One strategy was to live at higher elevations where rainfall was higher, as did the Mogollon, the people at Mesa Verde, and the people of the early agricultural phase at Chaco Canyon known as the Pueblo I phase.

as did the Mogollon 在这句话做什么成分？这句话是定语从句吗？还是方式状语从句？这是as的什么用法？as在这里做什么成分？是从句中的主语吗？

【答】the Mogollon：居住在美国西南部的莫戈隆人

as did the Mogollon= as the Mogollon did

意思是：正如莫戈隆人所做的那样。

as did sb. 是倒装语序， as引导的倒装不是必须的，也可以不倒装。在这里，as 是从属连词，引导方式状语从句，意为“正像...一样”，还可译为 “...也是如此”。例如：

They go to concerts frequently, as do I. = They go to concerts frequently, as I do.

可以译为：他们经常去听音乐会，我也是。

也可译为：他们和我一样，经常去听音乐会。