as good a form of self-expression as painting or drawing 第一个as后面是名词?

题目

as good a form of self-expression as painting or drawing 第一个as后面是名词?
He felt that photography could be just as good a form of self-expression as painting or drawing.
For Stieglitz,his camera was his brush.

答案

as/so/too/ + adj+a/an +n
注意上一个结构.
我们知道 so/too/as 这些都是副词,是不能修饰名词（词组）的,但如果是一个a(an)+形容词+名词单数 这样的结构,我们可以把形容词和不定冠词的位置对调一下而用之
如：
shuch a clever boy=so clever a boy
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