1、 托福阅读文章：你能从中“读”出更多吗？我的文库_个人文库_百度文库沃尔得编辑点评：你想在托福考试各项测试中胜人一筹吗？利用托福阅读备考，收获的不仅仅是阅读好分数哦。托福阅读的备考过程中，我们除了应试技巧，还能学到什么呢？一篇托福阅读文章，哪些方面是我们值得分析的呢？本文中，沃尔得英语以一篇阅读文章为例，提取它的难词，难句，复杂的文章结构，说明我们应该从阅读文章中获得些什么资源。提炼一个文章的哪些“语言要素”除了有助于我们在阅读中游刃有余，也有助于托福写作能力的提高。原文：Geologists have long known that the Earths mantle is heteroge
2、neous, but its spatial arrangement remains unresolvedis 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 t
3、he 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 heter
4、ogeneity 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
5、 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 the layered-mantle thesis is the well-established fact t
6、hat 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
7、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(mantle plume)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。难句类型：复杂修饰、插入语解释：本句前面的主干并不算难，即 the evidence is the fact that,难就难在 fact 之后说明 fact 的同位语从句。此从句中既有大段插入语，又有从句，较为难读。同位语从句的主语是volcanic rocks，主语后面的 found on oceanic islands 是分词修饰 volcanic rocks 的;islan
8、ds 后面又有一个说明 islands 的同位语 islands believed to result from mantle plumes arising from the lower mantle,此同位语实际起到一个分隔主谓的同位语的作用。其后是谓语动词 are composed/of fundamentally different from that of the midocean ridge system, whose source, most geologists contend, is the upper mantle。句中有一些专有词汇。如果抛开文章不说，单看这一个句子，则句首
9、的 layered mantle thesis 就难以理解。但是如果读者能够读懂句子的大致意思，看到 layered mantle thesisr 最有力证据就是其材料 fundamentally different from the upper mantle,这应该可以推测出，既然不同于上层地幔，则这个理论一定是在说地幔有不同的层面。2. some geologists，however ，on the basis of observations concerning mantle xenoliths， argue that the mantle is not layered，but that
10、 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. (4+)但是，某些地质学家，以对地幔捕虏岩体(xenolith)所作的观察为依据，指出地幔并非是分
11、层排列的，相反，地幔的异质性是由那些富含“不相容成分”的流质构成的，这些成分趋向于流体而非固体的状态，自下而上渗透扩散，并依照这些流质流向的任意性，不规则地将上部地幔的某些部分予以改变。难句类型：复杂修饰、插入语解释：本句的主句中有一个长插入语 however,on the basis of observations concerning mantle xenoliths,割裂了主谓，但句子的主要难度还是在 that 引导的宾语从句中，从句中有由 but 所连接的两个句子，一起延续到句末。首选是 rich in incompatible elements 修饰 fluids;后面又有一个同位语
12、和一个分词结构，都是修饰 incompatible elements 的，最后还有一个状语来修饰那个分词结构，层层修饰，比较复杂。三、文章结构Ts 是文章的第一句，因此这一篇短文章是结论解释型。文章开始说出了地幔是heterogeneous,然后又指出了他的 spatial arrangement remains unresolved,然后提出了两种理论，一是 layyered-mantle thesis,另外一个是 irregularly heterogeneous.然后分别对这两种理论进行describe.最后作者指出，We believe,perhaps unimaginatively, that this debate can be resolved through further study, and that the underexplored midocean ridge system is the key.托福备考过程中，若要取得胜人一筹的高分，我们就需要在应试技巧的基础上，从难词、难句、文章结构等方面做分析吃透，才能真正充实英语能力，提高各方面的水准。文章来源： www.zzjyedu.org
