2017届高考英语考前冲刺：情态动词
<p> 2017届高考英语考前冲刺精选情态动词</p><p> 情态动词无人称和数的变化，但却有一定的意义，表示一种看法。英语中的情态动词有: <span word="can">can</span>, <span word="could">could</span>, <span word="may">may</span>, <span word="might">might</span>, <span word="shall">shall</span>, <span word="should">should</span>, <span word="will">will</span>, <span word="would">would</span>, <span word="must">must</span>, <span word="ought">ought</span> <span word="to">to</span>, <span word="need">need</span>, <span word="dare">dare</span>, <span word="used">used</span> <span word="to">to</span>.</p><p> 1. <span word="can">can</span> 与<span word="could">could</span></p><p> 1) 能力：</p><p> <span word="I">I</span> <span word="can">can</span> <span word="do">do</span> <span word="it">it</span> <span word="well">well</span>.</p><p> <span word="He">He</span> <span word="couldn">couldn</span>’<span word="t">t</span> <span word="support">support</span> <span word="his">his</span> <span word="family">family</span> <span word="with">with</span> <span word="his">his</span> <span word="few">few</span> <span word="pay">pay</span>.</p><p> 2) 可能性或允许：</p><p> <span word="She">She</span> <span word="can">can</span> <span word="be">be</span> <span word="free">free</span> <span word="this">this</span> <span word="afternoon">afternoon</span>.</p><p> <span word="She">She</span> <span word="asked">asked</span> <span word="me">me</span> <span word="if">if</span> <span word="she">she</span> <span word="could">could</span> <span word="take">take</span> <span word="the">the</span> <span word="books">books</span> <span word="of">of</span> <span word="the">the</span> <span word="library">library</span>.</p><p> 3) 表示惊异、怀疑等：</p><p> <span word="What">What</span> <span word="you">you</span> <span word="told">told</span> <span word="me">me</span> <span word="can">can</span>’<span word="t">t</span> <span word="be">be</span> <span word="true">true</span>.</p><p> <span word="How">How</span> <span word="can">can</span> (<span word="could">could</span>) <span word="you">you</span> <span word="be">be</span> <span word="so">so</span> <span word="careless">careless</span>!</p><p> 4) <span word="could">could</span> 可以委婉提出问题和看法，还可以用于虚拟语气中。</p><p> <span word="Could">Could</span> <span word="you">you</span> <span word="give">give</span> <span word="me">me</span> <span word="some">some</span> <span word="help">help</span>?</p><p> <span word="I">I</span> <span word="would">would</span> <span word="help">help</span> <span word="you">you</span> <span word="if">if</span> <span word="I">I</span> <span word="could">could</span>.</p><p> 2. <span word="can">can</span>与 <span word="be">be</span> <span word="able">able</span> <span word="to">to</span></p><p> <span word="can">can</span> (<span word="could">could</span>) 表示能力、可能性、允许、迟疑情绪等；<span word="be">be</span> <span word="able">able</span> <span word="to">to</span> 只表示能力，可以有更多的时态形式。</p><p> 表示能力，二者通用。</p><p> <span word="I">I</span> <span word="can">can</span> <span word="answer">answer</span> <span word="the">the</span> <span word="question">question</span>. = <span word="I">I</span> <span word="am">am</span> <span word="able">able</span> <span word="to">to</span> <span word="answer">answer</span> <span word="the">the</span> <span word="question">question</span>.</p><p> <span word="No">No</span> <span word="one">one</span> <span word="could">could</span> <span word="answer">answer</span> <span word="the">the</span> <span word="question">question</span>. = <span word="No">No</span> <span word="one">one</span> <span word="was">was</span> <span word="able">able</span> <span word="to">to</span> <span word="answer">answer</span> <span word="the">the</span> <span word="question">question</span>.</p><p> <span word="I">I</span>’<span word="m">m</span> <span word="sorry">sorry</span>. <span word="I">I</span> <span word="haven">haven</span>’<span word="t">t</span> <span word="been">been</span> <span word="able">able</span> <span word="to">to</span> <span word="answer">answer</span> <span word="your">your</span> <span word="letter">letter</span>.</p><p> 表示可能、允许、推测时用<span word="can">can</span>。</p>
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