surprised用法和固定搭配

surprised可以视为形容词 也可以当做过去式或过去分词

当形容词使用时，一般是修饰人be surprised to do sth/be surprised at sth

I am very surprised at this news.

He was so surprised to hear this surprising news.

也可当动词过去式使用

What he said surprised me a lot yesterday.

surprised是形容词，多以人做主语，意思是对…感到吃惊。

固定搭配一般使用是be surprised at，意思是对…感到吃惊。