句型宝典之含助动词句4
<p> <span word="may">may</span> <span word="have">have</span> <span word="V">V</span>-<span word="ed">ed</span></p><p>结构︰主词＋<span word="may">may</span>／<span word="might">might</span> <span word="have">have</span>＋过去分词</p><p>说明︰此句型意为很可能曾经。表示对过去之事做不太肯定的推测。而<span word="may">may</span>／<span word="might">might</span>＋原形动词是对现在或未来事物做推测。<span word="might">might</span> <span word="have">have</span> 所表示的可能性要比 <span word="may">may</span> <span word="have">have</span> 低一些。</p><p><span word="He">He</span> <span word="may">may</span> <span word="have">have</span> <span word="overslept">overslept</span> <span word="this">this</span> <span word="morning">morning</span>. 今天早上他或许睡过头了。</p><p><span word="The">The</span> <span word="tea">tea</span> <span word="is">is</span> <span word="hot">hot</span>； <span word="he">he</span> <span word="may">may</span> <span word="have">have</span> <span word="been">been</span> <span word="here">here</span> <span word="before">before</span>. 茶还热着，不久前他很可能在这里。</p><p><span word="He">He</span> <span word="may">may</span> <span word="have">have</span> <span word="known">known</span> <span word="the">the</span> <span word="truth">truth</span>； <span word="otherwise">otherwise</span> <span word="he">he</span> <span word="wouldnt">wouldnt</span> <span word="be">be</span> <span word="so">so</span> <span word="angry">angry</span> <span word="now">now</span>.</p><p>他当时很可能知道事情的真相，否则他不会这么生气。</p><p><span word="The">The</span> <span word="boy">boy</span> <span word="might">might</span> <span word="have">have</span> <span word="known">known</span> <span word="the">the</span> <span word="truth">truth</span>， <span word="but">but</span> <span word="I">I</span> <span word="am">am</span> <span word="not">not</span> <span word="quite">quite</span> <span word="sure">sure</span>.</p><p>这男孩当时也许知道真相，但我不很确定。</p><p> <span word="cannot">cannot</span> <span word="have">have</span> <span word="V">V</span>-<span word="ed">ed</span></p><p>结构︰主词＋<span word="cannot">cannot</span> <span word="have">have</span>＋过去分词</p><p>说明︰此句型意为不可能曾经。是对过去之事做否定的推论，此时一定要用 <span word="cannot">cannot</span> <span word="have">have</span> 或 <span word="cannot">cannot</span>，不能使用 <span word="must">must</span> <span word="not">not</span> <span word="have">have</span> 或 <span word="must">must</span> <span word="not">not</span>.而<span word="cannot">cannot</span>＋原形动词是对目前或将来之事做否定的推论。</p><p><span word="She">She</span> <span word="cannot">cannot</span> <span word="have">have</span> <span word="written">written</span> <span word="the">the</span> <span word="letter">letter</span> <span word="herself">herself</span>. 这封信不可能是她自己写的。</p><p><span word="He">He</span> <span word="is">is</span> <span word="honest">honest</span>， <span word="so">so</span> <span word="he">he</span> <span word="cannot">cannot</span> <span word="have">have</span> <span word="stolen">stolen</span> <span word="my">my</span> <span word="money">money</span>.他是个老实人，所以他不可能偷了我的钱。</p><p><span word="He">He</span> <span word="cannot">cannot</span> <span word="have">have</span> <span word="caught">caught</span> <span word="a">a</span> <span word="cold">cold</span>， <span word="because">because</span> <span word="I">I</span> <span word="saw">saw</span> <span word="him">him</span> <span word="dancing">dancing</span> <span word="with">with</span> <span word="Mary">Mary</span> <span word="the">the</span> <span word="same">same</span> <span word="day">day</span>.</p>
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