Arguing from the view that humans are different from animals in every relevant respect, extremists of this kind think that animals lie outside the area of moral choice.

参考答案：

要点：句子框架Arguing from the view that humans are…, extremists of this…。本句应注意的地方：有套和从句。逗号前面是一个现在分词短语，作状语，里面又有一个that从句作the view的同位语，逗号后面的that从句是一个宾语从句。

译文：这类人持极端看法，认为人与动物在各相关方面都不相同，对待动物无须考虑道德问题。