GMAT综合推理虽然在整体要求上既不如数学考计算和分析能力,也不如语文对阅读和推理那么看重,却结合了这两大部分所长,题目难度并不简单。比如其中的图表题,就常会难倒不少考生。下面小编就结合综合推理的经典真题为大家做实例讲解。GMAT综合推理四大题型真题解析
GMAT综合推理IR经典真题实例分析
The diagram shows, in three column groupings, various divisions of Earth's geological history since its formation approximately 4,600 million years ago. In the leftmost column grouping, the Precambrian eon is subdivided into chronometric eons shown on the far left; but otherwise, in the rest of the graphic, each subsequent column to the right shows the subdivisions of the timeframes to its left. Each of the rightmost two column groupings is a magnification—with additional information—of a portion of the grouping directly to its left.
Fill each blank to create the most accurate statement on the basis of the information provided.
The Miocene epoch spans closest to __1__ of the era of which it is a part.
According to the diagram the beginning of the __2__ marks the onset of a new eon, era, and period in geological history.
1. A 3% B 25% C 85%
2. A Cambrian period B Triassic period C Pliocene epoch D Precambrian eon
正确答案:
B A
解题思路:
读题可知,图中每一纵列的时间轴在左边,单位是Millions of Years,而且越往下,发生的时间越早,越接近上方,其发生的时间距离现在就越近。
第一个答案选25%%u3002Miocene 本身的span是(估算)5到23=18 M ann. Miocene所在的Era是(注意看第二纵列的Title)橘黄色的Cenozoic,其span是0到70= 70 M ann. 所以18/70=0.25左右。
第二个,问的是哪一个的Beginning就是一个eon的开端,同时又是一个Era和一个Period的开端。看图,第一纵列告诉我们只涉及两个Eon,只有一个(天蓝色的Phanerozoic)有细分为Era和Period,所以就选这个天蓝色的打头第一个就是答案。于是第二纵列告诉我们,属于蓝色的第一个应该是Cambrian.
以上就是小编为大家实例讲解的GMAT综合推理图表题的一些解题思路和方法。考生如果想要在综合推理IR中取得佳绩,那么通过练习掌握解题思路和方法,正是最有效率的备考方式。
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