以下是引用jones79在2005-4-18 11:39:00的发言：豆豆,想向你讨教一些xdf补充材料中的问题,是否能抽空帮我看看(查了老贴,没有这题) 19篇的第8题,问削弱,我觉得很难在b,d间取舍,知道选d的理由是说在1492年以前如果受到SP传染病的影响但是人口没有答规模的减少,那么VS也不会成为人口减少的理由,属于他因削弱, 不过看看b不也是他因削弱么,人口的变化是周期性的,与疾病的传播无关,他因削弱?? 8. Which of the following, if newly discovered, would most seriously weaken the author's argument concerning the importance of virgin-soil epidemics in the depopulation of Native Americans?
(A) Evidence setting the pre-Columbian population ofthe New World at only 80 million
(B) Spanish tribute records showing periodic population fluctuations
(C) Documents detailing sophisticated Native American medical procedures
(D) Fossils indicating Native American cortact with small pox prior to 1492
(E) Remains of French settlements dating back to thesixteenth century
不好意思, 刚送走一个朋友, 现在才有空坐下来给jones看题. 我找到了携隐MM上载的补充材料的19篇, 不知道我们用的是不是同一个版本?
我的理解是D并不是他因削弱, 而是直接反对论据.文章的15行说了virgin-soil epidemics were
important in American history is strongly indicated by
evidence .......如small-pox........ were unknown in the pre-Columbian
20) New World.
而答案d说 Fossils indicating Native American cortact with small pox prior to 1492
正好否定了原文的论据.从而否定了结论.
That virgin-soil epidemics were
important in American history is strongly indicated by
evidence that a number of dangerous maladies—small-
pox, measles, malaria, yellow fever, and undoubtedly
several more—were unknown in the pre-Columbian
20) New World.
我认为B是无关选项. Spanish tribute records showing periodic population fluctuations
周期性的人口浮动好像和the importance of virgin-soil epidemics 没有关系.
我想你这道题可能错在没有抓住提干中的the importance 这个关键词.所以没能准确定位.
而且在RC的逻辑weaken题中, 极少用到它因消弱, 一般都是反对论据, 或有果无因等.
不知道我解释清楚了没有, 请指教! | 
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发表于 2005-4-18 11:39:00
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惭愧, 我当时都偷懒没做.