雅思写作实用小语法：number的使用
<p> 1 <span word="Adjective">Adjective</span> <span word="forms">forms</span></p><p> <span word="When">When</span> <span word="expressions">expressions</span> <span word="of">of</span> <span word="measurement">measurement</span>, <span word="amount">amount</span> <span word="and">and</span> <span word="quantity">quantity</span> <span word="are">are</span> <span word="used">used</span> <span word="as">as</span> <span word="adjectives">adjectives</span>, <span word="they">they</span> <span word="are">are</span> <span word="normally">normally</span> <span word="singular">singular</span>. 当度量单位，数量等被用作形容词时，通常用单数形式。如：</p><p> <span word="a">a</span> <span word="ten">ten</span>-<span word="mile">mile</span> <span word="walk">walk</span></p><p> <span word="a">a</span> <span word="twenty">twenty</span>-<span word="pound">pound</span> <span word="note">note</span></p><p> <span word="a">a</span> <span word="thirty">thirty</span>-<span word="year">year</span> <span word="period">period</span></p><p> <span word="ten">ten</span> <span word="two">two</span>-<span word="hour">hour</span> <span word="lessons">lessons</span></p><p> <span word="Possessives">Possessives</span> <span word="are">are</span> <span word="often">often</span> <span word="used">used</span> <span word="in">in</span> <span word="expressions">expressions</span> <span word="of">of</span> <span word="time">time</span>.在时间的表述中，经常用所有格。</p><p> <span word="a">a</span> <span word="weeks">weeks</span> <span word="holiday">holiday</span></p><p> <span word="two">two</span> <span word="hours">hours</span> <span word="delay">delay</span></p><p> 2 <span word="hundred">hundred</span>, <span word="thousand">thousand</span>, <span word="dozen">dozen</span>, <span word="etc">etc</span></p><p> <span word="Typical">Typical</span> <span word="mistake">mistake</span>: <span word="she">she</span> <span word="had">had</span> <span word="at">at</span> <span word="least">least</span> <span word="four">four</span> <span word="hundreds">hundreds</span> <span word="of">of</span> <span word="lovers">lovers</span>.</p><p> <span word="When">When</span> <span word="these">these</span> <span word="words">words</span> <span word="are">are</span> <span word="used">used</span> <span word="after">after</span> <span word="a">a</span> <span word="number">number</span> <span word="or">or</span> <span word="several">several</span>, <span word="they">they</span> <span word="do">do</span> <span word="not">not</span> <span word="have">have</span> <span word="s">s</span> <span word="and">and</span> <span word="of">of</span> <span word="is">is</span> <span word="not">not</span> <span word="used">used</span>. 当这些词用在一个数字，或者<span word="several">several</span>后面时，不要加<span word="s">s</span>也不要用<span word="of">of</span>. 如：</p><p> <span word="She">She</span> <span word="had">had</span> <span word="at">at</span> <span word="least">least</span> <span word="four">four</span> <span word="hundred">hundred</span> <span word="lovers">lovers</span>.</p><p> <span word="It">It</span> <span word="cost">cost</span> <span word="several">several</span> <span word="thousand">thousand</span> <span word="pounds">pounds</span>.</p><p> <span word="In">In</span> <span word="other">other</span> <span word="cases">cases</span>, <span word="the">the</span> <span word="plural">plural</span> <span word="form">form</span> <span word="is">is</span> <span word="hundreds">hundreds</span>, <span word="dozens">dozens</span> ,<span word="etc">etc</span>. 在其他情况下，用复数形式，后面通常跟着<span word="of">of</span>. 如：</p><p> <span word="Ive">Ive</span> <span word="seen">seen</span> <span word="it">it</span> <span word="hundreds">hundreds</span> <span word="of">of</span> <span word="times">times</span>.</p><p> <span word="But">But</span> <span word="youve">youve</span> <span word="got">got</span> <span word="dozens">dozens</span> <span word="of">of</span> <span word="dresses">dresses</span>.</p><p> 3 <span word="half">half</span></p><p> <span word="Typical">Typical</span> <span word="mistakes">mistakes</span>:</p><p> <span word="Only">Only</span> <span word="half">half</span> <span word="us">us</span> <span word="could">could</span> <span word="come">come</span>.</p><p> <span word="I">I</span> <span word="live">live</span> <span word="half">half</span> <span word="of">of</span> <span word="a">a</span> <span word="mile">mile</span> <span word="from">from</span> <span word="here">here</span>.</p><p> <span word="Give">Give</span> <span word="me">me</span> <span word="the">the</span> <span word="half">half</span>.</p>
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