你是想问为什么要用does 而不省略吗?
因为as……as 结构对称,前面比较的是 newspaper prints多少,后面就是应该是my hometown newspaper prints,这里does 代prints
The campus newspaper doesn't print as much .as my hometown newspaper prints.
这个应该不算语法点吧,如果有可能也要到研究生级别了,我英语专业的学过语法了,也没有关于这里的倒装的语法,最可能的是my hometown newspaper太长了,句子不平衡,所以把does 提上来,顺口美观吧.