暑期备考六级优秀范文每日一背(12)
<p> <span word="Some">Some</span> <span word="recent">recent</span> <span word="developments">developments</span> <span word="in">in</span> <span word="the">the</span> <span word="computer">computer</span> <span word="industry">industry</span> <span word="make">make</span> <span word="scientists">scientists</span> <span word="predict">predict</span> <span word="that">that</span> <span word="the">the</span> <span word="gap">gap</span> <span word="between">between</span> <span word="human">human</span> <span word="beings">beings</span> <span word="and">and</span> <span word="machines">machines</span> <span word="will">will</span> <span word="be">be</span> <span word="closed">closed</span> <span word="about">about</span> <span word="the">the</span> <span word="year">year</span> 20000.</p><p> <span word="To">To</span> <span word="understand">understand</span> <span word="the">the</span> <span word="significance">significance</span> <span word="of">of</span> <span word="this">this</span> <span word="prediction">prediction</span> <span word="let">let</span> <span word="us">us</span> <span word="compare">compare</span> <span word="the">the</span> <span word="human">human</span> <span word="brain">brain</span> <span word="with">with</span> <span word="existing">existing</span> <span word="computers">computers</span>. <span word="The">The</span> <span word="brain">brain</span> <span word="consumes">consumes</span> <span word="electrical">electrical</span> <span word="energy">energy</span> <span word="at">at</span> <span word="the">the</span> <span word="rate">rate</span> <span word="of">of</span> 25 <span word="watts">watts</span> <span word="and">and</span> <span word="occupies">occupies</span> <span word="a">a</span> <span word="volume">volume</span> <span word="of">of</span> <span word="one">one</span> <span word="tenth">tenth</span> <span word="of">of</span> <span word="a">a</span> <span word="cubic">cubic</span> <span word="foot">foot</span>. <span word="The">The</span> <span word="brain">brain</span> <span word="houses">houses</span> <span word="between">between</span> 10 <span word="billion">billion</span> <span word="and">and</span> 100 <span word="billion">billion</span> <span word="items">items</span> <span word="of">of</span> <span word="information">information</span>. <span word="Every">Every</span> <span word="brain">brain</span> <span word="cell">cell</span> <span word="is">is</span> <span word="directly">directly</span> <span word="connected">connected</span> <span word="to">to</span> <span word="many">many</span> <span word="other">other</span> <span word="cells">cells</span>. <span word="As">As</span> <span word="a">a</span> <span word="result">result</span>, <span word="the">the</span> <span word="cells">cells</span> <span word="in">in</span> <span word="which">which</span> <span word="information">information</span> <span word="is">is</span> <span word="stored">stored</span> <span word="can">can</span> <span word="communicate">communicate</span> <span word="with">with</span> <span word="thousands">thousands</span> <span word="of">of</span> <span word="other">other</span> <span word="cells">cells</span>.</p><p> <span word="However">However</span>, <span word="the">the</span> <span word="computer">computer</span> <span word="consumes">consumes</span> 1000,000 <span word="watts">watts</span> <span word="of">of</span> <span word="electrical">electrical</span> <span word="power">power</span> <span word="and">and</span> <span word="occupies">occupies</span> <span word="hundreds">hundreds</span> <span word="of">of</span> <span word="cubic">cubic</span> <span word="feet">feet</span> <span word="of">of</span> <span word="space">space</span>. <span word="Its">Its</span> <span word="million">million</span> <span word="items">items</span> <span word="of">of</span> <span word="immediately">immediately</span> <span word="accessible">accessible</span> <span word="information">information</span>. <span word="In">In</span> <span word="contrast">contrast</span>, <span word="the">the</span> <span word="computer">computer</span> <span word="memory">memory</span> <span word="is">is</span> <span word="like">like</span> <span word="a">a</span> <span word="cell">cell</span> <span word="of">of</span> <span word="pigeonholes">pigeonholes</span>, <span word="with">with</span> <span word="no">no</span> <span word="thinking">thinking</span> <span word="capacity">capacity</span> <span word="and">and</span> <span word="no">no</span> <span word="connections">connections</span> <span word="elsewhere">elsewhere</span>.</p><p> <span word="In">In</span> <span word="a">a</span> <span word="word">word</span>, <span word="the">the</span> <span word="electronic">electronic</span> <span word="brains">brains</span> <span word="are">are</span> <span word="hopelessly">hopelessly</span> <span word="inadequate">inadequate</span> <span word="in">in</span> <span word="comparison">comparison</span> <span word="with">with</span> <span word="the">the</span> <span word="human">human</span> <span word="brains">brains</span>.</p><p> </p>
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