2017高考英语备考复习：情态动词2
<p> 情态动词</p><p> (一、考点聚焦</p><p> 情态动词的基本用法</p><p> (1)<span word="can">can</span>、<span word="be">be</span> <span word="able">able</span> <span word="to">to</span> 和<span word="could">could</span></p><p> ①<span word="can">can</span>和<span word="be">be</span> <span word="able">able</span> <span word="to">to</span>都表示能力，意思上没多大区别。但<span word="can">can</span>只有现在和过去时，而<span word="be">be</span> <span word="able">able</span> <span word="to">to</span>则有更多的形式。但当成功地完成某一具体动作时，通常不用<span word="could">could</span>而用<span word="was">was</span>/<span word="were">were</span> <span word="able">able</span> <span word="to">to</span>来表示。这时<span word="was">was</span>/<span word="were">were</span> <span word="able">able</span> <span word="to">to</span> 相当于<span word="managed">managed</span> <span word="to">to</span>，表示经过一番努力，终于能够完成某事。如：</p><p> <span word="Can">Can</span> <span word="you">you</span> <span word="use">use</span> <span word="chopsticks">chopsticks</span>?</p><p> <span word="The">The</span> <span word="wounded">wounded</span> <span word="man">man</span> <span word="still">still</span> <span word="was">was</span> <span word="able">able</span> <span word="to">to</span> <span word="get">get</span> <span word="to">to</span> <span word="the">the</span> <span word="village">village</span> <span word="and">and</span> <span word="was">was</span> <span word="saved">saved</span> <span word="in">in</span> <span word="the">the</span></p><p> <span word="end">end</span>.</p><p> ②<span word="can">can</span>和<span word="could">could</span></p><p> <span word="can">can</span>和<span word="could">could</span>都可以表示能力、技能、许可、建议或请求和可能性。但比较委婉客气地提出问题或陈述看法，一般用<span word="could">could</span>，<span word="can">can</span>。<span word="Could">Could</span> <span word="you">you</span> <span word="help">help</span> <span word="me">me</span> <span word="carry">carry</span> <span word="the">the</span> <span word="bag">bag</span>?</p><p> <span word="Can">Can</span> <span word="I">I</span> <span word="help">help</span> <span word="you">you</span>?</p><p> (2)<span word="may">may</span>/<span word="might">might</span></p><p> ①<span word="may">may</span>/<span word="might">might</span>表示可能，但<span word="may">may</span>比<span word="might">might</span>可能性大。如：-<span word="Why">Why</span> <span word="isn">isn</span>’<span word="t">t</span> <span word="he">he</span> <span word="in">in</span> <span word="class">class</span>?</p><p> <span word="He">He</span> <span word="may">may</span> <span word="be">be</span> <span word="sick">sick</span>.(生病的可能性较大)</p><p> —</p><p> <span word="He">He</span> <span word="might">might</span> <span word="be">be</span> <span word="sick">sick</span>.(生病的可能性较小)</p><p> ②<span word="may">may</span>/<span word="might">might</span>表示“允许”，<span word="may">may</span>用于现在时或将来时，<span word="might">might</span>常用在间接引语中表过去时，但<span word="might">might</span>也可用于现在时间，表示比较委婉的语气，回答用<span word="may">may</span>。如：</p><p> <span word="He">He</span> <span word="says">says</span> <span word="we">we</span> <span word="may">may</span> <span word="leave">leave</span>.</p>
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