such与so的区别与用法
such与so的意思都是“如此，这样”。但两者用法根本不同，与what和how引导的感叹句相类似。
1、such后面主要是修饰名词。即：such＋a/an＋adj.＋n.或a/an＋such＋adj.＋n.。如果名词是不可数名词或复数名词，则不可以用不定冠词a或an。如：
①He has such a beautiful bike. We all go to see it.
②It's a such fine day. We al want to go to fly a kite.
2、so后面只能跟形容词或副词。即：和so＋adj.或adv.不过，so后面也可以跟名词，但该名词必须是单数可数名词。用法为：so+形容词+a或an+单数可数名词。如：
①The tiger is so big. And the cat is so small.
②She is so lovely a girl.
3、它们后面还可以与that从句连用。即：such…that和so…that意思是“如此……以至……”。如：
①She is such a clever girl that she can make much progress in math exam.
②His brother is so young that he can't go to school.
注：当名词前的形容词为表示数目的词时，such必须换成so。如：
①There are so many people that we can't go past.
②I ate so much food that I didn't want to go any farther.
注意这一句话：Smith has made so much progress that we are all surprised ..
进步是不可数名词，因此用much（修饰不可数名词）. many修饰可数名词。
so是副词,只能修饰形容词或副词。只有so能与much连用。一般来说，so many 和so much可以成为固定的词组
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