新GRE逻辑阅读 每日一练36
<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="Question">Question</span> 4 <span word="is">is</span> <span word="based">based</span> <span word="on">on</span> <span word="the">the</span> <span word="following">following</span> <span word="reading">reading</span> <span word="passage">passage</span>.</p><p> <span word="According">According</span> <span word="to">to</span> <span word="astronomer">astronomer</span> <span word="S">S</span>.<span word="A">A</span>. <span word="Phinney">Phinney</span>, <span word="kicking">kicking</span> <span word="a">a</span> <span word="rock">rock</span> <span word="hard">hard</span> <span word="enough">enough</span> <span word="to">to</span> <span word="free">free</span> <span word="it">it</span> <span word="from">from</span> <span word="Earth">Earth</span> <span word="s">s</span> <span word="gravity">gravity</span> <span word="would">would</span> <span word="require">require</span> <span word="a">a</span> <span word="meteorite">meteorite</span> <span word="capable">capable</span> <span word="of">of</span> <span word="making">making</span> <span word="a">a</span> <span word="crater">crater</span> <span word="more">more</span> <span word="than">than</span> 60 <span word="miles">miles</span> <span word="across">across</span>. <span word="Moreover">Moreover</span>, <span word="even">even</span> <span word="if">if</span> <span word="Earth">Earth</span> <span word="rocks">rocks</span> <span word="were">were</span> <span word="freed">freed</span> <span word="by">by</span> <span word="meteorite">meteorite</span> <span word="impact">impact</span>, <span word="Mars">Mars</span> <span word="s">s</span> <span word="orbit">orbit</span> <span word="is">is</span> <span word="much">much</span> <span word="larger">larger</span> <span word="than">than</span> <span word="Earth">Earth</span> <span word="s">s</span>, <span word="so">so</span> <span word="Phinney">Phinney</span> <span word="estimates">estimates</span> <span word="that">that</span> <span word="the">the</span> <span word="probability">probability</span> <span word="of">of</span> <span word="these">these</span> <span word="rocks">rocks</span> <span word="hitting">hitting</span> <span word="Mars">Mars</span> <span word="is">is</span> <span word="about">about</span> <span word="one">one</span>-<span word="tenth">tenth</span> <span word="as">as</span> <span word="great">great</span> <span word="as">as</span> <span word="that">that</span> <span word="of">of</span> <span word="Mars">Mars</span> <span word="s">s</span> <span word="rocks">rocks</span> <span word="hitting">hitting</span> <span word="Earth">Earth</span>. <span word="To">To</span> <span word="demonstrate">demonstrate</span> <span word="this">this</span> <span word="estimate">estimate</span>, <span word="Phinney">Phinney</span> <span word="used">used</span> <span word="a">a</span> <span word="computer">computer</span> <span word="to">to</span> <span word="calculate">calculate</span> <span word="where">where</span> 1,000 <span word="hypothetical">hypothetical</span> <span word="particles">particles</span> <span word="would">would</span> <span word="go">go</span> <span word="if">if</span> <span word="ejected">ejected</span> <span word="from">from</span> <span word="Earth">Earth</span> <span word="in">in</span> <span word="random">random</span> <span word="directions">directions</span>. <span word="He">He</span> <span word="found">found</span> <span word="that">that</span> 17 <span word="of">of</span> <span word="the">the</span> 1,000 <span word="particles">particles</span> <span word="would">would</span> <span word="hit">hit</span> <span word="Mars">Mars</span>.</p><p> 4. <span word="Which">Which</span> <span word="of">of</span> <span word="the">the</span> <span word="following">following</span>, <span word="if">if</span> <span word="true">true</span>, <span word="would">would</span> <span word="cast">cast</span> <span word="most">most</span> <span word="doubt">doubt</span> <span word="on">on</span> <span word="Phinney">Phinney</span> <span word="s">s</span> <span word="estimate">estimate</span> <span word="of">of</span> <span word="the">the</span> <span word="probability">probability</span> <span word="of">of</span> <span word="Earth">Earth</span> <span word="rocks">rocks</span> <span word="hitting">hitting</span> <span word="Mars">Mars</span>?</p><p> ○<span word="A">A</span> <span word="Rather">Rather</span> <span word="than">than</span> <span word="going">going</span> <span word="in">in</span> <span word="random">random</span> <span word="directions">directions</span>, <span word="about">about</span> 25 <span word="percent">percent</span> <span word="of">of</span> <span word="all">all</span> <span word="particles">particles</span> <span word="ejected">ejected</span> <span word="from">from</span> <span word="Earth">Earth</span> <span word="go">go</span> <span word="in">in</span> <span word="the">the</span> <span word="same">same</span> <span word="direction">direction</span> <span word="into">into</span> <span word="space">space</span>.</p><p> ○<span word="B">B</span> <span word="Approximately">Approximately</span> 100 <span word="meteorites">meteorites</span> <span word="large">large</span> <span word="enough">enough</span> <span word="to">to</span> <span word="make">make</span> <span word="a">a</span> <span word="noticeable">noticeable</span> <span word="crater">crater</span> <span word="hit">hit</span> <span word="the">the</span> <span word="Earth">Earth</span> <span word="each">each</span> <span word="year">year</span>.</p>
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