GRE阅读考试难句解析（六）
<p> 编辑点评： <span word="GRE">GRE</span>考试中，很多长句难句让考生们困扰不已，本文选择了部分难句给大家稍作分析。</p><p> 38.<span word="Some">Some</span> <span word="geologists">geologists</span>，<span word="however">however</span>，<span word="on">on</span> <span word="the">the</span> <span word="basis">basis</span> <span word="of">of</span> <span word="observations">observations</span> <span word="concerningmantle">concerningmantle</span> <span word="xenoliths">xenoliths</span>，<span word="argue">argue</span> <span word="that">that</span> <span word="the">the</span> <span word="mantle">mantle</span> <span word="is">is</span> <span word="not">not</span> <span word="layered">layered</span>，<span word="but">but</span> <span word="thatheterogeneity">thatheterogeneity</span> <span word="is">is</span> <span word="created">created</span> <span word="by">by</span> <span word="fluids">fluids</span> <span word="rich">rich</span> <span word="in">in</span> <span word="incompatible">incompatible</span> <span word="elements">elements</span> <span word="percolatingupward">percolatingupward</span> <span word="and">and</span> <span word="transforming">transforming</span> <span word="portions">portions</span> <span word="of">of</span> <span word="the">the</span> <span word="uppermantle">uppermantle</span> <span word="irregularly">irregularly</span>，<span word="according">according</span> <span word="to">to</span> <span word="the">the</span> <span word="vagaries">vagaries</span> <span word="of">of</span> <span word="the">the</span> <span word="fluids">fluids</span> <span word="pathways">pathways</span>.</p><p> 但是，某些地质学家，以对地幔捕虏岩体所作的观察为依据，指出地幔并非是分层排列的，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。</p><p> 39.<span word="The">The</span> <span word="very">very</span> <span word="richness">richness</span> <span word="and">and</span> <span word="complexity">complexity</span> <span word="of">of</span> <span word="the">the</span> <span word="meaningful">meaningful</span> <span word="relationshipsthat">relationshipsthat</span> <span word="kept">kept</span> <span word="presenting">presenting</span> <span word="and">and</span> <span word="rearranging">rearranging</span> <span word="themselves">themselves</span> <span word="on">on</span> <span word="all">all</span> <span word="levels">levels</span>，<span word="fromabstract">fromabstract</span> <span word="intelligence">intelligence</span> <span word="to">to</span> <span word="profound">profound</span> <span word="dreamy">dreamy</span> <span word="feelings">feelings</span>， <span word="made">made</span> <span word="it">it</span> <span word="difficultfor">difficultfor</span> <span word="Proust">Proust</span> <span word="to">to</span> <span word="set">set</span> <span word="them">them</span> <span word="out">out</span> <span word="coherently">coherently</span>.</p><p> 各种有意义的联系在所有的层次上，自抽象的理性至深刻的梦幻般的情感，层出不穷并不断重新组合排列;正是这些有意义的联系的丰富性和复杂性，致使普鲁斯特难于将它们错落有致地安排好。</p><p> 40.<span word="It">It</span> <span word="is">is</span> <span word="possible">possible</span> <span word="to">to</span> <span word="make">make</span> <span word="specific">specific</span> <span word="complementary">complementary</span> <span word="DNA">DNA</span> <span word="sthat">sthat</span> <span word="can">can</span> <span word="serve">serve</span> <span word="as">as</span> <span word="molecular">molecular</span> <span word="probes">probes</span> <span word="to">to</span> <span word="seek">seek</span> <span word="out">out</span> <span word="the">the</span> <span word="messengerRNA">messengerRNA</span> <span word="s">s</span> <span word="of">of</span> <span word="the">the</span> <span word="peptide">peptide</span> <span word="hormones">hormones</span>. <span word="If">If</span> <span word="brain">brain</span> <span word="cells">cells</span> <span word="are">are</span> <span word="making">making</span> <span word="thehormones">thehormones</span>，<span word="the">the</span> <span word="cells">cells</span> <span word="will">will</span> <span word="contain">contain</span> <span word="these">these</span> <span word="Mrna">Mrna</span> <span word="S">S</span>. <span word="If">If</span> <span word="the">the</span> <span word="products">products</span> <span word="the">the</span> <span word="braincells">braincells</span> <span word="make">make</span> <span word="resemble">resemble</span> <span word="the">the</span> <span word="hormones">hormones</span> <span word="but">but</span> <span word="are">are</span> <span word="not">not</span> <span word="identical">identical</span> <span word="to">to</span> <span word="them">them</span>，<span word="then">then</span> <span word="thecDNA">thecDNA</span> <span word="s">s</span> <span word="should">should</span> <span word="still">still</span> <span word="bind">bind</span> <span word="to">to</span> <span word="these">these</span> <span word="mRNA">mRNA</span> <span word="s">s</span>，<span word="but">but</span> <span word="should">should</span> <span word="not">not</span> <span word="bind">bind</span> <span word="astightly">astightly</span> <span word="as">as</span> <span word="they">they</span> <span word="would">would</span> <span word="to">to</span> <span word="mRNA">mRNA</span> <span word="s">s</span> <span word="for">for</span> <span word="the">the</span> <span word="true">true</span> <span word="hormones">hormones</span>.</p>
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