高中动词不定式详细讲解课件

高中动词不定式详细讲解高中动词不定式详细讲解高中动词不定式详细讲解三非谓语动词所表示的动作与谓语动词表示的动作的先后关系是什么？弄清非谓语动词表示的动作与谓语动词表示的动作之间的先后关系是解题的关键所在在谓语表示的动作之后与谓语表示的动作同时发生在谓语表示的动作之前todo/tobedonetodo/tobedone/tobedoing;doing/beingdone;done;tohavedone/tohavebeendone;havingdone/havingbeendone高中动词不定式详细讲解高中动词不定式详细讲解高中动词不定式详1

三非谓语动词所表示的动作与谓语动词表示的动作的先后关系是什么？

弄清非谓语动词表示的动作与谓语动词表示的动作之间的先后关系是解题的关键所在

非谓语表示的动作

非谓语动词的形式在谓语表示的动作之后与谓语表示的动作同时发生在谓语表示的动作之前todo/tobedonetodo/tobedone/tobedoing;doing/beingdone;

done;tohavedone/tohavebeendone;havingdone/havingbeendone三非谓语动词所表示的动作与谓语动词表示的动作的先后关2非谓语动词动名词分词不定式现在分词过去分词非动名词分词不定式现在分词过去分词3动词不定式动词不定式4不定式:是一种非限定性动词。1.非限定动词:是指那些在句中不能单独充当谓语的动词，2.动词不定式在句中可以作句子除谓语之外的任何句子成分。3.动词不定式的被动形式除了一般形式外还有其完成式和进行式。不定式:是一种非限定性动词。5

一.基本形式：

to+动词原形二.其否定形式是:“not/nevertodo”/notdo.三.不定式可以带宾语或状语构成不定式短语，没有人称和数的变化。不定式的构成:一.基本形式：to+动词原形不定式的构成:6肯定：to+V.原或者(to)+V.原否定：not/never+(to)+V.原

Helikestoreadnovels.Isawhimcome.Wedecidednottobuythathouse.4)Itisinterestingtoflyakite.

5)Pleaselethimnotgothere.动词不定式的结构肯定：to+V.原或者(to)+V.原H7（2）特点：

A.没有人称和数的变化C.有时态和语态的变化（被动语态的形式为tobe+动词过去分词）B.可以有自己的宾语和状语

动词不定式（2）特点：C.有时态和语态的变化（被动语态的形式81.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7.作独立成分8.与疑问词等连用1.作主语2.作宾语3.作宾语补足语4.作定语5.9动词不定式Todothatsortofthingisfoolish。Iwanttoseeyouthisevening.Allyouhavetodoistofinishitquickly.Wefoundahousetolivein.ShecameheretostudyEnglish.

Iwarnedthepatientnottoeatcoldwater

aftertheoperation.

主语

宾语表语

定语

状语

宾补英语博客网动词不定式Todothatsortofthing10结构

:todo(否定)not/nevertodo二.

时态与语态主动语态被动语态一般式进行式完成式完成进行式不定式

todo

tobedone

tobedoing

tohavedone

tohavebeendone

tohavebeendoing--------------------结构:todo二.时态与语态主动语态被动语态一般式11(1).Theypretendednottoseeus.(2).Hepretendedtobesleeping.(3).Shepretendedtohaveknownitbefore.(一般式表示与谓语的动作同时/几乎/发生在它之后.)(在谓语动词发生的同时,不定式的动作也正在进行)(完成式表示动作发生在谓语动作之前)(4).We’rehappytohavebeenworkingwith

you.(完成进行式表示谓语动作发生之前,不定式的动作一直在进行而且可能之后也继续)(1).Theypretendednottosee12三.用法/功能Toseeistobelieve.It’simportanttolearnEnglishwell.(1).主语1.单个不定式作主语时,谓语动词用单数2.不定式作主语时,往往放在谓语之后,用it作形式主语.三.用法/功能Toseeistobelieve.13三.用法/功能Toseeistobelieve.It’simportanttolearn.(1).主语不定式作主语时,往往放在谓语之后,用it作形式主语.三.用法/功能Toseeistobelieve.14It+be+adj.+for/ofsb.todosth.

