一、in order that引导目的状语从句,that后面加从句。例如:
He studied hard in order that he could pass the exam. 他努力学习以便能考试及格。
在这里注意与in order to的区别,in order to+动词原形 ( in order to后面加的那个不叫目的状语从句,叫目的状语) 例如:
He got up early in order to take the first bus.
= He got up early in order that he could take the first bus.
他起床很早是为了赶上第一班 公共汽车
目的状语从句的一个特点:由于目的都是未来的行为,所以从句中一般用表示未来可能性时态,比如上面句中的could。当然还可以用will,would,can,等 。

二、so that既可引导目的状语从句,也可以引导结果状语从句。
Speak clearly so that they may understand you. 讲清楚些,以便他们能理解你。
1)其引导结果状语从句时,so that翻译为“以至于...”,经常可以和so/such...that...转换,且从句只能放在主句之后。例如:
He got up late so that he was late for school. = He got up so late that he was late for school.
他起晚了,所以他上学迟到了。
2)其引导目的状语从句时,从句只能放在主句之后,此时可以和in order that换用。例如:
He got up early so that he could take the first bus. = He got up early in order that he could take the first bus.
为了赶上第一班公交车,他很早起床了。
3)He came in quietly in order that he shouldn’t wake his wife. / He came in quietly in order not to wake his wife. 他轻轻进来,以免把他妻子吵醒。

三、对于目的状语从句的考查,多以单选和完形填空的形式,从连词的意义角度让大家选择连词。例如:
Ann listened carefully _____ she could discover what she needed.
A. such that B. in order that C. because D. even though
解析:题干的意思是“为了能够发现自己需要的东西,安认真听讲”。很明显从句表示的是目的。such that本身是错误短语,because 表示原因,even though是“尽管”的意思,不符合题意。答案:B

四、需要注意的易错点:如何区别目的状语从句中的so that与结果状语从句中的so that的用法,这是我们需要注意的。目的状语从句的so that是连着的,结果状语从句是分开的,即so…that. so that是目的状语从句,是为了什么什么,有目的的含义。而so…that是结果状语从句,是“如此怎么怎么样结果是什么”。例如:
I get up so early I can not be late
A. that B . so that that order
解析:题干的意思是“我起床如此早以便于我可以不迟到”。从句表示目的,首先排除C,因为such that本身是错误短语,在排除in order,因为它后面不能跟句子;因为句子中有so,所以大家可能选A,如果选它,那句子的意思是“我起床如此早结果我可以不迟到”,显然说不通,所以排除。答案: B