so that的用法如下：
1、so......that...... ：如此……以致于……。
2、......so that...... 以便于......，为了......。
3、“so......that......”句型的意思是“如此、这么……以致于……”,常引导结果状语从句。
4、so that 意为“以便”，“结果”，可以引导目的状语从句和结果状语从句。
5、so that 引导目的状语从句时，在从句中往往有 can，could，may，might 等情态动词，通常主句在前，从句在后，主句和从句之间没有逗号隔开。
6、so that 引导结果状语从句时，从句之前常有逗号与主句隔开。
相关例句：
1、They set out early so that they might arrive in time.
他们出发得早，以便能及时到达。
2、They set out early, so that they arrived in time.
他们很早动身，因此及时到达。
3、he is so young that she can't look after herself.
他太小了，所以她不能照顾自己。
4、The boy ran so fast that I couldn't catch him.
那个男孩跑得太快了，我追不上他。
5、He was so angry that he couldn't say a word.
他气得一句话也说不出来。
6、He has so much money that he can buy what he wanted.
他有这么多钱，可以买他想要的东西。
7、I've had so many falls that I have pains here and there.
我摔了很多跤，所以到处都疼。
8、There is little water in the glass that I can't drink any more.
杯子里几乎没有水了，我不能再喝了。
9、I got up early so that I could catch the early bus.
我起得很早，以便能赶上早班车。
10、Please open the window so that we can breathe fresh air.
请打开窗户，让我们呼吸新鲜空气。