题目选项分析

In unveiling vast swaths of areas of which they previously had faintly any notion of their existence, much like modern day astronomers, ancient cartographers expanding our awareness of the world we inhabit and providing a basis so that we might reach even further into the unknown.

Much as modern day astronomers do, ancient cartographers unveiled vast swaths of areas of which they faintly had any notion, thereby expanding our awareness of the world we inhabit and providing a basis so that we might reach even further into the unknown.