中考英语语法：it的9种主要句式
<p> 1.“<span word="It">It</span> <span word="is">is</span> <span word="time">time</span> <span word="for">for</span>……”表示“是……时候了”。句中介词<span word="for">for</span>后接名词或代词作宾语。</p><p> 如：<span word="It">It</span>’<span word="s">s</span> <span word="time">time</span> <span word="for">for</span> <span word="school">school</span>.是上学的时候了。</p><p> 2.“<span word="It">It</span>’<span word="s">s</span> <span word="time">time</span> <span word="to">to</span> <span word="do">do</span> <span word="sth">sth</span>.”表示“是做某事的时候了”。此句常与上句替换使用。</p><p> 如：<span word="It">It</span> <span word="is">is</span> <span word="time">time</span> <span word="for">for</span> <span word="us">us</span> <span word="to">to</span> <span word="have">have</span> <span word="lunch">lunch</span>.=<span word="It">It</span> <span word="is">is</span> <span word="time">time</span> <span word="for">for</span> <span word="our">our</span> <span word="lunch">lunch</span>.是我们吃午饭的时候了。</p><p> 3.在“<span word="It">It</span> <span word="seems">seems</span>……”句中，<span word="seem">seem</span>是不及物动词，常作系动词用，有“好像、似乎”的意思，后面可跟动词不定式、形容词作表语，也可跟从句。</p><p> 如：<span word="It">It</span> <span word="seemed">seemed</span> <span word="that">that</span> <span word="nobody">nobody</span> <span word="knew">knew</span> <span word="anything">anything</span> <span word="about">about</span> <span word="the">the</span> <span word="matter">matter</span>.看来没有人知道这件事。</p><p> 4.“<span word="It">It</span>’<span word="s">s</span> <span word="one">one</span>’<span word="s">s</span> <span word="turn">turn</span> <span word="to">to</span> <span word="do">do</span> <span word="sth">sth</span>.” 表示“轮到某人做某事了”。</p><p> 如：<span word="It">It</span>’<span word="s">s</span> <span word="your">your</span> <span word="turn">turn</span> <span word="to">to</span> <span word="play">play</span> <span word="ping">ping</span>-<span word="pong">pong</span>.该轮到你打乒乓球了。</p><p> 5.“<span word="It">It</span> <span word="is">is</span>+形容词+<span word="to">to</span> <span word="do">do</span> <span word="sth">sth</span>.”表示“做某事怎么样”。其中<span word="it">it</span>作形式主语，代替后面的不定式<span word="to">to</span> <span word="do">do</span> <span word="sth">sth</span>.(真正主语)。</p><p> 如：<span word="It">It</span> <span word="is">is</span> <span word="easy">easy</span> <span word="to">to</span> <span word="speak">speak</span> <span word="English">English</span>. 说英语很容易。</p><p> 6.“<span word="It">It</span> <span word="is">is</span>+形容词+<span word="for">for</span> <span word="sb">sb</span>.+<span word="to">to</span> <span word="do">do</span> <span word="sth">sth</span>.”意为“对某人来说做某事怎么样”。这种结构中的形容词常常是<span word="easy">easy</span>，<span word="difficult">difficult</span>，<span word="hard">hard</span>，<span word="important">important</span>，<span word="necessary">necessary</span>，<span word="quick">quick</span>等，这些形容词常与事物的特征有关。</p><p> 如：<span word="It">It</span> <span word="is">is</span> <span word="quite">quite</span> <span word="difficult">difficult</span> <span word="for">for</span> <span word="us">us</span> <span word="to">to</span> <span word="find">find</span> <span word="out">out</span> <span word="who">who</span> <span word="broke">broke</span> <span word="the">the</span> <span word="windows">windows</span>.对我们来说，查明是谁打破了窗户是相当难的。</p>
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