so…that…与such…that…引导的都是结果状语从句，表示“如此……以致……”。例如：

He was so unfortunate that he lost both his parents in his childhood.

=He was such an unfortunate man that he lost both his parent-s in his childhood.他非常不幸，童年时代就失去了双亲。

This meeting is so important that every one of us should att-end it.

=This is such an important meeting that every one of us shou-ld attend it.这次会议是如此之重要，以致于我们每一个人都得出席。

二、结构与搭配不同

(一)so…that…句型的结构与搭配为：so+形容词/副词+that…。例如：

When I was on the stage the next day,I felt so nervous that I shook like a leaf.(NMET 2000短文改错题)第二天上舞台的时候，我感到格外紧张，以致于身体像树叶一样抖动。(so后面接形容词)

He ran so fast that I couldn’t catch up with him.他跑得太快，我赶不上他。(so后面接副词)

(二)such…that…句型的结构与搭配为such…+名词+that…。该句型有三种情况：

1.such a/an+形容词+单数可数名词+that…。例如：

She told us such an interesting story that we all forgot abo-ut the time.(MET 1988)她给我们讲了一个如此有趣的故事，结果我们都忘了时光的流逝。

2.such+形容词+复数可数名词+that…。例如：

They are such difficult problems that I don’t know how to se-ttle them.这些问题是如此复杂，以致于我不知道如何解决。

3.such+形容词+不可数名词+that…。例如：

It is such fine weather that I want to go for an outing.今天天气是这么好，因此我想去效游。

但是so+many/much/few/little(少)+名词+that…应被视为特殊句型。其中的many,much,few,little为限定词，限定词必须位于名词之前，而且修饰这些限定词的应是so，而不是such。例如：

There’re so many kinds of tape-recorders on sale that I can’t make up my mind which to buy.(MET1992)市场上出售的录音机种类很多，以致于我拿不出主意要买哪一种。

Such a little boy has so little difficulty in working out th-is difficult problem that I admire him very much.这样小的一个男孩解这道题所遇到的困难是如此之少，以致于我很羡慕他。