2016届高考英语二轮语法强攻课件：数词
<p> 数词主要包括基数词、序数词和分数词。基数词是表示数目多少的数词，序数词是表示先后顺序的数词。分数词由基数词和序数词构成。 一、基数词</p><p> 1. <span word="hundred">hundred</span>, <span word="thousand">thousand</span>, <span word="million">million</span>, <span word="billion">billion</span>, <span word="dozen">dozen</span>, <span word="score">score</span>等前有具体数字或<span word="several">several</span>, <span word="a">a</span> <span word="few">few</span>等修饰时，一般不用复数；在表示不确切数目时，可用复数。如：</p><p> <span word="Several">Several</span> <span word="million">million</span> <span word="people">people</span> <span word="in">in</span> <span word="the">the</span> <span word="world">world</span> <span word="are">are</span> <span word="using">using</span> <span word="this">this</span> <span word="brand">brand</span> <span word="of">of</span> <span word="toothpaste">toothpaste</span> <span word="every">every</span> <span word="day">day</span>.</p><p> <span word="My">My</span> <span word="teacher">teacher</span> <span word="went">went</span> <span word="to">to</span> <span word="the">the</span> <span word="bookstore">bookstore</span> <span word="and">and</span> <span word="bought">bought</span> <span word="dozens">dozens</span> <span word="of">of</span> <span word="books">books</span>. </p><p> 2. 表示年岁时，用“<span word="in">in</span> <span word="one">one</span>’<span word="s">s</span> +逢十的基数词的复数”。如：<span word="in">in</span> <span word="his">his</span> <span word="forties">forties</span>。</p><p> 3. 表示年代时，用“<span word="in">in</span> <span word="the">the</span> +逢十的基数词的复数”。基数词的复数若用阿拉伯数字表示，可直接加<span word="s">s</span>，也可加’<span word="s">s</span>。如：<span word="in">in</span> <span word="the">the</span> 1950’<span word="s">s</span> / 1950<span word="s">s</span>。 二、序数词</p><p> 1. 序数词前通常要加定冠词<span word="the">the</span>或与物主代词一起使用，在句中可作主语、宾语、定语和表语等。</p><p> 2. 序数词前也可加不定冠词，表示“再一，又一”。如：<span word="a">a</span> <span word="third">third</span> <span word="time">time</span>, <span word="a">a</span> <span word="third">third</span> <span word="and">and</span> <span word="a">a</span> <span word="fourth">fourth</span>等。 三、分数词</p><p> 1. 分数词是由基数词和序数词构成，分子用基数词表示，分母用序数词表示；除了分子为1的情况下，序数词都要用复数形式。如：1/3 <span word="one">one</span> <span word="third">third</span>；3/5 <span word="three">three</span> <span word="fifths">fifths</span>。</p><p> 2. “分数/百分数+ <span word="of">of</span> +名词/代词”作主语时，谓语动词的数与名词或代词的数保持一致。如： <span word="Two">Two</span>-<span word="thirds">thirds</span> <span word="of">of</span> <span word="her">her</span> <span word="spare">spare</span> <span word="time">time</span> <span word="is">is</span> <span word="spent">spent</span> <span word="on">on</span> <span word="housework">housework</span>. 80 <span word="percent">percent</span> <span word="of">of</span> <span word="the">the</span> <span word="houses">houses</span> <span word="were">were</span> <span word="damaged">damaged</span> <span word="in">in</span> <span word="the">the</span> <span word="big">big</span> <span word="earthquake">earthquake</span>. 四、常见考点</p>
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