for:adj.多为描述不定式行为的特征（important/necessary/interesting等.）of:adj.多为

描述主语的品质特征（kind/nice/friendly/wise/foolish等.）

作主语Itiseasy_______hertolearnEnglishwell.Itisclever________youtosolvetheproblem.offorIt+be+adj.+for/ofsb.tod155、轮到我们打扫教室了。

Itisourturn_________________________6、Towastetimeistoshortenlife.（翻译成中文）

tocleantheclassroom.浪费时间就是缩短生命。练习tocleantheclassroom.浪费时间就是161、主语+be+todosth

主语多为

duty/wish/hope/idea/plan/ambition/dream/work/job等

名词

1、Mydreamistobeasinger.2、Hisworkistocleantheclassroomeveryday.作表语我的梦想是成为一名歌手。他的工作是每天清扫教室。1、主语+be+todosth1、Mydre171、动词+todosth.常用动词有：want/wish/like/wouldlike/hope/plan/try/decide/learn/need/agree/begin/start/forget/remember/manage/seem/fail/manage/promise等

1、Ihopetofinishittomorrow.2、Sheplanstogoandteachinthecountry.作宾语1、动词+todosth.1、Ihopetof181、Don’tforget_________________.(关灯)2、Ihappened________whenhecalledme.（出去）3、Idon’twant________________.(依赖别人）4、Samislearning________________.(怎样开车）5、Wepromise__________theenvironment.(保护)toturnoffthelighttogoouttodependonothershowtodriveacar练习toprotect1、Don’tforget_______________191、动词+宾语（sb./sth.)+todosth.1、Theteacheraskedhertoanswerthequestion.2、Thedoctortoldmetohaveagoodrest.作宾补-对宾语进行补充说明

常用动词有：ask,tell,allow,want等1、动词+宾语（sb./sth.)+todost20Theteachertoldmetocleantheblackboard.Iexpectyoutogivemesomehelp.(4).宾补五看

watch

see

lookat

observe

notice三使

let

make

have

二听

listento

hear一感觉:

feelwarn,tell,allow,help,ask,force等Theteachertoldmetocleant21e.g.Imadehimdohiswork.Hewasmadetodohiswork(byme).注意1>help后面的“to”可省去e.g.Theyoftenhelpthegrandma(to)carrywater.2>see,hear,watch,feel,notice,lookat等表示感觉和let,make,have等表示使役的动词后面，不定式作宾语时要省“to”（注：被动语态不省to）e.g.Imadehimdohiswork.He22典型例题1)----Iusuallygotherebytrain.

----Whynot___byboatforachange?

A.totrygoing

B.

tryingtogo

C.

totryandgo

D.

trygoing

答案：D.whynot后面接不带to的不定式，因此选D。2)Pauldoesn'thavetobemade___.Healwaysworkshard.

A.learn

B.tolearn

C.learned

D.learning答案：B.make后接不带to的动词不定式，当其用于被动时，to不可省略。典型例题233>不定式用在介词but,except,besides后时,如果这些介词前有行为动词do的各种形式,那么介词后的不定式不带to,相反则带to.(1).Shecoulddonothingbutcry.(2).Ihavenochoicebuttogo.(3).Whatdoyouliketodo

