美國留學：GRE閱讀考試能力的培養(yǎng)很重要

gre閱讀考試能力的培養(yǎng)很重要。對gre、gmat的閱讀理解是必須使用結構化的巡讀法進行,這樣效率高、收效高,因為gre以及gmat閱讀理解的規(guī)律性非常強,同時我們閱讀是閱讀其文章的邏輯,因此是用邏輯思維操作邏輯閱讀。但是,我們也要知道能做對gre閱讀題目的同時,我們也要通過每一篇gre、gmat閱讀文章來強化訓練自己實實在在的閱讀能力。例如：長難句的分析能力、詞匯的積累,寫作素材的積累、以及寫作結構的掌握?？梢哉f,每一篇gre閱讀理解都是我們備考 gre、gmat寫作的issue部分的最好的素材庫以及范文展示。

現在,我們拿gre閱讀no題的no8-1這篇文章做一個示范,來說明一下怎樣提高新gre閱讀能力。

no8-1,我們從詞--句--篇章來談談這篇文章。

原文：

geologists have long known that the earth‘s mantle is heterogeneous, but its spatial arrangement remains unresolved—is the mantle essentially layered or irregularly heterogeneous? 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 midocean ridge system, whose source, most geologists contend, is the upper mantle.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 (elements tending toward liquid rather than solid state) percolating upward and transforming portions of the upper mantle irregularly, accordingto the vagaries of the fluids’ pathways. we believe, perhaps unimaginatively, that this debate can be resolved through further study, and that the underexplored midocean ridge system is the key.