英语六级(CET6)阅读理解预测试题及答案(3)
<p> <span word="Ask">Ask</span> <span word="anyone">anyone</span> <span word="why">why</span> <span word="there">there</span> <span word="is">is</span> <span word="an">an</span> <span word="obesity">obesity</span> <span word="epidemic">epidemic</span> <span word="and">and</span> <span word="they">they</span> <span word="will">will</span> <span word="tell">tell</span> <span word="you">you</span> <span word="that">that</span> <span word="its">its</span> <span word="al">al</span> <span word="down">down</span> <span word="to">to</span> <span word="eating">eating</span> <span word="too">too</span> <span word="much">much</span> <span word="and">and</span> <span word="burning">burning</span> <span word="too">too</span> <span word="few">few</span> <span word="calories">calories</span>. <span word="That">That</span> <span word="explanation">explanation</span> <span word="appeals">appeals</span> <span word="to">to</span> <span word="common">common</span> <span word="sense">sense</span> <span word="and">and</span> <span word="has">has</span> <span word="dominated">dominated</span> <span word="efforts">efforts</span> <span word="to">to</span> <span word="get">get</span> <span word="to">to</span> <span word="the">the</span> <span word="root">root</span> <span word="of">of</span> <span word="the">the</span> <span word="obesity">obesity</span> <span word="epidemic">epidemic</span> <span word="and">and</span> <span word="reverse">reverse</span> <span word="it">it</span>/ <span word="yet">yet</span> <span word="obesity">obesity</span> <span word="researchers">researchers</span> <span word="are">are</span> <span word="increasingly">increasingly</span> <span word="dissatisfied">dissatisfied</span> <span word="with">with</span> <span word="it">it</span>. <span word="Many">Many</span> <span word="now">now</span> <span word="believe">believe</span> <span word="that">that</span> <span word="something">something</span> <span word="else">else</span> <span word="must">must</span> <span word="have">have</span> <span word="changed">changed</span> <span word="in">in</span> <span word="our">our</span> <span word="environment">environment</span> <span word="to">to</span> <span word="precipitate">precipitate</span>（促成） <span word="such">such</span> <span word="dramatic">dramatic</span> <span word="rises">rises</span> <span word="in">in</span> <span word="obesity">obesity</span> <span word="over">over</span> <span word="the">the</span> <span word="past">past</span> 40 <span word="years">years</span> <span word="or">or</span> <span word="so">so</span>. <span word="Nobody">Nobody</span> <span word="is">is</span> <span word="saying">saying</span> <span word="that">that</span> <span word="the">the</span> <span word="big">big</span> <span word="two">two</span><span word="reduced">reduced</span> <span word="physical">physical</span> <span word="activity">activity</span> <span word="and">and</span> <span word="increased">increased</span> <span word="availability">availability</span> <span word="of">of</span> <span word="food">food</span><span word="are">are</span> <span word="not">not</span> <span word="important">important</span> <span word="contributors">contributors</span> <span word="to">to</span> <span word="the">the</span> <span word="epidemic">epidemic</span>, <span word="but">but</span> <span word="they">they</span> <span word="cannot">cannot</span> <span word="explain">explain</span> <span word="it">it</span> <span word="all">all</span>.</p><p> <span word="Earlier">Earlier</span> <span word="this">this</span> <span word="year">year</span> <span word="a">a</span> <span word="review">review</span> <span word="paper">paper</span> <span word="by">by</span> 20 <span word="obesity">obesity</span> <span word="experts">experts</span> <span word="set">set</span> <span word="out">out</span> <span word="the">the</span> 7 <span word="most">most</span> <span word="plausible">plausible</span> <span word="alternative">alternative</span> <span word="explanations">explanations</span> <span word="for">for</span> <span word="the">the</span> <span word="epidemic">epidemic</span>. <span word="Here">Here</span> <span word="they">they</span> <span word="are">are</span>.</p><p> <span word="Not">Not</span> <span word="enough">enough</span> <span word="sleep">sleep</span></p><p> <span word="It">It</span> <span word="is">is</span> <span word="widely">widely</span> <span word="believed">believed</span> <span word="that">that</span> <span word="sleep">sleep</span> <span word="is">is</span> <span word="for">for</span> <span word="the">the</span> <span word="brain">brain</span>, <span word="not">not</span> <span word="the">the</span> <span word="body">body</span>. <span word="Could">Could</span> <span word="a">a</span> <span word="shortage">shortage</span> <span word="of">of</span> <span word="shut">shut</span>-<span word="eye">eye</span> <span word="also">also</span> <span word="be">be</span> <span word="helping">helping</span> <span word="to">to</span> <span word="make">make</span> <span word="us">us</span> <span word="fat">fat</span>?</p><p> <span word="Several">Several</span> <span word="large">large</span>-<span word="scale">scale</span> <span word="studies">studies</span> <span word="suggest">suggest</span> <span word="there">there</span> <span word="may">may</span> <span word="be">be</span> <span word="a">a</span> <span word="link">link</span>. <span word="People">People</span> <span word="who">who</span> <span word="sleep">sleep</span> <span word="less">less</span> <span word="than">than</span> 7 <span word="hours">hours</span> <span word="a">a</span> <span word="night">night</span> <span word="tend">tend</span> <span word="to">to</span> <span word="have">have</span> <span word="a">a</span> <span word="higher">higher</span> <span word="body">body</span> <span word="mass">mass</span> <span word="index">index</span> <span word="than">than</span> <span word="people">people</span> <span word="who">who</span> <span word="sleep">sleep</span> <span word="more">more</span>, <span word="according">according</span> <span word="to">to</span> <span word="data">data</span> <span word="gathered">gathered</span> <span word="by">by</span> <span word="the">the</span> <span word="US">US</span> <span word="National">National</span> <span word="Health">Health</span> <span word="and">and</span> <span word="Nutrition">Nutrition</span> <span word="Examination">Examination</span> <span word="Survey">Survey</span>. <span word="Similarly">Similarly</span>, <span word="the">the</span> <span word="US">US</span> <span word="Nurses">Nurses</span> <span word="Health">Health</span> <span word="Study">Study</span>, <span word="which">which</span> <span word="tracked">tracked</span> 68,000 <span word="women">women</span> <span word="for">for</span> 16 <span word="years">years</span>, <span word="found">found</span> <span word="that">that</span> <span word="those">those</span> <span word="who">who</span> <span word="slept">slept</span> <span word="an">an</span> <span word="average">average</span> <span word="of">of</span> 5 <span word="hours">hours</span> <span word="a">a</span> <span word="night">night</span> <span word="gained">gained</span> <span word="more">more</span> <span word="weight">weight</span> <span word="during">during</span> <span word="the">the</span> <span word="study">study</span> <span word="period">period</span> <span word="than">than</span> <span word="women">women</span> <span word="who">who</span> <span word="slept">slept</span> 6 <span word="hours">hours</span>, <span word="who">who</span> <span word="in">in</span> <span word="turn">turn</span> <span word="gained">gained</span> <span word="more">more</span> <span word="than">than</span> <span word="whose">whose</span> <span word="who">who</span> <span word="slept">slept</span> 7.</p>
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