OG12- 84
Many people suffer an allergic reaction to certain sulfites, including those that
are commonly added to wine as preservatives. However, since there are several
wine makers who add sulfites to none of the wines they produce, people who
would like to drink wine but are allergic to sulfites can drink wines produced by
these wine makers without risking an allergic reaction to sulfites.
Which of the following is an assumption on which the argument depends?
A. These wine makers have been able to duplicate the preservative effect
produced by adding sulfites by means that do not involve adding any
potentially allergenic substances to their wine.
B. Not all forms of sulfite are equally likely to produce the allergic reactions.
C. Wine is the only beverage to which sulfites are commonly added.
D. Apart from sulfites, there are no substances commonly present in wine that
give rise to an allergic reaction.
E. Sulfites are not naturally present in the wines produced by these wine
makers in amounts large enough to produce an allergic reaction in someone
who drinks these wines.
答案是E
我很疑惑为什么不是D呢，这道题E是怎么解释的呢作者: gonghao 时间: 2012-9-17 06:38
D. Apart from sulfites, there are no substances commonly present in wine that
give rise to an allergic reaction.
SCOPE 错了
问的是这个“these wine makers without risking an allergic reaction to sulfites.”注意仔细看conclusion
结论中的是sulfites引起的过敏反应。而D中给出的是没有其他的（除了S物质之外的）过敏原。。。
所以D是无关选项。作者: mba2013 时间: 2012-9-18 21:26
CR题要多多锻炼提取能力。就这题举例，看完题干，第一时间在脑中提取题干。
P：S caused allergic，some wine maker don‘t add S as preservation ----------------》C：Drinker choose these wines won’t have allergic reaction to S
这题问的是assumption。找到GAP，P与C之间有什么断层吗？有的，S物质是不是仅仅作为preservation存在于酒中？即S物质是否存在于酒本身中？
所以E，对。
同样ASSUMPTION可以用negate方法来判断。
否定E选项：Sulfites are naturally present in the wines produced by these wine
makers in amounts large enough to produce an allergic reaction in someone
who drinks these wines.
很明显的，NEGATE版本的E选项说：S物质本身大量存在于该种酒之中，含量足以引起过敏反应。
这时候因为negate的选项直接导致题干中的逻辑推理崩溃，所以E选项是对的
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