一般过去时
一般过去时的基本概念
重要程度：8 分
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<h2>一般过去时的基本概念</h2>
<p>一般过去时用来描述在过去某个时间点或时间段内发生的动作或状态。它通常与表示过去的时间状语连用，如：yesterday, last week, in 2019, two days ago等。</p>
<h3>构成</h3>
<ul>
<li>肯定句：主语 + 动词过去式 + 其他成分</li>
<li>否定句：主语 + did not (didn't) + 动词原形 + 其他成分</li>
<li>疑问句：Did + 主语 + 动词原形 + 其他成分？</li>
</ul>
<h3>例题</h3>
<p>例题1：</p>
<p><strong>陈述句：</strong> I visited my grandparents last weekend.</p>
<p><strong>否定句：</strong> I didn't visit my grandparents last weekend.</p>
<p><strong>疑问句：</strong> Did you visit your grandparents last weekend?</p>
<p>例题2：</p>
<p><strong>陈述句：</strong> She wrote a letter to her friend yesterday.</p>
<p><strong>否定句：</strong> She didn't write a letter to her friend yesterday.</p>
<p><strong>疑问句：</strong> Did she write a letter to her friend yesterday?</p>
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