关于as……as……的句型后面应该跟什么样的短语

题目

关于as……as……的句型后面应该跟什么样的短语
有一个句子I have walked as much (distance) as 10km
我们英语老师说,因为distance不可数,所以要用much.可是as as句型里面有这样一种啊?为什么我记得都是he is as tall as his brother这种的啊?as as中间不都是一个形容词吗,为什么这里面会有名词?
这种句型有什么用法么?再给举几个例子吧~

答案

1. as...as中间的成分一般分为下面三种:
1）as + 副词原级 + as
如：I'll study English as hard as possible.
2) as + 形容词原级 + as
如：She is as tall as you.
3) as + 形容词原级 + 名词 + as
如：I make as much money as you.
2. 楼主给的这个例子属于上述结构中的第三种,再如：
I'd like to buy as many books as you.