小学英语语法：把肯定句改成否定句

把肯定句改成否定句分以下情况：

1、句中有be动词的，在be动词后加not；

2、句中有情态动词的（can ,should，must ，would），在情态动词后面加not；

3、句中没有be动词和情态动词的，在动词前加don’t或doesn’t ；

.如：I like apples. I don’t like apples.

①句中动词为原形的，加don’ｔ

②句中动词为三单式的，加doesn’t，并将三单式的动词还原成原形。

如：He likes apples. He does n’ｔ

like apples.

③时态为过去时的,要加didn’t 而且动词过去式要改为原形,

例:I went to school yesterday .→I didn’t go to school yeaterday .

4.肯定句中的some在否定句中应改为any

如：There are some students in the classroom. There are not any students in the classroom.

将下列各句改成否定句

1、Tom’s brother is walking in the park.

______________________________________________________

2、His father is driving a bus.

______________________________________________________

3、The students of Class 5 are cleaning the classroom.

______________________________________________________

4、Their dog is playing in the room.

______________________________________________________

5、Tom and Mary are friends.

______________________________________________________

6、These buses are new.

______________________________________________________

7、There are some books in the bookcase.

______________________________________________________

8、There is a banana in the box.

______________________________________________________

9、I’m a student.

______________________________________________________10、She is a farmer.

______________________________________________________ 11、Your father can ride a bike.

______________________________________________________ 12、Mr. Li can draw pictures.

______________________________________________________ 13、They can play football after school.

______________________________________________________ 14、I can go to Shanghai Zoo.

______________________________________________________ 15、You should climb the tree.

______________________________________________________ 16、We come from China.

______________________________________________________ 17、It’s time for sports.

______________________________________________________ 18、We like the mask.

______________________________________________________ 19、He likes the violin.

______________________________________________________ 20、Have some bread, Tom.

______________________________________________________ 21、Please open your books.

______________________________________________________ 22、I like Chinese、Maths、Art and PE.

______________________________________________________ 23、Listen to the radio, please.

______________________________________________________ 24、Kick the ball to me.

______________________________________________________ 25、Peter, drink some juice, please.

______________________________________________________ 26、Please watch TV.

______________________________________________________ 27、I am a bus driver.

______________________________________________________ 28、The dog can jump.

______________________________________________________ 29、Today is Monday.

______________________________________________________30、They are good friends.肯定句改成否定句