同学你好，该知识点来自沪江网校《新概念英语1、2、3、4册连读【特惠班】》的课程，想要更系统的学习，欢迎进入课程学习。不仅可以和更多的同学一起学习，而且还有老师、助教随时的学习指导和知识点解答哦。

同学你好~
Yet their present development is wholly different, not so much because of different people even, but because of the different thoughts that exist in the minds of their inhabitants.
但是，这两个地方目前的发展程度完全不一样。这倒不是因为人民不同，而是由于居民头脑中的思想不同。

even在这里起到强调作用，“甚至”，甚至不是因为人民不同。

Yet their present development is wholly different 这部分是主句
not so much because of different people even 这部分是原因状语，其中
not so much because of 不是因为……

but because of the different thoughts that exist in the minds of their inhabitants 这部分也是原因状语
其中that exist in the minds of their inhabitants是定语从句，修饰thoughts

祝同学学习进步~