2013年12月英语六级改革的模拟练习长篇阅读4
<p> 点击查看：</p><p> <span word="Definitions">Definitions</span> <span word="of">of</span> <span word="Obesity">Obesity</span></p><p> <span word="A">A</span>: <span word="How">How</span> <span word="does">does</span> <span word="one">one</span> <span word="define">define</span> <span word="when">when</span> <span word="a">a</span> <span word="person">person</span> <span word="is">is</span> <span word="considered">considered</span> <span word="to">to</span> <span word="be">be</span> <span word="obese">obese</span> <span word="and">and</span> <span word="not">not</span> <span word="just">just</span> <span word="somewhat">somewhat</span> <span word="overweight">overweight</span>? <span word="Height">Height</span>-<span word="weight">weight</span> <span word="tables">tables</span> <span word="give">give</span> <span word="an">an</span> <span word="approximate">approximate</span> <span word="guideline">guideline</span> <span word="as">as</span> <span word="to">to</span> <span word="whether">whether</span> <span word="one">one</span> <span word="is">is</span> <span word="simply">simply</span> <span word="overweight">overweight</span> <span word="or">or</span> <span word="has">has</span> <span word="passed">passed</span> <span word="into">into</span> <span word="the">the</span> <span word="obese">obese</span> <span word="stage">stage</span>.</p><p> <span word="B">B</span>: <span word="The">The</span> <span word="World">World</span> <span word="Health">Health</span> <span word="Organization">Organization</span> <span word="recommends">recommends</span> <span word="using">using</span> <span word="a">a</span> <span word="formula">formula</span> <span word="that">that</span> <span word="takes">takes</span> <span word="into">into</span> <span word="account">account</span> <span word="a">a</span> <span word="persons">persons</span> <span word="height">height</span> <span word="and">and</span> <span word="weight">weight</span>. <span word="The">The</span> <span word="Body">Body</span> <span word="Mass">Mass</span> <span word="Index">Index</span> <span word="is">is</span> <span word="calculated">calculated</span> <span word="by">by</span> <span word="dividing">dividing</span> <span word="the">the</span> <span word="persons">persons</span> <span word="weight">weight</span> <span word="in">in</span> <span word="kilograms">kilograms</span> <span word="by">by</span> <span word="the">the</span> <span word="square">square</span> <span word="of">of</span> <span word="their">their</span> <span word="height">height</span> <span word="in">in</span> <span word="meters">meters</span>, <span word="and">and</span> <span word="is">is</span> <span word="thus">thus</span> <span word="given">given</span> <span word="in">in</span> <span word="units">units</span> <span word="of">of</span> <span word="kg">kg</span>/<span word="m">m</span>2. <span word="A">A</span> <span word="BMI">BMI</span> <span word="of">of</span> 18.5-24.9 <span word="is">is</span> <span word="considered">considered</span> <span word="to">to</span> <span word="be">be</span> <span word="the">the</span> <span word="healthiest">healthiest</span>. <span word="A">A</span> <span word="BMI">BMI</span> <span word="of">of</span> <span word="between">between</span> 25 <span word="and">and</span> 29.9 <span word="is">is</span> <span word="considered">considered</span> <span word="to">to</span> <span word="be">be</span> <span word="overweight">overweight</span>, <span word="while">while</span> <span word="a">a</span> <span word="BMI">BMI</span> <span word="of">of</span> <span word="over">over</span> 30 <span word="is">is</span> <span word="considered">considered</span> <span word="to">to</span> <span word="be">be</span> <span word="obese">obese</span>.</p><p> <span word="C">C</span>: <span word="However">However</span>, <span word="it">it</span> <span word="is">is</span> <span word="recognized">recognized</span> <span word="that">that</span> <span word="this">this</span> <span word="definition">definition</span> <span word="is">is</span> <span word="limited">limited</span> <span word="as">as</span> <span word="it">it</span> <span word="does">does</span> <span word="not">not</span> <span word="take">take</span> <span word="into">into</span> <span word="account">account</span> <span word="such">such</span> <span word="variables">variables</span> <span word="as">as</span> <span word="age">age</span>, <span word="gender">gender</span> <span word="and">and</span> <span word="ethnic">ethnic</span> <span word="origin">origin</span>, <span word="the">the</span> <span word="latter">latter</span> <span word="being">being</span> <span word="important">important</span> <span word="as">as</span> <span word="different">different</span> <span word="ethnic">ethnic</span> <span word="groups">groups</span> <span word="have">have</span> <span word="very">very</span> <span word="different">different</span> <span word="fat">fat</span> <span