Unit1 Water语法知识考点精练（含答案）沪教版（五四学制）八年级英语上册

沪教版（五四学制）八年级英语上册Unit1Water语法知识考点精练一、选出不同类的一项（5分）()1.A.pollute B.recycle C.purity()2.A.ocean B.glacier C.liquid()3.A.frozen B.melted C.pour()4.A.chemical B.conservation C.dissolve()5.A.evaporate B.condense C.existence二、单项选择题（共15分）Bythetimewearrivedatthereservoir,theworkers______thewaterfor3hours.A.havetested B.hadbeentesting C.aretesting D.willtestIwonder______thewatercycletakestocompleteinthisregion.A.howlong B.howsoon C.howoften D.howfarThescientistsaidthatwater______at100℃understandardpressure.A.boils B.boiled C.willboil D.isboilingBynextmonth,we______thenewwater-savingsystemforawholeyear.A.willinstall B.willhaveinstalled C.haveinstalledD.areinstallingCouldyoutellme______thepollutedwaterfromthefactoryisbeingtreated?A.what B.when C.that D.whoThevillagers______againstthewaterpollutionsincethechemicalplantwasbuilt.A.havebeenfighting B.fight C.fought D.willfightHeaskedifwe______theimportanceofprotectinggroundwaterresourcesbefore.A.realize B.realized C.haverealized D.hadrealizedBytheendoflastyear,thegovernment______20newwatertreatmentplantsinthisarea.A.builds B.built C.hasbuilt D.hadbuiltDoyouknow______percentageoftheearth'ssurfaceiscoveredbysaltwater?A.which B.what C.whose D.howTheteachertoldusthatwater______intovaporwhenheated.A.turns B.turned C.willturn D.isturningBythetimeyoufinishthisexperiment,you______howwaterchangesitsstate.A.willunderstand B.willhaveunderstoodC.understand D.haveunderstoodIdon'tknow______theundergroundwaterhasbeenpollutedbypesticides.A.that B.if C.what D.whoTheworkers______thedamagedwaterpipefortwohourswhentheengineerarrived.A.repair B.repaired C.haverepaired D.hadbeenrepairingCouldyouexplain______wecanpurifywaterusingnaturalmaterials?A.when B.how C.where D.whyBy2030,scientists______anewmethodtodesalinateseawatermoreefficiently.A.willdevelop B.willhavedevelopedC.develop D.aredeveloping三、用括号里单词的正确形式填空（共10分）Bytheendoflastmonth,we______(save)over500tonsofwaterthroughrecycling.Iwanttoknowiftheriver______(become)cleanerbynextspring.Theprofessorsaidthatice______(float)onwaterbecauseofitslowerdensity.Doyouknowhowmuchwater______(waste)inthiscityeveryday?Bythetimethelecturebegins,we______(prepare)allthematerialsaboutthewatercycle."We______(complete)thereservoirconstructionbynextJune,"theengineersaid.Hesaidthatthey______(complete)thereservoirconstructionbythenextJune.Iwonder______(how)thewatertreatmentprocessworksindetail.Theteacheraskedifwe______(learn)aboutthethreestatesofwaterbeforethelesson.Water______(notexist)onthemoon,accordingtothelatestresearch.Bythetimeyoureadthisreport,I______(collect)enoughdataonwaterusage.四、按要求改写句子（共20分）"Wehavebeenmonitoringthewaterlevelforaweek,"thehydrologistsaid.（改为间接引语）Thehydrologistsaidthatthey__________________thewaterlevelforaweek.Doeswaterfreezeat0℃?Thelittleboyaskedhisfather.（合并为宾语从句）Thelittleboyaskedhisfather______water______at0℃.Theworkershadbeencleaningthecanalfor5dayswhentherainstarted.（对划线部分提问）__________________theworkersbeencleaningthecanalwhentherainstarted?"Iwillhavefinishedthewateranalysisbytomorrow,"thechemistsaid.