大学英语六级讲义与笔记:阅读部分(十二)
<p> <span word="Imagine">Imagine</span> <span word="eating">eating</span> <span word="everything">everything</span> <span word="delicious">delicious</span> <span word="you">you</span> <span word="want">want</span> - <span word="with">with</span> <span word="none">none</span> <span word="of">of</span> <span word="the">the</span> <span word="fat">fat</span>. <span word="That">That</span> <span word="would">would</span> <span word="be">be</span> <span word="great">great</span>, <span word="wouldnt">wouldnt</span> <span word="it">it</span>?</p><p> <span word="New">New</span> <span word="fake">fake</span> <span word="fat">fat</span> <span word="products">products</span> <span word="appeared">appeared</span> <span word="on">on</span> <span word="store">store</span> <span word="shelves">shelves</span> <span word="in">in</span> <span word="the">the</span> <span word="United">United</span> <span word="States">States</span> <span word="recently">recently</span>, <span word="but">but</span> <span word="not">not</span> <span word="everyone">everyone</span> <span word="is">is</span> <span word="happy">happy</span> <span word="about">about</span> <span word="it">it</span>. <span word="Makers">Makers</span> <span word="of">of</span> <span word="the">the</span> <span word="products">products</span>, <span word="which">which</span> <span word="contain">contain</span> <span word="a">a</span> <span word="compound">compound</span> <span word="called">called</span> <span word="olestra">olestra</span>, <span word="say">say</span> <span word="food">food</span> <span word="manufacturers">manufacturers</span> <span word="can">can</span> <span word="now">now</span> <span word="eliminate">eliminate</span> <span word="fat">fat</span> <span word="from">from</span> <span word="certain">certain</span> <span word="foods">foods</span>. <span word="Critics">Critics</span>, <span word="however">however</span>, <span word="say">say</span> <span word="the">the</span> <span word="new">new</span> <span word="compound">compound</span> <span word="can">can</span> <span word="rob">rob</span> <span word="the">the</span> <span word="body">body</span> <span word="of">of</span> <span word="essential">essential</span> <span word="vitamins">vitamins</span> <span word="and">and</span> <span word="nutrients">nutrients</span> <span word="and">and</span> <span word="can">can</span> <span word="also">also</span> <span word="cause">cause</span> <span word="unpleasant">unpleasant</span> <span word="side">side</span> <span word="effects">effects</span> <span word="in">in</span> <span word="some">some</span> <span word="people">people</span>. <span word="So">So</span> <span word="its">its</span> <span word="up">up</span> <span word="to">to</span> <span word="decide">decide</span> <span word="whether">whether</span> <span word="the">the</span> <span word="new">new</span> <span word="fat">fat</span>-<span word="free">free</span> <span word="products">products</span> <span word="taste">taste</span> <span word="good">good</span> <span word="enough">enough</span> <span word="to">to</span> <span word="keep">keep</span> <span word="eating">eating</span>.</p><p> 注：<span word="eliminate">eliminate</span>消除</p><p> <span word="Chemists">Chemists</span> <span word="discovered">discovered</span> <span word="olestra">olestra</span> <span word="in">in</span> <span word="the">the</span> <span word="late">late</span> 1960<span word="s">s</span>, <span word="when">when</span> <span word="they">they</span> <span word="were">were</span> <span word="searching">searching</span> <span word="for">for</span> <span word="a">a</span> <span word="fat">fat</span> <span word="that">that</span> <span word="could">could</span> <span word="be">be</span> <span word="digested">digested</span> <span word="by">by</span> <span word="infants">infants</span> <span word="more">more</span> <span word="easily">easily</span>. <span word="Instead">Instead</span> <span word="of">of</span> <span word="finding">finding</span> <span word="the">the</span> <span word="desired">desired</span> <span word="fat">fat</span>, <span word="the">the</span> <span word="researchers">researchers</span> <span word="created">created</span> <span word="a">a</span> <span word="fat">fat</span> <span word="that">that</span> <span word="cant">cant</span> <span word="be">be</span> <span word="digested">digested</span> <span word="at">at</span> <span word="all">all</span>.</p><p> <span word="Normally">Normally</span>, <span word="special">special</span> <span word="chemicals">chemicals</span> <span word="in">in</span> <span word="the">the</span> <span word="intestines">intestines</span> <span word="grab">grab</span> <span word="molecules">molecules</span> <span word="of">of</span> <span word="regular">regular</span> <span word="fat">fat</span> <span word="and">and</span> <span word="break">break</span> <span word="them">them</span> <span word="down">down</span> <span word="so">so</span> <span word="they">they</span> <span word="can">can</span> <span word="be">be</span> <span word="used">used</span> <span word="by">by</span> <span word="the">the</span> <span word="body">body</span>. <span word="A">A</span> <span word="molecule">molecule</span> <span word="of">of</span> <span word="regular">regular</span> <span word="fat">fat</span> <span word="is">is</span> <span word="made">made</span> <span word="up">up</span> <span word="of">of</span> <span word="three">three</span> <span word="molecule">molecule</span> <span word="of">of</span> <span word="substances">substances</span> <span word="called">called</span> <span word="fatty">fatty</span> <span word="acids">acids</span>.