七年级可数名词单复数变化规则
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七年级可数名词单、复数练习（附加：名词单数面复数规则）一、可数名词与不可数名词的区别普通名词所表示的人或事物是可以按个数计算的，这类名词叫可数名词。
可数名词分为个体名词(表示某类人或事物中的个体，如worker, farmer, desk, factory等)集体名词(表示作为一个整体来看的一群人或一些事物，如people, family 等)。
如果普通名词所表示的事物是不能按个数来计算的，这类名词就叫不可数名词。
不可数名词分为物质名词(表示无法分为个体的物质，如meat, rice, water, milk, orange 等)抽象名词(表示动作、状态、情况、品质等抽象概念，如work, homework, time, health, friendship等)。
二、关于可数名词可数名词有单数和复数两种形式。
指一个人或一件事物时，用单数形式；指两个或多个人或事物时用复数形式。
名词由单数形式变成复数形式的规则如下：1. 一般的名词词尾直接加-s 。
如：book →books room →roomshouse →houses day →days2. 以s, ss, ch, sh, x 结尾的名词，在词尾加-es 。
但是有些以o结尾的外来词或缩写词的复数形式只加s,另外如果字母o前面是元音字母也只加s。
piano-->pianos(外来词，from Italian)photo-->photos(from greece)bamboo-->bamboos(结尾的o前面是元音字母o）cameo-->cameos（元音字母e）bus →buses glass →glasseswatch →watchesdish →dishes box →boxes3. 以"辅音字母+y"结尾的名词，要先将y改为i再加-es。
如：city →cities body →bodiesfactory →factories等等。
boy→boysplay→plays4. 以f 或fe 结尾的名词，要将f或fe改为v再加-es。
如：half →halves leaf →leavesknife →knives wife →wives5. 特例，特例常常考，要记住。
①child →children②man →men woman →womenpoliceman →policemen(规律：man →men)③tomato →tomatoespotato →potatoes注意：初中英语以o 结尾的名词变复数时只有这两个词加-es，其余的当然加-s喽！如：photo →photos ] 以O结尾的单词变复数时，有生命的加es,无生命的加s.如：photo,zoo,为无生命的，＋stomato,potato为有生命的，＋es.④foot →feet tooth →teeth注意：oo变成ee。
]⑤sheep, Chinese, Japanese单、复数同形注意：变复数时词形不变。
]⑥people单数形式表示复数意义，要求谓语动词用复数；people的复数形式peoples通常指“多个民族”。
6.集体名词：表示一群人或物的名词叫集体名词。
为便于弄清其特点，我们不妨把它们分为表示无生命的物的“类”和表示主要是由人构成的“群”的集体名词。
⑴表示“类”的集体名词，常见的有Clothing、furniture、baggage/luggage、jewelry、traffic、information、machinery、merchandise、produce、scenery①形式上总是单数，没有复数形式，作主语时，谓语用单数。
The old machinery is out of date.②不可直接与a（n）或数词连用。
表数量时用much，little，some，a piece of，an article of等：Each room has five pieces of furniture.③若需用代词，用单数代词：Do you want to see my jewelry?It is in the box.⑵表示“群”的集体名词常见的有1.People、police、cattle、poultry、vermin、clergy、militia、crew；以上的单词做主语时，谓语动词用复数：The police are looking for him2.amily、class、team、government、crowd、committee、jury、party、firm、couple、board、group、gang、enemy、union、audience、public、mankind、humanity、youth以上的词把若集体当作一个整体时，用作单数；若考虑构成这些集体的各个成员时，看作复数。
My family is a large one.我的家庭是个大家庭My family are all workers.我家里人都是工人注意：把一个集体名词看作单数或复数，要注意前后一致。
如：The team is famous for its(不能用their) long history.该对以历史悠久而闻名。
三、关于不可数名词1. 不可数名词没有复数，当它作句子的主语时，谓语动词要用单数形式。
如：The food is very fresh. 食品很新鲜。
2. 有的不可数名词也可以作可数名词，有复数形式，但他们的意义往往发生变化。
如：water (水) →waters (水域)orange (橘汁) →oranges (橘子)people（人）→peoples（民族）3. 很多不可数名词表示泛指时为不可数，表示种类时就可数，但意义大多不发生变化。
如：fruit →fruits food →foodsfish →fishes hair →hairs四、名词可数不可数“六注意”1、可数名词是可以用来计数的名词。
可数名词有单数和复数形式。
如：desk-desks, apple-apples等。
不可数名词是不可以直接用来计数的名词。
不可数名词没有复数形式，只有单数形式。
如：some bread，a little milk等。
2、单数可数名词表示泛指时，前面要用不定冠词a(an)，表示特指时，前面要用定冠词the; 而不可数名词前不能用a(an)修饰，表示特指时，前面一定要用定冠词the。
如：He is a factory worker. 他是一名工人。
No one can see air. 没有人能看见空气。
3、可数名词和不可数名词前都可以用some, any, a lot of, lots of 等来修饰，表示"一些，许多"。
如：There are some oranges on the desk. 桌子上有一些桔子。
There is a lot of water in the bottle. 瓶里有许多水。
4、可数名词前可用具体的数词来表示具体的数量。
如：two apples, four books等。
不可数名词前通常用"单位词+of"来表示数量。
如：a piece of paper, three pieces of paper等。
5、可数名词作主语时，谓语动词的单复数与主语的单复数保持一致。
如：This picture is very beautiful. 这幅画很美。
不可数名词作主语时，谓语动词要用单数形式，但是不可数名词前有复数"单位词"时，谓语动词要用复数形式。
