初中英语句型结构知识点详解：It引导结构
<p> <span word="It">It</span> 既是代词又是引词。作代词时，它可作人称代词、指示代词、非人称代词，用于前指、非确指或习语中。作引词时，它本身无实义，只起先行引导的作用。</p><p> 可作形式主语(<span word="it">it</span> <span word="is">is</span> + <span word="adj">adj</span>. + <span word="for">for</span>/<span word="of">of</span> <span word="sb">sb</span>. <span word="to">to</span> <span word="do">do</span> <span word="sth">sth</span>.)或形式宾语(<span word="it">it</span> + <span word="adj">adj</span>. + <span word="to">to</span> <span word="do">do</span> <span word="sth">sth</span>.)，真实地主语或宾语是不定式、动名词或名词从句，它们则放在后面。<span word="It">It</span> 也用于强调句结构。</p><p> 如想强调某个词或部分，可用<span word="it">it</span> <span word="is">is</span> (<span word="was">was</span>)+强调部分(主语、宾语或状语)+<span word="that">that</span>(<span word="who">who</span>)的强调结构。本章要求了解代词 <span word="it">it</span> 和引词<span word="it">it</span> 的各种用法，重点掌握<span word="it">it</span> 用于前指或后指;引词<span word="it">it</span> 用于强调结构。</p><p> 返回：初中英语句型结构知识点详解 </p>
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