大学英语六级模拟题18

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PartⅠListeningComprehension(20minutes)SECTIONADirections:Inthissection,youwillhear10shortconversations.Attheendofeachconversation,aquestionwillbeaskedaboutwhatwassaid.Boththeconversationandthequestionwillbespokenonlyonce.Aftereachquestiontherewillbeapause.Duringthepause,youmustreadthefourchoicesmarkedA),B),C)andD),anddecidewhichisthebestanswer.ThenmarkthecorrespondingletterontheAnswerSheetwithasinglelinethroughthecentre.Example:Youwillhear:W:IcertainlyhopethelibrarywillbeopenthisSaturday.M:Thesignsayslibraryhours!Weekdays8am.to9pm.OnSaturdays9to5,closedSunday.Q:WhenwillthelibrarybeopenonSaturday?Youwillread:A.8am.to9am.B.5am.to9pm.C.9am.to5pm.D.closedFromtheconversationweknowthatthetwoaretalkingaboutlibraryhours.Onweekdaysthelibraryisopenfrom8am.to9pm.OnSaturdaysitisopenfrom9am.to5pm.ThereforeC)“9am.to5pm.”isthecorrectanswer.YoushouldchooseC)ontheAnswerSheetandmarkitwithasinglelinethroughthecentre.SampleAnswer［A］［B］［C］［D］

1.[0.5分]

A.Thefoodthereisverygood.

B.ItisclosedonTuesdays.

C.Hecouldnotfindit.

D.Itisnotasgoodasthestationplace.

2.[0.5分]

A.Tomorrow.

B.Anytimebuttonight.

C.Never.

D.Itisnotclearwhenhewillwanttoseemore.

3.[0.5分]

A.Rest.

B.Specialtreatment.

C.Specialmedicine.

D.Operation.

4.[0.5分]

A.HedoesnotthinkPierreisagoodartist.

B.Pierreisalwaysbusypainting.

C.Hisarthasimproved.

D.Hehasnotalent.

5.[0.5分]

A.Sheknowswhereitis.

B.Shewantstogoshopping.

C.Heshouldaskwhereitis.

D.Hehastolookmorecarefully.

6.[0.5分]

A.Yes,afterhistrip.

B.No,hehasnomoney.

C.Whenheplansforit.

D.No,hisoldoneisgood.

7.[0.5分]

A.Hereallydoesn’tknow.

B.Hethinkstheweatherwillnotmakeanydifference.

C.Hethinkstheywillloseiftheweatherisbad.

D.Hehasnoopiniononthematter.

8.[0.5分]

A.Sheagreeswithhimpartially.

B.Shedoesn’tagreewithhim

C.Sheadviseshimtobemorecareful.

D.Shesuggeststhathebestrictwithhisson.

9.[0.5分]

A.AfterChristmasholidays.

B.DuringtheChristmasseason.

C.Duringasale.

D.Inthespring.

10.[0.5分]

A.JohnshouldnottalktoBillanymore.

B.JohnshouldtakeBill’sremarksseriously.

C.JohnshouldtellBillnottothinknegatively.

D.JohnshouldpaylittleattentiontowhatBillsays.

SECTIONBDirections:Inthissectionyouwillhear3shortpassages.Attheendofeachpassage,youwillhearsomequestions.Boththepassageandthequestionswillbespokenonlyonce.Afteryouhearaquestion,youmustchoosethebestanswerfromthefourchoicesmarkedA),B),C),andD).ThenmarkthecorrespondingletterontheAnswerSheetwithasinglelinethroughthecentre.Passage1Questions11to14arebasedonthepassageyouhavejustheard.

11.[0.5分]

A.Thattheywereunlimited.

B.Thattheyshouldbecarefullyconserved.

C.Thattheyweredeclining.

D.Thattheywereusedup.

12.[0.5分]

A.Searesourcesdeclinemorerapidlythanotherresources.

B.Fishingisimportanttoindustry.

C.Fishisanimportantfoodsource.

D.Fishismorethreatenedthanotheranimals.

