初中初三U10 3a课文中有一句话：
We often just walk around the town center, seeing as many of our friends as we can.
我不太了解as many of our friends as we can是个什么结构，大家现在只学过as+adj./adv.原级+as+其他的结构，但 many of our friends 仿佛是个名词性短语啊，为何放在这里合理？
也请老师帮我拓展一下原级比较的其他结构，像as+adj. +a/an+n. +as之类，谢谢！
你可以把as...as we can 看作一种固定的句型，表示某种能力或可能性。as much as we can / as possible 这个句型你应该了解吧？其实它就是从这里变化而来。可以说to see as many friends as we can. 因为friends前有限定词our, 所以只可以用many of our friends, 英语不说many our friends. 请看《剑桥词典》的讲解：
至于你问到 as +adj. +a/an+ noun+ as 的使用方法也是非常容易见到的，请比较几个外刊例句：：
They could buy as big a house as their friends'.
I don't want as big a house as I have now.
You want to build as big a house as your money can buy.
你领会一下，然后模仿用即可。