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1、动名词作主语如果一个动词加上了ing变成了名词,那么这个词称动名词。 动名词是一种兼有动词和名词特征的非限定动词。它可以支配宾语,也能被副词修饰。动名词有时态和语态的变化。由于动名词是由动词变化而来,它仍保留着动词的某些特征,具有动词的某些变化形式,用以表达名词所不能表达的较为复杂的意念。动名词的名词特征表现在它可在句子中当名词来用,作主语、宾语、表语、定语。它也可以被副词修饰或者支配宾语。 动名词的作用动名词具有名词的性质,因此在句中可以作主语、表语、宾语、定语等。 作主语Reading is an art. 读书是一种艺术。 Climbing mountains is really fun

2、. 爬山真是有趣。 Working in these conditions is not a pleasure but a suffer. 在这种工作条件下工作不是一件愉快的事而是一件痛苦的事。 动名词作主语,在动词的基础上加Ing,使该动词或动词短语,有名词的各种特征,可作名词灵活使用。如: It is no use/no good crying over spilt milk. 覆水难收 It is a waste of time persuading such a person to join us. 劝说这样的人加入真是浪费时间。 It was hard getting on the

3、crowded street car. 上这种拥挤的车真难。 It is fun playing with children. 和孩子们一起玩真好。 There is no joking about such matters. 对这种事情不是开玩笑。 动名词作主语的几种类型 动名词可以在句子中充当名词所能充当的多种句子成分。在这里仅就动名词在句子中作主语的情况进行讨论。 动名词作主语有如下几种常见情况: 1. 直接位于句首做主语。例如: Swimming is a good sport in summer. 2. 用 it 作形式主语,把动名词(真实主语)置于句尾作后置主语。 动名词做主语时,

4、不太常用 it 作先行主语,多见于某些形容词及名词之后。例如: It is no use telling him not to worry. 常见的能用于这种结构的形容词还有:better,wonderful,enjoyable,interesting,foolish,difficult,useless,senseless,worthwhile,等。 注意:important,essential,necessary 等形容词不能用于上述结构。 3. 用于“There be”结构中。例如: There is no saying when he'll come.很难说他何时回来。 4. 用

5、于布告形式的省略结构中。例如: No smoking ( =No smoking is allowed (here) ). (禁止吸烟) No parking. (禁止停车) 5. 动名词的复合结构作主语 当动名词有自己的逻辑主语时,常可以在前面加上一个名词或代词的所有格,构成动名词的复合结构(这时,名词或代词的所有格做动名词的逻辑主语)。动名词的复合结构也可以在句中作主语。例如: Their coming to help was a great encouragement to us. 6.例词 shopping fishing cycling这些都是很常见的动名词 二、动名词作主语与动词不

6、定式作主语的比较 动词不定式和动名词都可以用作主语。在意义上相近。但动名词多用来表示泛指或抽象动作,不定式多用来表示特指或具体动作。比较: Smoking is not good for health. It is not good for you to smoke so much. 注意: 1)在口语中,用动名词作主语位于句首的较不定式多见。 2)在“It is no use.”,“It is no good.”,“It is fun.”,“It is a waste of time.”等句型中,通常用动名词作真实主语: It is no use/good/a waste of time t

7、alking about that. *It is no use/good/a waste of time to talk about that. 3)在疑问句中,通常用动名词的复合结构,而不用不定式的复合结构作主语: Does your saying that mean anything to him? *Does for you to say that mean anything to him? 4)在“There be”句型中,只能用动名词,而不能用不定式作主语: There is no telling what will happen. It is impossible to tell

8、 what will happen. 5)当句子中的主语和表语都是非限定动词时,要遵循前后一致的原则,主语和表语在形式上要求统一: Seeing is believing. *To see is to believe. 作宾语(1)作动词的宾语 某些动词后出现非限定性动词时只能用动名词作宾语,不能用不定式。常见的此类动词有:admit,appreciate,excuse,stand,advise, allow, permit, avoid, consider, enjoy, finish, give up, cannot help, imagine, include, keep,underst

9、and, keep on, mind, report,risk,miss, put off, delay, practise, resist, suggest, depend on, think about, set about, succeed in, worry about, burst out, insist on, can't help, feel like,be used to, get used to, devoteto, look forward to, pay attention to, get down to,escape 等。如: They went on walk

10、ing and never stopped talking. 他们继续走,说个不停。 I found it pleasant walking along the seashore. 在海滩上走真是乐事。 Mark often attempts to escape being fined whenever he breaks traffic regulations. 每当马克违反交通规则时,他常常企图逃避罚款的处分。 (2)作介词的宾语 We are thinking of making a new plan for the next term. 我们正考虑为下学期制定新的计划。 Shall w