13.[0.5分]

A.Thedeclinewouldhavenoeffect.

B.ThedeclinewouldaffectonlyEurope.

C.Thedeclinewouldhaveaglobaleffect.

D.ThedeclinewouldaffectonlyAmerica.

14.[0.5分]

A.Animalsaboutwhichconservationistsarealreadyconcerned.

B.Animalsthatwillsomedaysupplyfood.

C.Animalsthatdependonfishfortheirfoodsupply.

D.Animalsthathavebeensavedthroughtheeffortsofconservationists.

Passage2Questions15to17arebasedonthepassageyouhavejustheard.

15.[0.5分]

A.IntheSanFranciscoarea.

B.OntheislandofNimi.

C.InthePacificOcean.

D.AlongtheU.S.coast.

16.[0.5分]

A.Theearthquakewasserious.

B.Newearthquakesarenotexpected.

C.Anislandwasdestroyedbytheearthquake.

D.Theearthquakewasmild.

17.[0.5分]

A.Theywillbeofhighintensity.

B.Theywilloccuralongthecoast.

C.Earthquakesofunknownintensitywilloccurthere.

D.Theyarepredicted100milesaway.Passage3Questions18to20arebasedonthepassageyouhavejustheard.

18.[0.5分]

A.Theadvantagesofrefrigeration.

B.Cookingfoodinthesummer.

C.Foodspoilageinthesummer.

D.Funinthesummer.

19.[0.5分]

A.Cookies.

B.Chickens.

C.Eggs.

D.Icecream.

20.[0.5分]

A.Eatitimmediately.

B.Tryalittle.

C.Throwitaway.

D.Cookitthoroughly.

PartⅡReadingComprehension(35minutes)Directions:Therearefourpassagesinthispart.Eachpassageisfollowedbysomequestionsorunfinishedstatements.ForeachofthemtherearefourchoicesmarkedA),B),C)andD).YoushoulddecideonthebestchoiceandmarkthecorrespondingletterontheAnswerSheetwithasinglelinethroughthecentre.Passage1Questions21to25arebasedonthefollowingpassage:Televisionisoneoftoday’smostpowerfulandwidespreadmeansofmasscommunication.Itdirectlyinfluencesourlivesonbothashortandlong-termbasis;itbringsworldwidesituationsintoourhomes;itaffordsextensiveopportunitiesforacquiringhighereducation;anditperformsthesetasksinaconvenientyeteffectivemanner.Weareallawareofthepopularlyacceptedapplicationsoftelevision,particularlythoserelativetoentertainmentandnewsbroadcasting.Television,however,hasalsobeenavitallinkinunmanneddeepspaceexploration(suchastheVoyagerIandⅡmissions),inprovidingvisionsfromhazardousareas(suchasproximitytoradioactivematerialsorenvironments)inunderwaterresearch,inviewingstormsmovingacrossametropolitanarea(thecamerabeingplacedinaweather-protectiveenclosurenearthetopofatower),etc.Theearth’sweathersatellitesalsousetelevisioncamerasforviewingcloudcoverandmovementsfrom20,000milesinspace.Infraredfiltersareusedfornightviews,andseveralsystemsincludeaspinningmirrorarrangementtopermitwide-areaviewsfromthecamera.Realizingtheunlimitedapplicationsfortoday’stelevision,onemaythuslogicallyponderthetruebenefitsofconfiningmostofourvideoactivitiestothemass-entertainmentfield.ConventionaltelevisionbroadcastingwithintheUnitedStatescentresaroundfreeenterpriseandpublicownership.Thisrequiresfundingbycommercialsponsors,andthusfunctionsinarevenue-producingbusinessmanner.TelevisioninUSSR-subjectedareas,conversely,isagovernmemt-ownedandmaintainedarrangement.Whilesucharrangementseliminatetheneedforcommercialsponsorship,italsohasthepossibilityoflimitingthetypeofprogramsavailabletoviewers(anumberofpurelyentertainmentprogramssimilartotheclassic“Bewitched”,however,havebeenseenonthesegovernment-controllednetworks.Allisn’tasgrayanddismalastheuninformedmightunnecessarilyvisualize).AhighlymodifiedformoftelevisioncalledSlow-ScanTVispresentlybeingusedbymanyAmateurRadiooperatorstoprovidedirectvisualcommunicationswithalmostanyareaoftheworld.ThisuniquevisualmoderecentlyallowedpeopleonthetinySouthPacificcountryofPitcairnIslandtoview,forthefirsttimeintheirlives,distantareasandpeopleoftheworld.ThechiefradioAmateurandcommunicationsofficerofPitcairn,incidentally,isthelegendaryTomChristian-great,greatgrandsonofTomChristianof“MutinyontheBounty”fame.RadioAmateursinmanylandsworkedtogetherforseveralmonthsestablishingvisualcapabilitiesforPitcairners.Theresultshaveprovenspectacular,yetthevisualcapabilitieshaveonlybeenusedforhealtheducation,orwelfarepurposes.CommercialTVisstillunknowntonativesofthattinycountry.Numerousotherformsoftelevisionandvisualcommunicationhavealsobeenusedonasemi-restrictedbasis.Thisindicatesthemanyuntappedareasofvideoandtelevisionwhichmaysoonbeexploitedonamorewidespreadbasis.Theoldclichéofapicturebeingworthathousandwordstrulyhasmerit.

