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

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
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

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
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.

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。

B，过去分词作原因状语。因为担心儿子的未来，妈妈这几个月都睡得很差。 过去分词很多本来就是形容词的性质。

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 concern...

全部展开

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！

收起

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

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。

选B be concerned about 是个短语。包含Be动词的短语作状语是直接省去Be动词。比如：
Lost in thought, he nearly run into a tree.

be concerned about 是固定搭配，意思是：关心，挂念，此句中作句首状语。