高中分析句子结构,we are at a loss as to explain the details其中to expl

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/26 03:29:34

高中分析句子结构,
we are at a loss as to explain the details
其中to explain the details 是不定式的什么用法?

从我个人的知识层面来讲,我觉得这个句子结构上要这样划分
we // are at a loss // as to explain the details
we 是主语
are at a loss 是谓语（类似系表结构）
as to explain the details 是状语
在理解句子意思时我觉得这样划分看句子会比较好理解
we // are at a loss // as to // explain the details
as to 是关于至于为了的意思
我不是很赞同to explain the details 是不定式的什么用法,不定式是英语动词的一种形式.
再问：可是如果把as to看作介词短语的话，后面不是应该跟动名词explaining更为恰当吗？
再问：？
再答： as to 是不能看作是介词短语的吧介词短语是要介词+代词/名词很明显as 和 to都不可能是代词或者名词
我认为as to 在这里的用法是状语从句的引导词是用来引出后面的explain the details这个状语
像He cleared his throat as if to say something. 这个句子我觉得。。。跟你的上面这个句子差不多

有疑问可以继续交流哩~

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