2017届高考英语二轮专题复习 阅读理解部分之限时训练（十九）
<p> 2017届高考英语二轮专题复习精品之</p><p> 阅读理解</p><p> <span word="Australian">Australian</span> <span word="scientists">scientists</span> <span word="are">are</span> <span word="trying">trying</span> <span word="to">to</span> <span word="give">give</span> <span word="kangaroo">kangaroo</span>-<span word="style">style</span> <span word="stomachs">stomachs</span> <span word="to">to</span> <span word="cattle">cattle</span> <span word="and">and</span> <span word="sheep">sheep</span> <span word="in">in</span> <span word="a">a</span> <span word="bid">bid</span> <span word="to">to</span> <span word="cut">cut</span> <span word="the">the</span> <span word="emission">emission</span> <span word="of">of</span> <span word="greenhouse">greenhouse</span> <span word="gases">gases</span> <span word="blamed">blamed</span> <span word="for">for</span> <span word="global">global</span> <span word="warming">warming</span>.</p><p> <span word="Thanks">Thanks</span> <span word="to">to</span> <span word="special">special</span> <span word="bacteria">bacteria</span> <span word="in">in</span> <span word="their">their</span> <span word="stomachs">stomachs</span>, <span word="kangaroo">kangaroo</span> <span word="farts">farts</span> <span word="contain">contain</span> <span word="no">no</span> <span word="methane">methane</span>（甲烷）<span word="and">and</span> <span word="scientists">scientists</span> <span word="want">want</span> <span word="to">to</span> <span word="transfer">transfer</span> <span word="that">that</span> <span word="bacteria">bacteria</span> <span word="to">to</span> <span word="cattle">cattle</span> <span word="and">and</span> <span word="sheep">sheep</span> <span word="who">who</span> <span word="emit">emit</span> <span word="large">large</span> <span word="quantities">quantities</span> <span word="of">of</span> <span word="the">the</span> <span word="harmful">harmful</span> <span word="gas">gas</span>.</p><p> <span word="While">While</span> <span word="the">the</span> <span word="usual">usual</span> <span word="image">image</span> <span word="of">of</span> <span word="greenhouse">greenhouse</span> <span word="gas">gas</span> <span word="pollution">pollution</span> <span word="is">is</span> <span word="a">a</span> <span word="billowing">billowing</span> <span word="smokestack">smokestack</span> <span word="pushing">pushing</span> <span word="out">out</span> <span word="carbon">carbon</span> <span word="dioxide">dioxide</span>, <span word="livestock">livestock</span> <span word="passing">passing</span> <span word="wind">wind</span> <span word="contribute">contribute</span> <span word="a">a</span> <span word="surprisingly">surprisingly</span> <span word="high">high</span> <span word="percentage">percentage</span> <span word="of">of</span> <span word="total">total</span> <span word="emissions">emissions</span> <span word="in">in</span> <span word="some">some</span> <span word="countries">countries</span>.</p><p> "<span word="Fourteen">Fourteen</span> <span word="percent">percent</span> <span word="of">of</span> <span word="emissions">emissions</span> <span word="from">from</span> <span word="all">all</span> <span word="sources">sources</span> <span word="in">in</span> <span word="Australia">Australia</span> <span word="is">is</span> <span word="from">from</span> <span word="enteric">enteric</span> <span word="methane">methane</span> <span word="from">from</span> <span word="cattle">cattle</span> <span word="and">and</span> <span word="sheep">sheep</span>," <span word="said">said</span> <span word="Athol">Athol</span> <span word="Klieve">Klieve</span>, <span word="a">a</span> <span word="senior">senior</span> <span word="research">research</span> <span word="scientist">scientist</span> <span word="with">with</span> <span word="the">the</span> <span word="Queensland">Queensland</span> <span word="state">state</span> <span word="government">government</span>.</p><p> "<span word="And">And</span> <span word="if">if</span> <span word="you">you</span> <span word="look">look</span> <span word="at">at</span> <span word="another">another</span> <span word="country">country</span> <span word="such">such</span> <span word="as">as</span> <span word="New">New</span> <span word="Zealand">Zealand</span>, <span word="which">which</span> <span word="has">has</span> <span word="got">got</span> <span word="a">a</span> <span word="much">much</span> <span word="higher">higher</span> <span word="agricultural">agricultural</span> <span word="base">base</span>, <span word="they">they</span>'<span word="re">re</span> <span word="actually">actually</span> <span word="up">up</span> <span word="around">around</span> 50 <span word="percent">percent</span>," <span word="he">he</span> <span word="said">said</span>.</p><p> <span word="Researchers">Researchers</span> <span word="say">say</span> <span word="the">the</span> <span word="bacteria">bacteria</span> <span word="also">also</span> <span word="makes">makes</span> <span word="the">the</span> <span word="digestive">digestive</span> <span word="process">process</span> <span word="much">much</span> <span word="more">more</span> <span word="efficient">efficient</span> <span word="and">and</span> <span word="could">could</span> <span word="potentially">potentially</span> <span word="save">save</span> <span word="millions">millions</span> <span word="of">of</span> <span word="dollars">dollars</span> <span word="in">in</span> <span word="feed">feed</span> <span word="costs">costs</span> <span word="for">for</span> <span word="farmers">farmers</span>.</p><p> <span word="But">But</span> <span word="it">it</span> <span word="will">will</span> <span word="take">take</span> <span word="researchers">researchers</span> <span word="at">at</span> <span word="least">least</span> <span word="three">three</span> <span word="years">years</span> <span word="to">to</span> <span word="isolate">isolate</span> <span word="the">the</span> <span word="bacteria">bacteria</span>, <span word="before">before</span> <span word="they">they</span> <span word="can">can</span> <span word="even">even</span> <span word="start">start</span> <span word="to">to</span> <span word="develop">develop</span> <span word="a">a</span> <span word="way">way</span> <span word="of">of</span> <span word="transferring">transferring</span> <span word="it">it</span> <span word="to">to</span> <span word="cattle">cattle</span> <span word="and">and</span> <span word="sheep">sheep</span>.</p><p> <span word="Another">Another</span> <span word="group">group</span> <span word="of">of</span> <span word="scientists">scientists</span>, <span word="meanwhile">meanwhile</span>, <span word="has">has</span> <span word="suggested">suggested</span> <span word="Australians">Australians</span> <span word="should">should</span> <span word="farm">farm</span> <span word="fewer">fewer</span> <span word="cattle">cattle</span> <span word="and">and</span> <span word="sheep">sheep</span> <span word="and">and</span> <span word="just">just</span> <span word="eat">eat</span> <span word="more">more</span> <span word="kangaroos">kangaroos</span>.</p>
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