陈述句变否定句一般疑问句特殊疑问句及练习(改)

简单句各句式转换的方法一、肯定句改否定句的方法：一步法1、如果肯定句中已有be,则在be动词后加not。

如：is not ，are not ，am not，was not，were not；2、肯定句中如已有can，should，will等，则在其后加not。

如：cannot，should not，will not；3、肯定句中如没有上述Be动词或情态动词则先借助动词do/does/did的否定don’t/doesn’t/didn’t。

4、肯定句中如有some则改成any。

eg:把下面的句子变成否定句。

1.She is watching TV now.2.We go to schoolonSunday.3.His father works hard.4.Jack's mother is a nurse.5.The cat runs fast.6.They like readingbooks.7.My grandpa gives mea hot dog.8.Tom often walks to school.9.I have a doll.10.It is eating fish.二、肯定句改一般疑问句的方法——三步法1、肯定句中有be动词时，把be动词提到句首，剩下（some 改成any，的照抄，my改成your等）句号改成问号。

2、肯定句中已有can，shall，will等时，则把这些词放到句首，剩下的照抄，（some 改成any，my改成your等）句号改成问号。

3、如果肯定句中没有上述单词，则在句首借助动词Do/Does/Did帮忙，把后面的动词变为原形，剩下（some 改成any，的照抄，my改成your等）句号改成问号。

eg: They are in the park.He can play theguitar.Are they in the park? Can he play the guitar?I like the ducks.He likes the dogs.Do you like the ducks? Does he like the dogs? 把下列句子变成一般疑问句1. I am listening to music.2. Mike is a student.3. Sarah can clean the classroom.4. They are in the zoo.5. There are someflowers in the vase.6.This is my sister.7.We are sweeping the floor.8. We need somemasks.9. They like making the puppet.10. Su Hai and Su Yanglive in a new house. 11.I put a book on my head.12. They sing “In the classroom”together. 13.We play basketball on Sundays.14. Tom likes listening to music.三、肯定句改特殊疑问句的方法——四步法1、在一般疑问句的基础上，句首添加一个特殊疑问词即可，特殊疑问词可根据划线部分确定（即：特殊疑问词+一般疑问句构成特殊疑问句，但注意：Which, whose,how many除外，必须先在这些词后加名词，再加一般问句。

另外，用特殊疑问词后划线部分不能再出现。

）常用的疑问词有：what（什么），who（谁），whose （谁的），which（哪个），when（何时），where（哪里），how（怎样），why（为何）等。

1. what意为“什么”，用来对“事”或“职业”提问。

What is this? 这个是什么？What is your father? 你爸爸是做什么的？2. who意为“谁”，用来对“人”提问。

Who is behind the door? 谁在门后？3. whose意为“谁的”，用来对物主代词及名词所有格进行提问。

Whose bag is this? 这个包是谁的？4. which意为“哪个”，既可以对“人”提问，也可以对“物”提问。

which season doyou like best? 你最喜欢哪个季节？5. when意为“什么时候”，对时间提问。

对具体钟点提问用“what time”。

When did you arrive? 你什么时候到的？What time does the first class begin? 几点钟开始第一堂课？6. why 意为“为什么”，对原因提问。

Why are you late? 你为什么迟到?Why don’t we go to together? 我们为什么不一起去？7. where 意为“在哪里”，对地点提问。

where is lily? Lily在哪里？8. how 意为“怎样”，对方式、程度、状态等提问。

How are you today? 你今天怎么样？How do you go to school every day? 你每天怎么去学校?练一练1A: _is the boy in blue?B: He’s Mike.2、A: ____ pen isit ?B: It’s mine.3、A: _______ is the diary?B:It’s under the chair.4、A: ___ is the Chirstmas Day?B: It’s on the 25th of December.5、A: _______ are theearphones?B:They are 25 yuan.6、A: _______ is the cup?B:It’s blue.7、A: _______ is it today?B:It’s Sunda y.8、A: _______ was it yesterday?B: It was the 13th of October.9、A: _______ this red one?B:It’s beautiful.10、A: Can I have some paper and some crayons?B: _______ ? 11A:_______ is your cousin?B: He’s 15 years old. 12、A:_______ do you have dinner?B: At 6 o’clock.二、按要求变换句型1. He does well in Maths. (改为否定句)2.Mike runs as fast as Ben. （改为一般疑问句）3.Jim is good at English and Maths. （对画线部分提问）4. The policeman caught the thief. （改为一般疑问句，作否定回答）5. Turn right at the third crossing. （改为否定句）6. How can I get to the shopping centre? （改为同义句）7. Are they American cars? （改为单数）8. Don’t go along this street. （改为肯定句）9. I get to the shopping centre by bus. （对画线部分提问）10. It always rains in summer there. （改为一般疑问句，作肯定回答）11. It’s cold in winter there. （对画线部分提问）12. I like autumn best. （改为否定句）13. Su Yang is asking Ben some questions. （对画线部分提问）14. Please turn off the light. （改为否定句）15. I know his telephone number. （改为一般疑问句）16. The children have school today. （改为否定句）17. I’d like to join them.（改为一般疑问句）18. They are going to see a film tomorrow. （对画线部分提问）19. I like collecting stamps and singing. （改为否定句）20. He often cleans his bedroom. （改为一般疑问句）21. Liu Tao is watering flowers in the garden. （对画线部分提问）22. David and Mike are going to planting trees this afternoon. （对画线部分提问）23. Mary can fly. （变为一般疑问句，并作否定回答）24. He has a brother. （改为一般疑问句）25. Nancy drew some pictures yesterday. （改为否定句）。