名词单数变复数口诀名词单数变复数口诀(一一)规则变化规则变化名词单数变复数，直接加-s占多数；book-books;pen-pens;apple-appless,x,z,ch,sh来结尾，直接加上-es；dress-dresses;box-boxes;buzz-buzzes;watch-watches;brush-brushes词尾是f或fe，去掉f或fe再加上ves；leaf-leaves;wife-wives;knife-kniveswife-wives,knife-knives,wolf-wolvesleaf-leaves(妻子”拿着“小刀”杀了“狼”)1教育类A辅音+y在词尾，把y变i再加-es；study-studies;baby-babies;city-cities元音+y在词尾,只加s就足够boy boys ; day days; monkey monkeys词尾字母若是o，常用三个已足够，要加-es请记好，hero,tomato,potato。美国黑人和英雄爱吃土豆和西红柿。美国黑人和英雄爱吃土豆和西红柿。negro-negroes; hero-heroes; potato-potatoes; tomato-tomatoes其余o结尾的词加s, photo-photos; piano-pianos2教育类A(二二) 不规则变化不规则变化男人女人a变e，鹅足牙oo变ee；man-men;woman-women;goose-geese;foot-feet;tooth-teeth老鼠虱子也好记，ous变ic；mouse-mice;louse-lice孩子加上ren，鱼鹿绵羊不用变child-children;fish;deer;sheepthis-these(这些)I-wehe/she-theythat-those(那些)3教育类A