Historian:  In the Drindian Empire, censuses were conducted annually to determine the population of each village.  Village census records for the last half of the 1600’s are remarkably complete.  This very completeness makes one point stand out; in five different years, villages overwhelmingly reported significant population declines.  Tellingly, each of those five years immediately followed an increase in a certain Drindian tax.  This tax, which was assessed on villages, was computed by the central government using the annual census figures.  Obviously, whenever the tax went up, villages had an especially powerful economic incentive to minimize the number of people they recorded; and concealing the size of a village’s population from government census takers would have been easy.  Therefore, it is reasonable to think that the reported declines did not happen.

In the historian’s argument, the two portions in boldface play which of the following roles?

A    The first supplies a context for the historian’s argument; the second acknowledges a consideration that has been used to argue against the position the historian seeks to establish.

B  The first presents evidence to support the position that the historian seeks to establish; the second acknowledges a consideration that has been used to argue against that position.

C  The first provides a context for certain evidence that supports the position that the historian seeks to establish; the second is that position.

D  The first is a position for which the historian argues; the second is an assumption that serves as the basis of that argument.

E  The first is an assumption that the historian explicitly makes in arguing for a certain position; the second acknowledges a consideration that calls that assumption into question.

我是哪里出了问题，望牛牛们指导，别见笑！

我选C，我的做题方法是

从第一个黑体字到第二个黑体字当中没有任何的转折，说明第一句和第二句黑体是相同方向的。
第二个黑体句就是结束句，说明：第一个黑体句和第二个黑体句和中心是同方向的。因此把选

项中，关于黑体句反对中心的全部过滤掉。

就留下C D。

C.The first provides a context for certain evidence that supports the position

that the historian seeks to establish; the second is that position.

D. The first is a position for which the historian argues; the second is an

assumption that serves as the basis of that argument

C D的区别是：第二句黑体C是postion，D是assumption。所以看原文，第二局黑体在

therefore,后面作为总结局的。所以不可能是assumption,只会是postion。因此就是C对了

别问我为什么，我只会做题