The pain in her foot wasn’t such as to sTOP her walking.她脚疼，但还不至于不可以行走。
这个句子中的 such as to do sth 是用作表语吧？请问此外，such as to do sth还可以用作什么成分？另外，请专家老师详细介绍一下such as to do sth的使用方法，谢谢！
The pain in her foot wasn’t such as to sTOP her walking.
她脚疼，但还不至于不可以行走。
【剖析】本句，such 是形容词作表语，表示程度；as to sTOP her walking 是不定式作结果状语。
【注】不定式前面的as 跟such或so搭配，说明such，so 表示的的程度达到了某种结果。
本句是“such (名词）+ as to do”的变式。也就是说，such 之后可以跟名词，也可以不跟名词，如此，such 由限定词变成了形容词。比如：
His illness is such as to cause anxiety. 他病得非常重，让人担心。
Her illness is not such as to cause anxiety. 她的病还不至于让人焦虑。
Her madness is not such as to fill her mother with despair. 她还没疯到令其妈妈绝望的程度。
His kindness was such as to make us all love him. 他那样厚道，以至于大家大伙都爱他。
His words are such as to make his friends angry. 他的话已到了使朋友生气的程度。
我做一下句型转换，不定式都是作结果状语。
1. His illness is such as to cause anxiety.
2. He has such a bad illness as to cause anxiety.
3. He has so bad an illness as to cause anxiety.
4. His illness is so bad as to cause anxiety.
