高二英语语法总结：名词性从句
<p> 第一章 名词性从句</p><p> 在句子中起名词作用的句子叫名词性从句(<span word="Noun">Noun</span> <span word="Clauses">Clauses</span>)。 名词性从句的功能相当于名词词组, 它在复合句中能担任主语、宾语、表语、同位语、介词宾语等，因此根据它在句中不同的语法功能，名词从句又可分别称为主语从句、宾语从句、表语从句和同位语从句。</p><p> 一. 主语从句</p><p> 主语从句是在复合句中充当主语的从句，通常放在主句谓语动词之前或由形式主语<span word="it">it</span>代替，而本身放在句子末尾。</p><p> 1. <span word="It">It</span> 作形式主语和<span word="it">it</span>引导强调句的比较</p><p> <span word="It">It</span> 作形式主语代替主语从句，主要是为了平衡句子结构，主语从句的连接词没有变化。而<span word="it">it</span>引导的强调句则是对句子某一部分进行强调，无论强调的是什么成分，都可用连词<span word="that">that</span>。被强调部分指人时也可用<span word="who">who</span>/<span word="whom">whom</span>。例如：</p><p> <span word="a">a</span>) <span word="It">It</span> <span word="is">is</span> <span word="a">a</span> <span word="pity">pity</span> <span word="that">that</span> <span word="you">you</span> <span word="didnt">didnt</span> <span word="go">go</span> <span word="to">to</span> <span word="see">see</span> <span word="the">the</span> <span word="film">film</span>. 你不去看那场电影真可惜。</p><p> <span word="b">b</span>) <span word="It">It</span> <span word="doesnt">doesnt</span> <span word="interest">interest</span> <span word="me">me</span> <span word="whether">whether</span> <span word="you">you</span> <span word="succeed">succeed</span> <span word="or">or</span> <span word="not">not</span>. 我对你成功与否不感兴趣。</p><p> <span word="c">c</span>) <span word="It">It</span> <span word="is">is</span> <span word="in">in</span> <span word="the">the</span> <span word="morning">morning</span> <span word="that">that</span> <span word="the">the</span> <span word="murder">murder</span> <span word="took">took</span> <span word="place">place</span>. 谋杀案是在早上发生的。(强调句型)</p><p> <span word="d">d</span>) <span word="It">It</span> <span word="is">is</span> <span word="John">John</span> <span word="that">that</span> <span word="broke">broke</span> <span word="the">the</span> <span word="window">window</span>. 是<span word="John">John</span>打碎的窗户。(强调句型)</p><p> 2. 用<span word="it">it</span> 作形式主语的结构</p>
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