meili 发表于 2022-10-18 19:46:11

六级深度讲义—阅读理解Passage Ten 20101005

<p>  <span word="Passage">Passage</span> <span word="Eleven">Eleven</span></p><p>  <span word="Can">Can</span> <span word="electricity">electricity</span> <span word="cause">cause</span> <span word="cancer">cancer</span>? <span word="In">In</span> <span word="a">a</span> <span word="society">society</span> <span word="that">that</span> <span word="literally">literally</span> <span word="runs">runs</span> <span word="on">on</span> <span word="electric">electric</span> <span word="power">power</span>, <span word="the">the</span> <span word="very">very</span> <span word="idea">idea</span> <span word="seems">seems</span> <span word="preposterous">preposterous</span>. <span word="But">But</span> <span word="for">for</span> <span word="more">more</span> <span word="than">than</span> <span word="a">a</span> <span word="decade">decade</span>, <span word="a">a</span> <span word="growing">growing</span> <span word="band">band</span> <span word="of">of</span> <span word="scientists">scientists</span> <span word="and">and</span> <span word="journalists">journalists</span> <span word="has">has</span> <span word="pointed">pointed</span> <span word="to">to</span> <span word="studies">studies</span> <span word="that">that</span> <span word="seem">seem</span> <span word="to">to</span> <span word="link">link</span> <span word="exposure">exposure</span> <span word="to">to</span> <span word="electromagnetic">electromagnetic</span> <span word="fields">fields</span> <span word="with">with</span> <span word="increased">increased</span> <span word="risk">risk</span> <span word="of">of</span> <span word="leukemia">leukemia</span> <span word="and">and</span> <span word="other">other</span> <span word="malignancies">malignancies</span>. <span word="The">The</span> <span word="implications">implications</span> <span word="are">are</span> <span word="unsettling">unsettling</span>, <span word="to">to</span> <span word="say">say</span> <span word="the">the</span> <span word="least">least</span>, <span word="since">since</span> <span word="everyone">everyone</span> <span word="comes">comes</span> <span word="into">into</span> <span word="contact">contact</span> <span word="with">with</span> <span word="such">such</span> <span word="fields">fields</span>, <span word="which">which</span> <span word="are">are</span> <span word="generated">generated</span> <span word="by">by</span> <span word="everything">everything</span> <span word="electrical">electrical</span>, <span word="from">from</span> <span word="power">power</span> <span word="lines">lines</span> <span word="and">and</span> <span word="antennas">antennas</span> <span word="to">to</span> <span word="personal">personal</span> <span word="computers">computers</span> <span word="and">and</span> <span word="micro">micro</span>-<span word="wave">wave</span> <span word="ovens">ovens</span>. <span word="Because">Because</span> <span word="evidence">evidence</span> <span word="on">on</span> <span word="the">the</span> <span word="subject">subject</span> <span word="is">is</span> <span word="inconclusive">inconclusive</span> <span word="and">and</span> <span word="often">often</span> <span word="contradictory">contradictory</span>, <span word="it">it</span> <span word="has">has</span> <span word="been">been</span> <span word="hard">hard</span> <span word="to">to</span> <span word="decide">decide</span> <span word="whether">whether</span> <span word="concern">concern</span> <span word="about">about</span> <span word="the">the</span> <span word="health">health</span> <span word="effects">effects</span> <span word="of">of</span> <span word="electricity">electricity</span> <span word="is">is</span> <span word="legitimateor">legitimateor</span> <span word="the">the</span> <span word="worst">worst</span> <span word="kind">kind</span> <span word="of">of</span> <span word="paranoia">paranoia</span>.</p><p>  <span word="Now">Now</span> <span word="the">the</span> <span word="alarmists">alarmists</span> <span word="have">have</span> <span word="gained">gained</span> <span word="some">some</span> <span word="qualified">qualified</span> <span word="support">support</span> <span word="from">from</span> <span word="the">the</span> <span word="U">U</span>.<span word="S">S</span>. <span word="Environmental">Environmental</span> <span word="Protection">Protection</span> <span word="Agency">Agency</span>. <span word="In">In</span> <span word="the">the</span> <span word="executive">executive</span> <span word="summary">summary</span> <span word="of">of</span> <span word="a">a</span> <span word="new">new</span> <span word="scientific">scientific</span> <span word="review">review</span>, <span word="released">released</span> <span word="in">in</span> <span word="draft">draft</span> <span word="form">form</span> <span word="late">late</span> <span word="last">last</span> <span word="week">week</span>, <span word="the">the</span> <span word="EPA">EPA</span> <span word="has">has</span> <span word="put">put</span> <span word="forward">forward</span> <span word="what">what</span> <span word="amounts">amounts</span> <span word="to">to</span> <span word="the">the</span> <span word="most">most</span> <span word="serious">serious</span> <span word="government">government</span> <span word="warning">warning</span> <span word="to">to</span> <span word="date">date</span>. <span word="The">The</span> <span word="agency">agency</span> <span word="tentatively">tentatively</span> <span word="concludes">concludes</span> <span word="that">that</span> <span word="scientific">scientific</span> <span word="evidence">evidence</span> <span word="suggests">suggests</span> <span word="a">a</span> <span word="casual">casual</span> <span word="link">link</span> <span word="between">between</span> <span word="extremely">extremely</span> <span word="low">low</span>-<span word="frequency">frequency</span> <span word="electromagnetic">electromagnetic</span> <span word="fieldsthose">fieldsthose</span> <span word="having">having</span> <span word="very">very</span> <span word="longwave">longwave</span>-<span word="lengthsand">lengthsand</span> <span word="leukemia">leukemia</span>, <span word="lymphoma">lymphoma</span> <span word="and">and</span> <span word="brain">brain</span> <span word="cancer">cancer</span>, <span word="While">While</span> <span word="the">the</span> <span word="report">report</span> <span word="falls">falls</span> <span word="short">short</span> <span word="of">of</span> <span word="classifying">classifying</span> <span word="ELF">ELF</span> <span word="fields">fields</span> <span word="as">as</span> <span word="probable">probable</span> <span word="carcinogens">carcinogens</span>, <span word="it">it</span> <span word="does">does</span> <span word="identify">identify</span> <span word="the">the</span> <span word="common">common</span> 60-<span word="hertz">hertz</span> <span word="magnetic">magnetic</span> <span word="field">field</span> <span word="as">as</span> <span word="a">a</span> <span word="possible">possible</span>, <span word="but">but</span> <span word="not">not</span> <span word="proven">proven</span>, <span word="cause">cause</span> <span word="of">of</span> <span word="cancer">cancer</span> <span word="in">in</span> <span word="humans">humans</span>.</p>
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