2016年中考英语词组辨析：as/ because/ for/ since
<p> Ⅰ. 这三个词都可以用作连词，表“原因、理由” 但有区别：</p><p> Ⅱ. <span word="as">as</span> “因为、既然”表示的原因或理由是明显的。语意不如<span word="because">because</span>强。当理由是明显的，或者被认为是已知的时，则以用<span word="as">as</span> 为好。如：</p><p> ① <span word="As">As</span> <span word="he">he</span> <span word="was">was</span> <span word="not">not</span> <span word="well">well</span>, <span word="I">I</span> <span word="decided">decided</span> <span word="to">to</span> <span word="go">go</span> <span word="without">without</span> <span word="him">him</span>. 因为他身体不好，我决定独自去了。</p><p> ② <span word="As">As</span> <span word="it">it</span> <span word="was">was</span> <span word="getting">getting</span> <span word="very">very</span> <span word="late">late</span>, <span word="we">we</span> <span word="soon">soon</span> <span word="turned">turned</span> <span word="back">back</span>. 因为已很晚了， 我们很快就回来了。</p><p> ③ <span word="As">As</span> <span word="it">it</span> <span word="is">is</span> <span word="raining">raining</span>, <span word="you">you</span>’<span word="d">d</span> <span word="better">better</span> <span word="take">take</span> <span word="a">a</span> <span word="taxi">taxi</span>. 既然在下雨，你最好乘出租车。</p><p> Ⅲ. <span word="because">because</span> “因为”表直接而明确的原因或理由。即必然的困果关系。在这几个词中，它的语意最强。回答以<span word="why">why</span> 引导的特殊疑问句时，只能用<span word="because">because</span> . 注意：<span word="because">because</span> 不可以与<span word="so">so</span> 连用。如：</p><p> ① <span word="He">He</span> <span word="had">had</span> <span word="to">to</span> <span word="stay">stay</span> <span word="at">at</span> <span word="home">home</span> <span word="yesterday">yesterday</span> <span word="because">because</span> <span word="he">he</span> <span word="was">was</span> <span word="ill">ill</span>.昨天他只得呆在家里，因为他病了。</p><p> ② <span word="I">I</span> <span word="did">did</span> <span word="it">it</span> <span word="because">because</span> <span word="they">they</span> <span word="asked">asked</span> <span word="me">me</span> <span word="to">to</span> <span word="do">do</span> <span word="it">it</span>. 我之所以做这件事，是因为他请我做的。</p><p> ③ ---<span word="Why">Why</span> <span word="can">can</span>’<span word="t">t</span> <span word="you">you</span> <span word="do">do</span> <span word="it">it</span> <span word="now">now</span>? --- <span word="Because">Because</span> <span word="I">I</span>’<span word="m">m</span> <span word="too">too</span> <span word="busy">busy</span>.</p><p> Ⅳ. <span word="since">since</span>“既然”比<span word="as">as</span> 较为正式，说明为人所知的原因。语气比<span word="because">because</span> 稍弱。</p><p> ① <span word="Since">Since</span> <span word="light">light</span> <span word="travels">travels</span> <span word="faster">faster</span> <span word="than">than</span> <span word="sound">sound</span>, <span word="we">we</span> <span word="see">see</span> <span word="lightening">lightening</span> <span word="before">before</span> <span word="we">we</span> <span word="hear">hear</span> <span word="the">the</span> <span word="thunder">thunder</span>.因为光比声音传播得快，所以我们先看到闪电，后听到雷声。</p>
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