英语写作素材连载（五）人类活动与地球
<p> <span word="Human">Human</span> <span word="Activity">Activity</span> <span word="and">and</span> <span word="the">the</span> <span word="Earth">Earth</span></p><p> <span word="There">There</span> <span word="is">is</span> <span word="no">no</span> <span word="doubt">doubt</span> <span word="that">that</span> <span word="human">human</span> <span word="activity">activity</span> <span word="has">has</span> <span word="an">an</span> <span word="effect">effect</span> <span word="on">on</span> <span word="the">the</span> <span word="planet">planet</span>. <span word="We">We</span> <span word="see">see</span> <span word="the">the</span> <span word="evidence">evidence</span> <span word="of">of</span> <span word="mankinds">mankinds</span> <span word="endeavors">endeavors</span> <span word="all">all</span> <span word="around">around</span> <span word="us">us</span>. <span word="While">While</span> <span word="some">some</span> <span word="of">of</span> <span word="mans">mans</span> <span word="accomplishments">accomplishments</span>, <span word="such">such</span> <span word="as">as</span> <span word="the">the</span> <span word="building">building</span> <span word="of">of</span> <span word="transportation">transportation</span> <span word="systems">systems</span> <span word="and">and</span> <span word="the">the</span> <span word="consistent">consistent</span> <span word="supply">supply</span> <span word="of">of</span> <span word="potable">potable</span> <span word="water">water</span>, <span word="have">have</span> <span word="made">made</span> <span word="Earth">Earth</span> <span word="a">a</span> <span word="better">better</span> <span word="place">place</span> <span word="for">for</span> <span word="people">people</span> <span word="to">to</span> <span word="live">live</span>, <span word="they">they</span> <span word="have">have</span> <span word="not">not</span> <span word="come">come</span> <span word="without">without</span> <span word="cost">cost</span>. <span word="Overall">Overall</span>, <span word="it">it</span> <span word="seems">seems</span> <span word="that">that</span> <span word="human">human</span> <span word="activity">activity</span> <span word="harms">harms</span> <span word="the">the</span> <span word="Earth">Earth</span> <span word="more">more</span> <span word="than">than</span> <span word="it">it</span> <span word="benefits">benefits</span> <span word="it">it</span>.</p><p> <span word="For">For</span> <span word="example">example</span>, <span word="the">the</span> <span word="transportation">transportation</span> <span word="systems">systems</span> <span word="that">that</span> <span word="benefit">benefit</span> <span word="mankind">mankind</span> <span word="also">also</span> <span word="create">create</span> <span word="pollution">pollution</span> <span word="and">and</span> <span word="use">use</span> <span word="up">up</span> <span word="valuable">valuable</span> <span word="energy">energy</span> <span word="resources">resources</span>. <span word="While">While</span> <span word="we">we</span> <span word="cannot">cannot</span> <span word="do">do</span> <span word="without">without</span> <span word="transportation">transportation</span> <span word="these">these</span> <span word="days">days</span>, <span word="we">we</span> <span word="cannot">cannot</span> <span word="ignore">ignore</span> <span word="the">the</span> <span word="fact">fact</span> <span word="that">that</span> <span word="it">it</span> <span word="has">has</span> <span word="an">an</span> <span word="adverse">adverse</span> <span word="effect">effect</span> <span word="on">on</span> <span word="the">the</span> <span word="planet">planet</span>. <span word="Furthermore">Furthermore</span>, <span word="those">those</span> <span word="advances">advances</span> <span word="that">that</span> <span word="benefit">benefit</span> <span word="people">people</span> <span word="do">do</span> <span word="not">not</span> <span word="benefit">benefit</span> <span word="al">al</span> <span word="the">the</span> <span word="life">life</span> <span word="on">on</span> <span word="Earth">Earth</span>. <span word="Deforestation">Deforestation</span> <span word="endangers">endangers</span> <span word="many">many</span> <span word="animals">animals</span>, <span word="and">and</span> <span word="mankinds">mankinds</span> <span word="great">great</span> <span word="thirst">thirst</span> <span word="for">for</span> <span word="water">water</span> <span word="and">and</span> <span