文档介绍：动词不定式
动词不定式》PPT课件
肯定： to + 或者 (to)+
否定：not/never + (to) +
He likes to read novels.
I saw him come.
We decided not to buy that house.
4) It is interesting to fly a kite.
5) Please let him not go there.
动词不定式的结构
动词不定式》PPT课件
作主语
To hear your voice is so nice.
To study hard is very important.
It is so nice to hear your voice.
It is very important to study hard.
不定式作主语时，通常用it作形式主语，
把真正的主语放在后面。
注意:
1、It is +adj. for/ of sb. to do sth.
不定式做主语 谓语动词用单数
动词不定式》PPT课件
It +be + adj. +for/of sb. to do sth.
for: （important/ necessary / interesting 等.）
of: adj. 多为 描述主语的品质特征 （kind / nice / friendly / wise / foolish 等.）
作主语
It is easy _______ her to learn English well.
It is clever ________ you to solve the problem.
of
for
动词不定式》PPT课件
2、It takes sb. some time to do sth.
It takes me three hours to finish the homework every day.
作主语
我每天花去三个小时完成家庭作业。
I spend three hours finishing the homework every day.
动词不定式》PPT课件
3、It is + n. (for sb) to do sth.
It is my pleasure to help you with your English.
作主语
动词不定式》PPT课件
4、用在谚语中
To see is to believe.
To say is easy, but to do is hard.
作主语
动词不定式》PPT课件
1、It is necessary ______us to learn to wait.
(of/for)
2、It was careless ______me to break the cup .
（of/for)
3、It took them 1,000 yuan _________this
table. (buy)
4、It is my pleasure _________ the box for you.
(carry)
to buy
for
of
to carry
练****br/>动词不定式》PPT课件
5、轮到我们打扫教室了。
It is our turn_________________________
6、To waste time is to shorten life. （翻译成中文）
to clean the classroom.
浪费时间就是缩短生命。
练****br/>动词不定式》PPT课件
1、动词+ to do sth.
常用动词有：
want / wish / like / would like / hope / plan / try / decide / learn / need / agree / begin / start / forget / remember / manage / seem / fail/ manage/ promise等
1、I hope to finish it tomorrow .
2、She plans to go and teach in the country.
作宾语
决定 学****有) 希望， 设法 拒绝 想 假装
主动 答应 选 计划， 同意 请求 帮一帮
动词不定式》PPT课件