情态动词could can
<p> 情态动词<span word="can">can</span>, <span word="could">could</span>在口语中相当于<span word="may">may</span>, <span word="might">might</span>,表示许可。通过以下的例子进行具体说明:</p><p> <span word="Can">Can</span> <span word="I">I</span> <span word="help">help</span> <span word="you">you</span>, <span word="sir">sir</span>?</p><p> 先生,我可以帮你吗?</p><p> <span word="could">could</span>可表示客气的请求。</p><p> <span word="I">I</span> <span word="am">am</span> <span word="checking">checking</span> <span word="out">out</span>. <span word="Could">Could</span> <span word="you">you</span> <span word="give">give</span> <span word="me">me</span> <span word="the">the</span> <span word="bill">bill</span>?</p><p> 我要结帐。给我帐单好吗?</p><p> <span word="can">can</span>, <span word="could">could</span>表示能力,相当于<span word="be">be</span> <span word="able">able</span> <span word="to">to</span>。</p><p> <span word="Of">Of</span> <span word="course">course</span> <span word="we">we</span> <span word="can">can</span> <span word="wait">wait</span>.</p><p> 我们当然可以等。</p><p> <span word="can">can</span>,<span word="could">could</span>表示怀疑、推测,一般用于疑问句或否定句。</p><p> <span word="Could">Could</span> <span word="it">it</span> <span word="be">be</span> <span word="the">the</span> <span word="charge">charge</span> <span word="for">for</span> <span word="the">the</span> <span word="fruit">fruit</span>?</p><p> 这会是水果的费用吗?</p><p> <span word="can">can</span>,<span word="could">could</span>用于惯用语。<span word="can">can</span>'<span word="t">t</span> <span word="help">help</span>或<span word="couldn">couldn</span>'<span word="t">t</span> <span word="help">help</span>+动名词表示不得不、忍不住。</p><p> <span word="I">I</span> <span word="can">can</span>'<span word="t">t</span> <span word="help">help</span> <span word="thinking">thinking</span> <span word="you">you</span> <span word="are">are</span> <span word="ripping">ripping</span> <span word="us">us</span> <span word="off">off</span>.</p><p> 我不得不认为你们敲我们的竹杠。</p>
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