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名词单数变复数的改写规则: 1.一般名词复数是在名词后面加上“s”,如book→books,bag→bags等;
2.以s,sh,ch,x等结尾的词加“es”,如bus→buses,sandwich→sandwiches, dish---dishes, box--boxes 等;
3.a.以辅音字母+y结尾的词,变y为i加es,如baby→babies等;
b.以元音字母+ y结尾的名词变复数时,直接加s变复数,如monkey→monkeys,holiday→holidays,storey→storeys(楼层), boy---boys;
4.以o 结尾的名词变复数时:
a 有生命的:tomato—tomatoes西红柿;potato—potatoes土豆,mango—mangoes,Negro---Negroes黑人,hero—heroes英雄
。(黑人英雄爱吃土豆西红柿和芒果)
b.无生命的:radio—radios 收音机 piano---pianos钢琴 zoo→zoos动物园
5.以f或fe结尾的名词变复数时:
a)去掉f,fe 加ves的名词有:
knife—knives
wife—wives wolf—wolves leaf→leaves
half→halves, life→lives , thief→thieves b)加s的名词有: belief→beliefs roof→roofs
safe→safes
6.不规则:woman—women
man---men
postman---postmen
policeman—policemen
policewoman---policewomen goose---geese鹅 child---children deer—deer小鹿
sheep—sheep绵羊 ox---oxen公牛
mouse---mice 老鼠 tooth—teeth 牙齿 foot—feet脚