1、一般情况下直接在词尾加s
例：book---books apple---apples
orange---_________ tiger---_________ girl---__________ banana---_________ lemon---__________ pencil---_________ 2、以s,x,sh,ch结尾的单词，加es
例：bus---buses box---boxes fish---fishes beach---beaches class--- fox--- beach--- watch--- 3、以f或fe结尾的单词，把f或fe变成v加es 例：leaf---leaves
knife--- (刀) wife--- （妻子） 4、以辅音字母加y结尾的单词，把y变i加es 例：fly---flies
butterfly---_______ library---_______ baby---_____ puppy---______ 1）.填入所给名词的正确形式 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) 2）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. There are some ______ in these _______.
A.knifes„pencil-boxes B.knives„pencils-box C.knives„pencil-box D.knives„pencils-boxes 4. There is no ______ in the plate.
A. apples B. oranges C. rice D. eggs 5. _______ are good for our health. A. Tomatos B. Tomatoes C. Tomato 6. I like to eat cake with ______.
A. cherries B. cherry C.cherrys 7. ______ and ______ are not friends.
A. Foxs„wolfs B. Foxes„wolfs C. Foxes„wolves 8. Do you want to drink much ?
A、a milk B、milk C、milks 9. This is room. It’s very big.
A、Lily and Lucy’s B、Lily’s and Lucy’s C、Lily’s and Lucy 10. Do you want some for supper?
A、a potato B、potatoes C、potatos 11. In autumn，you can see a lot of on the ground.
A、leaf B、leafs C、leaves 12. My sister has two . One is old，the other is new.
A、a watch B、watchs C、watches 13.There on the wall .They are very beautiful.
A. are photoes B. are photos C. is a photo D. is photos 14. That’a art book.
A. an B. a C. the D are 15. There two in the box.
A. is watch B. are watches C. are watch D. is watches 3）请用括号中名词的复数形式填空 1． Look at those _______. (child)
2． I can see a __________ standing near the door. (policeman) 3． Do you want some ________ for dinner? (potato)
4． In autumn, you can see a lot of _______ on the ground.(leaf) 5． He has two _______.One is blue , the other is yellow.( box) 6． Two ________ live in this building .( family ) 4）选择正确的词形
1． How many (radioes, radios) can you see? 2． There are 36 (boys, boies) in my class. 3． Look at those (sheeps, sheep). 4． I don’t want (a, an) old cup. 5． Give me that (box, boxes), please. 5）将以下单复数句进行转换
1． This is a knife. ______________________________________ 2． That is a tomato. ______________________________________ 3． That child is very good._____________________________________ 4 . These are mice. ______________________________________ 5． Those are children. ______________________________________ 6)写出下列单词的复数
I _________him _________this ___________her ______ watch _______child _______photo ________diary ______ day________ foot________ book_______ dress ________ tooth_______ sheep ______box_______ strawberry _____ thief _______yo-yo ______ peach______ sandwich ______ man______ woman_______ paper_______ juice_____ water________ milk________ rice__________ tea_______
orange---_________ tiger---_________ girl---__________
banana---_________ lemon---__________ pencil---_________ class--- fox--- beach--- watch--- knife--- (刀) wife--- （妻子）
butterfly---_______ library---_______ baby---_____ puppy---____
二、选择单词的适当形式填空，写在横线上。
1. It’s so hot. I want to eat an ________. Do you like ______?( ice-cream, ice creams) 2.There are many_________(animal,animals) in the zoo.I like ________.( giraffe,giraffes)
3. ---Can I help you? ---Three _______ (doll, dolls),please.
4. I like____________( strawberry, strawberries) because they are sweet and juicy. 5. I don’t like _______(fly, flys,flies) because they are ugly and dirty(脏的). 6. Look at the_______(baby,babys,babies). They are so cute.
7. I like ________(water,waters) because we drink water everyday.
8. These _________(boy,boys,boies) like _________.( monkey,monkeys,monkeies) 9.Brush your________(tooth,teeth),Kitty. It’s time for bed. 三、有些单词就像孙悟空一样会变身，你知道他们是怎么变得吗？现在看看这些变身后的单词，你能把他变身以前的样子写出来吗？
lions---_______ strawberries---________ roses---_________ teeth---_______ dragonflies--- pears---_________
句子单数变复数的练习 1. This is a chair. 2. Is that a pencil-box? 3. He is a good boy. 4. Is it a ruler ?
5. I am an English teacher. 6. This is my new book.
7. That blue eraser is mine. 8. What’s this in English? 9. I am a driver.
10. She has a pencil sharpener. 11. Is it a pear ? 12. This is my pen. 13. He likes his bike. 14. Is that an apple tree? 15. He is a man doctor.
16. What’s your telephone number? 17. Where is your computer? 18. Are you in Class One?
19. --Is that his brother? --No, it isn’t.
20. --Is she my teacher? --Yes, she is. 21. I am at home.
22. He can have a look at this picture. 句子单数变复数答案
【专家解析】单数句变复数句涉及名词和动词的人称和数，人称代词、物主代词、指示代词的人称和数的问题。单数句变为复数句时，上述各类词都要做相应变化，其它词类不变。当然，也有一些特殊的情况。
1. These are (some) chairs.
2. Are those (any) pencil-boxes?
■在把单数句子变为复数句子时，指示代词需要作相应的变化： this→these, that→these。第1、2小题即是如此。 3. They are (some) good boys. 4. Are they (any) rulers? 5. We are English teachers.
■在把单数句子变为复数句子时，人称代词需要作相应的变化： 主格：I→we, you→you, he/she/it→they
宾格：me→us, you→you, him/her/it→them。第3、4、5小题即是如此。
6. These are our (my) new books. 7. Those blue erasers are ours.
■在把单数句子变为复数句子时，物主代词需要作相应的变化： 形容词性物主代词：my→our, your→your, his/her/its→their
名词性物主代词：mine→ours, yours→yours, his/her/its→theirs。第6、7小题即是如此。
8. What are these in English? 9. We are (some) drivers.
■在把单数句子变为复数句子时，连系动词be需要作相应的变化： (be)am/is→are。第8、9小题即是如此。 10. They have (some) pencil sharpeners. 11. Are they (any) pears?
■a/an表示“一个”，只能用在单数可数名词之前，在把单数句子变为复数句子时，一定要把a/an去掉，或改为some/any。第10、11小题即是如此。
12. These are my pens. 13. They like their bikes.
■在把单数句子变为复数句子时，一般情况下，形容词性物主代词不需要改为复数形式。第12小题即是如此；但是当句中形容词性物主代词与句中的主语一致时，该物主代词应随主语人称的改变而变化，仍要保持一致。第13小题即是如此。
14. Are those (any) apple trees. 15. They are (some) men doctors.
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