雅思口语素材：Earth Day(世界地球日)
<p> <span word="Earth">Earth</span> <span word="DayApril">DayApril</span> 22<span word="thEarth">thEarth</span> <span word="Day">Day</span> <span word="was">was</span> <span word="first">first</span> <span word="observed">observed</span> <span word="in">in</span> <span word="Spring">Spring</span> <span word="of">of</span> 1970. <span word="An">An</span> <span word="estimated">estimated</span> 20 <span word="million">million</span> <span word="people">people</span> <span word="nationwide">nationwide</span> <span word="attendedfestivities">attendedfestivities</span> <span word="out">out</span> <span word="of">of</span> <span word="which">which</span> <span word="came">came</span> <span word="the">the</span> <span word="largest">largest</span> <span word="grassroots">grassroots</span> <span word="environmental">environmental</span> <span word="movement">movement</span> <span word="in">in</span> <span word="U">U</span>.<span word="S">S</span>. <span word="history">history</span>, <span word="and">and</span> <span word="the">the</span> <span word="impetus">impetus</span> <span word="for">for</span> <span word="national">national</span> <span word="legislation">legislation</span> <span word="like">like</span> <span word="the">the</span> <span word="Clean">Clean</span> <span word="Air">Air</span> <span word="and">and</span> <span word="Clean">Clean</span> <span word="Water">Water</span> <span word="Acts">Acts</span>. <span word="By">By</span> <span word="the">the</span> <span word="twentieth">twentieth</span> <span word="anniversary">anniversary</span> <span word="of">of</span> <span word="that">that</span> <span word="event">event</span>, <span word="April">April</span> 22, 1990, <span word="more">more</span> <span word="than">than</span> 200 <span word="million">million</span> <span word="people">people</span> <span word="in">in</span> 141 <span word="countries">countries</span> <span word="participated">participated</span> <span word="in">in</span> <span word="Earth">Earth</span> <span word="Day">Day</span> <span word="celebrations">celebrations</span>.</p><p> <span word="Former">Former</span> <span word="U">U</span>.<span word="S">S</span>. <span word="Senator">Senator</span> <span word="Gaylord">Gaylord</span> <span word="Nelson">Nelson</span>, <span word="Earth">Earth</span> <span word="Days">Days</span> <span word="co">co</span>-<span word="founder">founder</span>, <span word="modeled">modeled</span> <span word="Earth">Earth</span> <span word="Day">Day</span> <span word="on">on</span> <span word="anti">anti</span>-<span word="Vietnam">Vietnam</span> <span word="War">War</span> <span word="demonstrations">demonstrations</span>, <span word="called">called</span> <span word="teach">teach</span>-<span word="ins">ins</span>, <span word="that">that</span> <span word="were">were</span> <span word="common">common</span> <span word="on">on</span> <span word="college">college</span> <span word="campuses">campuses</span>. <span word="At">At</span> <span word="a">a</span> <span word="conference">conference</span> <span word="in">in</span> <span word="Seattle">Seattle</span> <span word="in">in</span> <span word="September">September</span> 1969, <span word="I">I</span> <span word="announced">announced</span> <span word="that">that</span> <span word="in">in</span> <span word="the">the</span> <span word="spring">spring</span> <span word="of">of</span> 1970 <span word="there">there</span> <span word="would">would</span> <span word="be">be</span> <span word="a">a</span> <span word="nationwide">nationwide</span> <span word="grassroots">grassroots</span> <span word="demonstration">demonstration</span> <span word="on">on</span> <span word="behalf">behalf</span> <span word="of">of</span> <span word="the">the</span> <span word="environment">environment</span>, <span word="says">says</span> <span word="Nelson">Nelson</span>. <span word="The">The</span> <span word="response">response</span> <span word="was">was</span> <span word="electric">electric</span>. <span word="Telegrams">Telegrams</span>, <span word="letters">letters</span>, <span word="and">and</span> <span word="telephone">telephone</span> <span word="inquiries">inquiries</span> <span word="poured">poured</span> <span word="in">in</span> <span word="from">from</span> <span word="all">all</span> <span word="across">across</span> <span word="the">the</span> <span word="country">country</span>. <span word="As">As</span> <span word="many">many</span> <span word="as">as</span> 20 <span word="million">million</span> <span word="Americans">Americans</span> <span word="participated">participated</span> <span word="in">in</span> <span word="environmental">environmental</span> <span word="rallies">rallies</span>, <span word="demonstrations">demonstrations</span> <span word="and">and</span> <span word="other">other</span> <span word="activities">activities</span> <span word="in">in</span> <span word="the">the</span> 1970 <span word="Earth">Earth</span> <span word="Day">Day</span>.</p><p> <span word="Since">Since</span> <span word="the">the</span> <span word="first">first</span> <span word="Earth">Earth</span> <span word="Day">Day</span>, <span word="however">however</span>, <span word="the">the</span> <span word="environmental">environmental</span> <span word="movement">movement</span> <span word="has">has</span> <span word="increasingly">increasingly</span> <span word="transformed">transformed</span> <span word="itself">itself</span> <span word="from">from</span> <span word="a">a</span> <span word="largely">largely</span> <span word="grassroots">grassroots</span>, <span word="citizen">citizen</span> <span word="crusade">crusade</span> <span word="to">to</span> <span word="a">a</span> <span word="professionally">professionally</span>-<span word="organized">organized</span>, <span word="established">established</span> <span word="special">special</span> <span word="interest">interest</span>.</p><p> </p>
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