六级冲刺练习：阅读（117）
<p> <span word="Laws">Laws</span> <span word="of">of</span> <span word="Nature">Nature</span>, <span word="however">however</span>, <span word="are">are</span> <span word="not">not</span> <span word="commands">commands</span> <span word="but">but</span> <span word="statements">statements</span> <span word="of">of</span> <span word="facts">facts</span>. <span word="The">The</span> <span word="use">use</span> <span word="of">of</span> <span word="the">the</span> <span word="same">same</span> <span word="word">word</span> <span word="is">is</span> <span word="unfortunate">unfortunate</span>. <span word="It">It</span> <span word="would">would</span> <span word="be">be</span> <span word="better">better</span> <span word="to">to</span> <span word="speak">speak</span> <span word="of">of</span> <span word="uniformities">uniformities</span> <span word="of">of</span> <span word="Nature">Nature</span>. <span word="This">This</span> <span word="would">would</span> <span word="do">do</span> <span word="away">away</span> <span word="with">with</span> <span word="the">the</span> <span word="elementary">elementary</span> <span word="fallacy">fallacy</span> <span word="that">that</span> <span word="a">a</span> <span word="law">law</span> <span word="implies">implies</span> <span word="a">a</span> <span word="law">law</span>-<span word="giver">giver</span>. <span word="Incidentally">Incidentally</span>, <span word="it">it</span> <span word="might">might</span> <span word="just">just</span> <span word="as">as</span> <span word="well">well</span> <span word="imply">imply</span> <span word="a">a</span> <span word="parliament">parliament</span> <span word="or">or</span> <span word="soviet">soviet</span> <span word="of">of</span> <span word="atoms">atoms</span>. <span word="But">But</span> <span word="the">the</span> <span word="difference">difference</span> <span word="between">between</span> <span word="the">the</span> <span word="two">two</span> <span word="uses">uses</span> <span word="of">of</span> <span word="the">the</span> <span word="word">word</span> <span word="is">is</span> <span word="fundamental">fundamental</span>. <span word="If">If</span> <span word="a">a</span> <span word="piece">piece</span> <span word="of">of</span> <span word="matter">matter</span> <span word="does">does</span> <span word="not">not</span> <span word="obey">obey</span> <span word="a">a</span> <span word="law">law</span> <span word="of">of</span> <span word="Nature">Nature</span> <span word="it">it</span> <span word="is">is</span> <span word="not">not</span> <span word="punished">punished</span>. <span word="On">On</span> <span word="the">the</span> <span word="contrary">contrary</span>, <span word="we">we</span> <span word="say">say</span> <span word="that">that</span> <span word="the">the</span> <span word="law">law</span> <span word="has">has</span> <span word="been">been</span> <span word="incorrectly">incorrectly</span> <span word="stated">stated</span>, <span word="It">It</span> <span word="is">is</span> <span word="quite">quite</span> <span word="probable">probable</span> <span word="that">that</span> <span word="every">every</span> <span word="law">law</span> <span word="of">of</span> <span word="Nature">Nature</span> <span word="so">so</span> <span word="far">far</span> <span word="stated">stated</span> <span word="has">has</span> <span word="been">been</span> <span word="stated">stated</span> <span word="incorrectly">incorrectly</span>. <span word="Certainly">Certainly</span> <span word="many">many</span> <span word="of">of</span> <span word="them">them</span> <span word="have">have</span>. <span word="Nevertheless">Nevertheless</span>, <span word="these">these</span> <span word="inaccurately">inaccurately</span> <span word="stated">stated</span> <span word="laws">laws</span> <span word="are">are</span> <span word="of">of</span> <span word="immense">immense</span> <span word="practical">practical</span> <span word="and">and</span> <span word="theoretical">theoretical</span> <span word="value">value</span>.