21.Accordingtothepassage,applicationsoftelevisionareeasilyacceptedin______.[1分]

A.metropolitanarea

B.deepspaceexploration

C.programsaboutentertainmentandnews

D.remoteareas

22.Whichofthefollowingstatementsistrueintheeyesofthewriter?[1分]

A.Applicationsoftelevisionarebeneficialtobigcities.

B.Applicationsoftelevisionarebelievedtobegoodactivities.

C.Applicationsoftelevisionarerestrictedtotelevisionsystems.

D.Applicationsoftelevisiondobenefittothemassentertainmentfield.

23.AccordingtothepassagetelevisioninUSSR______.[1分]

A.islimitedtoarevenue-producingbusinessmanner

B.requiresfundingbycommercialsponsors

C.putsawaytheneedofcommercialaid

D.isbadlyinneedofcommercialhelp

24.Inthepassage,theauthortriestotelluspurelyentertainmentprogramssimilartotheclassic“Bewitched”______.[1分]

A.areasgoodasthoseintheU.S.

B.havebeenseenonmanygovernment-controllednetworks

C.areasgrayanddismalastheuninformedmightunnecessarilyvisualize

D.arenotasgloomyastheuninformedmightunnecessarilyvisulize

25.Theauthor’sattitudetowardtelevisionprogramsis______.[1分]

A.positive

B.indifferent

C.critical

D.dangerous

Passage2Questions26to30arebasedonthefollowingpassage:TheforestfromwhichMantakeshistimberisthetallestandmostimpressiveplantcommunityonEarth.IntermsofMan’sbrieflifeitappearspermanentandunchanging,savefortheseasonalgrowthandfalloftheleaves,buttoforesteritrepresentstheclimaxofalongsuccessionofevents.Nowoodedlandscapeweseetodayhasbeenforestforalltime.Plantshaveminimumrequirementsoftemperatureandmoistureand,inagespast,virtuallyeverypartofEarth’ssurfacehasatsometimebeeneithertoodryortoocoldforplantstosurvive.However,assoonasclimaticconditionschangeinfavourofplantlife,afascinatingsequenceofchangesoccurs,calledaprimarysuccession.Firsttocolonizethebarrenlandarethelowlylichens,survivingonbarerock.Slowly,theacidsproducedbytheseorganismscracktherocksurface,plantdebrisaccumulates,andmossesestablishashallowroot-hold.Fernsmayfollowand,withshortgrassesandshrubs,graduallyformacoveringofplantlife.Rootsprobeevendeeperintothedevelopingsoilandeventuallylargeshrubsgivewaytothefirsttrees.Thesegrowrapidly,cuttingoffsunlightfromthesmallerplants,andsoonestablishcompletedomination-closingtheirranksandformingaclimaxcommunitywhichmayendureforthousandsofyears.Yeteventhiscommunityisnoteverlasting.Firemaydestroyitoutrightandsettlersmaycutitdowntogainlandforpastureorcultivation.Ifthelandisthenabandoned,asecondarysuccessionwilltakeover,developingmuchfasteronthemorehospitablesoil.Shrubsandtreesareamongtheearlyinvaders,theirseedscarriedbythewind,bybirdsandlodgedinthecoatsofmammals.Foraslongasitstandsandthrives,theforestisavastmachine,storingenergyandmanyelementsessentialforlife.

