aboutherson'sfuture,themotherhasbeensleepingverybadlythesemonths.为什么是concerned而不是concerning（老师不好意思刚刚点太快了,还有几个问题没问）问题1：concernabout和beconcernedabout有区别吗?为

Question

______about her son's future,the mother has been
sleeping very badly these months .为什么是concerned而不是concerning（老师不好意思刚刚点太快了,还有几个问题没问）问题1：concern about 和be concerned about有区别吗?为什么可以省略be,就是说这种句子语法是什么?能多举一些例子吗.

Answer 1

其实你已经回答了自己的问题,be concerned about 关心,在乎,所以用concerned
至于你说的省略be的问题是这样解释的：这里的concerned是一个形容词,是动词的过去分词作原因状语,由于从句的主语和主句的主语一致,可以省略主语和部分谓语（一般就是指be动词）,原句补全是 Because she
is concerned about.),变成了非谓语动词的用法,再如
Lost in thought,she didn't notice her teacher.
Dressed in red,she looked very attractive