unitweretryingtosavetheearth!单元检测题及答案

Unit13单元检测题I.单项选择Thereis_______“u”and_______“s”intheword“use”.A.a;an B.an;anC.a;aD.an;aMr.Wangisverystrict_______hisson.Andheisverystrict_______everythinghedoes.A.with;withB.in;inC.with;inD.in;with3.Mr.Greenteaches_______computerscience.A.we B.us C.oursD.our4.It_______Mr.Greenanhourtofixuphisbicycleyesterday.A.costB.paidC.spentD.took5.It’ssaidthatpetrol(石油)________inlessthan100years.Soweshouldtrytowalkmoreinsteadofdrivingcars.A.usedfor B.willbeusedupC.usedup D.willbeusedfor6.Pleasethelightswhenyougoout.A.turnup B.turndownC.turnoff D.turnon7.Hedoesn’tdohishomework_______.Sohealwaysmakessomemistakes.A.carefulenoughB.enoughcareful C.carefullyenoughD.enoughcarefully8.Ihavetriedseveraljackets,but_______ofthemfitsmewell.A.allB.both C.noneD.neither10.Myfather_______toBeijingonbusiness.Hewillbebackhomeintenminutes.A.hasbeenB.hasgoneC.willgoD.goesII．完形填空Thenexttimeyousitdowntoadeliciousdinner,askyourself,“HowmuchfoodwillIbeabletoeat?”1__youthinkaboutonlytakingasmuchfoodasyoucan,itwillhelpcutdownonwaste.Everyday,alargeamountoffoodgoesuneatenand2inthegarbage.It’sverysadtothinkofthosepeoplewhocannoteven3tohaveonemealeveryday.Theproblemofwastehappensallovertheworld.__4,therearemanythingsthatwecandotohelpcutdownongarbageandwaste.Themost5thingtorememberistobefriendlytotheenvironment.Onlytakeasmuchfoodasyoucaneat,buythingsinenvironmentallyfriendlypackagingsuchaspaperorcardboard,and6garbageinitsproperplace.Ifeverypersoncouldcutdownonwaste,evenjustalittle,the7wouldbegreat.Garbageandwastecanbeabigproblemin8__cities.Ifgarbageorfoodisleftinthestreets,itcanmakethecitydirtyandmayalsoleadtoabadsmellinthestreets.Weallneedtoberesponsible（有责任的）forthis__7andmakethecitymorepleasant.It’simpossibletogetridofwastecompletely,butwecan__10reduceit.Nooneisperfect,butifwepaymoreattentiontotheeffectourwastehasontheenvironment,wecanworktogethertocontroltheproblem.1.A.Though B.Until C.If D.Before2.A.endsup B.breaksdown C.turnsout D.goesoff3.A.wait B.afford C.helpD.stop4.A.Or B.And C.So D.However5.A.importantB.usefulC.interesting D.helpful6.A.sell B.make C.leave D.throw7.A.result B.effect C.reason D.environment8.A.young B.beautifulC.cleanD.large9.A.city B.job C.accidentD.problem10.A.greatlyB.quicklyC.quietlyD.carefullyIII．阅读理解AWhydoplantsgrowinsomeplacesandnotinothers?Whydoessomelandhavesomuchgrowingonit,whileotherlandhasalmostnoplantsgrowingonitatall?Togrow,plantsneedseveralthings.Oneiswarmth.Inverycoldplacesalmostnothinggrows.Plantsalsoneedwater.Inverydrypartsoftheearthonlyafewunusualplantscangrow.That’swhydrydesertseverywherearealmostnotcoveredbytreesorgrass.Plantsmustalsohaveaplaceinwhichtoputdowntheirrootsandgrow.Theyfinditdifficulttogrowonhardland.Thetownisbuiltonhardland.Theplantsherehaveonlythesoilfoundbetweenthecracksofthestonestogrowin.Anotherthingplantsmusthavebeforetheycangrowisfood.Whatwillhappenifwetrytomakethingsgrowonthesandybeach?Afewplants,suchasbeachgrass,willgrowinsand,butmostplantswon’t.Eveniftheweatheriswarmenoughandwewatertheplantseachday,manyofthemwilldiebecausethesandonthisbeachhasalmostnofoodforplants.1.Accordingtothepassage,plantsneed______thingstogrowwell.A.twoB.threeC.fourD.five2.Whatdoestheunderlinedword“cracks”meaninthetext?A.缝隙B.表面C.夹层D.