英语六级考试快读阅读练习及答案（7）
<p> <span word="The">The</span> <span word="Fish">Fish</span> <span word="and">and</span> <span word="the">the</span> <span word="Forest">Forest</span></p><p> <span word="Few">Few</span> <span word="wildlife">wildlife</span> <span word="spectacles">spectacles</span> <span word="in">in</span> <span word="North">North</span> <span word="America">America</span> <span word="compare">compare</span> <span word="to">to</span> <span word="the">the</span> <span word="sight">sight</span> <span word="of">of</span> <span word="bears">bears</span> <span word="gathered">gathered</span> <span word="along">along</span> <span word="streams">streams</span> <span word="and">and</span> <span word="rivers">rivers</span> <span word="to">to</span> <span word="scoop">scoop</span> <span word="up">up</span> <span word="spawning">spawning</span> <span word="salmon">salmon</span>. <span word="The">The</span> <span word="hungry">hungry</span> <span word="bears">bears</span> <span word="have">have</span> <span word="long">long</span> <span word="attracted">attracted</span> <span word="attention">attention</span>, <span word="particularly">particularly</span> <span word="from">from</span> <span word="fishery">fishery</span> <span word="managers">managers</span>, <span word="who">who</span> <span word="in">in</span> <span word="the">the</span> <span word="late">late</span> 1940<span word="s">s</span> <span word="proposed">proposed</span> <span word="their">their</span> <span word="broadscale">broadscale</span> <span word="culling">culling</span> <span word="in">in</span> <span word="Alaska">Alaska</span> <span word="to">to</span> <span word="reduce">reduce</span> <span word="the">the</span> <span word="economic">economic</span> <span word="damage">damage</span> <span word="the">the</span> <span word="predators">predators</span>(掠夺者, 食肉动物)<span word="might">might</span> <span word="be">be</span> <span word="wreaking">wreaking</span> <span word="on">on</span> <span word="salmon">salmon</span> <span word="populations">populations</span>. <span word="In">In</span> <span word="fact">fact</span>, <span word="several">several</span> <span word="sensationalized">sensationalized</span> <span word="reports">reports</span> <span word="implied">implied</span> <span word="that">that</span> <span word="Alaska">Alaska</span> <span word="might">might</span> <span word="fall">fall</span> <span word="into">into</span> <span word="financial">financial</span> <span word="and">and</span> <span word="social">social</span> <span word="collapse">collapse</span> <span word="unless">unless</span> <span word="the">the</span> <span word="bear">bear</span> <span word="populations">populations</span> <span word="were">were</span> <span word="controlled">controlled</span>.</p><p> <span word="Fortunately">Fortunately</span>, <span word="common">common</span> <span word="sense">sense</span> <span word="came">came</span> <span word="to">to</span> <span word="the">the</span> <span word="rescue">rescue</span>, <span word="and">and</span> <span word="the">the</span> <span word="bear">bear</span> <span word="cull">cull</span> <span word="never">never</span> <span word="came">came</span> <span word="about">about</span>. <span word="Scientific">Scientific</span> <span word="interest">interest</span> <span word="in">in</span> <span word="the">the</span> <span word="interaction">interaction</span> <span word="between">between</span> <span word="bears">bears</span> <span word="and">and</span> <span word="salmon">salmon</span> <span word="died">died</span> <span word="down">down</span>. <span word="Recently">Recently</span>, <span word="however">however</span>, <span word="researchers">researchers</span> <span word="have">have</span> <span word="discovered">discovered</span> <span word="a">a</span> <span word="new">new</span> <span word="facet">facet</span> <span word="of">of</span> <span word="this">this</span> <span word="relationship">relationship</span>, <span word="and">and</span> <span word="the">the</span> <span word="finding">finding</span> <span word="has">has</span> <span word="radically">radically</span> <span word="changed">changed</span> <span word="notions">notions</span> <span word="about">about</span> <span word="how">how</span> <span word="the">the</span> <span word="salmon">salmon</span>, <span word="the">the</span> <span word="streams">streams</span> <span word="and">and</span> <span word="the">the</span> <span word="bordering">bordering</span> <span word="woodlands">woodlands</span> <span word="affect">affect</span> <span word="one">one</span> <span word="another">another</span>-<span word="and">and</span>, <span word="naturally">naturally</span>, <span word="notions">notions</span> <span word="about">about</span> <span word="how">how</span> <span word="they">they</span> <span word="should">should</span> <span word="be">be</span> <span word="managed">managed</span>.