［动词的时态］ used to / be used to
<p> <span word="used">used</span> <span word="to">to</span> + <span word="do">do</span>：过去常常表示过去习惯性的动作或状态，但如今已不存在。例如：</p><p> <span word="Mother">Mother</span> <span word="used">used</span> <span word="not">not</span> <span word="to">to</span> <span word="be">be</span> <span word="so">so</span> <span word="forgetful">forgetful</span>. 老妈过去没那么健忘。</p><p> <span word="Scarf">Scarf</span> <span word="used">used</span> <span word="to">to</span> <span word="take">take</span> <span word="a">a</span> <span word="walk">walk</span>. 斯卡夫过去常常散步。</p><p> <span word="be">be</span> <span word="used">used</span> <span word="to">to</span> + <span word="doing">doing</span>： 对已感到习惯，或习惯于，<span word="to">to</span>是介词，后需加名词或动名词。例如：</p><p> <span word="He">He</span> <span word="is">is</span> <span word="used">used</span> <span word="to">to</span> <span word="a">a</span> <span word="vegetarian">vegetarian</span> <span word="diet">diet</span>.</p><p> <span word="Scarf">Scarf</span> <span word="is">is</span> <span word="used">used</span> <span word="to">to</span> <span word="taking">taking</span> <span word="a">a</span> <span word="walk">walk</span>. 斯卡夫现在已习惯于散步了。</p><p> 典型例题</p><p> ---- <span word="Your">Your</span> <span word="phone">phone</span> <span word="number">number</span> <span word="again">again</span>? <span word="I">I</span> ___ <span word="quite">quite</span> <span word="catch">catch</span> <span word="it">it</span>.</p><p> ---- <span word="Its">Its</span> 69568442. </p><p> <span word="A">A</span>. <span word="didnt">didnt</span> <span word="B">B</span>. <span word="couldnt">couldnt</span> <span word="C">C</span>. <span word="dont">dont</span> <span word="D">D</span>. <span word="cant">cant</span></p><p> 答案<span word="A">A</span>. 本句虽没有明确的时间状语，但从语意上看出，在听的时候没有听懂这个动作发生在过去，因此应用过去时。</p><p> </p>
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