2016届高考英语一轮复习课时作业：语言朋友（11）（北师大版）
<p> 语言朋友(11)</p><p> <span word="For">For</span> <span word="years">years</span> <span word="we">we</span> <span word="have">have</span> <span word="been">been</span> <span word="dieting">dieting</span> <span word="strictly">strictly</span> <span word="after">after</span> <span word="the">the</span> <span word="year">year</span><span word="end">end</span> <span word="overeating">overeating</span>, <span word="afraid">afraid</span> <span word="that">that</span> <span word="when">when</span> <span word="summer">summer</span> <span word="comes">comes</span>, <span word="the">the</span> <span word="bigger">bigger</span> <span word="size">size</span> <span word="we">we</span> <span word="have">have</span> <span word="accumulated">accumulated</span> <span word="will">will</span> <span word="betray">betray</span> <span word="how">how</span> <span word="we">we</span> <span word="ate">ate</span>.<span word="Now">Now</span> <span word="scientists">scientists</span> <span word="say">say</span>, <span word="it">it</span>'<span word="s">s</span> <span word="a">a</span> <span word="little">little</span> <span word="bug">bug</span> <span word="that">that</span> <span word="causes">causes</span> <span word="obesity">obesity</span>(肥胖)．</p><p> <span word="As">As</span> <span word="the">the</span> <span word="holiday">holiday</span> <span word="season">season</span> <span word="with">with</span> <span word="its">its</span> <span word="abundant">abundant</span> <span word="feasting">feasting</span> <span word="arrives">arrives</span>, <span word="millions">millions</span> <span word="of">of</span> <span word="food">food</span> <span word="lovers">lovers</span> <span word="are">are</span> <span word="keeping">keeping</span> <span word="an">an</span> <span word="eye">eye</span> <span word="on">on</span> <span word="their">their</span> <span word="figures">figures</span>.<span word="But">But</span> <span word="scientists">scientists</span> <span word="have">have</span> <span word="found">found</span> <span word="that">that</span> <span word="weight">weight</span> <span word="gain">gain</span> <span word="is">is</span> <span word="not">not</span> <span word="about">about</span> <span word="too">too</span> <span word="much">much</span> <span word="Christmas">Christmas</span> <span word="turkey">turkey</span> <span word="or">or</span> <span word="hot">hot</span> <span word="chocolates">chocolates</span>, <span word="but">but</span> <span word="some">some</span> <span word="bacteria">bacteria</span> <span word="in">in</span> <span word="your">your</span> <span word="guts">guts</span>(肠)．</p><p> <span word="Chinese">Chinese</span> <span word="scientists">scientists</span> <span word="recently">recently</span> <span word="discovered">discovered</span> <span word="a">a</span> <span word="type">type</span> <span word="of">of</span> <span word="bacteria">bacteria</span> <span word="in">in</span> <span word="guts">guts</span> <span word="that">that</span> <span word="may">may</span> <span word="be">be</span> <span word="to">to</span> <span word="blame">blame</span> <span word="for">for</span> <span word="obesity">obesity</span>.</p><p> <span word="A">A</span> <span word="research">research</span> <span word="team">team</span> <span word="led">led</span> <span word="by">by</span> <span word="Zhao">Zhao</span> <span word="Liping">Liping</span>, <span word="a">a</span> <span word="professor">professor</span> <span word="in">in</span> <span word="Shanghai">Shanghai</span>, <span word="has">has</span> <span word="identified">identified</span> <span word="a">a</span> <span word="precise">precise</span> <span word="link">link</span> <span word="between">between</span> <span word="a">a</span> <span word="particular">particular</span> <span word="kind">kind</span> <span word="of">of</span> <span word="bacteria">bacteria</span> <span word="and">and</span> <span word="unusual">unusual</span> <span word="weight">weight</span> <span word="gain">gain</span>.