26.Whatdoestheforeststrikemankindaspermanent?[1分]

A.Thetreesareincommunity.

B.Theforestisrenewedeachseason.

C.Man’slifeisshortincomparison.

D.Itisanessentialpartofourlives.

27.Whathassometimescausedplantstodieoutofthepast?[1分]

A.Interferencefromforesters.

B.Variationsinclimate.

C.Theabsenceofwoodedland.

D.Theintroductionofnewtypeofplants.

28.Ina“primarysuccession”,whatmakesitpossibleformossestotakeroot?[1分]

A.Thetypeofrock.

B.Theamountofsunlight.

C.Theamountofmoisture.

D.Theeffectoflichens.

29.Whatconditionsareneededforshrubstobecomeestablished?[1分]

A.Fernsmusttakeroot.

B.Thegroundmustbecoveredwithgrass.

C.Moresoilmustaccumulate.

D.Smallerplantsmustdieout.

30.Whyisa“secondarysuccession”quicker?[1分]

A.Thegroundismoresuitable.

B.Thereismorespacefornewplants.

C.Birdsandanimalsbringnewseeds.

D.Itissupportedbytheforest.[ZK)]

Passage3Questions31to35arebasedonthefollowingpassage:FeathercloaksarethemostspectacularofallobjectsofnativeHawaiianmanufacture.InthehighlystratifiedsocietyoftheislandsbeforetheirdiscoverybyCaptainJamesCookin1788,thecloakswereneververynumerous,butpowerfulchiefsoftenacquiredseveralthroughinheritanceorasbattleprizes.Althoughthefeathersweregatheredbythecommonpeopletodefraypartoftheirtaxes,andwomenwerepermittedtocleanandsortthem,onlymenofhighrank,surroundedbysacredtaboos,wereallowedtomakethecloaks.Themanufacturingprocessinvolvedtyingsmallbunchesofred,yellow,green,orblackfeatherswitholonafiber.LargecloaksliketheroyalrobewornbyKamehamehaI,thefirstkingofalltheislands,requiredsomehalf-millionfeathers.Todaythesecloaksareethnologicaltreasures,buttotheearlyshipcaptaintheywerelittlemorethanseeminglyplentifulcuriositiesthattheHawaiianshighlyvaluedbutgaveawayortradedforsuchtriflesasironknives.Inturn,theEuropeanstradedthesecuriosities.ThispracticebeganwithCook’sofficers,whotradedthecloaknowinLeningradinexchangeforprovisions.In1825,LordByron,commanderoftheBritishshipBlonde,predictedthat“thesplendidwar-cloak”wouldsoonbemoreeasilyfoundinEuropethaninHawaii.BrighamfoundonlyfiveinHawaiiwhenhemadehisfeatherworksurveyin1899.TodaytwentyofthefiftyknowncloaksarestillintheBritishIsles.

31.TheearlyshipcaptainswhovisitedHawaiiwere______.[1分]

A.convincedoftheusefulnessofthefeathercloaks

B.inclinedtooverestimatetheavailabilityofthefeathercloaks

C.awareofthehistoricalandculturalsignificanceofthefeathercloaks

D.curiousaboutwhatthenativesthoughtofthefeathercloaks

32.ThepassagesuggeststhatHawaiianfeathercloaksweremadeonlyby[CD#4].[1分]

A.ordinarycitizens

B.menofhighstatus

C.battleprisoners

D.trader

33.Feathersusedinmakingcloaksweregatheredmainlyby______.[1分]

A.high-rankingwomen

B.high-rankingmen

C.peopleoflowrank

D.powerfulmalechiefs

34.ItisclearfromthepassagethatbeforethearrivalofCaptainCookHawaiiansocietywas______.[1分]

A.lackinginreligiousorganization

B.peacefulandprosperous

C.rigidlyclassstructured

D.lackinginpracticalskills

35.WhywouldthefeathercloaksbemoreeasilyfoundinEuropeancountriesthaninHawaii?[1分]

A.TheywerebroughtoutbyCaptainJamesCook.

