名词的复数形式
规   
则
变
化
以辅音字母结尾
直接加 -s
book---books  cat--cats      cap----caps  pen----pens
friend---friends  mouth----mouths
以s, x, sh, ch , ss结尾的单词
在词尾加 --es
box---boxes  watch---watches  bus---buses  dish---dishes
boss(老板)---bosses
以f,fe结尾的单词
变f，fe为v加--es
leaf---leaves  knife----knives
直接加--s
roof(屋顶)----roofs
radio的复数形式以元音字母o结尾的单词
辅音字母+o
直接加--s
piano--pianos  photo--photos  zoo---zoos
直接+--es
tomato--tomatoes  potato---potatoes  hero---heroes
元音字母+o 直接加--s
radio---radios
词尾以不发音e结尾
直接加--s
cake---cakes  case---cases  nurse---nurses
词尾以y结尾
辅音字母+y 变y为i+es
baby---babies  city---cities  story----stories
元音字母+y 直接加s
boy---boys  toy----toys  key---keys 
不
规
则
变化
foot---feet  tooth---teeth    goose----geese    man----men    woman----women
policeman----policemen    ox----oxen    mouse----mice    child-----children
单复数同型
sheep----sheep    deer----deer    Chinese----Chinese  Japanese----Japanese
1、 How many _________ (sheep) can you see in the field?
2、 _______ (leaf) turn  green  when  spring comes.
3、 There are two ________(knife) on the table.
4、 The woman gave the farmer two yuan for those ________.(tomato)
5、 It’s easy to find an animal with four _______(foot).
6、 In a few ________(year) time, those mountains will be covered with trees.
7、 Why are the _______(potato) green, mom?
8、 These ___________(dictionary) are useful.
9、 There are six _________(book) in my bag.
10、 Our school has bought three _________.(piano)
名  词  所  有  格
在名词词尾加’s构成的所有格
在名词词尾+’s
the boy’s ball(这个男孩的球)
以s结尾的复数名词加 ’
the boys’ ball (男孩们的球)
不以s结尾的复数名词+’s
Women’s Day(妇女节)
Children’s Day(儿童节)
表示两人或几人共有，只在最后一个名词词尾+’s
Lily and Lucy’s room(莉莉和露西的房间)
表示两人或几人各自所有，在每个名词后加’s
Lucy’s and Mary’s room(露西的房间和玛丽的房间)
介词of+ 名词
(多用来表示无生命的东西) 
a map of China(中国地图)  two glasses of water(两杯水)    a pair of shoes（一双鞋）
a photo of my mother’s(我妈妈的一张照片 不一定是她本人的照片)   
a photo of my mother (我妈妈的一张照片 我妈妈本人的照片)
1、_______ mothers couldn’t go back to their hometown ,because they were too busy.
  A Li Lei and Lucy’s  B Li Lei’s and Lucy’s  C Li Lei and Lucy  D Li Lei’s and Lucy
2、What can I do for you?  I’d like two ________ .
  A bottles of orange          B bottles of oranges 
C bottle of orange          D bottles of the oranges
3、Susan!Today is June 1. It’s ________ Day.
  A Children  B Children’s  C the Childrens’  D Childrens’
4、There are thirty __________ in our school.
  A woman teachers          B woman’s teachers 
C women teachers            D women’s teachers
5、There are some _____ in these ______.
  A knive, pencil-boxes          B knives,pencil-box 
C knives, pencil-boxes          D knives, pencils-boxes
6、Miss Gao is a friend of _______.
  A Mary’s mothers          B Mary’s mothers 
C Mother’s of Mary        D Mary mothers
7、Where is Jim?  At ______.
  A Mr Smith  B Mr Smith’s  C the Mr Smith’s  D the Smiths
8、Jack and Jane’s _________.
  A mothers are teachers        B mother are teachers 
C  mother is teacher          D mothers is teacher
9、This is __________. Look!She is my mother’s best friend.
  A a photo of my mother      B a photo of my mother’s 
C my mother’s photo        D the photo of mother

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