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V-ing形式非谓语动词---动名词2.英语一句话中只能有一个谓语动词。若有两个或两个以上的动词则要考虑用以下三种形式：◇连词◇从句◇非谓语动词1.非谓语动词:也就是不能用作谓语的动词。非谓语动词不定式动名词分词现在分词过去分词动名词由动词+ing构成，兼有动词的特征和名词的功能，可在句中充当主语、宾语、表语、定语等。1.动词ing的时态和语态构成，以do为例：语态时态主动被动一般式doingbeingdone完成式havingdonehavingbeendoneHehurriedhome,lookingbehindashewent.(一般式)Havingfinishedtheirwork,theyhadarest.(完成式)Thelargebuildingbeingbuiltisalibrary.（被动语态）Havingbeenshownthelab,weweretakentoseethelibrary.(被动完成式)一、动名词作主语动名词作主语通常有两种位置：一种是位于句首；另一种是it作形式主语，而将动名词短语置于句末。①直接置于句首1)捉弄别人是我们万万不能干的.Playingtricksonothersissomethingweshouldneverdo．2)学习新单词对我来说非常重要。Learningnewwordsisveryimportantforme．3)说比做容易。Talkingiseasierthandoing.②用形式主语it，把真正的主语ing形式移置句尾。和夏洛克争辩是没有什么用的。ItisuselesstryingtoarguewithShylock．这事值得去做。It’sworthmakingtheeffort．和你一起工作很愉快Itispleasantworkingwithyou•归纳：常用-ing形式作主语的句型有：•It+be+awasteoftimedoing•做、、、是浪费时间的•Itis/wasnogood/usedoing•做、、、是没益/用处的•Itis/wasworth/worthwhiledoing•做、、、是值得的•Thereis/wasnopointdoing•干、、、无意义二、动名词作宾语动名词（短语）作宾语包括作谓语动词的宾语和作介词的宾语两个概念。①只能后接动名词作宾语的动词，常见的有避免错过少延期avoid,miss,putoff,delay建议完成多练习suggest,finish,practise喜欢想象禁不住enjoy,imagine,can'thelp承认否定与妒忌admit,deny,envy逃避冒险莫原谅escape,risk,excuse,忍受保持感介意stand,keep,appreciate,mindExample:我不能不去。Ican’tavoidgoing．你是否考虑过找一位挚友?Haveyouconsideredlookingforonespecialfriend?我建议今天下午去钓鱼。Isuggestgoingfishingthisafternoon.她已经读完了这本书。Shehasfinishedreadingthebook.2、动名词作介词的宾语•只接v-ing作宾语的词组有：•insiston坚持；beinterestedin对…感兴趣；beafraidof对…感到害怕；befondof喜欢；begoodat擅长；dreamof梦想；feellike想要；prevent∕keep∕stop…from阻止；beproudof对…感到自豪；betiredof对…感到厌倦；to是介词的短语beusedtodoing,习惯于;objectto,反对devoteoneselfto,致力于;stickto,坚持payattentionto,注意;belongto,属于lookforwardto,期盼;seeto,照料contributeto,帮助;leadto,导致adaptto,适应;preferto,倾向于adjustto,使自己适应于;prefer..to,喜欢…referto提到，参考;beaddictedto沉溺于……,对……上瘾；be∕getusedto习惯于….•sheleftwithoutsayinggoodbyetous.•她离开时没有和我们说再见。•Heinsistedonwatchingthefootballgame.他坚持看足球赛。•Theysucceededingettingoverallthedifficulties.他们成功的克服了困难。•Theyallobjectedtoputtingthemeetingoff.他们都反对推迟会议。有些动词既能以不定式作宾语，又能以动名词作宾语，但意思不同。↗remembertodosth.记住去做↘rememberdoingsth.记着做过↗forgettodo忘记要做某事↘forgetdoing忘记做过某事↗regrettodosth.对要发生的事表“抱歉”，“遗憾”↘regretdoingsth.对已发生的事表示后悔↗trytodosth.设法，努力去做↘trydoingsth.尝试着做↗stoptodosth.停下来接着做另外一件事↘stopdoingsth.停止一件事↗goontodosth.接着做另外一件事↘goondoingsth.接着做同一件事↗can’thelptodosth.不能帮助做某事↘can’thelpdoingsth.情不自禁地做某事↗meantodosth.打算做↘meandoingsth.意味着，意思是—Let'shavearest．—Notnow.Idon’twanttostop__________yet．A.studyB.tostudyC.forstudyingD.studying解析：stopstudying意为“停止学习”。—Letmetellyousomethingaboutthejournalists．—Don’tyouremember________methestoryyesterday？A.toldB.tellingC.totellD.tohavetold解析:remembertellingme意为“记得曾经告诉过我”。1.Ican’timagine_____withsuchafamousauthor.A.workB.toworkC.tobeworkingD.working2._____isagoodofexerciseforboththeyoungandtheold.A.ThewalkB.WalkingC.TowalkD.Walked3.Ourfatheroftentoldusinthepastthat_____isbelieving.A.toseeB.seeingC.seeD.tobeseen4.—Whatdoyouthinkofthebook?—Oh,excellent.It’sworth______asecond.A.toreadB.tobereadC.readingD.beingread5.Thelibraryneeds______,butit’llhavetowaituntilSunday.A.cleaningB.becleanedC.cleanD.beingcleaned6.---Youwerebraveenoughtoraiseobjectionsatthemeeting.---Well,nowIregret____that.A.todoB.tobedoingC.tohavedoneD.havingdone7.We’relookingforward_____thephotoexhibition.A.tovisitingB.tovisitC.tohavingvisitedD.visiting8.Haveyouforgotten___$1000frommelastmonth?Willyoupleaseremember____ittomorrow?A.borrowing;tobringB.toborrow;bringC.borrowed;bringingD.borrowing;bringing6.Thoughitsoundsabittoodear(昂贵),itisworth______.A.beingboughtB.buyingC.tobuyD.buyingit7.Hedevotedhislifeto_____theatomictheory.A.studyB.bestudiedC.studyingD.havestudied