A surprise 大吃一惊
We had just moved into a new school district, when brother was invited to a surprise birthday party. He didn't want to go, however, because he couldn't recall ever meeting the birthday boy.
"Ridiculous!" said my mother. "If he didn't know you, his mother wouldn't have invited you." And with that she packed him off to have a good time. 
When Dave came home, Mom wanted to know how it had gone.
 
"Well," he said glumly1, "We got there and everyone hid behind a couch. Then, when the boy came in, we all jumped up and yelled, 'SURPISE'. And he pointed2 straight at me and shouted, 'Who is he?'"
 
我们刚刚搬到一个新的学区，我哥哥就被邀请去参加一个惊喜生日聚会。他不想去，因为他无论如何也想不起曾见过那个过生日的男孩。
 
“莫名其妙！”妈妈说：“如果他不认识你，他妈妈是不会来要邀请你的。”说着，妈妈就把他送出了门。
 
大卫回到家后，妈妈很想知道聚会开得怎样。
 
“怎么说呢？”他无精打采地说：“我们到会后，大家都藏在一个沙发的后边，等到过生日的男孩一进屋，我们就跳起来喊：“给你一个惊喜哟！”这时，他朝直地指着我问：“他是谁？”