CET4大学英语四级考试全真预测第一套.docx

CET4大学英语四级考试全真预测第一套Hi,各位考生大学英语四级考试即将来临，经过一个阶段的备考，你们是否信心满满，胸有成竹；在这里我们网站给大家提供了10全真预测试题，如果你可以在60分钟内完成这些试题，并且准确率达到80%以上；相信顺利过关已不再是梦想；同时大部分练习题后面附有详细的答案详解；如果在做题过程中，发现错误，或者其他不解的地方；请留下您宝贵的意见或建议；我们非常愿意考虑您的所有提议；希望我们可以共同努力，共同进步；1PartIIReadingComprehension(SkimmingandScanning)(15minutes)Directions:Inthispart,1.Forquestions1-7,markY(forYES)ifthestatementagreeswiththeinformationgiveninthepassage;N(forNO)ifthestatementcontradictstheinformationgiveninthepassage;NG(forNOTGIVEN)iftheinformationisnotgiveninthepassage.Forquestions8-10,completethesentenceswiththeinformationgiveninthepassage.ScientistsWeighOptionsforRebuildingNewOrleansAsexpertsponderhowbesttorebuildthedevastated(毁坏)city,onequestioniswhethertowallofforworkwiththewater.EvenbeforethedeathtollfromHurricaneKatrinaistallied,scientistsarecautiouslybeginningtodiscussthefutureofNewOrleans.FewseemtodoubtthatthisvitalheartofU.S.commerceandculturewillberestored,butexactlyhowtorebuildthecityanditsdefensestoavoidarepeatcatastropheisanopenquestion.PlansforimprovingitsleveesandrestoringthebarrierofwetlandsaroundNewOrleanshavebeenonthetablesince1998,neededtoimplementthemneverarrived.Afterthetragedy,that'sboundtochange,saysJohnDay,anecologistatLouisianaStateUniversity(LSU)inBatonRouge.Andifthereisanupsidetothedisaster,hesays,it'sthat'nowwe'vegotacleanslatetostartfrom.ManyarelookingforguidancetotheNetherlands,acountrythat,justlikebowl-shapedNewOrleans,sitsmostlybelowsealevel,keepingthewateratbaywithaconstructionofamazingscaleandcomplexity.Others,pointingtoVenice'slong-standingadaptations,sayit'sbesttoletwaterflowthroughthecity,toletnaturehelpbyrestoringthewetlandbuffersbetweenseaandcity.Butbeforetheoptionscanbeweighed,severalunknownswillhavetobeaddressed.Oneispreciselyhowthecurrentdefensesfailed.Toanswerthat,LSUcoastalscientistsPaulKempandHassanMashriquiarepickingtheirwaythroughthedestroyedcityandsurroundingregion,reconstructingthesizeofwatersurgesbymeasuringtelltalemarksleftonthesidesofbuildingsandhighwaystructures.TheyarefeedingthesedataintoasimulationofthewindandwateraroundNewOrleansduringitsordeal.Wecan'tsayforsureuntilthisjobisdone,saysDay,buttheemergingpictureisexactlywhatwe'vepredictedforyears.Namely,severalcanalsincludingtheMRGO,whichwasbuilttospeedshippinginthe1960shavethecombinedeffectoffunnelingsurgesfromtheGulfofMexicorighttothecity'seasternleveesandthelakesystemtothenorth.Thosesurgesaretoblamefortheflooding.Oneofthefirstthingswe'llseedoneisthecompletebackfillingoftheMRGOcanal,predictsDay,whichcouldtakeacoupleofyears.Thelevees,whichhavebeenprovisionallyrepaired,willbeshoredupfurtherinthemonthstocome,althoughtheirlong-termfateisunclear.Betterleveeswouldprobablyhavepreventedmostofthefloodinginthecitycenter.Toprovidefurtherprotection,amobiledamsystem,muchlikeastormsurgebarrierintheNetherlands,couldbeusedtocloseoffthemouthofLakePontchartrain.Butmostexpertsagreethattheseareshort-termfixes.ThebasicproblemforNewOrleansandtheLouisianacoastlineisthattheentireMississippiRiverdeltaissubsidinganderoding,plungingthecitydeeperbelowsealevelandremovingathickcushionofwetlandsthatoncebufferedthecoastlinefromwindandwaves.Partofthesubsidenceisgeologicandunavoidable,butthereststemsfromtheleveesthathavehemmedintheMississippiallthewaytoitsmouthfornearlyacenturytopreventfloodsandfacilitateshipping.Asaresult,riversedimentisnolongerspreadacrossthedeltabutdumpedintotheGulfofMexico.Withoutaconstantstreamoffreshsediment,thebarrierislandsandmarshesaredisappearingrapidly,withaquarter,roughlythesizeofRhodeIsland,alreadygone.Afteryearsofpoliticalwrangling,abroadgrouppulledtogetherbytheLouisianagovernmentin1998proposedamassive$14billionplantosavetheLouisianacoasts,calledCoast2050(nowmodifiedintoaplancalledtheLouisianaCoastalAreaproject).Wetlandrestorationwasakeycomponent.It'soneofthebestandcheapesthurricanedefenses,saysDay,whochaireditsscientificadvisorycommittee.Althoughtheplanwasnevergivenmorethantokenfunding,ateamledbyDayhasbeenconductingapilotstudysince2000,divertingpartoftheMississippiintothewetlandsdownstreamofthecity.Theresultsareasgoodaswecouldhavehoped,hesays,withlandlevelsrisingatabout1centimeterperyearenoughtooffsetrisingsealevels,saysDay.Evenifthewetlandswererestoredandnewleveeswerebuilt,thecombinationofgeologicsubsidenceandrisingsealevelswilllikelysinkNewOrleansanothermeterby2100.Theproblemmightbesolvedbyanotherambitiousplan,saysRoelBoumans,acoastalscientistattheUniversityofVermontinBurlingtonwhodidhisph.D.atLSU:shoringupthelowestlandwithaslurryofsedimentpipedinfromtheriver.Themajorityofthebuildingsinthefloodedareaswillhavetoberazedanyway,hesays,sowhynottakethisopportunitytofixtherootoftheproblem?TherivercoulddepositenoughsedimenttoraisethebottomoftheNewOrleansbowltosealevelin50to60years,heestimates.Inthemeantime,peoplecouldliveintheseareasVenice-style,withbuildingsbuiltonstilts.Boumanseventakesitastepfurther:Youwouldhavetoraiseeverythingabout30centimetersonceevery30years,sowhynotmakethejobeasierbymakinghousesthatcanfloat.WhetherthatistechnicallyorpoliticallyfeasibleDay,forone,callsitnotlikelyremainstobeseen,especiallybecauseuntilnow,thepoorestresidentslivedinthelowestpartsofthecity.Anydecisiononhowbesttoprotectthecityinthefuturewillbetiedtohowmanypeoplewilllivethere,andwhere.theremaybealargecontingentofresidentsandbusinesseswhochoosenottoreturn,saysBillGood,anenvironmentalscientistatLSUandmanageroftheLouisianaGeologicalSurvey'sCoastalProcessessection.Itisalsonotyetclearhowdecisionsaboutthereconstructionwillbemade,saysGood,Sincethereisnoprecedentofcomparablemagnitude.Everylevelofgovernmentissuretobeinvolved,andtheprocessislikelytobeadhoc.Evenwiththeinevitableminglingofscienceandpolitics,westillhaveauniquechancetobackoutofsomebaddecisions,saysGood,whogrewupinNewOrleans.Ihopethatwedon'tletthisonce-in-historyopportunityslipthroughourfingersintherushtorebuildthecity:1.ThepassagegivesageneraldescriptionofthesuggestionstoreconstructNewOrleansafterHurricaneKatrina.2TwoexamplestodealwithwaterareNetherlandsandVenice.3Thecanalshavenothingtodowiththeflooding.4Theleveeswillbeshoredupfurtherwithclearlong-termfate.5ThebasicproblemforNewOrleansisthesubsidenceofMississippiRiverdelta.6ThekeycomponentofCoast2050iswetlandrestoration.7TheplanofCoast2050willgetbillionsoffederalfunding.8NewOrleanswilllikelysink_by2100.9Anotherambitiousplanistoshoringupthelowestlandwithaslurryofsediment10Howdecisionsaboutthereconstructionwillbemadeisalso11PartIVReadingComprehension(ReadinginDepth)(25minutes)SectionADirections:Inthissection,thereisapassagewithtenblanks.Youarerequiredtoselectonewordforeachblankfromalistofchoicesgiveninawordbankfollowingthepassage.Readthepassagethroughcarefullybeforemakingyourchoices.Eachchoiceinbankisidentifiedbyaletter.PleasemarkthecorrespondingletterforeachitemonAnswerSheet2withasinglelinethroughthecenter.Youmaynotuseanyofthewordsinthebankmorethanonce.Questions47to56arebasedonthefollowingpassage.Blueistheworld'sfavoritecolor.Itisalsothecolormostoftenwithintellectandauthority.Mostuniformsareblue.InGreekandRomanmythology,blueisthecolorofskygods.IntheOldTestament,Godisbydeepblue.Blueandturquoise(青绿色)arerepresentedbytheIslamicreligion.Itisthecolorinthemosquesoftheworld.Bluesymbolizestruth,peaceandcooperation.ItisthecoloroftheflagoftheUnitedNationsandofEurope.Asthecoolestcolorofthespectrum,itisthehuemostlikelytohavearecedingeffect.Asintheskiesandwaterthatus,blueisseenasapeacefulandcolor.Bluelighthasseentobloodpressurebycalmingthenervoussystemhencerelaxingthebodyandmind.Bluecreateslargeairyspaces.Itmakesroomsbigger.Thewrongshadeofbluecanbeuncomfortable.Itcanalsobecoldandsterile(枯燥的)unlesswithwarmercolors.Lightandsoftbluemakesusfeelquietandprotectedfromthebustle(喧闹)andoftheday.Bluebedroomsarerestful.Bluebathroomsareappropriatelywatery.Bluedepthwithgreensandreds.Darkbluerepresentsthenightmakinguscalm.Itsapparentlycalmingeffectmakesittheperfecttoneforthequieterofyourlivingspace.ArepresentedIactivityBengageJzonesCrefreshingKfoolishDsurroundLlineEcurvedMacquiresFdominantNassociatedGlowerOrash12SectionBPassageOneQuestion57to61arebasedonthefollowingpassage.Mostshoplifters(商店扒手)agreethattheJanuarysalesofferwonderfulopportunitiesforthehard-workingthief.Withtheshopssocrowdedandthestaffsobusy,itdoesnotrequireanyextraordinarytalenttohelpyoutotakeoneortwolittlethingsandescapeunnoticed.Itisknown,inthebusiness,ashoisting.Butthehoistinggameisnotwhatitusedtobe.Evenattheheightofthesales,shoplifterstodayneverknowiftheyarebeingwatchedbyoneofthoseevillittleballsthathangfromtheceilingsofsomanydepartmentstoresabovethemostdesirablegoods.Asifthatwasnottroubleenoughforthem,theycannowbefilmedatworkandobligedtoattendashowingoftheirperformanceincourt.SelfridgeswasthefirstbigLondonstoretoinstallclosed-circuitvideotapeequipmenttowatchitssalesfloors.InOctoberlastyearthestorewonitsfirstcourtcaseforshopliftingusingaevidenceavideotapeclearlyshowingacouplestealingdresses.Itwasanimportanttestcasewhichencouragedotherstorestoinstallsimilarequipment.Whentheballs,calledsputniks,firstmakeanappearanceinshops,itwaswidelybelievedthattheironlyfunctionwastofrightenshoplifters.Theirsomewhatridiculousappearances,thecuriousholesandredlightsgoingonandoff,certainlymakethetheorybelievable.Itdidnottakelong,however,forseriousshoplifterstostartshowingsuitablerespect.SoonaftertheequipmentwasinoperationatSelfridges,storedetectiveBrianChadwickwassittinginthecontrolroomwatchingawomansecretlyputtingbottlesofperfumeintoherbag.Assheturnedtogo,Chadwickrecalled,shesuddenlylookedupatthe'sputnik'andstopped.Shecouldnotpossiblyhaveseenthatthecamerawastrainedonherbecauseitiscompletelyhidden,butshemusthavehadafeelingthatIwaslookingather.Foramomentshepaused,butthenshereturnedtocounterandstartedputtingeverythingback.Whenshehadfinished,sheopenedherbagtowardsthecameratoshowitwasemptyandhurriedoutofthestore.Januaryisagoodmonthforshopliftersbecause_.Atheydon'tneedtowaitforstafftoservethemBtheydon'tneedanypreviousexperienceasthievesCtherearesomanypeopleinthestoreDJanuarysalesofferwonderfulopportunitiesforthem13Thesputnikshangingfromtheceilingareintended_.AtowatchthemostdesirablegoodsCtofrightenshopliftersbytheirappearanceBtomakefilmsthatcanbeusedasevidenceDtobeusedasevidenceagainstshoplifters14ThecaselastOctoberwasimportantbecause_.AthestoregotthedressesbackBtheequipmentwasabletofrightenshopliftersCothershopsfoundoutabouttheequipmentDthekindofevidencesuppliedwasacceptedbycourt15Thewomanstealingperfume_.AguessedwhatthesputnikswereforCcouldseethecamerafilmingherBwasfrightenedbyitsshapeDknewthatthedetectivehadseenher16Thewoman'sactionbeforeleavingthestoreshowsthatshe_.AwassorryforwhatshehaddoneBwasafraidshewouldbearrestedCdecidedshedidn'twantwhatshehadpickedupDwantedtoproveshehadnotintendedtostealanything17PassageTwoQuestions62to66arebasedinthefollowingpassage.Thelargestsharkknowntous,Megalodon,isextinct.Orisit?CarcharodonMegalodon,commonlyknownasMegalodon,isbelievedtohavelivedbetween1millionand5millionyearsagoandthoughttohavebeen52feetlong.Itis(orwas)asharkthathadajaw7ormorefeetwide.Fairlyrecently,therehasbeensomespeculationaboutwhetheritisextinctorjustoutofreach.ButfewpeoplebelievethatMegalodonhasfoundahomedeepintheocean.TherearemanyknownLivingFossils:Coelacanth,SeaCucumbers,SeaUrchins,Lobsters,SeaStars.Thecommononeslikelobstersandseaurchinsarenotreallylookedonasanythingamazing.They'vebeenaroundforthousandsofyearsormore,andareeasilyaccessibletous.Whatiftheyweren'taccessibleandyetstillexisted?Wewouldlabelthemextinct.ThediscoveryofaliveCoelacanth,afishlongbelievedextinct,challengedsomescientists'long-heldbeliefsonextinction.Therehavebeenrecentdiscoveriesofincrediblylargesquid,anddeep-seafishneverbeforeseenbyscientists.Inthe1960stheU.S.NavysetupunderwatermicrophonesaroundtheworldtotrackSovietsubmarines.Thenetwork,knownastheSoundSurveillanceSystem,stillliesdeepbelowtheocean'ssurfaceinalayerofwaterknownasthedeepsoundchannel.Thetemperatureandpressureofthechannelallowsoundwavestotravelundisturbed.NOAA'sAcousticMonitoringProjecthasbeenusingtheSoundSurveillanceSystemtolistenforchangesinoceanstructurelikeoceancurrentsorvolcanicactivity.Mostofthesoundsrecordedarecommonandofnoconcern.Onesound,identifiedin1977byU.S.Navyspysensors,wasodd.Itwasobviouslyamarineanimalbutthecallwasmorepowerfulthananyofthecallsmadebyanyotherreportedseacreature.Itwastoobigforawhale.Coulditbeadeep-seamonster?Onepossibilitywasagiantsquid,butnooneissure.ItwasnamedBloop.CoulditbeMegalodon?IfMegalodonisstillalivedowninthebottomoftheocean,wemaysomedaysoondiscoverit.Thenwhat?Deepseadivingwillneverbethesame,that'sforsure!ThefollowingiscommonlyknownEXCEPT_.AMegalodon,thelargestshark,isextinctBMegalodonisnotextinctbutjustoutofreachCMegalodonwas52feetlongandhadajaw7ormorefeetwideDMegalodonlivedbetweenseveralmillionyearsago.18WhatmakesscientistsdoubtaboutthebeliefthatMegalodonisextinct?AThediscoveryofmanyLivingFossils.CThediscoveryofaliveCoelacanth.BThediscoveryofthefossilsoflobsters.DThediscoveryofthefossilsofseaurchins.19Whatwasspecialintheirrecordedsounds?ATolistenforchangesinoceanstructure.BTolistenforchangesofoceancurrentsorvolcanicactivity.CToMakesurewhethertherewasagiantsquiddeepintheocean.DTofollowthetrackoftheSovietwarshipsunderwater.20Whatwasspecialintheirrecordedsounds?AAstrange,powerfulanimalsoundwasheard.CAseamonster'ssoundwasheard.BAbigwhale'ssoundwasheard.DAgiantsquid'ssoundwasheard.21Whatcanbeconcludedfromthepassage?AScientists'discoveriesalwayschangepeople'sbelief.BTherearetoomanysecretstobediscovered.CMegalodonmaybestillalivedeepintheocean.DDeepsoundchannelallowssoundwavestotravelundisturbed.22PartVCloze(15minutes)Beforethe20thcenturythehorseprovideddaytodaytransportationintheUnitedStates.Trainswereusedonlyforlong-distancetransportation.Todaythecaristhemostpopular_22_oftransportationinalloftheUnitedStates.Ithascompletely_23_thehorseasameansofeverydaytransportation.Americansusetheircarfor_24_90percentofallpersonal_25_.MostAmericansareableto_26_cars.Theaveragepriceofa_27_madecarwas,500in1950,740in1960andup_28_750in1975.DuringthisperiodAmericanearmanufacturerssetabout_29_theirproductsandworkefficiency.Meanwhile,ofthe_30_familyincreasedfrom1950to1975_31_thanthepriceofcars.Forthisreason,_32_anewcartakesasmaller_33_ofafamily'stotalearningstoday.In1951_34_ittook8.1monthsofanaveragefamily's_35_tobuyanewcar.In1962,anewcar_36_8.3ofafamily'sannualearnings.By1975itonlytook4.75_37_income.Inadd