最近一年内，GMAT考试的逻辑变化呈现非常明显的趋势。削弱题和解释题的所占的比例明显增加，并且削弱题中因果倒置的答案频繁出现。并且在OG16中也呈现出这种趋势，32个新增题目中，10个是削弱题，占到1/3。在最近的机经中，多次出现因果倒置的题目，原文叙述“调查显示有工作的人身体状况相对较好，从而推出工作让人身体变好”，削弱题目的正确答案“正是因为这些人身体健康，才更容易找到工作的”。再比如“调查显示开灯睡觉的孩子视力普遍较差，于是得出结论开灯睡觉让人视力变差”，削弱题目的正确答案“正是因为视力较差才开灯睡觉的”。因果倒置的题目出题模式是文章内容A→B，选项的削弱方式是B→A，在做题的时候比较容易识别。出了因果倒置之外，他因削弱的地位依然很重，也会出现这两种方法的混用。比如OG16第124题
It is widely assumed that people need to engage in intellectual activities such as solving crossword puzzles or mathematics problems in order to maintain mental sharpness as they age. In fact, however, simply talking to other people—that is, participating in social interaction, which engages many mental and perceptual skills—suffices. Evidence to this effect comes from a study showing that the more social contact people report, the better their mental skills.
Which of the following, if true, most seriously weakens the force of the evidence cited?
(A) As people grow older, they are often advised to keep exercising their physical and mental capacities in order to maintain or improve them.
(B) Many medical conditions and treatments that adversely affect a person’s mental sharpness also tend to increase that person’s social isolation.
(C) Many people are proficient both in social interactions and in solving mathematical problems.
(D) The study did not itself collect data but analyzed data bearing on the issue from prior studies.
(E) The tasks evaluation mental sharpness for which data ware compiled by the study were more akin to mathematics problems than to conversation.
文章逻辑“因为参加了简单社交的老年人，其思维更加清晰，所以简单地社交活动可以提高老年人的思维清晰度。”题目要求削弱结论。正确答案B “很多药物治疗方案对人的思维清晰性又不好的影响，并且会增加一个人的孤立性。”也就说明治疗方案导致了一些老年人思维不清晰，从而不去参加社交，而不是社交本身造成了老年人思维清晰度的差异。这道题目的削弱方式既用了他因也使用了因果倒置。
为了GMAT逻辑取得好的分数，我们建议考生在做GMAT真题的时候，不要仅仅关注正确率，更多的是关注错题背后的原因，了解正确答案的逻辑规律和错误答案的设计惯性。逻辑题目做题的时候要遵守三个铁律“句子读主句;文章找主干;选项考对比”。平时练习的时候有规律的练习才能够保证在考试的时候不自乱阵脚，保证头脑清晰。
最新热文推荐：
更多精彩内容尽在新东方网GMAT频道，同时也可关注我们的微信平台（微信号：newgmat）
(微信号：newgmat)
(实习编辑：刘伯罡)
为实现自己的商学院之梦，无数学生默默地在GMAT考试中付出自己辛勤的汗水。所有GMAT高分故事背后都有值得我们学习的GMAT备考经验。相信这样的一个个GMAT高分故事能够在你备考GMAT考试的过程中送上一丝鼓励与指导。
