1.It’s for sb.和 It’s of sb.
1)for sb. 常用于表明事务的特征特色,表明客观方式的形容词,如easy, hard, difficult,interesting, impossible等:
It’s very hard for him to study two languages. 对他来说学两门外语是很难的。
2)of sb的句型一般用表明人物的性情,道德,表明片面爱情或情绪的形容词,如good, kind, nice, clever, foolish, right。
It’s very nice of you to help me. 你来帮助我,你真是太好了。
for 与of 的区分办法:用介词后边的代词作主语,用介词前边的形容词作表语,造个语句。假如道理上通畅用of,不通则用for。如:
You are nice.(通畅,所以使用of)。
He is hard.(人是困难的,不通,因而使用for。
留意:在被动语态中则to 不能省掉。
I saw him dance.
=He was seen to dance.
The boss made them work the whole night.
=They were made to work the whole night.
4) would rather,had better:
5) Why… / why not…:
6) help 可带to,也可不带to, help sb (to) do sth:
7) but和except:but前是动词do时,后边呈现的动词用不带to的动词不定式。
8) 由and, or和than衔接的两个不定式,第二个to 能够省去:
9) 通常在discover, imagine, suppose, think, understand等词后,能够省去to be:
He is supposed (to be) nice. 他应该是个好人。
2) Paul doesn’t have to be made ___. He always works hard.
A. learn B. to learn C. learned D. learning
答案:B. make后接不带to 的动词不定式,当其用于被迫时,to 不行省掉。