可数名词和不可数名词复数变化规则
英语中的名词指的是一种抽象的或者具体的事物，它有可数和不可数之分。所谓可数名词指的就是在数量上可以计数，可以数出数量的事物；所谓不可数名词是指不能以数目来计算，不可以分成个体的概念、状态、品质、感情或表示物质材料的东西。
一、可数名词在它之前可以加上冠词a/an（以元音字母a,e,i,o,u开头的字母前冠词用an)。而不可数名词前面是不可以直接加冠词的。可数名词复数变化规律如下：
a. 一般情况下，直接加 -s，如：book-books, bag-bags, cat-cats, bed-beds ；读音：清辅音后读[s]，浊辅音和元音后读[z]。b．以s,x,ch,sh结尾，加-es，如：bus-buses, box-boxes, brush-brushes, watch-watches ；读音：[iz]。c．以“辅音字母+y”结尾，变y为i, 再加-es，如：family-families, baby-babies 婴儿 ；读音：[z]。
以“元音字母+y”结尾，直接加-s，如：monkey-monkeys,toy-toys ; 读音：[s]。d．以“f或fe”结尾，变f或fe为v, 再加-es，如：knife-knives, leaf---leaves树叶；读音：[z]。e．以“o”结尾的词，分两种情况
1）有生命的加-es 读音：[z] 如：mango-mangoes，tomato-tomatoes ，hero-heroes
2) 无生命的加-s 读音：[z] 如：photo-photos，radio-radios
f. 以ce,se,ze,de,ge结尾，加-s，如：exercise-exercises，读音：[z]。
g. 不规则名词：小老鼠爬灯台，偷油吃下不来。 男人当警察，保护妇女跟儿童；
英国人的牙咬了法国人的脚； 养了一头日本羊，送给了中国人；
养了一头鹿跟鹅，卖给了瑞士人。
man-men, woman-women, policeman-policemen, policewoman-policewomen,
goose---geese鹅，mouse(老鼠）-mice, child-children, foot-feet, tooth-teeth, ox-oxen(公牛）
h. 除此之外，还有一部分名词单复数同形，如： fish鱼，deer鹿，sheep绵羊,news 新闻，goods 商品，fish，people 人，human人类
i. 有一些名词则只有复数形式：trousers裤子，pants裤子，shorts短裤 glasses眼镜，compasses圆规，scales天平，pliers钳子，clips剪子
j. “某国人”的复数有三种类型：
（1）Chinese, Japanese, Swiss 三国人单数复数同形，不需加s；
（2）Englishman, Frenchman, Dutchman复数要把 man 变为men；
注意：German的复数是Germans,它的man不是词根，而是由Germany演变过来的。
（3）其他各国人以–an, -ian结尾的均直接加s。如：Americans, Australians, Indians等。
可依照这个口诀记忆：中日瑞士均不变，英法荷兰都要变，其他”s”加后面。
可数名词不可数名词复数规则练习题
一、 1、orange 2、class 3、text
4、monkey 5、piano 6、child
7、shelf 8、bed 9、country
10、family 11、toy 12、foot
13、Japanese 14、radio 15、photo
16、army 17、tomato 18、fox
19、woman 20、knife 22、sheep
二、 1. house __________ 2. village ____________3. map ___________4. orange _____________
5. bag _________ 6. exercise ___________ 7.brush __________ 8. family _______________
9. bus __________ 10. city __________ 11. box __________ 12. baby ______________
13. class ________14. factory ________15. glass ___________16. dictionary _____________
17. watch __________18. woman _________19. match ___________20. man _____________
21. wish _______22. German _________23. tomato _______24. policeman _______________
25. kilo _________26. human _______27. potato ___________28. Chinese ______________
29. shelf __________30. Japanese _______31. leaf _________ 32. American ____________
33. life _________34. tooth _______35. wife ___________36. foot _______________
37. knife _________38. sheep ____________39. half _____________ 40.scarf____________
41.postman___________43.staff__________box_________pencil__________watch________
star____________door__________bag______
window________________bowl___________book_________dog___________cat__________
tree______eye___________flower_________chair_________people_______girl____________
man_________ear___________woman__________policeman__________ policewoman_________
tooth___________goose_____________doctor___________ teacher___________child_________
student___________photo______________map____________picture__________ desk__________
life____________leaf_______________half____________shelf_______________wolf___________ bird_____________panda___________lion______________fish___________deer_________-
sheep________candy_____________family___________baby_____________toy_________
car__________bus__________cup____________bottle_____________ lake____________
hill___________wall_____________stamp____________Chinese_________festival_____________
mountain____________floor__________noodle__________fruit_______________dumpling________
apple_________pear_________vegetable___________ grape_______________banana___________
cherry____________watermelon______________orange____________ox___________foot________
arm_________leg_________necklace_________game____________computer___________
mouse_________fish_________ tomato__________potato__________onion____________
cabbage__________plane________kite_________ship________chopstick_________
spoon____________cloth____________pant____________shirt_________hat_________
cap___________sweater____________sock____________gift____________eraser__________
present________lantern___________sister__________brother__________light_________key______monkey___________tiger___________rabbit_________snake___________ animal__________
frog__________shoe_________knife____________an____________glass____________
rose____________brush________bear_________son_________uncle___________aunt_________
错题集
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