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 school

onSunday.

3.His father works hard.

4.Jack's mother is a nurse.

5.The cat runs fast.

6.They like reading

books.

7.My grandpa gives me a 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，剩下的照抄，（some 改成any，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，剩下的照抄，（some 改成any，my改成your等）句号改成问号。

eg: They are in the park.

He can play the

guitar.

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 some

flowers in the vase.

6.This is my sister.

7.We are sweeping the floor.

8. We need some

masks.

9. They like making the puppet.

10. Su Hai and Su Yang

live 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 do you 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 is

it ?

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 the

earphones?

B:They are 25 yuan.

6、A: _______ is the cup?

B:It’s blue.

7、A: _______ is it

today?

B:It’s Sunday.

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?