求问一道GRE NO 5-1 sectionB的阅读题

himeww · 发表于 2012-12-18 14:57:51

The transfer of heat and water vapor from the ocean to the air above it depends on a disequilibrium at the interface of the water and the air. Within about a millimeter of the water, air temperature is close to that of the surface water, and the air is nearly saturated with water vapor. But the differences, however small, are crucial, and the disequilibrium is maintained by air near the surface mixing with air higher up, which is typically appreciably cooler and lower in water-vapor content. The air is mixed by means of turbulence that depends on the wind for its energy. As wind speed increases, so does turbulence, and thus the rate of heat and moisture transfer. Detailed understanding of this phenomenon awaits further study. An interacting—and complicating—phenomenon is wind-to-water transfer of momentum that occurs when waves are formed. When the wind makes waves, it transfers important amounts of energy—energy that is therefore not available to provide turbulence.

17. The primary purpose of the passage is to
(A) resolve a controversy
(B) describe a phenomenon
(C) outline a theory
(D) confirm research findings
(E) classify various observations

求问这道题为什么选B啊，文章给出了解释的啊，虽然不够完善有待进一步研究，但好歹也不是仅仅现象描述啊，C不是会更好一些吗？
万分感谢大神解答！！！

夜殇月痕 · 发表于 2012-12-24 12:49:10

首先通篇没有出现theory,C明显不对~~~而且看倒数第二行，a complicating phenomenon~~~于是选B啊

ran2010zx · 发表于 2012-12-24 20:01:17

恩恩顶楼上~~刚群里看到就被你抢先了。。。

qinxinsheng · 发表于 2013-2-14 19:24:49

我觉得2楼不对啊，不能说一篇文章没出现过theory这个词就说文章讲的不是theory啊。。。theory我查了有个定义为解释现象的东西叫theory。这篇文章解释了“热量和水蒸气的流动”这么一个现象的原理，难道不应该是theory么？

求问一道GRE NO 5-1 sectionB的阅读题

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