英语句子结构问题,

题目

英语句子结构问题,
Shelley concludes that essay by calling poets "the unacknowledged legislators of the world,"because they bring imagination to the realm of "reasoners and mechanists.
Shelley concludes that essay by calling poets "the unacknowledged legislators of the world,这句话,从句只有essay?谓语呢?不太理解结构,

答案

这里没有从句啊!
that在这里是指示代词,表示那篇（essay）.不是从句.
后面的by calling.是方式状语.