如：There are two cups of tea on the table. 桌上有两杯茶。
6、对可数名词前的修饰语提问用how many; 对不可数名词前的修饰语提问用how much。
如：How many apples are there in the box?盒子里有多少个苹果？How much tea is there in the cup?杯里有多少茶水？注意：对不可数名词前的"单位词"的修饰语提问时，疑问词用how many。
如：How many pieces of bread are there on the plate?盘子里有多少片面包？单复数同形：deer 鹿means 手段，方法sheep 羊，绵羊series 连续，系列fish鱼species 种类Chinese 汉语(单），中国人（复）works 工厂；作品ethics 伦理学（单）；道德行为（复）statistics 统计学（单）；数据（复）名词可以分为可数名词与不可数名词，其中可数名词具有单复数的形式；而不可数名词没有可数名词复数变化规则如下：1．一般情况下，直接加-s，如：book-books, bag-bags, cat-cats, bed-beds 2．以s. x. sh. ch结尾，加-es，如：bus-buses, box-boxes, watch-watches 3．以“辅音字母+y”结尾，变y为i, 再加-es，如：family-families, strawberry-strawberries4．以“f或fe”结尾，变f或fe为v, 再加-es，如：knife-knives5.以o结尾，有生命的加es, 无生命的加s. 如：potato-potatoes. zoo-zoos 6．不规则名词复数：man-men, woman-women,policeman-policemen, policewoman-policewomen,mouse-mice child-children, foot-feet,. tooth-teeth,fish-fish, sheep-sheep people-people, Chinese-Chinese,Japanese-Japanese,当people后加上s时即peoples表示“民族”例如There are 56 peoples in China.以下词为常为不可数名词，他们的复数形式就是他们本身。
water(水) milk(牛奶) tea(茶) rice(米饭) orange（橙汁）juice（果汁）bread（面包）不可数名词的数量关系可借助量词表示，如。
a cup of tea two cups of tea 一．用所给名词的正确形式填空。
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)1．Look at those _______. (child)6.I can see a _______ standing near the door. (policeman)7．Do you want some ________ for dinner? (potato)8 In autumn, you can see a lot of _______ on the ground.(leaf)9．He has two _______.One is blue , the other is yellow.( box)10．Two ________ live in this building .( family )11．There are so many________(wolf)in the forest.12．There are three ______(chair) in the classroom.13.These _______(tomato) are red.14.______(hero) are great.15.My brother looks after two ______(baby)16.There are some ______(deer) eating the grass.17.My father likes to eat _______(potato).18.Chinese ______(people)like to eat noodles.19.I have a lot of ______(toy) in my bedroom.20.I help my mother wash _____(dish) in the kitchen.21I have two ______(pencil-box).22.There are some ______(bus)in the street.23.Peter has eight _____(foot).24.Linda has three _______(tooth).25.There are some ______(child) in the garden.26.Michael likes the ______(mouse).27.There are some ______(goose)in the river.28.My uncle and father are _____(man).29.Tom and King are _____(boy).30.Linda has three ______(tooth).二．选择填空1．They come from different ______A. countryB. countriesC. a countryD. countrys2.How many ______ do you see in the picture?A. tomatosB. tomatoesC. tomatoD. the tomato3.There are_____ birds in that big tree.A. hundreds ofB. five hundreds ofC. five hundred ofD. hundred of4.There are some ______ in these _______.A.knifes…pencil-boxesB.knives…pencils-boxC.knives…pencil-boxD.knives…pencils-boxes5. _______are good for our health .A. TomatosB. TomatoesC. Tomato6. I like to eat cake with______.7. A. cherries B. cherry C.cherrys8. ______ and ______ are not friends.A. Foxs…wolfsB.Foxes…wolfsC.Foxes…wolves8.Do you want to drink ______much?A、a milkB、milkC、milks9.This is room. It’s very big.A、Lily and Lucy’sB、Lily’s and Lucy’sC、Lily’s and Lucy10. Do you want some ______for supper?A、a potatoB、potatoesC、potatos11.In autumn，you can see a lot of___ on the ground.A、leafB、leafsC、leaves12.My sister has two ___. One is