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
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
答
你的句子有错误，be surprise to 后面应是动名词，to是介词
答
此句以为“他惊讶地发现他的房间被彻底打扫一新。”
这里的be surprised to do sth. 指意外地发现某种情况，作谓语。
主语He，谓语be surprised to find，宾语his room thoroughly cleaned，名词成分。
答
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...
答
to find his room thoroughly cleaned是不定式作原因状语, 说明他 surprised 的原因.
句意: 发现他的房间被彻底地打扫了,他感到很惊讶!