单数句变复数句名词单数变复数的一般规则：　1、一般情况直接加-s eg: map--maps　2、以s, x, z, ch, sh 结尾，直接加上–es: eg: glass--glasses　3、以 f 或fe结尾，变f,fe为ves, eg: knife---knives　4、辅音字母+ y结尾，把y 变i 再加-es；eg: family--families　5、以o结尾有生命的加es, eg: hero, tomato, potato无生命的直接加s, eg: radio---radios练习题一、把下列句子变复数句1 、This is a dog.___________________________________________2、That is Jack’s book.________________________________________3、I am a student._________________________________________4、It is my pen.______________________________________________5、What is this?_____________________________________________6、He is a policeman._________________________________________7、There is a wolf in the garden._________________________________二、把下列复数句变单数句1、My books are new. ________________________________________2、These are his new friends.__________________________________3、Those glasses are on the table._______________________________4、Sophie’s shirts are white.____________________________________5、There are some desks in the classroom.________________________________________________________ 6、These are my favorite pencils.________________________________1. This is my ruler.______ ______ ______ ruler?肯定回答：Yes, ______ ______. 否定回答：_____, ______ ______.2. These are apples.______ ______ apples?肯定回答：Yes, ______ ______. 否定回答：_____, ______ ______.3. My name’s Tom.______ ______ ______ Tom?肯定回答：Yes, ______ ______. 否定回答：_____, ______ ______.4. Our sons are their teachers.______ ______ ______ their teachers?肯定回答：Yes, ______ ______. 否定回答：_____, ______ ______.5. I’m Mary.______ ______ _______?6. He’s my father.______ ______ ______ father?肯定回答：Yes, ______ ______. 否定回答：_____, ______ ______.7. She is my mother.______ ______ ______ mother?肯定回答：Yes, ______ ______. 否定回答：_____, ______ ______.8. We’re good friends.______ ______ good friends?肯定回答：Yes, ______ ______. 否定回答：_____, ______ ______.9. That’s an egg.______ ______ _______ _______?肯定回答：Yes, ______ ______. 否定回答：_____, ______ ______.10. Those are our cups.______ ______ ______ _______?肯定回答：Yes, ______ ______. 否定回答：_____, ______ ______.11. It’s mine.______ ______ ______?肯定回答：Yes, ______ ______. 否定回答：_____, ______ ______.12. They are ours.______ ______ ______?肯定回答：Yes, ______ ______. 否定回答：_____, ______ ______.13. I have a basketball.______ ______ ______ a basketball?肯定回答：Yes, ______ ______. 否定回答：_____, ______ ______.14. He has a tennis racket.______ ______ ______a tennis racket?肯定回答：Yes, ______ ______. 否定回答：_____, ______ ______.15. We have some friends in China.______ ______ ______ _______ friends in China?肯定回答：Yes, ______ ______. 否定回答：_____, ______ ______.16. They have many books.______ ______ ______ many books?肯定回答：Yes, ______ ______. 否定回答：_____, ______ ______.17. I like English.______ ______ ______ English?18. He likes apples.______ ______ ______ apples?肯定回答：Yes, ______ ______. 否定回答：_____, ______ ______.19. Tom likes playing basketball.______ ______ ______ playing basketball?肯定回答：Yes, ______ ______. 否定回答：_____, ______ ______.20. My father likes strawberries.______ ______ father ______ strawberries?肯定回答：Yes, ______ ______. 否定回答：_____, ______ ______.21. We like our friends.______ ______ ______ ______ friends?肯定回答：Yes, ______ ______. 否定回答：_____, ______ ______.22. She watches TV every day.______ ______ ______ TV every day?肯定回答：Yes, ______ ______. 否定回答：_____, ______ ______.23. I watch TV every day.______ ______ ______TV every day?肯定回答：Yes, ______ ______. 否定回答：_____, ______ ______.24. He plays basketball in the afternoon.______ ______ ______ basketball in the afternoon?肯定回答：Yes, ______ ______. 否定回答：_____, ______ ______.25. Tom goes to school in the morning.______ ______ ______ to school in the morning?肯定回答：Yes, ______ ______. 否定回答：_____, ______ ______.26. I want to be fat.______ ______ ______ ______ ______ fat?肯定回答：Yes, ______ ______. 否定回答：_____, ______ ______.27. He wants to play computer games.______ ______ ______ ______ ______ computer games?肯定回答：Yes, ______ ______. 否定回答：_____, ______ ______.28. He often does homework at home.______ ______ often ______ homework at home?肯定回答：Yes, ______ ______. 否定回答：_____, ______ ______.29. My mother loves bananas.______ ______ mother ______ _______?肯定回答：Yes, ______ ______. 否定回答：_____, ______ ______.助动词do、does练习题一、用括号里的词的适当形式填空I (like) We (want) They (watch) My parents (do)He (play) She (watch) Lucy (fish) Bob (study) Tom (know) My uncle (go) His sister (do) Mike (cry) Eric (have)二、将下列句子变成否定句和一般疑问句（13579作肯定回答，246810作否定回答）1. I have a soccer ball.2. She has a ping-pong bat.3. My parents like vegetables.4. He likes eating eggs for breakfast.5. They watch football games on TV.6. Mary’s brother watches DVDs at home.7. Mike and Bill do their homework. 8. Emma does her homework on time. 9. We go home at half past five. 10. My sister goes to school at seven.。