把肯定句改成否定句.

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(am is are was were的，在be 动词后加not ； (1 am--- am not 缩写形式

(2 is---- is not (=isn’t (3 are--- are not (=aren’t (4 was--- was not (=wasn’t (5 were--- were not (=weren’t

2、 句中有情态动词（can, should, could）的，在情态动词后面加not ； 缩写形式

(1can--- can not (can’t

(2should--- should not (shouldn’t (3could --- could not (couldn’t

3、 句中没有be 动词和情态动词的，在动词前加d on ’t 或doesn’t 或didn ’t（注

意：d on ’t 或doesn’t 或didn ’t后面的动词要用原形。）； d on’t . 如： I like apples. →I do n’t

like apples.

does n ’t ，并将三单式的动词还原成原形。

如：He likes apples.→ He doesn’t like apples.

在动词前加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、bread, Tom.

______________________________________________________ 21、open your books.

______________________________________________________ 22、Chinese、Maths 、Art and PE.

______________________________________________________ 23、the radio, please.

______________________________________________________ 24、ball to me.

______________________________________________________ 25、drink some juice, please.

______________________________________________________ 26、watch TV.

______________________________________________________ 27、driver.

Have some Please I like Listen to Kick the Peter, Please I am a bus

______________________________________________________ 28、 The dog can jump.

______________________________________________________ 29、 Today is Monday.

______________________________________________________ 30、good friends.

______________________________________________________

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