初中英语现在完成时语法注意事项
<p>&<span word="nbsp">nbsp</span>;</p><p> 【小编编语】今天英语网小编教给同学们的是初中英语现在完成时语法注意事项，一起来学习下吧!祝同学们学习进步!</p><p> 几点注意事项</p><p> (1)<span word="have">have</span> <span word="been">been</span>(<span word="to">to</span>)与<span word="have">have</span> <span word="gone">gone</span>( <span word="to">to</span>)的区别：<span word="have">have</span> <span word="been">been</span>(<span word="to">to</span>)表示&<span word="ldquo">ldquo</span>;去过某地(现在已经回来了)，可用于各人称;<span word="have">have</span> <span word="gone">gone</span>(<span word="to">to</span>)表示&<span word="ldquo">ldquo</span>;去某地了(说话时某人不在当地)，常用于第三人称，前者可与<span word="once">once</span> ,<span word="never">never</span>,<span word="several">several</span> <span word="times">times</span>等连用，后者则不能。</p><p> 如：<span word="They">They</span> <span word="have">have</span> <span word="been">been</span> <span word="to">to</span> <span word="Beijing">Beijing</span> <span word="twice">twice</span>.他们去过北京两次。</p><p> <span word="He">He</span> <span word="has">has</span> <span word="gone">gone</span> <span word="to">to</span> <span word="Beijing">Beijing</span> . 他去北京了。</p><p> (2)如单纯表示一段时间，或强调一段时间，虽有<span word="since">since</span>一词，也不必用完成时。如：<span word="It">It</span> <span word="is">is</span> <span word="two">two</span> <span word="years">years</span> <span word="since">since</span> <span word="his">his</span> <span word="father">father</span> <span word="died">died</span>. =<span word="His">His</span> <span word="father">father</span> <span word="has">has</span> <span word="been">been</span> <span word="dead">dead</span> <span word="for">for</span> <span word="two">two</span> <span word="years">years</span>.他父亲去世已有三年了。</p><p> (3)终止性动词现在完成时的否定式，已变成一种可以延续的状态，因此可以和表示一段时间的状语连用。</p><p> 如：<span word="I">I</span> <span word="haven">haven</span>'<span word="t">t</span> <span word="left">left</span> <span word="here">here</span> <span word="since">since</span> 1997.自从1997年以来，我一直没有离开过这儿。</p><p> (2)现在完成时常见两种句型：</p><p> ①主语+<span word="have">have</span> / <span word="has">has</span> <span word="been">been</span>+<span word="for">for</span>短语</p><p> ②<span word="It">It</span> <span word="is">is</span>+一段时间+ <span word="since">since</span>从句</p><p> 例如：<span word="He">He</span> <span word="has">has</span> <span word="been">been</span> <span word="in">in</span> <span word="the">the</span> <span word="League">League</span> <span word="for">for</span> <span word="three">three</span> <span word="years">years</span>.或<span word="It">It</span> <span word="is">is</span> <span word="three">three</span> <span word="years">years</span> <span word="since">since</span> <span word="he">he</span> <span word="joined">joined</span> <span word="the">the</span> <span word="League">League</span>. 他入团已三年了。</p>
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