2015考研英语阅读古生物学
<p> <span word="Palaeontology">Palaeontology</span> <span word="Do">Do</span> <span word="the">the</span> <span word="locomotion">locomotion</span></p><p> 古生物学 活动活动</p><p> <span word="The">The</span> <span word="earliest">earliest</span> <span word="animal">animal</span> <span word="tracks">tracks</span> <span word="yet">yet</span> <span word="found">found</span> <span word="have">have</span> <span word="been">been</span> <span word="unearthed">unearthed</span> <span word="in">in</span> <span word="Canada">Canada</span></p><p> 在加拿大出土了迄今为止发现的最早动物足迹</p><p> <span word="ONE">ONE</span> <span word="of">of</span> <span word="the">the</span> <span word="greatest">greatest</span> <span word="mysteries">mysteries</span> <span word="of">of</span> <span word="the">the</span> <span word="history">history</span> <span word="of">of</span> <span word="life">life</span> <span word="is">is</span> <span word="the">the</span> <span word="Cambrian">Cambrian</span> <span word="explosion">explosion</span>.</p><p> 寒武纪的大爆炸是生命史中最大的谜团之一。</p><p> <span word="Prior">Prior</span> <span word="to">to</span> 560<span word="m">m</span> <span word="years">years</span> <span word="ago">ago</span>, <span word="animal">animal</span> <span word="fossils">fossils</span> <span word="are">are</span> <span word="rare">rare</span>.</p><p> 5.6亿年以前的动物化石寥寥无几。</p><p> <span word="Then">Then</span>, <span word="in">in</span> <span word="a">a</span> <span word="geological">geological</span> <span word="eyeblink">eyeblink</span>, <span word="they">they</span> <span word="become">become</span> <span word="common">common</span>.</p><p> 然而，只过了地质史上一瞬间的功夫，它们便多得不足为奇了。</p><p> <span word="Shelly">Shelly</span> <span word="creatures">creatures</span> <span word="such">such</span> <span word="as">as</span> <span word="trilobites">trilobites</span> <span word="and">and</span> <span word="brachiopods">brachiopods</span>, <span word="of">of</span> <span word="whose">whose</span> <span word="ancestors">ancestors</span> <span word="there">there</span> <span word="is">is</span> <span word="little">little</span> <span word="sign">sign</span> <span word="inthe">inthe</span> <span word="rocks">rocks</span>, <span word="are">are</span> <span word="suddenly">suddenly</span> <span word="everywhere">everywhere</span>.</p><p> 像三叶虫、腕足动物此般壳类动物的祖先没有在岩层中留下什么痕迹，但它们的遗迹却突然间比比皆是。</p><p> <span word="Biologists">Biologists</span> <span word="would">would</span> <span word="dearly">dearly</span> <span word="love">love</span> <span word="to">to</span> <span word="know">know</span> <span word="what">what</span> <span word="happened">happened</span>.</p><p> 生物学家们迫不及待地想知道当时到底发生了什么。</p><p> <span word="Recent">Recent</span> <span word="discoveries">discoveries</span> <span word="at">at</span> <span word="the">the</span> <span word="delightfully">delightfully</span> <span word="named">named</span> <span word="Mistaken">Mistaken</span> <span word="Point">Point</span>, <span word="in">in</span> <span word="Newfoundland">Newfoundland</span>, <span word="serve">serve</span> <span word="to">to</span> <span word="lift">lift</span> <span word="theveil">theveil</span> <span word="slightly">slightly</span>.</p><p> 纽芬兰岛上有个地方名字很有趣，叫错误点，正是最近在这里的一些发现轻轻掀起了这个神秘面纱的一角。</p>
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