none是三者以上吗

是的，none可以指人或物，指三者或三者以上。例句：It was noticeable that none of the family were present.很明显这一家没有人在场。

例句

1、None of the passengers were badly hurt.

乘客中没有人严重受伤。

2、None of us knew how to treat her.

我们没有人知道该如何对待她。

3、None of this would have been possible without their help.

如果没有他们的协助，这事没有一样能办成。

4、My private life is none of your business.

我的私生活与你无关。

5、He repeated none of the errors he'd made first time round.

他没有重复过首次所犯下的任何错误。