大学英语六级模拟题03Word文档格式.docx

大学英语六级模拟题03Word文档格式.docx

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Q:

Forhowlongcantheywork?

Youwillread:

A）2hours.

B）3hours.

C）4hours.

D）5hours.

Fromtheconversationweknowthatthetwoaretalkingaboutsomeworktheywillstartat9o'

clockinthemorningandhavetofinishat2intheafternoon.Therefore,D）"

5hours"

isthecorrectanswer.Youshouldchoose［D］ontheAnswerSheetandmarkitwithasinglelinethroughthecenter.

SampleAnswer［A］［B］［C］[CD2][KG-1*4/5]［D］

1.A）BuysomethingintheBillsupermarket.

B）Getmoneytopayherbill.

C）Checktoseewhetherhecanpayincash.

D）Getacheckforthewoman.

2.A）Atclass.　B）Backathome.

C）Atwork.　D）Inhospital.

3.A）Shewillhelphim.

B）Shefinishedherstwodaysago.

C）Shecompletedherworkveryquickly.

D）Sheisstilldoingtheproject.

4.A）Angry.　B）Hungry.

C）Tired.　D）Dissatisfied.

5.A）Itisnottheirs.

B）Ithassomeproblems.

C）Itisoutofwarranty.

D）Itwasstolen.

6.A）Shedoesn'

tlikepicnic.

B）Itwillbetoohot.

C）Shewillhaveanexamnextweek.

D）Thebiologyclasswillgotothebeachnextweek.

7.A）ItdoesnotconcernJohn.

B）Johndoesnotcareabouthiscar.

C）Johnwillhelphimfixthecar.

D）HewantsJohntofixthecar.

8.A）20miles.　B）6miles.

C）14miles.　D）26miles.

9.A）It'

stimetourgehimtostudymath.

B）Hehimselfshouldmakethedecision.

C）Theyshouldhelphimstudymath.

D）Theyshouldleaverightnow.

10.A）Ithasbeenpublished.

B）Ithasbeenthrownoutasjunk.

C）Ithasbeendeletedfromthecomputer.

D）Thewomancannotgetitanylonger.

Section　　B

PassageOne

Questions11to13arebasedonthefollowingpassage:

11.A）Soil.　B）Humanpopulation.

C）Forest.　D）Water.

12.A）Byusingsatelliteimages,maps,etc.

B）Bystudyingspecificfarmingmethods.

C）Bystudyingthevariationofhumanpopulation.

D）Byanalyzingthequalityofcrops.

13.A）Byforcingthemfarming.

B）Byaffectingthequalityofsoils.

C）Byaddingchemicalsandpollutethewaterways.

D）Byaffectingtheenvironmentstheylivein.

PassageTwo

Questions14to16arebasedonthefollowingpassage:

14.A）Toestimatetheextremeweather.

B）Todevelopthesatellitetechnology.

C）Toimproveagriculturaloutput.

D）Tolearnhowtochangeinformationtomapsmoreefficiently.

15.A）Byturningtheintensityofsunshineintomaps.

B）Byanalyzingtherecentweatherreport.

C）Bycapturingthemicrowaveradiationfromthesoil.

D）Byanalyzinginformationprovidedbygroundobservationcenters.

16.A）Acquireinformationfromsatellitesmoreefficiently.

B）Torealizefullcoverageofareathesatellitepassesover.

C）Buildingmoregroundobservationcenters.

D）Comparesatellitesinformationwiththosefromground.

PassageThree

Questions17to20arebasedonthefollowingpassage:

17.A）Callonpeopletoprotectsharks.

B）Pointoutthelivingenvironmentofsharks.

C）Explainwhythesharksaredangerous.

D）Anintroductiontosharks.

18.A）Bygoodsenseofwaterwavesmadebyquarries.

B）Bygoodsenseofsmellandelectricalmagneticpower.

C）Bygoodsenseoflight.

D）Bygoodsenseofblood.

19.A）Bonestructure.

B）Smellability.

C）Birthmode.

D）Recoverabilityagainstdisease.

20.A）Theirtastymeat.

B）Theprincipleoftheirdefensesystemagainstdisease.

C）Theirsolidskin.

D）Theprincipleoftheirbirthmodes.

Part　Ⅱ

ReadingComprehension（35minutes）

Questions21to25arebasedonthefollowingpassage:



　　ScientistssaytherehasbeenaseveredecreaseintheamountofwaterinLakeChadinnorthernAfricainthelastthirtyyears.Theyreportthatnatureandhumansshareequalblameforthisloss.

　　In1963thefreshwaterlakecoveredtwenty-five-thousand-squarekilometers.Nowthelakeisonlyaboutfivepercentofthatsize.Itmeasuresonlyaboutone-thousand-three-hundredsquarekilometersinthedryseason.

　　FournationssurroundLakeChad.PeopleinNiger,Nigeria,Chad,andCameroonuseitforwater,fishandplantlife.

　　MichaelCoeandJonathanFoleyarewaterexpertsattheUniversityofWisconsininMadison.TheyreportedaboutLakeChadintheJournalofGeophysicalResearch.Theysaytheareahassufferedfromalackofheavyrainformorethanthirtyyears.Thishasforcedpeopletobuildsystemstocarrywatertodryland.Theseirrigationsystemsfurtherdecreasethelake.

