人是可数名词还是不可数名

例句：

Some people hooted in disgust.

有些人厌恶地大声嚷嚷。

People stood around in huddles.

人们三五成群地到处聚集着。

A thousand people were there.

那里有一千人。

Active people stay more limber.

爱运动的人身体更灵活柔软一些。

Why do people paint pictures?

为什么人们要画画？

Only a handful of people came.

只有少数几个人来了。