（改为间接引语）Thechemistsaidthathe__________________thewateranalysisbythenextday.Wheredoesthegroundwatercomefrom?Thegeologistwantstoknow.（合并为宾语从句）Thegeologistwantstoknow______thegroundwater____________.Bytheendofnextyear,thecompanywillhavereducedwaterconsumptionby30%.（改为一般疑问句）______thecompany____________waterconsumptionby30%bytheendofnextyear?"Wearegoingtostartthedesalinationprojectnextmonth,"themanagersaid.（改为间接引语）Themanagersaidthatthey_______________startthedesalinationprojectthenextmonth.Howcanwereusewastewaterindailylife?Theenvironmentalistisexplaining.（合并为宾语从句）Theenvironmentalistisexplaining__________________reusewastewaterindailylife.Thestudentshavebeendoingexperimentsonwaterpollutionfortwoweeks.（对划线部分提问）__________________thestudentsbeendoingexperimentsonwaterpollution?"Ihaveneverdrunksuchcleanspringwaterbefore,"shesaid.（改为间接引语）Shesaidthatshe______never______suchcleanspringwaterbefore.五、连词成句（共10分）water,cycle,how,does,work,exactly(?)by,plants,used,be,can,water,recycled,agricultural(.)percentage,fresh,what,of,the,is,water,earth's,on(?)we,before,had,water,the,tested,drinking,it,all(.)for,have,resources,been,conserving,they,water,decades(.)六、完形填空（共10小题，每小题2分，计20分）Waterisessentialforlife,andunderstandingitspropertiesiscrucial.Forcenturies,scientists1themysteriesofwater.Bythe18thcentury,they2thatwateriscomposedofhydrogenandoxygen.Weoftenwonder3muchwaterisavailableforhumanuse.Infact,onlyabout3%oftheearth'swaterisfresh,andmostofit4inglaciers.Bythetimewerealizetheimportanceofsavingwater,we5alotofit.Scientistssaythatifwe6wastingwaternow,there7severeshortagesinthefuture.Theyhavebeenwarningusaboutthisforyears.Bylastyear,globalwaterusage8by50%comparedtotwodecadesago.Doyouknow9thewateryoudrinkcomesfrom?Itmighthavetraveledthroughrivers,lakes,orundergroundlayers.Bythetimeitreachesyourtap,it10throughvariouspurificationprocesses.()1.A.study B.havestudied C.havebeenstudying D.willstudy()2.A.discover B.discovered C.haddiscovered D.willdiscover()3.A.how B.what C.which D.whose()4.A.istrapped B.wastrapped C.willbetrapped D.hasbeentrapped()5.A.waste B.willwaste C.willhavewasted D.wasted()6.A.don'tstop B.didn'tstop C.won'tstop D.haven'tstopped()7.A.are B.willbe C.were D.havebeen()8.A.increases B.increased C.hasincreased D.hadincreased()9.A.when B.where C.why D.how()10.A.goes B.went C.willgo D.hasgone七、阅读理解（共10分）（一）Thewatercycleisacontinuousprocessthathasbeenoperatingforbillionsofyears.Bythetimerainfallsontheground,ithasalreadygonethroughseveralstages.First,waterevaporatesfromoceans,lakes,andrivers.Thisprocessisdrivenbythesun'senergy.Bythetimethewatervaporreachestheatmosphere,itbeginstocondenseintoclouds.Meteorologistshavebeenstudyingthewatercycletopredictweatherpatterns.Theyuseadvancedtechnologytotrackhowwatermovesthroughtheatmosphere.Bylastyear,theyhaddevelopedmodelsthatcouldforecastrainfallwith70%accuracy.Scientistswonderhowclimatechangeisaffectingthewatercycle.Theyhavefoundthatrisingtemperaturesarecausingmoreevaporation,whichleadstomoreintenserainfallinsomeareas.By2050,theypredictthatthewatercyclewillacceleratesignificantly.