小升初英语语法时态讲解与归纳
<p> 一般现在时</p><p> 一. 意义：表示经常发生的事情，动作或存在的状态</p><p> 二. 构成及变化</p><p> 1.<span word="be">be</span>动词的变化。</p><p> 肯定句：主语+<span word="be">be</span>(<span word="am">am</span>,<span word="is">is</span>,<span word="are">are</span>)+其它。如： <span word="I">I</span> <span word="am">am</span> <span word="a">a</span> <span word="boy">boy</span>.我是一个男孩。</p><p> 否定句：主语+ <span word="be">be</span> + <span word="not">not</span> +其它。如：<span word="He">He</span> <span word="is">is</span> <span word="not">not</span> <span word="a">a</span> <span word="worker">worker</span>.他不是工人。</p><p> 一般疑问句：<span word="Be">Be</span> +主语+其它。 如：-<span word="Are">Are</span> <span word="you">you</span> <span word="a">a</span> <span word="student">student</span>? -<span word="Yes">Yes</span>. <span word="I">I</span> <span word="am">am</span>. / <span word="No">No</span>, <span word="I">I</span>\'<span word="m">m</span> <span word="not">not</span>.</p><p> 特殊疑问句：疑问词+一般疑问句。如：<span word="Where">Where</span> <span word="is">is</span> <span word="my">my</span> <span word="bike">bike</span>?</p><p> 2. 行为动词的变化。</p><p> 当主语为第一，二人称及复数时，助动词为<span word="do">do</span></p><p> 肯定句：主语+动词原形(+其它)。如： <span word="We">We</span> <span word="often">often</span> <span word="play">play</span> <span word="basketball">basketball</span> <span word="after">after</span> <span word="school">school</span>.</p><p> 否定句：主语+ <span word="don">don</span>\'<span word="t">t</span>+动词原形(+其它)。如：<span word="we">we</span> <span word="dont">dont</span> <span word="play">play</span> <span word="basketball">basketball</span> <span word="after">after</span> <span word="school">school</span>.</p><p> 一般疑问句：<span word="Do">Do</span> +主语+动词原形+其它?</p><p> 如： <span word="Do">Do</span> <span word="you">you</span> <span word="often">often</span> <span word="play">play</span> <span word="basketball">basketball</span> <span word="after">after</span> <span word="school">school</span> <span word="l">l</span>? <span word="Yes">Yes</span>, <span word="we">we</span> <span word="do">do</span>. / <span word="No">No</span>, <span word="we">we</span> <span word="don">don</span>\'<span word="t">t</span>.</p><p> 特殊疑问句：疑问词+以<span word="do">do</span>开头的一般疑问句？</p><p> 如： <span word="What">What</span> <span word="do">do</span> <span word="you">you</span> <span word="often">often</span> <span word="do">do</span> <span word="after">after</span> <span word="school">school</span> ?</p><p> 当主语为第三人称单数时 ,助动词为<span word="does">does</span></p><p> 肯定句：主语+动词三单式(+其它)。如： <span word="He">He</span> <span word="swims">swims</span> <span word="well">well</span>.</p><p> 否定句：主语+ <span word="doesnt">doesnt</span>+动词原形(+其它)。如：<span word="He">He</span> <span word="doesnt">doesnt</span> <span word="swim">swim</span> <span word="well">well</span>..</p>
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