1.as long as其实有三个意思:1) 只要 = so long as = while如:You'll succeed as long as you work hard.只要你好好学习,你就会成功的.2)(长度上)和...一样长 / 长至...(程度)/ 长达...如:The room is as long as 10 meters.这个房间长达10米.3)(时间上)和...一样久 / 久至.../ 长达...如:I've lived here as long as 20 years.我在此处居住长达20年之久.2.as soon as 一...就...,引导时间状语从句.此时主从句或者遵循“主将从现”的原则,或者都用一般过去时.如:1)I'll call you as soon as I arrive there.我已到达那儿,我就会给你打电话.2)As soon as the thief saw the policewoman,he ran away at once.那个小偷一看就那名女警,他就立马逃之夭夭了.