大学英语四六级训练资料教师版.docx
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大学英语四六级训练资料教师版.docx
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大学英语四六级训练资料教师版
CET4/6考前综合训练资料
目录
一、套题演练PP1-8
KeysPP72-79
二、专项训练PP9-63
阅读专项训练PP9-25
KeysPP80-86
听力专项训练PP26-37
训练1PP26-28,KeysPP87-90
训练2PP39-31,KeysPP90-93
训练3PP32-34,KeysPP93-97
训练4PP35-37,KeysPP97-100
写作专项训练PP38-45
KeysPP101-108
完形填空专项训练PP46-59
KeysPP108-115
翻译专项训练PP60-63
KeysPP115
三、综合串讲材料PP64-71
KeysPP116-126
一、套题演练
大学英语四六级综合训练试题
PartIWriting(30minutes)
Directions:
Forthispart,youareallowed30minutestowriteashortessayonthetopic“CollegeStudentsLearningBudgeting”.Youshouldwriteatleast120wordsfollowingtheoutlinegivenbelowinChinese:
1.大学生经常生活费不够用;
2.造成这一现象的原因;
3.学会理财很重要,大学生应该
CollegeStudentsLearningBudgeting
PartIIReadingComprehension(SkimmingandScanning)(15minutes)
Directions:
Inthispart,youwillhave15minutestogooverthepassagequicklyandanswerthequestionsonAnswerSheet1.
Forquestions1-7,mark
Y(forYES)ifthestatementagreeswiththeinformationgiveninthepassage;
N(forNO)ifthestatementcontradictstheinformationgiveninthepassage;
NG(forNOTGIVEN)iftheinformationisnotgiveninthepassage.
Forquestions8-10,completethesentenceswiththeinformationgiveninthepassage.
WillWeRunOutofWater?
Picturea“ghostship”sinkingintothesand,lefttorotondrylandbyarecedingsea.Thenimagineduststormssweepinguptoxicpesticidesandchemicalfertilizersfromthedryseabedandspewingthemacrosstownsandvillages.
Seemlikeascenefromamovieabouttheendoftheworld?
ForpeoplelivingneartheAralSeainCentralAsia,it’salltooreal.Thirtyyearsago,governmentplannersdivertedtheriversthatflowintotheseainordertoirrigate(providewaterfor)farmland.Asaresult,theseahasshrunktohalfitsoriginalsize,strandingshipsondryland.Theseawaterhastripledinsaltcontentandbecomepolluted,killingall24nativespeciesoffish.
Similarlarge-scaleeffortstoredirectwaterinotherpartsoftheworldhavealsoendedinecologicalcrisis,accordingtonumerousenvironmentalgroups.Butmanycountriescontinuetobuildmassivedamsandirrigationsystems,eventhoughsuchprojectscancreatemoreproblemsthantheyfix.Why?
Peopleinmanypartsoftheworldaredesperateforwater,andmorepeoplewillneedmorewaterinthenextcentury.
“Growingpopulationswillworsenproblemswithwater,”saysPeterH.Gleick,anenvironmentalscientistatthePacificInstituteforstudiesinDevelopment,Environment,andSecurity,aresearchorganizationinCalifornia.Hefearsthatbytheyear2025,asmanyasonethirdoftheworld’sprojected8.3billionpeoplewillsufferfromwatershortages.
WhereWaterGoes
Only2.5percentofallwateronEarthisfreshwater,watersuitablefordrinkingandgrowingfood,saysSandraPostel,directoroftheGlobalWaterPolicyProjectinAmherst,Mass.Twothirdsofthisfreshwaterislockedinglaciersandicecaps.Infact,onlyatinypercentageoffreshwaterispartofthewatercycle,inwhichwaterevaporatesandrisesintotheatmosphere,thencondensesandfallsbacktoEarthasprecipitation(rainorsnow).
Someprecipitationrunsofflandtolakesandoceans,andsomebecomesgroundwater,waterthatseepsintotheearth.MuchofthisrenewablefreshwaterendsupinremoteplacesliketheAmazonriverbasininBrazil,wherefewpeoplelive.Infact,theworld’spopulationhasaccesstoonly12,500cubickilometersoffreshwater—abouttheamountofwaterinLakeSuperior.Andpeopleusehalfofthisamountalready.“Ifwaterdemandcontinuestoclimbrapidly,”saysPostel,“therewillbesevereshortagesanddamagetotheaquaticenvironment.”
ClosetoHome
WaterwoesmayseemremotetopeoplelivinginrichcountriesliketheUnitedStates.ButAmericanscouldfaceseriouswatershortages,tooespeciallyinareasthatrelyongroundwater.Groundwateraccumulatesinaquifers,layersofsandandgravelthatliebetweensoilandbedrock.(Foreveryliterofsurfacewater,morethan90litersarehiddenunderground.)AlthoughtheUnitedStateshaslargeaquifers,farmers,ranchers,andcitiesaretappingmanyofthemforwaterfasterthannaturecanreplenishit.InnorthwestTexas,forexample,overpumpinghasshrunkgroundwatersuppliesby25percent,accordingtoPostel.
Americansmayfaceevenmoreurgentproblemsfrompollution.DrinkingwaterintheUnitedStatesisgenerallysafeandmeetshighstandards.Nevertheless,oneinfiveAmericanseverydayunknowinglydrinkstapwatercontaminatedwithbacteriaandchemicalwastes,accordingtotheEnvironmentalProtectionAgency.InMilwaukee,400,000peoplefellillin1993afterdrinkingtapwatertaintedwithcryptosporidium,amicrobethatcausesfever,diarrheaandvomiting.
