellingneedtoknowhowitallworked,andtheirgoalwastopushprogramsbeyondwhattheyweredesignedtodo.Backthen,theword“hacker”didn'
thavethenegativeconnotationithastoday.Theoriginalhackerethic,rootedoutofsimplecuriosityandaneedtobechallenged,appearstobedead.
Theobjectivesofearlyhackersareafarcryfromthegoalsoftoday'
shacker.Themotivationofthenewbreedofhackersappearsnottobecuriosity,orahungerforknowledge,asitusedtobe.Instead,mostoftoday'
shackersaredrivenbygreed,power,revenge,orsomeothermaliciousintent,treatinghackingasagameorsport,employingthetoolsthatarereadilyavailableviatheInternet.
TherateofsecurityattacksisactuallyoutpacingthegrowthoftheInternet.ThismeansthatsomethingbesidesthegrowthoftheInternetisdrivingtheriseinsecurityattacks.Herearesomerealitiesyoushouldknowabout:
Operatingsystemsandapplicationswillneverbesecure.Newvulnerabilitieswillbeintroducedintoyourenvironmenteveryday.Andevenifyoueverdogetoneoperatingsystemsecure,therewillbenewoperatingsystemswithnewvulnerabilities-phones,wirelessdevices,andnetworkappliances.Employeeswillneverkeepupwithsecuritypolicesandawareness.Itdoesn'
tmatterhowmuchyoutrainandeducateyouremployees.Ifyouremployeesdisregardwarningsaboutthehazardsofopeningquestion-ablee-mailattachments,howareyougoingtoeducatethemaboutproperlyconfiguringfire-wallsandintrusiondetectionsystemsfortheirPCs?
Managershavemoreresponsibilitythanever.Andontopoftherealitieslistedabove,securitymanagersarebeingaskedtosupportincreasingdegreesofnetworkavailabilityandaccess.Therearesomegoodsecuritymeasuresyoucantake:
Employalayer7,full-inspectionfirewall.Automaticallyupdateyouranti-virusatthegateway,serverandclient.Keepallofyoursystemsandapplicationsupdated.HackerscommonlybreakintoaWebsitethroughknownsecurityholes,somakesureyourserversandapplicationsarepatchedanduptodate.Turnoffunnecessarynetworkservices.Eliminateallunneededprograms.Scannetworkforcommonbackdoorservices-Useintrusiondetectionsystems,vulnerabilityscans,antivirusprotection.
WhichofthefollowingstatementsofSteveWozniak,BillGatesandLinusTorvaldsisTRUE?
A.Theyareallgoodexamplesoftoday'
scomputerusers.
B.Theyaredrivenbygreed,power,revenge,orsomeothermaliciousintent.
C.Theirgoalistopushprogramsbeyondwhattheyaredesignedtodo.
D.Theyarealldead.
37、Theunderlinedword“hacker”(Para.1)mostprobablymeans“________”
A.highlyrecognizablenamesbehindmanyofthecomputertechnologiesusedtoday
B.thenegativeconnotationofthosecomputerusers
C.agame,employingthetoolsthatarereadilyavailableviatheInternet
D.Peoplewhobreakintocomputersystems
38、WhichofthefollowingisNOTtrueofsecurityattacks?
A.Employeeswillkeepupwithsecuritypolicesandawarenessiftheyarehighly-trained.
B.TherateofsecurityattacksappearsfasterthanthegrowthoftheInternet.
C.One'
scomputersystemwillneverbesecure.
D.Vulnerabilitiescangothroughphones,wirelessdevices,andnetworkappliances.
39、Whatisthemostimportantoneamongtherealitieslisted?
A.Newvulnerabilitieswillbeintroducedintoyourenvironmenteveryday.
B.Ifemployeesdisregardwarningsaboutthehazardsofopeningquestionablee-mailattachments,themanagershouldeducatethemaboutproperlyconfiguringfirewallsandintrusiondetectionsystemsfortheirPCs.
C.Managershavemoreresponsibilitythanever.
D.Securitymanagersareaskedtosupportincreasingdegreesofnetworkavailabilityandaccess.
40、VarioussecuritymeasuresarerecommendedEXCEPT________.
A.turningoffnetworkservices
B.employingafull-inspectionfirewall
C.makingsurethatserversandapplicationsarepatched
D.eliminatingallunneededprograms
41、回答41-55题:
SuperconductorCeramic(陶瓷)
Anundergroundrevolutionbeginsthiswinter.Withtheflip(轻击)ofaswitch,30,000homesinonepartofDetroitwillsoonbecomethefirstinthecountrytoreceiveelectricitytransmittedbyicecoldhighperformancecables.OtherAmericancitiesareexpectedtofollowDetroit'
sexampleintheyearsahead,whichcouldconserveenormousamountsofpower.
ThenewelectricalcablesattheFrisbiepowerstationinDetroitarerevolutionarybecausetheyaremadeofsuperconductors.Asuperconductorisamaterialthattransmitselectricitywithlittleornoresistance.Resistanceisthedegreetowhichasubstanceresistselectriccurrent.Allcommonelectricalconductorshaveacertainamountofelectricalresistance.Theyconvertatleastsomeoftheelectricalenergypassingthroughthemintowasteheat.Superconductorsdon'
t.Nooneunderstandshowsuperconductivityworks.Itjustdoes.
Makingsuperconductorsisn'
teasy.Asuperconductormaterialhastobecooledtoanextremelylowtemperaturetoloseitsresistance.Thefirstsuperconductors,mademorethan50yearsago,hadtobecooledto-263degreesCelsiusbeforetheylosttheirresistance.Newersuperconductingmaterialslosetheirresistanceat-143degreesCelsius.
ThesuperconductorscableinstalledattheFrisbiestationismadeofaceramicmaterialthatcontainscopper,oxygen,bismuth(铋),strontium(锶),andcalcium(钙).Aceramicisahard,strongcompoundmadefromclayorminerals.Thesuperconductingceramichasbeenfashionedintoatapethatiswrappedlengthwisearoundalongtubefilledwithliquidnitrogen.Liquidnitrogenissupercoldandlowersthetemperatureoftheceramictapetothepointwhereitconveyselectricitywithzeroresistance.
TheUnitedStateslosesanenormousamountofelectricityeachyeartoresistance.BecausecooledsupercondUutorshavenoresistance,theywastemuchlesspower,othercitiesarewatchingtheFrisbieexperimentinthehopethattheymightswitchtosuperconductingcableandconservepower,too.
Whatisthebenefitoftherevolutionmentionedinthefirstparagraph?
A.Withaflipofswish,electricitycanbetransmitted.
B.OtherAmericancitiescanbenefitfromthehigh-performancecables.
C.Greatamountsofpowercanbeconserved.
D.Detroitwi
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