小学四年级 名词单复数.doc

小学四年级 名词单复数1.一般情况下,直接加s,如：apple-apples,pig-pigs,book-books等课中实例：bottles,blouses,centres,chocolates,classmates, uncles, fires, engines, homes, mooncakes, noodles, nurses, peddles,pictures, post offices, riddles, snakes, spiders, stones2.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)课中实例： wishes3.以元音字母+y结尾的名词,直接加s,如：boy-boys(男孩),toy-toys(玩具)实例：stray-strays 迷失者（stray的复数形式）stay-stays 停留；依靠；妇女胸衣（stay的复数）key-keys 钥匙why-whys 理由；令人费解的问题（why的复数）pay-pays 报酬（pay的复数）ray-rays 光线（ray的复数）fay-fays 小仙女；妖精way-ways keysmonkeysjay-jays 鸟,松鸡；橿鸟（jay的复数形式）4.以辅音字母+y结尾的名词,去庭),strawberry-strawberries(草莓) y改ies,如：family-families(家课中实例： aviaries5.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”)课中实例： bookshelves6.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“) negroes nir（2）无生命的,加s,如：photo-photos(照片),radio-radios(收音机)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：（1）fish-fish(此时fish当“同类鱼的很多条”讲),sheep-sheep(绵羊),paper-paper(纸),Chinese-Chinese(中国人),Japanese-Japanese(日本人),people-people(peoples表示“民族”)（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：（1）man-men,woman-women (记忆方法-“男人”“女人”将a改e) 延伸：policeman-policemen,policewoman-policemen（2）child-children（孩子）（3）mouse-mice(老鼠）（4）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）写出下列名词的复数形式：I this that watch child photo diary(日记) day(天)foot book dress(连衣裙) tooth sheep box strawberry wolf peach yo-yo(悠悠球) sandwich man woman paper water juice tea mouse There are 56 (people)in China小学四年级英语单数句和复数句知识要点精读 口诀：单数句子变,变化规则要记住。名词代词要变化,am, is要变are。this, that变成啥,these, those来替它。he, she, it要变啥,全部变they不用怕。I要变we莫落下,名词后面把s/es加。名前冠词去掉它,其余成分原样加。具体注意下面的六要素：1.单数主格人称代词要变成相应的复数主格人称代词,即Iwe; youyou; she, he, itthey。如： She is a girl