英语阅读练习八：多媒体到底意味着什么
<p> <span word="What">What</span> <span word="Does">Does</span> <span word="the">the</span> <span word="Multimedia">Multimedia</span> <span word="Actually">Actually</span> <span word="Mean">Mean</span>?</p><p> <span word="Literally">Literally</span>,<span word="multimedia">multimedia</span> <span word="means">means</span> <span word="two">two</span> <span word="or">or</span> <span word="more">more</span> <span word="media">media</span>.<span word="If">If</span> <span word="the">the</span> <span word="publisher">publisher</span> <span word="of">of</span> <span word="this">this</span> <span word="book">book</span> <span word="wanted">wanted</span> <span word="to">to</span> <span word="join">join</span> <span word="the">the</span> <span word="current">current</span> <span word="hype">hype</span> <span word="about">about</span> <span word="multimedia">multimedia</span>,<span word="he">he</span> <span word="could">could</span> <span word="advertise">advertise</span> <span word="the">the</span> <span word="book">book</span> <span word="as">as</span> <span word="using">using</span> <span word="multimedia">multimedia</span> <span word="technology">technology</span>.<span word="After">After</span> <span word="all">all</span>,<span word="it">it</span> <span word="contains">contains</span> <span word="two">two</span> <span word="media">media</span>:<span word="text">text</span> <span word="and">and</span> <span word="graphics">graphics</span>(<span word="the">the</span> <span word="figures">figures</span>).<span word="Nevertheless">Nevertheless</span>,<span word="when">when</span> <span word="most">most</span> <span word="people">people</span> <span word="refer">refer</span> <span word="to">to</span> <span word="multimedia">multimedia</span>,<span word="they">they</span> <span word="generally">generally</span> <span word="mean">mean</span> <span word="the">the</span> <span word="combination">combination</span> <span word="of">of</span> <span word="two">two</span> <span word="or">or</span> <span word="more">more</span> <span word="continuous">continuous</span> <span word="media">media</span>,<span word="that">that</span> <span word="is">is</span>,<span word="media">media</span> <span word="have">have</span> <span word="to">to</span> <span word="be">be</span> <span word="played">played</span> <span word="during">during</span> <span word="some">some</span> <span word="well">well</span>-<span word="defined">defined</span> <span word="timed">timed</span> <span word="times">times</span> <span word="interval">interval</span>,<span word="usually">usually</span> <span word="with">with</span> <span word="the">the</span> <span word="users">users</span> <span word="interaction">interaction</span>.<span word="In">In</span> <span word="practice">practice</span>, <span word="the">the</span> <span word="two">two</span> <span word="media">media</span> <span word="are">are</span> <span word="normally">normally</span> <span word="audio">audio</span> <span word="and">and</span> <span word="video">video</span>,<span word="that">that</span> <span word="is">is</span>,<span word="sound">sound</span> <span word="plus">plus</span> <span word="moving">moving</span> <span word="pictures">pictures</span>.</p><p> <span word="In">In</span> <span word="the">the</span> <span word="multimedia">multimedia</span> <span word="environment">environment</span>,<span word="we">we</span> <span word="have">have</span> <span word="graphics">graphics</span> <span word="and">and</span> <span word="text">text</span> <span word="at">at</span> <span word="the">the</span> <span word="same">same</span> <span word="time">time</span>,<span word="we">we</span> <span word="can">can</span> <span word="also">also</span> <span word="add">add</span> <span word="the">the</span> <span word="photograph">photograph</span>,<span word="animation">animation</span>,<span word="good">good</span>-<span word="quality">quality</span> <span word="sound">sound</span>,<span word="and">and</span> <span word="full">full</span> <span word="motion">motion</span> <span word="video">video</span>.<span word="All">All</span> <span word="of">of</span> <span word="the">the</span> <span word="technologies">technologies</span> <span word="make">make</span> <span word="computers">computers</span> <span word="more">more</span> <span word="interesting">interesting</span> <span word="and">and</span> <span word="much">much</span> <span word="easier">easier</span> <span word="to">to</span> <span word="use">use</span>.<span word="For">For</span> <span word="example">example</span>,<span word="a">a</span> <span word="multimedia">multimedia</span> <span word="program">program</span> <span word="can">can</span> <span word="play">play</span> <span word="a">a</span> <span word="segment">segment</span> <span word="of">of</span> <span word="movie">movie</span>：<span word="a">a</span> <span word="cat">cat</span> <span word="was">was</span> <span word="playing">playing</span> <span word="a">a</span> <span word="reel">reel</span> <span word="of">of</span> <span word="thread">thread</span>,<span word="with">with</span> <span word="mewing">mewing</span> <span word="The">The</span> <span word="tableau">tableau</span> <span word="can">can</span> <span word="a">a</span> <span word="be">be</span> <span word="immediately">immediately</span> <span word="captured">captured</span> <span word="and">and</span> <span word="pasted">pasted</span> <span word="to">to</span> <span word="a">a</span> <span word="text">text</span> <span word="at">at</span> <span word="the">the</span> <span word="side">side</span> <span word="of">of</span> <span word="a">a</span> <span word="paragraph">paragraph</span> <span word="of">of</span> <span word="words">words</span>.</p><p> <span word="CD">CD</span>-<span word="ROM">ROM</span></p><p> <span word="CD">CD</span>-<span word="ROM">ROM</span> is an optical technology that is used to make compact disks for CD stereo systems;it has now been adapted to store data for computers.CD disk is an optical disc,on which data is recorded as a set of dips in the surface.When a laser beam shines across the dips,the reflected distortion represents the data.Optical disc has a 600 megabyte capacity and are well suited for the computer applications needing the vast storage.The playback effect of optical discs for music is very perfect,no hiss and crackle as with other photo-records.A computer system must have a CD driver that is designed to read the disks and translate the data into a form it can process.CD disks can store huge volumes of data and are very useful for reference material an encyclopedia,for example.However,as the name(read-only memory)implies,CD disks cannot be written on or changed in any way.</p>
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