中考易混词汇辨析：as/ when/ while
<p>(1)<span word="as">as</span> 是连词，意思是"当……的时候，一面……一面"，(强调同时，一般连续时间不长)，如：</p><p><span word="As">As</span> <span word="we">we</span> <span word="were">were</span> <span word="talking">talking</span> <span word="about">about</span> <span word="Titanic">Titanic</span>, <span word="our">our</span> <span word="teacher">teacher</span> <span word="came">came</span> <span word="in">in</span>. 正当我们谈论"泰坦尼克号"这部电影时，教师进来了。</p><p><span word="The">The</span> <span word="students">students</span> <span word="sing">sing</span> <span word="as">as</span> <span word="they">they</span> <span word="go">go</span> <span word="along">along</span>. 学生们边走边唱。</p><p>(2)<span word="When">When</span>和<span word="as">as</span>一样都是连词，注意它们的不同。如<span word="when">when</span>"当……的时候"(一般表示动作紧接着发生);</p><p>"那时"(等立连词，前有逗号分开)<span word="I">I</span> <span word="stayed">stayed</span> <span word="till">till</span> <span word="sunset">sunset</span>, <span word="when">when</span> <span word="it">it</span> <span word="began">began</span> <span word="to">to</span> <span word="rain">rain</span>. 我一直呆到太阳下山，那时天开始下雨了。</p><p>(3)<span word="while">while</span>是"当……时候;和……同时"(强调同时发生，一般连续时间较长)例如：<span word="While">While</span> <span word="I">I</span> <span word="was">was</span> <span word="watching">watching</span> <span word="TV">TV</span>, <span word="he">he</span> <span word="was">was</span> <span word="reading">reading</span>. 当我在看电视的时候，他正在看书。<span word="While">While</span> <span word="there">there</span> <span word="is">is</span> <span word="life">life</span>, <span word="there">there</span> <span word="is">is</span> <span word="hope">hope</span>. 有生命就有希望。</p>
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