GRE阅读长难句解读（9）
<p> 为了方便广大考生更好的复习，综合整理了<span word="GRE">GRE</span>阅读长难句解读，以供各位考生考试复习参考,希望对考生复习有所帮助。愿大家都能取得好成绩，更多有关留学考试的资讯与辅导资料敬请关注留学考试。</p><p> 33.<span word="It">It</span> <span word="is">is</span> <span word="one">one</span> <span word="of">of</span> <span word="natures">natures</span> <span word="great">great</span> <span word="ironies">ironies</span> <span word="that">that</span> <span word="the">the</span> <span word="availability">availability</span> <span word="of">of</span> <span word="nitrogen">nitrogen</span> <span word="in">in</span> <span word="the">the</span> <span word="soil">soil</span> <span word="frequently">frequently</span> <span word="sets">sets</span> <span word="an">an</span> <span word="upper">upper</span> <span word="limit">limit</span> <span word="on">on</span> <span word="plant">plant</span> <span word="growth">growth</span> <span word="even">even</span> <span word="though">though</span> <span word="the">the</span> <span word="plants">plants</span> <span word="leaves">leaves</span> <span word="are">are</span> <span word="bathed">bathed</span> <span word="in">in</span> <span word="a">a</span> <span word="sea">sea</span> <span word="of">of</span> <span word="nitrogen">nitrogen</span> <span word="gas">gas</span>.下述情形真可谓是自然界的一个莫大讽刺：土壤中所能获得的氮肥量往往对植物的生长构成了一个上限，虽然植物的叶子被沐浴在一片氮气的海洋中。</p><p> 34.<span word="Unless">Unless</span> <span word="they">they</span> <span word="succeed">succeed</span>，<span word="the">the</span> <span word="yield">yield</span> <span word="gains">gains</span> <span word="of">of</span> <span word="the">the</span> <span word="Green">Green</span> <span word="Revolution">Revolution</span> <span word="will">will</span> <span word="be">be</span> <span word="largely">largely</span> <span word="lost">lost</span> <span word="even">even</span> <span word="if">if</span> <span word="the">the</span> <span word="genes">genes</span> <span word="in">in</span> <span word="legumes">legumes</span> <span word="that">that</span> <span word="equip">equip</span> <span word="those">those</span> <span word="plants">plants</span> <span word="to">to</span> <span word="enter">enter</span> <span word="into">into</span> <span word="a">a</span> <span word="symbiosis">symbiosis</span> <span word="with">with</span> <span word="nitrogen">nitrogen</span> <span word="fixers">fixers</span> <span word="are">are</span> <span word="identified">identified</span> <span word="and">and</span> <span word="isolated">isolated</span>，<span word="and">and</span> <span word="even">even</span> <span word="if">if</span> <span word="the">the</span> <span word="transfer">transfer</span> <span word="of">of</span> <span word="those">those</span> <span word="gene">gene</span> <span word="complexes">complexes</span>，<span word="once">once</span> <span word="they">they</span> <span word="are">are</span> <span word="found">found</span>， <span word="becomes">becomes</span> <span word="possible">possible</span>.</p><p> 除非他们能取得成功，不然的话，绿色革命的产量收益将在很大程度上损失殆尽，即使豆科植物中使这些植物有条件进入到与固氮细菌共生关系的基因可被辨识出来和分离开来的话，且即使这些基因综合体，一旦被发现之后，其移植得以成为可能的话。</p><p> 35.<span word="Its">Its</span> <span word="subjectis">subjectis</span> <span word="life">life</span>-<span word="as">as</span>-<span word="spectacle">spectacle</span>， <span word="for">for</span> <span word="readers">readers</span>， <span word="diverted">diverted</span> <span word="by">by</span> <span word="its">its</span> <span word="various">various</span> <span word="incidents">incidents</span>，<span word="observe">observe</span> <span word="its">its</span> <span word="hero">hero</span> <span word="Odysseus">Odysseus</span> <span word="primarily">primarily</span> <span word="from">from</span> <span word="without">without</span>;<span word="the">the</span> <span word="tragic">tragic</span> <span word="Iliad">Iliad</span>，<span word="however">however</span>，<span word="presents">presents</span> <span word="life">life</span>-<span word="as">as</span>-<span word="experience">experience</span>：<span word="readers">readers</span> <span word="are">are</span> <span word="asked">asked</span> <span word="to">to</span> <span word="identify">identify</span> <span word="with">with</span> <span word="the">the</span> <span word="mind">mind</span> <span word="of">of</span> <span word="Achilles">Achilles</span>，<span word="whose">whose</span> <span word="motivations">motivations</span> <span word="render">render</span> <span word="him">him</span> <span word="a">a</span> <span word="not">not</span> <span word="particularly">particularly</span> <span word="likable">likable</span> <span word="hero">hero</span>.</p>
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