三年级英语名词单数变复数规则和练习及答案.doc

三年级名词单数变复数规则 1.一般情况下，直接加s 如：apple-apples pig-pigs book-books2.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）无生命的，加s . 如：photo-photos(照片) radio-radios(收音机) Piano—pianos（钢琴）7.将“oo”改为“ee的名词 如：tooth-teeth(牙) foot-feet(脚) goose-geese(鹅)8.单复同形的名词： fish-fish(此时fish当“同类鱼的很多条”讲) sheep-sheep(绵羊) paper-paper(纸) people-people(peoples表示“民族”) Chinese-Chinese(中国人) Japanese-Japanese（日本人）（2）不可数名词，如：water(水),rice(米饭),milk(牛奶),juice(果汁),bread(面包),tea(茶),orange(橙汁)9.不规则变化的名词： man-men,woman-women (记忆方法，“男人”变“女人”，“a”变“e”.延伸policeman-policemen policewoman-policem child-children（孩子） mouse-mice(老鼠） 根据中文意思变化的名词， 如：I-we (我-我们) you-you (你-你们) he/she/it-they (他/她/它-他们) this-these(这个-这些) that-those(那个-那些) am/is –are (是) has-have(有) 注：apple tree-apple trees man teacher-men teachers 以此类推 课堂练习 一．出下列各词的复数。 1.mouse______ 2.this_______ 3.watch_______ 4.child_______ 5.photo______ 6.diary_______ 7.boy________ 8.foot________ 9.fish_______ 10.thief_______ 11.man________ 12.firman___ 13.Chinese_____ 14.deer______ 15.I ____ 16.tomato______ 17.brush_____ 18.glass____ 二、选择题。 （　）１.Ｔhis _____a car . A . is B. are C. has ( ) 2. I have two _____friend and a _____friend . A .Japanese , Chinese B.Japanese , Chinese C.Japanese , Chinese ( ) 3.I want some_____. A.a fish B. fish C.fishes ( ) 4.The two _____are in the room. A.man B men C.a man ( ) 5.I clean _____i