不定式作定语,补语和状语

你明白句子成分就行了，状语，定语，补语。

定语:This is a problem to be considered further.

补语：I have some urgent things to handle right now.

状语：He joined to army to get more experiences.

一 作主语 To see is to believe.
1. It be adj. \ n. to do sth.
It’s good to see you.
It’s difficult to learn maths well.
2. It takes sb. some time to do sth.
1 跳舞非常有趣。To dance is a lot of fun.=
2 种些植物是非常有必要的。To grow plants is very important.=
3 说英语对我来说并不容易。To speak English is not easy for me.=
4 听到你的声音真高兴。To hear your voice is so nice.=
二 作表语
To see is to believe.
他的愿望是成为一名医生。His wish is to be a doctor.
1 我的工作是每天打扫这间屋子。
My work is to clean the room every day.
2 最上策的计划就是马上离开这儿。
The best plan is to leave at once.
3 我的梦想就是成为一名科学家。My dream is to be a scientist.
三 作宾语 (v. + to do )
I want to buy a computer.
She hopes to find a better job.
I wish to go with you.
need to do le