不定式公开课.ppt

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1、M5Unit1GrammarIt’samypleasuretoteachyou"infinitive"heretoday.Youshouldtryyourbesttoimpresstheteachers.Iexpectallofyoutoperformwellinthisclass.Tobehonest,maybealittlehard.Theyadvisedmetogiveupsmoking.Theyadvisedme_______________smoking.HepromisedtotakecareofthepoorHepromised________

2、_______thepoorStep1基本形式和否定形式肯定式:todo否定式:nottodonottogiveupnottotakecareof动词不定式的时态和语态Iopenedthedoortoentertheroom.㈠.一般式(todo/tobedone).不定式的一般式所表示的动作（状态）同时（或几乎同时）发生，或之后发生。Step2㈡.进行式(tobedoing)TheyseemedtobetalkingaboutsomethingsecretwhenIcamein.如果谓语表示的动作（情况）发生时，不定式所表示的动作正在进行。㈢.完成式（to

3、havedone/tohavebeendone)2.I’mpleasedtohavebeengiventhischance.1.YouseemedtohavereadthenovelwrittenbyMr.Smith.如果不定式的动作发生在谓语之前。如果不定式的逻辑主语是不定式所表示的动作的承受者，不定式要用被动形式.语态时态主动语态被动语态一般时进行时完成时小结todotobedonetobedoing/tohavedonetohavebeendone练习Hello!It’sgood__________(see)youagain.Bye-bye,I’mgl

4、ad_______________(see)you.Theypretend_____________(work)hardwhentheteachercamein.Thegirlstudentsissaid_____________(send)abroadlastweek.Allthestudentsinourclasshaveenteredforthesports-meeting__________(hold)nextweek.1.作主语2.作宾语3.作宾语补足语4.作定语5.作状语6.作表语Todolikethatisfoolish.Iwanttoseey

5、outhisevening.Allyouhavetodoistofinishitquickly.Wefoundahousetolivein.ShecameheretostudyEnglish.Iwarnedthepatientnottodrinkcoldwateraftertheoperation.主语宾语表语定语状语宾补Step4不定式的用法Doyoubelievehecanflylikeabird?HowcanyoubelieveIcanflylikeabird?_______istobelieve.It’simpossibleforhumans____

6、_____________now.Toseetoflylikeabird作主语______________isourduty.___________________isright=Itisrighttogiveupsmoking.1.帮助你是我们的职责。2.放弃吸烟是对的。不定式短语作主语时，如果主语太长，常用it作形式主语，真正的不定式主语后置。TohelpyouTogiveupsmoking作主语。一般用不定式做主语的句型It+be+adj+forsb.todosthIt+take+sb+time+todosthIt+cost+sb+money+todo

7、sthMyjobto________________.Yourtaskto_____________.isis.不定式作表语protecttheworld.作表语Myjobis_______________Toseeis___________.1.我的工作是教英语。2.眼见为实。toteachEnglish.tobelieveHelikesto______________.Ifinditstillnecessary(forhim)to___________ifhewantstowin.不定式作宾语playbasketball句型：think/consider

8、/findit+adj.+todo只能接不定式作宾语