同学你好，该知识点来自沪江网校《英语零基础直达大学六级【3年随心畅学班】》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~
However little known the feelings or views of such a man may be on his first entering a neighbourhood 这部分是让步状语从句。
其中主语是 the feelings or views of such a man
状语是on his first entering a neighbourhood  

this truth is so well fixed in the minds of surrounding families 主句
其中this truth是主语，is fixed是谓语

that he is considered as the rightful property of someone or other of their daughters 是同位语从句
其中that不做成分，he是主语，is considered谓语，as the rightful property of someone or other of their daughters 主语补足语

在这样的一个单身男人初临新居之时，他的邻居虽然不了解他的性情或观念，这样的真理已在这些人心中扎根——他一定会是他们其中一个女儿的“合法财产”。

祝同学学习进步~