He has never been concened about what other people think of him.

题目

He has never been concened about what other people think of him.
其中about有什么作用
句子应分成几部分怎么理解?

答案

be concerned about 固定短语
他从不担忧别人怎么考虑他.
what以后的部分充当考虑的宾语,一个宾语从句,使用陈述语气
think of 认为,考虑
定语从句有先行词,此句并无先行词,并且定语从句中先行词充当一定成分
what 为引导词,引导宾语从句,后接陈述语气
此句为宾语从句