todo不定式微课课件

Todo---infinitve

不定式用法

1.做主语:Toliveistowork.Tosavetimeistolengthenlife.Todo不定式做主语，谓语动词用单数形式

1.做主语:Itisagreatpleasuretoplaybasketball.即:Itis/was+adj/n+todo为使句子平衡,常用it作形式主语,把真正的todo不定式主语移到句子后部去.真正主语形式主语

2.做表语:1.HeistomarryRose.2.Herwishwastobecomeanartist.3.Theformistobefilledinandreturnedwithinaweek.

表示按计划和安排将要发生的事情。表示主语的内容，但侧重于目的性表示情态意义(应该,必须)

3.做宾语（跟在某些动词后）:hope,want,expect,desire,like,love,dislike,hate,plan,intend,mean,prepare,decide,determine,afford,fail,manage,try,dare,help,promise,refuse,learn,offer,agree,forget,bother,ask,beg,decide,seem,wish,demand,refuse,manage,happen......

3.做宾语（跟在某些动词后）:tell,advise,show,teach,findout,decide,discuss,learn,explain…某些动词+疑问词+不定式tellsbwhattodo…

4.做宾语补足语:1.Theymadeusgowiththem.Let/have/makesb.do;getsb.todo使役动词2.Theboywasmadetostudy.使役动词被动注意：变被动要加to

4.做宾语补足语:1.Thechairmanrequestedthememberstobesilent2.Theguardforbademetoenter.3.Manyparentsexpecttheirchildrentostudyabroadask,tell,request,order等表要求,命令的动词

allow,permit,forbid等表许可或禁止的动词

wish,want,expect,intend等表希望的动词hope×

4.做宾语补足语:4.Inoticedtearscomeintohiseyes.5.Weoftenhearhersingthesongathome.

see,watch,notice,hear,listento,observe,feel等表感官的动词后的不定式均不带to6.Pleaseremindmetotaketheraincoat.advise,help,persuade,encourage,warn,cause,force,remind…

4.做定语:1.Hesaidhehadanimportanttoattend.2.Thefishermanhadnothingtotakehomethatmoring.

动词不定式作定语时，须放在被修饰的名词或代词的后面。

4.做定语:1.Givemeapieceofpapertowriteon.2.Heislookingforaroomtolivein.

如果不定式是不及物动词，后面就应有必要的介词。

4.做定语:1.Hehadnochancetogotoschool.2.Tomhadnotimetothinkaboutrest.3.Isthatthebestwaytosolvetheproblem?

有很多名词常可用不定式作定语:decision,wish,chance,promise,plan,time,attempt,effort,right,ability,patience...

5.做状语:1.Shedidallshecouletosavehim.2.Helaughedtohearthenews.3.Thehouseislargeenoughtohold2000people.

动词不定式做状语时，表示目的，结果，原因等。目的原因结果

5.做状语:1.Inordertopasstheexam,heworkedhard.2.Hewassoangryastobeunalbetospeak.

目的状语还可以用inorderto,soasto来表示，但是soasto不能置于句首。

onlytodo,so...astodo和such...astodo中的不定式均作结果状语。目的目的BECONTIMUEDTOREPLAYCLOSE

8.虚拟语气在其他句型中：1.IfonlyIhad

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