编辑点评: 复习GRE阅读考试的部分,除了坚持做真题练习,在做题的过程中锻炼自己的解题能力以外,总结遇到的经典句型,对于GRE阅读的提高也非常有作用。本文为大家总结了一系列GRE阅读考试中的经典句型,希望对大家有所帮助。
GRE考试阅读部分经常会出现的经典句型,有倒装句、省略句等。通过这些实例和句型,大家可以了解和归纳GRE阅读考试的知识点,适当得进行背诵,对大家的作文也一定有所帮助。
51. The best evidence for the layered-mantle thesis is the well-established fact that volcanic rocks found on oceanic islands,islands believed to result from mantle plumes arising from the lower mantle,are composed of material fundamentally different from that of the mid-ocean ridge system,whose source,most geologists contend,is the upper mantle.
对于地幔分层论点来说,最好的证据乃这样一个确认的事实,即在那些海洋岛屿 这些岛屿据信是源于由下层地幔升上来的地幔柱状溶岩流 上发现的火山岩石,是由与海洋中部山脊系统的物质根本不同的物质构成的,而这一海洋中部山脊系统的成因,大多数地质学家论辩道,为上部地幔。
52. Some geologists,however,on the basis of observations concerning mantle xenoliths,argue that the mantle is not layered,but that heterogeneity is created by fluids rich in incompatible elements percolating upward and transforming portions of the upper mantle irregularly,according to the vagaries of the fluids pathways.
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