初三英语动词不定式复习课件 .ppt

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1、Lesson31Theinfinitive(2)动词不定式（二）构成：to+do(动词原形)用法：用作宾语(v.+todo)Iwanttobuyacomputer.Shehopestofindabetterjob.Iwishtogowithyou.needtodolearntodoagreetodoplantododecidetodorefusetodobegintodostarttodotrytodoforgettodoremembertodoliketodoStoptodogoontodo2.用作宾语补足语：(v.+

2、sb.+todo)Sheaskedmetohelpher.Theteachertoldhimtocomeontime.Edison’smothertaughthimtoreadandwrite.wantsbtodowishsbtodogetsbtodoordersbtodofindsbtobelikesbtodowouldlikesbtodohelpsbtodo作宾语补足语不带to的情况：Letmedoit.Isawhimcrossthestreet.常见动词有：使役动词:let,make,have感官动词:see,wa

3、tch,hear,feel,listento比较：Iheardhersinginginthenextroom.Iheardhersinginthenextroom.3.用作状语(adverbial)：HecametoshowmehisnewCDplayer.Iwenttheretoseemyteacher.ShecamebacktogetherEnglishbook.Theboywastoofrightenedtomove.(目的)(目的)(目的)（结果）4.用作主语1.TobehereatChristmastimeis

4、mydream.2.Togoabroadishisdream.3.Tosayiseasy,todoisdifficult.（这时可将其用形式主语it来替换）ItismydreamtobehereatChristmastime.Itishisdreamtogoabroad.Itiseasytosay,itisdifficulttodo.5.用作表语Hisworkistofeedtheanimals.Herjobistolookafterthepatients.Mywishistobeascientist.6.用作定语Giv

5、emesomethingtodrink.Ihavetwobookstoread.Theyhavemuchfoodtoeat.（这时不定式与被修饰词有动宾关系。若是不及物动词，介词不能省略）Heaskedforaroomtolivein.Idon’thaveapentowritewith.Theiceishardenoughtoskateon.Heboughtatoytoplaywith.7.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

6、等。Whentostarthasnotbeendecided.Idon’tknowwhattodo.Hecantellyouwheretogetthebook.Thequestioniswho(m)toask.(主语)(宾语)(宾语补足语)(表语)比较（Compare）Idon’tknowwhattodo.Idon’tknowhowtodoit.Idon’tknowwhattodoaboutit.Exercises:1.--You’vedoneverywellthistime.--It’sreallykind______

7、__.A.foryoutosaysoB.foryousayingsoC.ofyoutosaysoD.ofyousayingso2.Itisbettertoloseone’slifethan_______.A.ifyouloseyourspiritB.losinghisspiritC.toloseone’sspiritD.yourspiritgettinglostCC3.–Ican’tworkinthisway.--Whynot_______itinsomeotherway?A.trytodoB.trydoingC.try

8、ingtodoD.tryingdoing4.Sinceyoufinditdifficult_______adecision,you’dbetteradiscussion(讨论)withyourparents.A.reach;haveB.reaching;haveC.reach;havingD.toreach;have