the number of,a number of 的区别及用法

问题描述:

the number of,a number of 的区别及用法

前者连接复数名词后一般可当做单数来用
但后者却必须当成复数来用。

a number of +名词复数
=a lot of =los of+名词复数
the number of+名词复数,但动词用第三人称单数
例句:The number of visitors to Frinley has now increased.(has就是第三人称单数)
Mike is a number of my friends ,he likes eating food
(在这里of后面就要跟名词复数)

the number of单数
a number of 复数