沪教版上海牛津三年级上册英语-句型转换

第1讲改否定句【知识点】
1、2、
句子中有am/is/are/can时，直接在后面加not，其他不变，抄下来；
句子中没有am/is/are/can时，找到动词，在动词前面加don’t/doesn’t，其他不变，抄下来。

【练习题】
1、I am Mike.
否定句：____________________________________________________ 2、This is a pen.
否定句：____________________________________________________ 3、You are a boy.
否定句：____________________________________________________ 4、They can swim.
否定句：____________________________________________________ 5、I like apples.
否定句：____________________________________________________ 6、I am Danny.
否定句：____________________________________________________ 7、This is my ruler.
否定句：____________________________________________________ 8、Those are his robots.
否定句：____________________________________________________ 9、You can go to have a look.
否定句：____________________________________________________ 10、I know his name.
否定句：____________________________________________________ 11、I am a student.
否定句：____________________________________________________ 12、It is an apple.
否定句：____________________________________________________ 13、They are my books.
否定句：____________________________________________________ 14、I can see a boat.
否定句：____________________________________________________ 15、Stand up.
否定句：____________________________________________________ 16、I am in Grade 3.
否定句：____________________________________________________ 17、She is Yang Ling.
否定句：____________________________________________________ 18、We are teachers.
否定句：____________________________________________________ 19、I can draw a toy car.
否定句：____________________________________________________ 20、Jack speaks English very well.
否定句：____________________________________________________
否定回答：__________________________________________________ 4、They can swim.
一般疑问句：______________________________________________肯定回答：__________________________________________________否定回答：__________________________________________________ 5、I like apples.
一般疑问句：______________________________________________肯定回答：__________________________________________________否定回答：__________________________________________________ 6、I am Danny.
一般疑问句：______________________________________________肯定回答：__________________________________________________否定回答：__________________________________________________ 7、This is my ruler.
一般疑问句：______________________________________________肯定回答：__________________________________________________否定回答：__________________________________________________ 8、Those are his robots.
一般疑问句：______________________________________________肯定回答：__________________________________________________
否定回答：__________________________________________________ 9、You can go to have a look.
一般疑问句：______________________________________________肯定回答：__________________________________________________否定回答：__________________________________________________ 10、I know his name.
一般疑问句：______________________________________________肯定回答：__________________________________________________否定回答：__________________________________________________
第3讲改肯定句
【知识点】
1、一般疑问句改肯定句
（1）将句首的am/is/are/can放回主语后面，其它照抄，标点改成句号。

例如：Is she tall?She is tall.
（2）句首是Do、Does 的，去掉Do、Does，其它照抄，动词用原形，标点改成句号。

如果主语是第三人称单数，谓语也要改为第三人称单数形式。

例如：Do you like apples？肯定句：I like apples.
2、否定句改肯定句
（1）句子中有am/is/are/can时，直接把am/is/are/can后面的not去掉，其他照抄。

