名词单数变复数口诀•(一)规则变化•名词单数变复数,直接加-s占多数;•book-books;pen-pens;apple-apples•s,x,,ch,sh来结尾,直接加上-es;•dress-dresses;box-boxes;;watch-watches;brush-brushes•词尾是f或fe,加-s之前先变ve;•一个”狼”的”妻子”,拿着”半”片”树叶”和”架子”上的一把”刀”,要了那个”贼”的”命”•wolf,wife,half,leaf,shelf,knife,thief
life•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
•negro-negroes;hero-heroes;potato-potatoes;tomato-tomatoes•其余o结尾的词加s,photo-photos;piano-pianos•(二)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;sheep•this---these(这些)•that--those(那些)Exercises•写出下列名词复数•leaf______box_______knife_______fly______fox______bus______bench_____