</p><p> “<span word="The">The</span> <span word="endotoxin">endotoxin</span>(内毒素) <span word="released">released</span> <span word="by">by</span> <span word="the">the</span> <span word="bacterium">bacterium</span> <span word="can">can</span> <span word="activate">activate</span>(激活) <span word="a">a</span> <span word="gene">gene</span> <span word="that">that</span> <span word="helps">helps</span> <span word="produce">produce</span> <span word="fat">fat</span>.<span word="And">And</span> <span word="it">it</span> <span word="also">also</span> <span word="deactivates">deactivates</span> <span word="a">a</span> <span word="gene">gene</span> <span word="that">that</span> <span word="consumes">consumes</span> <span word="fat">fat</span>，” <span word="Zhao">Zhao</span> <span word="says">says</span>.</p><p> <span word="Scientists">Scientists</span> <span word="have">have</span> <span word="long">long</span> <span word="believed">believed</span> <span word="that">that</span> <span word="microscopic">microscopic</span> <span word="organisms">organisms</span> <span word="in">in</span> <span word="the">the</span> <span word="gut">gut</span>, <span word="microbiota">microbiota</span>, <span word="may">may</span> <span word="play">play</span> <span word="a">a</span> <span word="very">very</span> <span word="important">important</span> <span word="role">role</span> <span word="in">in</span> <span word="weight">weight</span> <span word="gain">gain</span>, <span word="but">but</span> <span word="they">they</span> <span word="had">had</span> <span word="never">never</span> <span word="been">been</span> <span word="able">able</span> <span word="to">to</span> <span word="prove">prove</span> <span word="it">it</span>.</p><p> <span word="In">In</span> 2004, <span word="American">American</span> <span word="microbiologist">microbiologist</span> <span word="Jeffrey">Jeffrey</span> <span word="Gordon">Gordon</span> <span word="and">and</span> <span word="his">his</span> <span word="colleagues">colleagues</span> <span word="discovered">discovered</span> <span word="a">a</span> <span word="general">general</span> <span word="link">link</span> <span word="between">between</span> <span word="obesity">obesity</span> <span word="and">and</span> <span word="gut">gut</span> <span word="microbiota">microbiota</span> <span word="in">in</span> <span word="mice">mice</span>.</p><p> <span word="While">While</span> <span word="a">a</span> <span word="link">link</span> <span word="was">was</span> <span word="believed">believed</span> <span word="to">to</span> <span word="exist">exist</span>, <span word="proving">proving</span> <span word="it">it</span> <span word="was">was</span> <span word="another">another</span> <span word="matter">matter</span>.</p><p> “<span word="The">The</span> <span word="list">list</span> <span word="of">of</span> <span word="diseases">diseases</span> <span word="that">that</span> <span word="they">they</span> <span word="may">may</span> <span word="play">play</span> <span word="a">a</span> <span word="role">role</span> <span word="in">in</span> <span word="is">is</span> <span word="just">just</span> <span word="growing">growing</span> <span word="and">and</span> <span word="growing">growing</span>，” <span word="says">says</span> <span word="Lita">Lita</span> <span word="Proctor">Proctor</span>, <span word="director">director</span> <span word="of">of</span> <span word="the">the</span> <span word="US">US</span> <span word="National">National</span> <span word="Institutes">Institutes</span> <span word="of">of</span> <span word="Health">Health</span>.“<span word="But">But</span> <span word="the">the</span> <span word="problem">problem</span> <span word="is">is</span> <span word="that">that</span> <span word="we">we</span>'<span word="re">re</span> <span word="only">only</span> <span word="able">able</span> <span word="to">to</span> <span word="look">look</span> <span word="at">at</span> <span word="associations">associations</span> <span word="and">and</span> <span word="aren">aren</span>'<span word="t">t</span> <span word="yet">yet</span> <span word="able">able</span> <span word="to">to</span> <span word="conduct">conduct</span> <span word="cause">cause</span><span word="and">and</span><span word="effect">effect</span> <span word="studies">studies</span>.”</p>
页:
[1]