besidessleep.3>不定式用在介词but,except,besides241、Lethim_______theworkatonce.(finish/tofinish)2、Doyoulikelisteningtootherpeople______?(talk/talking/totalk)3、Jimwasseen_________theroom.(enter/toenter)4、Pleasetellher_________hereontime.(come/tocome)finishtalktoentertocome练习1、Lethim_______theworkat255、I’llhelpyou_________thisproblem.(tosolve/solve)6、Iwishyouwillstaywithus.(改成简单句）7、Herstorymadeuslaugh.(改成被动句）(to)solveIwishyoutostaywithus.Weweremadetolaughbyherstory.5、I’llhelpyou_________this26放在被修饰词的后面Ihavealotofworktodo.Iwanttofindsomethingtodrink.作定语不定式为不及物动词时后面应有必要的介词。I’mlookingforahotel_________.A.stayB.stayatC.tostayD.tostayatD位置：放在被修饰词的后面Ihavealotofwork27Ihavesomethingtosay.Hehasalotofhomeworktodo.Heislookingforaroomtolivein.Thereisnothingtoworryabout.(5).定语(如果不定式中的动词是不及物动词,则不定式中要有介词.)请给我一支写字的笔.Pleasegivemeapentowritewith.Ihavesomethingtosay.(5).定286.作定语(后置）1.Doyouhaveanythingmore_______﹙要说﹚?2.Shehasalotofwork_______﹙做﹚everyday.3.Theoldmanhasahouse_________﹙住﹚.4.Sheisaniceperson__________﹙共事﹚.tosay

todotoliveintoworkwith6.作定语(后置）tosaytodotolive294.something,anything,nothing,everything等复合不定代词常用不定式做后置定语。e.g.Doyouhaveanythingtosend?你有什么东西要寄吗4.something,anything,nothin30Icameheretoseeyou.Hegotupearlytocatchthetrain.(6)状语（表示目的或结果）inorderto,

soasto,enoughto,onlyto,too….to.,在一些短语中也有体现Icameheretoseeyou.(6)状语（31(8)“疑问词＋不定式”用法

1.

不定式前可带what，who，which，where,when,how,whose,等疑问词,这种不定式短语在句中作宾语、宾语补足语、主语等。例:Hedidn’ttellmewheretogo.(直宾)Idon’tknowwhattosaynow.(宾语)Idon'tknowwhattodonext.(宾语）Hetaughtushowtousethecomputer．(宾语补足语)返回(8)“疑问词＋不定式”用法返回32注意：在与why连用时，只用于why或whynot开头的简短疑问句中，后面紧跟的动词不定式不带to。

Whynothavearest?注意：在与why连用时，只用于why或whynot开头的简33(7).独立结构tobefrank,tobehonest,Totellthetruth,Idon’tagreewithyou.类似的结构(7).独立结构tobefrank,Totellt34关于不定式中的小品词to(1).不定式中的动词上文已出现过,下文要省略该动词.eg:Wouldyouliketogowithme?I’dliketo.(2).不定式是tobe结构,be不可省.eg:Wouldyouliketobeateacher?I’dliketobe.关于不定式中的小品词to(1).不定式中的动词上文已出现351、习惯于beusedto_______

被用于beusedto_______Waterisusedto_____(put)outfires.Iamusedto_______(take)awalkaftersupper.2、prefer…to…比起……来更喜欢

比起游泳来，我更喜欢跑步。Iprefer________to___________.介词to

与不定式to

的区别puttakingrunningswimmingdodoing1、习惯于beusedto_______介词to36AllIdidwastogivehimsomeadvice.Hisdreamistotravelallovertheworld.

Lucyneedsafriendtoplaywith.Hewasthelastguesttoarrive.It’sinterestingtoreadasciencefiction.下列不定式作何种成分？（表语）（表语）（定语）（定语）（主语）AllIdidwastogivehimsome37Hewasgladtoseeyou.

Myfatherofferedtobuyacomputerforme.

HeintervieweddetectiveKentogetsomeinformation.

Thedoctoraskedhimtohavemorefruitandvegetables.（状语）（宾语）（状语）（宾语补足语）下列不定式作何种成分？Hewasgladtoseeyou.（状语）（宾38

1、stoptodosth.停下正在做的事去作另一件事

stopdoingsth.停止正在作的事

eg.Whentheteachercameintotheclassroom,thestudentsstoppedtalking.Afterheworkedforanhour,hestoppedtohavearest.2、forget/remembertodosth.忘记/记得要去作某事

forget/rememberdoingsth.忘记记得曾经做过某事

eg.Pleaseremembertobringmybooktoschool.

Irememberdoingmyhomework

同义词比较同义词比较39一、常使用动词不定式的短语

1、It’stimetodosth.\It’stimeforsth该作某事的时候了.

