so that既可引导目的状语从句，也可引导结果状语从句。So……that……引导的结果状语从句的结构：主语+谓语动词+so+adj（形容词）/adv（副词）+that从句。

相关介绍：

(1)引导目的状语从句

Bring it closer so that I may see it better. 把它拿近点儿，让我仔细看看。

He studies hard so that he can pass the exam. 为了能通过考试，他学习很努。

I am going to the lecture early so that I’ll get a good seat. 我想早点去听演讲，以便找个好座位。

She worked hard so that everything would be ready by 6 o’clock. 她拼命干以便能到6点时把一切都准备好。

(2)引导结果状语从句（前面有时可以用逗号）

We’re all here now, so that the meeting can begin at last. 我们现在都到齐了，终于能开会了。

I went to the lecture early so that I got a good seat. 我去听演讲去得很早，所以找个好座位。

Nothing more was heard from him so that we begun to wonder if he was dead. 再也没有听到他的`消息，因此我们有些怀疑他们是否死了。

The term and condition are printed in very small letter so that they are difficult to read. 条款与条件是用很小的字体印刷的，以致难以阅读。