英语语法名词性从句知识点：同位语从句的引导词问题
<p> 【导语】英语语法让很多学生都头疼，因为复杂难懂的句式和词组有时难以记忆。英语网为大家整理了英语语法大全，希望对同学们的英语语法学习有所帮助。更多内容尽在英语网。</p><p> 最常用的引导词</p><p> 用以引导同位语从句的最常用的连词是<span word="that">that</span>。如：</p><p> <span word="The">The</span> <span word="news">news</span> <span word="that">that</span> <span word="we">we</span> <span word="are">are</span> <span word="having">having</span> <span word="a">a</span> <span word="holiday">holiday</span> <span word="tomorrow">tomorrow</span> <span word="is">is</span> <span word="not">not</span> <span word="true">true</span>. 明天放假的消息不实。</p><p> <span word="The">The</span> <span word="idea">idea</span> <span word="that">that</span> <span word="you">you</span> <span word="can">can</span> <span word="do">do</span> <span word="this">this</span> <span word="work">work</span> <span word="without">without</span> <span word="thinking">thinking</span> <span word="is">is</span> <span word="wrong">wrong</span>. 你可以不动脑筋做此工作的想法是错误的。</p><p> 有时也可以用<span word="whether">whether</span>、连接代词或连接副词等来引导。如：</p><p> <span word="It">It</span> <span word="is">is</span> <span word="a">a</span> <span word="question">question</span> <span word="how">how</span> <span word="he">he</span> <span word="did">did</span> <span word="it">it</span>. 那是一个他如何做的问题。</p><p> <span word="Do">Do</span> <span word="you">you</span> <span word="have">have</span> <span word="any">any</span> <span word="idea">idea</span> <span word="where">where</span> <span word="he">he</span> <span word="lives">lives</span>? 你知道他住在哪里吗?</p><p> <span word="She">She</span> <span word="had">had</span> <span word="no">no</span> <span word="idea">idea</span> <span word="why">why</span> <span word="she">she</span> <span word="thought">thought</span> <span word="of">of</span> <span word="him">him</span> <span word="suddenly">suddenly</span>. 她不明白她为什么突然想到了他。</p><p> <span word="We">We</span> <span word="are">are</span> <span word="not">not</span> <span word="investigating">investigating</span> <span word="the">the</span> <span word="question">question</span> <span word="whether">whether</span> <span word="he">he</span> <span word="is">is</span> <span word="trustworthy">trustworthy</span>. 我们不是在调查他是否可信赖的问题。</p><p> 同位语从句可以用<span word="if">if</span>引导吗</p><p> 表示是否的<span word="whether">whether</span>可以引导同位语从句，但是与之同义的<span word="if">if</span>不能用于引导同位语从句。如：</p><p> 他是否会来还不一定。</p><p> 误：<span word="There">There</span> <span word="is">is</span> <span word="some">some</span> <span word="doubt">doubt</span> <span word="if">if</span> <span word="he">he</span> <span word="will">will</span> <span word="come">come</span>.</p>
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