不定式to用法详解和练习.ppt

不定式to用法详解和练习.ppt

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Infinitive动词不定式,主语,1.TobehereatChristmastimeismydream.,2.Togoabroadishisdream.,3.Tosayiseasy,whiletodoisdifficult.,（这时可将其用形式主语it来替换）,ItismydreamtobehereatChristmastime.,Itishisdreamtogoabroad.,Itiseasytosay,whileitisdifficulttodo.,宾语Iwanttobuyacomputer.Shehopestofindabetterjob.Iwishtogowithyou.Doyouthinkitbetternottogo?

形式宾语,真正宾语,表语,Hisworkistofeedtheanimals.,Herjobistolookafterthepatients.,Mydreamistobeaartisit.,宾语补足语,Sheaskedmetohelpher.Theteachertoldhimtocomeontime.Edisonsmothertaughthimtoreadandwrite.wantsbtodowishsbtodogetsbtodorequiresbtodofindsbtobehelpsbtodo,作宾语补足语不带to的情况:

感官动词、使动词后面的to常省略，但是被动语态中的to不能省略,Letmedoit.Isawhimsingintheclassroom.常见动词有：

有些动词后面做宾补的不定式不带to，如hear（一听）see,watch,（两看）make,have,let（三让）例如：

Iwatchhersinginthenextroom.Iheardhersinginthenextroom.,定语,Givemesomethingtodrink.,Ihavetwobookstoread.,Theyhavemuchfoodtoeat.,Heaskedforaroomtolivein.,Idonthaveapentowritewith.,Theiceishardenoughtoskateon.,Heboughtatoytoplaywith.,状语（adverbial）,HecametoshowmehisnewCDplayer.Iwenttheretoseemyteacher.ShecamebacktogetherEnglishbook.Theboywastoofrightenedtomove.,（目的）,（目的）,（目的）,（结果）,Hearrivedsolatetofindthetrainleave.,（结果）,疑问词who,what,which,where,when,how加todo可构成不定式短语，在句中可用作主语、宾语、宾语补足语、表语等。

Whentoleavehasnotbeendecided.,Idontknowwhattodo.,Hecantellyouwheretogo.,Thequestioniswho（m）toask.,（主语）,（宾语）,（宾语补足语）,（表语）,不定式的其他用法,你决定穿什么参加去参加面试了吗？

Haveyoudecidedwhattoweartotheinterview?

没人告诉我在哪买票。

Nobodytoldmewheretobuytheticket.,Ittakesyoutenminutestogetthere.Ihopetoseehimsoon.Hiswishistobecomeanartist.Peopleeattolive,butnotlivetoeat.Ihavealottotellyou.Itsnotrighttobethinkingofoneself.Weoftenseehimplayfootball.,定语,主语,状语,表语,宾语,主语,宾语补足语,Pickouttheinfinitivesandtelltheirfunctions.,8.HepretendedtoreadattentivelywhenIcamein.9.ItisofgreathelpforustolearnEnglishwell.10.IdidntexpectMarytoinvitemetoherbirthdayparty.11.Shelistenstonewseverydaysoastofindoutwhatsgoingon.12.Thecartobeboughtisforhissisters.13.Theimportantthinginlifeistohaveagreataim,andthedeterminationtoattainit.,（宾语）,（主语）,（宾补）,（状语）,（定语）,（表语）,特殊的动词,1）.只能后接动词-ing形式作宾语的动词,常见的有：

suggest建议practice练习finish完成keep保持canthelp情不自禁mind介意giveup放弃enjoy喜欢2）只能接不定式作宾语的动词，常见的有decide决定refus拒绝promise承诺afford能够agree同意hope希望,stoptodosth停下来做stopdoingsth停止做forgettodosth忘记要做forgetdoingsth忘记做过remembertodosth记得要做rememberdoingsth记得做过trytodosth尽力去做trydoingsth试着做goontodosth接着做另外一件事goondoingsth继续做同一件事meantodosth打算做meandoingsth意味着做canthelpdoingsth忍不住做了canthelp（to）dosth不能帮助做某事,