Question

高一英语选择题,动词被动形式表状态求解析

____________about her son's future, the mother has been sleeping very badly these months.
A.concerning B.concerned C.To concern D.Having concerned
为什么选B求[【详解】和迁移

Answer 1

高一英语选择题,动词被动形式表状态求解析 ___________about her son's future, the mother has been sleeping very badly these months.
A.concerning B.concerned C.To concern D.Having concerned
为什么选B求[【详解】和迁移答：其实选项B为过去分词短语。它是由原因状语从句：As she is concerned about her son's future，简化省略变化而来。这里的is是系动词，并不是构成被动语态的助动词，过去分词作表语用，相当于一个形容词，表示状态。迁移是：形容词短语在句子中也可以作状语！

Answer 2

be concerned about 是表示状态的短语，故可以省略be 直接把形容词放句首做伴随状语，类似的结构如 Faced with so many questions, he was at a loss.
Located in the north, the school is famous.
Lost in thought, he took no notice of my coming.
Dressed in white, he looked handsome.

Answer 3

其实不是过去分词，并不表被动

妈妈和关心是主动关系

但是这是形容词，be concerned about是系表结构，所以他的非谓语是以形容词形式出现

或者理解成be变成being,省略being

Answer 4

这题考非谓语动词做原因状语，相当于As the mother is concerned about her son's future, she has been sleeping very badly these months. be concerned about 是搭配用法
在这种情况下，可以把引导词，逻辑主语和be 省略。

Answer 5

只有B是被动形式。如果不限制，还可以用A和C。个人感觉语法上D选项也没错，表示持续焦虑，但简单可以用A代替。