接下来的几天给大家整理了历届gre考试阅读真题及解析,下面这篇是1997年4月gre考试阅读真题SECTION A部分。复习gre考试阅读的时候,gre考生应该以往年的真题为复习材料,从真题中总结阅读规律和特点才是制胜法宝。
Geologists Harris and Gass hypothesized that the Red Sea rift developed along the line of a suture formed during the late Proterozoic era, and that significant observable differences in the composition of the upper layers of rocks deposited on either side of the suture give clues to the different natures of the underlying igneous rocks.
Other geologists argued that neither the upper rock layer nor the underlying igneous rocks on the one side of the rift differ fundamentally from the corresponding layers on the other side. These geologists believe, therefore, that there is inadequate evidence to conclude that a suture underlies the rift.
In response, Harris and Gass asserted that the upper rock layers on the two sides of the rift had not been shown to be of similar age, structure, or geochemical content. Furthermore, they cited new evidence that the underlying igneous rocks on either side of the rift contain significantly different kinds of rare metals.
17. Part of the Harris and Gass hypothesis about the Red Sea rift would be weakened if it could be demonstrated that the composition of upper rock layers
【gre考试阅读真题解析(A)】相关文章:
最新
2016-03-01
2016-03-01
2016-03-01
2016-03-01
2016-03-01
2016-03-01