11、e have a rest or get down to doing our work? 我们休息呢还是开始干活? (3)作形容词的宾语 The music is well worth listening to more than once. 这种曲子很值得多听几遍。 We are busy preparing for the coming sports meet. 我们正为马上到来的运动会忙着做准备。 作表语动名词作表语时句子主语常是表示无生命的事物的名词或what引导的名词性从句。表语动名词与主语通常是对等的关系,表示主语的内容,主语、表语可互换位置。 Your task is clean

12、ing the windows. 你的任务就是擦窗户。(Cleaning the windows is your task.) What I hate most is being laughed at. 我最痛恨的就是被别人嘲笑。 (Being laughed at is what I hate most.) 作定语动名词作定语往往表示被修饰词的某种用途。如: a walking stick a stick for walking=a stick which is used for walking a washing machine=a machine for washing=a machin

13、e which is used for washing a reading room=a room for reading=a room which is used for reading a measuring tape=a tape for measuring=a tape which is used for measuring sleeping pills=pills for sleeping=pills which is used for sleeping 结构和形式动名词的否定结构动名词的否定结构由not 动名词组成。如: Trying without success is bett

14、er than not trying at all. 实验没有成功也比不实验好。 He hated himself for not having work hard. 他悔恨自己没有用功。 Im sorry for not having telephoned you before. 很抱歉,没有早给你打电话。 He felt sorry for not having done the work well. 他为没有把工作做好感到难过。 I fancy it has done you a lot of good not going. 我看不去对你倒好了。(not going 是动名词一般式的否定

15、形式) There is no denying the fact that he si diligent. (no denying 也是动名词一般式的否定) 动名词复合结构通常情况下,动名词的逻辑主语为谓语动词的主语。如果动名词动作的发出者不失谓语动的主语时,则需要有自己的逻辑主语物主代词或名词所有格加动名词就构成了动名词的复合结构,这种结构在句中可以作主语,宾语等。 (1)逻辑主语是有生命的名词作主语时,必须用名词或代词所有格,作宾语时(尤其在口语中),也可用名词普通个或人称代词宾格。如: Do you think my going there will be of any help? 你看

16、我去会有什么帮助吗?(宾语) The students knowing English well helps him in learning French. 这位学生通晓英语对他学法语很有帮助。(主语) Do you mind my(me) smoking ? 你介意我抽烟吗?(宾语) They insist on Marys (Mary) going with them there. 他们坚持要玛丽跟他们一起去那儿。(介词宾语) (2)逻辑主语是无生命名词是,通常只用名词普通格。如: Do you hear the rain pattering on the roof? 你听见雨点打在屋顶上

17、了吗? Is there any hope of our team winning the match ? 我们对赢得比赛有希望吗? (3) 逻辑主语是指示代词或不定代词this that , somebody , someone , nobody, none, anybody, anyone 时,只用普通格。如: She was woken up by somebody shouting outside. 她被外面喊叫的人吵醒了。 形式(一般式,完成式和被动式)(1) 动名词的一般式所表示的动作与谓语动词所表示的动作同时发生,或在谓语动词表示的动作之后。如: We are very inte

18、rested in collecting stamps. 我们对集邮很感兴趣。 His coming will be of great help to us . 他来对我们大有帮助。 但是有些明确表示时间的动词和介词after, on,upon, 或for之后,常用一般式代替完成式,表示动作发生在谓语动作之前。如: I shall never forget seeing the Great Wall for the first time. 我永远不会忘记第一次看到长城的情景。 On hearing that bad news , the mother couldnt help crying.

19、一听到这个糟糕的消息,母亲就禁不住哭了起来。 Excuse me for coming late. 我来晚了,请原谅。 Thank you for giving us so much help. 谢谢你给了我们这么多帮助。 (2) 动名词的完成式所表示的动作或状态在谓语动词之前完成或结束。 He regrets not having taken part in the work. 他后悔没有参加这项工作。 We were praised for having finished the work ahead of time. 我们因提前完成了这项工作而受到了表扬。 (3)动名词的被动式:当动名词

20、的逻辑主语是行为承受者时,用被动语态。如: I like being given harder work. 我喜欢接受难点的工作。 She is proud of being admitted into the university. 她为被大学录取而感到自豪。 The meeting was put off without his having been consulted. 会议延期并未和他商量。 He doesnt mind having been criticized. 他不介意过去受到的批评。 动名词的逻辑主语带有逻辑主语的动名词称为动名词的复合结构。当动名词的逻辑主语与句子的主语不

21、一致时,要在动名词之前加上物主代词或名词所有格,这便构成了动名词的复合结构。其中物主代词(名词所有格)是逻辑上的主语,动名词是逻辑上的谓语。动名词复合结构在句中可作主语、宾语、表语等,分别相当于一个主语从句、宾语从句、表语从句。如: Her coming to help encouraged all of us. 他来帮忙鼓舞了我们所有人。 (=That she came to help encouraged all of us.) Janes being careless caused so much trouble. 简的粗心惹来了不少麻烦。 (=That Jane was careles