TheSource
Wheredocontaminantscomefrom?
Indevelopingcountries,peopledumprawsewageintothesamestreamsandriversfromwhichtheydrawwaterfordrinkingandcooking;about250millionpeopleayeargetsickfromwaterbornediseases.
Indevelopedcountries,manufacturersuse100,000chemicalcompoundstomakeawiderangeofproducts.Toxicchemicalspollutewaterwhenreleaseduntreatedintoriversandlakes.(Certaincompounds,suchaspolychlorinatedbiphenyls,orPCBs,havebeenbannedintheUnitedStates.)
Butalmosteveryonecontributestowaterpollution.Peopleoftenpourhouseholdcleaners,carantifreeze,andpaintthinnersdownthedrain;allofthesecontainhazardouschemicals.ScientistsstudyingwaterintheSanFranciscoBayreportedin1996that70percentofthepollutantscouldbetracedtohouseholdwaste.
Farmershavebeencriticizedforoverusingherbicidesandpesticides,chemicalsthatkillweedsandinsectsbutthatpollutewateraswell.Farmersalsousenitrates,nitrogen-richfertilizerthathelpplantsgrowbutthatcanwreakhavocontheenvironment.Nitratesaresweptawaybysurfacerunofftolakesandseas.Toomanynitrates“overenrich”thesebodiesofwater,encouragingthebuildupofalgae,ormicroscopicplantsthatliveonthesurfaceofthewater.Algaedeprivethewaterofoxygenthatfishneedtosurvive,attimeschokingofflifeinanentirebodyofwater.
What’stheSolution?
WaterexpertGleickadvocatesconservationandlocalsolutionstowater-relatedproblems;governments,forinstance,wouldbebetteroffbuildingsmall-scaledamsratherthanhugeanddisruptiveprojectsliketheonethatruinedtheAralSea.
“Morethan1billionpeopleworldwidedon’thaveaccesstobasiccleandrinkingwater,”saysGleick.“Therehastobeastrongpushonthepartofeveryone—governmentsandordinarypeople—tomakesurewehavearesourcesofundamentaltolife.”
1.ThatthehugewaterprojectshavedivertedtheriverscausestheAralSeatoshrink.
2.Theconstructionofmassivedamsandirrigationprojectsdoesmoregoodthanharm.
3.Thechiefcausesofwatershortagearepopulationgrowthandwaterpollution.
4.TheproblemsAmericansfaceconcerningwateraregroundwatershrinkageandtapwaterpollution.
5.Accordingtothepassageallwaterpollutantscomefromhouseholdwaste.
6.ThepeoplelivingintheUnitedStateswillnotbefacedwithwatershortages.
7.WaterexpertGleickhascomeupwiththebestsolutiontowater-relatedproblems.
8.AccordingtoPeterH.Gleick,bytheyear2025,asmanyas________oftheworld’speoplewillsufferfromwatershortages.
9.TwothirdsofthefreshwateronEarthislockedin________.
10.Indevelopedcountries,beforetoxicchemicalsarereleasedintoriversandlakes,theyshouldbetreated______inordertoavoid.
PartIIIListeningComprehension(35minutes)
SectionA
Directions:
Inthissection,youwillhear8shortconversationsand2longconversations.Attheendofeachconversation,oneormorequestionswillbeaskedaboutwhatwassaid.Boththeconversationandthequestionswillbespokenonlyonce.Aftereachquestiontherewillbeapause.Duringthepause,youmustreadthefourchoicesmarked[A],[B],[C]and[D],anddecidewhichisthebestanswer.ThenmarkthecorrespondingletteronAnswerSheet2withasinglelinethroughthecentre.
11.[A]Themanisoutofshape.
[B]Themandoesn’tneedanewracket.
[C]Themanalsoneedsnewtennisshoes.
[D]Themanspenttoomuchonhistennisshoes.
12.[A]Shepreferschemistry.
[B]Shehasn’tgotapartneryet.
[C]Sheistootiredofchemistry.
[D]Sheistoobusytoworkonherchemistry.
13.[A]Customerandwaitress.
[B]Teacherandstudent.
[C]Bossandsecretary.
[D]Lawyerandclient.
14.[A]Hewassatisfiedwiththeserviceontheship.
[B]Itwasthefirsttimehehadbeenabroad.
[C]Hehadneverbeenonawarship.
[D]Hehasbeenonthewarshipbefore.
15.[A]Heisconfident.
[B]Heisworried.
[C]Heisbored.
[D]Heisangry.
16.[A]Thewomanofferedtohelpthemanfindhisbox.
[B]Themandoesn’tknowwheretogo.
[C]Thewomanwillbuytheman’slunchforhim.
[D]Thewomanwillgivethemanatreatment.
17.[A]It’senjoyable.
[B]It’sterrific.
[C]It’stoomodern.
[D]It’sold-fashioned.
18.[A]Nearthestairs.
[B]Ontheplatfomp3.
[C]Attheticketoffice.
[D]Attheinfomp3ationdesk.
Questions19to21arebasedontheconversationyouhavejustheard.
19.[A]Inacollegebookstore.
[B]Inalecturehall.
[C]Inalibrary.
[D]Inadormitory.
20.[A]English.
[B]Biology.
[C]IntroductiontoEnglishLiterature.
[D]Arequiredcourse.
21.[A]Helivesonthe10thfloorofButlerHall.
[B]Heneverwantstolistentostudents.
[C]Heusedtoteachbiology.
[D]Heisanexcellentprofessor.
Questions22to25arebasedontheconversationyouhavejustheard.
22.
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