英语四级阅读理解全真模拟题101128.docx

英语四级阅读理解全真模拟题101128.docx

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英语四级阅读理解全真模拟题101128

Passage4

OnThursdayAmericanAirlinesandUSAirwaysannouncedanalliancetopooltheirfrequent-flierprograms,givingcustomersaddedincentivestoflyoneanother'sskies.ThenonFridayDeltaandUniteddeliveredwordofasort-of-but-not-quitecoupling.Thesedealsthrustthemuch-scrutinizedairlineindustryevenmoreintothepublicspotlight.Airlineprofitsareatrecordhighs.Businessfaresareclimbingintothestratosphere,up16percentlastyearalone.Nowcomestheconsolidationsweepingtheindustry.Thequestioniswhetherthesedealswillmeanmorechoiceandmoreconvenience,astheairlinesargue,orlesscompetitionorevenhigherprices.

Clearlyconsumerscanbenefitfromthesetie-ups.PassengersflyingAmericanorUSAirways,forinstance,cannowuseeithercarrier'snetworkof72worldwideclubsandlounges.Theycancombinetheirfrequent-flierawards,allowingthemnotonlytobuildupredeemablemilesmorequicklybutalsocashthemintomoredestinations.AmericancanplugintoUSAirways'deeperwebofconnectionsupanddowntheEasternSeaboard;USAirways,withfewerroutestoSouthAmerica,theCaribbeariandEurope,willbeabletoofferagreaterarrayofinternationalflights.Intime,AmericanandUSAirwayshopetocreatethemoreambitiouspartnership--aso-calledcode-sharingagreementthatwouldallowthetwocarrierstocoordinateflightscheduleswithoutenteringafull-fledgedmerger.Thegoalis"seamlessservice"--withouthavingtochangeairlines.

Priceisawildcardinthesealliances.Consumergroupsworrythattheywillreducecompetition,translatinginturnintohigherfares.Theycouldberight.Giventherapidtrendtowardconsolidation,manyanalystsforeseeadaywhenmostmajor"hub"airportswillbedominatedbyasingleairlineorconsortium.AreportlastyearbytheGeneralAccountingOfficefoundthatticketprices,insuchcases,rangedfrom45to65percenthigherthanatcitieswheretwoormorecarrierscompeted.AndjustlastweektheTransportationDepartmentannounceditwasinvestigatingallegationsofprice-fixingbythemajorairlines--aimedatkeepingsmallerdiscount-carriersfromintrudingontheirturf--andtheJusticeDepartmenthasbegunsimilarprobes.Themessage?

Airlinesmayyearntomerge--butwinningapprovalfromskepticalauthoritiesmightbetougherthantheyexpect.

13.Judgingfromthepassage,thefrequent-flierprogramisonebywhich________.

A）peoplewhohavebuiltupacertainnumberofflyingmileswithanairlinewillgetafreeticket.

B）peoplewhoflyanairlinefrequentlywillgetadiscount

C）peoplewhohavebuiltupacertainnumberofflyingmileswithanairlinewillgetacashaward

D）peoplewhoflyanairlinefrequentlywillgetextraservice

14.accordingtothispassage,thefederalgovernment'sattitudetowardsairlinemergersisoneof_______

A）encouragementB）restriction

C）prohibitionD）approval

15.Theexpression"awildcard"inthelastparagraphmostprobablymeans________.

A）achiefconcrnB）animportantfactor

C）anunpredictableelementD）anecessaryconsequence

16.Whichofthefollowingstatementsistrue?

A）Airlinemergerswillgiverisetointensecompetition.

B）Consumersbenefitfromairlinemergers.

C）Tie-upsbetweenairlinesseemtodrawlittlepublicattention.

D）Ticketpricestendtobehigherwherethereisonlyonecarrier.

Passage5

AdecadeagoSusicMakinsterlearnedshemighthavealiverproblem.Herdoctorstoldhernottoworry.Soshedidn't--untilthreeyearsago,whenshewasastonishedtolearnshehadtestedpositiveforhepatitis（肝炎）C,ablood-bornevirusshehadneverheardof.Makinster,then45,hadbeenlivingwithaninfectionthatwouldlikelystaywithherforlifeandthatcouldeventuallydestroyherliverandcauseherdeath.Yetshehadnoideahoworwhenshehadcontractedthevirus.

HepatitisCwasn'tevendiscovereduntil1989.Todayanestimated3.9millionAmericansareinfected,andmostofthemstilldon'sknowit.LikeHIV,hepatitisCisaslowactingvirusthatcanbetransmittedbysharedneedlesandbloodtransfusions.Butitisfarmorerampant.Thereisnovaccinetopreventitsspread,andnoreliabletreatment.Some75percentofpeoplewhocontracttheviruswillcarryitforlife;20percentwilldevelopcirrhosisoftheliver.HepatitisCisnowthenation'sleadingreasonforlivertransplantation,andthesecondleadingcauseofcirrhosis（afteralcohol）.Itwillkillroughly10,000Americansthisyear--andthatnumberisexpectedtotripleoverthenexttwodecades,asmorepastinfectionscometolight.SaysSurgeonGeneralDavidSatcher,"Thisisamajorpublichealthcrisis."

