2015考研英语阅读天体化学
<p> <span word="Astrochemistry">Astrochemistry</span></p><p> 天体化学</p><p> <span word="The">The</span> <span word="great">great</span> <span word="test">test</span> <span word="tube">tube</span> <span word="in">in</span> <span word="the">the</span> <span word="sky">sky</span></p><p> 空中的大试管</p><p> <span word="Space">Space</span> <span word="is">is</span> <span word="one">one</span> <span word="big">big</span> <span word="chemistry">chemistry</span> <span word="set">set</span></p><p> 宇宙是一个很大的化学装置</p><p> <span word="MOST">MOST</span> <span word="people">people</span> <span word="think">think</span> <span word="of">of</span> <span word="the">the</span> <span word="empty">empty</span> <span word="space">space</span> <span word="between">between</span> <span word="the">the</span> <span word="stars">stars</span> <span word="as">as</span> <span word="being">being</span>, <span word="well">well</span>, <span word="empty">empty</span>.</p><p> 大多数人们认为星星之间就是空无一物，但事实并非如此。</p><p> <span word="But">But</span> <span word="it">it</span> <span word="is">is</span> <span word="not">not</span>. <span word="It">It</span> <span word="is">is</span> <span word="actually">actually</span> <span word="filled">filled</span> <span word="with">with</span> <span word="gas">gas</span>.</p><p> 实际上有气体弥散其中。</p><p> <span word="Admittedly">Admittedly</span>, <span word="at">at</span> <span word="an">an</span> <span word="average">average</span> <span word="density">density</span> <span word="of">of</span> 100-1,000 <span word="molecules">molecules</span> <span word="per">per</span> <span word="cubic">cubic</span> <span word="centimetre">centimetre</span>, <span word="it">it</span> <span word="is">is</span> <span word="apretty">apretty</span> <span word="thin">thin</span> <span word="gas">gas</span>.</p><p> 诚然，分子平均密度102-103/<span word="cm">cm</span>3的气体非常稀薄。</p><p> <span word="But">But</span> <span word="space">space</span> <span word="is">is</span> <span word="big">big</span>, <span word="so">so</span> <span word="altogether">altogether</span> <span word="there">there</span> <span word="is">is</span> <span word="quite">quite</span> <span word="a">a</span> <span word="lot">lot</span> <span word="of">of</span> <span word="it">it</span>.</p><p> 不过由于空间很广阔，气体分子总体数量是可观的。</p><p> <span word="Most">Most</span> <span word="of">of</span> <span word="it">it</span>, <span word="about">about</span> 92%, <span word="is">is</span> <span word="hydrogen">hydrogen</span>.</p><p> 大部分的气体是氢，另外8%是惰性气体氦。</p><p> <span word="A">A</span> <span word="further">further</span> 8% <span word="is">is</span> <span word="helium">helium</span>, <span word="which">which</span> <span word="is">is</span> <span word="chemically">chemically</span> <span word="inert">inert</span>.</p><p> 还有一小部分由氧、碳、氮等其他元素构成的分子。</p><p> <span word="But">But</span> <span word="a">a</span> <span word="tiny">tiny</span> <span word="fractionless">fractionless</span> <span word="than">than</span> <span word="one">one</span>-<span word="tenth">tenth</span> <span word="of">of</span> <span word="a">a</span> <span word="percentconsists">percentconsists</span> <span word="of">of</span> <span word="molecules">molecules</span> <span word="with">with</span> <span word="otherelements">otherelements</span>, <span word="such">such</span> <span word="as">as</span> <span word="oxygen">oxygen</span>, <span word="carbon">carbon</span> <span word="and">and</span> <span word="nitrogen">nitrogen</span>, <span word="in">in</span> <span word="them">them</span>. <span word="Though">Though</span> <span word="these">these</span> <span word="other">other</span> <span word="elements">elements</span> <span word="are">are</span> <span word="amere">amere</span> <span word="soupon">soupon</span> <span word="of">of</span> <span word="the">the</span> <span word="interstellar">interstellar</span> <span word="soup">soup</span>, <span word="they">they</span> <span word="do">do</span> <span word="give">give</span> <span word="it">it</span> <span word="real">real</span> <span word="flavour">flavour</span>.</p>
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