1）let make have（有时候）
如：I let her borrow my book.
She made me promise to write every day.
The teacher often has his students read aloud in class.
2)感官动词：feel hear see watch
如：I saw her talk to her new friends.
3）would rather had better why not
如：I would rather go swimming.
You had better tidy your bedroom
Why not visit your cousin in Japan?
注：感官动词后可以接v-ing
如：I saw her talk to her new friend. (见证谈话的整个过程)
I saw her talking to her new friend. (见证谈话正在发生，但不一定见证整个谈话过程)
2．当有and, or, except, but, than, rather than, 连接两个动词不定式时，后一个不定式往往省略to。
如：She told me to be cheerful and look on the bright side.
Do you want to go shopping or watch a film?
We had nothing to do but watch TV?
I decided to write rather than phone.
三 V-ing 作名词
1．V-ing可以充当名词用。可以被用做：
1）做主语（指一般性的动作）
如：Swimming is good for your health.
2）做宾语（指一般性的动作）
如：I love swimming in the sea during the summer.
3) 介词之后
如：I keep fit by swimming every day.
4）物主代词之后
如：Her swimming has improved since she started training every day.
注：如果所谈论的人比较明确，那么物主代词可以省略。
如：Thank you for coming.
5）组成复合名词
如：There is a shoe in the swimming pool.
2．以下动词后面接v-ing
Admit dislike imagine delay consider mind understand avoid enjoy practice miss finish keep suggest
3．以下常用词组后面接v-ing
Would you mind cannot help look forward to feel like cannot stand it is no use/good put off keep on
如：Would you mind helping me with my homework?
I cannot help wondering why she does not like me.
I look forward to seeing you at the party.
I don t feel like doing anything now.
