区别一:no是形容词,可直接放在名词之前。但若名词前已有the, a(n),any, much, enough等词,则用副词not。如:
正:I have no (=not any) money. 我没有钱。
正:I haven't much money. 我没有很多钱。
误:I have no much (no any) money.
区别二:与形容词或副词的比较级连用时要注意:用not属于一般比较结构,意为“比不上”或“不如”;用no则情况比较特殊,一般说来“no+形容词或副词比较级+than”所表示的意思是该形容词或副词的相反含义。如:
John is not better than Tom. 约翰不如汤姆好。
John is no better than Tom. 约翰和汤姆一样不好(=坏)。
类例:no richer than = as poor as 一样穷
no taller than = as short as 一样矮
no later than = as early as 一样早
区别三:在某些系表结构中,用not只表示一般的否定,用no则语气较强,可译为“决不是”。如:
He's not a poet. 他不是诗人。
He's no poet. 他决不是诗人。
区别四:no和not…any 均可表示完全否定。注意,英语习惯上不说any…not。如:
正:He hasn't any money. 他没有钱。
正:No one came to see me. 没有人来看过我。
误:Any one didn't come to see me.
区别五:非谓语动词的否定式,通常用not而不用no。如:
The teacher told him not to be late again. 老师叫他不要再迟到。
Not having received an answer, he decided to write another letter to her. 由于没接到回信,他决定再给她写一封信。
但在某些省略结构或固定结构中(尤其是用于命令,警告,标牌等场合),表示“禁止”“不许”等意义时,一般只用no。如:
No smoking. 禁止吸烟。
No admittance except on business. 非公莫入。