1.一般情况下,直接加s,如:apple-apples,pig-pigs,book-books等2.以s、sh、ch、x结尾的名词,加es,如:bus-buses(公车),class-classes(班级),fish-fishes(此时的fish当“鱼的种类”讲),watch-watches(手表),box-boxes(盒子),fox-foxes(狐狸)3.以元音字母+y结尾的名词,直接加s,如:boy-boys(男孩),toy-toys(玩具)4.以辅音字母+y结尾的名词,去y改ies,如:family-families(家庭),strawberry-strawberries(草莓)5.以f或fe结尾的名词,去f或fe改ves,如:wife-wives,knife-knives,wolf-wolves (这三个词的记忆口诀-“妻子”拿着“小刀”杀了“狼”)6.以”o结尾的名词:(1)有生命的,加es,如:potato-potatoes,tomato-tomatoes,hero-heroes(这 三个词的记忆口诀-”英雄“爱吃”土豆“和”西红柿“)(2)