英语名词单数变复数主要有以下规则：一、绝大多数的可数名词的复数形式，是在该词末尾加上后辍-s。
读音变化：结尾是清辅音读[s]，结尾是浊辅音或元音读[z]。
例：friend→friends; cat→cats; style→styles; sport→sports; piece →pieces二、凡是以s、z、x、ch、sh结尾的词，在该词末尾加上后辍-es构成复数。
读音变化：统一加读[iz]。
例：bus→buses; quiz→quizzes; fox→foxes; match→matches; flash →flashes box →boxes; watch →watches; actress →actresses; clas s →classes; coach（长途车）→coaches; dress →dresses; sandwic h →sandwiches; toothbrush →toothbrushes; waitress（女侍者）→waitresses三、以辅音字母+y结尾的名词，将y改变为i，再加-es。
读音变化：加读[z]。
例：candy→candies; fairy→fairies; lady→ladies; story→stories strawberry →strawberries; baby →babies; puppy →puppies; libr ary →libraries; dictionary →dictionaries; cherry →cherries; acti vity →activities四、以-o结尾的名词，如果不是外来词或缩写，就加-es，否则加-s 构成复数。
（有生命的加es，无生命的加s）读音变化：加读[z]。
例：tomato→tomatoes; potato→potatoes; bingo（彩票式游戏）→b ingoes反例：piano→pianos（外来词）; photo→photos;五、以-f或-fe结尾的名词，多为将-f或-fe改变为-ves，但有例外。
读音变化：尾音[f]改读[vz]。
例：knife→knives; life→lives; leaf→leaves; staff(员工)→stave s; sc arf（围巾）→scarves目前搜集的直接加s：roof-roofs, belief-beliefs, safe-safes,chief（负责人）-chiefs这几个可变可不变：scarf-scarfs，六、以-us结尾的名词（多为外来词），通常将-us改变为-i构成复数。
读音变化：尾音[Es]改读[ai]，其中[kEs]要改读为[sai]，[gEs]要改读为[dVai]。
例：abacus（算盘）→abaci; focus（焦点）→foci; cactus（仙人掌）→cact i;七、部分单词的复数形式不变。
读音变化：保持原音。
例：fish→fish; sheep→sheep; cattle→cattle; deer→deer;八、极少数单词，其复数形式没有任何规律。
读音变化：没有规律。
例：man→men; woman→women; child→children; person→people; ox→oxen foot →feet; goose →geese; mouse →mice; tooth →tee th;九、若表达具体数目，要借助数量词例：pair(对，双); suit(套); a pair of glasses; two pairs of trouser s十、另外还有一些名词，其复数形式有时可表示特别意思，例：goods货物，waters水域，fishes（各种）鱼十一、一些单数词得加en才能变成复数词：例：ox→oxen; child→children; brother（用于教堂）→brethren 十二、一些单数词得改头换面一番,才能变成复数词例：analysis→analyses分析; basis→bases基础; da tum→data数据; foot→feet; goose→geese; louse虱子→lice; man→menmouse→mice; medium→media/mediums媒介; tooth→teeth; woma n→women英语专项测试名词复数（总分100分）一、请写出下列词的复数形式。
(1’*50=50’)city _____ _zoo ______country _____ tooth ____mouse __ boy____________ broom ___________car ____tree ______horse ______ bus______________ fox _____branch ____ baby _____ family _____ dish _____radio _____ photo _____ piano _____ knife _____leaf _____ life _____ thief _____ _man _____woman _____ child ___ foot this _____________ watch___________ diary____________ day____________ book____________ dress____________ sheep___________ tea_____________ box___________ strawberry_________ peach__________ sandwich__________ paper_________ juice__________ water____________ milk___________ rice__________people CD ox___________deer____________ fish___________二、单项选择(1’*10=10’)( )1. The __ in our yard are very beautiful.A. clothB. waterC. flowers( )2. Tom is one of the Chinese _____ in our school.A. boyB. boysC. boies( )3. A cat has four ____ , doesn't it?A. footsB. feetC. feets( )4. There are three ____ and five _____ in the room.A. American, Japanese B Americans, Japanese C. American, Japanese ( )5. Can you see nine ____ in the picture?A. fishB. bookC. horse( )6. The _____ has two______.A. boy; watchB. boy; watchesC. boys; watch( )7. The _____ are flying back to their country.A. GermanyB. GermanysC. Germans( )8. The girl brushes her _____ every day before she goes to bed.A. toothsB. teethC. teeths( )9.I saw many _____ in the street.A. peoplesB.peopleC.people’s( )10.The green sweater is his _________.A.brotherB.brothersC.brother’s三、选择填空(1’*10=10’)( )1. They come from different ______A. countryB. countriesC. a countryD. countrys ( )2. How many ______ do you see in the picture?A. tomatosB. tomatoesC. tomatoD. the tomato ( )3. They are______.A . woman teachers B. women teachersC. women teacherD. woman teacher( )4. Would you like _______ ,please?A. two glass of waterB. two glasses of waterC. two glass of watersD. two glasses of waters ( )5. Most of ______ live in _______.A. Germans, GermanB. German, GermenC. Germen, GermanyD. Germans, Germany( )6. There are some ______ in these _______.A. knifes pencil-boxesB. knives pencils-boxC. knives pencil-boxD. knives pencils-boxes ( )7. ______ like ______ by air.A. Greens, travellingB. The Green, travelingC. The Greens, travelD. The Greens, traveling( )8. I wonder why ______ are interested in action films(武打片).A. the peopleB. peopleC. peoplesD. the peoples ( )9. There is no ______ in the plate.A. applesB. orangesC. riceD. eggs( )10.My uncle has three _______.A.childB.childsC.childrenD.childrens四.填入所给名词的正确形式(2’*10=20’)1. I have two____________ (knife)2. There are many ___________ here. (box)3. There are many ___________ on the road. (bus)4. A few ___________ are drawing on the wall. (boy)5.The ______________ are playing football now. (child)6.Please take two _______________ for me. (photo)7.I like the red ________________.(tomato)8.Would you please clean your _____________ now? (tooth)9.Do you want some _________? (milk)10.There are ten __________ _________in our school. (woman teacher)答案：一、请写出下列词的复数形式。