prep模拟第一套里面的阅读题目的疑问

深高金的zkk

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 each other, 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.


这篇阅读我始终没有读懂第二段的到底是解释现象的，还是反对第一个解释的
假设：friction会产生heat
现象：但是这个没产生expected tempterature(没产生大量的热量)
part1：因为组成岩石的材料，clays是weak的，所以不能产生那么多的热量
part2：在高压的情况下，clay可以产生大量的热量，

part1作为对现象的解释，但是part2应该是反对part1的解释。
part1说不会产生热量，part2反对：在高压的情况下会产生热量。

我看网上的很多解释是把part1和part2都作为现象的解释。是我的理解错了么？求nn指正

长丝弓

牛牛们都在忙大事8
赶巧我对这篇文章也感兴趣哈，跟你一起学习学习：
第一段的主要内容相关的研究，都是基于岩石中的常见品种如石灰石和花岗岩，弱一点的材料如黏土在第二段中进一步研究
第二段首句是说检测这些（弱一点的）材料是否如何如何。第二段都是围绕这个问题（是否如何）展开阐述。

深高金的zkk

长丝弓 发表于 1小时前
第二段首句是说检测这些（弱一点的）材料是否如何如何。第二段都是围绕这个问题（是否如何）展开阐述。

那文章结构是我说的那种？还是part1和2 都作为解释呢？

长丝弓

深高金的zkk 发表于 2020-9-23 16:16
那文章结构是我说的那种？还是part1和2 都作为解释呢？

阁下敢不敢放下急于归纳总结的执念，一亲文章本身的芳泽呢？放轻松放轻松，那啥。。水水更健康哈

Catherine00001

感谢分享！