情态动词表示猜测时的用法
<p> 英语语法是学习英语的重点和难点。学好英语语法不仅能在考试中提高成绩，还能在以后的生活交流中提高语感和口语能力，能让你说出一句流畅的英语。今天，小编推荐的是情态动词表示猜测时的用法，希望对你有帮助。</p><p> 情态动词表示猜测时的用法</p><p> 情态动词用于肯定猜测</p><p> 1. <span word="must">must</span>用于肯定句，表示较有把握的推测，意为&<span word="ldquo">ldquo</span>;准是，一定。后面接动词原形，表示对现在的推测。如：</p><p> -<span word="I">I</span>'<span word="ve">ve</span> <span word="had">had</span> <span word="no">no</span> <span word="sleep">sleep</span> <span word="for">for</span> 48 <span word="hours">hours</span>. 我已经48小时没睡觉了。</p><p> -<span word="You">You</span> <span word="must">must</span> <span word="be">be</span> <span word="very">very</span> <span word="tired">tired</span>. 你一定很累了。</p><p> 2. <span word="should">should</span>用于肯定句中，语气次之，意为&<span word="ldquo">ldquo</span>;很可能，应该，指按常理推测。如：</p><p> <span word="They">They</span> <span word="left">left</span> <span word="yesterday">yesterday</span>. <span word="They">They</span> <span word="should">should</span> <span word="be">be</span> <span word="home">home</span> <span word="by">by</span> <span word="now">now</span>. 他们昨天就离开了，现在该到家了。</p><p> 3. <span word="can">can</span>用在肯定句中，表示理论上的可能性。如：</p><p> <span word="Smoking">Smoking</span> <span word="can">can</span> <span word="cause">cause</span> <span word="cancer">cancer</span>. 吸烟有可能引起癌症。</p><p> 4. <span word="may">may</span>用在肯定句中，表示对现在把握不大的推测，意为&<span word="ldquo">ldquo</span>;也许，可能。如：</p><p> <span word="Don">Don</span>'<span word="t">t</span> <span word="play">play</span> <span word="with">with</span> <span word="the">the</span> <span word="knife">knife</span>. <span word="You">You</span> <span word="may">may</span> <span word="cut">cut</span> <span word="yourself">yourself</span>. 不要玩小刀，你可能会伤了自己。</p><p> 5. <span word="could">could</span>, <span word="might">might</span>也可表示推测意义，常用在过去时态中;但在某些场合下，为了使语气更缓和、更委婉，常用<span word="could">could</span>, <span word="might">might</span>代替<span word="can">can</span>, <span word="may">may</span>。如：</p>
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