1、 一一.动名词做主语的用法动名词做主语的用法 1.表示经常性、习惯性的动作表示经常性、习惯性的动作;抽象的或泛指的动作抽象的或泛指的动作,谓谓语动词用单数语动词用单数.在口语中也可以表示具体的动作。如：在口语中也可以表示具体的动作。如：Seeing is believing.Its rather tiring walking around in a city.Going to bed early and getting up early is considered to be a good habitGrammar.不定式做主语表具体表将来不定式做主语表具体表将来 Its no use cry
2、ing over spilt milk.覆水难收。覆水难收。He realized that to go on like this was wrong.（指抽象动作）（指抽象动作）（指具体动作）（指具体动作）.2.动词动词-ing形式作主语时常后置形式作主语时常后置,用用it作形作形式主语，用形容词或名词作表语。常见式主语，用形容词或名词作表语。常见的作表语的名词或短语有：的作表语的名词或短语有：no use,no good,fun,hard work,a hard/difficult job,a wonder,a waste of time等。如：等。如：Is it worthwhile q
3、uarrelling with her?Its no good waiting here.Lets go home.It was a waste of time reading that book.归纳：常用归纳：常用-ing形式作主语的句型有：形式作主语的句型有：It+be+a waste of time doing 做做是浪费时间的是浪费时间的 It is/was no good/use doing 做做是没益是没益/用处的用处的 It is/was hardly/scarcely worth doing 做做不值得不值得 It is/was worth/worthwhile doing
4、做做是值得的是值得的 There is no doing 无法无法，不允许不允许.3.“There is+no”后可以用动词后可以用动词-ing形形式作主语，表示式作主语，表示“没法没法”。如：。如：There was no telling when this might happen again.没法预料这样的事什没法预料这样的事什么时候会再发生。么时候会再发生。There was no knowing what he could do.他能做什么很难说。他能做什么很难说。.There is no sense in doing 做做没有道理没有道理 There is/was no use d
5、oing 干干无意义无意义 There is/was nothing worse than doing 没有比没有比更糟的更糟的 There is/was no point doing 干干无意义无意义 我们不知道要去哪儿。我们不知道要去哪儿。There was no knowing where we would go.注意：注意：There is no need to do sth 干干没必要，没必要，在此句式中在此句式中to do 不可换为不可换为doing.没有必要告诉她。没有必要告诉她。There is no need to tell her.【考例】What do you think
6、 made Mary so upset？_ her new bicycle（1997上海高考题）上海高考题）A.As she lost B.Lost C.Losing D.Because of losing.二二.动名词作宾语的用法动名词作宾语的用法 1有些动词或短语动词后常用动名词作有些动词或短语动词后常用动名词作宾语。如宾语。如admit,appreciate,avoid，cant stand（不能忍受）（不能忍受）,consider，delay,devote to,dislike enjoy，escape,excuse,feel like,finish,forgive,get down
7、to,give up,imagine.insist on,keep(on),look forward to,mention,mind,miss（错过）（错过）,pay attention to,practice,put off,stick to,suggest等等。等等。Doing morning exercises is good for your health.【考例】【考例】1.I cant imagine _ that with them.A.do B.to do C.being done D.doing 2.She looks forward every spring to _ th
8、e flower-lined garden（1995上海高考题）上海高考题）A.visit B.paying a visit C.walk in D.walking in.2.allow,advise,forbid,permit+doing allowadviseforbidpermit+sb.to do We dont allow smoking here We dont allow anybody to smoke here 3.sth.needsrequireswants doing to be done 4.begin,continue,hate,prefer,intend,start
9、,love,like+to do/doing .5.forget,regret,remember+doing (表示已经发生的动作表示已经发生的动作)forget,regret,remember+to do (表示将要发生的动作表示将要发生的动作).go on doing 继续做原来做的事继续做原来做的事go on to do 接着做另一件事接着做另一件事 mean doing 意味着要做某事意味着要做某事mean to do 想要做某事想要做某事 stop doing 停止做某事停止做某事stop to do 停下来（别的事）开始停下来（别的事）开始 做某事做某事.try doing 试着做
10、某事试着做某事try to do 努力做某事努力做某事be used to doing 习惯于做某事习惯于做某事 be used to do 被用来做某事被用来做某事cant help doing 禁不住做某事禁不住做某事cant help to do 不能帮助做某事不能帮助做某事.注意注意 动词动词-ing形式的复合结构形式的复合结构,如：如：Im annoyed about Johns forgetting to pay.I really cant understand you treating her like that.2.动词动词-ing形式的否定形式是在其前面形式的否定形式是在其前
11、面加加not，带有逻辑主语时，带有逻辑主语时not应在动词应在动词-ing形式之前。如：形式之前。如：Not cleaning her teeth made her smell bad.Your schoolmates not coming home in time made her parents worried.【考例】Lets have a rest Not nowI dont want to stop _ yet（MET 1985）A.study B.to study C.for studying D.studying.Let me tell you something about t
