2013专升本英语模拟试题四

专升本英语模拟试题（四）模拟试题（四）PartIReadingComprehension(40%35minutes)Directions:Inthisparttherearefourpassages.Eachpassageisfollowedbyanumberofcomprehensionquestions.Readthepassageandchoosethebestanswertoeachquestion.Then,markyouranswerbyblackeningthecorrespondingletterontheAnswerSheet.Questions1to5arebasedonthefollowingpassage:Agreenhouseisabuildingmadeofglasswhichisusedforkeepingplantswarmwhentheoutsidetemperatureislow.Inasimilarwaythereareseveralgasesintheatmosphere,whichtraptheheatproducedbythesunandpreventitfromescaping.Thesegasesareknownas“greenhousegases”,andthewayinwhichtheytrapheatintheatmosphereiscalledthe“greenhouseeffect”.Thisisnotsimplyairpollution.Mostofthemaingreenhousegasesexistnaturallyinsmallamountsinouratmosphere,andwithoutthemearthwouldbe30degreescolderandhumanlifewouldnotexist.Inotherwords,thegreenhouseeffectisanaturalcoursewhichistosomedegreehelpfultous.Theproblemisthatinthelastcenturyandahalf,wehavebeenputtingtoomanyofthesegasesintotheearth'satmospherebyburninglargequantitiesofcoalandoilandbycuttingdownforests.Therapidincreaseingreenhousegasesismakingtheworldwarmer.Theworld’stemperaturehasalreadygoneupbyhalfadegreethiscentury,andthesealevelhasrisenby10centimeters.Iftheamountofcarbondioxideintheatmospheredoublestherewillprobablybeariseintheearth’stemperatureofbetween1and4.Thismayseemasmallincrease,butitwouldbeenoughtocausemajorchangesingeographyandagriculture.Largeareasoftheworldwouldbeflooded,andsomeareaswouldbecomedryandunabletoproducecrops.Itisimportant,too,toconsiderthattheremaybeadelayofabout30yearsinthegreenhouseeffect.Thismeansthatweareprobablyexperiencingonlynowtheeffectofthegasesputintotheatmospherebeforethe1960s.Sincethen,ouruseofthesegaseshasgreatlyincreased.1.“Greenhouseeffect”means_________.A.thewayinwhichgasesareusedforkeepingplantswarmB.anaturalcoursewhichistosomedegreehelpfultousC.thewaygreenhousegasestrapheatontheearthD.thewholecourseinwhichgreenhousegasespreventheat2.Iftherewerenogreenhouseeffect,___________.A.noplantswouldgrowonourplanetB.earthwouldbethirtydegreescolderC.mancouldnotliveontheearthD.alloftheaboveanswersarecorrect3.Whichofthefollowingisnottrue?A.Burningtoomuchcoalandoilproduceslotsofgreenhousegases.B.Ithasbecomewarmerontheearthnowthaninthepast.C.Gasesputintotheatmospherenowwilleffecttheearthyearslater.D.Thetemperatureinagreenhouseisashighasthatintheatmosphere.4.Supposetheearth'stemperatureroseby3degrees_________.A.greatharmwouldbedonetomankindB.thesealevelwouldgoupby10centimetersC.allthelandintheworldwouldbefloodedD.cropswouldbeunabletogrowontheearth5.Thispassagemainlydealswith_________.A.theconceptandharmofgreenhouseeffectB.therelationbetweengreenhousegasesandmanC.theconceptandchangeofgreenhouseeffectD.theeffectoftheriseoftheearth'stemperatureQuestions6to10arebasedonthefollowingpassage:OurplanwastodriveintoCambridge,catchthe7:34traintoLiverpoolStreetstation,thentoseparateandmeetagainforlunch.WeshouldhavearrivedatLiverpoolStreetat9:19,butduetoatypicalLondonfog,thetrainhadtomovealongsoslowlythatitwasn'tuntil10:30thatitgotthere.Inspiteofourlatearrival,JoandecidedthatshewouldgotoseetheCrownJewelsintheTowerofLondonwhilewewentshopping.Itwasonlyafterhersisterhaddisappearedintothefogthatmywiferealizedthatwehadn’tdecidedwhereweshouldmeetherforlunch.SinceIhadourthreeticketsfortheconcertinmypocket,thiswasindeedaproblem.ThereseemedtobenothingwecoulddoexcepttakeataxitotheTowerofLondon,andtrytofindherthere.Needlesstosay,wedidn’tfindher.Itwasnowoneo’clock,andtheconcertbeganat2:30.“Perhapsshewillthinkofwaitingoutsidetheconcerthall,”suggestedmywifehopefully.Bythistimethefogwassothickthatroadtraffichadtostop,andtheonlywaytogettherewasbyundergroundrailway.Handinhandwefeltourwayalongtheroadtowherewethoughttheneareststationshouldbe.Anhourlaterwewerestilltryingtofindit.JustasIwasabouttolosemytempercompletelywemetablindmantappinghiswayconfidentlythroughthefog.WithhishelpwefoundTowerHilltubestationjustfiftyyardsdowntheroad.Bynowitwasfartoolateeventotrytogettotheconcerthallbeforetheperformancebeganat2:30,sowedecidedtoreturntoCambridge.Ittooksevenlonghoursinsteadoftheusualtwotomakethatjourney.Norwereweabletogetanyfoodanddrinkonthetrain.Tiredandhungrywefinallyreachedhomeatten,openingthedoortothesoundofthetelephonebell.ItwasJoan~shehadseentheCrownJewels,hadmanagedtogetanotherticketfortheconcert,andhadhadawonderfuldinneratarestaurantnearthehotelwhereshehaddecidedtostaythenight.Nowshewasringingtodiscoverwhetherwehadhadanequallysuccessfulday.6.WhywasJoanseparatedfromhersisterandbrother-in-lawwhentheyarrivedinLondon?A.Theycouldnotseeeachotherbecauseofthefog.B.JoanhadnotseentheCrownJewels.C.Theyplannedtododifferentthingsuntillunchtime.D.Thewriterdidnotwanttogototheconcert.7.Whatdidthewriterplantodointheafternoon?A.Gotoaconcert.B.SeetheCrownJewels.C.ReturntoCambridge.D.Wearenottold.8.Whydidn’ttheyallmeetforlunch?A.Theylosttheirwayinthefog.B.Theyforgottomakethenecessaryarrangement.C.Theyhadagreedtomeetoutsidetheconcerthall.D.Thewritercouldn'tfindtheundergroundstation.9.Whydidthewriterandhiswifedec