动词不定式的复合结构:
1.不定式的复合结构是指有些动词带宾语后再带上不定式,作宾语的补足语.在这种结构中宾语是不定式的逻辑主语.
We are waiting for the bus to come.
They voted for Wang Gang to be the monitor.
Don't count on me to do that.
2.在make,let,have,see,hear,watch,notice,feel等动词后的复合宾语中不定式不带to:
In a minute you'll see the sun rise.
I'll have him call you right back.
He watched the people go by.
但是这种句子在变为被动结构时,不定式必须带to:
The were made to work day and night.
Someone was heard to come up the stairs.
3.“for(或of)+ 名词(代词)+ 动词不定式”,这种结构在句中可作主语、表语、宾语、定语和状语:
It is difficult for a foreigner to learn Chinese.(= To learn Chinese is difficult for a foreigner.)
I'm surprised to find it easy for them to work ou it in a short time.
在表示人物性格、特征等形容词后面常用of:
It's kind of you to say so.(You are kind to say so.)