　　MisterCoesaysLakeChadwillbeonlyasmallbodyofwaterinthefuture.Hesayspeoplestillcangetwaterfromthelaketodrinkandforcrops.Buthesaysthelakewillnolongerprovideahealthyenvironmentforfishandplantlife.

Theresearchersusedacomputertostudywhatcausedthewaterloss.Theircomputerstudyestimatedtheclimateandamountofwaterinthearea.Theestimatestartedwiththeearly1960s.Thentheresearcherscomparedtheestimateswiththearea'

srecordedclimateandwatersupplyforthesameperiod.

　　Thecomputerstudyshowedresultssimilartotherecordedonesforthefirsttwentyyears.Buttherewasabigchangeinthe1980s.Atthattime,thelakegotsmallermuchfasterthanthecomputerresearchhadestimated.

　　Theresearcherssaymajorirrigationsystemswerebuiltinthe1980s.ThesystemstookwaterfromtworiversthatflowintoLakeChad.TheChariandLogoneriverscarrymostofthewaterthatentersthelake.Thestudyshowedtheincreasedirrigationreducedtheflowinthetworivers.Climatechangesalsowereresponsibleforthereduction.Todaytheflowofthetworivershasbeenreducedbyalmostseventy-fivepercent.

　　Scientistssaytheproblemisexpectedtoworseninthecomingyearsasthepopulationanddemandforwatercontinuetoincrease.

21.Whatisthispassagemainlyabout?

A）DemonstratingtheseriousweatherconditionaroundLakeChad.

B）Introducingpeople'

sactivityaroundLakeChad.

C）AnalyzingofthefactorsthatcausewaterdecreasesinLakeChad.

D）Introducingscientists'

workaboutwaterconditioninLakeChad.

22.WhatdidpeopledotosolvetheproblemofrainlackaroundChadLake?

A）Theymovedoutofthisarea.

B）TheydrewwaterfromLakeChad.

C）Theycarriedwaterfromotherareas.

D）Theyutilizeseawaternearthisarea.

23.Whichofthefollowingistrueaccordingtothispassage?

A）ChadLakelocatedinthemiddleofChadinnorthernAfrica.

B）ThewaterfromChadwatercannowonlybeusedforirrigation.

C）TheareaaroundChadLakehassufferedfromheavyrainlackmanydecades.

D）PopulationaroundtheChadLakenowbeginstodecreaseduetowaterlack.

24.Whycomputerdatabecomeimprecisein1980s?

A）Therelatedprogramsonthecomputerwereoutofdate.

B）Moreandmorepeopledrewwaterdirectlyfromthelakefordrink.

C）Aheavyrainhappenedaround1980.

D）Theirrigationfromthesourcewaterincreases.

25.Whatisscientists'

attitudetowardsthefutureofChadLake?

A）Pessimism.　　　　　B）Hopeful.

C）Indifferent.　D）Doubtful.

Questions26to30arebasedonthefollowingpassage:

　　ScientistshavelongbelievedonewaytostoptheEarth'

satmospherefromwarmingisbyplantingmoretrees.Theideaisthatmoretreeswilltakeinorabsorbsomeofthecarbondioxideintheatmosphere.Carbondioxideisagasreleasedbycars,factoriesandotherhumanactivities.ThegastrapsheatintheEarth'

satmosphere,whichwarmstheplanet.However,twonewstudieshavefoundthattreesmaynotbeashelpfulinreducingcarbondioxideashadbeenthought.

　　ThefirststudywasdoneatDukeUniversityinDurham,NorthCarolina.Researcherspumpedextracarbondioxideintoatestareawherepinetreesweregrowing.Thetreesgrewthirty-fourpercentfasterduringthefirstthreeyears.However,intime,thetreesslowedtoabouttheirnormalgrowthrate.Thescientistssaythisisbecausetreesneedothernutrients,suchasnitrogen.

　　Inthesecondstudy,researchersfromDukeandBowdoinCollegeinBrunswick,Maineexaminedthesoilaroundtrees.Theydiscoveredthatastheleavesbrokedownintothesoil,allthecarbonwasnottrappedinthesoil.Muchofitwasreleasedintotheatmosphereascarbondioxide.

　　ThefindingsofthetwostudieswerepublishedlastmonthinNaturemagazine.Theysuggestthereislimitedvalueinplantingtreestoreducethecarbondioxidepollutionintheatmosphere.

　　Forestplantinghasbeenapartofnegotiationsonaworldagreementtoreducegreenhousegasesthatscientistsbelievecauseglobalwarming.TheUnitedStates,Canada,Japanandsomeotherindustrialcountrieshavesupportedtheidea.Butthisnewresearchsuggeststheideaisnotaseffectiveasenvironmentalactivistshadthought.ScientistRamOrenofDukeUniversityledthestudyontreegrowth.Hesaysthatearlierestimatesontheabilityofforeststoabsorbcarbondioxidewereoverlyhopeful.

　　Somescientistsnotinvolvedinthestudiessaytheresearchprovidessomeofthefirstevidenceonhowtreesreac