word="distributions">distributions</span>. <span word="Another">Another</span> <span word="shortcoming">shortcoming</span> <span word="is">is</span> <span word="that">that</span> <span word="it">it</span> <span word="is">is</span> <span word="not">not</span> <span word="applicable">applicable</span> <span word="to">to</span> <span word="certain">certain</span> <span word="very">very</span> <span word="muscular">muscular</span> <span word="people">people</span> <span word="such">such</span> <span word="as">as</span> <span word="athletes">athletes</span> <span word="and">and</span> <span word="bodybuilders">bodybuilders</span>, <span word="who">who</span> <span word="can">can</span> <span word="also">also</span> <span word="have">have</span> <span word="artificially">artificially</span> <span word="high">high</span> <span word="BMIs">BMIs</span>. <span word="Agencies">Agencies</span> <span word="such">such</span> <span word="as">as</span> <span word="the">the</span> <span word="National">National</span> <span word="Cholesterol">Cholesterol</span> <span word="Education">Education</span> <span word="Program">Program</span> <span word="in">in</span> <span word="the">the</span> <span word="USA">USA</span> <span word="and">and</span> <span word="the">the</span> <span word="International">International</span> <span word="Diabetes">Diabetes</span> <span word="Foundation">Foundation</span> <span word="are">are</span> <span word="starting">starting</span> <span word="to">to</span> <span word="define">define</span> <span word="obesity">obesity</span> <span word="in">in</span> <span word="adults">adults</span> <span word="simply">simply</span> <span word="in">in</span> <span word="terms">terms</span> <span word="of">of</span> <span word="waist">waist</span> <span word="circumference">circumference</span>.</p><p> <span word="Health">Health</span> <span word="Effects">Effects</span> <span word="of">of</span> <span word="Obesity">Obesity</span></p><p> <span word="D">D</span>: <span word="Over">Over</span> 2000 <span word="years">years</span> <span word="ago">ago</span>, <span word="the">the</span> <span word="Greek">Greek</span> <span word="physician">physician</span> <span word="Hippocrates">Hippocrates</span> <span word="wrote">wrote</span> <span word="that">that</span> <span word="persons">persons</span> <span word="who">who</span> <span word="are">are</span> <span word="naturally">naturally</span> <span word="very">very</span> <span word="fat">fat</span> <span word="are">are</span> <span word="apt">apt</span> <span word="to">to</span> <span word="die">die</span> <span word="earlier">earlier</span> <span word="than">than</span> <span word="those">those</span> <span word="who">who</span> <span word="are">are</span> <span word="slender">slender</span>. <span word="This">This</span> <span word="observation">observation</span> <span word="remains">remains</span> <span word="very">very</span> <span word="true">true</span> <span word="today">today</span>. <span word="Obesity">Obesity</span> <span word="has">has</span> <span word="a">a</span> <span word="major">major</span> <span word="impact">impact</span> <span word="on">on</span> <span word="a">a</span> <span word="persons">persons</span> <span word="physical">physical</span>, <span word="social">social</span> <span word="and">and</span> <span word="emotional">emotional</span> <span word="well">well</span>-<span word="being">being</span>. <span word="It">It</span> <span word="increases">increases</span> <span word="the">the</span> <span word="risk">risk</span> <span word="of">of</span> <span word="developing">developing</span> <span word="diabetes">diabetes</span> <span word="mellitus">mellitus</span> <span word="type">type</span> 2 <span word="and">and</span> <span word="also">also</span> <span word="makes">makes</span> <span word="Type">Type</span> 2 <span word="diabetes">diabetes</span> <span word="more">more</span> <span word="difficult">difficult</span> <span word="to">to</span> <span word="control">control</span>. <span word="Thus">Thus</span> <span word="weight">weight</span> <span word="loss">loss</span> <span word="improves">improves</span> <span word="the">the</span> <span word="levels">levels</span> <span word="of">of</span> <span word="blood">blood</span> <span word="glucose">glucose</span> <span word="and">and</span> <span word="blood">blood</span> <span word="fats">fats</span>, <span word="and">and</span> <span word="reduces">reduces</span> <span word="blood">blood</span> <span word="pressure">pressure</span>. <span word="The">The</span> <span word="association">association</span> <span word="between">between</span> <span word="obesity">obesity</span> <span word="and">and</span> <span word="coronary">coronary</span> <span word="heart">heart</span> <span word="disease">disease</span> <span word="is">is</span> <span word="also">also</span> <span word="well">well</span>-<span word="known">known</span>.</p>
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