hardly … when …

结构︰

hardly/scarcely … when/before …

说明︰

此句型意为“一…就…”。为<副词><连接词>，引导<副词子句>，修饰<主要子句>。hardly，scarcely 为<否定副词>，置于句首时，<主语>与<助动词>必须倒装。

John had hardly opened the door when his guests arrived.
约翰刚打开门他的客人就到了。
Scarcely had I washed the car before the sky rumbled with thunder.
我刚洗车天空就打雷了。
Hardly had I gone out of the hotel when I met my friend.
我刚走出饭店就遇见了我的朋友。
Scarcely had she heard the sad story when she burst out crying.
她一听到这悲伤的消息，就失声痛哭。