2017届高考英语一轮复习语法专项突破配套学案：第5讲 情态动词和虚拟语气（北师大版）
<p> 第5讲 情态动词和虚拟语气 情态动词</p><p> [深化认知]</p><p> 一、情态动词的基本用法</p><p> 1．表示能力(<span word="can">can</span>/<span word="could">could</span>/<span word="be">be</span> <span word="able">able</span> <span word="to">to</span>)</p><p> 表现在的或一般的能力，<span word="can">can</span>与<span word="be">be</span> <span word="able">able</span> <span word="to">to</span>的用法一样，但后者不常用；表将来的能力用<span word="will">will</span> <span word="be">be</span> <span word="able">able</span> <span word="to">to</span>；表示过去一般的能力用<span word="could">could</span>，表示过去有能力并且成功地做了某事用<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> <span word="do">do</span> <span word="sth">sth</span>./<span word="succeeded">succeeded</span> <span word="in">in</span> <span word="doing">doing</span> <span word="sth">sth</span>.。</p><p> <span word="The">The</span> <span word="man">man</span> <span word="can">can</span>/<span word="could">could</span> <span word="speak">speak</span> <span word="two">two</span> <span word="foreign">foreign</span> <span word="languages">languages</span>.</p><p> 那个人能说两门外语。</p><p> <span word="Do">Do</span> <span word="you">you</span> <span word="believe">believe</span> <span word="that">that</span> <span word="Mozart">Mozart</span> <span word="could">could</span> <span word="play">play</span> <span word="the">the</span> <span word="piano">piano</span> <span word="at">at</span> <span word="the">the</span> <span word="age">age</span> <span word="of">of</span> <span word="three">three</span>?</p><p> 你相信莫扎特在三岁时就会弹钢琴吗？</p><p> <span word="The">The</span> <span word="fire">fire</span> <span word="spread">spread</span> <span word="through">through</span> <span word="the">the</span> <span word="building">building</span> <span word="very">very</span> <span word="quickly">quickly</span> <span word="but">but</span> <span word="everyone">everyone</span> <span word="was">was</span> <span word="able">able</span> <span word="to">to</span> <span word="get">get</span> <span word="out">out</span>.</p><p> 尽管这场大火很快蔓延到整个大楼，但是每个人都逃出去了。</p><p> [名师指津] 如何区分<span word="can">can</span>和<span word="be">be</span> <span word="able">able</span> <span word="to">to</span></p><p> ①<span word="can">can</span>在时态上只有现在时和过去时两种，而<span word="be">be</span> <span word="able">able</span> <span word="to">to</span>则有更多的时态。</p><p> ②<span word="be">be</span> <span word="able">able</span> <span word="to">to</span>强调“通过努力有能力做到”，如果表示“某事已经成功做成”应用<span word="was">was</span>/<span word="were">were</span> <span word="able">able</span> <span word="to">to</span>，而不用<span word="could">could</span>。</p><p> ③用在其他动词，如<span word="might">might</span>, <span word="may">may</span>, <span word="would">would</span>, <span word="want">want</span>, <span word="hope">hope</span>等之后表示能力只能用<span word="be">be</span> <span word="able">able</span> <span word="to">to</span>。</p><p> <span word="Tom">Tom</span> <span word="may">may</span> <span word="be">be</span> <span word="able">able</span> <span word="to">to</span> <span word="pass">pass</span> <span word="the">the</span> <span word="exam">exam</span> <span word="by">by</span> <span word="studying">studying</span> <span word="hard">hard</span> <span word="from">from</span> <span word="now">now</span> <span word="on">on</span>.</p>
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