动词不定式-复习教学课件

动词不定式九年级英语语法复习教学课件,主讲人：黄牛蹄中学田忠勤,动词不定式(to+v.),概述：动词不定式todo没有人称和数的变化，在句中不能独立作谓语，可以在句子中作宾语、宾语补足语、状语、定语、主语、表语等。其否定式为：nottodo,如果不定式动词为不及物动词，后面的介词千万不要省略如：Ihavesomethingimportanttotellyou.Maybetheyhavethreeroomstolivein.,(1)作定语,与被修饰词有主谓关系如：MrLiisalwaysthefirsttocomeandthelasttoleave.,通常在agree，begin，choose，come，decide，expect，hope，fail，forget，happen，help，learn，like，love，mean，try，manage，offer，remember，plan，prepare，promise，refuse，want，wait，wish等后加todosth.做宾语。,(2)作宾语,eg:IhavedecidedtogotoXinhuaPrimarySchool.,你知道有哪些动词后面可以跟动词不定式作宾语吗？说说看：,eg:Myideaistoringhimupatonce.Myfathersjobistomakesickpeoplebetter.,(3)作表语,通常加在wish,hope,idea,job等词后作表语。,动词help接动词不定式作宾语补足语，可带to也可不带to。如：Canyouhelpme(to)carrytheheavybag?,(4)作宾语补足语,动词+宾语+不定式allow，ask,beg,choose,expect,invite,tell,want,wish，等动词后接动词不定式作宾语补足语。如：Thepolicemenaskedhimtogetoffthebus.,hear,see,feel,watch,notice,let,make,have等动词后接不带to的动词不定式作宾语补足语。如：WeoftenseeMissLicleantheclassroom.Inthosedaysthebossesoftenmadetheworkersworkdayandnight.,eg:TolearnEnglishisveryimportant.,(5)作主语,=ItsveryimportanttolearnEnglish.,形容词good,bad,polite,friendly,kind,foolishclever,right,wrong,careful等用“Itis+adj+ofsb.todosth.”其他形容词用for。,常用“Itis+adj+for/ofsb.todosth”的句式,如：Itsdangerousforyoutoridesofast.Itsverykindofyoutohelpme.,表示目的、原因、方法、方向、结果等,(6)作状语,如：Illgotomeetmyfriendattherailwaystation.,Heranfastenoughtocatchthebus.Sheistootiredtogofarther.,(二)动词不定式的否定式：,nottodo,Theteachertoldthechildrennottoplaywithfire.,Theywarnthechildrennottoplayfootballinthestreet.,TherearesomanykindsofradiosonsalethatIcantmakeupmymindwhichkindtochoose.TherearesomanykindsofradiosonsalethatIcantmakeupmymindwhichkindIshouldchoose.,(三)动词不定式与疑问句who,what,which,when,how,where,whether等连用,相当于一个从句。,常见词：decide,know,forget,learn,remember,show,understand,see,wonder,hear,explain,tell，findout,makeuponesmind等,如：Idontknowwhentostart.Idontknowwhenwellstart.,特殊的非谓语动词,(1)可接不定式，也可接动词的-ing形式的动词意义差别较大的有：forget,remember,stop,goon等。Heforgottoposttheletter.Heforgotpostingtheletter.Theystoppedtosingasong.Theystoppedsinging.意义有差别的有：watch,see,hear,notice,feel,like,(2)只能接动词的-ing形式的动词或动词短语enjoy,finish,keep,mind,practise,suggest,bebusy,giveup,lookforwardto,preferto等。如：ThestudentsarebusypickingappleWouldyoumindmyopeningthedoor?,中考链接,1.Itshappyforme_(have)thebike.2.Theyprefer_(stay)athomeratherthangoout.3.Heisoldenough_(join)thearmy.4.Hisbossmadehim_(finish)theworkafterfive.5.Hisplanis_(spend)hersummerinShanghai.6.Haveyougotanything_(say)?7.Doyouknowwhen_(start)ourwork?8.Hewentout_(carry)thebigbag.9._(do)thehomeworkatschoolisourduty.10.Mrlitoldme_(clean)theclassroomafterclass.,tohave,tostay,tojoin,finish,tospend,tosay,tostart,to