GRE阅读主旨题常见问法与解题思路

GRE阅读题主要考察考生的三方面能力：1、对文章大逻辑把握能力，2、文章小逻辑的把握能力，3、细节的精确定位与同义替换的能力。主旨题考察的就是学生对GRE阅读文章大逻辑的把握能力，有两种常见题型：内容性主旨题和架构性主旨题。下面，小编整理了阅读主旨题的常见问法与解题思路。

2种常见问法

内容性主旨题：1、 The primary purpose of the passage is to…；2、  The author is primarily concerned with…。
       架构性主旨题：1、  Which of the following best states the central idea of the passage? 2、 Which of the following statements best describes the organization of…

2个解题思路：

解决主旨题有两大思路：
      1、从文章入手，着重分析段落的首句。西方人写文章一般为PIE 结构(point，illustrate，explain)，所以段落首句通常为中心句。解答GRE阅读首先需要考生改变自己的阅读方法，以迅速提高答题效率。
      2、从选项入手，重点分析5个待选的选项。对于主旨题来说，正确的选项都是对于文章的概括或者是对于背景的交代，所以我们可以先剔除那些包含具体事物描述或叙述的选项。需要强调的是，这种解答思路不适合每一道主旨题，而是能够加快我们解题速度的一种方法。

2类题型事例

内容性主旨题实例：
       A mysterious phenomenon is the ability of over-water migrants to travel on course. Birds, bees, and other species can keep track of time without any sensory cues from the outside world, and such “biological clocks” clearly contribute to their “compass sense.” For example, they can use the position of the Sun or stars, along with the time of day, to find north. But compass sense alone cannot explain how birds navigate the ocean: after a flock traveling east is blown far south by a storm, it will assume the proper northeasterly course to compensate. Perhaps, some scientists thought, migrants determine their geographic position on Earth by celestial navigation, almost as human navigators use stars and planets, but this would demand of the animals a fantastic map sense. Researchers now know that some species have a magnetic sense, which might allow migrants to determine their geographic location by detecting variations in the strength of the Earth's magnetic field.

1. The main idea of the passage is that
      (A) migration over land requires a simpler explanation than migration over water does
      (B) the means by which animals migrate over water are complex and only partly understood
      (C) the ability of migrant animals to keep track of time is related to their magnetic sense
      (D) knowledge of geographic location is essential to migrants with little or no compass sense
      (E) explanations of how animals migrate tend to replace, rather than build on, one another

解题思路：1. 找中心句，2. 浏览一下整个文章 3. 找中心句的同义替换句。第一句话A mysterious phenomenon is the ability of over-water migrants to travel on course.很快的选出B 为正确选项。

结构型主旨题实例：
       Because of its accuracy in outlining the Earth’s subsurface, the seismic-reflection method remains the most important tool in the search for petroleum reserves. In field practice, a subsurface is mapped by arranging a series of wave-train sources, such as small dynamite explosions, in a grid pattern. As each source is activated, it generates a wave train that moves downward at a speed determined uniquely by the rock’s elastic characteristics. As rock interfaces are crossed, the elastic characteristics encountered generally change abruptly, which causes part of the energy to be reflected back to the surface, where it is recorded by seismic instruments. The seismic records must be processed to correct for positional differences between the source and the receiver, for unrelated wave trains, and for multiple reflections from the rock interfaces. Then the data acquired at each of the specific source locations are combined to generate a physical profile of the subsurface, which can eventually be used to select targets for drilling.

Which of the following best describes the organization of the passage?
      (A)A method is criticized, and an alternative is suggested.
      (B)An illustration is examined, and some errors are exposed.
      (C)An assertion is made, and a procedure is outlined.
      (D)A series of examples is presented, and a conclusion is drawn.
      (E)A hypothesis is advanced, and supporting evidence is supplied.

解题思路：1.找中心句；2.找主要逻辑指示词；3.排除错误项。文章的第一句话就提出了观点：Because of its accuracy in outlining the Earth’s subsurface, the seismic-reflection method remains the most important tool in the search for petroleum reserves.五个选项只有C项是对中心句文章后续逻辑的同义替换，所以c 是正确选项。

GRE阅读主旨题是GRE阅读各类题目中比较简单的一种题型，只要能够很好地理解段落的中心句并能准确把握段落逻辑脉络，这类题目的分数都是能够得到的。

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【成功案例】
朱女士，英语零基础，培训后，英语41分过线，考上中国美院研究生。 张同学，托福阅读满分。 王同学，托福阅读29分。

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