96　all和all of

　all 和all of 均可放在有限定词（如冠词、物主代词等）修饰的名词前，但如果名词前没有限定词，要用all ，而不可用all of。

Have you done all your homework？ 你的家庭作业都做完了吗？

It rained all the time we were on holiday. 我们放假的时候总是下雨。

All of the trees need watering. 所有这些树都需要浇水了。

She stayed in her room all day. 她一整天待在房间里。

All of students have gone for an outing. （误）

All of the students have gone for an outing. （正）全体学生都去郊游了 。

提示

all of后可接宾格人称代词(us, them, you)，而all则不可。

All of them agreed with me about this issue. 他们都同意我关于这个问题的看法。