GMAT阅读是GMAT考试中的一大难点，而主旨题则是GMAT阅读中的必考题型，考生要想获得理想分数就要掌握GMAT阅读的正确解法及备考步骤。下面小编为大家带来的是GMAT阅读主旨题举例详解，希望对大家的阅读备考有帮助。
阅读GMAT文章，应该先读懂文章再做题，并且要先抓文章结构再去理清对应结构下面的细节性内容。所谓抓文章结构就是理清一篇文章的框架、脉络，GMAT阅读文章中常见的文章结构有以下几点：
1.先提出旧观点→新观点;
2.先提出一个理论→反驳该理论(没有提出新观点，或者修改建议)
3.理论(观点)→新证据→修正该理论(观点)
4.先描述了一个现象→解释这个现象
5.先提出一个问题→解决方案
6.一种做法→提出建议，可以替换的更好的做法
7.一个争论→描述争论两方(→作者对于这个争论什么看法，或者对于这两方的观点什么看法)
8.一个评论对象(作品、人，etc.)→一些人怎么看，另外一些人怎么
9.一个话题→呈现了一些跟这话题有关的信息
理清文章结构你就明白了这篇文章主要讲了什么，结构是文章框架，主要讲了什么，也就是一篇文章的主旨。理论上来看我们就可以把主旨题选项拿来和文章结构比对，就可以直接排除错误选项，选出主旨题答案了!下面小编将结合具体的文章为大家详细介绍一下：更多相关内容请点击》GMAT阅读素材之联合国秘书长竞聘。
Scientists long believed that two nerve clusters in the human hypothalamus, called suprachiasmatic nuclei (SCNs), were what controlled our circadian rhythms. Those rhythms are the biological cycles that recur approximately every 24 hours in synchronization with the cycle of sunlight and darkness caused by Earth’s rotation. Studies have demonstrated that in some animals, the SCNs control daily fluctuations in blood pressure, body temperature, activity level, and alertness, as well as the nighttime release of the sleeppromoting agent melatonin. Furthermore, cells in the human retina dedicated
to transmitting information about light levels to the SCNs have recently been discovered. Four critical genes governing circadian cycles have been found to be active in every tissue, however, not just the SCNs, of flies, mice, and humans. In addition, when laboratory rats that usually ate at will were fed only once a day, peak activity of a clock gene in their livers shifted by 12 hours, whereas the same clock gene in the SCNs remained synchronized with light cycles. While scientists do not dispute the role of the SCNs in controlling core functions such as the regulation of body temperature and blood pressure, scientists now believe that circadian clocks in other organs and tissues may respond to external cues other than light—including temperature changes—that recur regularly every 24 hours.
The primary purpose of the passage is to
(A) challenge recent findings that appear to contradict earlier findings
(B) present two sides of an ongoing scientific debate
(C) report answers to several questions that have long puzzled researchers
(D) discuss evidence that has caused a long-standing belief to be revised
(E) attempt to explain a commonly misunderstood biological phenomenon
这道题对应的文章的结构是以上提到的第3点的“理论(观点)→新证据→修正该理论(观点)”的一个例子。是以前科学家都认为SCN控制了生物钟(观点)→发现控制生物钟的重要的4种genes被发现存在于除了SCN的其他organ和tissue中(新证据)→现在科学家不反对SCN的主导地位，但是也意识到了应该考虑考虑其他organ、tissue对于生物钟的影响。(修正观点)
然后考生需要结合选项做进一步的判断，并利用排除法缩小选择范围，最终得出正确答案：选项A challenge recent findings that appear to contradict earlier findings 那么新证据，新发现是作为修正观点的依据，而不是challenge的对象，排除。选项B 也不是一个debate，陈述双方观点的结构，排除。选项C 也不是提出问题，回答问题的结构排除。选项D discuss 证据revise 修正一个长期观点，正确。选项E 也不是现象，解释现象的结构，排除。
以上是关于GMAT阅读主旨题举例详解的详细内容，希望大家也能从中受益，不断改进自己的备考方法提升备考效率，从而写出漂亮的文章获得满意的成绩。更多相关内容百利天下小编会持续为大家送上，祝大家都能早日梦圆名校。
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