Japanese food is widely regarded as being very healthy.

问题描述:

Japanese food is widely regarded as being very healthy.
为什么这句话as后面要加being,直接说成 regarded as very healthy不接好了吗?

两种方式都可接受.咱们改成主动式看看:
People widely regard Japanese food as being very healthy.
此处的介词短语as being very healthy作宾补,这个地方很特别,可以说being可省略或者说此处as后可以直接接形容词,这种句子课本上有不少.如:
He is regarded/considered as (being) honest.