动词不定式复习课件

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Hiswishisto…professionalfootballer

pilotscientistHiswishisto…pro动词不定式复习TheInfinitive(Revision)定义构成用法动词不定式复习TheInfinitive(Revisio

动词不定式的基本概念

动词不定式没有人称和数的变化，在句子中不能作谓语，但可以有自己的宾语和状语。动词不定式同它的宾语和状语构成动词不定式短语，如toreadthebook,tospeakatthemeeting等。动词不定式的动词不定式基本形式to+动词原形动词不定式基本形式to+动词原形

动词不定式的用法动词不定式具有名词，形容词和副词的特征，因此在句中可作主语，表语，宾语，宾语补足语，定语和状语。功能：

主语表语宾语宾语补足语定语状语动词不定式的用法动词不定式具有名词，形容词和副词的特征，动词不定式的用法

1用作主语Ato不定式常用作句子的主语。但多数情况下常用it作形式主语。将to不定式后置。句型：Itis/was+adj.+forsb.+todo例如：Toflywasdifficultforhumanbeings.

=Itwasdifficultforhumanbeingstofly.

Totakepartinsportsandrecreationisimportant.=Itisimportanttotakepartinsportsandrecreation.B在某些形容词kind,good,nice,clever,careless等作表语时，不定式前常可加of引起的短语。说明不定式指的是谁的情况。句型：Itis/was+ofsb.+todo例如：It’skindofyoutosayso.(=Youarekindtosayso.)动词不定式的用法1用作主语Ato不定式常Cto不定式还可用于结构It+take+sb+sometime+todo例如：Itusuallytakesmeanhourtogotomyoffice.ItwilltakethreedaysfortheparceltoreachBeijing.

Model:A:HowlongwillittakefortheparceltoreachBeijing?B:ItwilltakefortheparceltwodaystoreachBeijing.Substitues:1)us,flytoBeijing,twohours2)her,gotoschoolbybus,anhour3)apostcard,reachChinabyordinarymail,threedays4)theworkers,finishbuildingthehighrises,twoyearsCto不定式还可用于结构It+take+sb

2用作表语to不定式用于be动词后作表语例如：1）Hisjobistoorganizetheschoolsportsmeeting.2)Hiswishistobecomeascientist.Ex:Completethesentences:1)Hisworkis________________________(是教孩子们数学）2)Mywishis________________________(是成为一名足球运动员）3)Herhobbyis_______________________(是收集邮票）4)Myplanis_________________________(是去青岛）5)Yourhomeworktodayis_________________（是背诵课文）toteachthechildrenmaths.tobeafootballer.tocollectstamps.togotoQingdao.torecitethetext.2用作表语例如：1）Hisjobis

3用作动词的宾语不定式常用作某些动词的宾语如：hope,wish,learn,like,love,

manage,offer,plan,remember,forget,try,decide等。例如：Shewantedtobuyafewstamps.Hebegantorepairthewatch.

4用作宾语补足语1）to不定式用作某些动词如：tell,ask,want,invite,allow等宾语补足语。例如：Itoldhimtokeepquiet.WangHai’motheraskedWangHaitopostalettertohiselderbrother.3用作动词的宾语不定式常用作某些动词的宾

2．使役动词let,have,make及感官动词see,watch,notice,hear,feel等要以不带to的不定式作宾补。

例如：Hemademewriteareport.

注意：感官动词后既可跟不带to的不定式作宾补，也可跟v-ing作宾补，前者表示动作的全部过程已结束；后者表示动作正在进行。例如：Isawhimcomedownstairs.我看见他下了楼。（说明他下楼了这件事）Isawhimcomingdownstairs.我看见他在下楼。（说明他下楼时的情景）2．使役动词let,have,make及感官动词s5）用作定语to不定式可作名词修饰语，作定语置于被修饰名词之后。例如：Ihaveanimportantmeetingtoattend.Couldyougivemesomethingtoeat.Ex:Completethesentences:1)Ihavesomethinginteresting_______________(告诉你）。2)Haveyougotanything__________________（要说的）？3)Shehassomemathsproblems_______________（要解答）。4)Ihavesometapes____________________（要听）。totellyoutosaytoworkouttolistento5）用作定语例如：Ihaveanimporta

（6）用作状语1）用作目的状语。例如：Theycametoseeusyesterday.

“inorderto/soasto”也表目的。可以转换成sothat引导的目的状语从句例如：Sheworkedhardinordertofinishthejobintime.=Sheworkedhardsothatshecouldfinishthejobintime.2)用于结构too+形/副+to不定式（太….以致于不能…)表结果。例如：Hewastootiredtogoonwalking.=Hewassotiredthathecouldn’tgoonwalking.3)用于结构形/副+enough+to不定式（足够…以致能…)例如：Heisoldenoughtogotoschool.Weweren’tluckenoughtohaveaWhiteChristmas.4)用于作表语的形容词后作状语，说明原因或哪方面的事。例如：Theywerehappytoseeme.（6）用作状语“inor

（二）动词不定式可以和疑问词what,which,how,where,when等连用构成不定式短语。例如：Thecomputerdoesn’tknowwhattodo.Doyouknowhowtoworkouttheproblem?Ex:Completethesentences:1)Ireallydon’tknow____________________(下一步做什么）。2)Pleasetellme_____________________（什么时候出发）。3)Iwanttoknow_______________________(哪买这本书）。4)Couldyoushowme___________________(怎样做）。5)Marydoesn’tknow___________________(说什么）。6)Idon’tknow_______________________(乘哪辆车）whattodonextwhentostartwheretobuythisbookhowtodoitwhattosaywhichbustotake（二）动词不定式可以和疑问词what,which(三）动词不定式的否定形式“not+动词不定式”构成。例如：Tellhimnottothrowwastepaperontheground.Mothertoldmenottobelateforschool.(三）动词不定式的否定形式“not+动词不定式”构成

Exercises:IChoosetherightanswer:()1.Hehopes__________manyforeignstamps.A.collectBtocollectCtocollectsDcollecting()2.Myjobis________youmaths..AtoteachBteachingCteachesDtaught()3.Motheraskedherfive-year-oldson______inthestreet.Adon’tplayfootballBtonotplayfootballCnottoplayfootballDdoesn’tplayfootball()4.Hismotherlethim_______.AgotobedBtogotobedCwenttobedDgoestobedCACAExercises:CACA()5.I’mhungrynow.Bringmesomething________.AeatBtoeatCeatingDate()6.Couldyoutellme________NanpuBridge?AtogettoBhowtogetChowtogettoDhowtoreachto()7.Iheardhim__________inhisroom.AtocryBcriedCcriesDcry()8You’dbetter________anynoise,forhe’ssleeping.Adon’tmakeBnottomakeCtonotmakeDnotmake()9Iwantabox_______.AtoputtheshoesBtoputtheshoesinCputtheshoesinDputtingtheshoesBCDDB()5.I’mhungII句型转换1Helefthomeat6:30andwentthereat7:00.=It________himhalfanhour_______getthere.2ItissosmallthatIcanputitintomypocket.=Itis______________tofitintomypocket.3.IhopethatIcanwinthematchtomorrow.=Ihope_______________thematchtomorrow.4PleasetellmewhatIshoulddonext.=Pleasetellme_____________donext.5.Hehadlittlemoneyonhim.Hecouldn’tbuyit.=Hewasnot______________tobuyit.took

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