新GRE逻辑阅读 每日一练35
<p> 编辑点评： <span word="GRE">GRE</span>阅读考试的材料，非常强调逻辑的关系，所以逻辑要点是大家在解<span word="GRE">GRE</span>阅读题的时候的关键，本文就为大家例举了这样一篇逻辑短文，供大家参考和练习。</p><p> 随着<span word="GRE">GRE</span>阅读考试的难度日益增加，大家需要有针对性地进行练习，本文为大家例举的就是逻辑短文的练习，文末还附有答案，供大家更好地练习。</p><p> <span word="Biologists">Biologists</span> <span word="have">have</span> <span word="long">long</span> <span word="maintained">maintained</span> <span word="that">that</span> <span word="two">two</span> <span word="groups">groups</span> <span word="of">of</span> <span word="pinnipeds">pinnipeds</span>, <span word="sea">sea</span> <span word="lions">lions</span> <span word="and">and</span> <span word="walruses">walruses</span>, <span word="are">are</span> <span word="descended">descended</span> <span word="from">from</span> <span word="a">a</span> <span word="terrestrial">terrestrial</span> <span word="bearlike">bearlike</span> <span word="animal">animal</span>, <span word="whereas">whereas</span> <span word="the">the</span> <span word="remaining">remaining</span> <span word="group">group</span>, <span word="seals">seals</span>, <span word="shares">shares</span> <span word="an">an</span> <span word="ancestor">ancestor</span> <span word="with">with</span> <span word="weasels">weasels</span>. <span word="But">But</span> <span word="the">the</span> 5 <span word="recent">recent</span> <span word="discovery">discovery</span> <span word="of">of</span> <span word="detailed">detailed</span> <span word="similarities">similarities</span> <span word="in">in</span> <span word="the">the</span> <span word="skeletal">skeletal</span> <span word="structure">structure</span> <span word="of">of</span> <span word="the">the</span> <span word="flippers">flippers</span> <span word="in">in</span> <span word="all">all</span> <span word="three">three</span> <span word="groups">groups</span> <span word="undermines">undermines</span> <span word="the">the</span> <span word="attempt">attempt</span> <span word="to">to</span> <span word="explain">explain</span> <span word="away">away</span> <span word="superficial">superficial</span> <span word="resemblance">resemblance</span> <span word="as">as</span> <span word="due">due</span> <span word="to">to</span> <span word="convergent">convergent</span> <span word="evolution">evolution</span> <span word="the">the</span> <span word="independent">independent</span> <span word="develop">develop</span>-<span word="ment">ment</span> <span word="of">of</span> <span word="similarities">similarities</span> <span word="between">between</span> <span word="unrelated">unrelated</span> <span word="groups">groups</span> <span word="in">in</span> 10 <span word="response">response</span> <span word="to">to</span> <span word="similar">similar</span> <span word="environmental">environmental</span> <span word="pressures">pressures</span>. <span word="Flippers">Flippers</span> <span word="may">may</span> <span word="indeed">indeed</span> <span word="be">be</span> <span word="a">a</span> <span word="necessary">necessary</span> <span word="response">response</span> <span word="to">to</span> <span word="aquatic">aquatic</span> <span word="life">life</span>,<span word="turtles">turtles</span>, <span word="whales">whales</span>, <span word="and">and</span> <span word="dugongs">dugongs</span> <span word="also">also</span> <span word="have">have</span> <span word="them">them</span>. <span word="But">But</span> <span word="the">the</span> <span word="common">common</span> <span word="detailed">detailed</span> <span word="design">design</span> <span word="found">found</span> <span word="among">among</span> <span word="the">the</span> <span word="pinnipeds">pinnipeds</span> <span word="probably">probably</span> <span word="indicates">indicates</span> <span word="a">a</span> <span word="common">common</span> <span word="ancestor">ancestor</span>. <span word="Moreover">Moreover</span>,15 <span word="walruses">walruses</span> <span word="and">and</span> <span word="seals">seals</span> <span word="drive">drive</span> <span word="themselves">themselves</span> <span word="through">through</span> <span word="the">the</span> <span word="water">water</span> <span word="with">with</span> <span word="thrusts">thrusts</span> <span word="of">of</span> <span word="their">their</span> <span word="hind">hind</span> <span word="flippers">flippers</span>, <span word="but">but</span> <span word="sea">sea</span> <span word="lions">lions</span> <span word="use">use</span> <span word="their">their</span> <span word="front">front</span> <span word="flippers">flippers</span>. <span word="If">If</span> <span word="anatomical">anatomical</span> <span word="similarity">similarity</span> <span word="in">in</span> <span word="the">the</span> <span word="flippers">flippers</span> <span word="resulted">resulted</span> <span word="from">from</span> <span word="similar">similar</span> <span word="environmental">environmental</span> <span word="pressures">pressures</span>, <span word="as">as</span> <span word="posited">posited</span> <span word="by">by</span> <span word="the">the</span> <span word="convergent">convergent</span>-<span word="evolution">evolution</span> <span word="theory">theory</span>, <span word="one">one</span> 20 <span word="would">would</span> <span word="expect">expect</span> <span word="walruses">walruses</span> <span word="and">and</span> <span word="seals">seals</span>, <span word="but">but</span> <span word="not">not</span> <span word="seals">seals</span> <span word="and">and</span> <span word="sea">sea</span> <span word="lions">lions</span>, <span word="to">to</span> <span word="have">have</span> <span word="similar">similar</span> <span word="flippers">flippers</span>.</p>
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