being在句中起什么作用,这句话怎么理解呢,.Human being often throw away things they have used only once.我不明白这里的being是什么用法,

问题描述:

being在句中起什么作用,这句话怎么理解呢,.
Human being often throw away things they have used only once.我不明白这里的being是什么用法,

1.“Human being ”是个固定词组,指“人类”.
2.human 和human being的区别:
有以下区别:
(一)human强调“人群”,human being强调“个人”,
基本上 human = human beings ,但不可以说 human = human being
(二)在一些惯用的表达,两者不能互换,例如疾病的“人传人”叫human to human transmission,但不可以说 human being to human being transmission.
(三)human可以做形容词,human being不可以.