B.Theyweretradedinexchangeforsupplyoffoodanddrinks.

C.TheywerefewerfeathercloaksfoundinHawaii.

D.TheywerebroughtoutbyBrigham.

Passage4Questions36to40arebasedonthefollowingpassage:Thebrainisorganizedintodifferentregions,eachresponsiblefordifferentfunctions,andinhumansthisorganizationisverymarked.Thelargestpartsofthebrainarethecerebralhemispheres,whichoccupymostoftheinterioroftheskull.Theyarelayeredstructures,themostcomplexbeingtheouterlayer,knownasthecerebralcortex(大脑皮层),wherethenervecellsareextremelydenselypackedtoallowgreatinterconnectivity.Itsfunctionisnotfullyunderstood,butwecangetsomeindicationofitspurposefromstudiesofanimalsthathavehaditremoved.Adog,forexample,canstillmoveinacoordinatedmanner,willeatandsleep,andevenbarkifitisdisturbed.However,italsobecomesblindandlosesitssenseofsmell-moresignificantly,perhaps,itlosesallinterestinitsenvironment,notrespondingtopeopleortoitsname,nortootherdogs,evenoftheoppositesex.Italsolosesallabilitytolearn.Ineffect,itlosesthecharacteristicsthatwegenerallyrefertoasindicatingintelligence-awareness,interestandinteractionwithanenvironment,andanabilitytoadaptandlearn.Thusthecerebralcortexseemstobetheseatofthehigherorderfunctionsofthebrain,andthecoreofintelligence.Thecerebralcortexhasbeenthesubjectofinvestigationbyresearchersformanyyears,andisslowlyrevealingitssecrets.Itdemonstratesalocalizationoffunctions,inthatdifferentareasofthecortexfulfilldifferentfunctions,suchasmotioncontrol,hearing,andvision.Thevisualpartofthecortexisespeciallyinteresting.Inthevisualcortex,electricalstimulationofthecellscanproducethesensationoflight,anddetailedanalysishasshownthatspecificlayersofneuronsaresensitivetoparticularorientationsofinputstimuli,sothatonelayerrespondsmaximallytohorizontallines,whileanotherrespondstoverticalones.Althoughmuchofthisstructureisgeneticallypredetermined,theorientation-specificlayoutofthecellsappearstobelearntatanearlystage.Animalsbroughtupinanenvironmentofpurelyhorizontallinesdonotdevelopneuronstructuresthatrespondtoverticalorientations,showingthatthesestructuresaredevelopedduetoenvironmentalinputandnotpurelyfromgeneticpredetermination.Thisiscalledself-organizationofthevisualcortexsincethereisnoexternalteachertoguidethedevelopmentofthesestructures.

36.Theorganizationofbrainischaracterizedby____.[1分]

A.theinterioroftheskull

B.differentregionsresponsiblefordifferentfunctions

C.theouterlayer-thecerebralcortex

D.thenervecellsdenselypacked

37.Accordingtothepassage,adogcanstillmoveinacoorinatedmanner,willeatandsleep,andevenbarkwhen____is(are)removed.[1分]

A.nervecells

B.theskull

C.thehemispheres

D.thecerebralcortex

38.Theword“seat”inline10ofthefirstparagraphmeans____.[1分]

A.achair

B.partofthebody

C.placewheresomethingisorwheresomethingiscarriedon

D.cortex

39.Thevisualpartofthecortexisespeciallyinterestingbecause____.[1分]

A.specificlayersofneuronsaresensitivetoparticularorientationsofinputstimuli.

