LET引导的祈使句
<p>由<span word="let">let</span>带头的祈使句(<span word="Imperative">Imperative</span> <span word="Sentences">Sentences</span>)是个常见的动词句型，它的主要用法有下列三种：</p><p>1.表示建议。</p><p>这个句型里的<span word="let">let</span>后头紧跟着一个第一人称的代词宾语，如：</p><p>(1) <span word="Let">Let</span> <span word="me">me</span> <span word="try">try</span>.</p><p>(2) <span word="Lets">Lets</span> <span word="do">do</span> <span word="it">it</span>.</p><p>(3) <span word="Let">Let</span> <span word="me">me</span> <span word="go">go</span> <span word="and">and</span> <span word="look">look</span> <span word="for">for</span> <span word="it">it</span>.</p><p>这个句型语气委婉，比直接的祈使句客气。试比较(4)<span word="a">a</span>和(4)<span word="b">b</span>：</p><p>(4) <span word="a">a</span>. <span word="Dont">Dont</span> <span word="disturb">disturb</span> <span word="him">him</span>.</p><p><span word="b">b</span>. <span word="Lets">Lets</span> <span word="not">not</span> <span word="disturb">disturb</span> <span word="him">him</span>.</p><p>(<span word="a">a</span>)是直接命令，语气强烈，不如(<span word="b">b</span>)温柔悦耳。</p><p>2.表示间接命令或愿望。</p><p>这句型里的动词宾语是第三人称名词或代词，如：</p><p>(5) <span word="Let">Let</span> <span word="Robert">Robert</span> <span word="take">take</span> <span word="charge">charge</span> <span word="of">of</span> <span word="the">the</span> <span word="marketing">marketing</span> <span word="department">department</span>.</p><p>(6) <span word="Let">Let</span> <span word="her">her</span> <span word="join">join</span> <span word="our">our</span> <span word="choir">choir</span>.</p><p>3.表示警告、蔑视、威胁等。</p><p>这种祈使句里的宾语也是第三人称为主。除了口气凶悍之外，有时还语带讽刺，如：</p><p>(7) <span word="Let">Let</span> <span word="him">him</span> <span word="try">try</span> <span word="and">and</span> <span word="he">he</span> <span word="will">will</span> <span word="expose">expose</span> <span word="his">his</span> <span word="inability">inability</span> <span word="to">to</span> <span word="work">work</span> <span word="on">on</span> <span word="his">his</span> <span word="own">own</span>.</p><p>(8) <span word="Let">Let</span> <span word="the">the</span> <span word="invaders">invaders</span> <span word="come">come</span> <span word="and">and</span> <span word="our">our</span> <span word="armed">armed</span> <span word="forces">forces</span> <span word="will">will</span> <span word="wipe">wipe</span> <span word="them">them</span> <span word="out">out</span> <span word="in">in</span> <span word="no">no</span> <span word="time">time</span>.</p><p>用<span word="let">let</span>的祈使句时，必须注意下列几点：</p><p>一、<span word="let">let</span> 的否定句有二。如果宾语是第三人称用<span word="Dont">Dont</span> <span word="let">let</span>(见例(9));如果宾语是第一人称，则用<span word="Letnot">Letnot</span> (见例(10))：</p>
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