1、有连词as soon as ;hardly(had)...when ;No sooner(had) than 副词immediately;instantly ,介词on(doing)...名词the moment ;the minite;the second;the instant ;等引导 。

2、 如：As soon as he arived ,he said hello to me= Hardly had he arrived when he said hello tome =He had hardly arrived when he said hello to me =immediately he arrived ,he said hello to me =On his arrival ,he said hello tome=On arriving,he said hello to me =........As soon as I aboarded the plane ,I felt sick(其它你按我上面的例子，自己变吧！。

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