surprise+ed后跟那些介词

surprised 形容词，意思是“感到惊讶的”。 

常用结构：

be surprised at sth 对某事感到惊讶

 We were surprised at his arrival（到达）

 be surprised to do sth 做某事而感到惊讶 

She was surprised to find her handbag missing.

 be surprised + that从句 因...而惊讶 

I was surprised that these houses stay up for such a long time. 让我惊讶的是，这些房子呆这么长时间。