2、can’twaittodosth.迫不及待要作某事

3、ask/tellesb.(not)todosth.要求/告诉某人(不)作某事

4、allowsb.todosth.允许某人作某事

5、besupposedtodosth.应该作某事

6、Wouldlike/want(sb.)todosth.

想要作某事

中考重点句型中考重点句型40exerciseexercise41Myteacherwasmade_____histeachingbecauseofpoorhealth.givingupB.togiveupC.giveupD.givenup2.Thesentencewants____oncemore.explainedB.toexplainC.beingexplainedD.explaining3.TheArcticisconsidered____thenorthernpartoftheAtlantic.havingbeenB.tohavebeenC.tobeD.beingDBCMyteacherwasmade_____his424.TheEmperororderedthewonderfulcloth_____forhimwithoutdelay.tohavewovenB.tobewovenC.tobeweavingD.toweave5.IfoundtheGermanlanguagehard____.learnedB.learningC.tobelearnedD.tolearn6.—Thelightintheofficeisstillon.---Oh,Iforgot______.turningitoffB.turnitoffC.toturnitoffD.havingturneditoffBDC4.TheEmperororderedthewond43几对易混淆的词组：stoptodosth.停止去做某事

doingsth.停止正在做．．．forgettodosth.忘记去做．．．

doingsth.忘记已做了．．．remembertodosth.记得去做．．．

doingsth.记得曾经做．．．几对易混淆的词组：447.---Howdoyoudealwiththedisagreementbetweenthecompanyandthecustomers?---Thekey____theproblemistomeetthedemand____bythecustomers.tosolving,makingB.tosolving,madeC.tosolve,makingD.tosolve,made8.---Whatdoyouthinkoftheschool?----Itisaverygood_____.schooltostudyinB.schoolforchildrentostudyC.studyingschoolD.schooltostudyBA7.---Howdoyoudealwiththe459.---Didyougetajob?---No,I___,butit’snouse.expectedB.triedtoC.managedtoD.planned10.Wefinditimpossibleforthework___aheadoftime.tofinishB.finishingC.beingfinishedD.tobefinished11.---IusuallygotoShanghaibytrain.----Whynot___therebyboatforachange?totrytogoB.trygoingC.totrygoingD.trytogoBDB9.---Didyougetajob?BDB4612.___aliving,shehadtoworkfrommorningtillnight.TomakeB.MadeC.MakingD.Tohavemade13.Iwouldratherstarvetodeaththan___forfood.begB.beggingC.beggedD.tobeg14.Theboypretended____whenhismotherentered.readingB.toreadC.tobereadingD.beingreadAAC12.___aliving,shehadtowo47ExerciseExercise481.Robertissaid____abroad,butIdon’tknowwhatcountryhestudiedin.tohavestudiedB.tostudyC.tobestudyingD.tohavebeenstudying2.Thepurposeofnewtechnologiesistomakelifeeasier,____itmoredifficult.notmakeB.nottomakeC.notmakingD.don’tmake3.I’veworkedwithchildrenbefore,soIknowwhat____inmynewjob.expectedB.toexpectC.tobeexpectingD.expects1.Robertissaid____abroad,494.Havingatripabroadiscertainlygoodfortheoldcouple,butitremains____whethertheywillenjoyit.toseeB.tobeseenC.seeingD.see5.ItissaidinAustraliathereismorelandthanthegovernmentknows____.itwhattodowithB.whattodowithitC.whattodoitwithD.todowhatwithit6.Themotherdidn’tknow____toblameforthebrokenglassasithappenedwhileshewasout.A.whoB.whenC.howD.why4.Havingatripabroadiscer507.Pauldoesn’thavetobemade____.Healwaysworkshard.A.learnB.tolearnC.learned D.learning8.Weagreed____herebutsofarshehasn’tturnedupyet.A.havingmetB.meetingC.tomeetD.tohavemet9.Theboywantedtoridehisbicycleinthestreet,buthismothertoldhim____.A.nottoB.nottodoC.notdoitD.donotto7.Pauldoesn’thavetobemad5110.Thepatientwaswarned____oilyfoodaftertheoperation.A.toeatnotB.eatingnotC.nottoeatD.noteating11.Iwouldlove____tothepartylastnightbutIhadtoworkextrahourstofinishareport.A.togoB.tohavegoneC.goingD.havinggone12.CharlesBabbageisgenerallyconsidered____thefirstcomputer.A.toinventB.inventingC.tohaveinventedD.havinginvented10.Thepatientwaswarned___5213.LittleJimshouldlove____tothetheatrethisevening.A.tobetakenB.totakeC.beingtakenD.taking14.____lateintheafternoon,Bobturnedoffthealarm.A.TosleepB.SleepingC.SleepD.Havingsleep15.Theteacheraskedus____somuchnoise.A.don’tmakeB.notmakeC.notmakingD.nottomake13.LittleJimshouldlove___531爱和被爱都是最大的幸福。_______________arebothgreathappiness.2中国人民决不会征服。TheChinesepeoplerefuse_________________3据说他已经完成了他的工作。Heissaid__________________________.4根据报道他们已安全到达。Theyarereported____________________Toloveandtobelovedtogivein/beconqueredtohavefinished/completedhisworktohavearrivedsafely1爱和被爱都是最大的幸福。Toloveandtobe545我想叫人立刻修理这辆自行车。Iwantthisbike___________________________.6玛利仿佛已经告诉这件事了。Maryseemed_____________________________.7众所周知，奥运会上他被授予了一枚金牌。Heisknown________________agoldmedalattheOlympic.toberepairedatonce/immediatelytohavebeentoldaboutittohavebeengiven5我想叫人立刻修理这辆自行车。toberepaired55不定式的特殊句型too…to…1)too…to太…以至于…Heistooexcitedtospeak.他太激动了，说不出话来。----CanIhelpyou?需要我帮忙吗?----Well,I'mafraidtheboxistooheavyforyoutocarryit,butthankyouallthesame.不用了。这箱子太重，恐怕你搬不动。谢谢您。2)如在too前有否定词，则整个句子用否定词表达肯定，too后那个词表达一种委婉含义，意为"不太"。It'snevertoolatetomend.

