目的状语从句
常见引导目的状语从句的连词有：so that, in order that或that.目的状语从句中常含有情态动词，如：may/might, could/can等。

例：
I turned off the TV in order that my roommate could study in peace and quiet.
I spoke slowly and clearly so that/in order that the audience could understand me.
目的状语从句一般位于主句之后，但若要强调目的状语从句，可将so that或in order that引导的从句置于句首。

目的状语从句的化简
In order that, so that, that对应的不定式结构为in order to do, so as to do, to do.
例：
I arrived at the cinema early so as not to miss the beginning of the film.
In order to可放于句末、句首。

So as to 不能置于句首。

例：
In order to get a better view, we climbed high.
直接用动词不定式to do来表目的
例：
To acquire knowledge, one must study; but to acquire wisdom,
one must observe.
In order for sb to do sth
例:
I spoke slowly and clearly in order for the audience to understand me.
The teacher raised his voice in order for the students in the back to hear more clearly.
结果状语从句
常用的引导结果状语从句的连词有：s o……that, such……that, so that, such that.结果状语从句要放在主句之后，而不能提到句首。

一、连词s o……that的用法
这里so后面接形容词、副词、分词。

例：
The moon is so large that several million people could live there.
So that引导目的状语从句与结果状语从句的区别主要有两点：1）、若so that引导结果状语从句，往往会有逗号将主句与从句隔开。

2）、在结果状语从句中往往没有情态动词，而目的状语从句通常都含有情态动词。

二、连词s uch……that的用法
Such……that来引导结果状语从句，此时such后面要接名词。

三、在such that引导的结果状语从句中，such相当于“so+形容词”
具体用什么形容词要根据上下文来判断。

比较so与such的区别
一、so的用法
1、so+形容词/副词
The house is so expensive that I can not afford to buy it.
2、so+形容词+a/an+单数可数名词
This is so expensive a house that I can not afford to buy it. He is so patient a teacher that every one of us likes him.
3、so many/much/few/little+名词
So可以与表示数量的形容词连用，如：many, much, few, little 然后再接名词，如：so many flowers, so much patience, so much fun, so few cars, so little care等。

二、such的用法
1、such是一个限定词，其后要接名词。

Such可以接单数可数名词，如：such a house, such a day可以接复数可数名词，如：such boys, such cars可以接不可数名词，如：such weather, such information.
2、such+形容词+名词
这里的名词可以是单数可数名词，such an expensive house, such a nice day.可以是复数可数名词such nice boys, such expensive cars.可以是不可数名数，such nice weather, such important information.
3、限定词+such+名词
我们可以说many such dogs, much such attention, few such cars.能够这样用的原因是：首先由such修饰名词，比如：such cars然后再由这些表示数量的形容词修饰such,其他可用在such前面的限定词有：n o, other, some, any, one(two three……)
例：
1、no such man (不说no such a man)
2、one such man(不说one such a man)
3、every such fool(不说every such a fool)
4、three such men
5、all such men
6、five hundred such planes。