2015考研英语阅读英核辐射与进化
<p> <span word="Radiation">Radiation</span> <span word="and">and</span> <span word="evolution">evolution</span></p><p> 核辐射与进化</p><p> <span word="Surviving">Surviving</span> <span word="fallout">fallout</span>.</p><p> 辐射尘中 幸免于难。</p><p> <span word="Birds">Birds</span> <span word="can">can</span> <span word="evolve">evolve</span> <span word="to">to</span> <span word="cope">cope</span> <span word="with">with</span> <span word="the">the</span> <span word="lingering">lingering</span> <span word="effects">effects</span> <span word="of">of</span> <span word="nuclear">nuclear</span> <span word="incidents">incidents</span>.</p><p> 鸟类能够通过进化应对核事故的残余影响。</p><p> <span word="THE">THE</span> <span word="disaster">disaster</span> <span word="last">last</span> <span word="year">year</span> <span word="at">at</span> <span word="the">the</span> <span word="Fukushima">Fukushima</span> <span word="Dai">Dai</span>-<span word="ichi">ichi</span> <span word="nuclear">nuclear</span> <span word="power">power</span> <span word="plant">plant</span>, <span word="caused">caused</span> <span word="by">by</span> <span word="anearthquake">anearthquake</span> <span word="and">and</span> <span word="tsunami">tsunami</span>, <span word="scored">scored</span> <span word="seven">seven</span> <span word="on">on</span> <span word="the">the</span> <span word="International">International</span> <span word="Nuclear">Nuclear</span> <span word="and">and</span> <span word="Radiological">Radiological</span> <span word="EventScale">EventScale</span> . <span word="No">No</span> <span word="worse">worse</span> <span word="rating">rating</span> <span word="exists">exists</span>. <span word="Radiation">Radiation</span> <span word="is">is</span> <span word="harmful">harmful</span> <span word="to">to</span> <span word="living">living</span> <span word="things">things</span>, <span word="yet">yet</span> <span word="the">the</span> <span word="long">long</span>-<span word="termeffects">termeffects</span> <span word="of">of</span> <span word="persistently">persistently</span> <span word="high">high</span> <span word="levels">levels</span> <span word="of">of</span> <span word="background">background</span> <span word="radiation">radiation</span> <span word="on">on</span> <span word="ecosystems">ecosystems</span> <span word="are">are</span> <span word="poorlyunderstood">poorlyunderstood</span>.<span word="With">With</span> <span word="this">this</span> <span word="in">in</span> <span word="mind">mind</span>, <span word="a">a</span> <span word="team">team</span> <span word="led">led</span> <span word="by">by</span> <span word="Timothy">Timothy</span> <span word="Mousseau">Mousseau</span> <span word="of">of</span> <span word="the">the</span> <span word="University">University</span> <span word="of">of</span> <span word="SouthCarolina">SouthCarolina</span> <span word="and">and</span> <span word="Anders">Anders</span> <span word="Moller">Moller</span> <span word="of">of</span> <span word="the">the</span> <span word="University">University</span> <span word="of">of</span> <span word="Paris">Paris</span>-<span word="Sud">Sud</span> <span word="set">set</span> <span word="out">out</span> <span word="to">to</span> <span word="compare">compare</span> <span word="bird">bird</span> <span word="speciesdwelling">speciesdwelling</span> <span word="near">near</span> <span word="the">the</span> <span word="Fukushima">Fukushima</span> <span word="plant">plant</span> <span word="with">with</span> <span word="those">those</span> <span word="living">living</span> <span word="at">at</span> <span word="the">the</span> <span word="site">site</span> <span word="of">of</span> <span word="another">another</span> <span word="nuclear">nuclear</span> <span word="incidentthat">incidentthat</span> <span word="scored">scored</span> <span word="a">a</span> <span word="seven">seven</span> <span word="on">on</span> <span word="the">the</span> <span word="INES">INES</span>: <span word="the">the</span> <span word="Ukrainian">Ukrainian</span> <span word="town">town</span> <span word="of">of</span> <span word="Chernobyl">Chernobyl</span>, <span word="where">where</span> <span word="disaster">disaster</span> <span word="struck">struck</span> <span word="in">in</span>1986. <span word="Remarkably">Remarkably</span>, <span word="they">they</span> <span word="found">found</span> <span word="that">that</span> <span word="some">some</span> <span word="species">species</span> <span word="seem">seem</span> <span word="to">to</span> <span word="develop">develop</span> <span word="a">a</span> <span word="tolerance">tolerance</span> <span word="forradioactivity">forradioactivity</span> <span word="over">over</span> <span word="time">time</span>.</p><p> 去年，地震和海啸引发了福岛第一原子能发电站核泄漏事故，在国际核与辐射事件等级标准中被评为第七级;没有比这情况还糟的分级了。核辐射对生物有害，而长时间高水平的本底辐射对生态系统有何影响，人们还知之甚少。为了研究这个问题，南卡罗莱纳大学的<span word="Timothy">Timothy</span> <span word="Mousseau">Mousseau</span>和巴黎第十一大学的<span word="Anders">Anders</span> <span word="Moller">Moller</span>率团队着手比较在两个<span word="INES">INES</span>七级事故事发地附近栖息的鸟类种群。结果出人意料。他们发现随着时间迁移，似乎有些鸟类发展出了对核辐射的耐受力。</p>
页:
[1]