例如：I can’t run.I can run.
（2）句子中有don’t或doesn’t时，直接去掉don’t或doesn’t，其他照抄。

如果主语是第三人称单数，谓语也要改为第三人称单数形式。

例如：Don’t shut.Shut.
【练习题】
1、Is this tall boy thin?
________________________________________________________
2、Are your ears small?
________________________________________________________
3、Can Sarah clean the classroom?
________________________________________________________
4、Do you like the ducks?
________________________________________________________ 5、Is this the playground?
________________________________________________________ 6、Are you a boy?
________________________________________________________ 7、Can they swim?
________________________________________________________ 8、Does he like the dogs?
________________________________________________________ 9、I am not a boy.
________________________________________________________ 10、Sam isn’t sad.
________________________________________________________ 11、We aren’t studying English.
________________________________________________________ 12、I can’t dance
________________________________________________________ 13、Don’t open the pencil-box.
________________________________________________________ 14、He doesn’t know your name.
________________________________________________________ 15、I am not Danny.
________________________________________________________ 16、The man isn’t walking in the street.
________________________________________________________ 17、They aren’t in the classroom.
________________________________________________________ 18、Her mother can’t ride a bicycle.
________________________________________________________ 19、We don’t have lunch at 12:00 every day.
________________________________________________________ 20、Tom doesn’t walk to school.
________________________________________________________
缩写形式：____________________________________ 7、It is an apple.
缩写形式：____________________________________ 8、They are my books.
缩写形式：____________________________________ 9、I can not see a boat.
缩写形式：____________________________________
10、Do not stand up.
缩写形式：____________________________________ 11、I’m Danny.
完整形式：____________________________________ 12、This’s my ruler.
完整形式：____________________________________ 13、Those’re his robots.
完整形式：____________________________________ 14、You can’t go to have a look.
完整形式：____________________________________ 15、I don’t know his name.
完整形式：____________________________________
16、I’m in Grade3.
完整形式：____________________________________ 17、She’s Yang Ling.
完整形式：____________________________________ 18、We’re teachers.
完整形式：____________________________________ 19、I can’t draw a toy car.
完整形式：____________________________________ 20、Jack doesn’t speak English very well.
完整形式：____________________________________
1.__________（我）am a teacher.
2.My father is talking with __________（我）
3.___________（他）often plays basketball after school.
4.___________（他的）teacher is good.
5.____________（我们）buy a pair of shoes for______（他）.
6.Please pass _______（我们）the ball.
7.________（他们）are listening to the radio.
8.This is ________（我们）book.That is _________（他的）book.
9.________（他的）chair is blue.________（我们的）is yellow.
10._______（我们的）classroom is big._______（你们的）classroom is small.
11.________（他）often plays basketball after school.
12._________（他的）teacher is good.（她的）teacher is good too.
13.My book is blue._______（you）book is red.
14.Our chair is better than _________（they）chairs.
15.I will give the presents to__________（they）
第6讲名词复数变化规则
【知识点】
名词复数变化规则：
1、一般情况下，直接加s。

例如：car---cars、bag---bags、book---books
2、以s/x/ch/sh结尾的单词加es。

例如：class---classes、box---boxes、watch---watches、brush---brushes
3、以辅音字母加y结尾的单词，变y为i，再加es。

例如：baby---babies、family---families、comedy---comedies（喜剧）
4、以元音字母加y结尾的单词，直接加s。

例如：boy---boys、day---days、key---keys
5、以f/fe结尾的单词，变f/fe为v，再加es
例如：leaf---leaves、wolf----wolves、knife---knives
“小偷”（thief）的“妻子”（wife）用“刀子”（knife）和“树叶”（leaf）把“狼”（wolf）劈成了两“半”（half）
6、以o 结尾的名词，有生命的加es，无生命的加s，以oo结尾的加s。

有生命的加es。

例如，potato---potatoes、tomato---potatoes、hero---heroes（英雄爱吃土豆炖西红柿）
无生命的加s。

例如，photo---photos、radio---radios、piano---pianos。

以oo结尾的加s。

例如，kangaroo---kangaroos（袋鼠）、zoo---zoos。

7、不可数名词没有复数，以原形或/表示。

第7讲改复数句
【知识点】
对照句子，将句子中的名词和代词改成对应的复数，其他不变，按顺序抄下来即可。

例如：She is my friend.They are my friends.
I am a girl. We are girls.
【练习题】
句子单数变复数
1. This is a book.
___________________________________________
2. That is an eraser.
___________________________________________
3. It is a red apple.
___________________________________________
4. I am a boy.
___________________________________________
5. He is a teacher.
___________________________________________
6. What’s this?
___________________________________________
7. I am a tall boy.
___________________________________________ 8. She is a beautiful girl.
___________________________________________ 9. He is a strong man.
___________________________________________ 10. This is a big mouse.
___________________________________________ 11. That is a small fish.
___________________________________________ 12. It has a long tooth.
___________________________________________ 13 This is an old dog.
___________________________________________ 14. There is a big peach on the table.
___________________________________________ 15. I can sing a song.
___________________________________________ 16. It is under the table.
___________________________________________ 17. That is a short boy.
___________________________________________ 18. I like the red skateboards.
___________________________________________ 19. That monkey can climb the tree.
___________________________________________ 20. This fox is big.
___________________________________________。