no可作为形容词,也可用作副词;not只可用作副词。no用作形容词时,可直接置于名词前。如果名词前已有a, an, the, his, much, any等词时,则应该在这些词前面加not。
作副词时,no有下列两种用法:
1.作为yes的反义词,用在回答问题的场合,表示“不”的意思。例: No,I won't go to the zoo. 不,我不去动物园。
2.用在比较级之前,表示“并不”之意。例:
The weather today is no better than it was yesterday. 今天的天气并不比昨天好。
用作形容词时,no表示not any的意味。例: There is no(=not any)time to lose. 时不可失。
当no用作形容词时,可直接放在名词之前,如果名词的前面有a、any、much、many、enough等词,就要改用not,不用no,因为not是副词,只有副词才有资格修饰a、any、much、many、enough等词。因此,我们说: I have no money.或I have not any money.
作名词时,no表示“否定”的意思。例: Two noes make a yes. 否定的否定就是肯定。
not可用于:
1.修饰动词
I do not know any of them.
这些人我一个都不认识。
2.修饰形容词:
It's not cold today.
今天天气不冷。
3.修饰不定冠词:
Three decades ago not a year passed without a number of people falling victims to hunger here.
三十年前,这里每年都有不少人死于饥荒
4.修饰副词:
Not seldom did I go to Victoria Park while I stayed in Causeway Bay.
我住在铜锣湾期间常到维多利亚公园去。
5.修饰连词:
They are working hard not because they want to make money but because they know what they are working for.
他们在努力工作其原因并非是为了赚钱,而是在于他们知道为何而工作。