带to 的情态动词
<p> 带<span word="to">to</span> 的情态动词有四个：<span word="ought">ought</span> <span word="to">to</span>, <span word="have">have</span> <span word="to">to</span>, <span word="used">used</span> <span word="to">to</span>, <span word="be">be</span> <span word="to">to</span>, 如加上<span word="have">have</span> <span word="got">got</span> <span word="to">to</span> ,(=<span word="must">must</span>), <span word="be">be</span> <span word="able">able</span> <span word="to">to</span>，为六个。它们的疑问，否定形式应予以注意：</p><p> <span word="Do">Do</span> <span word="they">they</span> <span word="have">have</span> <span word="to">to</span> <span word="pay">pay</span> <span word="their">their</span> <span word="bill">bill</span> <span word="before">before</span> <span word="the">the</span> <span word="end">end</span> <span word="of">of</span> <span word="the">the</span> <span word="month">month</span>?</p><p> <span word="She">She</span> <span word="didn">didn</span>’<span word="t">t</span> <span word="use">use</span> <span word="to">to</span> <span word="play">play</span> <span word="tennis">tennis</span> <span word="before">before</span> <span word="she">she</span> <span word="was">was</span> <span word="fourteen">fourteen</span>.</p><p> <span word="You">You</span> <span word="ought">ought</span> <span word="not">not</span> <span word="to">to</span> <span word="have">have</span> <span word="told">told</span> <span word="her">her</span> <span word="all">all</span> <span word="about">about</span> <span word="it">it</span>.</p><p> <span word="Ought">Ought</span> <span word="he">he</span> <span word="to">to</span> <span word="see">see</span> <span word="a">a</span> <span word="heart">heart</span> <span word="specialist">specialist</span> <span word="at">at</span> <span word="once">once</span>.?<span word="http">http</span>://<span word="yingyu">yingyu</span>.<span word="chazidian">chazidian</span>.<span word="com">com</span></p><p> <span word="ought">ought</span> <span word="to">to</span> 本身作为情态动词使用。其他的词作为实义动词使用，变疑问，否定时，须有<span word="do">do</span> 等助动词协助。</p><p>典型例题</p><p> <span word="Tom">Tom</span> <span word="ought">ought</span> <span word="not">not</span> <span word="to">to</span> ___ <span word="me">me</span> <span word="your">your</span> <span word="secret">secret</span>, <span word="but">but</span> <span word="he">he</span> <span word="meant">meant</span> <span word="no">no</span> <span word="harm">harm</span>. </p><p> <span word="A">A</span>.<span word="have">have</span> <span word="told">told</span> <span word="B">B</span>.<span word="tell">tell</span> <span word="C">C</span>.<span word="be">be</span> <span word="telling">telling</span> <span word="D">D</span>. <span word="having">having</span> <span word="told">told</span></p><p> 答案<span word="A">A</span>。由于后句为过去时，告诉秘密的动作又发生在其前因，此地应用过去完成时，但它在情态动词 <span word="ought">ought</span> <span word="to">to</span> 后，所以用<span word="have">have</span>。</p><p> </p></p>
页:
[1]