名词单数变复数变化规则：
1．一般名词复数是在名词后面加上“s”，如map→maps， bag→bags，book-books等；
2．以s，x， sh， ch结尾的词加“es”，如bus→buses， watch→watches, box-boxes等；
3．以f或fe结尾的名词变复数时,去掉f， fe 加ves的名词有： half→halves knife→knives leaf→leaves wolf→wolves wife→wives life→lives thief→thieves
4．以o 结尾的名词变复数时：
a）加s的名词有（无生命）：photo→photos ，piano→pianos， radio→radios
b）加es的名词有（有生命）： potato→potatoes tomato→tomatoes
5．以辅音字母＋y结尾的词，变y为i加es，如baby→babies, family-families, study-studies等；
以元音字母＋ y结尾的名词变复数时，直接加s变复数，如monkey→monkeys， holiday→holidays， storey→storeys（楼层）；
6. oo变ee的单词：foot-feet, goose-geese,tooth-teeth；
7. a变e的单词： man-men, woman-women, policeman-policemen;
8. 复数与原形一致的单词：fish-fish, sheep-sheep, deer-deer, Chinese-Chinese, Japanese-Japanese;
9.最特殊的一个：German-Germans.
名词单数变复数的练习题
一、写出下列名词的复数形式
1、orange__________2、class ___________3、monkey__________4、piano___________
5、child ___________ 6、shelf ____________7、 bed____________ 8、country__________9、family___________10、toy__________ 11、 foot __________ 12、radio__________
13、photo__________ 14、tomato___________ 15、woman___________16、knife________
17、sheep__________18、ship__________ 19、dish___________ 20、mouse___________
二、用所给的单词的复数的正确形式填空：
1> There are three_____________(chair) in the classroom.
2> These_____________ (tomato) are red.
3> My brother looks after two_____________ (baby)
4> My father likes to eat_____________ (potato).
radio的复数形式5> Chinese_____________ (people)like to eat noodles.
6> I have a lot of _____________ (toy) in my bedroom.
7> My mother wash_____________ (dish) in the kitchen.
8> I have two_____________ (pencil-box).
9> There are some_____________ (bus)in the street.
10> Monster has eight_____________ (foot).
三、选择填空
( )1．I can see three ________ in the zoo. A monkeys B monkeys C monkey
( )2. The pig has four ________. A. foot B. feet C. foots
( )3. My two brothers are ________. A. policeman B. policemans C. policemen
( )4. I can see ten _____ in the picture. A. sheep B. dog C. pig
( )5. The _____ has three_____. A. boys, watches B. boy, watch C. boy, watches
( )6. Can you see _______on the plate? A. bread B. breads C. breades
( )7. The girl often brushes her_____ before she goes to bed. A. tooth B. tooths C. teeth
( )8. Mr Black often drink some _________. A. milk B. milks C.milkes
( )9. There are some _____on the floor. A. child B. man C. books
( )10. Lucy will has some _______. A. photo B. photos C. photoes
( )11. I am drinking two ________. A. cups of water B. cup of water C. cups of water s
( )12. The cat eats two _______ on Monday. A. mouses B. mice C. mouse
( )13. I need a pen and some _____. A. books B. desk C. chair
( )14. There are______ in the room. A. photos B. photoes C. photo
( )15. There is some _____ in the river. A. fish B. fishes C. fishs
( )16. There___ two ___in the box. A. is watch B. are watches C. are watch
( )17. We have to clean ___ every day. A.our tooth B. our tooths C. our teeth
( )18. My _____ room is next to the reading room.
A.teacher B.teacher’s C.teachers
( )19.Tom and Jim are ______. A.friends B.friend C.brother
( )20.How many_____do they have? A.picture B.pictures C.a picture
四 写出下列名词的复数形式。
1．bag _______ 2．orange _______ 3．family _______
4．wish _______ 5．shelf _______ 6．knife _______
7．key _______ 8．baby _______ 9．tooth _______
10．foot _______ 11．woman _______ 12．sheep _______
13．Japanese _______ 14．potato _______ 15．radio _______
16．child _______ 17．fish _______ 18．photo _______
19．Frenchman _______ 20．man doctor _______ 21.watch _______
22. bus _______ 23. sheep _______ 24. foot _______
五 选择填空
1. They come from different ______
A. country B. countries C. a country D. countrys
2. How many ______ do you see in the picture?
A. tomatos B. tomatoes C. tomato D. the tomato
3. They are______.
A . woman teachers B. women teachers
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