非谓语之to+do+不定式用法+课件-2026届高三英语二轮复习专项

To-infinitive非谓语之动词不定式：不能做谓语

Tofinishthattaskinsuchashorttimeisreallyachallenge.Hemanagedtosolvethecomplicatedproblem.Ifeelitagreathonortobeinvitedtospeakatthemeetingbeforesomanystudents.Hiswishistobecomeanastronaut.ObserveandAnswerWhatcomponentdoesto-infinitiveactasinthesesentences?subject主语object宾语object宾语predicative表语ObserveandAnswerOnSundays,healwayshasalotofletterstowrite.Sheraisedhervoicetobeheardwell.Theteacherencouragedthestudentstotakeactivepartinsomeoutdooractivities.Whatcomponentdoesto-infinitiveactasinthesesentences?attribute定语adverbial状语objectcomplement宾补ObserveandAnswerIdon’twanttoenterherheart’smostsacredplaceuninvitedunlessshewishestobelistenedto.Heissaidtohavehandedintoday’shomework..Whenmotherenteredtheroomlastnight,Ipretendedtobeworkingonthecomputer.

Whatcomponentdoesto-infinitiveactasinthesesentences?Whatformdoesithave?1.todo:

谓语动词>do2.tohavedone:

do>谓语动词3.tobedoing:do=谓语动词Overview---to-infinitivecomponentsinasentence:subject,object,predicative,attribute,adverbial,objectcomplementforms:todo,tobedoing,tobedonePractice---to-infinitive1.It’skind_________(of/for)youtohelpmewithmyEnglish.2.Nowadays,it’seasy_________(receive)e-mailsconstantly,andgetnotificationsfromsmartphones.3.Hemademe__________(tell)himthewholestory.4.Productswhicharefashionableorhaveastrongbrandimageareeasy__________(sell).5.Theycoulddonothingbut__________(wait)forthedoctorstocome.6.WhatIwouldliketodonowis_____________(have)agoodsleep.oftelltoreceivetosellwaithaveIt’skind_________(of/for)youtohelpmewithmyEnglish.It’simportant__________(of/for)youtolistenattentivelyinclass.todo不定式特殊用法1之

做主语

当形容词修饰人时，用介词of，当形容词修饰事情时，用for。offor1.It’simportant__________thefigures______________(update)regularly.2.It’swise_______youtosetupascheduleatthebeginningofyourwinterholiday.3.It’sunnecessary_________youtobuysomanyluxurygoodssinceyoudon’tneedthemgenuinely.todo不定式特殊用法1之

做主语

练习

当形容词修饰人时，用介词of，当形容词修饰事情时，用for。fortobeupdatedofforHemademe__________(tell)himthewholestory.todo不定式特殊用法2之

做宾补

当在感官类动词：see,watch,observe,notice,lookat,hear,listento,feeletc.使役动词：make,let,have后做宾语补足语时，省略to。注：Iwasmade____________tellhimthewholestory.telltotell变被动时还原to1.Letthoseinneed__________(understand)thatwewillgoallouttohelpthem.2.Ihaveheardbothteachersandstudents________(speak)wellofhim.todo不定式特殊用法2之

做宾补

练习

当在感官类动词：see,watch,observe,notice,lookat,hear,listento,feeletc.使役动词：make,let,have后做宾语补足语时，省略to。understandspeak“前有do，后无to”适用情况：不定式在but/except后做宾语，以及系动词之后做表语时。注：but/except前有can的任何形式时也要省略to。5.Theycoulddonothingbut__________(wait)forthedoctorstocome.6.WhatIwouldliketodonowis_____________(have)agoodsleep.todo不定式特殊用法3之做宾语和表语

waithave“前有do，后无to”适用情况：不定式在but/except后做宾语，以及系动词之后做表语时。注：but/except前有can的任何形式时也要省略to。1.Ifhetakesonthiswork,hewillhavenochoicebut_________(meet)anevengreaterchallenge.2.Icoulddonothingbut___________(pretend)thatIdidn’tknow.3.Whatwereallyneedtodois______(bring)backplayforchildren.todo不定式特殊用法3之做宾语和表语

练习

tomeetpretendbringadj.+todo/句子中能够找到不定式动作发出者/betoblameProductswhicharefashionableorhaveastrongbrandimageareeasy__________(sell)todo不定式特殊用法4主动表被动

toselladj.+todo/句子中能够找到不定式动作发出者/betoblametodo不定式特殊用法4主动表被动

练习

1.Ihavealotofreadings______________(complete)beforetheendofthisterm.2.Inmanypeople’sopinion,thatcompany,thoughrelativelysmall,ispleasant___________(deal)with.3.Mr.Greenstoodupindefenceofthe16-year-oldboy,sayingthathewasnottheone____________(blame).tocompletetodealtoblame不定式与主从复合句转换1.sb.+be+adj.(sure,certain,likely)+todo=It’s+adj.(sure,certain,likely)+that2.sb.+v.(seem,happen,appear;issaid/known/reported)+todo=It+v.+thattodo不定式特殊用法5

不定式与主从复合句转换1.sb.+be+adj.(sure,certain,likely)+todo=It’s+adj.(sure,certain,likely)+that2.sb.+v.(seem,happen,appear;issaid/known/reported)+todo=It+v.+thattodo不定式特殊用法5

1.Heisknown_________(get)angryeasily.2.AIDSissaid____________(be)thebiggesthealthchallengetobothmenandwomeninthatareaoverthepastfewyears.3.Mr.Greenissaid____________(do)theexperimentwhichledtothenewdiscoveryinmedicine.tohavebeentogettohavedoneObserveandAnswerOnSundays,healwayshasalotofletterstowrite.attribute定语2.Helenisalways

thefirst___tocome___totheoffice.3.Doyouhaveanything___tosay___foryourself?6.Thomashadyearsofhardwork,littlefood,onlyacoldroom__tolivein____andneverhadamomenttorest. 19.Thereisnoneed___

tobecome____tooanxiousabouttheresultoftheexam.注：不定式做后置定语与其做修饰名词构成逻辑上的动宾关系、主谓关系以及同位关系（抽象名词之后）。高中阶段常用

todo做宾语的动词有：long,want,expect,hope,desire,refuse,agree,pretend,promise,aim,choose,decide,clai