①一般名词在末尾直接加s,清辅音后读/ s /,浊辅音和元音后读/ z /
e.g. book-books, bag-bags, cat-cats, bed-beds
②以s、x、sh、ch结尾,加es,读/ IZ /
e.g. bus-buses, box-boxes,brush-brushes,watch-watches
③以辅音字母+y结尾,变y为i,再加es,读/ z /
e.g. baby-babies, library-libraries,factory-factories
④以f或fe结尾,变f或fe为v,再加es,读/ vz /
e.g. thief-thieves,knife-knives
e.g. photo-photos, piano-pianos, radio-radios, zoo-zoos
potato-potatoes,tomato-tomatoes,mango-mangoes,hero-heroes
⑥不规则变化
man-men
child-children
foot-feet
fish-fish
woman-women
mouse-mice
tooth-teeth
sheep-sheep
policeman-policemen
ox-oxen
goose-geese
library的复数deer-deer
▲ fish表示鱼的数量时,单复数同形;表示鱼的种类时,复数为fishes.
e.g. My cat had two fish for lunch.
You can see a lot of different fishes in the lake.
e.g. a bottle of water ,a cup of coffee,two glasses of milk ,five bags of rice
▲这种形式用于可数名词时,量词和可数名词都要用复数。
e.g. ten baskets of eggs
5、既可用作可数,又可用作不可数的名词:
不可数
glass 玻璃
paper 纸
iron 铁
wood 木头
beauty 美
room 空间
可数
a glass 一只玻璃杯
a paper 一份报纸、论文、文件
a iron 一个熨斗
a wood 一片森林
a beauty 一个美人
a room 一个房间
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