2017高考英语备考复习：情态动词和虚拟语气2
<p> 情态动词主要用来表示说话人的情感、态度等，是中学英语语法的重点，也是高考的热点，是单项填空必考的一个知识点。情态动词在近五年高考中主要考查四点：情态动词表示推测和可能性的用法；情态动词与虚拟语气；情态动词表达“情感、态度、语气等”；情态动词表示 “必要性”等方面的用法。虚拟语气的考点主要集中在名词性从句、条件句中的用法，以及错综条件句中虚拟语气的应用。</p><p> 情态动词表推测的用法 情态动词</p><p> 意义</p><p> 语气</p><p> 句式</p><p> 语境</p><p> 例句</p><p> 备注</p><p> <span word="must">must</span> 一定</p><p> 可能性最大</p><p> 肯定句</p><p> 对</p><p> 具</p><p> 体</p><p> 事</p><p> 的判</p><p> 断 ①<span word="A">A</span>：<span word="Look">Look</span>，<span word="someone">someone</span> <span word="is">is</span> <span word="coming">coming</span>. <span word="Who">Who</span> <span word="can">can</span> <span word="it">it</span> <span word="be">be</span>? <span word="B">B</span>: <span word="It">It</span> <span word="may">may</span> <span word="be">be</span> <span word="our">our</span> <span word="headmaster">headmaster</span>. <span word="A">A</span>: <span word="It">It</span> <span word="can">can</span>’<span word="t">t</span> <span word="be">be</span> <span word="him">him</span>. <span word="He">He</span> <span word="has">has</span> <span word="gone">gone</span> <span word="to">to</span> <span word="Shanghai">Shanghai</span>. <span word="B">B</span>: <span word="It">It</span> <span word="must">must</span> <span word="be">be</span> <span word="Mr">Mr</span>. <span word="Wang">Wang</span>. <span word="He">He</span> <span word="looks">looks</span> <span word="like">like</span> <span word="our">our</span> <span word="headmaster">headmaster</span>. ②<span word="That">That</span> <span word="may">may</span> <span word="not">not</span> <span word="be">be</span> <span word="true">true</span>. ③<span word="He">He</span> <span word="couldn">couldn</span>'<span word="t">t</span> <span word="have">have</span> <span word="discovered">discovered</span> <span word="the">the</span> <span word="truth">truth</span>.</p><p> ①对现在的行为或状态的推测：<span word="must">must</span>/<span word="may">may</span>/<span word="might">might</span>/<span word="can">can</span>/<span word="could">could</span>＋<span word="do">do</span> ②对过去的行为或状态的推测：<span word="must">must</span>/<span word="may">may</span>/<span word="might">might</span>/<span word="can">can</span>/<span word="could">could</span> <span word="have">have</span> <span word="done">done</span></p><p> <span word="may">may</span>/<span word="might">might</span>(<span word="might">might</span>可能性小于<span word="may">may</span>) 可能 可能性较小，尤其<span word="might">might</span>最不肯定 肯定句、否定句(可能不)</p>
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