高中英语语法专练 第十三章 as的常见用法

第十三章as的常见用法i.as作连词引导时间状语从句,表示“当...的时候"主句的动作与从句的动作交替进行。意义为“一边……一边……”主句的动作发生在从句的动作进行的过程中。意为“...的时候”。主、从句两个短动作同时发生。意为“就在这时”。4.后面接名词时,表示在名词表示的时间段中。5.主句的动作与从句的动作相伴发生,意为“随着....。”专项练习()1.Aslthenewspaper,Grannyasleep.read;wasfallingB.wasreading;fellC.wasreading;wasfallingD.read;fell()2.MotherwasworriedbecauselittleAlicewasill,especiallyfatherwasawayinFrance.forB.asC.since.D.during()3.Iwasgoingout,thetelephonerang.SinceB.WhileC.AsD.Once()4.IreadtheletterIwalkedalongtheriver.A.sinceB.forC.asD.when()5.thewealthofthecountryincreases,moreandmorewastewillbeproduced.AsB.WhenC.SinceD.While()6.-l'mgoingtothepostoffice.-you'rethere,canyougetmesomestamps?AsB.WhileC.BecauseD.If()7.thedaywenton,theweathergotworse.A.WithB.SinceC.WhileD.Asii.as作连词引导原因状语从句时与because的区别1.一般说来,as表示听者已经知道的原因,因而常常位于句首;而because表示听者未知的原因，因而常常位于句尾,成为信息的焦点。2.as从句不能回答why提出的问题，而because从句可以回答why提出的问题。3.as从句不能在强调句型中作为被强调的部分，而because从句能在强调句型中成为被强调的部分。专项练习()1.Iamill,Ican'tgo.A.AsB.SinceC.BecauseD.For()2.Sheliedtousshehadtoinordertogetajob,asB.sinceC.becauseD.for()3.theweatherwasfine,wedecidedtowalktotherestaurant.AsB.SinceC.BecauseD.For()4.Itwashemissedthebusthathecamelate.asB.becauseC.forD.since()5.-Whydidyouchangeyourmind?-Ifoundtheplanwasunreasonable.A.ASB.ForC.sinceD.Becauseiii.as作连词引导方式状语从句和让步状语从句1.as作连词引导方式状语从句，表示“依照，按照，像,正如”。2.as作连词引导让步状语从句,表示“尽管,虽然”。3.as引导让步状语从句常用倒装语序,将表语、状语、谓语提前。1)形容词/副词十as+主语+连系动词be或实意动词。2)名词+as+主语+连系动词be。3)当表语是单数名词前置时,省略冠词;单数名词前有形容词修饰时,冠词不能省略。4)实意动词十as+主语+助动词/情态动词。专项练习()1.Heworksengineer.A.likeB.asC.thesameasD.asan()2.Theyareallowedtodomanygames,running,jumping,wrestling,swimmingshootingandsoon.soB.likeC.asD.BorC()3.Youngheis,heknowsalot.asB.forC.althoughD.despite()4.,hestillfoundhiswaytomyhome.AswasthenightdarkB.AsthenightwasdarkC.DarkaswasthenightD.Darkasthenightwas()5.theystillworkedontheirexperiments.AstheCuriesweretiredandhungryTiredandhungryasweretheCuriesC.TiredandhungryastheCurieswereD.ThoughtiredandhungrytheCurieswere()6.,heneverseemsabletodotheworkbeautifully.A.TryashedoesB.AshetriesC.TryasdoesheD.Ashedoestry()7.,thefootballgamehadbeendecidednottobeputoff.HeavilyasdiditrainB.AsitrainedheavilyC.HeavilyasitrainedD.Asheavilyasitrain()8.,Ihaveneverseenanyonewho'sascapableasJohn.AslongasIhavetraveledB.NowthatIhavetraveledsomuchC.MuchasIhavetraveledD.AsIhavetraveledsomuch()9.__,hetalksalotabouthisfavoritesingersafterclass.AquietstudentashemaybeB.QuietstudentashemaybeC.BeaquietstudentashemayD.Quietashemaybeastudent()10.Tiredtheywere,theywenttobedassoonastheycameback,A.becauseB.asC.sinceD.foriv.as作连词引导比较状语从句1.后面接名词或代词。2.后面接从句。3.后面接状语结构。4.“数词十times+as"表示倍数。专项练习()1.Afterthenewtechniquewasintroduced,thefactoryproducedtractorsin1998astheyearbefore.astwicemanyB.asmanytwiceC.twiceasmanyD.twicemanyas()2.Itisgenerallybelievedthatteachingisitisascience.anartmuchasB.muchasartasC.asanartmuchasD.asmuchanartas()3.Asmanymemberswerepresentagreedtotheplan.whoB.thatC.whichD.as()4.Therewereasmanyticketsavailablewereaskedfor.thatB.asC.whichD.what()5.TomisIam.astallasB.sotallasC.astallerasD.ashighas()6.Johnbehavesaspolitely.A.asBobisB.asBobdoesC.medoD.Iamv.as用于固定短语中1.asif/though意为“好像....”1)引导方式状语从句,当与事实不符合时,从句用虚拟语气。当主句主语与从句主语一致,且从句谓语含有be,可省去从句的主语和be。2)引导表语从句。2.as/solongas意为“只要....”。3.as/sofaras意为“就....而论”。4.asto意为“关于,至于”。5.so+形容词/副词+asto意为“如此……以致……”6.such+形容词+名词十asto意为“如此……以致……”7.assoonas意为“一……就……”8.may/might/couldaswell意为“不妨....,不如....,最好.....。9.asamatteroffact(事实上),asaresult(结果),as...aspossible(尽可能),asusual(和往常一样)，soasto(以便),aswell(同样),assoonaspossible(尽可能快)，as...asonecan(某人尽可能....suchas(像这样的)，asfr(.就……而言)，asfro..