职称英语真题理工2008年B类：阅读理解
<p> 导语：以下英语网为大家整理了全面的职称英语考试历年真题及答案解析，《职称英语考试试题汇总：历年真题及答案解析》供大家参考学习。更多职称英语考试试题敬请关注英语网！</p><p>【推荐】关注英语网微信：<span word="yingyuwang">yingyuwang</span>2013，更快获取真题答案及成绩查询信息。</p><p> 第4部分：阅读理解(第31～45题，每题3分，45分)</p><p> 下面有3篇短文，每篇短文后有5道题。请根据短文内容，为每题确定1个最佳选项。</p><p> 第一篇 <span word="Sunspots">Sunspots</span></p><p> <span word="Its">Its</span> <span word="not">not</span> <span word="surprising">surprising</span> <span word="that">that</span> <span word="sunspots">sunspots</span>(太阳黑子)<span word="were">were</span> <span word="observed">observed</span> <span word="by">by</span> <span word="ancient">ancient</span> <span word="astronomers">astronomers</span>(天文学家).<span word="The">The</span> <span word="largest">largest</span> <span word="sunspots">sunspots</span> <span word="on">on</span> <span word="the">the</span> <span word="sun">sun</span> <span word="can">can</span> <span word="be">be</span> <span word="seen">seen</span> <span word="without">without</span> <span word="a">a</span> <span word="telescope">telescope</span>.<span word="It">It</span> <span word="was">was</span> <span word="not">not</span> <span word="until">until</span> <span word="the">the</span> <span word="invention">invention</span> <span word="of">of</span> <span word="the">the</span> <span word="telescope">telescope</span>(望远镜)<span word="in">in</span> <span word="the">the</span> <span word="early">early</span> <span word="l">l</span>7<span word="th">th</span> <span word="century">century</span>，<span word="however">however</span>，<span word="that">that</span> <span word="systematic">systematic</span> <span word="studies">studies</span> <span word="of">of</span> <span word="sunspots">sunspots</span> <span word="could">could</span> <span word="be">be</span> <span word="undertaken">undertaken</span>.<span word="The">The</span> <span word="great">great</span> <span word="astronomer">astronomer</span> <span word="Galileo">Galileo</span> <span word="was">was</span> <span word="among">among</span> <span word="the">the</span> <span word="first">first</span> <span word="to">to</span> <span word="make">make</span> <span word="telescopic">telescopic</span> <span word="observations">observations</span> <span word="of">of</span> <span word="sunspots">sunspots</span>.</p><p> <span word="Sunspots">Sunspots</span> <span word="are">are</span> <span word="regions">regions</span> <span word="of">of</span> <span word="extremely">extremely</span> <span word="strong">strong</span> <span word="magnetic">magnetic</span> <span word="fields">fields</span>(磁场)<span word="found">found</span> <span word="on">on</span> <span word="the">the</span> <span word="suns">suns</span> <span word="surface">surface</span>.<span word="A">A</span> <span word="sunspot">sunspot</span> <span word="has">has</span> <span word="a">a</span> <span word="dark">dark</span> <span word="central">central</span> <span word="core">core</span> <span word="known">known</span> <span word="as">as</span> <span word="the">the</span> <span word="umbra">umbra</span>.<span word="The">The</span> <span word="umbra">umbra</span> <span word="is">is</span> <span word="surrounded">surrounded</span> <span word="by">by</span> <span word="a">a</span> <span word="dark">dark</span> <span word="ring">ring</span> <span word="called">called</span> <span word="the">the</span> <span word="penumbra">penumbra</span>，<span word="where">where</span> <span word="the">the</span> <span word="magnetic">magnetic</span> <span word="field">field</span> <span word="spreads">spreads</span> <span word="outward">outward</span>.<span word="Sunspots">Sunspots</span> <span word="appear">appear</span> <span word="dark">dark</span> <span word="because">because</span> <span word="they">they</span> <span word="are">are</span> <span word="giving">giving</span> <span word="off">off</span> <span word="less">less</span> <span word="radiation">radiation</span>.<span word="They">They</span> <span word="are">are</span> <span word="cooler">cooler</span> <span word="than">than</span> <span word="the">the</span> <span word="rest">rest</span> <span word="of">of</span> <span word="the">the</span> <span word="suns">suns</span> <span word="surface">surface</span>.</p><p> <span word="Sunspots">Sunspots</span> <span word="are">are</span> <span word="frequently">frequently</span> <span word="observed">observed</span> <span word="in">in</span> <span word="pairs">pairs</span> <span word="or">or</span> <span word="in">in</span> <span word="paired">paired</span> <span word="groups">groups</span>.<span word="The">The</span> <span word="members">members</span> <span word="of">of</span> <span word="a">a</span> <span word="spot">spot</span> <span word="pair">pair</span> <span word="are">are</span> <span word="identified">identified</span> <span word="as">as</span> <span word="the">the</span> <span word="leading">leading</span> <span word="spot">spot</span> <span word="and">and</span> <span word="the">the</span> <span word="following">following</span> <span word="spot">spot</span>.<span word="They">They</span> <span word="are">are</span> <span word="identified">identified</span> <span word="by">by</span> <span word="their">their</span> <span word="position">position</span> <span word="in">in</span> <span word="the">the</span> <span word="pair">pair</span> <span word="in">in</span> <span word="terms">terms</span> <span word="of">of</span> <span word="the">the</span> <span word="direction">direction</span> <span word="in">in</span> <span word="which">which</span> <span word="the">the</span> <span word="sun">sun</span> <span word="rotates">rotates</span>(旋转).</p>
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