Todothatsortofthingisfoolish。Iwanttoseeyouthisevening.Allyouhavetodoistofinishitquickly.Wefoundahousetolivein.ShecameheretostudyEnglish.Iwarnedthepatientnottoeatcoldwateraftertheoperation.主语宾语表语定语状语宾补一、用法1.作主语2)用it作形式主语用不定式(It+be+adj./n.+todosth)3)例外：Itisnogood/nouse/nohelp+doingsth.Itisnousearguingaboutit.1)常用动名词LearningEnglishisveryimportant.ItisimportanttolearnEnglish.2.作宾语1)v+只跟todolearn/agree/ask/offer/happen/pretend/promise/plan/intend/hope/wish/decide/refuse/fail/manage…Shehopestofindabetterjob.Iwishtogowithyou.2)v+只跟doingfinish/complete/enjoy/mind/practise/consider/suggest/advise/miss/avoid/admit/deny/permit/allow/forbid/imagine/understand/include/risk/delay…keep(on)/giveup/insiston/succeedin/feellike/putoff/beworth/beusedto/lookforwardto…Ienjoyplayingbasketball.Shepractisesplayingthepianoforanhoureveryday.但是advise/consider/allow/permit/forbid/admitsbtodosthHeadvisedgoingonatriptoGuangzhou.HeadvisedustogoonatriptoGuangzhou.3)V+todo/doing区别不大。begin/start/like/love/hate/dislike…4)v+todo/doing区别很大forget/remember/stop/goonregret/try/mean/can’thelpneed/want/requiretrytodo努力做某事trydoing试着做某事regrettodo对要做的某事表示遗憾regretdoing对已做的某事表示后悔meantodo打算做meandoing意味着can’thelp(to)do不能帮忙做某事can’thelpdoing情不自禁做某事need/want/requiresthneed/want/requiredoing=sthneed/want/requiretobedone某事需要被做3.宾语补足语：1）ask类（v+sbtodosth）want/wish/order/like/wouldlike/helpforce/allow/permit/forbid/advise/consider…Sheaskedmetohelpher.Theteachertoldhimtocomeontime.2）感官动词类（V+sb.+dosth.）表整个过程see/hear/notice/find/watch/lookat/hear/listento/feel/smell…Ioftenhearthemsingthesonginthenextroom.Wewatchedthemplayfootball.Theteachermademeanswerthequestion.但这些动词用于被动结构时，省去的to要加上。Theywerelettosingapopsong.Hewasmadetoanswerthequestion.3）使役动词类（V+sb.+dosth.）make/let/have…1.Hewasmade_________.A.goB.goneC.goingD.togo2.Thoughhehadoftenmadehislittlesister_____,todayhewasmade_____byhislittlesister.A.cry；tocryB.crying；cryingB.cry；cryD.tocry；cry注意B.动词不定式的否定式只须在to前加not.Myfatherdecidednottotakeupthejob.Theteachertoldusnottobelateagain.注意C.带疑问词的动词不定式在to前加疑问词。Mr.Linwillteachushowtousethecomputer.Canyoutellmewheretogetthebook?注意D.作简短回答或避免不必要的重复时，动词不定式常常省去to后面的动词，只保留to。A:Wouldyouliketocometomyparty?Marywantedtousemybike,butIaskedhernotto(usemybike).B:Yes,I’dloveto(cometoyourparty).Mary想用我的自行车，但我叫她别用。4.作表语doing表习惯性动作；todo表将来一次性动作Mywishistobecomeascientist.MyjobisteachingyouEnglish.5.作状语不定式：作目的、结果（only之后）和原因（v./adj.之后）分词：作时间、条件、伴随、结果和原因（句首）不定式作目的状语：不定式用作目的状语时，其句意特点很明显，通常在译成中文时可用“为了”来表示。Tosaveclasstime,ourteacherhasusstudentsdohalfoftheexercisesinclassandcompletetheotherhalfforourhomework.Doctorsworkedthroughthenighttosavethelifeoftheinjuredman.不定式作结果状语onlyto结果却，不料竟会,enoughto足以，足够,too…to,neverto永不会ThattoolistooheavytoliftdirectlyThetemperatureishighenoughtochangewaterintosteam．Hewenthome,onlytofindthedooropenandeverythingwasgone.Heleft,nevertocomeback.—Cantheprojectbefinishedasplanned?—Sure,______itcompletedintime,we’llworktwomorehoursaday.A.havi...
