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02-23
托福阅读中如何处理难词难句：托福阅读段子中有大量的词汇，如果遇见一些难词难句都是很正常的，对于不影响文意理解的，我们可以不用管它，不过，如果涉及到文章的重要内容，我们应该怎样处理托福阅读中的难词难句呢？下面我们来举一个例子，实际解读一下如果处理托福阅读中的难词难句。
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, according to 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.
一、难词
spatial: a.1.空间的，太空的;2.存在(或者发生)于宇宙空间的
plume: n.1.羽状物2.柱，地柱
xenolith:俘虏岩
percolate:v.1.渗透2.扩散到，弥漫于
portions: n.一部分
二、难句
1.the best evidence for t...
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