2014年初三年级英语家庭作业
</p><p><span word="MSG">MSG</span>(<span word="monosodium">monosodium</span> <span word="glutamate">glutamate</span>) <span word="is">is</span> <span word="a">a</span> <span word="food">food</span> <span word="additive">additive</span>(食品添加剂),<span word="which">which</span> <span word="has">has</span> <span word="been">been</span> <span word="widely">widely</span> <span word="used">used</span> <span word="by">by</span> <span word="many">many</span> <span word="food">food</span> <span word="factories">factories</span> <span word="all">all</span> <span word="over">over</span> <span word="the">the</span> <span word="world">world</span> <span word="since">since</span> <span word="it">it</span> <span word="appeared">appeared</span> <span word="first">first</span> <span word="in">in</span> <span word="Japan">Japan</span> <span word="in">in</span> 1909.</p><p><span word="MSG">MSG</span> <span word="is">is</span> <span word="a">a</span> <span word="substance">substance</span> <span word="that">that</span> <span word="is">is</span> <span word="added">added</span> <span word="to">to</span> <span word="some">some</span> <span word="food">food</span> <span word="to">to</span> <span word="improve">improve</span> <span word="its">its</span> <span word="original">original</span>(原先的) <span word="taste">taste</span> <span word="and">and</span> <span word="color">color</span>. <span word="It">It</span> <span word="is">is</span> <span word="used">used</span> <span word="in">in</span> <span word="foods">foods</span> <span word="around">around</span> <span word="the">the</span> <span word="world">world</span> <span word="such">such</span> <span word="as">as</span> <span word="cakes">cakes</span>, <span word="bread">bread</span>, <span word="frozen">frozen</span> <span word="meats">meats</span>, <span word="fish">fish</span> <span word="and">and</span> <span word="vegetables">vegetables</span>. <span word="In">In</span> <span word="the">the</span> <span word="beginning">beginning</span>, <span word="people">people</span> <span word="thought">thought</span> <span word="MSG">MSG</span> <span word="was">was</span> <span word="safe">safe</span> <span word="just">just</span> <span word="like">like</span> <span word="salt">salt</span> <span word="and">and</span> <span word="sugar">sugar</span>. <span word="However">However</span>, <span word="in">in</span> 1968 <span word="some">some</span> <span word="people">people</span> <span word="reported">reported</span> <span word="they">they</span> <span word="seemed">seemed</span> <span word="to">to</span> <span word="have">have</span> <span word="bad">bad</span> <span word="reactions">reactions</span>(反应) <span word="to">to</span> <span word="MSG">MSG</span> <span word="after">after</span> <span word="having">having</span> <span word="had">had</span> <span word="a">a</span> <span word="meal">meal</span> <span word="at">at</span> <span word="a">a</span> <span word="restaurant">restaurant</span>. <span word="They">They</span> <span word="included">included</span> <span word="headaches">headaches</span> <span word="and">and</span> <span word="quick">quick</span> <span word="heartbeat">heartbeat</span>(心跳). <span word="It">It</span> <span word="was">was</span> <span word="also">also</span> <span word="reported">reported</span> <span word="that">that</span> <span word="MSG">MSG</span> <span word="excited">excited</span> <span word="a">a</span> <span word="persons">persons</span> <span word="brain">brain</span> <span word="and">and</span> <span word="caused">caused</span> <span word="his">his</span> <span word="death">death</span> <span word="in">in</span> <span word="Japan">Japan</span>. <span word="Scientists">Scientists</span> <span word="think">think</span> <span word="that">that</span> <span word="MSG">MSG</span> <span word="may">may</span> <span word="lead">lead</span> <span word="to">to</span> <span word="many">many</span> <span word="neurological">neurological</span> <span word="disorders">disorders</span>(神经紊乱). <span word="In">In</span> <span word="mice">mice</span> <span word="studies">studies</span> <span word="done">done</span> <span word="by">by</span> <span word="a">a</span> <span word="university">university</span>, <span word="the">the</span> <span word="evidence">evidence</span> <span word="showed">showed</span> <span word="the">the</span> <span word="mice">mice</span> <span word="didnt">didnt</span> <span word="want">want</span> <span word="to">to</span> <span word="eat">eat</span> <span word="the">the</span> <span word="food">food</span> <span word="including">including</span> <span word="MSG">MSG</span>.</p><p><span word="Today">Today</span> <span word="many">many</span> <span word="food">food</span> <span word="companies">companies</span> <span word="hide">hide</span> <span word="MSG">MSG</span> <span word="on">on</span> <span word="food">food</span> <span word="labels">labels</span>(标签) <span word="by">by</span> <span word="using">using</span> <span word="different">different</span> <span word="names">names</span>. <span word="If">If</span> <span word="you">you</span> <span word="see">see</span> <span word="natural">natural</span> <span word="flavorings">flavorings</span> (调味品) ,<span word="hydrolyzed">hydrolyzed</span> <span word="proteinand">proteinand</span> <span word="spices">spices</span> <span word="in">in</span> <span word="a">a</span> <span word="food">food</span> <span word="label">label</span>, <span word="you">you</span> <span word="are">are</span> <span word="probably">probably</span> <span word="seeing">seeing</span> <span word="a">a</span> <span word="hidden">hidden</span> <span word="way">way</span> <span word="to">to</span> <span word="report">report</span> <span word="MSG">MSG</span> <span word="in">in</span> <span word="a">a</span> <span word="food">food</span> <span word="label">label</span>. <span word="Every">Every</span> <span word="time">time</span> <span word="we">we</span> <span word="have">have</span> <span word="a">a</span> <span word="meal">meal</span> <span word="in">in</span> <span word="a">a</span> <span word="restaurant">restaurant</span>, <span word="we">we</span> <span word="always">always</span> <span word="feel">feel</span> <span word="the">the</span> <span word="food">food</span> <span word="very">very</span> <span word="delicious">delicious</span> <span word="to">to</span> <span word="taste">taste</span>, <span word="but">but</span> <span word="sometimes">sometimes</span> <span word="it">it</span> <span word="is">is</span> <span word="dangerous">dangerous</span> <span word="for">for</span> <span word="our">our</span> <span word="health">health</span> <span word="because">because</span> <span word="some">some</span> <span word="poisonous">poisonous</span> (有毒的)<span word="food">food</span> <span word="additives">additives</span> <span word="have">have</span> <span word="been">been</span> <span word="added">added</span> <span word="to">to</span> <span word="the">the</span> <span word="food">food</span>.</p>
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