高三英语备考总复习课件人教版：专项语法7-情态动词 102张
<p> 必 修 4</p><p> <span word="Units">Units</span> 1～</p><p> 专项语法七 情态动词</p><p> 要点精析</p><p> 一、<span word="can">can</span>和<span word="could">could</span>的用法</p><p> 1．表示惊讶，常用在否定句和疑问句中。</p><p> <span word="How">How</span> <span word="could">could</span> <span word="you">you</span> <span word="do">do</span> <span word="such">such</span> <span word="a">a</span> <span word="silly">silly</span> <span word="thing">thing</span>?</p><p> 你怎么能做那样的蠢事呢？</p><p> 2．表示可能性，意为“可能，有时会”。<span word="can">can</span>和<span word="could">could</span>没有时态的差异，只是<span word="could">could</span>不太肯定。</p><p> <span word="Jogging">Jogging</span> <span word="can">can</span> <span word="be">be</span> <span word="harmful">harmful</span> <span word="to">to</span> <span word="the">the</span> <span word="health">health</span>.</p><p> 慢跑也可能会对健康有害。</p><p> <span word="Accidents">Accidents</span> <span word="can">can</span>/<span word="could">could</span> <span word="happen">happen</span> <span word="on">on</span> <span word="such">such</span> <span word="rainy">rainy</span> <span word="days">days</span>.</p><p> 这样的多雨天气可能会发生事故。(客观的可能性)</p><p> 例 (2010·广西南宁地区联考)<span word="Nowadays">Nowadays</span>, <span word="a">a</span> <span word="graduate">graduate</span> <span word="with">with</span> <span word="a">a</span> <span word="master">master</span>'<span word="s">s</span> <span word="degree">degree</span>________<span word="fail">fail</span> <span word="to">to</span> <span word="find">find</span> <span word="a">a</span> <span word="high">high</span><span word="paid">paid</span> <span word="job">job</span>, <span word="which">which</span> <span word="discourages">discourages</span> <span word="a">a</span> <span word="lot">lot</span> <span word="of">of</span> <span word="college">college</span> <span word="students">students</span>.</p><p> <span word="A">A</span>．<span word="shall">shall</span></p><p> <span word="B">B</span>．<span word="can">can</span></p><p> <span word="C">C</span>．<span word="will">will</span></p><p> <span word="D">D</span>．<span word="must">must</span></p><p> 解析：考查情态动词。这里用<span word="can">can</span>表示“有时会，可能会”。句意：如今有硕士学位的毕业生也可能找不到高薪工作……。</p><p> 答案：<span word="B">B</span></p><p> 3．<span word="can">can</span>用于否定句，意为“应该不是，不可能”。</p><p> <span word="I">I</span> <span word="think">think</span> <span word="it">it</span>'<span word="s">s</span> <span word="all">all</span> <span word="right">right</span>. <span word="She">She</span> <span word="can">can</span>'<span word="t">t</span> <span word="make">make</span> <span word="a">a</span> <span word="mistake">mistake</span>.</p><p> 我想应该没事，她不可能犯错误。</p><p> <span word="The">The</span> <span word="story">story</span> <span word="can">can</span>'<span word="t">t</span> <span word="be">be</span> <span word="true">true</span>.</p>
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