英语六级阅读:词汇短语讲解
<p> <span word="There">There</span> <span word="are">are</span> <span word="many">many</span> <span word="known">known</span> <span word="risk">risk</span> <span word="factors">factors</span> <span word="associated">associated</span> <span word="with">with</span> <span word="suicide">suicide</span>: <span word="those">those</span> <span word="who">who</span> <span word="take">take</span> <span word="their">their</span> <span word="own">own</span> <span word="lives">lives</span> <span word="are">are</span> <span word="statistically">statistically</span> <span word="more">more</span> <span word="likely">likely</span> <span word="to">to</span> <span word="be">be</span> <span word="white">white</span>, <span word="male">male</span>, <span word="and">and</span>/<span word="or">or</span> <span word="low">low</span>-<span word="income">income</span>. <span word="Surveys">Surveys</span> <span word="show">show</span> <span word="that">that</span> <span word="they">they</span> <span word="are">are</span> <span word="also">also</span> <span word="more">more</span> <span word="likely">likely</span> <span word="to">to</span> <span word="have">have</span> <span word="histories">histories</span> <span word="of">of</span> <span word="depression">depression</span>, <span word="own">own</span> <span word="fire">fire</span> <span word="arms">arms</span> <span word="and">and</span> <span word="feel">feel</span> <span word="isolated">isolated</span>. <span word="Many">Many</span> <span word="are">are</span> <span word="divorced">divorced</span> <span word="or">or</span> <span word="have">have</span> <span word="substance">substance</span> <span word="abuse">abuse</span> <span word="problems">problems</span>. <span word="But">But</span> <span word="a">a</span> <span word="team">team</span> <span word="of">of</span> <span word="researchers">researchers</span> <span word="found">found</span> <span word="another">another</span> <span word="risk">risk</span> <span word="factor">factor</span> <span word="that">that</span> <span word="is">is</span> <span word="less">less</span> <span word="intuitive">intuitive</span>, <span word="even">even</span> <span word="though">though</span> <span word="it">it</span> <span word="may">may</span> <span word="be">be</span> <span word="just">just</span> <span word="as">as</span> <span word="valid">valid</span>: <span word="living">living</span> <span word="at">at</span> <span word="a">a</span> <span word="high">high</span> <span word="altitude">altitude</span>.</p><p> <span word="The">The</span> <span word="team">team</span>, <span word="lead">lead</span> <span word="by">by</span> <span word="Dr">Dr</span>. <span word="Barry">Barry</span> <span word="Brenner">Brenner</span> <span word="from">from</span> <span word="the">the</span> <span word="University">University</span> <span word="Hospitals">Hospitals</span> <span word="Case">Case</span> <span word="Medical">Medical</span> <span word="Center">Center</span> <span word="in">in</span> <span word="Cleveland">Cleveland</span> <span word="Ohio">Ohio</span>, <span word="analyzed">analyzed</span> 19 <span word="years">years</span> <span word="worth">worth</span> <span word="of">of</span> <span word="cause">cause</span>-<span word="of">of</span>-<span word="death">death</span> <span word="data">data</span> <span word="from">from</span> <span word="all">all</span> 2,584 <span word="U">U</span>.<span word="S">S</span>. <span word="counties">counties</span> . <span word="In">In</span> <span word="their">their</span> <span word="study">study</span>, <span word="published">published</span> <span word="in">in</span> <span word="High">High</span> <span word="Altitude">Altitude</span> <span word="Medicine">Medicine</span> <span word="Biology">Biology</span>, <span word="they">they</span> <span word="compared">compared</span> <span word="the">the</span> 50 <span word="counties">counties</span> <span word="with">with</span> <span word="the">the</span> <span word="highest">highest</span> <span word="suicide">suicide</span> <span word="rate">rate</span> <span word="to">to</span> <span word="the">the</span> 50 <span word="counties">counties</span> <span word="with">with</span> <span word="the">the</span> <span word="lowest">lowest</span>, <span word="and">and</span> <span word="found">found</span> <span word="that">that</span> <span word="county">county</span> <span word="altitude">altitude</span> <span word="was">was</span> <span word="on">on</span> <span word="average">average</span> <span word="almost">almost</span> <span word="eight">eight</span> <span word="times">times</span> <span word="higher">higher</span> <span word="in">in</span> <span word="the">the</span> <span word="areas">areas</span> <span word="with">with</span> <span word="high">high</span> <span word="suicide">suicide</span> <span word="rates">rates</span>.</p><p> <span word="Even">Even</span> <span word="when">when</span> <span word="the">the</span> <span word="researchers">researchers</span> <span word="controlled">controlled</span> <span word="for">for</span> <span word="five">five</span> <span word="other">other</span> <span word="suicide">suicide</span>-<span word="related">related</span> <span word="factors">factors</span><span word="two">two</span> <span word="measures">measures</span> <span word="of">of</span> <span word="income">income</span>,<span word="race">race</span>, <span word="age">age</span> <span word="and">and</span> <span word="population">population</span> <span word="density">density</span> <span word="of">of</span> <span word="the">the</span> <span word="county">county</span><span word="the">the</span> <span word="correlation">correlation</span> <span word="was">was</span> <span word="still">still</span> <span word="strong">strong</span>. <span word="Wrote">Wrote</span> <span word="the">the</span> <span word="scientists">scientists</span>:</p><p> <span word="Prior">Prior</span> <span word="reports">reports</span> <span word="of">of</span> <span word="increased">increased</span> <span word="suicides">suicides</span> <span word="in">in</span> <span word="the">the</span> <span word="U">U</span>.<span word="S">S</span>. <span word="Mountain">Mountain</span> <span word="Region">Region</span> <span word="have">have</span> <span word="prompted">prompted</span> <span word="speculation">speculation</span> <span word="that">that</span> <span word="the">the</span> <span word="excess">excess</span> <span word="is">is</span> <span word="owing">owing</span> <span word="to">to</span> <span word="greater">greater</span> <span word="access">access</span> <span word="to">to</span> <span word="rearms">rearms</span>, <span word="increased">increased</span> <span word="isolation">isolation</span>, <span word="or">or</span> <span word="reduced">reduced</span> <span word="income">income</span>. <span word="Even">Even</span> <span word="after">after</span> <span word="controlling">controlling</span> <span word="for">for</span> <span word="these">these</span> <span word="variables">variables</span> <span word="in">in</span> <span word="our">our</span> <span word="analysis">analysis</span>, <span word="the">the</span> <span word="positive">positive</span> <span word="correlation">correlation</span> <span word="between">between</span> <span word="altitude">altitude</span> <span word="and">and</span> <span word="suicide">suicide</span> <span word="still">still</span> <span word="exists">exists</span>, <span word="which">which</span> <span word="suggests">suggests</span> <span word="that">that</span> <span word="the">the</span> <span word="increased">increased</span> <span word="suicide">suicide</span> <span word="rate">rate</span> <span word="in">in</span> <span word="the">the</span> <span word="regions">regions</span> <span word="with">with</span> <span word="greatest">greatest</span> <span word="altitude">altitude</span>, <span word="such">such</span> <span word="as">as</span> <span word="the">the</span> <span word="Mountain">Mountain</span> <span word="Region">Region</span>, <span word="may">may</span> <span word="be">be</span> <span word="owing">owing</span> <span word="to">to</span>, <span word="at">at</span> <span word="least">least</span> <span word="in">in</span> <span word="part">part</span>, <span word="its">its</span> <span word="altitude">altitude</span> <span word="per">per</span> <span word="se">se</span>.</p>
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