(谚语)改过不嫌晚。3)当too前面有only,all,but时，意思是：非常…等于very。。不定式的特殊句型too…to…561.Johnwasmade_____thetruckforaweekasapunishment.

A.towashB.washingC.washD.tobewashing

2.Tellhim_______thewindow.

A.toshutnotB.nottoshutC.tonotshutD.notshut

3.MrsSmithwarnedherdaughter________afterdrinking.

A.nevertodriveB.toneverdrive

C.neverdrivingD.neverdrive

4.Thoughhehadoftenmadehislittlesister_____,todayhewasmade_____byhislittlesister.

A.cry；tocryB.crying；cryingC.cry；cryD.tocry；cry

5.Iwouldlove______tothepartylastnightbutIhadtoworkextrahourstofinishareport.

A.togoB.tohavegoneC.goingD.havinggone

ABAAATest1.Johnwasmade_____thetru57谢谢观赏谢谢观赏58高中动词不定式详细讲解高中动词不定式详细讲解高中动词不定式详细讲解三非谓语动词所表示的动作与谓语动词表示的动作的先后关系是什么？弄清非谓语动词表示的动作与谓语动词表示的动作之间的先后关系是解题的关键所在在谓语表示的动作之后与谓语表示的动作同时发生在谓语表示的动作之前todo/tobedonetodo/tobedone/tobedoing;doing/beingdone;done;tohavedone/tohavebeendone;havingdone/havingbeendone高中动词不定式详细讲解高中动词不定式详细讲解高中动词不定式详59

