八下unit 2 Section A 动词不定式.ppt

1、The Infinitive,动词不定式,The infinitive,正午中心学校：胡丽荣,like/enjoy/prefer, keep, practice, go, finish,get used to; have problem/difficulty/fun doing, be worth doing, spend doing, be busy doing, look forward to doing, make a contribution to doing, mind, avoid ，stop,喜欢的话，就保持练习去完成它，它虽然难但还是很有趣，它值得你花费时间为它忙碌，我期待你为

2、它作出贡献，难免介意，避免停止它！,to + 动词原形,He wanted to be an inventor.,Tell her to turn it down.,(object),(object complement),( vt.),(vt.),The infinitive,They have a little food to eat.,To see is to believe.,He came to see me.,(attribute),(adverbial),(subject),(vi.),To dance is a lot of fun.,It is a lot of fun to

3、 dance.,(subject),It is dangerous to play with fire.,To play with fire is dangerous.,To grow trees is very important.,It is very important to grow trees.,a. 不定式用作主语,To play with pets is interesting.,( It is interesting to play with pets. ),To do the job well is not easy.,( It is not easy to do the j

4、ob well. ),It is (was) + adj. + of sb. to ,您能帮助我，真是太好了。,It is very kind of you to help me.,= You are very kind to help me.,你做那样的事是对的。,It is right of you to do that.,= You are right to do that.,对他来说，说声再见是最明智不过了。,It was clever of him to say good-bye.,It is (was) + adj. + for sb. to ,对他来说，说英语很容易。,It is

5、 easy for me to speak English.,对我们来说，努力学习是必 要的。,It is necessary for us to study hard.,b. 不定式放在be 动词后面，用作表语,My dream is to be a doctor.,His task is to find out the cost to travel by train,c. 不定式放在及物动词后，用作宾语,They began to read and write.,He likes to play soccer.,I found it important to learn English.,

6、常见的及物动词有：,want, hope, wish, like, begin, start, try, need, forget, agree, know, learn, refuse, help, etc.,What do you want to be when you grow up?,Would you like to go with us?,I hope to do it myself.,() I hope you to do it your-self.,疑问词 + 不定式,我知道如何煮。,I know how to cook.,我不知道要买什么东西给你。,I dont know w

7、hat to buy for you.,他告诉我如何使用计算机。,He told me how to use the computer.,你能告诉我走哪条路吗？,Can you tell me which way to go?,d. 不定式用作宾语补足语,She asked me to speak more loudly.,Lucy told him not to cry.,Tell her to turn it down.,不定式中省去 to 的情况,感官动词,see , watch,使役动词,look at, hear, listen to, feel,make, have, let,ma

8、ke sb / sth do sth.,我看到她正表演芭蕾。,I often saw her perform ballet.,老板迫使他工作了一整夜.,The boss made him work the whole night.,help sb to do sth. help sb do sth help sb with sth,帮助某人做某事,I often help him (to) clean the room.,a. 不定式在不及物动词后作状语表示目的,Tom came to see me last night.,Later he left home to work in diffe

9、rent cities.,b. 不定式在某些形容词后，作状语表示原因,I am glad to be there.,I am sorry to trouble you.,I am happy to come here.,a. 作定语，放在所修饰的名词或代词之后.,I have a lot of work to do.,Have you got something to say?,They have little food to eat.,They were the first to come to China.,I have some books to give you.,They have

10、a lot of things to talk about.,He is looking for a room to live in.,There is nothing to worry about.,不定式是vi, 后面应有必要 的介词。,something + to do,She has nothing to say.,I want something to eat.,Would you like something to drink?,Is there anything to eat?,something + adj. + to do,Give something hot to drin

11、k.,I need something nice to wear to the party next month.,Do you have anything cold to drink?,我太累了，难于入睡。,小男孩吓得一步也动不了。,The boy was too frightened to move.,I was too tired to sleep.,too + adj. / adv + to do, 太(以致) 不能(做),too for sb / sth to do ,这箱子太沉了,他抬不起来.,The box is too heavy for him to lift.,The bo

12、x is so heavy that he cant life it.,李明太激动了，一句话也说不出来。,Li Ming was too excited to say a word.,Li Ming was so excited that he couldnt say a word.,adj. + enough to do sth. 十分（足够）,他很富有，可以买辆小汽车。,He is rich enough to buy a car.,He is so rich that he can buy a car.,adv + enough to do ,她跑得够快了，完全可以第一个到达。,She

13、runs fast enough to get there first.,She runs so fast that she can get there first.,Exercises,单项选择,Tell him _ the window.,A. shut B. not to shut,C. to not shut D. not shut,B,I dont know _ next.,A. what to do B. to do what,C. which to do D. how to do,A,It is very important _ us _ it. A. to, to rememb

14、er B. for, to remember C. for, remembering D. to, remembering,B,It took us more than two hours _ the dinner. A. prepare B. preparing C. to prepare D. be prepared,C,There is going to _ an im-portant meeting tomorrow. Please try _ late. A. have / not to be B. have / not be C. be / not to be D. be / no

15、t be,C,At last, he decided _ his mother to the hospital. A. take B. took C. to take D. taking,C,The news made us _ sad. A. feeling B. to feel C. feel D. felt,C,Its time for Meimei and _ to work. A. me to go B. I to go C. me going D. I going,A,Would you like _ for me? A. to make a kite B. make a kite

16、 C. making a kite,A,My mother always tells me _ there. A. not go B. not to go C. go D. dont go,B,Mother is ill. Wed better _ her to the hospital. A. to take B. taking C. take D. takes,C,Its very nice _ you to say so. A. for B. of C. to D. in,B,Is there _ in todays newspaper? A. anything important B.

17、 something important C. nothing important,A,What about _ fishing to-morrow? A. to go B. go C. going D. went,C,Only one can have an apple, _ you _ Mary. A. both, and B. not, but C. neither, nor D. either, or,D,The population of Shanghai is larger than _ of Wuhan. A. these B. this C. that D. those,C,W

18、ould you get some chalk for me? _. A. Yes, please B. Why not C. With pleasure,C,I dont know _. A. how to say B. what to say C. to say how D. to say what,B,What about something _? A. drinks B. drink C. drinking D. to drink,D,He was _ clever _ he passed the exam easily. A. too, to B. / , enough C. so, that D. such that,C,The girl wanted to kn