</p><p> <span word="Our">Our</span> <span word="own">own</span> <span word="contributions">contributions</span> <span word="to">to</span> <span word="this">this</span> <span word="work">work</span> <span word="have">have</span> <span word="spanned">spanned</span> <span word="more">more</span> <span word="than">than</span> <span word="a">a</span> <span word="decade">decade</span>. <span word="During">During</span> <span word="this">this</span> <span word="time">time</span> <span word="we">we</span> <span word="have">have</span> <span word="walked">walked</span> <span word="hundreds">hundreds</span> <span word="of">of</span> <span word="kilometers">kilometers</span> <span word="along">along</span> <span word="salmon">salmon</span> <span word="streams">streams</span>, <span word="examined">examined</span> <span word="tens">tens</span> <span word="of">of</span> <span word="thousands">thousands</span> <span word="of">of</span> <span word="salmon">salmon</span> <span word="carcasses">carcasses</span> , <span word="and">and</span> <span word="had">had</span> <span word="too">too</span> <span word="many">many</span> <span word="close">close</span> <span word="encounters">encounters</span> <span word="with">with</span> <span word="agitated">agitated</span>(激动的，不安的)<span word="bears">bears</span>. <span word="Our">Our</span> <span word="findings">findings</span> <span word="surprised">surprised</span> <span word="us">us</span>: <span word="bears">bears</span> <span word="actually">actually</span> <span word="fertilize">fertilize</span> <span word="the">the</span> <span word="forests">forests</span>, <span word="nourishing">nourishing</span> <span word="them">them</span> <span word="by">by</span> <span word="discarding">discarding</span> <span word="partially">partially</span> <span word="eaten">eaten</span> <span word="salmon">salmon</span> <span word="carcasses">carcasses</span>. <span word="Not">Not</span> <span word="intentionally">intentionally</span>, <span word="of">of</span> <span word="course">course</span>, <span word="but">but</span> <span word="the">the</span> <span word="end">end</span> <span word="result">result</span> <span word="is">is</span> <span word="that">that</span> <span word="these">these</span> <span word="large">large</span> <span word="predators">predators</span> <span word="bring">bring</span> <span word="valuable">valuable</span> <span word="marine">marine</span>-<span word="derived">derived</span> <span word="nutrients">nutrients</span>, <span word="in">in</span> <span word="the">the</span> <span word="form">form</span> <span word="of">of</span> <span word="salmon">salmon</span> <span word="tissue">tissue</span>, <span word="to">to</span> <span word="the">the</span> <span word="streamside">streamside</span> <span word="woodlands">woodlands</span>, <span word="where">where</span> <span word="the">the</span> <span word="uneaten">uneaten</span> <span word="fish">fish</span> <span word="provide">provide</span> <span word="sustenance">sustenance</span>(食物, 生计)<span word="for">for</span> <span word="an">an</span> <span word="array">array</span> <span word="of">of</span> <span word="animals">animals</span> <span word="and">and</span> <span word="plants">plants</span>. <span word="The">The</span> <span word="flow">flow</span> <span word="of">of</span> <span word="nutrients">nutrients</span> <span word="from">from</span> <span word="ocean">ocean</span> <span word="to">to</span> <span word="streams">streams</span> <span word="to">to</span> <span word="woodlands">woodlands</span> <span word="is">is</span> <span word="an">an</span> <span word="unexpected">unexpected</span>, <span word="even">even</span> <span word="unprecedented">unprecedented</span>, <span word="uphill">uphill</span> <span word="direction">direction</span> <span word="for">for</span> <span word="resources">resources</span> <span word="to">to</span> <span word="travel">travel</span>. <span word="A">A</span> <span word="close">close</span> <span word="look">look</span> <span word="at">at</span> <span word="the">the</span> <span word="life">life</span> <span word="history">history</span> <span word="of">of</span> <span word="the">the</span> <span word="predator">predator</span> <span word="and">and</span> <span word="its">its</span> <span word="favorite">favorite</span> <span word="prey">prey</span> <span word="helped">helped</span> <span word="us">us</span> <span word="and">and</span> <span word="other">other</span> <span word="scientists">scientists</span> <span word="piece">piece</span> <span word="together">together</span> <span word="how">how</span> <span word="this">this</span> <span word="unusual">unusual</span> <span word="transfer">transfer</span> <span word="system">system</span> <span word="operates">operates</span>.</p>
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