Africa's Great Green Wall 非洲的“绿色长城”
<p><span word="Africa">Africa</span>'<span word="s">s</span> <span word="Great">Great</span> <span word="Green">Green</span> <span word="Wall">Wall</span> 非洲的“绿色长城”</p><p>本集内容 <span word="Africa">Africa</span>'<span word="s">s</span> <span word="Great">Great</span> <span word="Green">Green</span> <span word="Wall">Wall</span> 非洲的“绿色长城”</p><p>学习要点 有关“<span word="The">The</span> <span word="environment">environment</span> 环境”的词汇</p><p>边看边答 <span word="Which">Which</span> <span word="kind">kind</span> <span word="of">of</span> <span word="trees">trees</span> <span word="are">are</span> <span word="drought">drought</span>-<span word="resistant">resistant</span>?</p><p> <span word="Africa">Africa</span> <span word="is">is</span> <span word="building">building</span> <span word="a">a</span> <span word="giant">giant</span> <span word="wall">wall</span> - <span word="of">of</span> <span word="trees">trees</span>. <span word="It">It</span> <span word="stretches">stretches</span> <span word="across">across</span> <span word="the">the</span> <span word="entire">entire</span> <span word="continent">continent</span>, <span word="in">in</span> <span word="a">a</span> <span word="bid">bid</span> <span word="to">to</span> <span word="help">help</span> <span word="fight">fight</span> <span word="the">the</span> <span word="effects">effects</span> <span word="of">of</span> <span word="climate">climate</span> <span word="change">change</span>. <span word="It">It</span>’<span word="s">s</span> <span word="called">called</span> <span word="the">the</span> <span word="Great">Great</span> <span word="Green">Green</span> <span word="Wall">Wall</span> - <span word="but">but</span> <span word="can">can</span> <span word="it">it</span> <span word="work">work</span>?</p><p><span word="The">The</span> <span word="wall">wall</span> <span word="spans">spans</span> 11 <span word="countries">countries</span> - <span word="measuring">measuring</span> 8,000 <span word="kilometres">kilometres</span> <span word="long">long</span> <span word="and">and</span> 15 <span word="kilometres">kilometres</span> <span word="wide">wide</span>. <span word="So">So</span> <span word="far">far</span>, <span word="Senegal">Senegal</span> <span word="has">has</span> <span word="made">made</span> <span word="the">the</span> <span word="best">best</span> <span word="progress">progress</span> <span word="by">by</span> <span word="planting">planting</span> 11 <span word="million">million</span> <span word="trees">trees</span>.</p><p><span word="This">This</span> <span word="village">village</span> <span word="chief">chief</span> <span word="says">says</span> <span word="the">the</span> <span word="Green">Green</span> <span word="Wall">Wall</span> <span word="is">is</span> <span word="reversing">reversing</span> <span word="desertification">desertification</span>.</p><p><span word="Absaman">Absaman</span> <span word="Moudouba">Moudouba</span> - <span word="Village">Village</span> <span word="Chief">Chief</span></p><p><span word="When">When</span> <span word="there">there</span> <span word="were">were</span> <span word="no">no</span> <span word="trees">trees</span>, <span word="the">the</span> <span word="wind">wind</span> <span word="used">used</span> <span word="to">to</span> <span word="dig">dig</span> <span word="up">up</span> <span word="and">and</span> <span word="erode">erode</span> <span word="the">the</span> <span word="soil">soil</span> <span word="but">but</span> <span word="it">it</span> <span word="is">is</span> <span word="more">more</span> <span word="protected">protected</span> <span word="now">now</span>. <span word="The">The</span> <span word="leaves">leaves</span> <span word="provide">provide</span> <span word="compost">compost</span> <span word="and">and</span> <span word="the">the</span> <span word="canopy">canopy</span> <span word="increases">increases</span> <span word="the">the</span> <span word="humidity">humidity</span> <span word="of">of</span> <span word="the">the</span> <span word="environment">environment</span> <span word="and">and</span> <span word="offers">offers</span> <span word="some">some</span> <span word="shade">shade</span> <span word="so">so</span> <span word="there">there</span> <span word="is">is</span> <span word="less">less</span> <span word="need">need</span> <span word="for">for</span> <span word="a">a</span> <span word="lot">lot</span> <span word="of">of</span> <span word="watering">watering</span>.</p><p><span word="The">The</span> <span word="project">project</span> <span word="is">is</span> <span word="planting">planting</span> <span word="drought">drought</span>-<span word="resistant">resistant</span> <span word="acacia">acacia</span> <span word="trees">trees</span>. <span word="The">The</span> <span word="tree">tree</span> <span word="roots">roots</span> <span word="hold">hold</span> <span word="the">the</span> <span word="water">water</span> <span word="in">in</span> <span word="the">the</span> <span word="soil">soil</span> <span word="so">so</span> <span word="formerly">formerly</span> <span word="dry">dry</span> <span word="wells">wells</span> <span word="have">have</span> <span word="filled">filled</span> <span word="up">up</span> <span word="again">again</span>.</p><p><span word="Absaman">Absaman</span> <span word="Moudouba">Moudouba</span> - <span word="Village">Village</span> <span word="Chief">Chief</span></p><p><span word="Before">Before</span>, <span word="there">there</span> <span word="was">was</span> <span word="widespread">widespread</span> <span word="drought">drought</span> <span word="and">and</span> <span word="hunger">hunger</span> <span word="here">here</span>. <span word="Then">Then</span> <span word="the">the</span> <span word="tree">tree</span> <span word="planting">planting</span> <span word="took">took</span> <span word="place">place</span> <span word="and">and</span> <span word="then">then</span> <span word="a">a</span> <span word="garden">garden</span> <span word="for">for</span> <span word="the">the</span> <span word="women">women</span> <span word="to">to</span> <span word="grow">grow</span> <span word="crops">crops</span>. <span word="Before">Before</span> <span word="people">people</span> <span word="used">used</span> <span word="to">to</span> <span word="migrate">migrate</span> <span word="but">but</span> <span word="nowadays">nowadays</span> <span word="they">they</span> <span word="just">just</span> <span word="follow">follow</span> <span word="the">the</span> <span word="line">line</span> <span word="of">of</span> <span word="the">the</span> <span word="Great">Great</span> <span word="Green">Green</span> <span word="Wall">Wall</span> <span word="for">for</span> <span word="jobs">jobs</span>. <span word="They">They</span> <span word="no">no</span> <span word="longer">longer</span> <span word="leave">leave</span>.</p>
页:
[1]