OG那篇“印第安水权”的一个奇葩选项求助攻，看不懂啊~

fidotao

62. The “pragmatic approach” mentioned in lines 37–38 of the passage is best defined as one that

(A) grants recognition to reservations that were never formally established but that have traditionally been treated as such
(B) determines the water rights of all citizens in a particular region by examining the actual history of water usage in that region
(C) gives federal courts the right to reserve water along with land even when it is clear that the government originally intended to reserve only the land
(D) bases the decision to recognize the legal rights of a group on the practical effect such a recognition is likely to have on other citizens
(E) dictates that courts ignore precedents set by such cases as Winters v. United States in deciding what water rights belong to reserved land

D选项求大神帮忙解读：bases the decision to recognize the legal rights of a group on the practical effect such a recognition is likely to have on other citizens.

已经扒了CD里关于水权的帖子，也尝试谷歌了，真的找不到~求助攻，谢谢啦~

我滴天呐

这篇文章我做的时候也是稀里糊涂，但是这个题做对了，参考答案之后精读了全文，终于明白Gmat想考我们什么。以下是我的理解，仅供参考。
这道题需要对文章的整体理解，第一段讲印第安用水权的问题及winters这个法案的产生，并且表明了三种情况下该地的用水权可以保留。到第二段就是一个转折，一些印第安部落通过传统方式（而非现有法律）来决定用水权。下面的supporting ideas就开始讲Pueblo部落的问题了。他们在美国取得新墨西哥州的统治权之前就已经存在那里，而在隶属美国之后，政府一直也没有把其划归为public lands，自然也没有撤销过public lands，所以不符合第一段中的那三点要求。然而就现实来说，由于他们一直被默认为reservations，所以pragmatic approach 就是承认他们reservations的位置，给予他们响应的water rights。因为it is a question of practice,not of legal definition.所以正确答案是A。
再看B，这个pragmatic approach是特指，往前看可以知道，它是针对于reservation的，而非water rights，更没有提到通过用水历史来决定用水权，这是后面的内容，所以这个答案过于宽泛，不合适。
C选项与第二段的内容无关。D没有提到。E与事实相反。