2017高考精准考点：不可数名词与可数名词的转化
<p> 不可数名词与可数名词的转化</p><p> (1) 物质名词转化为可数名词：有些物质名词表示不同种类时可以转化为可数名词。如：</p><p> <span word="The">The</span> <span word="potato">potato</span> <span word="is">is</span> <span word="a">a</span> <span word="vegetable">vegetable</span>, <span word="not">not</span> <span word="a">a</span> <span word="fruit">fruit</span>. 土豆是一种蔬菜，不是水果。</p><p> <span word="Marble">Marble</span> <span word="is">is</span> <span word="a">a</span> <span word="precious">precious</span> <span word="stone">stone</span>. 大理石是一种珍贵的石料。</p><p> <span word="My">My</span> <span word="doctor">doctor</span> <span word="told">told</span> <span word="me">me</span> <span word="to">to</span> <span word="avoid">avoid</span> <span word="fatty">fatty</span> <span word="foods">foods</span> <span word="such">such</span> <span word="as">as</span> <span word="bacon">bacon</span> <span word="or">or</span> <span word="hamburgers">hamburgers</span>. 我的医生叫我避免吃油腻的食物，如咸肉或汉堡包。</p><p> (2) 抽象胜名词转化为可数名词：有些抽象名词表示具体的事物时，可以用作可数名词。如：</p><p> <span word="help">help</span> 帮助 → <span word="help">help</span> 帮手</p><p> <span word="shame">shame</span> 遗憾 → <span word="pity">pity</span>遗憾的事</p><p> <span word="pleasure">pleasure</span> 快乐 → <span word="pleasure">pleasure</span> 乐事</p><p> <span word="success">success</span> 成功 → <span word="success">success</span> 成功的人或事</p><p> <span word="surprise">surprise</span>惊奇 → <span word="surprise">surprise</span>令人惊奇的事</p><p> <span word="disappointment">disappointment</span> 失望 → <span word="disappointment">disappointment</span> 令人失望的人或事</p><p> (3) 特殊物质名词的数量表示：当要表示“一场 / 段 / 件 / 种……”等意思时，某些物质名词前可用不定冠词，但此时通常有形容词或<span word="of">of</span>短语修饰。如：</p><p> <span word="A">A</span> <span word="heavy">heavy</span> <span word="snow">snow</span> <span word="was">was</span> <span word="falling">falling</span>. 当时正下着一场大雪。</p><p> <span word="A">A</span> <span word="fine">fine</span> <span word="rain">rain</span> <span word="began">began</span> <span word="to">to</span> <span word="fall">fall</span>. 开始下起一阵小雨。</p><p> 另外，表示“一杯 / 罐 / 瓶”的<span word="tea">tea</span>, <span word="coffee">coffee</span>, <span word="drink">drink</span>, <span word="beer">beer</span>等，可以用<span word="a">a</span>(<span word="n">n</span>)或数词修饰，也有复数形式。如：</p>
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