2016高考英语人教新课标一轮复习选修6Unit4练习及答案（基础）
<p> 2016高考英语人教新课标一轮复习选修6<span word="Unit">Unit</span>4练习及答案（基础）</p><p> 高三英语一轮复习 <span word="Unit">Unit</span> 4 <span word="Global">Global</span> <span word="warming">warming</span>练习 新人教版选修6</p><p> Ⅰ.阅读理解</p><p> (2017·皖南八校第二次联考)</p><p> <span word="We">We</span> <span word="sometimes">sometimes</span> <span word="think">think</span> <span word="global">global</span> <span word="warming">warming</span> <span word="or">or</span> <span word="climate">climate</span> <span word="change">change</span> <span word="is">is</span> <span word="a">a</span> <span word="problem">problem</span> <span word="very">very</span> <span word="far">far</span> <span word="away">away</span> <span word="from">from</span> <span word="our">our</span> <span word="lives">lives</span>, <span word="and">and</span> <span word="that">that</span> <span word="only">only</span> <span word="the">the</span> <span word="government">government</span> <span word="needs">needs</span> <span word="to">to</span> <span word="worry">worry</span> <span word="about">about</span> <span word="it">it</span>. <span word="But">But</span> <span word="it">it</span>'<span word="s">s</span> <span word="hardly">hardly</span> <span word="possible">possible</span> <span word="to">to</span> <span word="completely">completely</span> <span word="stay">stay</span> <span word="out">out</span> <span word="of">of</span> <span word="it">it</span>—<span word="scientists">scientists</span> <span word="are">are</span> <span word="now">now</span> 95 <span word="percent">percent</span> <span word="sure">sure</span> <span word="that">that</span> <span word="humans">humans</span> <span word="have">have</span> <span word="been">been</span> <span word="the">the</span> “<span word="dominant">dominant</span> <span word="cause">cause</span>” <span word="of">of</span> <span word="global">global</span> <span word="warming">warming</span> <span word="trends">trends</span> <span word="since">since</span> <span word="the">the</span> 1950<span word="s">s</span>.</p><p> <span word="One">One</span> <span word="of">of</span> <span word="the">the</span> <span word="conclusions">conclusions</span> <span word="of">of</span> <span word="a">a</span> <span word="report">report</span> <span word="released">released</span> <span word="on">on</span> <span word="Sept">Sept</span> 27 <span word="by">by</span> <span word="the">the</span> <span word="United">United</span> <span word="Nations">Nations</span> <span word="says">says</span> <span word="that">that</span> <span word="human">human</span> <span word="activities">activities</span> <span word="have">have</span> <span word="caused">caused</span> <span word="global">global</span> <span word="temperatures">temperatures</span> <span word="to">to</span> <span word="rise">rise</span> <span word="by">by</span> 0.89℃ <span word="between">between</span> 1901 <span word="and">and</span> 2017. <span word="That">That</span> <span word="might">might</span> <span word="not">not</span> <span word="seem">seem</span> <span word="like">like</span> <span word="a">a</span> <span word="lot">lot</span>, <span word="but">but</span> <span word="the">the</span> <span word="truth">truth</span> <span word="is">is</span> <span word="that">that</span> <span word="a">a</span> <span word="major">major</span> <span word="part">part</span> <span word="of">of</span> <span word="that">that</span> <span word="heat">heat</span> <span word="has">has</span> <span word="been">been</span> <span word="absorbed">absorbed</span> <span word="into">into</span> <span word="the">the</span> <span word="oceans">oceans</span>, <span word="which">which</span> <span word="is">is</span> <span word="not">not</span> <span word="surprising">surprising</span> <span word="given">given</span> <span word="that">that</span> <span word="they">they</span> <span word="cover">cover</span> <span word="two">two</span> <span word="thirds">thirds</span> <span word="of">of</span> <span word="Earth">Earth</span>'<span word="s">s</span> <span word="surface">surface</span>. <span word="Also">Also</span>, <span word="water">water</span> <span word="has">has</span> <span word="a">a</span> <span word="much">much</span> <span word="greater">greater</span> <span word="capacity">capacity</span> (容量) <span word="to">to</span> <span word="absorb">absorb</span> <span word="heat">heat</span> <span word="than">than</span> <span word="the">the</span> <span word="air">air</span> <span word="does">does</span>, <span word="according">according</span> <span word="to">to</span> <span word="The">The</span> <span word="Economist">Economist</span>.</p><p> <span word="While">While</span> <span word="many">many</span> <span word="greenhouse">greenhouse</span> <span word="gases">gases</span> <span word="occur">occur</span> <span word="naturally">naturally</span> <span word="and">and</span> <span word="are">are</span> <span word="needed">needed</span> <span word="to">to</span> <span word="keep">keep</span> <span word="the">the</span> <span word="Earth">Earth</span> <span word="warm">warm</span> <span word="enough">enough</span> <span word="to">to</span> <span word="support">support</span> <span word="life">life</span>, <span word="humans">humans</span>' <span word="use">use</span> <span word="of">of</span> <span word="fossil">fossil</span> <span word="fuels">fuels</span> <span word="is">is</span> <span word="the">the</span> <span word="main">main</span> <span word="source">source</span> <span word="of">of</span> <span word="excess">excess</span> (多余的) <span word="greenhouse">greenhouse</span> <span word="gases">gases</span>. <span word="According">According</span> <span word="to">to</span> <span word="CNN">CNN</span>, <span word="by">by</span> <span word="driving">driving</span> <span word="cars">cars</span>, <span word="using">using</span> <span word="electricity">electricity</span> <span word="produced">produced</span> <span word="by">by</span> <span word="burning">burning</span> <span word="coal">coal</span> <span word="and">and</span> <span word="oil">oil</span> <span word="or">or</span> <span word="heating">heating</span> <span word="our">our</span> <span word="homes">homes</span> <span word="with">with</span> <span word="coal">coal</span> <span word="or">or</span> <span word="natural">natural</span> <span word="gas">gas</span>, <span word="we">we</span> <span word="release">release</span> <span word="a">a</span> <span word="large">large</span> <span word="amount">amount</span> <span word="of">of</span> <span word="greenhouse">greenhouse</span> <span word="gases">gases</span> <span word="into">into</span> <span word="the">the</span> <span word="atmosphere">atmosphere</span>.</p>
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