（1）“So that“以便，使能够”，与in order that 同义，后接从句，引导一个表示目的的状语从句。

Speak clearly so that （in order that）everybody can understand you.

请说清楚一点，这样每个人都可以听懂你的话。

We left early so that (in order that) we could catch the first train.

（2）so that 也可以引导表示结果的状语从句，主句和从句是原因与结果的关系，做“因此”讲。

It was too cold ,so that we couldn’t work.天气太冷了，因此我们无法工作。

（3）so that与so---that的区别

so that 可以引导目的的状语从句(有情态动词)或结果状语从句（没有情态动词）（从句子的意思上或根据主句和从句的逻辑关系上去判断）；

so---that引导结果状语从句，作“如此--- 以致--- ”讲，常用在“so+形容词/副词+that clause”结构中。

   I am so busy that I have no time to see my mother.我工作太忙了，没有时间去看母亲。

（4）in order to （in order not to）和so as to (in order not to)后接动词原形，用作目的状语，in order to ，to do 可置于句首，而so as to 则不行。

   He worked hard so as not to (in order not to) fail the math exam.

   In order not to fail the math exam, he worked hard .

   To sirprise her, I didn't tell her the secret until the present was ready.

考题例析

1.Tom kept quiet about the accident_____lose his job.

A:so not as to    B:so as not to  C:so as to not  D:not so as to

2.Please speak louder,______everybody can hear you.

A:so  B:so that  C:what  D:in order to

3.Speak to him slowly_____he may understand you better.

A:since  B:so that  C:for  D:because

4.______finish the report ,John stayed up late into the night.

A:So that  B:In order that  C:So as to  D:In order to

5.It was____cold that they had put on more clothes.

A:such a  B:so a C:such  D:so

6.It’s ______that I’d like to go on a picnic.

A:a such lovely day  B:such lovely a day  C: so lovely day  D:so lovely a day

7.John shut everybody out of the kitchen_____he could prepare his grand surprise for the party.

A:which  B:when  C:so that  D:as if

8.As I know you ,there is ______car in his neighbourhood.

A:so such  B:no a C: not such  D:no such a

9.______cases have been found in that district.

A:Other such few  B:Such other few  C:Few such other  D:Few other such

10.So tired____after a long journey that he_____stay up.

A:was he;couldn’t  B:is he;couldn’t  C:he was;couldn’t  D:was he;couldn’t have