为什么是be surprised at不是be surprised in？

Question

如题所述

Answer 1

因为be surprised at表示对什么感到惊讶，是固定搭配，用介词at而不是in。

例句：
This is nothing to be surprised at.
这是不足为奇的。

She had been surprised at how amiable and polite he had seemed.
看到他如此和蔼可亲、彬彬有礼，她非常惊讶。

She gazed up at him, blinking once or twice, apparently surprised at his cleverness.
她抬头注视着他，偶尔才眨一下眼睛，显然对他的聪明才智颇为惊讶。

This lady was genuinely surprised at what happened to her pet.
这位女士对发生在自己宠物身上的事感到非常惊讶。

What's there to be surprised at?
有什么值得大惊小怪的？追问

为什么是这种搭配

Answer 2

　　1、be surprised in严格的讲be surprised in不是习惯短语.也没这样的习惯用法.所以不好举例.

　　2、be surprised at somebody/something/doing something对某人的行为/某事/干谋事感到惊讶

　　I am surprised at you.我对你的行为跟到惊讶.

　　I was surprised at your tone.我对你的腔调吃惊不小.

　　I was surprised at seeing/to see him there.我真想不到在那里见到他.

　　3、be surprised to do something对干某事感到很惊讶

　　I'm surprised to hear you say that.我真想不到听到你说出这番话来.

　　可以看出,be surprised to do something跟be surprised at doing something意思一样.追问

为什么没有be surprised in