大学英语六级考试拓展阅读-背诵美文77
<p> <span word="The">The</span> <span word="food">food</span> <span word="we">we</span> <span word="eat">eat</span> <span word="seems">seems</span> <span word="to">to</span> <span word="have">have</span> <span word="profound">profound</span> <span word="effects">effects</span> <span word="on">on</span> <span word="our">our</span> <span word="health">health</span>. <span word="Although">Although</span> <span word="science">science</span> <span word="has">has</span> <span word="made">made</span> <span word="enormous">enormous</span> <span word="steps">steps</span> <span word="in">in</span> <span word="making">making</span> <span word="food">food</span> <span word="more">more</span> <span word="fit">fit</span> <span word="to">to</span> <span word="eat">eat</span>, <span word="it">it</span> <span word="has">has</span>, <span word="at">at</span> <span word="the">the</span> <span word="same">same</span> <span word="time">time</span>, <span word="made">made</span> <span word="many">many</span> <span word="foods">foods</span> <span word="unfit">unfit</span> <span word="to">to</span> <span word="eat">eat</span>. <span word="Some">Some</span> <span word="research">research</span> <span word="has">has</span> <span word="shown">shown</span> <span word="that">that</span> <span word="perhaps">perhaps</span> <span word="eighty">eighty</span> <span word="percent">percent</span> <span word="of">of</span> <span word="all">all</span> <span word="human">human</span> <span word="illnesses">illnesses</span> <span word="are">are</span> <span word="related">related</span> <span word="to">to</span> <span word="diet">diet</span> <span word="and">and</span> <span word="forty">forty</span> <span word="percent">percent</span> <span word="of">of</span> <span word="cancer">cancer</span> <span word="is">is</span> <span word="related">related</span> <span word="to">to</span> <span word="the">the</span> <span word="diet">diet</span> <span word="as">as</span> <span word="well">well</span>, <span word="especially">especially</span> <span word="cancer">cancer</span> <span word="of">of</span> <span word="the">the</span> <span word="colon">colon</span>. <span word="Different">Different</span> <span word="cultures">cultures</span> <span word="are">are</span> <span word="more">more</span> <span word="prone">prone</span> <span word="to">to</span> <span word="contract">contract</span> <span word="certain">certain</span> <span word="illnesses">illnesses</span> <span word="because">because</span> <span word="of">of</span> <span word="the">the</span> <span word="food">food</span> <span word="that">that</span> <span word="is">is</span> <span word="characteristic">characteristic</span> <span word="in">in</span> <span word="these">these</span> <span word="cultures">cultures</span>. <span word="That">That</span> <span word="food">food</span> <span word="is">is</span> <span word="related">related</span> <span word="to">to</span> <span word="illness">illness</span> <span word="is">is</span> <span word="not">not</span> <span word="a">a</span> <span word="new">new</span> <span word="discovery">discovery</span>. <span word="In">In</span> 1945, <span word="government">government</span> <span word="researchers">researchers</span> <span word="realized">realized</span> <span word="that">that</span> <span word="nitrates">nitrates</span> <span word="and">and</span> <span word="nitrites">nitrites</span>, <span word="commonly">commonly</span> <span word="used">used</span> <span word="to">to</span> <span word="preserve">preserve</span> <span word="color">color</span> <span word="in">in</span> <span word="meats">meats</span>, <span word="and">and</span> <span word="other">other</span> <span word="food">food</span> <span word="additives">additives</span>, <span word="caused">caused</span> <span word="cancer">cancer</span>. <span word="Yet">Yet</span>, <span word="these">these</span> <span word="carcinogenic">carcinogenic</span> <span word="additives">additives</span> <span word="remain">remain</span> <span word="in">in</span> <span word="our">our</span> <span word="food">food</span>, <span word="and">and</span> <span word="it">it</span> <span word="becomes">becomes</span> <span word="more">more</span> <span word="difficult">difficult</span> <span word="all">all</span> <span word="the">the</span> <span word="time">time</span> <span word="to">to</span> <span word="know">know</span> <span word="which">which</span> <span word="things">things</span> <span word="in">in</span> <span word="the">the</span> <span word="packaging">packaging</span> <span word="labels">labels</span> <span word="of">of</span> <span word="processed">processed</span> <span word="food">food</span> <span word="are">are</span> <span word="helpful">helpful</span> <span word="or">or</span> <span word="harmful">harmful</span>. <span word="The">The</span> <span word="additives">additives</span> <span word="which">which</span> <span word="we">we</span> <span word="eat">eat</span> <span word="are">are</span> <span word="not">not</span> <span word="all">all</span> <span word="so">so</span> <span word="direct">direct</span>. <span word="Farmers">Farmers</span> <span word="often">often</span> <span word="give">give</span> <span word="penicillin">penicillin</span> <span word="to">to</span> <span word="beef">beef</span> <span word="and">and</span> <span word="poultry">poultry</span>, <span word="and">and</span> <span word="because">because</span> <span word="of">of</span> <span word="this">this</span>, <span word="penicillin">penicillin</span> <span word="has">has</span> <span word="been">been</span> <span word="found">found</span> <span word="in">in</span> <span word="the">the</span> <span word="milk">milk</span> <span word="of">of</span> <span word="treated">treated</span> <span word="cows">cows</span>. <span word="Sometimes">Sometimes</span> <span word="similar">similar</span> <span word="drugs">drugs</span> <span word="are">are</span> <span word="administered">administered</span> <span word="to">to</span> <span word="animals">animals</span> <span word="not">not</span> <span word="for">for</span> <span word="medicinal">medicinal</span> <span word="purposes">purposes</span>, <span word="but">but</span> <span word="for">for</span> <span word="financial">financial</span> <span word="reasons">reasons</span>. <span word="The">The</span> <span word="farmers">farmers</span> <span word="are">are</span> <span word="simply">simply</span> <span word="trying">trying</span> <span word="to">to</span> <span word="fatten">fatten</span> <span word="the">the</span> <span word="animals">animals</span> <span word="in">in</span> <span word="order">order</span> <span word="to">to</span> <span word="obtain">obtain</span> <span word="a">a</span> <span word="higher">higher</span> <span word="price">price</span> <span word="on">on</span> <span word="the">the</span> <span word="market">market</span>. <span word="Although">Although</span> <span word="the">the</span> <span word="Food">Food</span> <span word="and">and</span> <span word="Drug">Drug</span> <span word="Administration">Administration</span> <span word="has">has</span> <span word="tried">tried</span> <span word="repeatedly">repeatedly</span> <span word="to">to</span> <span word="control">control</span> <span word="these">these</span> <span word="procedures">procedures</span>, <span word="the">the</span> <span word="practices">practices</span> <span word="continue">continue</span>.</p><p> </p>
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