因果推理和果因推理以及相关因果推理的联系很深，大家如果对这几类推理模式不够熟悉可以查看小编前面分享的一系列GMAT逻辑推理模式的文章，并利用prep08的CQ解析来训练这种解题方法。
一、GMAT逻辑因果推理简介
1、GMAT逻辑因果推理的定义。
绝大多数的逻辑题，文章中仅仅叙述两件事情，两件事情通常情况下是先后发生的关系，先发生的是原因(前提)，后发生的是结果(结论)。要学会运用因果关系对应不同题型解题，首先理解因果问题的结构：前提(因为…)，结论(所以…)。因果关系的结构不同，对应的题型解题方法有所差别。
2、GMAT逻辑因果推理的特征。
1)题型特点：这种模式最为简单，也最为容易。原文的前提为因，结论为果。(与果因相反)。
2)抽象形式：Premise: 某个事情(原因)。Conclusion：造成某个结果，或者说带来某个现象。
(详情请看 GMAT逻辑因果推理解题法 )
二、GMAT逻辑因果推理的解题方法
1、GMAT逻辑因果推理的评估方向。
CQ1：因果概括问题(原文的因和果没有联系或一因有多果)。
CQ2：干扰因素(原文的前提加上选项就不一定可以得出结果了。)
加强的话，就加强因果联系，或者弥补因果之间的gap，排除其他因素的干扰;削弱的话就说因果不相关，或者有干扰因素。
2、解题方法：这种模式需抓住前提。将选项扔到前提和结论之间即可。
(详情请看 GMAT逻辑七大推理模式详解 )
三、GMAT逻辑因果推理举例分析
例一：
Installing scrubbers in smokestacks and switching to cleaner-burning fuel are the two methods available to Northern Power for reducing harmful emissions from its plants. Scrubbers will reduce harmful emissions more than cleaner-burning fuels will. Therefore, by installing scrubbers, Northern Power will be doing the most that can be done to reduce harmful emissions from its plants.
Which of the following is an assumption on which the argument depends?
(A) Switching to cleaner-burning fuel will not be more expensive than installing scrubbers.
(B) Northern Power can choose from among various kinds of scrubbers, some of which are more effective than others.
(C) Northern Power is not necessarily committed to reducing harmful emissions from its plants.
(D) Harmful emissions from Northern Power’s plants cannot be reduced more by using both methods together than by the installation of scrubbers alone.
(E) Aside from harmful emissions from the smokestacks of its plants, the activities of Northern Power do not cause significant air pollution.
因果推理分析：
结论在therefore之后，因果推理。选项丢进题干看是否削弱“NP没有do the most to 减少排放。”
A 贵不贵与有没有尽全力无关。
B 题中比较的是scrubber和清洁燃烧燃料，不是两种scrubber的对比。
C 没必要减少的话则do the most 无从谈起，不能削弱。
D 正确。既然两个技术都用也不能减少得再多，所以就已经do the most，削弱。
E 题中说的是reduce harmful emission,并没有说是air pollution,因此无关，而且无辜添加新元素，不能削弱。
例二：
If the county continues to collect residential trash at current levels, landfills will soon be overflowing and parkland will need to be used in order to create more space. Charging each household a fee for each pound of trash it puts out for collection will induce residents to reduce the amount of trash they create; this charge will therefore protect the remaining county parkland.
Which of the following is an assumption made in drawing the conclusion above?
(A) Residents will reduce the amount of trash they put out for collection by reducing the number of products they buy.
(B) The collection fee will not significantly affect the purchasing power of most residents, even if their households do not reduce the amount of trash they put out.
(C) The collection fee will not induce residents to dump their trash in the parklands illegally.
(D) The beauty of county parkland is an important issue for most of the county’s residents.
(E) Landfills outside the county’s borders could be used as dumping sites for the county’s trash.
因果推理分析：
结论this charge will therefore protect the remaining county parkland.
方案已被评估过，所以应为因果，选项要看哪个可以削弱“这个改变不能保护剩下的县公园”。
A 谈到了因收费，和果少扔垃圾，先留着。
B 不减少丢的垃圾，则support“不能保护剩下的公园”。
C 正确，居民不非法乱扔进公园，则可以保护公园，削弱CQ1因果不相关。
D important issue不能代表人们不会乱扔垃圾。
E 题中说的是Charging each household a fee for each pound of trash it puts out，并没有说扔到哪才收费，因此不能削弱。
比较AC，A项有可能减少了买，也减少了垃圾数量，但是还有人可能会乱扔到公园里，因此C更合理。
(详情请看 GMAT逻辑练习题)
GMAT逻辑因果推理的出题方式和解题思路百利天下小编通过几个简单的例题帮助大家简单分析了一下，这种逻辑推理模式思路较为简单，大家只要记住两种CQ的方向一定能够快速找到答案。
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