word="other">other</span> <span word="resources">resources</span> <span word="leads">leads</span> <span word="to">to</span> <span word="the">the</span> <span word="extinction">extinction</span> <span word="of">of</span> <span word="many">many</span> <span word="plant">plant</span> <span word="forms">forms</span>. <span word="In">In</span> <span word="addition">addition</span>, <span word="accomplishments">accomplishments</span> <span word="such">such</span> <span word="as">as</span> <span word="the">the</span> <span word="supply">supply</span> <span word="of">of</span> <span word="potable">potable</span> <span word="water">water</span> <span word="to">to</span> <span word="a">a</span> <span word="community">community</span> <span word="are">are</span> <span word="only">only</span> <span word="response">response</span> <span word="to">to</span> <span word="problems">problems</span> <span word="that">that</span> <span word="mankind">mankind</span> <span word="created">created</span> <span word="in">in</span> <span word="the">the</span> <span word="past">past</span>. <span word="It">It</span> <span word="was">was</span> <span word="man">man</span> <span word="that">that</span> <span word="made">made</span> <span word="the">the</span> <span word="water">water</span> <span word="unfit">unfit</span> <span word="to">to</span> <span word="drink">drink</span> <span word="in">in</span> <span word="the">the</span> <span word="first">first</span> <span word="place">place</span>. <span word="Finally">Finally</span>, <span word="the">the</span> <span word="damage">damage</span> <span word="that">that</span> <span word="human">human</span> <span word="activity">activity</span> <span word="causes">causes</span> <span word="will">will</span> <span word="eventually">eventually</span> <span word="have">have</span> <span word="a">a</span> <span word="negative">negative</span> <span word="effect">effect</span> <span word="on">on</span> <span word="people">people</span>. <span word="They">They</span> <span word="will">will</span> <span word="also">also</span> <span word="suffer">suffer</span> <span word="the">the</span> <span word="effects">effects</span> <span word="of">of</span> <span word="pollution">pollution</span> <span word="and">and</span> <span word="diminishing">diminishing</span> <span word="natural">natural</span> <span word="resources">resources</span>.</p><p> <span word="In">In</span> <span word="conclusion">conclusion</span>, <span word="it">it</span> <span word="seems">seems</span> <span word="apparent">apparent</span> <span word="that">that</span> <span word="mans">mans</span> <span word="activity">activity</span> <span word="benefits">benefits</span> <span word="primarily">primarily</span> <span word="himself">himself</span>, <span word="not">not</span> <span word="the">the</span> <span word="Earth">Earth</span>. <span word="Moreover">Moreover</span>, <span word="those">those</span> <span word="benefits">benefits</span> <span word="are">are</span> <span word="only">only</span> <span word="short">short</span>-<span word="term">term</span> <span word="advantages">advantages</span>, <span word="and">and</span> <span word="man">man</span> <span word="will">will</span> <span word="also">also</span> <span word="suffer">suffer</span> <span word="the">the</span> <span word="negative">negative</span> <span word="effects">effects</span> <span word="of">of</span> <span word="his">his</span> <span word="activity">activity</span> <span word="in">in</span> <span word="the">the</span> <span word="future">future</span>. <span word="The">The</span> <span word="Earth">Earth</span> <span word="does">does</span> <span word="not">not</span> <span word="have">have</span> <span word="an">an</span> <span word="inexhaustible">inexhaustible</span> <span word="supply">supply</span> <span word="of">of</span> <span word="resources">resources</span>, <span word="so">so</span> <span word="every">every</span> <span word="effort">effort</span> <span word="should">should</span> <span word="be">be</span> <span word="made">made</span> <span word="to">to</span> <span word="conserve">conserve</span> <span word="resources">resources</span> <span word="and">and</span> <span word="limit">limit</span> <span word="the">the</span> <span word="impact">impact</span> <span word="of">of</span> <span word="human">human</span> <span word="activity">activity</span> <span word="on">on</span> <span word="the">the</span> <span word="planet">planet</span>.</p>
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