(从.....时起)。专项练习()1.Helooksasifheafootballplayerthoughinfactheisateacher.areB.isC.wasD.were()2.IwillhelpyouIcan.solongasB.aspossibleasC.aswellasD.unless()3.Aftersuppershewouldsitdownbythefire,sometimesforanhour,thinkingheryoungandhappydays.aslongasB.assoonasC.asmuchasD.asmanyas()4.Ataroughestimate,NigeriaisGreatBritain.threetimesthesizeasB.thesizethreetimesofC.threetimesasthesizeofD.threetimesthesizeof()5.Youcanhaveabed,butthechildren,theywillhavetosleeponthefloor.asifB.asforC.asyetD.asof()6.Whenapencilispartlyinaglassofwater,itlooksasifit.breaksB.hasbrokenC.werebrokenD.hadbeenbroken()7.Shelooksaroundasifsheinsearchofsomeone.wereB.hadbeenC.isD.had()8.Iknowthemoneyissafe,Ishallnotworryaboutit.EventhoughB.UnlessC.AslongasD.While()9.Wewillbeabletogetthereontime,ourcardoesn'tbreakdownontheroad.assoonasB.asfarasC.aswellasD.aslongas()10.--Whydoyoudrinksomuchcoffee?--Well,itdoesn’tkeepmeawakeatnight,Iseenoharminit.A.althoughB.aslongasC.asfarasD.forvi.as用作关系代词1.as与such连用,这时as=who/which。2.as与thesame连用。3.as和which都可以引导定语从句,先行词是整个主句或者主句的一部分。1)as从句经常可以放在句首,而which从句不能放在句首。2)当主句是否定句时,多用as引导从句。3)as意为“正如”，而which意为“这一点”。4)当从句谓语是see或know时,多用as引导从句。5)当从句是被动语态时，多用as引导从句。专项练习()1.isknowntoeveryone,themoontravelsroundtheearthonceeverymonth.A.ItB.AsC.ThatD.What()2.ismentionedabove,thenumberofthestudentsinseniorhighschoolsisincreasing.A.WhichB.ASC.ThatD.It()3.isknowntoall,Chinawillbeanandpowerfulcountryin20or30yearstime.That;advancingB.This;advancedC.As;advancedD.It;advanced()4.AlsorailtravelisverysafeandIamneversickonatrain,Iamonaship!A.whenB.whileC.asD.and()5.isreportedinthenewspapers,talksbetweenthetwocountriesaremakingprogress.ItB.AsC.ThatD.What()6.RobertisgoodatEnglish,weallknow.becauseB.whichC.asD.since综合练习用适当的词填空。Shehadatenseexpressiononherface,shewereexpectingtrouble.2.Agoodmanyproposalswereraisedbythedelegates,tobeexpected.3.beexpected,theresponsetothequestionwasverymixed.4.Americanseattwiceproteinastheyactuallyneedeveryday.5.Thetrumpetplayerwascertainlyloud.But1wasn'tbotheredbyhisloudnessbyhislackoftalent.6.Studiesshowthatthethingsthatcontributemosttoasenseofhappinesscannotbebought,agoodfamilylife,friendshipandworksatisfaction,7.heworkshard,Idon'tmindwhenhefinishestheexperiment.8.thedangerfromenemyaction,peoplehadtocopewithasevereshortageoffood,clothing,fuelandalmosteverything.9.Wehopethatthemeasurestocontrolprices,takenbythegovernment,willsucceed.10.Shedoesn'tspeakherfriend,butherwrittenworkisexcellent.11.Thepianointheothershopwillbecheaper,butnot.12.Thegreatuseofaschooleducationisnotsomuchtoteachyouthingsteachyoutheartoflearning.13.WiththehelpoftheGermanexperts,thefactoryproducedtwicecarsin1993astheyearbefore.14.oftenthecasewithanewidea,muchpreliminaryactivityandoptimisticdiscussionproducenoconcreteproposals.15.Cleveris,hedoesn'tstudywell.16.Hardtried,hewasunabletomakemuchprogress.17.Tomkeptquietabouttheaccidentnottolosehisjob.18.aspecializedbranchofphysics,themechanicsoffluidshasmadegreatprogress.19.Intheworldnocountryhasexactlythesamefolkmusicofanyother.20.knowntoall,Chinawillbeanadvancedandpowerfulcountryin20or30years'time.21.Hedoesn’tbelievethethingsyoudo.22.mentionedabove,thenumberofthestudentsinseniorhighschoolsisincreasing.23.IadmireDavidasapoet,Idon'tlikehimasaman.24.Theuniverse,weknow,mighthavebegunwithagreatexplosion.25.Iwonderwhyyoudon'tdotoldtoandit'sthethirdtimeyouhavedoneso.26.Iexplainedonthephone,yourrequestwillbeconsideredatthenextmeeting.27.Thatisadifficultproblemcan'tbeworkedoutbyanyofus.28.Thatisadifficultproblemnoneofuscanworkitout.29.Therewerenotsomanyjobsavailableaskedfor.30.timewenton,