底部3.Fromthepassage,wecanknowitis_______forplantstogrowindryplaces.A.easyB.difficultC.impossibleD.important4.Thereasonwhymostplantscan’tgrowonthesandybeachisthat______.A.thereisn’tenoughsunlightB.thereistoomuchwaterC.itistoocrowdedthereD.ithaslittlefoodforplants5.Thepassagecanmostprobablybefoundina______book.A.scienceB.historyC.travelD.mathBLakeVictoriaisthelargestlakeinAfrica.Itisthesecondlargestlakeintheworld,too.Itisanimportantlakebecauseitisoneofthesourcesforthelongestriverintheworld,theNileRiver.LakeVictoriaprovidesasourceofwater,food,andpowerforseveralAfricancountries.LakeVictoriaisabigpartofAfricanlife.Unfortunately,LakeVictoriahasaproblem.Itisshrinking.ThereareseveralpowerstationsatLakeVictoriainUganda.TheseareontheNileRiver,andbesidesproducingpower,theykeepthewaterofthelakeatacertainlevel.Forthepastfortyyears,thatlevelhasbeenmeters.Overthelastseveralyears,thewaterlevelhasdroppedbyaboutmeters.Thereseemstobeseveralreasonsforthisdrop.Onepossiblereasonisdrought.Droughthasbeenverybadintheareasince2000.LakeVictoriagetsallofitswaterfromrain,sothedroughtmeanslesswaterinthelake.However,someenvironmentalistsbelievethattherealproblemisthepowerfactoriesonLakeVictoria.Ugandadependsonthosepowerplantsformostofitspower,andtheymadethepowerplantslargerin2000.ManypeoplebelievethepowerplantshavebeentakingtoomuchwateroffLakeVictoria.Asaresult,theyhavebeenaskedtouselesswateruntilLakeVictoriagoesbacktoitsoldlevel.Whetherthelowwaterleveliscausedbydroughtorpowerplants,theresultisthesame.ThisisalreadyapoorareaofAfrica,wheremanypeopleliveareallyhardlife.People,animalsandplantsaroundLakeVictoriawillsufferevenmorefromthelowwaterlevelonthelake.ManypeopleneedLakeVictoriaforfishingorgrowingfood.Fishneedthewatertolive,andanimalsneeditforwater.Plantsaroundthelakewilldiewithoutthewater,andthenmoreanimalsandpeoplewillsuffer.Unlessthelakefillssoon,manypeoplewillsufferanddie.1.LakeVictoriais________.A.theonlysourcefortheNileRiverB.thelargestlakeintheworldC.thesourceofwater,foodandpowerforAmericaD.animportantlakeinAfrica2.“Itisshrinking.”mostprobablymeans______.A.“Itisbecominglarger”B.“Itisbecomingmorebeautiful”C.“Itisbecomingsmaller”D.“Itisbecomingmoreuseful”3.Accordingtothepassage,theTRUEstatementis________.A.rainwaterisoneofthesourcesforthelakeB.therehasbeenmuchraininthelakeareasince2000C.thepowerfactoriesinUgandadon’tprovidewaterforthelakeDthepowerfactoriesinUgandaweremadesmallerin2000Accordingtothepassage,thewaytosolvetheproblemsaroundLakeVictoriais________.A.peoplemustbuildmorepowerfactoriesB.moresourcesofwatermustbefoundC.everycountryshouldoffersomemoneytoAfricaD.allthepeoplelivingintheareashouldmovetoanotherplaceIV.用方框内所给单词的适当形式填空happy,close,angry,parent,listen,make,if,long,but,importantAreyoutheonlychildinthefamily?Ifso,youarethemost1.inyourfamily.2.aretheclosestpeopletoyouintheworld.Butalotofmiddleschoolstudentshaveaproblem.Theyfeelthey'renotas3.totheirparentsasbefore.Theyeventhinktheirparentsareunfairtothem.Somestudentscomplainthattheirparentssayalottothem,butnever4.tothem.Someofthemevensayit5..“Myparentsdon'tallowmetoplaycomputergames,6.otherclassmatesaredoingthat.”Otherssay,whenthey're7.phonecallstofriends,theirparentsliketoaskifthey'respeakingtoaboyoragirl.Thesemakethemvery8..Somestudentsevendecidetoleavehome.Buttheydon'tknowrunningawaymaybringthemsomemoreproblems.Showyourparentsyou'regrowingup.Thenthey'llfeelyou'reno9.asmallchild.10.youfollowtheadvice,you'llhaveahappylifeandneverthinkofrunningaway.=5\*ROMANV.短文填词：根据短文内容及首字母提示，填写所缺单词，使短文意思完整。Inmanybigcitiesintheworld,theoveruseofcarsisthoughttobeoneofthemajorcausesofairpollution.Whatwillcarsbe1.l__________inthefuture?Some2.e__________thinkthattoday’scarsareintroublebecausetheyusetoomuchpetrol(汽油).Theysaythecarofthefuturewillbemuch,muchsmaller.Thecaroftomorrowwillbe3.m_________withoutamotororairconditioning.It’llhavenoradiosandlights.Thetomorrow’scarwillbean4.o_________aircarwithnodoorsorwindows.Itneedn’thaveapollutioncontrolsystembecauseit5.w__________usepetrol.Infact,thisnewcarwillbepushedbythedriver’sfeet.Veryfewpeoplewillbekilledinaccidents,becausethetop6.s_________willbefivemilesperhour.However,wearealsowarnednottoaskforpretty7.c_________,becausethecarswill