问题一：So one important thing was that the rooms were arranged around a chimney in the center of the house, which could provide heat for the whole house through flues, uh, small air passageways into each room, as opposed to having a fireplace in every room, which would require more cleaning and make the air inside the house dirtier.

请问：small air passageways into each room算是flues的同位语还是非限制性定语？as opposed to引导的是什么状语，其中as是什么词性，这个短语能拆开分析吗？

【答】flues 和small air passageways，是同位语，后者解释前者，说明其内容。两个名词被逗号隔开，怎么能成为定语呢？记住：同位语的主要作用，是解释说明前文的。我用红色描述一下，你就明白了：through flues（= small air passageways） into each room

as opposed to：不再作结构分析了。只需要记住、会用即可。意为：相对于；与…相反；而不是。

问题二 ：The mines were fairly remote, so there was no way to bring coal or other fuel to keep the fires going.

请问：to bring coal or other fuel我的理解是way的定语，但是to keep the fires going是目的状语还是coal or other fuel的定语呢？如果是目的状语，那么逻辑主语是什么，一般好像不定式的逻辑主语是句子主语或者是for sb/sth加在不定式前面，但是这里是there be句型，我无法理解？此外目的状语是不是一定要找到对应的逻辑主语才成立呢？？

【答】你的理解正确：to bring coal or other fuel是way的定语。此外，to keep the fires going 是coal or other fuel的定语。