动词ing的用法一. 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. 眼见为实Helping her is my duty. 帮助她是我的责任Talking mends no holes. 空谈无济于事。 动名词做主语和不定式做主语一样，也可以用it作形式主语。如： Its rather tiring walking around in a city.不定式做主语往往表示具体的特别是将来的动作。如： Its no use crying over spilt milk. 覆水难收。 He realized that to go on like this was 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，delay, devote to, dislike enjoy，escape, excuse, feel like, finish, forgive, get down to, give up, imagine. insist on, keep (on), look forward to, mention, mind, miss（错过）, pay attention to, practice, put off, stick to, suggest等等。 Doing morning exercises is good for your health. 做早操对你的健康有好处。Her shoes want mending. 她的鞋该修理了。注意: 当 need, want, require, worth后面接doing也可以表示被动。Your hair wants cutting.你的头发该理了。The floor requires washing. 地板需要冲洗。I have finished writing this book. 我已经写完这本书了。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“allowadviseforbidpermit 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 needsrequireswants cleaningto be cleaned 4. 在begin, continue, love, like, hate, prefer, intend, start后用动名词和 用不定式作宾语均可，意义没有多大区别。 5. 动词forget, go on, mean, regret, remember, stop, try, be used to, cant help后跟动名词和跟不定式区别较大，须注意。 forget, regret, remember后跟动名词，动名词表示已经发生的动作；后跟不定式表示将要发生的动作。 go on doing 继续做原来做的事go on to do 接着做另一件事 mean doing 意味着要做某事mean to do 想要做某事 stop doing 停止做某事stop to do 停下来（别的事）开始做某事try doing 试着做某事try to do 努力做某事be used to doing 习惯于做某事 be used to do 被用来做某事cant help doing 禁不住做某事cant help to do 不能帮助做某事Exercise:1. It took the workmen only two hours to finish _ my car. A. repairing B. repair C. to repair D. repaired2. 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; bringing3. 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. waited5.My brother keeps _ me with my work. A. to help B. help C. helping D. helped6. We should often practise _ English with each other. A. to speak B. spoke C. speak D. speaking7. Keep on _ and you will succeed. A. a try B. try C. to try D. trying8. His parents insist on _ to college. A. he should go B. he go C. his going D. him to go9. Though it sounds a bit too dear, it is worth _. A. being bought B. buying C. to buy D. buying it10. I regret _ that to her. A. having said B. to have said C. to say 11. Your clothes need _. A. washed B. to be washed C. to wash D. being washed12. _ provides us with essential nutrients (营养), while _ provides us with oxygen. A. To eat; breathing B. Eating; to breathe C. Eating; breathing D. Eaten; breathed-ing 形式作定语, 宾语补足语和表语的用法一、-ing形式作定语 1. 单个动词的-ing形式作定语位于被修饰名词的前面，既可以表示被修饰者的作用或功能，也可以表示被修饰者的动作或状态。如：building materials = materials for building 建筑材料drinking water = water for drinking 饮用水a walking stick = a stick for walking 手杖a reading room = a room for reading 阅览室a writing desk = a desk for writing 写字台tiring music = music that is tiring 烦人的音乐a surprising result = a result that is surprising 一个惊人的结果 2. -ing形式短语作定语时, 放在所修饰的名词之后, 并且在意思上相当于一个定语从句。如：They lived in a room facing the street. = They lived in a room that faces the street. 他们住在一间面朝街的房子。The man standing there is Peters father. = The man who is standing there is Peters father. 站在那儿的那个人是彼得的父亲。Anybody swimming in this river will be fined. = Anybody who is swimming in this river will be fined. 在这条河里游泳的任何一个人都会被罚款。3. -ing形式短语也可以用作非限制定语，相当于一个非限制性定语从句，这时，它与句子其他部分用逗号分开。如： His brother, working as a teacher, lives in Beijing. = His brother, who is working as a teacher, lives in Beijing. 他那个当教师的哥哥住在北京。The apple tree, swaying gently in the breeze, had a good crop of fruit. = The apple tree, which was swaying gently in the breeze, had a good crop of fruit. 那棵苹果树硕果累累，在微风中轻轻摇曳。二、-ing形式作宾语补足语 1. 1) 动词-ing形式作宾语补足语常放在宾语后面，表示一个正在进行的主动性的动作，强调一个过程或一种状态。如： When we returned to the school, we found a stranger standing at the entrance. 当我们回到学校时, 发现一个