one的用法：
none 與 no one / nobody 及 nothing的用法區(qū)別
no one / nobody 常用來(lái)指人，作主語(yǔ)時(shí)謂語(yǔ)動(dòng)詞要用單數(shù)形式；nothing 常用來(lái)指物，作主語(yǔ)時(shí)謂語(yǔ)動(dòng)詞也要用單數(shù)形式；none 可指人也可指物，作主語(yǔ)時(shí)，如和 of 連用指不可數(shù)名詞時(shí)，謂語(yǔ)動(dòng)詞要用單數(shù)形式；指可數(shù)名詞時(shí)，謂語(yǔ)動(dòng)詞用單、復(fù)數(shù)均可。如：
No one likes a person with bad manners.
Nothing is difficult in the world if you put your heart into it.
None of them has / have seen me before.
None of this money belongs to me.