小学英语语法：一般现在时
<p>&<span word="nbsp">nbsp</span>;</p><p> 一般现在时的构成：1.<span word="be">be</span>动词：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。2.行为动词：主语+行为动词(+其它)。如：<span word="We">We</span> <span word="study">study</span> <span word="English">English</span>.我们学习英语。当主语为第三人称单数(<span word="he">he</span>, <span word="she">she</span>,<span word="it">it</span>)时，要在动词后加"-<span word="s">s</span>"或"-<span word="es">es</span>"。如：<span word="Mary">Mary</span> <span word="likes">likes</span> <span word="Chinese">Chinese</span>.玛丽喜欢汉语。</p><p> 一般现在时有以下几种表示方式：1.表示事物或人物的特征、状态。如：<span word="The">The</span> <span word="sky">sky</span> <span word="is">is</span> <span word="blue">blue</span>.天空是蓝色的。2.表示经常性或习惯性的动作。如：<span word="I">I</span> <span word="get">get</span> <span word="up">up</span> <span word="at">at</span> <span word="six">six</span> <span word="every">every</span> <span word="day">day</span>.我每天六点起床。3.表示客观现实。如：<span word="The">The</span> <span word="earth">earth</span> <span word="goes">goes</span> <span word="around">around</span> <span word="the">the</span> <span word="sun">sun</span>.地球绕着太阳转。</p><p> 一般现在时的变化</p><p> 1. <span word="be">be</span>动词的变化。</p><p> 否定句：主语+ <span word="be">be</span> + <span word="not">not</span> +其它。</p><p> 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。</p><p> 如：-<span word="Are">Are</span> <span word="you">you</span> <span word="a">a</span> <span word="student">student</span>?</p><p> -<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> 否定句：主语+ <span word="don">don</span>'<span word="t">t</span>( <span word="doesn">doesn</span>'<span word="t">t</span> ) +动词原形(+其它)。如：</p><p> <span word="I">I</span> <span word="don">don</span>'<span word="t">t</span> <span word="like">like</span> <span word="bread">bread</span>.</p><p> 当主语为第三人称单数时，要用<span word="doesn">doesn</span>'<span word="t">t</span>构成否定句。如：</p>
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