三非谓语动词所表示的动作与谓语动词表示的动作的先后关系是什么？

弄清非谓语动词表示的动作与谓语动词表示的动作之间的先后关系是解题的关键所在

非谓语表示的动作

非谓语动词的形式在谓语表示的动作之后与谓语表示的动作同时发生在谓语表示的动作之前todo/tobedonetodo/tobedone/tobedoing;doing/beingdone;

done;tohavedone/tohavebeendone;havingdone/havingbeendone三非谓语动词所表示的动作与谓语动词表示的动作的先后关60非谓语动词动名词分词不定式现在分词过去分词非动名词分词不定式现在分词过去分词61动词不定式动词不定式62不定式:是一种非限定性动词。1.非限定动词:是指那些在句中不能单独充当谓语的动词，2.动词不定式在句中可以作句子除谓语之外的任何句子成分。3.动词不定式的被动形式除了一般形式外还有其完成式和进行式。不定式:是一种非限定性动词。63

一.基本形式：

to+动词原形二.其否定形式是:“not/nevertodo”/notdo.三.不定式可以带宾语或状语构成不定式短语，没有人称和数的变化。不定式的构成:一.基本形式：to+动词原形不定式的构成:64肯定：to+V.原或者(to)+V.原否定：not/never+(to)+V.原

Helikestoreadnovels.Isawhimcome.Wedecidednottobuythathouse.4)Itisinterestingtoflyakite.

5)Pleaselethimnotgothere.动词不定式的结构肯定：to+V.原或者(to)+V.原H65（2）特点：

A.没有人称和数的变化C.有时态和语态的变化（被动语态的形式为tobe+动词过去分词）B.可以有自己的宾语和状语

动词不定式（2）特点：C.有时态和语态的变化（被动语态的形式661.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7.作独立成分8.与疑问词等连用1.作主语2.作宾语3.作宾语补足语4.作定语5.67动词不定式Todothatsortofthingisfoolish。Iwanttoseeyouthisevening.Allyouhavetodoistofinishitquickly.Wefoundahousetolivein.ShecameheretostudyEnglish.

Iwarnedthepatientnottoeatcoldwater

aftertheoperation.

主语

宾语表语

定语

状语

宾补英语博客网动词不定式Todothatsortofthing68结构

:todo(否定)not/nevertodo二.

时态与语态主动语态被动语态一般式进行式完成式完成进行式不定式

todo

tobedone

tobedoing

tohavedone

tohavebeendone

tohavebeendoing--------------------结构:todo二.时态与语态主动语态被动语态一般式69(1).Theypretendednottoseeus.(2).Hepretendedtobesleeping.(3).Shepretendedtohaveknownitbefore.(一般式表示与谓语的动作同时/几乎/发生在它之后.)(在谓语动词发生的同时,不定式的动作也正在进行)(完成式表示动作发生在谓语动作之前)(4).We’rehappytohavebeenworkingwith

you.(完成进行式表示谓语动作发生之前,不定式的动作一直在进行而且可能之后也继续)(1).Theypretendednottosee70三.用法/功能Toseeistobelieve.It’simportanttolearnEnglishwell.(1).主语1.单个不定式作主语时,谓语动词用单数2.不定式作主语时,往往放在谓语之后,用it作形式主语.三.用法/功能Toseeistobelieve.71三.用法/功能Toseeistobelieve.It’simportanttolearn.(1).主语不定式作主语时,往往放在谓语之后,用it作形式主语.三.用法/功能Toseeistobelieve.72It+be+adj.+for/ofsb.todosth.

for:adj.多为描述不定式行为的特征（important/necessary/interesting等.）of:adj.多为

描述主语的品质特征（kind/nice/friendly/wise/foolish等.）

作主语Itiseasy_______hertolearnEnglishwell.Itisclever________youtosolvetheproblem.offorIt+be+adj.+for/ofsb.tod735、轮到我们打扫教室了。

Itisourturn_________________________6、Towastetimeistoshortenlife.（翻译成中文）

tocleantheclassroom.浪费时间就是缩短生命。练习tocleantheclassroom.浪费时间就是741、主语+be+todosth

主语多为

duty/wish/hope/idea/plan/ambition/dream/work/job等

名词

1、Mydreamistobeasinger.2、Hisworkistocleantheclassroomeveryday.作表语我的梦想是成为一名歌手。他的工作是每天清扫教室。1、主语+be+todosth1、Mydre751、动词+todosth.常用动词有：want/wish/like/wouldlike/hope/plan/try/decide/learn/need/agree/begin/start/forget/remember/manage/seem/fail/manage/promise等

