2014年中考英语常见考点：条件状语从句
<p> 知识点总结</p><p> 引导条件状语从句的连接词主要有：<span word="if">if</span>(如果)、<span word="unless">unless</span>(除非)或 <span word="as">as</span> <span word="long">long</span> <span word="as">as</span>(只要)等。<span word="unless">unless</span>在意思上等于<span word="if">if</span>...<span word="not">not</span>。</p><p> 一、条件状语从句用法</p><p> 1、引导条件状语从句最常用的连词是<span word="if">if</span>,由<span word="if">if</span>引导的条件状语从句表示在某种条件下某事很可能发生。如:</p><p> <span word="If">If</span> <span word="you">you</span> <span word="ask">ask</span> <span word="him">him</span>, <span word="he">he</span> <span word="will">will</span> <span word="help">help</span> <span word="you">you</span>.如果你请他帮忙,他会帮你的。</p><p> <span word="If">If</span> <span word="you">you</span> <span word="fail">fail</span> <span word="in">in</span> <span word="the">the</span> <span word="exam">exam</span>, <span word="you">you</span> <span word="will">will</span> <span word="let">let</span> <span word="him">him</span> <span word="down">down</span>.如果你考试不及格,你会让他失望的。</p><p> 另外,<span word="if">if</span>从 句还表示不可实现的条件或根本不可能存在的条件,也就是一种虚拟的条件或假设,从句多用一般过去时或过去完成时。如: <span word="If">If</span> <span word="I">I</span> <span word="were">were</span> <span word="you">you</span>, <span word="I">I</span> <span word="would">would</span> <span word="invite">invite</span> <span word="him">him</span> <span word="to">to</span> <span word="the">the</span> <span word="party">party</span>.如果我是你,我会邀 请他参加聚会。</p><p> 2、<span word="unless">unless</span> = <span word="if">if</span>...<span word="not">not</span>. 除非,若不,除非在的时候</p><p> 例如：<span word="Lets">Lets</span> <span word="go">go</span> <span word="out">out</span> <span word="for">for</span> <span word="a">a</span> <span word="walk">walk</span> <span word="unless">unless</span> <span word="you">you</span> <span word="are">are</span> <span word="too">too</span> <span word="tired">tired</span>.</p><p> =<span word="If">If</span> <span word="you">you</span> <span word="are">are</span> <span word="not">not</span> <span word="too">too</span> <span word="tired">tired</span>, <span word="lets">lets</span> <span word="go">go</span> <span word="out">out</span> <span word="for">for</span> <span word="a">a</span> <span word="walk">walk</span>.</p><p> <span word="Unless">Unless</span> <span word="it">it</span> <span word="rains">rains</span>, <span word="the">the</span> <span word="game">game</span> <span word="will">will</span> <span word="be">be</span> <span word="played">played</span>.除非下雨,比赛将照常进行。</p><p> 3、<span word="so">so</span>/<span word="as">as</span> <span word="long">long</span> <span word="as">as</span>只要</p><p> 例句;<span word="You">You</span> <span word="may">may</span> <span word="borrow">borrow</span> <span word="my">my</span> <span word="book">book</span> <span word="as">as</span> <span word="long">long</span> <span word="as">as</span> <span word="you">you</span> <span word="keep">keep</span> <span word="it">it</span> <span word="clean">clean</span>. 只要你保持书的清 洁，你就可以把我的书借去。</p><p> <span word="So">So</span> <span word="long">long</span> <span word="as">as</span> <span word="youre">youre</span> <span word="happy">happy</span>, <span word="it">it</span> <span word="doe">doe</span> <span word="snt">snt</span> <span word="matter">matter</span> <span word="what">what</span> <span word="you">you</span> <span word="do">do</span>. 只要你高兴，你做什么都没有关系。</p>
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