22、s caused so much trouble.) Whats troubling them is their not having enough food. 烦扰他们的是食物不足。 (=Whats troubling them is that they have not enough food.) 在口语中,如果动名词复合结构作宾语,其中的物主代词常用人称代词宾格,名词所有格常用名词普通格来代替,但在句首作主语时不能这样来代替。如: Would you mind my/me using your computer? 用下你的电脑介意吗? The father insisted on his

23、 sons/his son going to college. 爸爸坚决要求儿子上大学。 Marys (不可用Mary) being ill made her mother upset. 玛丽病了,使她妈妈很着急。 His (不可用Him)smoking made his family angry. 他抽烟使他一家人非常生气。 在下列情况下动名词的逻辑主语必须用名词的普通格或人称代词宾语: a.无命名词 The baby was made awake by the door suddenly shutting. 这个婴儿被猛烈的关门声吵醒。 b. 有生命名词但表示泛指意义 Have you e

24、ver heard of women practising boxing? 你听说过妇女练拳击吗? c. 两个以上的有生命名词并列 Do you remember your parents and me telling about this? 你记得你父母和我都告诉过你这事吗? 动名词的时态和语态动名词的时态和语态如下: 时态 主动语态 被动语态 一般式 Writing、 being written 完成式 having written、 having been written 其否定形式是在doing前加上not 1、动名词一般式表示的动作通常是一般性动作,即不是明确地发生在过去、现在或将来

25、的动作,或是与谓语动词所表示的动作同时发生的动作。如: I hate talking with such people. 我讨厌与这样的人说话。 Being careless is not a good habit. 粗心不是一个好习惯。 2、动名词的完成式表示的动作发生在谓语动词动作之前。如: I dont remember having met him before. 我记不得以前见过他。 Thank you for having taking so much trouble to help. 谢谢你费力帮忙。 3、动名词的逻辑主语同时也是动名词动作的承受者,动名词用被动语态。 (1)它的

26、一般式表示的动作与谓语动词动作同时发生,或在其前发生。如: I dont like being laughed at in public. 在公共场合下,我不喜欢被别人嘲笑。 (2)它的完成式表示的动作发生在谓语动词之前。如: I am very pleased at your having been honoured with a medal. 我很高兴你能获得这样的奖牌。 (3)在某些动词,我们常用动名词的一般式表示完成式,尽管动作发生在谓语动词动作之前,这似乎是一种强大的习惯。如: Excuse me for being late. 我来晚了请你原谅。 I dont remember e

27、ver meeting somewhere. 我记不得原来在什么地方见过。 Thank you for giving us so much help. 谢谢给我们这么大的帮助。 (4)在多数情况下都避免使用动名词被动语态完成式,而用一般式代替,以免句子显得累赘,尤其是在口语中。如: I forget once being taken (having been taken ) to the city zoo. 我曾被带到过这个动物园,可我忘了。 (5)动名词被动语态一般式与现在分词被动语态一般式同形,但无进行意义,being不可省略。如: She is afraid of being taken

28、 to the public. 她怕被领到大众面前。 常见题型1) 动名词做主语时,谓语动词为单数 2) 在动名词和不定式中,作为介词的宾语是动名词 3) 动名词的否定直接在其前加否定词,通过代词的宾格或所有格形式给出逻辑主语 例: I would appreciate_ back this afternoon. Ayou to call Byou call Cyou calling Dyoure calling(Key:C;换成your calling也对) 4) 有些词后只能接动名词 acknowledge;admit; advise;advocate;allow;appreciate;

29、avoid; celebrate; consider; contemplate; defer; delay; deny; detest; discontinue; dislike; dispute; enjoy; it entails; escape; excuse; explain; fancy; feel like; finish; forgive; cant help; hinder; imagine; it involves; keep; it means; mention; mind; miss; it necessitates; pardon; postpone; practice

30、; prevent; recall; report; resent; resist; risk; suggest; understand. 5) 另外还有一些接-ing形式的常用说法 its no good; its no/little/hardly any/ use; its not/hardly/scarcely use; its worthwhile; spend money/time; theres no; theres no point in; theres nothing worse than; whats the use/point. 6) 有些词后面加不定式和动名词均可 rem

31、ember, forget, try, stop, go on, continue,stop,regret,cease, mean后面均可用不定式和-ing形式,但意义截然不容。 例: remember to do/doing: I remembered to post the letters.(指未来/过去未来将要做的动作) I remembered posting/having posted the letters.(我记得做过这个动作) forget与remember的用法类似。 regret的用法: I regret to inform you that(我很遗憾地通知你) I regretted having left the firm after twenty years.(为了“二十年前的离开”而遗憾。) try to(努力)与try +ing(试验): You really must t

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