12、he journalists Dont you remember _ me the story yesterday？（？（1999上海高上海高考题）考题）A.told B.telling C.to tell D.to have told.1.It took the workmen only two hours to finish _ my car.A.repairing B.repair C.to repair D.repairedExcersice.2.Have you forgotten _$1000 from me last month?Will you please remember
13、_ it tomorrow?A.borrowing;to bring B.to borrow;bring C.borrowed;bringing D.borrowing;bringing.3.The classroom wants _.A.clean B.cleaned C.to clean D.cleaning4.Jack said that he wouldnt mind _ for us.A.to wait B.wait C.waiting D.waited.5.My brother keeps _ me with my work.A.to help B.help C.helping D
14、.helped6.We should often practise _ English with each other.A.to speak B.spoke C.speak D.speaking.7.Keep on _ and you will succeed.A.a try B.try C.triing D.trying8.His parents insist on _ to college.A.he should go B.he go C.his going D.him to go.9.The story was so funny that we _.A.couldnt help laug
15、h B.cant but laugh C.couldnt help laughing D.couldnt help but to laugh.10.Though it sounds a bit too dear,it is worth _.A.being bought B.buying C.to buy D.buying it11.He devoted his life to _ the atomic theory.A.study B.be studied C.studying D.have studied.12.We are both looking forward to _ next we
16、ek.A.going on vocation(休假休假)B.go on vocation C.be going on vocation D.have gone on vocation.13.You must pay attention to _ the works of Lu Xun.A.read B.reading C.reader D.be read14.You should work tonight instead of _ TV.A.to watch B.you watching C.you watch D.watching.15.The microscope is used for_
17、 minute(微小的微小的)objects.A.examining B.being examined C.examined D.examine16.Mike has got used _ up late at night.(stay up)A.to sit B.X C.to sitting D.sitting.17.Once the heart stops _,death follows at once.A.beating B.to beat C.being beaten D.to be beating18.We are now busy _ for the examination.A.to
18、 prepare B.preparing C.prepared D.being prepared.19.I remembered _ this person somewhere before.A.seeing B.having been seen C.seen D.to see20.I regret _ that to her.A.having said B.to have said C.to say D.X.21.The patient must be separated to avoid(避免避免)_ others.A.being infected(感染感染)B.infecting C.t
19、o infect D.infected22.Your clothes need _.A.washed B.to be washed C.to wash D.being washed.23._ provides us with essential nutrients(营养营养),while _ provides us with oxygen.A.To eat;breathing B.Eating;to breathe C.Eating;breathing D.Eaten;breathed.24.He attended the party without_.A.invited B.inviting
20、 C.having invited D.being invited25.By _,water can be changed into gas.A.heating B.being heated C.having heated D.heated.26.On land many objects prevent sound _ very far.A.to travel B.travel C.from travelling D.to travelling27.She returned home only to find the door open and something_.A.missed B.to
21、 be missing C.missing D.to be missed.28.Remember_ the newspaper when you have finished it.A.putting back B.put back C.to put back D.be put back 29.Writing stories and articles_ what I enjoy most.A.is B.are C.was D.were.30.He was afraid _for being late.A.of seeing B.of being seen C.to be seen D.to ha
22、ve seen.根据括号内的汉语提示根据括号内的汉语提示,完成下列句子。完成下列句子。1._(大声朗读大声朗读)in the library is a bad habit.2.Its no use _(像这样谈话像这样谈话).3.In my mind,_ _(进入那所著名的大学进入那所著名的大学)will be the only way to become a world-class writer.attending the famous universityReading aloudtalking like this.4.Mary got well-prepared for the job interview,for she couldnt risk _(丢失这丢失这个好机会个好机会).5.He remembered _ _(没有完成作业没有完成作业),so he got up early to do it the next morning.not having finished his homeworklosing the good opportunity.
