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1、,一. 动名词做主语的用法 动名词做主语往往表示经常性、习惯性的动作, 在口语中也可以表示具体的动作。如： Seeing is believing. Helping her is my duty.,动名词,Talking mends no holes. 空谈无济于事。 Working with you is a pleasure. 和你一起工作是一种乐趣。,直接置于句首,1) 捉弄别人是我们万万不能干的. Playing tricks on others is something we should never do 2)学习新单词对我来说非常重要。 Learning new words is
2、 very important for me 3)说比做容易。 Talking is easier than doing., 用形式主语it，把真正的主语v- ing形式移置句尾。但这种句子 形式有一定的限制，作表语的只 能是某些形容词或少数名词。,归纳：常用-ing形式作主语的句型有： It +be +a waste of time doing 做是浪费时间的 It is/was no good/use doing 做是没益/用处的,It is/was worth/worthwhile doing 做是值得的 It is/was hardly/scarcely worth doing 做不值
3、得,和夏洛克争辩是没什么用的。 It is useless trying to argue with Shylock这事值得去做。 Its worth making the effort,想再解释一次有好处吗?Is it any good trying to explain?跟你在一起工作是令人愉快的。It is pleasant working with you。,在there be no结构中作主语 。 这种结构的意思相当于“It is impossible to do ” 无法 ， 不允许 There be no doing,There is no sense in doing 做没有道
4、理There is/was no use doing 干无意义 There is/was nothing worse than doing 没有比更糟的There is/was no point doing 干无意义,若要人不知，除非己莫为。There is no hiding of evil but not to do it这种事开不得玩笑。 Here is no joking about such matter.,我们不知道要去哪儿。There was no knowing where we would go. 做这件傻事毫无意义。 There is no point doing such
5、 a silly thing.,注意：There is no need to do sth 干没必要，在此句式中to do 不可换为doing. 没有必要告诉她。 There is no need to tell her.,注意：-ing与不定式的比较： v-ing表示的动作通常是一个泛指的动作，不定式则通常表示具体的特别是将来的动作。,Its no use crying over spilt milk. 覆水难收。 He realized that to go on like this was wrong.,（指抽象动作）,（指具体动作）,我喜欢看书，但是我现在想看电影。I like rea
6、ding ，but nowI like to see a film .,注意：-ing的逻辑主语由形容词性物主代词和名词所有格构成。我姐姐病了，使我很担心。My sisters being ill made us worried.你正确未必就意味着我错了。 Your being right doesnt necessarily mean my being wrong.,二. 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宾语。如 admit, appreciate, avoid，cant stand（不能忍受）, consider(考虑)，delay, dislike，enjoy，es
7、cape, excuse, feel like, finish, forgive, give up, imagine.,insist on, keep (on), mention, mind, miss（错过）, practice, put off, suggest等等。 我不能不去。I cant avoid going,【考例】,I cant imagine _ that with them A. do B. to do C. being done D. doing,2. 在allow, advise, forbid, permit后直接跟动名词作宾语，如果有名词或代词作宾语，则构成“all
8、owadviseforbidpermit 名词代词不定式（宾语补足语）”之形式。如：,We dont allow smoking here We dont allow anybody to smoke here,3. 动词need, require, want意为“需要”时，后跟动名词的主动式或不定式的被动式作宾语，意义没有区别。如： The window needs/ requireswants cleaningto be cleaned,4.既可接动名词又可接不定式作宾语的动词，常见的有：begin，start，continue，like，love，prefer, mean，forget，
9、remember，hate等。,A在 love, like, hate, prefer, 等动词之后，用v-ing或不定式意义上没有什么不同，只是侧重点有些不同，动名词表示泛指的动作，不定式表示具体的一次性动作。,在begin/start，continue之后，用动名词和不定式，意义无甚区别，尤其是当主语是人的时候。,我喜欢看书，但是我现在想看电影。I like reading ，but nowI like to see a film .,B. 动词forget, go on, mean, regret, remember, stop, try, be used to, cant help等后
10、跟动名词和跟不定式区别较大，须注意。,【考例】, Lets have a rest Not nowI dont want to stop _ yet A. study B. to study C. for studying D. studying,解析：stop studying意为“停止学习”。, Let me tell you something about the journalists Dont you remember _ me the story yesterday？ A. told B. telling C. to tell D. to have told,解析: remembe
11、r telling me意为 “记得曾经告诉过我”。,3作介词宾语 下列短语中的to都是介词，所以后面跟名词或-ing形式：devote to，object to，pay attention to，get down to，lead to, look forward to，stick to，be used to等。,She looks forward every spring to _ the flower-lined garden A. visit B. paying a visit C. walk in D. walking in,解析：考查短语动词 look forward to 后跟动名
12、词作宾语的用法。,Thank you!,2. Have you forgotten _$1000 from me last month? Will you please remember _ 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. cleaning 4. Jack said that he wouldnt mind
13、 _ 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. helped 6. 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. to try D. trying 8.
14、 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 laugh B. cant but laugh C. couldnt help laughing D. couldnt help but to laugh,10. Though it sounds a bit too dear (昂贵), it is worth _. A. being bought B. buyin
15、g C. to buy D. buying it 11. 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 week. A. going on vocation(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 read 14. You should work tonight instead of _ TV. A. to watch B. you watc
