2016届高三（牛津版）英语一轮复习讲义 语法精讲 第七讲 情态动词和虚拟语气
<p> 第七讲 情态动词和虚拟语气</p><p> 一、情态动词的基本用法</p><p> 情态动词 用 法 例 句</p><p> (1)表示禁止(用于否定句)。 <span word="You">You</span> <span word="mustn">mustn</span>’<span word="t">t</span> <span word="park">park</span> <span word="here">here</span>！<span word="It">It</span>’<span word="s">s</span> <span word="an">an</span> <span word="emergency">emergency</span> <span word="exit">exit</span>.</p><p> (2)表必要性意为“必须”。 —<span word="Shall">Shall</span> <span word="I">I</span> <span word="inform">inform</span> <span word="him">him</span> <span word="of">of</span> <span word="the">the</span> <span word="change">change</span> <span word="of">of</span> <span word="the">the</span> <span word="schedule">schedule</span> <span word="right">right</span> <span word="now">now</span>?<span word="must">must</span>，<span word="in">in</span> <span word="case">case</span> <span word="he">he</span> <span word="comes">comes</span> <span word="late">late</span> <span word="for">for</span> <span word="the">the</span> <span word="meeting">meeting</span>.</p><p> (3)表示偏执固执意为“非得偏要”。 <span word="If">If</span> <span word="you">you</span> <span word="must">must</span> <span word="gountil">gountil</span> <span word="the">the</span> <span word="storm">storm</span> <span word="is">is</span> <span word="over">over</span>.</p><p> <span word="can">can</span>和(1)表示“能力”。 —<span word="No">No</span> <span word="one">one</span> <span word="can">can</span> <span word="be">be</span> <span word="compared">compared</span> <span word="with">with</span> <span word="Yao">Yao</span> <span word="Ming">Ming</span> <span word="in">in</span> <span word="playing">playing</span> <span word="basketball">basketball</span>. (2)表示惊讶常用在否定句和疑问句中。 <span word="How">How</span> <span word="could">could</span> <span word="you">you</span> <span word="do">do</span> <span word="such">such</span> <span word="a">a</span> <span word="silly">silly</span> <span word="thing">thing</span>？</p><p> (3)表示礼貌地请求别人做某事意为“能可以”。 —<span word="This">This</span> <span word="dish">dish</span> <span word="is">is</span> <span word="really">really</span> <span word="delicious">delicious</span>.<span word="Could">Could</span> <span word="you">you</span> <span word="please">please</span> <span word="say">say</span> <span word="it">it</span> <span word="in">in</span> <span word="Chinese">Chinese</span>?</p><p> (4)<span word="cannot">cannot</span>...<span word="too">too</span>/</p><p> <span word="enough">enough</span>表示“无论……也不过分”；“越……越好”。 <span word="You">You</span> <span word="can">can</span>’<span word="t">t</span> <span word="be">be</span> <span word="too">too</span> <span word="careful">careful</span> <span word="while">while</span> <span word="driving">driving</span>. (1)用于第一、第三人称疑问句中表示说话人征求对方的 <span word="Shall">Shall</span> <span word="I">I</span> <span word="go">go</span> <span word="out">out</span> <span word="for">for</span> <span word="a">a</span> <span word="walk">walk</span> <span word="after">after</span> <span word="supper">supper</span>?</p><p> (2)用于第二、第三人称陈述句中表示说话人给对方的命令、警告、允诺或威胁。 —<span word="Will">Will</span> <span word="you">you</span> <span word="read">read</span> <span word="me">me</span> <span word="a">a</span> <span word="storyshall">storyshall</span> <span word="have">have</span> <span word="one">one</span> <span word="if">if</span> <span word="you">you</span> <span word="go">go</span> <span word="to">to</span> <span word="bed">bed</span> <span word="as">as</span> <span word="soon">soon</span> <span word="as">as</span> <span word="possible">possible</span>.</p><p> <span word="may">may</span>和(1)<span word="may">may</span>和<span word="might">might</span>表示“许可”、“可能性”、“祝愿”等意义。 —<span word="May">May</span> <span word="I">I</span> <span word="take">take</span> <span word="this">this</span> <span word="book">book</span> <span word="out">out</span> <span word="of">of</span> <span word="the">the</span> <span word="reading">reading</span> <span word="room">room</span>? (2)“<span word="may">may</span> <span word="as">as</span> <span word="well">well</span>＋动词原形”意为“最好倒不如”。 <span word="If">If</span> <span word="you">you</span> <span word="think">think</span> <span word="the">the</span> <span word="price">price</span> <span word="of">of</span> <span word="beef">beef</span> <span word="is">is</span> <span word="too">too</span> <span word="highmay">highmay</span> <span word="as">as</span> <span word="well">well</span> <span word="buy">buy</span> <span word="some">some</span> <span word="pork">pork</span>.<span word="It">It</span> <span word="depends">depends</span> <span word="on">on</span> <span word="you">you</span>.</p>
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