Wh- on earth...? 究竟……

　　用法透视

　　特殊疑问句中加上"on earth"可以加强语气，表示强调，有很强的感情色彩，意思是“究竟……;到底……”。另外，也可以用"the hell; in the world"。

　　支持范例

　　1. Why on earth do you tell a lie?

　　你究竟为什么要撒谎?

　　2. Who on the earth do you think you are anyway?

　　你究竟认为你是什么人?

　　3. Where in the world did you find the lost watch?

　　你到底在哪儿找到那块丢失的手表的?

　　会话记忆

　　A: I've been standing here since half past seven. Where on earth have you been?

　　我从七点半就一直站在这儿等你。你到底上哪儿去了?

　　B: I'm terribly sorry I'm late. I just couldn't help it.

　　真太对不起，我迟到了。不过我实在没办法。

　　A: It's really very easy saying you're sorry.

　　说对不起当然很容易。

　　B: Look, just give me a chance. I can explain it.

　　你别急，给我个机会，我可以解释!