Overview:infinitive,verb-ing&verb-ed(I)非谓语动词过去分词:v-ed不定式:(to)dov-ing形式动名词现在分词Reviewthegeneralfunctionofnon-finiteverbs(Tick√or×)非谓语动词成分主语谓语宾语表语定语补语状语(to)do(不定式)v-ing(动名词)v-ing(现在分词)v-ed(过去分词)√××××√√√√√√√√√√√√√√√√√(一).不定式和动名词作主语I.不定式作主语时,可以用it作形式主语.1.Itisimportant______Tomtogetthatjob.2.Itiskind______youtohelpmewithmyEnglish.forof总结:Itis+adj.+for/ofsbtodosth的结构中,若此形容词是说明的是不定式的性质时,则用_____;若说明的是人(sb.)的特性,则用_____.1.Itisnice___youtohelpmewithmyEnglish.2.Itisnecessary________youtoimproveyourspokenEnglish.offorforofII.动名词作主语还有以下两个习惯表达法1.Itisnouse(good)+动名词做某事没用(不好)E.g:*It’snousecryingoverspiltmilk.____________________________。*在公共场合随地吐痰(spit)不好。____________________________.*未来的事无法知道。__________________________________.2.Thereisno+doing(动名词)(=Itisimpossibletodosth.)覆水难收It’snogoodspittinginpublicThereisnoknowingwhatmayhappen1.散步是锻炼的一种好方法。2.教这些孩子是我今天下午的工作。Walkingisagoodformofexercise.Toteachthesechildrenismyjobthisafternoon.III.动名词和不定式作主语的区别总结:不定式和动名词作主语的区别①todo作主语时常表示某一次具体的动作,具有偶然性;②doing(动名词)表示习惯性的动作,往往表抽象概念。注意:该规则同样适用于作宾语,表语.比如:liketodo/likedoing[Practice]---WhatdoyouthinkmadeMarysoupset?---_______hernewbike.A.AsshelostB.LostC.LosingD.BecauseoflosingC(二)不定式/动名词/分词作定语1.Shehasnopencil_______.A.towritewithB.towriteaboutC.towriteD.writein2.Shesaidshehadaimportantmeeting_____.A.toattendinB.toattendC.attendD.attendingAB★若作定语的动词不定式是vi,后必须要有介词I.不定式作定语3.Shewilltelluswhyshefeelssostronglythateachofushasarole___inmakingtheearthabetterplacetolive.A.tohaveplayedB.toplayC.tobeplayedD.tobeplayingB★不定式做定语时:(1).todo表示事情由句子主语自己做;(2).tobedone表示事情由别人做;4.I’mthirsty.Wouldyoupleasegivemesomething______.A.drunkB.todrinkC.tobedrunkD.fordrinking5.Heisalwaysthefirst______questions.A.toanswerB.answeringC.tobeansweredD.beingansweredBA★不定式常作不定代词和序数词的后置定语不定式作定语总结：1.若作定语的动词不定式是vi,后必须要有介词;2.(1).todo表示事情由句子主语自己做;(2).tobedone表示事情由别人做;3.不定式常作不定代词和序数词的后置定语。II.动名词与现在分词作定语的区别[总结]:(1)动名词作定语表示所修饰的名词的功能或用途,可用for改写；(2)现在分词作定语表示“主动/正在进行”或“令人感觉……”可用定语从句改写。swimmingpool,waitingroom,walkingstickasleepingcar=acar___________asleepingchild=achild______________forsleepingwhoissleepingIII.现在分词和过去分词作定语飘雪__________________落叶_______________________Theundergroundsystem_________(build)nowinthecitywillbeopennextyear.[总结]:v-ing现在分词作定语:____________________________________________v-ed过去分词作定语:_________________________________________________fallingsnowfallenleavesbeingbuilt表示“主动，正在进行//令人感觉怎么样”表示“被动，已完成//人自身感觉怎么样”[Practice]1.Thecourthearsabout120casesayearandvisitorsarewelcometoseeacase______.A.arguedB.tobearguedC.tobearguingD.beingargued2.Anyone_______bags,boxes,orwhatever,wasstoppedbythepolice.A.seencarryB.seencarryingC.sawtocarryD.sawcarrying3.Welookedeverywhereforthekeys,buttheywerenowhere_______.A.tofindB.tohavefoundC.tobefoundD.beingfound...
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