UnitUnit11OxfordEnglishModule1SocialcommunicationHelpingthoseinneedHelpingthoseinneedPeriod3Period3GrammarGrammarGrammar:InfinitivesGrammar:Infinitives•Threeteenagersofferedtodosomevoluntaryworkduringtheschoolholidays.•Cindywantedtopaintapictureoftheparknearherhome.InfinitivesSomeverbscanhaveotherverbsafterthem.Weusuallyusetobeforethesecondverb.Wecallthesesecondverbsinfinitives.Wecanuseverbs+to+infinitivesinsentences.作宾语(1)后接不定式作宾语的动词有want,try,decide,hope,need,wish,agree,expect,refuse,learn，remember,forget,wouldlike/love等。如：Ihope__________therebeforedark.我希望天黑以前到那儿。(2)在think,find,make等动词后通常用it作形式宾语，而将不定式移至形容词之后，构“成主语＋动词＋it(形式宾语)＋宾补(形容词/名词)”＋不定式结构。如：Ifounditdifficulttosolvetheproblem.我发现解决这个问题很难。toget•Threeteenagersofferedtodosomevoluntaryworkduringtheschoolholidays.•Cindywantedtopaintapictureoftheparknearherhome.objectobjectMoreexamples:Moreexamples:•MymotherandIwillcontinuetovisitVivien.•Iwantedtohelpdisabledchildren.•WeneedtohelpchildrenlikeTimandraisetheirspirits.objectobjectneedtodolearntodoagreetodoplantododecidetodorefusetodobegintodostarttodotrytodoforgettodoremembertodoliketodoStoptodogoontodo“”疑问词＋不定式结构动词不定式可以和疑问词what,which,when,where,how等连用，构成不定式短语，在句中作主语、宾语、表语、宾语补足语等。如：Hedoesn'tknow________________.他不知道要穿什么。(作宾语)[提醒]动词不定式的否定结构:nottodosth。whattowear•Wecanusequestionwords+to+infinitivesafterdecide,know,learnandremember.Doyouknowhowtohelpdisabledpeople?telleIdon’tknow______toaskforhelp.“疑问词＋不定式”用法例:Hedidn’ttellmewheretogo.(直宾)Idon’tknowwhattosaynow.(宾语)Idon'tknowwhattodonext.(宾语）Hetaughtushowtousethecomputer．(宾语补足语)A.MarkandhismothervisitedVivien.Markistellinghisfriendsaboutthevisit.Completehiswordswiththecorrectformsoftheverbsinbrackets.•We(1)decidedtomeet(decide/meet)Vivientoday.We(2)__________________(want/help)herinsomeway.Whenwearrived,Vivienwasveryhappy.She(3)_____________•(begin/talk)tomeaboutherschool.•Shesaid,“I(4)____________(like/go)toschool,butIdon’thaveanyfriends.Ifeellonely.”wantedtohelpbegantotalkliketogo•Mumgavehersomeadvice.ThenMumaskedmetogiveVivienherpresent,butI(5)__________________(forget/bring)it!Viviensaid,“It’sOK.I_____________(hope/see)youagainsoon.”forgottobringhopetoseeInfinitivesasobjectcomplementsInfinitivesasobjectcomplements•AnnietaughtTimtosingbeautifulsongs.•Wewantthemtobehappy.objectobjectcomplementcomplementWecanalsouseverbs+objects+to+infinitivesinsentences.Wetaughtthemtotellstories.用作宾语补足语：(v.+sb.+todo)后面能接带to的不定式作宾补的动词有tell，ask，allow，want，help，wish，teach，warn，invite，wouldlike,encourage等。如：Theteachertoldus__________Exercise1.老师要我们做练习一。todoinfinitiveswithoutinfinitiveswithouttoto•Weuseinfinitiveswithouttoaftersomeverbs,suchasletletandmakemake.e.g.Thismakesthemexpresstheirfeelings.•Wecanuseinfinitiveseitherwithorwithouttoaftertheverbhelphelp.e.g.Mummademegotobedearlyobjectobjectcomplementcomplement作宾语补足语不带to的情况：常见动词有：一感：feel二听：listento,hear三让:let,make,have四看:see,lookat,watch,notice比较：Isawhercrossingthestreet.Isawhercrossthestreet.当不定式用于let,make,have等使役动词后作宾语补足语，不定式必须省略to。eg.1.Letmehaveanothercupof...
