学习外语好处多：双语让你更敏锐
<p><span word="The">The</span> <span word="ability">ability</span> <span word="to">to</span> <span word="speak">speak</span> <span word="two">two</span> <span word="languages">languages</span> <span word="can">can</span> <span word="make">make</span> <span word="bilingual">bilingual</span> <span word="people">people</span> <span word="better">better</span> <span word="able">able</span> <span word="to">to</span> <span word="pay">pay</span> <span word="attention">attention</span> <span word="than">than</span> <span word="those">those</span> <span word="who">who</span> <span word="can">can</span> <span word="only">only</span> <span word="speak">speak</span> <span word="one">one</span> <span word="language">language</span>, <span word="a">a</span> <span word="new">new</span> <span word="study">study</span> <span word="suggests">suggests</span>.</p><p>一项新研究结果显示，同只能讲一种语言的人相比，能说两种语言的双语者能够更好地集中注意力。</p><p><span word="Scientists">Scientists</span> <span word="have">have</span> <span word="long">long</span> <span word="suspected">suspected</span> <span word="that">that</span> <span word="some">some</span> <span word="enhanced">enhanced</span> <span word="mental">mental</span> <span word="abilities">abilities</span> <span word="might">might</span> <span word="be">be</span> <span word="tied">tied</span> <span word="to">to</span> <span word="structural">structural</span> <span word="differences">differences</span> <span word="in">in</span> <span word="brain">brain</span> <span word="networks">networks</span> <span word="shaped">shaped</span> <span word="by">by</span> <span word="learning">learning</span> <span word="more">more</span> <span word="than">than</span> <span word="one">one</span> <span word="language">language</span>, <span word="just">just</span> <span word="as">as</span> <span word="a">a</span> <span word="musician">musician</span>’<span word="s">s</span> <span word="brain">brain</span> <span word="can">can</span> <span word="be">be</span> <span word="altered">altered</span> <span word="by">by</span> <span word="the">the</span> <span word="long">long</span> <span word="hours">hours</span> <span word="of">of</span> <span word="practice">practice</span> <span word="needed">needed</span> <span word="to">to</span> <span word="master">master</span> <span word="an">an</span> <span word="instrument">instrument</span>.</p><p>长期以来，科学家们一直怀疑，一些人思维能力的提升可能与学习多种语言的过程中形成的大脑网络结构差异有关，正如音乐家们为掌握一种乐器而进行长时间练习之后，其大脑结构会发生改变。</p><p><span word="Now">Now</span>, <span word="in">in</span> <span word="a">a</span> <span word="study">study</span> <span word="published">published</span> <span word="in">in</span> <span word="the">the</span> <span word="Poceeding">Poceeding</span> <span word="of">of</span> <span word="the">the</span> <span word="National">National</span> <span word="Academy">Academy</span> <span word="of">of</span> <span word="Sciences">Sciences</span>, <span word="researchers">researchers</span> <span word="at">at</span> <span word="Northwestern">Northwestern</span> <span word="University">University</span> <span word="for">for</span> <span word="the">the</span> <span word="first">first</span> <span word="time">time</span> <span word="have">have</span> <span word="documented">documented</span> <span word="differences">differences</span> <span word="in">in</span> <span word="how">how</span> <span word="the">the</span> <span word="bilingual">bilingual</span> <span word="brain">brain</span> <span word="processes">processes</span> <span word="the">the</span> <span word="sounds">sounds</span> <span word="of">of</span> <span word="speech">speech</span>, <span word="compared">compared</span> <span word="with">with</span> <span word="those">those</span> <span word="who">who</span> <span word="speak">speak</span> <span word="a">a</span> <span word="single">single</span> <span word="language">language</span>, <span word="in">in</span> <span word="ways">ways</span> <span word="that">that</span> <span word="make">make</span> <span word="it">it</span> <span word="better">better</span> <span word="at">at</span> <span word="picking">picking</span> <span word="out">out</span> <span word="a">a</span> <span word="spoken">spoken</span> <span word="syllable">syllable</span>, <span word="even">even</span> <span word="when">when</span> <span word="it">it</span> <span word="is">is</span> <span word="buried">buried</span> <span word="in">in</span> <span word="a">a</span> <span word="babble">babble</span> <span word="of">of</span> <span word="voices">voices</span>.</p><p>如今，发表在《美国国家科学院院刊》上的一项研究结果显示，美国西北大学(<span word="Northwestern">Northwestern</span> <span word="University">University</span>)的研究者首次证明了双语者的大脑在处理语音时的不同之处。与讲单一语言的人相比，双语者更善于识别人们说出的音节，即使这些音节被淹没在嘈杂声音里。</p>
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