B.muchofthestructureisgeneticallypredetermined

C.horizontallinesarestimulated

D.verticallinesarestimulated

40.Whichofthefollowingheadingsisthebesttitleforthispassage?[1分]

A.TheCerebralCortex.

B.ThespecificLayersofNeurons.

C.TheOrganizationoftheBrain.

D.TheCerebralHemispheres.

PartⅢVocabulary(20minutes)Directions:Thereare30incompletesentencesinthispart.ForeachsentencetherearefourchoicesmarkedA)、B）、C）andD)ChosetheONEthatbestcompletesthesentence.ThenmarkthecorrespondingletterontheAnswerSheetwithasinglelinethroughthecentre.

41.Healwaystakesa____withhimtocleanthewindscreenofhiscar.[1分]

A.garment

B.cloth

C.clothing

D.stuff

42.IfBobthinksourplanwillsucceed,itprobablywill,his____areusuallycorrect.[1分]

A.acclaims

B.hunches

C.mottoes

D.suspensions

43.Doveryyoungchildrenreally____foreigntravel?[1分]

A.appreciate

B.benefit

C.delight

D.evaluate

44.Allthepartsofthesewashingmachinesare____,sothatitisveryconvenienttoreplacethem.[1分]

A.normalized

B.modernized

C.mechanized

D.standardized

45.Jim’sclose____tohisbrothermadepeoplemistakethemforoneanother.[1分]

A.accuracy

B.membership

C.probability

D.resemblance

46.Hisaudiencedidnotfindtheseworkseasytounderstand,thoughtodaywefindthemmore____.[1分]

A.fantastic

B.comprehensible

C.favoured

D.notorious

47.Hecannot____ignoranceashisexcuse;heshouldhaveknownwhatwashappeninginhisowndepartment.[1分]

A.insist

B.plead

C.refer

D.defend

48.Theold____thattookthemtotheislandwasnotverycomfortable.[1分]

A.engine

B.pier

C.oar

D.ferry

49.Themanagingdirectortookthe____fortheaccident,althoughitwasnotreallyhisfault.[1分]

A.guilt

B.blame

C.charge

D.accusation

50.Itisstrictly____thataccesstoconfidentialdocumentsisdeniedtoallbutafew.[1分]

A.secured

B.forbidden

C.regulated

D.determined

51.Man’sunderstandingandhismasteringofmatterandenergy____hisclaimtosuperiority;providehimwiththebasisforenrichinganddeepeninghumanexperience.[1分]

A.designate

B.deserve

C.justify

D.illustrate

52.Thestorythatfollows____twofamouscharactersoftheRockyMountaingoldrushdays.[1分]

A.concerns

B.states

C.proclaims

D.relates

53.Theclubmembersvotedto____thebanonsmoking.[1分]

A.refrain

B.recess

C.resides

D.repeal

54.Thepoliceofficerissueda____fortheman’sarrest.[1分]

A.legend

B.parcel

C.receipt

D.warrant

55.Nomatterhowangryhewashewouldnever____toviolence.[1分]

A.resolve

B.resign

C.exert

D.resort

56.Toomuch____toXrayscancauseskinburns,cancerorotherdamagetothebody.[1分]

A.disclosure

B.exhibition

C.contact

D.exposure

57.Themanagergaveoneofthesalesgirlsanaccusinglookforher____attitudetowardcustomers.[1分]

A.impartial

B.mild

C.hostile

D.opposing

58.Whenconfrontedwithsuchquestions,mymindgoes____,andIcanhardlyremembermyowndateofbirth.[1分]

A.dim

B.blank

C.faint

D.vain

59.Whenhehadfinishedplaying,thechildwasmadeto____allthetoyshehadbroughtouteverywhere.[1分]

A.putaway

B.putup

C.putout

D.putoff

60.Thesurvival____oftheseedlingswassolowthattheexperimentersalmostlosttheirhope.[1分]

A.ratio

B.degree

C.duty

D.rate

61.Hissonexpectedto____abusiness.[1分]

A.reside

B.construct