高中英语之非谓语动词作主和表语思维导图

主动态 to do; 被动态 to be done

主动态 doing; 被动态 being done

例1：To act like that is foolish.

例2：It is impossible for me to buy the car with cash. 要我用现金买那辆车是不可能的

It is impossible for me to buy the car with cash. 要我用现金买那辆车是不可能的。

Walking is a good form of exercise for both young and old

Driving to the office was very slow this morning because of heavy traffic.因为交通拥挤，今早开车上班非常慢。

It is no good doing.（……没有用）

There is no doing. （……不可能）

1．Your task this morning is to deliver the mail to Professor Smith. 你今天上午的任务是把这个邮件送给史密斯教授。（不定式解释主语内容）

2．My hobby is collecting stamps. （动名词解释主语内容）