1、No sooner . than=scarely . when = hardly . when 刚. 就.一.就.这三个短语与as soon as 的中文意思类似。

2、只不过,as soon as 要主将从现前三个短语要与过去完成时态连用。

3、例如:I will let you know as soon as he comes.( 主将从现)I had no sooner come back than it began to rain.=I had hardly come back when it began to rain.=I had scarely come back when it began to rain.我刚回来就开始下雨了。

4、(与过完连用)此外,no sooner, hardly, scarely 放于句首,引起倒装。

5、上面的例句可以改成:No sooner had I come back than it began to rain.=Hardly had I come back when it began to rain=Scarely had I come back when it began to rain.