请帮忙分析下这个句子中动词不定式在句中的成分

问题描述:

请帮忙分析下这个句子中动词不定式在句中的成分
He was surprised to find his room thoroughly cleaned

典型的 主语+ be + adj + 动词不定式 结构,这里的动词不定式是作状语,表原因这种句型可以转换为另一种表达,便容易理解了 He was surprised to find his room thoroughly cleaned.=He was surprised when he found hi...