old，the other is new.A、a watchB、watchsC、watches13.There______on the wall .They are very beautiful.A. are photoesB. are photosC. is a photoD. is photos14. That’s_____art book.A. anB. aC. the D are15. There______two______in the box.A. is, watchB. are, watchesC. are, watchD. is, watches16.There is no ______ in the plate.A. applesB. orangesC. riceD. Eggs巩固练习——写出下列词对应的复数形式（注意：不可数名词不变，单复数同形的要写出来）1.I_______2.him ______3.this ________4.her ________5.wash _____6.child ______7.photo ______8.diary ______9.day________10.foot______11.book______12. dress _______13.month______14.sheep _____15.box_______16.strawberry ___17.thief______ 18.peach______19.sandwich ____ 20.man______21.woman_____22.paper______23.juice_____24.water_______k______26.rice_______27.tea_______28.leaf______29. puppy_____ _30. wish___31. knife_______ 32. fly______ 33.fox_____34.bus___ _____35. bench_____36.brush_____37.church_____38.dish_____39.ruler______40.party_____41. glass_____42.pencil______43.boy______44.zoo______45.man_____46. roof_______ 47.shop_____48. life_____ dy________50.key______51.side______52.watch______53.bamboo____54.city______55.family____56.apple_______57.eraser_____ 58.speech______59.mouse_____60.fish_____61.goose_______ 62. people _____63.ox_____64. mouth______ 65.deer _____ 66.friend______67.library_____68.oth_______69.hero______70.boss______ 71.donkey______ 72.radio _______73. horse _____74. dog _______75 monkey___ 76 text________ 77 Chinese____ 78 Japanese___79. factory _____80.half______ 81.German______82.country_____83.toy_______84. pear_________85. test______86. army_______87. hour_______88.__________89. dinosaur _____ 90.Italian____91. inventor ___92.musician____93.scientist____94.accident______95.pear______96.professor____ 97.shelf________98.season____99.trip_________100. play______四、写出下列名词的复数形式1、orange2、class3、text4、monkey5、piano6、child7、shelf8、bed9、country10、family11、toy 12、foot 13、Japanese14、radio15、photo 16、army_17、tomato___ 18、fox19、woman 20、knife练习题一、写出下列名词的复数形式1、orange oranges2、class classes3、text texts4、monkey monkeys5、piano pianos6、child children7、shelf shelves8、bed beds9、country contries10、family families11、toy toies12、foot feet13、Japanese Japanese14、radio15、photo photos16、army armies 17、tomato tomatoes 18、fox foxes19、woman women 20、knife knives22、sheep sheep二、选择填空1、There on the wall .They are very beautiful.A. are photoesB. are photosC. is a photoD. is photos2.This car made in Shanghai.A. is B .are C .were D .has3.There are four and two in the group.A. Japanese, GermenB. Japaneses, GermenC. Japanese, German C. Japanese, Germans4. That’s art book.A. anB. aC. the D are5. The boys have got already.A. two breadB.two breadsC. two pieces of breadD.two piece of bread6. The old man wants .A. six boxes of applesB. six boxes of appleC. six box of applesD. six boxs of apples7. There some in the river.A. is, fishB. are, fishesC. is, fishesD. are, fish8. There two in the box.A. is, watchB. are, watchesC. are, watchD. is, watches9. We should clean twice a day.A .our tooth B. our tooths C. teeth D. our teeth10.The _____ meeting room is near the reading room.A. teacherB.teacher’sC.teachers’D.teachers11. In Britain _____ are all painted red.A. letter boxesB.letters boxesC. letter boxD.letters box。