()1.Howlonghasthewatercyclebeenoperating?A.Formillionsofyears. B.Forbillionsofyears.C.Forthousandsofyears. D.Forhundredsofyears.()2.Whatdrivestheevaporationprocessinthewatercycle?A.Windenergy. B.Geothermalenergy.C.Thesun'senergy. D.Electricalenergy.()3.Bylastyear,whatcouldmeteorologists'modelsdo?A.Controlrainfall. B.Stopevaporation.C.Forecastrainfallwith70%accuracy.D.Changethewatercycle.()4.Whatdoscientistswonderaboutclimatechange?A.Howitisaffectingthewatercycle. B.Whenitwillstop.C.Whereitismostsevere. D.Whyitishappening.()5.Whatdoscientistspredictby2050?A.Thewatercyclewillstop. B.Thewatercyclewillslowdown.C.Thewatercyclewillacceleratesignificantly.D.Thewatercyclewillremainthesame.（二）Groundwaterisanimportantsourceoffreshwater.Bythetimewepumpitoutoftheground,ithasbeenfilteredthroughlayersofsoilandrock.Thisnaturalfiltrationprocessremovesmanyimpurities.Hydrologistshavebeenmonitoringgroundwaterlevelsfordecades.Theyhavefoundthatinmanyregions,groundwaterisbeingextractedfasterthanitcanbereplenished.By2030,someareasmayfaceseveregroundwaterdepletion.Farmersoftenrelyongroundwaterforirrigation.Theywonderiftherewillbeenoughwaterforfuturecrops.Agriculturalexpertssuggestthatbyusingdripirrigationsystems,farmerscanreducewaterusagebyupto50%.Bylastseason,over10,000farmershadadoptedthistechnology.()1.Whatisgroundwaterfilteredthroughbeforewepumpitout?A.Machines. B.Chemicals.C.Layersofsoilandrock. D.Plants.()2.Whathavehydrologistsfoundaboutgroundwaterinmanyregions?A.Itisbeingreplenishedtooquickly.B.Itisbeingextractedfasterthanitcanbereplenished.C.Itisnotbeingusedenough.D.Itisbecominglesspure.()3.Whenmaysomeareasfaceseveregroundwaterdepletion?A.By2020. B.By2030. C.By2040. D.By2050.()4.Howmuchcanfarmersreducewaterusagebyusingdripirrigationsystems?A.Upto30%. B.Upto40%. C.Upto50%. D.Upto60%.()5.Howmanyfarmershadadopteddripirrigationtechnologybylastseason?A.Over1,000. B.Over5,000. C.Over10,000.D.Over20,000.八、句子改错（10分）Bythetimewegottotheriver,thepollutionalreadydestroyedtheecosystem.（）________Theteachertoldusthatwaterwillfreezeat0℃.（）________Howlonghavetheybeenstartthewaterconservationproject?（）________Iwonderwhenwillthenextphaseofthewatertreatmentbegin.（）________Bynextyear,wewillbebuiltanewreservoirinthisarea.（）________Heaskedifwehavelearnedaboutthewatercyclebefore.（）________Thewaterinthislakehasbeenbecomingpollutedsincethreeyears.（）________Doyouknowwhatpercentageoftheworld'swateraresaltwater?（）________Bylastmonth,thecompanyhasreducedwaterconsumptionby20%.（）________Thescientistsaidthattheearth'swatercycleischangingforcenturies.（）________参考答案一、选出不同类的一项C（A、B为动词，C为名词）C（A、B为具体水体形式，C为物质状态）C（A、B为形容词，C为动词）C（A、B为名词，C为动词）C（A、B为动词，C为名词）二、单项选择题1-5BAABB6-10ADDBA11-15BBDBB三、用括号里单词的正确形式填空hadsavedwillhavebecomefloatsiswastedwillhavepreparedwillcomplete；wouldcompletehowhadlearneddoesn'texistwillhavecollected四、按要求改写句子hadbeenmonitoringif/whether；freezesHowlonghadwouldhavefinishedwhere；comesfromWill；havereducedwe