文档介绍：Infinitive
动词不定式
《动词不定式》课件
知识梳理
形式
主动式
被动式
与谓语动作的关系
一般式
to do
to be done
动作发生在谓语动作之后
进行式
to be doing
/
与谓语动作同时发生
完成式
to have done
to have been done
动作发生在谓语动作之前
《动词不定式》课件
Pick out the infinitives in the sentences and tell their functions.
He pretended to be reading attentively when I came in.
It is of great help for us to learn English well.
I didn’t expect Mary to invite me to her birthday party.
She listens to news every day so as to find out what’s going on.
The car to be bought is for his sisters.
The important thing in life is to have a great aim, and the determination to attain it.
( 宾语）
( 主语）
( 宾补）
( 状语）
( 定语）
( 表语）
不定式可作主、宾、表、定、状、补语。起名词，形容词和副词的作用。
归纳
不定式
《动词不定式》课件
不定式在句中的作用
It is necessary to tell him the truth.
To tell him the truth is necessary.
主语
练****br/>1. 再次见到你真高兴。
It’s nice/good / a great pleasure to see you again.
2. 他们那样做是不明智的。
It is unwise___________________.
It is + n/ adj. ( for/of sb.) to do
To give up smoking is right.
It is right to give up smoking.
不定式的用法
of them to do like that
《动词不定式》课件
不定式在句中的作用
2. I need to attend the meeting.
宾语
练****br/>他们决定周末去野餐。
They have _______________________at the weekend.
She wants to see the new movie.
decide,/determine, learn, want, expect/ hope/wish, refuse, manage, care, pretend, offer, promise, choose, plan, agree, ask/beg, help/ afford, strive, happen, wait, threaten
他拒绝借给我自行车。
They ______________me his bike.
不定式的用法
decided to have a picnic
refused to lend
V+ to do (5+3P60)
决心学会想希望,拒绝设法愿假装.
学会答应选计划,同意请求帮一帮.
《动词不定式》课件
不定式在句中的作用
3. Have you got any questions to ask?
I have no chair to sit on.
练****br/>没什么可担心的。
There is nothing to worry about.
定语
Betty是第一个知道真相的人.
Betty was the first to know the truth.
不定式的用法
修饰抽象名词如：ability, answer, reply, chance, excuse, idea, moment, reason, time , promise, attempt, way 等+to do(5+3P61)
我没机会外出观光。
I have no chance to go sightseeing.
《动词不定式》课件
不定式在句中的作用
4. The best way to learn English