培养逻辑直觉
GMAT 考试不仅需要技巧，更需要思考和直觉。CR要高分的秘诀是：平常的练习必须习惯“看懂题目后，能够把主题主角换掉，换成生活中相近的故事，但背后逻辑一致。”
举个例子：
Lyme disease is caused by a bacterium transmitted to humans by deer ticks. Generally, deer ticks pick up the bacterium while in the larval stage by feeding on infected white-footed mice. However, certain other species on which the larvae feed do not harbor the bacterium. If the population of these other species were increased, more of the larvae would be feeding on uninfected hosts, so the number of ticks acquiring the bacterium would likely decline.
抓到主题：L疾病的传染
主角：L病、寄生虫、动物
生活中哪些概念有这种关系？
在台湾，最相近的就是“登革热”、“病媒蚊”、“水沟”
在读文章的同时抓到这样主题主角关系后，文章就可以在心中迅速转译为（请与上方英文对照）：
登革热是通过带病媒蚊的病毒传染给人类。而病媒蚊是从小时候待着的臭水沟中得到病毒，但有些蚊子待的水沟很干净，没有病毒。所以如果干净的水沟变多的话，就会有更多蚊子待在干净的水沟，病媒蚊就会越来越少。
这时候，就可以用这种相近的故事去思考逻辑断桥：
谁说干净的水沟变多，干净的蚊子就会变多？
水沟（宿主）的数量跟蚊子（寄生虫）的数量有关系吗？
B. Whether the size of the deer tick population is currently limited by the availability of animals for the tick’s larval stage to feed on
不確定自己現在幾分？
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正确答案便是点出了“宿主的数量”跟“寄生虫数量”之间的断桥。
同样的，CR练到走火入魔的时候，你就会经脉逆流，倒行逆施，尝试从生活中看到的大小事或新闻，来联想GMAT出过的题目。
比如这段时事：
北投当地商家不断撒花吸引宝可梦玩家前往抓宝，大量的玩家导致北投车道阻塞，反倒引起抱怨，有网友质疑，这是双重标准，一面撒花吸引玩家，一边抱怨大量玩家造成的阻塞。
削弱方向是：
撒樱花的是商家，抱怨的是居民，
并非同一批人，所以没有双重标准。
如果你能够成功联想到这一题，就代表你具备了CR高分的直觉判断。
In an experiment, each volunteer was allowed to choose between an easy task and a hard task and was told that another volunteer would do the other task. Each volunteer could also choose to have a computer assign the two tasks randomly. Most volunteers chose the easy task for themselves and under questioning later said they had acted fairly. But when the scenario was described to another group of volunteers, almost all said choosing the easy task would be unfair. This shows that most people apply weaker moral standards to themselves than to others.
Which of the following is an assumption required by this argument?
(A) At least some volunteers who said they had acted fairly in choosing the easy task would have said that it was unfair for someone else to do so.
