职称英语综合类考试阅读理解原文练习(四)
<p> <span word="Find">Find</span> <span word="Yourself">Yourself</span> <span word="Packing">Packing</span> <span word="It">It</span> <span word="On">On</span>?<span word="Blame">Blame</span> <span word="Friends">Friends</span></p><p> <span word="Obesity">Obesity</span> <span word="can">can</span> <span word="spread">spread</span> <span word="from">from</span> <span word="person">person</span> <span word="to">to</span> <span word="person">person</span>，<span word="much">much</span> <span word="like">like</span> <span word="a">a</span> <span word="virus">virus</span>，<span word="researchers">researchers</span> <span word="are">are</span> <span word="reporting">reporting</span> <span word="today">today</span>.<span word="When">When</span> <span word="one">one</span> <span word="person">person</span> <span word="gains">gains</span> <span word="weight">weight</span>，<span word="close">close</span> <span word="friends">friends</span> <span word="tend">tend</span> <span word="to">to</span> <span word="gain">gain</span> <span word="weight">weight</span>，<span word="too">too</span>.</p><p> <span word="Their">Their</span> <span word="study">study</span>，<span word="published">published</span> <span word="in">in</span> <span word="The">The</span> <span word="New">New</span> <span word="England">England</span> <span word="Journal">Journal</span> <span word="of">of</span> <span word="Medicine">Medicine</span>，<span word="involved">involved</span> <span word="a">a</span> <span word="detailed">detailed</span> <span word="analysis">analysis</span> <span word="of">of</span> <span word="a">a</span> <span word="large">large</span> <span word="social">social</span> <span word="network">network</span> <span word="of">of</span> 12，067 <span word="people">people</span> <span word="who">who</span> <span word="had">had</span> <span word="been">been</span> <span word="closely">closely</span> <span word="followed">followed</span> <span word="for">for</span> 32 <span word="years">years</span>，<span word="from">from</span> 1971 <span word="to">to</span> 2003.</p><p> <span word="The">The</span> <span word="investigators">investigators</span> <span word="knew">knew</span> <span word="who">who</span> <span word="was">was</span> <span word="friends">friends</span> <span word="with">with</span> <span word="whom">whom</span> <span word="as">as</span> <span word="well">well</span> <span word="as">as</span> <span word="who">who</span> <span word="was">was</span> <span word="a">a</span> <span word="spouse">spouse</span> <span word="or">or</span> <span word="sibling">sibling</span> <span word="or">or</span> <span word="neighbor">neighbor</span>，<span word="and">and</span> <span word="they">they</span> <span word="knew">knew</span> <span word="how">how</span> <span word="much">much</span> <span word="each">each</span> <span word="person">person</span> <span word="weighed">weighed</span> <span word="at">at</span> <span word="various">various</span> <span word="times">times</span> <span word="over">over</span> <span word="three">three</span> <span word="decades">decades</span>.1 <span word="That">That</span> <span word="let">let</span> <span word="them">them</span> <span word="reconstruct">reconstruct</span>2 <span word="what">what</span> <span word="happened">happened</span> <span word="over">over</span> <span word="the">the</span> <span word="years">years</span> <span word="as">as</span> <span word="individuals">individuals</span> <span word="became">became</span> <span word="obese">obese</span>.<span word="Did">Did</span> <span word="their">their</span> <span word="friends">friends</span> <span word="also">also</span> <span word="become">become</span> <span word="obese">obese</span>?<span word="Did">Did</span> <span word="family">family</span> <span word="members">members</span>?<span word="Or">Or</span> <span word="neighbors">neighbors</span>?</p><p> <span word="The">The</span> <span word="answer">answer</span>，<span word="the">the</span> <span word="researchers">researchers</span> <span word="report">report</span>，<span word="was">was</span> <span word="that">that</span> <span word="people">people</span> <span word="were">were</span> <span word="most">most</span> <span word="likely">likely</span> <span word="to">to</span> <span word="become">become</span> <span word="obese">obese</span> <span word="when">when</span> <span word="a">a</span> <span word="friend">friend</span> <span word="became">became</span> <span word="obese">obese</span>.<span word="That">That</span> <span word="increased">increased</span> <span word="a">a</span> <span word="persons">persons</span> <span word="chances">chances</span> <span word="of">of</span> <span word="becoming">becoming</span> <span word="obese">obese</span> <span word="by">by</span> 57 <span word="percent">percent</span>. 3 <span word="There">There</span> <span word="was">was</span> <span word="no">no</span> <span word="effect">effect</span> <span word="when">when</span> <span word="a">a</span> <span word="neighbor">neighbor</span> <span word="gained">gained</span> <span word="or">or</span> <span word="lost">lost</span> <span word="weight">weight</span>4，<span word="however">however</span>，<span word="and">and</span> <span word="family">family</span> <span word="members">members</span> <span word="had">had</span> <span word="less">less</span> <span word="influence">influence</span> <span word="than">than</span> <span word="friends">friends</span>.</p><p> <span word="It">It</span> <span word="did">did</span> <span word="not">not</span> <span word="even">even</span> <span word="matter">matter</span> <span word="if">if</span> <span word="the">the</span> <span word="friend">friend</span> <span word="was">was</span> <span word="hundreds">hundreds</span> <span word="of">of</span> <span word="miles">miles</span> <span word="away">away</span>，<span word="the">the</span> <span word="influence">influence</span> <span word="remained">remained</span>. 5<span word="And">And</span> <span word="the">the</span> <span word="greatest">greatest</span> <span word="influence">influence</span> <span word="of">of</span> <span word="all">all</span> <span word="was">was</span> <span word="between">between</span> <span word="close">close</span> <span word="mutual">mutual</span> <span word="friends">friends</span>.<span word="There">There</span>，<span word="if">if</span> <span word="one">one</span> <span word="became">became</span> <span word="obese">obese</span>，<span word="the">the</span> <span word="other">other</span> <span word="had">had</span> <span word="a">a</span> 171 <span word="percent">percent</span> <span word="increased">increased</span> <span word="chance">chance</span> <span word="of">of</span> <span word="becoming">becoming</span> <span word="obese">obese</span>，<span word="too">too</span>.</p><p> <span word="The">The</span> <span word="same">same</span> <span word="effect">effect</span> <span word="seemed">seemed</span> <span word="tO">tO</span> <span word="occur">occur</span> <span word="for">for</span> <span word="weight">weight</span> <span word="loss">loss</span>，<span word="the">the</span> <span word="investigators">investigators</span> <span word="say">say</span>.<span word="But">But</span> <span word="since">since</span> <span word="most">most</span> <span word="people">people</span> <span word="were">were</span> <span word="gaining">gaining</span>，<span word="not">not</span> <span word="losing">losing</span>，<span word="over">over</span> <span word="the">the</span> 32 <span word="years">years</span>，<span word="the">the</span> <span word="result">result</span> <span word="was">was</span>，<span word="on">on</span> <span word="average">average</span>，<span word="that">that</span> <span word="people">people</span> <span word="grew">grew</span> <span word="fatter">fatter</span>.</p>
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