"让他很惊讶"可以用英文表示为"surprise him"或者"startle him"。
"Surprise"是英语中一个常见的动词，意思是"使感到惊奇、惊讶或意外"。它来自拉丁文"surprehendere"，意思是"抓住、捕获"。
例句：
The surprise party for her birthday really took her by surprise.（为了庆祝她的生日，我们为她准备了一个惊喜派对，她真的很惊讶。）
He was surprised to find out that he had won the lottery.（他很惊讶地发现自己中了彩票。）
"Startle"也是一个常见的动词，意思是"使惊恐、惊讶或吃惊"。它来自拉丁文"exstremere"，意思是"把……拉出去、拽出来"。
例句：
The loud noise startled me and I jumped.（巨大的噪音吓了我一跳。）
The sudden appearance of the snake startled him and he fell over.（蛇突然出现，他吓了一跳，摔倒在地。）