1、as soon as：? [conj.]? (连词)一 ... 就
例句：
（1）I'll write you as soon as I get there.我一到那儿，就给你写信。
（2）Let us start as soon as he comes.等他一来我们就动身。
（3）I gave the alarm as soon as I saw the smoke.我一看见冒烟，就发出了警报。
2、immediately：? [conj.]? (连词)一 ... (就)
例句：
I came immediately I heard the news.我一听到这个消息,马上就来了。
3、once：? [conj.]? (连词)一…就 ，一旦…就… ，一经...便
例句：
You will be awarded once you get in the final competition.你一旦参加决赛，您将获得奖励。
I will call you back once i get home.我一回家就给你打电话。
4、the minute：? [conj.]? (连词)一…就?
例句：
I'll tell her the minute that she comes.她一来我就告诉她。
5、the moment：一 ... 就 ...
例句：
The moment you grasp it, there is a shift in consciousness from mind to Being, from time to presence.你一旦理解了，那么就会出现一个从思维到”存在“，从”时间“到”在场“的意识改变。