Spiders top the global predator charts 研究称蜘蛛食量居全球捕食性动物之首
<p>媒体英语 <span word="Spiders">Spiders</span> <span word="top">top</span> <span word="the">the</span> <span word="global">global</span> <span word="predator">predator</span> <span word="charts">charts</span> 研究称蜘蛛食量居全球捕食性动物之首 </p><p><span word="Play">Play</span> <span word="audio">audio</span> <span word="file">file</span> 文字稿 据生物学家计算，全世界的蜘蛛每年捕食重达 4 至 8 亿公吨（ 4 至 8 千亿公斤）的昆虫。科学家们希望通过这项研究使人们更加重视蜘蛛的生态学意义。他们说，这种蛛形纲动物每年捕食的总重约是人类每年消耗的肉和鱼类食物的重量之和。请听 <span word="Victoria">Victoria</span> <span word="Gill">Gill</span> 的报道。</p><p><span word="The">The</span> <span word="Swiss">Swiss</span> <span word="scientist">scientist</span> <span word="who">who</span> <span word="led">led</span> <span word="this">this</span> <span word="study">study</span> <span word="was">was</span> <span word="inspired">inspired</span> <span word="by">by</span> <span word="a">a</span> 1958 <span word="book">book</span>, <span word="The">The</span> <span word="World">World</span> <span word="of">of</span> <span word="Spiders">Spiders</span>, <span word="in">in</span> <span word="which">which</span> <span word="a">a</span> <span word="British">British</span> <span word="arachnologist">arachnologist</span> <span word="speculated">speculated</span> <span word="that">that</span> <span word="the">the</span> <span word="weight">weight</span> <span word="of">of</span> <span word="insects">insects</span> <span word="killed">killed</span> <span word="every">every</span> <span word="year">year</span> <span word="by">by</span> <span word="the">the</span> <span word="British">British</span> <span word="spider">spider</span> <span word="population">population</span> <span word="would">would</span> <span word="exceed">exceed</span> <span word="the">the</span> <span word="combined">combined</span> <span word="weight">weight</span> <span word="of">of</span> <span word="the">the</span> <span word="British">British</span> <span word="human">human</span> <span word="population">population</span>.</p><p><span word="Since">Since</span> <span word="he">he</span> <span word="first">first</span> <span word="considered">considered</span> <span word="that">that</span>, <span word="Dr">Dr</span> <span word="Martin">Martin</span> <span word="Nyffeler">Nyffeler</span> <span word="has">has</span> <span word="spent">spent</span> <span word="hundreds">hundreds</span> <span word="of">of</span> <span word="hours">hours</span> <span word="recording">recording</span> <span word="spider">spider</span> <span word="behaviour">behaviour</span> <span word="in">in</span> <span word="the">the</span> <span word="field">field</span> <span word="and">and</span> <span word="gathering">gathering</span> <span word="spider">spider</span> <span word="ecology">ecology</span> <span word="studies">studies</span> <span word="published">published</span> <span word="around">around</span> <span word="the">the</span> <span word="world">world</span>. <span word="His">His</span> <span word="numbers">numbers</span> <span word="are">are</span> <span word="enough">enough</span> <span word="to">to</span> <span word="haunt">haunt</span> <span word="any">any</span> <span word="arachnophobe">arachnophobe</span>. <span word="The">The</span> <span word="researchers">researchers</span> <span word="say">say</span> <span word="the">the</span> <span word="entire">entire</span> <span word="population">population</span> <span word="of">of</span> <span word="the">the</span> <span word="world">world</span>’<span word="s">s</span> <span word="spiders">spiders</span>, <span word="weighing">weighing</span> 25 <span word="million">million</span> <span word="tonnes">tonnes</span>, <span word="hunts">hunts</span> <span word="and">and</span> <span word="eats">eats</span> <span word="between">between</span> 400 <span word="and">and</span> 800 <span word="million">million</span> <span word="tonnes">tonnes</span> <span word="of">of</span> <span word="insect">insect</span> <span word="prey">prey</span> <span word="annually">annually</span>.</p><p><span word="But">But</span> <span word="these">these</span> <span word="numbers">numbers</span> <span word="are">are</span> <span word="not">not</span> <span word="meant">meant</span> <span word="to">to</span> <span word="terrify">terrify</span> <span word="anyone">anyone</span>. <span word="The">The</span> <span word="scientists">scientists</span> <span word="hope">hope</span> <span word="their">their</span> <span word="study">study</span> <span word="will">will</span> <span word="raise">raise</span> <span word="awareness">awareness</span> <span word="of">of</span> <span word="the">the</span> <span word="importance">importance</span> <span word="of">of</span> <span word="spiders">spiders</span> <span word="in">in</span> <span word="the">the</span> <span word="global">global</span> <span word="food">food</span> <span word="web">web</span>. </p><p>词汇表 <span word="arachnologist">arachnologist</span> 蜘蛛学家</p><p><span word="speculated">speculated</span> 推测了，推断了</p><p><span word="the">the</span> <span word="field">field</span> （自然环境中的）实地，现场</p>
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