</p><p> <span word="They">They</span> <span word="fall">fall</span> <span word="into">into</span> <span word="two">two</span> <span word="classes">classes</span>-<span word="qualitative">qualitative</span> <span word="laws">laws</span> <span word="such">such</span> <span word="as">as</span> <span word="All">All</span> <span word="animals">animals</span> <span word="with">with</span> <span word="feathers">feathers</span> <span word="have">have</span> <span word="beaks">beaks</span>, <span word="and">and</span> <span word="quantitative">quantitative</span> <span word="laws">laws</span> <span word="such">such</span> <span word="as">as</span> <span word="Mercury">Mercury</span> <span word="has">has</span> 13,596 <span word="times">times</span> <span word="the">the</span> <span word="density">density</span> <span word="of">of</span> <span word="water">water</span>. <span word="The">The</span> <span word="first">first</span> <span word="of">of</span> <span word="these">these</span> <span word="is">is</span> <span word="a">a</span> <span word="very">very</span> <span word="good">good</span> <span word="guide">guide</span>. <span word="But">But</span> <span word="it">it</span> <span word="was">was</span> <span word="probably">probably</span> <span word="not">not</span> <span word="true">true</span> <span word="in">in</span> <span word="the">the</span> <span word="past">past</span>. <span word="For">For</span> <span word="many">many</span> <span word="birds">birds</span> <span word="which">which</span> <span word="were">were</span> <span word="certainly">certainly</span> <span word="feathered">feathered</span> <span word="had">had</span> <span word="teeth">teeth</span> <span word="and">and</span> <span word="may">may</span> <span word="not">not</span> <span word="have">have</span> <span word="had">had</span> <span word="beaks">beaks</span>. <span word="And">And</span> <span word="it">it</span> <span word="is">is</span> <span word="quite">quite</span> <span word="possibly">possibly</span> <span word="not">not</span> <span word="today">today</span>. <span word="There">There</span> <span word="are">are</span> <span word="about">about</span> <span word="a">a</span> <span word="hundred">hundred</span> <span word="thousand">thousand</span> <span word="million">million</span> <span word="birds">birds</span> <span word="on">on</span> <span word="our">our</span> <span word="planet">planet</span>, <span word="and">and</span> <span word="it">it</span> <span word="may">may</span> <span word="well">well</span> <span word="be">be</span> <span word="that">that</span> <span word="two">two</span> <span word="or">or</span> <span word="three">three</span> <span word="of">of</span> <span word="them">them</span> <span word="are">are</span> <span word="freaks">freaks</span> <span word="which">which</span> <span word="have">have</span> <span word="not">not</span> <span word="developed">developed</span> <span word="a">a</span> <span word="beak">beak</span>. <span word="But">But</span> <span word="have">have</span> <span word="lived">lived</span> <span word="long">long</span> <span word="enough">enough</span> <span word="to">to</span> <span word="grow">grow</span> <span word="feathers">feathers</span>. <span word="It">It</span> <span word="was">was</span> <span word="thought">thought</span> <span word="to">to</span> <span word="be">be</span> <span word="a">a</span> <span word="law">law</span> <span word="of">of</span> <span word="Nature">Nature</span> <span word="that">that</span> <span word="female">female</span> <span word="mammals">mammals</span> <span word="had">had</span> <span word="mammary">mammary</span> <span word="glands">glands</span>, <span word="until">until</span> <span word="Prof">Prof</span>. <span word="Crew">Crew</span> <span word="of">of</span> <span word="Edinburgh">Edinburgh</span> <span word="found">found</span> <span word="that">that</span> <span word="many">many</span> <span word="congenitally">congenitally</span> <span word="hairless">hairless</span> <span word="female">female</span> <span word="mice">mice</span> <span word="lacked">lacked</span> <span word="these">these</span> <span word="organs">organs</span>, <span word="though">though</span> <span word="they">they</span> <span word="could">could</span> <span word="bear">bear</span> <span word="young">young</span> <span word="which">which</span> <span word="other">other</span> <span word="females">females</span> <span word="could">could</span> <span word="then">then</span> <span word="foster">foster</span>.</p>
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