</p><p> <span word="The">The</span> <span word="fatty">fatty</span> <span word="acids">acids</span> <span word="are">are</span> <span word="absorbed">absorbed</span> <span word="by">by</span> <span word="the">the</span> <span word="intestines">intestines</span> <span word="and">and</span> <span word="bring">bring</span> <span word="with">with</span> <span word="them">them</span> <span word="the">the</span> <span word="essential">essential</span> <span word="vitamins">vitamins</span> <span word="A">A</span>, <span word="D">D</span>, <span word="E">E</span>, <span word="and">and</span> <span word="K">K</span>. <span word="When">When</span> <span word="fat">fat</span> <span word="molecules">molecules</span> <span word="are">are</span> <span word="present">present</span> <span word="in">in</span> <span word="the">the</span> <span word="intestines">intestines</span> <span word="with">with</span> <span word="any">any</span> <span word="of">of</span> <span word="those">those</span> <span word="vitamins">vitamins</span>, <span word="the">the</span> <span word="vitamins">vitamins</span> <span word="attach">attach</span> <span word="to">to</span> <span word="the">the</span> <span word="molecules">molecules</span> <span word="and">and</span> <span word="are">are</span> <span word="carried">carried</span> <span word="into">into</span> <span word="the">the</span> <span word="bloodstream">bloodstream</span>.</p><p> <span word="Olestra">Olestra</span>, <span word="which">which</span> <span word="is">is</span> <span word="made">made</span> <span word="from">from</span> <span word="six">six</span> <span word="to">to</span> <span word="eight">eight</span> <span word="molecules">molecules</span> <span word="of">of</span> <span word="fatty">fatty</span> <span word="acids">acids</span>, <span word="is">is</span> <span word="too">too</span> <span word="large">large</span> <span word="for">for</span> <span word="the">the</span> <span word="intestines">intestines</span> <span word="to">to</span> <span word="absorb">absorb</span>. <span word="It">It</span> <span word="just">just</span> <span word="slides">slides</span> <span word="through">through</span> <span word="the">the</span> <span word="intestines">intestines</span> <span word="without">without</span> <span word="being">being</span> <span word="broken">broken</span> <span word="down">down</span>. <span word="Manufacturers">Manufacturers</span> <span word="say">say</span> <span word="its">its</span> <span word="that">that</span> <span word="ability">ability</span> <span word="to">to</span> <span word="slide">slide</span> <span word="unchanged">unchanged</span> <span word="through">through</span> <span word="the">the</span> <span word="intestines">intestines</span> <span word="that">that</span> <span word="makes">makes</span> <span word="olestra">olestra</span> <span word="so">so</span> <span word="valuable">valuable</span> <span word="as">as</span> <span word="a">a</span> <span word="fat">fat</span> <span word="substitute">substitute</span>. <span word="It">It</span> <span word="provides">provides</span> <span word="consumers">consumers</span> <span word="with">with</span> <span word="the">the</span> <span word="taste">taste</span> <span word="of">of</span> <span word="regular">regular</span> <span word="fat">fat</span> <span word="without">without</span> <span word="any">any</span> <span word="bad">bad</span> <span word="effects">effects</span> <span word="on">on</span> <span word="the">the</span> <span word="body">body</span>. <span word="But">But</span> <span word="critics">critics</span> <span word="say">say</span> <span word="olestra">olestra</span> <span word="can">can</span> <span word="prevent">prevent</span> <span word="vitamins">vitamins</span> <span word="A">A</span>, <span word="D">D</span>, <span word="E">E</span>, <span word="and">and</span> <span word="K">K</span> <span word="from">from</span> <span word="being">being</span> <span word="absorbed">absorbed</span>. <span word="It">It</span> <span word="can">can</span> <span word="also">also</span> <span word="prevent">prevent</span> <span word="the">the</span> <span word="absorption">absorption</span> <span word="of">of</span> <span word="carotenoids">carotenoids</span> , <span word="compounds">compounds</span> <span word="that">that</span> <span word="may">may</span> <span word="reduce">reduce</span> <span word="the">the</span> <span word="risk">risk</span> <span word="of">of</span> <span word="cancer">cancer</span>, <span word="heart">heart</span> <span word="disease">disease</span>, <span word="etc">etc</span>.</p>
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