小学英语 否定句,一般疑问句

一、肯定句改否定句的方法——一步法

1、在be动词后加not。如：is not, are not ，am not，was not，were not；

2、在can，should， will等后加not。如：can not， should not，will no t；

3、上述都没有的，在动词前加助动词否定形式don’t/doesn’t/didn’t。并把原来的动词变为原型。

4、 some 改成any。

把下面的句子变成否定句。

1.She is watching TV now.

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2.We go to school on Sunday.

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3.His father works hard.

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4.Jack's mother is a nurse.

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5.The cat runs fast.

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6.They like reading books.

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7.My grandpa gives me a hot dog.

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8.Tom often walks to school.

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二、肯定句改一般疑问句的方法——三步法

1、把be动词放在句首，剩下的照抄，（5I we改为 you

some 改成any，my改成your等）句点改成问号。

2、把can，shall， will等放到句首，剩下的照抄，（some 改成any，my改成your等）句点改成问号。

例如：陈述句: They are in the park. He can play the guitar.. 一般疑问句: Are they in the park? Can he play the guitar?

把下列句子变成一般疑问句1. I am listening to music.

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2. Mike is a student.

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3. Sarah can clean the classroom.

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4. They are in the zoo.

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5. There are some flowers in the vase.

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6.This is my sister.

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7.We are sweeping the floor.

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3、上述都没有的，在句首请助动词Do/Does/Did帮忙，剩下的照抄，（some 改成any，my改成your等）句点改成问号。并把原来的动词变为原型。

例如：陈述句: I like the ducks. He likes the dogs.

一般疑问句：Do you like the ducks? Does he like the dogs?

把下列句子改为一般疑问句。

1. We need some masks.

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2. They like making the puppet.

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3. Su Hai and Su Yang live in a new house.

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4.I put a book on my head.

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5. They sing “In the classroom”together.

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6.We play basketball on Sundays.

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7. Tom likes listening to music

1.He has short black hair.

2.She has a new schoolbag.3.It has a cute nose.

4.John has glasses.