GMAT阅读：短文章的解题技巧

100留学网快讯：GMAT阅读有长阅读和短阅读之分，但是这并不意味这短阅读就一定简单了，短阅读，尤其是一段式的文章，会有一个普遍存在的难点——结构不清晰。

一段式文章通常是学生遇到的第一篇文章，做好第一篇阅读也是非常重要的~并不是只有SC错了才掉库哦，阅读看不懂连错也是常见的~

那么我们就以下面这篇文章为例，来看看怎么应对一段式的文章。

Prior to 1965 geologists assumed that the two giant rock plates meeting at the San Andreas Fault generate heat through friction as they grind past eachother, but in 1965 Henyey found that temperatures in drill holes near the fault were not as elevated as had been expected. Some geologists wondered whether the absence of friction-generated heat could be explained by the kinds of rock composing the fault. Geologists' pre-1965 assumptions concerning heat generated in the fault were based on calculations about common varieties of rocks, such as limestone and granite; but "weaker" materials, such as clays, had already been identified in samples retrieved from the fault zone. Under normal conditions, rocks composed of clay produce far less friction than do other rock types.In 1992 Byerlee tested whether these materials would produce friction 10 to 15 kilometers below the Earth's surface. Byerlee found that when clay samples were subjected to the thousands of atmospheres of pressure they would encounter deep inside the Earth, they produced as much friction as was produced by other rock types. The harder rocks push against each other, the hotter they become; in other words, pressure itself, not only the rocks' properties, affects frictional heating. Geologists therefore wondered whether the friction between the plates was being reduced by pockets of pressurized water within the fault that push the plates away from each other.

一段式文章，因为本身篇幅不长，所以可以采取从头开始看的办法来处理，理清楚结构和层次。

首先第一句Prior to 1965 geologists assumed that the two giant rock plates meeting at the San Andreas Fault generate heat through friction as they grind past eachother, but in 1965 Henyey found that temperatures in drill holes near the fault were not as elevated as had been expected. 这句话有两个点需要注意。首先是but前面的， 1965年之前的地理学家的assume的内容，也就是assumption猜想(SAF处的两大岩层通过摩擦产热); but之后，but就是代表转折了， 出现的Henry的意外发现(SAF处的断层并没有想象中的那么高)就是对前面的地理学家的assumption进行的转折。