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1、Infinitive动词不定式知识梳理形式主动式被动式与谓语动作的关系一般式todotobedone动作发生在谓语动作之后进行式tobedoing/与谓语动作同时发生完成式tohavedonetohavebeendone动作发生在谓语动作之前Pickouttheinfinitivesinthesentencesandtelltheirfunctions.HepretendedtobereadingattentivelywhenIcamein.ItisofgreathelpforustolearnEnglishwell.Ididn’texpectMarytoinviteme
2、toherbirthdayparty.Shelistenstonewseverydaysoastofindoutwhat’sgoingon.Thecartobeboughtisforhissisters.Theimportantthinginlifeistohaveagreataim,andthedeterminationtoattainit.(宾语）(主语）(宾补）(状语）(定语）(表语）不定式可作主、宾、表、定、状、补语。起名词，形容词和副词的作用。归纳不定式不定式在句中的作用Itisnecessarytotellhimthetruth.Totellhimthetru
3、thisnecessary.主语练习1.再次见到你真高兴。It’snice/good/agreatpleasuretoseeyouagain.2.他们那样做是不明智的。Itisunwise___________________.Itis+n/adj.(for/ofsb.)todoTogiveupsmokingisright.Itisrighttogiveupsmoking.不定式的用法ofthemtodolikethat不定式在句中的作用2.Ineedtoattendthemeeting.宾语练习他们决定周末去野餐。Theyhave____________________
4、___attheweekend.Shewantstoseethenewmovie.decide,/determine,learn,want,expect/hope/wish,refuse,manage,care,pretend,offer,promise,choose,plan,agree,ask/beg,help/afford,strive,happen,wait,threaten他拒绝借给我自行车。They______________mehisbike.不定式的用法decidedtohaveapicnicrefusedtolendV+todo(5+3P60)决心学会想
5、希望,拒绝设法愿假装.学会答应选计划,同意请求帮一帮.不定式在句中的作用3.Haveyougotanyquestionstoask?Ihavenochairtositon.练习没什么可担心的。Thereisnothingtoworryabout.定语Betty是第一个知道真相的人.Bettywasthefirsttoknowthetruth.不定式的用法修饰抽象名词如：ability,answer,reply,chance,excuse,idea,moment,reason,time,promise,attempt,way等+todo(5+3P61)我没机会外出观光。Ih
6、avenochancetogosightseeing.不定式在句中的作用4.ThebestwaytolearnEnglishistomakefriendswithanativespeaker.表语练习我的目标是考入北大。她的梦想是当一名设计师。Mygoalis______________________.Herdreamis__________________.不定式的用法tobeadmittedtoBeijingUniversitytobecomeadesigner不定式在句中的作用5.Ididn'texpectMarytoinvitemetoherbirthdaypa
7、rty.宾补练习你可以让你姐姐帮你一下。Youcanaskyoursistertohelpyou.我总是劝他戒烟。Ialwaysadvisehimtogiveupsmoking.advise,allow,ask,beg,encourage,expect,forbid,force,get,invite,order,persuade,permit,prefer,tell,want,warn,wish,wouldlikesb.todo(5+3P62)不定式的用法注意有些动词后面的不定式不带to，如feel（一感）hear,liste
