【导语】目的状语从句是指从句部分用以补充说明主句中谓语动词发生的目的的状语从句，是一种广泛使用的从句类型。虽说难度不大，大多数学习者都能轻松掌握，但这也绝不是能够忽略这部分学习的借口，学习就是要面面俱到，所以这次就为大家带来目的状语从句几种特殊用法讲解。

1、由so...the...和 such...that...引导的目的状语从句，应该注意可能出现的以下结构。

so nice a boy that…

such a nice boy that…

so beautiful/diligent/carefully … that…

such (fine weather/great improvement) that…

2、so much so that的用法，该结构用于形容词或副词之后，表示"到如此程度以致于"。

eg. He was very weak, so much so that he could not walk.

I long to visit Beijing, so much so that I dream about it every night.

3、in order(that)"以便" to the end that "为……起见，以便。

eg. He works hard in order that his family may be happy.

4、含有情态动词的目的状语从句。

1）I am punishing the child lest he should make the same mistake.

2）She took her umbrella lest it(should)rain.

5、in case既可引导目的状语从句，也可引导条件状语从句，主要视句意而定, in case引导目的状语从句，从句有时可用“should+动词原形”这样的形式：

1)Tell me in case you get into difficulty.

2)Take your coat in case it rains (should rain).

[目的状语从句和结果状语从句]英语语法：目的状语从句的几种特殊用法

http://m.scabjd.com/chuzhong/123306/