Grammar非谓语动词非谓语动词功能比较todo的复合结构-ingform的复合结构非谓语动词的否定式-ingform与pp的区别`1.谓语动词与非谓语动词:在句子中担任谓语的动词,叫做谓语动词;在句子中担任主语、宾语、表语、定语和状语等的动词,叫做非谓语动词。Weshouldservethepeopleheartandsoul.Iamreadinganovel.ShefoundEnglishhardtolearn.Seeingisbelieving.Theresultsobtainedarequitesatisfactory.Pleasestopspeaking.(谓语)(谓语)(状语)(主语和表语)(定语)(宾语)2.非谓语动词的分类不定式(infinitive)分词(participle)动名词(gerund)3.非谓语动词的特点1)不能单独做谓语,但可和助动词或情态动词组成谓语。Yououghttohavebeenhereyesterday.2)具有动词的特征,可以有自己的宾语或状语。ThePartycalledonustoservethepeople.3)连系动词的非谓语动词形式后还可以带表语。Thestudentsranoutoftheclassroom,laughingmerrily.Tobefrank,yourplanisnotpracticable.主语表语宾语定语补语状语todo-ingformpp非谓语动词功能比较eg.Ilikeskating,butIdon’tliketoskatetoday.Playingwithfireisdangerous.Lookout!Toplaywithfireisdangerous.eg.Thereisnojokingaboutsuchmatters.主语1.todo表示具体的动作,-ingform表示泛指的动作。2.“thereisno+主语”句型中,多用-ingform.There’snosayingwhathe’llbedoingnext.There’snotellingwhathe’sgoingtodo.3.不定式短语作主语时,往往放在谓语之后,用it作形式主语。Itisrighttogiveupsmoking.Itmademeveryhappytohearhertalkaboutit.【注意1】Itis+adj+forsbtodosthItis+adj+ofsbtodosth(for引出动作发出者)(of引出adj修饰的对象)主语Itisnouse/gooddoing…【注意2】•Itiseasyformetofinishthisworkbeforeten.•Itisagreathonorforustobepresentatyourbirthdayparty.Itisverykindofyoutogivemesomehelp.It'simpoliteofyoutospeaktotheteacherlikethat.注意:常用在of句型中的adj有:kind,good,nice,wise,unwise,clever,foolish,cruel,careless,stupid,naughty(淘气的),polite,impolite,silly,wrong,brave,honest,noble,right,rude等=Youareverykindtogivemesomehelp.=youareimpolitetospeaktotheteacherlikethat.主语宾语注意:不定式短语作宾语时,如果还带有宾语补足语,往往把不定式宾语放在宾语补足语之后,而用it作形式宾语。Iwanttoknowthismatter.Ihaven'tdecidedwhethertogoorstay.Ifind/feelitinterestingtoworkwithhim.find/think/feel/make/considerit+adj/n+todosth.MyteachermadeitaruleonlytospeakEnglishinclass.考点一:like,hate,prefer,begin,demand,want,expect,promise,determine,refuse,offer,fail,manage,learn,agree,seem,hope,intend,promise,decide,prepare,pretend,continue,wish,start,afford等+todo考点二:admit,appreciate,avoid,consider,delay,enjoy,escape,excuse,face,fancy,feellike,finish,forgive,giveup,imagine,include,keep,mention,mind,miss,practise,putoff,resist,risk,suggest,can’thelp,can’tstand(无法忍受)等+doing宾语考点三:forget,regret,remember,goon,like,mean,stop,try等动词可带动名词或不定式作宾语,但意义上有区别。Irememberdoingtheexercise.Imustremembertodoit.Imeantocomeearlytoday.Missingthetrainmeanswaitingforanotherhour.我记得做过练习.我必须记得去做这事.我打算今早些来.误了这趟火车意味着再等一个小时.