2016届高考英语二轮秒杀高中英语重点系列：重点11 情态动词+动词不定式完成结构的用法
<p> 1）<span word="must">must</span> <span word="have">have</span> <span word="done">done</span> 过去一定做了某事,只用于肯定句。</p><p> 2)<span word="can">can</span>’<span word="t">t</span>/<span word="couldn">couldn</span>’<span word="t">t</span> <span word="have">have</span> <span word="done">done</span> 过去不可能做了某事</p><p> 3)<span word="could">could</span> <span word="have">have</span> <span word="done">done</span> “本来可以……”（表示过去没有实现的可能）。 4)<span word="may">may</span> /<span word="might">might</span> <span word="have">have</span> <span word="done">done</span> “本来可能……；本来应该或可以做某事”（实际没有发生；含有轻微的责备语气。 5）<span word="should">should</span>/<span word="ought">ought</span> <span word="to">to</span> <span word="have">have</span> <span word="done">done</span> “本来该做某事”（而实际未做） 6)<span word="should">should</span> <span word="not">not</span>/<span word="ought">ought</span> <span word="not">not</span> <span word="to">to</span> <span word="have">have</span> <span word="done">done</span> “本来不该做”（实际却做过了，含有责备语气） 7)<span word="needn">needn</span>’<span word="t">t</span> <span word="have">have</span> <span word="done">done</span> “本来不必做”（但是已经做过了） 8)<span word="would">would</span> <span word="rather">rather</span> <span word="have">have</span> <span word="done">done</span> “当时宁愿做了某事”（实际没有做过）；</p><p> 否定式<span word="would">would</span> <span word="rather">rather</span> <span word="not">not</span> <span word="have">have</span> <span word="done">done</span>, 表达相反意思“宁愿当时没有做某事”，两者都有后悔之意。</p><p> 练习： 1. <span word="We">We</span></p><p> <span word="have">have</span> <span word="bought">bought</span> <span word="so">so</span> <span word="much">much</span> <span word="food">food</span> <span word="now">now</span> <span word="that">that</span> <span word="Suzie">Suzie</span> <span word="won">won</span>’<span word="t">t</span> <span word="be">be</span> <span word="with">with</span> <span word="us">us</span> <span word="for">for</span> <span word="dinner">dinner</span>.</p><p> <span word="A">A</span>．<span word="may">may</span> <span word="not">not</span> <span word="B">B</span>．<span word="needn">needn</span>’<span word="t">t</span> <span word="C">C</span>．<span word="can">can</span>’<span word="t">t</span></p><p> <span word="D">D</span>．<span word="mustn">mustn</span>’<span word="t">t</span> (2017江西) 2. <span word="I">I</span> <span word="met">met</span> <span word="Mr">Mr</span>. <span word="White">White</span> <span word="shortly">shortly</span> <span word="after">after</span> <span word="the">the</span> <span word="Second">Second</span> <span word="World">World</span> <span word="War">War</span>, <span word="and">and</span> <span word="that">that</span> ___ <span word="about">about</span> <span word="March">March</span> 1946, <span word="I">I</span> <span word="suppose">suppose</span>.</p><p> <span word="A">A</span>. <span word="is">is</span></p><p> <span word="B">B</span>. <span word="maybe">maybe</span></p><p> <span word="C">C</span>. <span word="must">must</span> <span word="have">have</span> <span word="been">been</span></p><p> <span word="D">D</span>. <span word="may">may</span> <span word="have">have</span> <span word="been">been</span></p><p> 3. <span word="My">My</span> <span word="sister">sister</span> <span word="met">met</span> <span word="him">him</span> <span word="at">at</span> <span word="the">the</span> <span word="Grand">Grand</span> <span word="Theater">Theater</span> <span word="yesterday">yesterday</span> <span word="afternoon">afternoon</span>, <span word="so">so</span> <span word="he">he</span> ___ <span word="your">your</span> <span word="lecture">lecture</span>.</p><p> <span word="A">A</span>. <span word="couldn">couldn</span>’<span word="t">t</span> <span word="have">have</span> <span word="attended">attended</span></p><p> <span word="B">B</span>. <span word="needn">needn</span>’<span word="t">t</span> <span word="have">have</span> <span word="attended">attended</span></p>
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