none用来回答什么

用来回答否定的意思,表示没有.
1.一点儿也没;一个也没[(+of)]
I wanted some more cold meat but there was none left.
我想再吃些冷盘肉,可是一点也不剩了.
He had none of his brother's boldness.
他一点都不像他哥哥那样有魄力.
2.没有任何人(或物)[(+of)]
None of the telephones are/is working.
所有的电话都坏了.
None of them speak(s) English.
他们都不会讲英语.
3.无一人;无一个
None would take the risk.
谁也不愿冒此风险.