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1、Have you ever seen these signs?parking, spitting, littering, smoking-ing formsThe ing form as the Subject and Object is his hobby.Singing is the best way to lose weight.(做运动)Doing exercise is a waste of time.(玩电脑游戏)Playing computer gamesDo you enjoy to pop music ?listeningDo you think teacher should
2、 blame students for (chat) in the class?chatting You should give up right now.smoking1. Singing is his hobby.2. Doing exercise is the best way to lose weight.3. Playing computer games is a waste of time.4. Do you enjoy listening to pop music ?5. Do you think teacher should blame student for chatting
3、 in the class?6. You should give up smoking right now.Discuss: V-ing 在句中作什么成分？在句中作什么成分？主语主语 宾语宾语 Whats in common?Singing is his hobby.Doing exercise is the best way to lose weight.Playing computer games is a waste of time.1. 做主语2. 谓语动词用 . 往往表示经常性、往往表示经常性、 习惯性的动作习惯性的动作V-ing单数单数 区别：区别：不定式to do 通常表示具体的
4、动作It 作形式主语Sorry, theres a traffic jam. I promise I wont be late next time. It is no use saying such a thing.It is no use saying such a thing.It 作形式主语常见句型作形式主语常见句型Its + adj.+doing sth.Its a waste of + n.+doing sth.Its no + n. + doing sth.There be + no +doing记住别人的名字是很重要的。翻译：翻译：Its very important remem
5、bering others names.做这件事是浪费时间。Its a waste of time doing it.在这里等是没有用的，我们回家吧。It no use waiting here; lets go home.1. 这些动词后只能跟这些动词后只能跟V-ing作宾语，而不作宾语，而不能跟不定式作宾语能跟不定式作宾语admit, avoid, consider, enjoy, escape, excuse, finish, imagine, miss, practise, suggest, delay, appreciate 等动词。1. I cant imagine the boy
6、 (speak) so rudely to his parents.2. Today were going to practise (park).speakingparking2. 一些动词短语后用V-ing形式做宾语Give up, put off, get to, look forward to, cant help, pay attention to, devote to, be/get use to 1. My mother says shes looking forward to (meet) you.meeting有些动词有些动词如如remember, forget, try, r
7、egret, stop, go on, mean, 等后既可接动词不定式等后既可接动词不定式又可接动名词，又可接动名词，但意义不同。但意义不同。 regret to do 遗憾要做某事遗憾要做某事 regret doing后悔做过某事后悔做过某事 remember/forget/regret+ to do 表该动作未曾发生表该动作未曾发生remember/forget/regret+ doing 表该动作已发生表该动作已发生Eg:1. I regret not having told her earlier 我很后悔，没有早点告诉她我很后悔，没有早点告诉她 2. I regret to say
8、 that I must leave tomorrow. 我遗憾地说，我明天必走我遗憾地说，我明天必走停止一件事去做另一件事停止一件事去做另一件事停止做同一件事停止做同一件事继续做另一件事继续做另一件事继续做同一件事继续做同一件事打算做某事打算做某事意味着意味着试着做某事试着做某事试一试试一试记得要做某事记得要做某事记得做过某事记得做过某事忘记要做某事忘记要做某事忘记做过某事忘记做过某事remember to do remember doingforget to do forget doingstop to dostop doinggo on to do go on doingmean to
9、domean doingtry to dotry doing I regret (tell) you that my sister regretted (make) you her date. You are not the kind of person she wants.to tell makingI remember (meet) her at a party once.Please remember (meet) her at the party tomorrow.meetingto meetV-ing形式用在动词形式用在动词need, require, want后意后意为为“需要需要
10、”时，后跟时，后跟V-ing形式的主动式形式的主动式或或不定式的被动式不定式的被动式表示被动意义。表示被动意义。如：如： The window needs cleaning. = The window needs to be cleaned.这辆车需要修理。这辆车需要修理。 The car requires repairing. The car requires to be repaired.V-ingAs the subjectAs the object表示经常性、表示经常性、 习惯性的动作。习惯性的动作。谓语动词用单数谓语动词用单数Its + adj.+doing sth.Its a wa
11、ste of + n.+doing sth.Its no + n. + doing sth.There be + no +doing动词：动词： consider, enjoy, finish, imagine 短语：短语： look forward to, cant help remember, forget, try, regret, stop, go on, mean, 等可接动词不定式又可接动名词，等可接动词不定式又可接动名词，但意义不同。但意义不同。 need, require, want后意为后意为“需要需要”时，后跟时，后跟 V-ing形式的主动式或不定式的被动式表示形式的主动式或不定式的被动式表示 被动意义。被动意义。 周报46期第4版，part 21.Review what we have learnt today after class.2.Finish exercise on page 25 of 自自主学习能力测评主学习能力测评
