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可数名词中多数是个体名词，也有一些是集体名词。最常见的集体名词有：
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army audience committee company crew enemy family flock gang government group herd navy press public staff team 在用这类名词作主语时，后面动词有时作复数形式：
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A group of children were playing in the park．一群孩子在公园里玩耍。
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A flock of wild geese were flying over head．一群雁正从头上飞过。
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The crew are paid to do all the work on the ship．船员被雇来干船上的各种工作。
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有时作单数形式：
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The press was not free．新闻界不自由。
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The Edison Telephone Company was presently swallowed up by the Bell Telephone Company．爱迪生电话公司最近被贝尔电话公司吞并。
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Our navy is made up of all warships．我们的海军由所有战舰组成。
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但在很多情况下，须根据意思来决定后面的动词用单数还是用复数：
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具体名词和抽象名词：
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具体名词指看得见摸得着的东西。其中大多数都是可数名词：
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There the most common fruits are pears, apples, peaches, persimmons and grapes．最常见的水果有梨、苹果、桃、柿子和葡萄。
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但有些表示某些物质的名词是不可数的，称为物质名词，如：
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air atmosphere beer brass bronze cake cheese china cloth coffee copper cotton dye fabric fertilizer fire fuel fur gas glue gold ice ink iron jam juice liquid lotion meat medicine metal milk oil ointment ore paint paper perfume pesticide plastic poison rain ribbon salad salt sand sauce silver snow soap soil soup steel stone sugar tea water whisky wine wood wool 物质名词一般是不可数的，有时可用于复数形式，表示不同种类的或几份的：
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Copper and silver are both metals．铜和银都是金属。
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Coal, wood and oil are fuels．煤、木头和油都是燃料。
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Two beers, please．请给我两杯啤酒。
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They supplied various soups．他们提供各式各样的汤。
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Four teas．四杯茶。
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有时复数形式表示数量之多：
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Four miles to the east of them lay the blue waters of Lake Michigan．在他们以东4英里是密执安湖蔚蓝的湖水。
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We have all heard of the sands of the seashore．我们都听说过海岸边的大片沙滩。
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