GRE逻辑主要包含以下几类：假设、支持、反对、评价、归纳、解释，本文主要就GRE逻辑解释的两种类型：解释结论或现象，解释差异或缓解矛盾中的第一种进行分析，希望对考生备考逻辑有所帮助。
GRE逻辑解释结果或现象的概念。
本类考题是针对一段关于某些事实或者是现象的客观描述进行分析，从5个选项中选择一个可以直接说明结论能够成功或者是现象为什么发生的题型。
解题侧重点和技巧。
解题是，主要可以先抓准要解释的对象，然后进行定位，读题的关键在于段落的最后一句话。
例题1分析：
A program instituted in a particular state allows parents to prepay their children’s future college tuition at current rates. The program then pays the tuition annually for the child at any of the state’s public colleges in which the child enrolls. Parents should participate in the program as a means of decreasing the cost for their children’s college education.
Which of the following, if true, is the most appropriate reason for parents not to participate in the program?
A) The parents are unsure about which public college in the state the child will attend.
B) The amount of money accumulated by putting the prepayment funds in an interest-bearing account today will be greater than the total cost of tuition for any of the public colleges when the child enrolls.
C) The annual cost of tuition at state’s public colleges is expected in the cost of living.
D) Some of the state’s public colleges are contemplating large increases in tuition next year.
E) The prepayment plan would not cover the cost of board and lodging of the state’s public colleges.
解析：该短文建议父母亲们应该参加学费预付计划，把它作为一种减少他们的孩子们将来大学教育费用的手段，如果(B)是对的，将资金放到一个计息账户将比参加这个预付学费计划有更大的成本效益，因此(B)是一个不参加的理由，并且是正确答案;(A)和(E)同决定是否参加都不是明确相关。因为该计划应用于孩子选择上的任何公立大学，该计划已经考虑到了(A)中的偶然性;不管父母亲是否参与，(E)中提到的费用都没有包括在学费开支中;选项(C)和(D)通过指出学费要增加，为参加该计划提供了支持。
例题2分析：
Defense Department analysts worry that the ability of the United States to wage a prolonged war would be seriously endangered if the machine-tool manufacturing base shrinks further. Before the Defense Department publicly connected this security issue with the import quota issue, however, the machine-tool industry raised the national security issue in its petition for import quotas.Which of the following, if true, contributes most to an explanation of the machine-tool industry’s raising the issue above regarding national security?
(A) When the aircraft industries retooled, they provided a large amount of work for tool builders.
(B) The Defense Department is only marginally concerned with the effects of foreign competition on the machine-tool industry.
(C) The machine-tool industry encountered difficulty in obtaining governmental protection against imports on grounds other than defense.
(D) A few weapons important for defense consist of parts that do not require extensive machining.
(E) Several federal government programs have been designed which will enable domestic machine-tool manufacturing firms to compete successfully with foreign toolmakers.
注:wage a war开始(进行)一场战争
解析：由于机械用具制造业的规模可假定为对除国家安全之外的领域有影响，在请愿中该行业提出关于国家安全问题让人吃惊。因此(C)是正确答案，解释说该行业提出这个问题是因为在取得政府保护的努力中其他办法都没有效果;另一方面，选项(A)和(B)仅解释了为什么该行业不应提出安全问题。选项(A)指出该行业应提出就业问题;选项(B)指出这个关心国家安全的政府部门对该行业的进口问题没有给予足够的重视而采取行动;(D)和(E)都与该行业争取进口配额的策略选择无关。
以上就是关于GRE逻辑之解释结论或现象分析的经验分享，希望对考生备考逻辑有所帮助。
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