定语从句疑难There isn’t so much noise in the country A in big citi

这不是定语从句,作定语的不是句子.where=in which.in big cities已经描述地点了,所以不有where或in which替代.本句考察no so much as的用法
例如:
This is the village where I was born.=
This is the village in which I was born.=
This is the village .I was born in the village.
where代指in the village .
对where的用法理解了吗?

首先啊 where是连接词，连接的是句子，右边不是句子，而是一个副词作状语的成分，所以不能用连接词where。
至于as，not…so much as 结构要求。
希望有帮助。

这里是一个比较句型，no so much as
比较的是the country和big cities里噪音的多少，即乡村和城市的比较，
如果你选where,怎么解释呢？