Untiltreatmentislesshit-or-miss,livingwithhepatitisCwillbeamatterofaccommodation.Thoughmostpeoplewhocontractedthevirusbecomechronicallyinfected,manyneverdevelopadvancedliverdisease.That'spartlyluck,butnotentirely.Givingupalcoholbrightenstheprognosis,andmanysuffererstoutthebenefitsofreducingstressandgettingmorerest.GettingvaccinatedagainsthepatitisaandBisalsoagoodidea,sinceadualinfectioncanaggravatethedisease.Andpreventingfurtherspreadrequiressomeprecautions.Expertsaredividedontheneedtopractisesafesex,sincethevirusisnormallyonlyintheblood.Buttheystresstheimportanceofcoveringopenwoundsandnotsharingrazorsandtoothbrushes.

17.Accordingtothepassage,theleadingcauseforlivercirrhosisis_______.

A）toomuchdrinkingB）hepatitisC

C）hepatitisAD）hepatitisB

18.Accordingtothepassage,whichofthefollowingstatementsistrue?

A）NoonewhocontractshepatitisCcanhopetolivelong.

B）MorepeoplehavecontractedhepatitisCthanHIV.

C）AlcoholisthechiefcauseforhepatitisC.

D）HepatitisCissexuallytransmitted.

19.ThenumberofpeoplewhowilldieofhepatitisCintwentyyearswillbe______.

A）20,000B）10,000

C）30,000D）40,000

20.Theword"accommodation"inthelastparagraphmostprobablymeans_______.

A）careB）treatment

C）restD）adjustment

Unit14

Passage1

Newandbizarrecrimeshavecomeintobeingwiththeadventofcomputertechnology.Organizedcrimetoohasbeendirectlyinvolved;thenewtechnologyoffersitunlimitedopportunities,suchasdatacrimes,theftofsevices,property-relatedcrimes,industrialsabotage,politicallyrelatedsabotage,vandalism,crimesagainsttheindividualandfinanciallyrelatedcrimes...

Theftofdata,ordatacrime,hasattractedtheinterestoforganizedcriminalsyndicates.Thisisusuallythetheftorcopyingofvaluablecomputerprogram.Aninternationalmarketalreadyexistsforcomputerizeddata,andspecializedfencesaresaidtobeplayingakeyroleinthisrapidlyexpandingcriminalmarket.buyersforstolenprogramsmayrangefromafirm'scompetitorstoforeignnations.

Acompetitorsabotagesacompany'scomputersystemtodestroyorcripplethefirm'soperationalability,thusneutralizingitscompetitivecapabilityeitherintheprivateorthegovernmentsector.Thiscomputersabotagemayalsobetiedtoanattemptbyaffluentinvestorstoacquirethevictimfirm.Withthegrowingreliancebyfirmsoncomputersfortheirrecordkeepinganddailyoperations,sabotageoftheircomputerscanresultininternalhavoc,afterwhichthegroupinterestedinacquiringthefirmcaneasilybuyitatasubstantiallylowerprice.Criminalgroupscouldalsoresorttosabotageifthecompanyisacompetitorofabusinessownedorcontrolledbyorganizedcrime.

Politicallymotivatedsabotageisontheincrease;politicalextremistgroupshavesproutedoneverycontinent.Sophisticatedcomputertechnologyarmsthesegroupswithawesomepowersandopenstechnologicallyadvancednationstotheirattack.Severalattemptshavealreadybeenmadetodestroycomputerfacilityatanairforcebase.Auniversitycomputerfacilityinvolvedinnationaldefenceworksufferedmorethan$2millionindamagesasaresultofabombing.

Computervulnerabilityhasbeenamplydocumented.Onecongressionalstudyconcludedthatneithergovernmentnorprivatecomputersystemsareadequatelyprotectedagainstsabotage.Organizedcriminalsyndicateshaveshowntheirwillingnesstoworkwithpoliticallymotivatedgroups.Investigatorshaveuncoveredevidenceofcooperationbetweencriminalgroupsandforeigngovernmentsinnarcotics.Criminalgroupshavetakenattemptsinassassinatingpoliticalleaders....Computersareusedinhospitallife-supportsystem,inlaboratories,andinmajorsurgery.Criminalscouldeasilyturnthesecomputersintotoolsofdevastation.Bysabotagingthecomputerofalife-supportsystem,criminalscouldkillanindividualaseasilyastheyhadusedagun.Bymanipulatingacomputer,theycouldguideawesometoolsofterroragainstlargeurbancentres.citiesandnationscouldbecomehostages.Homicidecouldtakeanewform.Thecomputermaybecomethehitmanofthetwentiethcentury.

Thecomputeropensvastareasofcrimetoorganizedcriminalgroups,bothnationalandinternational.Itcallsonthemtopooltheirresourcesandincreasetheircooperativeefforts,becausemanyofthesecrimesaretocomplexforonegrouptohandle,especiallythoserequiringavasenetworkoffences.Althoughcriminalshaveadaptedtocomputertechnology,lawenforcementhasnot.Manystillthinkintermsoftraditionalcriminology.

1.Howmanykindsofcrimesarementionedinthepassage?

A）7.B）8.C）9.D）10.

2.Whatisthepurposeofacompetitortosabotageacompany'scomputer?

A）Hispurposeistodestroyorweakenthefirm'soperationalability.

B）Hispurposeistoweakenfirm'scompetitivecapabilityandgetit.

C）Hispurpos