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.(做運(yùn)動)Doing exercise is a waste of time.(玩電腦游戲)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.主語主語 賓語賓語 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. 做主語 2. 謂語動詞用 . 往往表示經(jīng)常性、往往表示經(jīng)常性、 習(xí)慣性的動作習(xí)慣性的動作V-ing單數(shù)單數(shù) 區(qū)別：區(qū)別：不定式to do 通常表示具體的動作It 作形式主語 Sorry, theres a t

4、raffic 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. Its + adj.+doing sth. Its a waste of + n.+doing sth. Its no + n. + doing sth. There be + no +doing記住別人的名字是很重要的。翻譯：翻譯：Its very important remembering others names.做這件事是浪費(fèi)時間。Its a waste of

5、 time doing it.在這里等是沒有用的，我們回家吧。It no use waiting here; lets go home.1. 這些動詞后只能跟這些動詞后只能跟V-ing作賓語，而作賓語，而不能跟不定式作賓語不能跟不定式作賓語 admit, avoid, consider, enjoy, escape, excuse, finish, imagine, miss, practise, suggest, delay, appreciate 等動詞。1. I cant imagine the boy (speak) so rudely to his parents.2. Today

6、were going to practise (park).speakingparking2. 一些動詞短語后用V-ing形式做賓語 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有些動詞有些動詞如如remember, forget, try, regret, stop, go on, mean, 等后既可接動詞不定式等后既可接動

7、詞不定式又可接動名詞，又可接動名詞，但意義不同。但意義不同。 regret to do 遺憾要做某事遺憾要做某事 regret doing后悔做過某事后悔做過某事 remember/forget/regret+ to do 表該動作未曾發(fā)生表該動作未曾發(fā)生remember/forget/regret+ doing 表該動作已發(fā)生表該動作已發(fā)生Eg:1. I regret not having told her earlier 我很后悔，沒有早點(diǎn)告訴她我很后悔，沒有早點(diǎn)告訴她 2. I regret to say that I must leave tomorrow. 我遺憾地說，我明天必走我遺

8、憾地說，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繼續(xù)做另一件事繼續(xù)做另一件事繼續(xù)做同一件事繼續(xù)做同一件事打算做某事打算做某事意味著意味著試著做某事試著做某事試一試試一試記得要做某事記得要做某事記得做過某事記得做過某事忘記要做某事忘記要做某事忘記做過某事忘記做過某事remember to do remember doingforget to do forget doingstop to dostop doinggo on to do go on doingmean to domean doingtry to dotry doing I regret (t

9、ell) you that my sister regretted (make) you her date. You are not the kind of person she wants.to tell making I remember (meet) her at a party once. Please remember (meet) her at the party tomorrow.meetingto meet V-ing形式用在動詞形式用在動詞need, require, want后后意為意為“需要需要”時，后跟時，后跟V-ing形式的主動式形式的主動式或或不定式的被動式不定式的

10、被動式表示被動意義。表示被動意義。 如：如： The window needs cleaning. = The window needs to be cleaned.這輛車需要修理。這輛車需要修理。 The car requires repairing. The car requires to be repaired.As the subjectAs the object表示經(jīng)常性、表示經(jīng)常性、 習(xí)慣性的動作。習(xí)慣性的動作。謂語動詞用單數(shù)謂語動詞用單數(shù)Its + adj.+doing sth.Its a waste of + n.+doing sth.Its no + n. + doing sth.There be + no +doing動詞：動詞： consider, enjoy, finish, imagine 短語：短語： look forward to, cant help remember, forget, try, regret, stop, go on, mean, 等可接動詞不定式又可接動名詞，等可接動詞不定式又可接動名詞，但意義不同。但意義不同。 need, require, want后意為后意為“需要需要