英语六级阅读练习：灰尘背后的那些事儿03
<p> <span word="The">The</span> <span word="fact">fact</span> <span word="that">that</span> <span word="DDT">DDT</span> <span word="is">is</span> <span word="still">still</span> <span word="in">in</span> <span word="house">house</span> <span word="dust">dust</span> <span word="is">is</span> <span word="a">a</span> <span word="surprise">surprise</span> <span word="to">to</span> <span word="most">most</span> <span word="people">people</span>, <span word="since">since</span> <span word="the">the</span> <span word="pesticide">pesticide</span> <span word="was">was</span> <span word="banned">banned</span> <span word="in">in</span> <span word="the">the</span> <span word="U">U</span>.<span word="S">S</span>. <span word="in">in</span> 1972. <span word="But">But</span> <span word="a">a</span> <span word="house">house</span> <span word="is">is</span> <span word="a">a</span> <span word="little">little</span> <span word="like">like</span> <span word="a">a</span> <span word="living">living</span> <span word="organism">organism</span>: <span word="once">once</span> <span word="it">it</span> <span word="absorbs">absorbs</span> <span word="a">a</span> <span word="contaminant">contaminant</span>, <span word="it">it</span> <span word="may">may</span> <span word="never">never</span> <span word="purge">purge</span> <span word="it">it</span> <span word="completely">completely</span>. <span word="Dust">Dust</span> <span word="in">in</span> <span word="our">our</span> <span word="homes">homes</span>, <span word="says">says</span> <span word="Beamer">Beamer</span>, <span word="especially">especially</span> <span word="deep">deep</span> <span word="dust">dust</span> <span word="in">in</span> <span word="our">our</span> <span word="carpets">carpets</span> <span word="and">and</span> <span word="furniture">furniture</span>, <span word="is">is</span> <span word="a">a</span> <span word="conglomerate">conglomerate</span> <span word="of">of</span> <span word="substances">substances</span> <span word="over">over</span> <span word="the">the</span> <span word="life">life</span> <span word="of">of</span> <span word="the">the</span> <span word="home">home</span> <span word="and">and</span> <span word="can">can</span> <span word="provide">provide</span> <span word="a">a</span> <span word="historical">historical</span> <span word="record">record</span> <span word="of">of</span> <span word="chemicals">chemicals</span> <span word="that">that</span> <span word="have">have</span> <span word="entered">entered</span> <span word="it">it</span>.</p><p> <span word="contaminant">contaminant</span> <span word="n">n</span>. 污染物;致污物</p><p> <span word="purge">purge</span> <span word="v">v</span>. 净化;清除</p><p> <span word="The">The</span> <span word="mess">mess</span> <span word="that">that</span> <span word="originates">originates</span> <span word="within">within</span> <span word="the">the</span> <span word="home">home</span> <span word="is">is</span> <span word="a">a</span> <span word="lot">lot</span> <span word="easier">easier</span> <span word="to">to</span> <span word="measure">measure</span> <span word="and">and</span> <span word="control">control</span>. <span word="The">The</span> <span word="more">more</span> <span word="people">people</span> <span word="who">who</span> <span word="live">live</span> <span word="there">there</span>, <span word="the">the</span> <span word="more">more</span> <span word="skin">skin</span> <span word="thats">thats</span> <span word="going">going</span> <span word="to">to</span> <span word="be">be</span> <span word="shed">shed</span>, <span word="the">the</span> <span word="more">more</span> <span word="pets">pets</span>, <span word="the">the</span> <span word="more">more</span> <span word="animal">animal</span> <span word="fur">fur</span>. <span word="And">And</span>, <span word="as">as</span> <span word="Mom">Mom</span> <span word="always">always</span> <span word="warned">warned</span>, <span word="the">the</span> <span word="more">more</span> <span word="you">you</span> <span word="walk">walk</span> <span word="around">around</span> <span word="the">the</span> <span word="house">house</span> <span word="while">while</span> <span word="eating">eating</span>, <span word="the">the</span> <span word="more">more</span> <span word="food">food</span> <span word="debris">debris</span> <span word="youll">youll</span> <span word="drop">drop</span> <span word="on">on</span> <span word="the">the</span> <span word="floor">floor</span> <span word="which">which</span> <span word="also">also</span> <span word="attracts">attracts</span> <span word="more">more</span> <span word="insects">insects</span> <span word="that">that</span> <span word="will">will</span> <span word="die">die</span>, <span word="decompose">decompose</span> <span