1、Ihopetofinishittomorrow.2、Sheplanstogoandteachinthecountry.作宾语1、动词+todosth.1、Ihopetof761、Don’tforget_________________.(关灯)2、Ihappened________whenhecalledme.（出去）3、Idon’twant________________.(依赖别人）4、Samislearning________________.(怎样开车）5、Wepromise__________theenvironment.(保护)toturnoffthelighttogoouttodependonothershowtodriveacar练习toprotect1、Don’tforget_______________771、动词+宾语（sb./sth.)+todosth.1、Theteacheraskedhertoanswerthequestion.2、Thedoctortoldmetohaveagoodrest.作宾补-对宾语进行补充说明

常用动词有：ask,tell,allow,want等1、动词+宾语（sb./sth.)+todost78Theteachertoldmetocleantheblackboard.Iexpectyoutogivemesomehelp.(4).宾补五看

watch

see

lookat

observe

notice三使

let

make

have

二听

listento

hear一感觉:

feelwarn,tell,allow,help,ask,force等Theteachertoldmetocleant79e.g.Imadehimdohiswork.Hewasmadetodohiswork(byme).注意1>help后面的“to”可省去e.g.Theyoftenhelpthegrandma(to)carrywater.2>see,hear,watch,feel,notice,lookat等表示感觉和let,make,have等表示使役的动词后面，不定式作宾语时要省“to”（注：被动语态不省to）e.g.Imadehimdohiswork.He80典型例题1)----Iusuallygotherebytrain.

----Whynot___byboatforachange?

A.totrygoing

B.

tryingtogo

C.

totryandgo

D.

trygoing

答案：D.whynot后面接不带to的不定式，因此选D。2)Pauldoesn'thavetobemade___.Healwaysworkshard.

A.learn

B.tolearn

C.learned

D.learning答案：B.make后接不带to的动词不定式，当其用于被动时，to不可省略。典型例题813>不定式用在介词but,except,besides后时,如果这些介词前有行为动词do的各种形式,那么介词后的不定式不带to,相反则带to.(1).Shecoulddonothingbutcry.(2).Ihavenochoicebuttogo.(3).Whatdoyouliketodo

besidessleep.3>不定式用在介词but,except,besides821、Lethim_______theworkatonce.(finish/tofinish)2、Doyoulikelisteningtootherpeople______?(talk/talking/totalk)3、Jimwasseen_________theroom.(enter/toenter)4、Pleasetellher_________hereontime.(come/tocome)finishtalktoentertocome练习1、Lethim_______theworkat835、I’llhelpyou_________thisproblem.(tosolve/solve)6、Iwishyouwillstaywithus.(改成简单句）7、Herstorymadeuslaugh.(改成被动句）(to)solveIwishyoutostaywithus.Weweremadetolaughbyherstory.5、I’llhelpyou_________this84放在被修饰词的后面Ihavealotofworktodo.Iwanttofindsomethingtodrink.作定语不定式为不及物动词时后面应有必要的介词。I’mlookingforahotel_________.A.stayB.stayatC.tostayD.tostayatD位置：放在被修饰词的后面Ihavealotofwork85Ihavesomethingtosay.Hehasalotofhomeworktodo.Heislookingforaroomtolivein.Thereisnothingtoworryabout.(5).定语(如果不定式中的动词是不及物动词,则不定式中要有介词.)请给我一支写字的笔.Pleasegivemeapentowritewith.Ihavesomethingtosay.(5).定866.作定语(后置）1.Doyouhaveanythingmore_______﹙要说﹚?2.Shehasalotofwork_______﹙做﹚everyday.3.Theoldmanhasahouse_________﹙住﹚.4.Sheisaniceperson__________﹙共事﹚.tosay

todotoliveintoworkwith6.作定语(后置）tosaytodotolive874.something,anything,nothing,everything等复合不定代词常用不定式做后置定语。e.g.Doyouhaveanythingtosend?你有什么东西要寄吗4.something,anything,nothin88Icameheretoseeyou.Hegotupearlytocatchthetrain.(6)状语（表示目的或结果）inorderto,

soasto,enoughto,onlyto,too….to.,在一些短语中也有体现Icameheretoseeyou.(6)状语（89(8)“疑问词＋不定式”用法

1.

