84. Many people suffer an allergic reaction to certain sulfi tes, including those that are commonly added to wine as preservatives. However, since there are several winemakers who add sulfi tes to none of the wines they produce, people who would like to drink wine but are allergic to sulfi tes can drink wines produced by these winemakers without risking an allergic reaction to sulfi tes. Which of the following is an assumption on which the argument depends? (A) These winemakers have been able to duplicate the preservative effect produced by adding sulfi tes by means that do not involve adding any potentially allergenic substances to their wine. (B) Not all forms of sulfi te are equally likely to produce the allergic reaction. (C) Wine is the only beverage to which sulfi tes are commonly added. (D) Apart from sulfi tes, 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 winemakers in amounts large enough to produce an allergic reaction in someone who drinks these wines. 请教这一题应该怎么分析 -- by 会员 cannahere (2010/1/9 4:56:36)
介绍一下我的解题步骤，希望对LZ有帮助：
1读问题：问以下哪个是原文的假设。
2读题：很多人对一种ST的物质过敏，包括用来保存红酒的st物质。然而，既然红酒厂商在生产的红酒中已经不添加st物质了，那么喜欢喝红酒但对st过敏的人就可以放心大胆的喝这些红酒厂商生产的红酒，而不会产生过敏。
3. 原文大体意思回忆：红酒加不加st物质，喝红酒的人会不会过敏。
4.读选项：
a.红酒厂商能够保存酒，但不使用让人过敏的物质 （感觉与原文有点沾边，不好说）
b.所有不同形式st物质都会让人过敏（与原文无关，删除）
c.红酒是唯一的饮料，添加st物质（与原文无关，删除）
d.除了st外，没有别的物质让人过敏（与原文无关，删除）
e.st这种物质不是红酒自然产生，其产生的量足够大而导致人的过敏。（感觉与原文沾边）
5 a，e对比：a是说红酒厂商能不能通过手段保存酒，e说st物质不是自然产生的，而让人过敏的物质；e比a更好；选E | 
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发表于 2010-1-9 04:56:36
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