高二英语theenvironment课件1

Unit2GrammarandusageVerb-ingformasanadjectiveoradverbandVerb-ingphrasesPart1Verb-ingformasanadjectiveoradverbLead-inChoosetherightanswer.1.Thechildrenstopped_____astheteachercamein.AtalkBtotalkCtalkingDtalked2.Heisquiteused_______inallsortsofweather.AflyBtoflyCtoflyingDtoflied3.DoctorBethunewenton____throughoutthenight.AworkBworkedCtoworkDworking4.Yourshoesaredirty.Theyneed_____badly.AwashBwashedCtowashDwashing5.Theteacherspentalotoftime_____mewithmygrammar.AhelpBtohelpChelpedDhelping6.Itwasraininghard,butwekepton_____forward.AmoveBmovedCmovingDtomove7.Pleasecomeearly.Don’tkeepus_______forlong.AwaitBtowaitCwaitingDwaited8.Shesuggested______foranoutingnextSunday.AgoBtogoCgoingDgone9.Wanglininsistedon_____toworkinthecountryside.AbesentBsendingCbeingsentDsend10.Wouldyourfriendmind_______alittlemoresoftly?AtospeakBspokenCspeakingDspeak11.Idon’tfeellike____tothemovies.AgoBtogoCgoingDgone12.Theshygirldoesn’tlike______atinpublic.AlaughingBtolaughClaughedDbeinglaughed13.Ifirstconsidered______tohim,butthendecided______him.Awriting;seeingBtowrite;toseeCwriting;toseeDtowrite;seeing14.Doyouconsideritbetter_______?AnotgoingBnotgoCnothavinggoneDnottogo现在分词的作用:可以作形容词和副词作用，在句中作定语表语或宾语补足语。1.做定语Itisaverymovingfilmanditiswellworthseeing.Uponhearingtheexcitingnews,theyjumpedwithgreatjoy.单个的现在分词作定语，放在名词的前面，相当于形容词，可加副词修饰。Thefast-growingeconomyhascausedenvironmentalproblems.CanadaisanEnglish—speakingcountry.有时现在分词可以和副词或名词构成复合形容词。Thegirlsittinginthecornerismybestfriend.=Thegirlwhoissittinginthecornerismybestfriend.Peopleworkinginthatbankarewellpaid.=Peoplewhoworkinthatbankarewellpaid.现在分词短语作定语放在名词后面，意思和定语从句一样，并且可以转变成定语从句。YourjourneyinKenyaisreallyexciting.Whatyoudidwasdisappointing.ThenightmareIhadlastnightwasveryfrightening.现在分词作表语通常表示主语的属性和特征.2.作表语3.作宾语补足语WefindthejourneytoAfricaexciting.Hehadastrangewaytomakehisclassesinteresting.Iheardsomeoneplayingtheviolininthenextroom.注意：在see,hear,watch,feel,notice等动词后，用现在分词构成的复合宾语，表示动作正在进行；而动词原形则表示动作的全过程，即动作已结束。Wesawtheteachermakingtheexperiment.Isawthegirlgetintothecaranddriveoff.现在分词用于动词standsit和lie后，通常表示这两个动作同时发生。Theystoodtalkingtoeachother.(现在分词talking用于动词stand后，表示动作talk和动作stand同时发生）＝Theystoodwhentheyweretalkingtoeachother.注意：现在分词也有完成时式having+过去分词Havingworkedsidebysidewithmanyenvironmentalists,Iknowthatahealthyenvironmentandgrowingeconomyshouldbepossibleatthesametime.(现在分词的完成时形式havingworked说明work先于主句谓语动词know发生）Exerciseonpage291.shocking2.relaxing3.tiring4.disappointing5.interesting6.livingPartAPart2Verb-ingphrases做状语现在分词作状语时，其逻辑主语必须与句子的主语相同；如果不相同，分词前必须加上自己的主语，这种结构被称为独立主格结构。Timepermitting,Iwillstayforanotherweek.=Iftimepermits,Iwillstayforanotherweek.1.作伴随状语动词stand,sit和lie加现在分词作伴随状语，表示两个动作同时发生。Wesattheretalkingtoeachother.Thepoormansatbytheroad,begging.2.作方式状语，表示方式。Americansliketravelling,drivingtheircars.Theyoftencommunicatewitheachother,usingEnglish.3.作时间状语，相当于状语从句。现在分词可表示动作同时发生或进行，而现在分词的完成时可表示动作的先后顺序，表示它发生在主句谓语动词表示的动作之前。Seeingthebigsnake,thegirlwasalmostfrightenedtodeath.=Whenshesawthebigsnake,thegirlwasalmostfrightenedtodeath.Havingwaitedinthelineforhalfanhour,hesuddenlyrealizedthathelefthiswalletathome.=Afterhewaitedinthelineforhalfanhour,hesuddenlyrealizedthathelefthiswalletathome.有时表示时间的分词短语可由连接词when,while,once,until,whenever等引出。Whilereadingthenovel,henoddedfromtimetotime.4.作原因状语，相当于原因状语从句。Beingastudent,Imustworkhard.=BecauseIamastudent,Imustworkhard.Notknowingwhattodonext,heturnedtotheteacherforhelp.=Becausehedidn’tknowwhattodonext,heturnedtotheteacherforhelp.5.作结果状语Bothhisparentsdiedinthewar,leavinghimaloneintheworld.Thefishcaneatapersonintwominutes,leavingonlythebones.6.作条件状语Workinghard,youwillsucceedoneday.=Ifyouworkhard,youwillsucceedoneday.Puttingmoresaltintothesoup,youwillfinditmoredelicious.注意：现在分词的否定式中，否定词not必须放在最前面。NotknowingmuchEnglish,hefounditdifficulttocommunicatewithforeigners.Nothavingreceivedareply,hewrotealettertotheprofessoragain.1.___fullpreparations,wedecidedtoputputoffthemeetingtillnextweek.A.WedidnotmakeB.HavingnotmadeC.WehadnotmadeD.Nothavingmade2.Europeanfootballisplayin80countries,____itthemostpopularsportintheworld.A.makingB.makesC.madeD.tomake3.____whatthesituationwouldbelike,theydecidedtokeepsilent.A.HavingnotknownB.knowingnotC.NotknowD.Notknowing4.____theearthtobeflat,manyfearedthatColumbuswouldfallofftheedgeoftheearth.A.havingbelievedB.BelievingC.BelievedD.Beingbelieved5.____suchheavypollutionalready,itmaynowbetoolatetocleanuptheriver.A.HavingsufferedB.SufferingC.TosufferD.Suffered6.___alloverthehillsandaroundthelakearewildflowersofdifferentkinds.A.TogrowB.GrowingC.GrownD.Grow7.Tomsatunderatree,andseeinghisfriend,_____upinnotime.A.tostandB.standingC.stoodD.wouldstand8.Hesentmeanemail,____togetfurtherinformation.A.hopeB.hopingC.tohopeD.hope9.______theprogramme,theyhavetostaythereforanothertwoweeks.A.NotcompletingB.NotcompletedC.NothavingcompletedD.Havingnotcompleted10.Suddenly,atallmandrivingagoldencarriage_____thegirlandtookheraway,____intothewoods.A.seizing；disappearedB.seizing；disappearingC.seizing；todisappearD.seized；disappearingHomework:DOexerci