不定式前可带what，who，which，where,when,how,whose,等疑问词,这种不定式短语在句中作宾语、宾语补足语、主语等。例:Hedidn’ttellmewheretogo.(直宾)Idon’tknowwhattosaynow.(宾语)Idon'tknowwhattodonext.(宾语）Hetaughtushowtousethecomputer．(宾语补足语)返回(8)“疑问词＋不定式”用法返回90注意：在与why连用时，只用于why或whynot开头的简短疑问句中，后面紧跟的动词不定式不带to。

Whynothavearest?注意：在与why连用时，只用于why或whynot开头的简91(7).独立结构tobefrank,tobehonest,Totellthetruth,Idon’tagreewithyou.类似的结构(7).独立结构tobefrank,Totellt92关于不定式中的小品词to(1).不定式中的动词上文已出现过,下文要省略该动词.eg:Wouldyouliketogowithme?I’dliketo.(2).不定式是tobe结构,be不可省.eg:Wouldyouliketobeateacher?I’dliketobe.关于不定式中的小品词to(1).不定式中的动词上文已出现931、习惯于beusedto_______

被用于beusedto_______Waterisusedto_____(put)outfires.Iamusedto_______(take)awalkaftersupper.2、prefer…to…比起……来更喜欢

比起游泳来，我更喜欢跑步。Iprefer________to___________.介词to

与不定式to

的区别puttakingrunningswimmingdodoing1、习惯于beusedto_______介词to94AllIdidwastogivehimsomeadvice.Hisdreamistotravelallovertheworld.

Lucyneedsafriendtoplaywith.Hewasthelastguesttoarrive.It’sinterestingtoreadasciencefiction.下列不定式作何种成分？（表语）（表语）（定语）（定语）（主语）AllIdidwastogivehimsome95Hewasgladtoseeyou.

Myfatherofferedtobuyacomputerforme.

HeintervieweddetectiveKentogetsomeinformation.

Thedoctoraskedhimtohavemorefruitandvegetables.（状语）（宾语）（状语）（宾语补足语）下列不定式作何种成分？Hewasgladtoseeyou.（状语）（宾96

1、stoptodosth.停下正在做的事去作另一件事

stopdoingsth.停止正在作的事

eg.Whentheteachercameintotheclassroom,thestudentsstoppedtalking.Afterheworkedforanhour,hestoppedtohavearest.2、forget/remembertodosth.忘记/记得要去作某事

forget/rememberdoingsth.忘记记得曾经做过某事

eg.Pleaseremembertobringmybooktoschool.

Irememberdoingmyhomework

同义词比较同义词比较97一、常使用动词不定式的短语

1、It’stimetodosth.\It’stimeforsth该作某事的时候了.

2、can’twaittodosth.迫不及待要作某事

3、ask/tellesb.(not)todosth.要求/告诉某人(不)作某事

4、allowsb.todosth.允许某人作某事

5、besupposedtodosth.应该作某事

6、Wouldlike/want(sb.)todosth.

想要作某事

中考重点句型中考重点句型98exerciseexercise99Myteacherwasmade_____histeachingbecauseofpoorhealth.givingupB.togiveupC.giveupD.givenup2.Thesentencewants____oncemore.explainedB.toexplainC.beingexplainedD.explaining3.TheArcticisconsidered____thenorthernpartoftheAtlantic.havingbeenB.tohavebeenC.tobeD.beingDBCMyteacherwasmade_____his1004.TheEmperororderedthewonderfulcloth_____forhimwithoutdelay.tohavewovenB.tobewovenC.tobeweavingD.toweave5.IfoundtheGerman