宾语考点四:allow,advise,forbid,permit+doingallow,advise,forbid,permit+sbtodobeallowed/advise/forbidden/permitted+todoWedon’tallow__________here.Wedon'tallowstudents_________.smokingtosmoke宾语考点五:在短语devote…to,lookforwardto,stickto,beusedto,objectto,getdownto,be(kept)busy,beworth,havedifficulty/trouble/problem(in),haveagood/wonderful/hardtime(in),There’snouse/good/+doing例如:Ilookforwardto_________fromyousoon.hearing考点六:动词need,require,want作“需要”解,+doingtobedoneThewindowrequires_________._________.cleaningtobecleanedeg.Heattendsthemeetingbeingheldintheroomnow.Heattendedthemeetingheldyesterday.Hewillattendthemeetingtobeheldtomorrow.2.表示被修饰词的内容时,用todo.eg.Shehasastrongwishtogotocollege.away/achancetodo1.从时态上看,-ingform表示正在进行的动作,pp表示已经完成的动作,todo表示将来的动作。定语注意:不定式动词在介词but,except,besides后面时,如果这些介词之前有行为动词do的各种形式,那么,这些介词后的不定式不带to,否则要带to。Shecoulddonothingbutcry.Whatdoyouliketodobesidesswim?Ihavenochoicebuttogo.3.Ihavesomebooksforyoutoread.Heislookingforaroomtolivein.Thereisnothingtoworryabout.Pleasegivemeaknifetocutwith.动名词作定语如:singingcompetitionswimmingpooldiningcaropeningspeechdrinkingcuplivingroomtypingpaperwaitingroomwritingdeskwashingmachinefrying-pansleeping-pillwalkingstickteachingmethod注:动名词作定语表示被修饰名词的用途eg.Ifoundhimcookingsupper.IfoundsuppercookedwhenIgothome.Itistrue—IsawHenrycooksupper.•-ing与宾语为主动关系,强调动作正在进行;•pp与宾语为被动关系,强调动作已经完成;•todo只单纯表示一个事实,强调动作的全过程。补足语注意2:在feel,hear,listento,lookat,notice,observe,see,watch,have,1et,make等词后的补足语中,不定式不带to。但是这些句中如果变成被动结构时,就必须带to。注意1:ask,get,expect,wish,want,help,permit,beg,encourage,order,prefer,advise,like,callon,dependon,askfor,waitfor+sbtodoIoftenhearhimsingthesong.Heisoftenheardtosingthesong·注意3:catch,keep,mind,prevent,remember,stop,start,smell,excuse,send,fancy+sbdoing例如:Shecaughthersonsmokingacigarette.•We’dbetterkeepthefireburning.•Idon’tmindyoujoking.Ilikeit.•Theheavyrainpreventeduscominghereontime.•Wemusttrytostopthemgettingintotrouble.•Idon’trememberhimeversayinganythinglikethat.•Hiswordsstartedmethinkingseriously.•Canyousmellsomethingburning?•Theearthquakesentthechinaandglasscrashingtotheground.作状语时的区别:eg.Theyworkedhardtopayforthenecklace.Iwenttoseehimonlytofindhimout.Iamgladtoseeyou.todo表示1.目的;2.结果—表示出人预料的情况或结果。常用only强调。3.原因—表示造成情感变化的原因。目的结果原因Inordertopasstheexam,heworkedveryhard.Weranallthewaysoasnottobelate.•不定式也可以在作表语用的形容词后面作状语。Iamverygladtohearit.Thequestionisdifficulttoanswer.•too+adj/adv+todo作状语Heistoooldtodothat.•enough+adj/adv+todo作状语Theroomisbigenoughtoholdus.•目的状语还可以用inorderto或soasto来表示。6.United,westand;divided,wefall.(=When/Ifweareunited…)7.Heated,waterchangesintosteam.(=When/Ifwaterisheated…)8.Seenfromthehill,theparklooksverybeautiful.Wewillnotattackunlessatt