首先你要弄清楚词性,no是形容词、not是副词.no表“无,没有”接名词,等于not one, not a, not any:There is no water in the river. （=not any water）I have no book to read. (=I don’t have a book to read.).但No也有做副词的时候,如回答对方的提问“Are you American”“No, I am not”