动词不定式课件

课件16张PPT。动词不定式 定义构成 用法 动词不定式是非谓语动词的一种，它没有人称和数的变化，在句子中不能独立作谓语，但它仍保持动词的特点，既可以有自己的宾语和状语。 动词不定式 的构成：
to+动词原形 动词不定式 的用法动词不定式具有名词、形容词和副词的特征。因此在句中可以做主语、表语、宾语、宾语补足语、定语和状语。
本单元学习不定式做宾语和宾语补足语。 功能： 作宾语补足语 作宾语动词不定式作宾语 后面能接不定式作宾语的动词有：agree, begin, like, love, prefer, start, ask, choose, decide, forget, hope, learn, study, remember, try, plan want, wish, would like，dare等。如：


注意 我们希望天黑以前到那儿。We hope to get there before dark.那个姑娘决定自己做那件事。The girl decided to do it herself.动词不定式作宾语的注意事项（2点）1．有些动词既可跟不定式作宾语，也可跟动名词作宾语，但含义不同：
2．不定式作宾语时，如带有宾语补足语，则要把不定式放到后面，用it作形式宾语，构成“主语+动词+it+宾补（形容词、名词）+不定式”结构。
remember to do
remember doing
forget to do
forget doing
stop to do
stop doing
go on to do
go on doingI remember seeing you somewhere before.
记住要做某事；记得曾经做过某事忘记要做某事忘记曾经做过某事停下来去做某事停止做某事继续做另一件事继续做原来在做的事我记得以前在哪儿见过你。Please remember to turn off the light when you leave.离开时请记得关好灯。动词不定式作宾语的注意事项（2）如：
He found it very difficult to get to sleep.
他发现很难入睡。我们都觉得今天告诉他这个消息是很重要的.We all think it important to tell him the news today.你觉得爬上这座山难吗?Do you think it difficult to climb the mountain? 动词不定式作宾语补足语 1．后面能接to不定式作宾语补足语的动词有：show, ask, order, teach, tell, want, wish, help, leave, hate, get, choose, advise, would like等。



老师要我们做练习一。
我要你们俩去。
我们帮助她修理自行车。The teacher told us to do Exercise 1. I want both of you to go.
We helped her (to) repair her bike.动词不定式作宾语补足语 2．使役动词let, have, make及感官动词see, watch, notice, hear, feel, find等要以不带to的不定式作宾补。
Let’s have a rest. 我们休息一会吧。
I saw him come in. 我看见他进来了。

感官动词后既可跟不带to的不定式作宾补，也可跟v-ing作宾补，前者表示动作的全部过程已结束；后者表示动作正在进行。
I saw him come downstairs.我看见他下了楼。（说明他下楼了这件事）
I saw him coming downstairs.我看见他在下楼。（说明他下楼时的情景）注 意1) 动词不定式的否定形式 动词不定式的否定式是在to前加not；不带to的不定式则在动词前加not. 如：
Zhang Ming asked me not to stay at home all day.
张明要我不要整天呆在家里。
My mother let me not do it by myself.
妈妈让我不要独自做这件事。
2) 疑问词+ 不定式 形式 Let me tell you where to go now. 我不知道怎样回答你的问题. I don’t know how to answer your question.我想知道该怎样做. 我想知道该做什么. I want to know how to do it. I want to know what to do.( )1.The policeman told the boy______ a kite in the street.
A.not fly B.don’t fly C.doesn’t fly D. not to fly
( )2.Here is your hat. Don’t forget________when you_______.
A.to put it on , leave B.to put on it , leave
C.putting on it , will leave D.putting it on , will leave
( )3.His granny was very tired. She had to stop_______ a rest.
A. have B.to have C.having D.had
( )4.The radio is too noisy. Ask him_____________.
A.turn it up B.turn it down C.to turn it down D. turns it up
( )5.He wanted_______ a computer.
A.to buy B.bought C.buy D.buying
( )6.Look out! The traffic is moving fast. It’s_____dangerous____
cross the road.
A.very, to B.so, to C.much, to D.too , to
( )7.John is_________ climb the high wall.
A.too brave to B.enough brave to C.brave enough to D.so brave to
( )8.What makes it________ up and down ?
A.move B.to move C.moved D.movesDA BCADCA选择题动词填空
1.He often sees his pupils_______(play) football on the playground
2.Please tell your sister_________(come) here quickly.
3.Her mother told her____________(not read) in bed.
4.He found it hard__________(catch) up with his class.
5.Li Ming was too tired, so he stopped ______(have) a
rest.
6.Remember______(tell) him about it before he goes away.
7.Let’s_______(watch) them play basketball, shall we ?
8.I want ________(take) these books to the classroom.
9.He made faces_________(make) the baby_________
(stop) crying.playto tellnot to read to catch to have to tell watch to take to make stopExercise ： 1 改错 A
The baby wants cry.
The boy had go see a doctor.
Liu Yi saw you to take the bow away.
The teacher told the students to not make any noise.
We found the exercise difficult do without the teacher’s help.B
He was very glad went to the Great Wall.
Mary tried her best not show her anger.
Tell the truth, I don’t want speak anything.
Mr. Wang made Minghua to do his exercises a again.
I really don’t know how answer it.
I went there ___ him. A. to saw B. seeing C. and see D. to see
English is not easy ___. A. learning B. learnt C. to learn D. learn
He must be very rich ___ it. A. to buy B. buying C. and bought D. and buy
It is ___ difficult to understand. A. so B. very C. too D. quite
Last summer I took a course on ____. A. how to make dresses B. how dresses be made C. how to be made dresses D. how dresses to be madeHe did not tell me __ to do next. A. what B. how C. when D. where
Tell him ___. A. not come B. not coming C. not to come D. to not come
I’d like ___ a talk with you. A. to have B. having C. have D. had
I saw Mary ___ the house. A. open the door and come in B. to open the door and come C. open the door and to go into D. open the door and went in
You’ll do well ___ more slowly. A. to speak B. speaking C. and speak D. speak2 选择 AB