word="and">and</span> <span word="add">add</span> <span word="their">their</span> <span word="own">own</span> <span word="special">special</span> <span word="zest">zest</span> <span word="to">to</span> <span word="your">your</span> <span word="dust">dust</span>. <span word="Cooking">Cooking</span> <span word="smoke">smoke</span> <span word="and">and</span> <span word="tobacco">tobacco</span> <span word="smoke">smoke</span>, <span word="which">which</span> <span word="are">are</span> <span word="the">the</span> <span word="most">most</span> <span word="obvious">obvious</span> <span word="contributors">contributors</span> <span word="when">when</span> <span word="theyre">theyre</span> <span word="being">being</span> <span word="produced">produced</span>, <span word="actually">actually</span> <span word="make">make</span> <span word="only">only</span> <span word="a">a</span> <span word="small">small</span> <span word="contribution">contribution</span> <span word="to">to</span> <span word="what">what</span> <span word="winds">winds</span> <span word="up">up</span> <span word="on">on</span> <span word="floors">floors</span> <span word="and">and</span> <span word="surfaces">surfaces</span>. <span word="The">The</span> <span word="tiny">tiny</span> <span word="size">size</span> <span word="of">of</span> <span word="the">the</span> <span word="particles">particles</span> <span word="makes">makes</span> <span word="them">them</span> <span word="likelier">likelier</span> <span word="to">to</span> <span word="rise">rise</span> <span word="and">and</span> <span word="adhere">adhere</span> <span word="to">to</span> <span word="other">other</span> <span word="surfaces">surfaces</span> <span word="or">or</span> <span word="simply">simply</span> <span word="remain">remain</span> <span word="in">in</span> <span word="the">the</span> <span word="air">air</span> <span word="than">than</span> <span word="to">to</span> <span word="settle">settle</span>.</p><p> <span word="shed">shed</span> <span word="v">v</span>. 散发;流出</p><p> <span word="wind">wind</span> <span word="up">up</span> 卷起;扬起</p><p> <span word="It">It</span> <span word="goes">goes</span> <span word="without">without</span> <span word="saying">saying</span> <span word="that">that</span> <span word="your">your</span> <span word="home">home</span> <span word="will">will</span> <span word="never">never</span> <span word="be">be</span> <span word="dust">dust</span>-<span word="free">free</span>, <span word="but">but</span> <span word="there">there</span> <span word="are">are</span> <span word="ways">ways</span> <span word="to">to</span> <span word="reduce">reduce</span> <span word="your">your</span> <span word="own">own</span> <span word="dust">dust</span> <span word="loading">loading</span> <span word="and">and</span> <span word="its">its</span> <span word="important">important</span> <span word="that">that</span> <span word="you">you</span> <span word="try">try</span>. <span word="Dust">Dust</span> <span word="mites">mites</span>, <span word="which">which</span> <span word="feed">feed</span> <span word="on">on</span> <span word="shed">shed</span> <span word="skin">skin</span>, <span word="produce">produce</span> <span word="allergens">allergens</span> <span word="that">that</span> <span word="are">are</span> <span word="known">known</span> <span word="triggers">triggers</span> <span word="for">for</span> <span word="people">people</span> <span word="suffering">suffering</span> <span word="from">from</span> <span word="asthma">asthma</span>. <span word="Same">Same</span> <span word="goes">goes</span> <span word="for">for</span> <span word="cockroach">cockroach</span> <span word="dust">dust</span>, <span word="especially">especially</span> <span word="in">in</span> <span word="cities">cities</span>. <span word="No">No</span> <span word="one">one</span> <span word="needs">needs</span> <span word="much">much</span> <span word="convincing">convincing</span> <span word="about">about</span> <span word="the">the</span> <span word="wisdom">wisdom</span> <span word="of">of</span> <span word="getting">getting</span> <span word="rid">rid</span> <span word="of">of</span> <span word="arsenic">arsenic</span>, <span word="and">and</span> <span word="the">the</span> <span word="good">good</span> <span word="news">news</span> <span word="is">is</span> <span word="that">that</span> <span word="about">about</span> 80% <span word="of">of</span> <span word="it">it</span> <span word="can">can</span> <span word="be">be</span> <span word="removed">removed</span> <span word="simply">simply</span> <span word="by">by</span> <span word="cleaning">cleaning</span> <span word="floor">floor</span> <span word="dust">dust</span> <span word="regularly">regularly</span>.</p>
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