【专四听力的满分突破】瞄准器
<p> 选材规范、标准演练;循序渐进、梯度提升;题量丰富、有效提高;技巧同步、一语中的;缩略速记，全面覆盖。 注意直接听写正文</p><p> <span word="Sight">Sight</span> <span word="is">is</span> <span word="very">very</span> <span word="effective">effective</span> <span word="at">at</span> <span word="giving">giving</span> <span word="exact">exact</span> <span word="information">information</span> <span word="over">over</span> <span word="considerable">considerable</span> <span word="distances">distances</span>. <span word="If">If</span> <span word="the">the</span> <span word="viewed">viewed</span> <span word="object">object</span> <span word="is">is</span> <span word="moving">moving</span>, <span word="it">it</span> <span word="can">can</span> <span word="tell">tell</span> <span word="us">us</span> <span word="much">much</span> <span word="about">about</span> <span word="the">the</span> <span word="speed">speed</span> <span word="and">and</span> <span word="direction">direction</span> <span word="of">of</span> <span word="this">this</span> <span word="movement">movement</span> <span word="as">as</span> <span word="well">well</span> <span word="as">as</span> <span word="allowing">allowing</span> <span word="us">us</span> <span word="to">to</span> <span word="identify">identify</span> <span word="it">it</span>. <span word="For">For</span> <span word="all">all</span> <span word="this">this</span> <span word="to">to</span> <span word="happen">happen</span> <span word="we">we</span> <span word="need">need</span> <span word="to">to</span> <span word="see">see</span> <span word="it">it</span>. <span word="This">This</span> <span word="means">means</span> <span word="our">our</span> <span word="eyes">eyes</span> <span word="have">have</span> <span word="to">to</span> <span word="be">be</span> <span word="looking">looking</span> <span word="in">in</span> <span word="the">the</span> <span word="correct">correct</span> <span word="direction">direction</span>. <span word="Light">Light</span> <span word="waves">waves</span> <span word="do">do</span> <span word="not">not</span> <span word="go">go</span> <span word="around">around</span> <span word="objects">objects</span> <span word="very">very</span> <span word="well">well</span>, <span word="so">so</span> <span word="we">we</span> <span word="cannot">cannot</span> <span word="see">see</span> <span word="an">an</span> <span word="object">object</span> <span word="if">if</span> <span word="it">it</span> <span word="is">is</span> <span word="hidden">hidden</span> <span word="behind">behind</span> <span word="another">another</span> <span word="object">object</span>. <span word="This">This</span> <span word="does">does</span> <span word="put">put</span> <span word="limits">limits</span> <span word="on">on</span> <span word="what">what</span> <span word="sight">sight</span> <span word="can">can</span> <span word="achieve">achieve</span>. <span word="Sight">Sight</span> <span word="is">is</span> <span word="an">an</span> <span word="easy">easy</span> <span word="sense">sense</span> <span word="to">to</span> <span word="use">use</span>, <span word="because">because</span> <span word="during">during</span> <span word="the">the</span> <span word="day">day</span> <span word="we">we</span> <span word="are">are</span> <span word="surrounded">surrounded</span> <span word="by">by</span> <span word="light">light</span> <span word="supplied">supplied</span> <span word="by">by</span> <span word="the">the</span> <span word="sun">sun</span>. <span word="This">This</span> <span word="light">light</span> <span word="bounces">bounces</span> <span word="off">off</span> <span word="things">things</span> <span word="and">and</span> <span word="brings">brings</span> <span word="us">us</span> <span word="information">information</span> <span word="about">about</span> <span word="them">them</span>. <span word="However">However</span>, <span word="when">when</span> <span word="the">the</span> <span word="sun">sun</span> <span word="sets">sets</span> <span word="on">on</span> <span word="a">a</span> <span word="cloudy">cloudy</span> <span word="night">night</span>, <span word="the">the</span> <span word="light">light</span> <span word="is">is</span> <span word="mostly">mostly</span> <span word="gone">gone</span>, <span word="and">and</span> <span word="then">then</span> <span word="vision">vision</span> <span word="shall">shall</span> <span word="become">become</span> <span word="less">less</span> <span word="useful">useful</span> <span word="as">as</span> <span word="a">a</span> <span word="sense">sense</span>.</p><p> </p>
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