She didn’t work hard enough to pass
the exam.
(表结果)
1.She sells flowers ___ make money. A. made B. make C. to make
2.The room is not big enough ____. A.to live in B. for living C.to live
A.to selling B. sell C. to sell
2. Her hobby is _t_o_p_l_a_y (play) football. = Her hobby is playing football.
3.I want to buy a ticket.
3. 不定式做宾语：即动词+to do的结构中，这里的to do就是做宾语 (做宾语)
e.g. They decided to try again.
The little boy wanted to get to school before 8 o’clock.
1.My friends want ________(book) some tickets to the movie for us.
形式主语
真正主语
（对某人来说）做某事是怎样的
e.g. 对我来说解答出这道题是很难的。 It’s difficult for me to work out the problem. =To work out the problem is difficult for me. =Working out the problem is difficult for me.
55..不I 定ge式t 做up状e语ar：ly常t用o 来ca表tc示h目th的e，b原us因. 或结果。
(做目的状语) 不定式作状语一般表示目的，原因或结果．
I am sorry to hear that. (表原因) Let’s stop to have a rest. (表目的)
The orange are too high to reach.
动词不定式:
即to do ，其否定形式是not to do；不定式没有人称和数的变化。
一.不定式的句法功能
1.It’s normal to cry when we feel sad.
(做主语) 不定式做主语时,常用代词it 来代替不定式结构, 这时 it 被称为形式主语,而作为句子真正主语的 不定式则被后置.往往放v.和adj.之后.
2.She has a lot of work __to__d_o__﹙做﹚ every day . 3. The old man has a house _t_o_l_i_v_e_i_n_ ﹙住﹚. 4. She is a nice person_t_o__ta_l_k_w__it_h﹙谈 话﹚ .
again. A.copying B. copy C. to copy 3.Please let the students___ down. A. sitting B. to sit C. sit 4.—Is Wei Fang good at singing?
--- Yes, she is. We often hear her _____ in her room A.to sing B. sing C. sings
housework. 10. I order you ____ (wash) your hands
但使役动词（let .make .have)和感官动词 (see .watch.look at .hear. feel)的宾补常省略
to
即：V. +sb. +do
He often makes his sister wash his clothes. I see the little girl run into the school.
8. 只能跟ving 的动词：
❖finish, enjoy, mind, keep(on), practise, feel like(want), be busy doing . give up, look forward to doing, can’t help doing,
1. I can’t help _____ (cry) . 2. He didn’t finish ____ (do) homework. 3. Would you mind ____ (close) the window. 4. Every day Mary practise ______ (speak) English. 5. Kangkang is busy _____ (watch) TV now. 6. I look forward to ___ (hear) from you. 7. They keep ____ (play) basketball. 8. My sister feels like ______ (eat) ice cream.
3. I’m sorry ______ you . A.hit B. to hit C. hitting 4. He is too young ___ (go) to school.
6. 作定语(后置）
6. 不定式做定语：用来修饰前面的名词或者不定代词。
I have something _t_o_s_a_y__ ﹙要说﹚.
e.g. To learn English well is not easy. = It’s not easy to learn English well.
It’s + adj. (+for sb.) +to do sth.
1. 不定式做主语：
常用句型：It’s + adj. (+for sb.) &#做k宾an语g补h足e语lp：e即d 动us词+tosbl.e+atorndoE的n结g构lish.
中，这里的to do就是做宾语补足语 (做宾语补足语)
动词不定式作宾语补足语,常见的动词有 tell , ask , get, want , would like , wish , teach , help , order ,invite, get, allow, send, lead 等.常构成下面的句式： V + sb. + to do
注意： He is looking for a room to live in ． 他在找一个房间住。 There is nothing to worry about． 没什么可担心的。
Please give me a pen to write with． 请给我把笔来写东西。
不定式和宾语之间有时候必须加上相应的介词，才能构成完 整的动宾关系。
接动词不定式作宾语常见的几个动词是want , plan , hope , decide , begin , start. need , wait ,would like .hate. refuse. wish . prefer , learn. try. like .agree ,fail. be able to do, do/try one’s best to do 等.
7. 疑问词+ to do 构成短语。 We don’t know when to leave Beijing. Can you show me how to swim. He didn’t tell me when to leave.
1.Joe is teaching Alice ______the chair. A.how mend B. how mending C. how to mend 2. I don’t know what____ (do) next. 3. Could you tell me when ____ (have)
其否定形式为：
V +sb. not +to do
I asked Paul to carry the box.
She told me not to give the book to him.
1.Don’t ask Jim ___(go) swimming with us, because his mother won’t allow him ____(do) so.
9. 既可以跟动词不定式 又可以跟Ving 的几组动词
❖而意思无太大区别的：
❖like to do ❖like doing ❖prefer. hate begin start …….
dinner?
8. 在学习不定式中,我们需要注意些什么呢?
1）记住基本形式: to do 否定: not to do
2） to do 是非谓语动词,没有人称和数的变化,不能充 当谓语. 但可以和系动词构成系表结构.如: My dream is to be a doctor. 3）感官动词see, watch, hear, feel等和使役动词make, let等接do作宾语补足语时,do 称为不带to的不定式如: Do you often see him play tennis on the playground? 4）充当后置定语时,要特别注意动词的不定式短语中 的介词不能省去.如: The old man have no house to live in.
2. My parents decide _____ (give) me more money.
3. He plans _____ (go) to Beijing for a holiday.
4. The boy hopes ______ (pass) the English exam. 5. My little son is able _____ (read) some words. 6. I’ll try my best _____ (help) you. 7. She would like _____ (become) beautiful.