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1、名词复数的变化规则,名词：表示人、事物或抽象概念的词叫做名词。,概念,规则变化,一、大多数情况，词尾直接加s如book-books desk-desks cat-cats newspaper-newspaperscard-cards girl-girls apple-apples,二、以s、sh、ch、x、z结尾的名词， 在词尾加esbus-buses dress-dresses brush-brushes watch-watches box-boxes buzz-buzzes( 嗡嗡声; 电话）,三、以辅音字母+y结尾的名词，y变为i再加esfamily-families baby-babi
2、es study-studies dictionary- dictionaries元音字母（a，e，i，o，u）+y结尾的名词 y不变，直接加ssubway-subways,四、词尾是f或fe时，去f或fe,加vesleaf-leaves knife-knives wolf-wolveslife-lives wife-wives thief-thieves,五、以o结尾的可加s或estomato-tomatoes potato-potatoesnegro-negroes hero-heroes记住特例；黑人英雄喜欢吃西红柿和土豆 其余o 结尾的加s photo-photos zoo-zoos
3、piano-pianos,不规则变化,一、男人女人a变e,鹅牙足oo变ee mam-mem woman-womem goose-geese tooth-teeth foot-feet二、老鼠虱子也易记，ouse变ice mouse-mice louse-lice,三、孩子加上ren,美人鱼鹿绵羊不用变child-children people-people fish-fish deer-deer sheep-sheep,ractice(练习),map- tree-book-photo-potato-watch-mouse-baby-,sheep- child-foot- knife-wife-tomato-hero-box-,
