全国大众英语测验语法——默示一…就…的构造
hardly/scarcely…when/before, no sooner…than和as soon as都可以默示"一…就…"的意思，例：
I had hardly / scarcely got home when it began to rain.
I had no sooner got home than it began to rain.
As soon as I got home, it began to rain.
留意：如果hardly, scarcely或no sooner置于句首，句子必需用倒装构造：
Hardly / Scarcely had I got home when it began to rain.
No sooner had I got home than it began to rain.

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