英语肯定句变否定句练习

专题: 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 ；

① 句中动词为原形的，加don’t .如： I like apples. I don’t like apples.

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 doesn’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 yesterday .

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

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精选文档编辑

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

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2、There are some books in the bookcase.

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

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4、 I’m a student. 5、Stop and wait at a red light.

____________________ _____________________________

6、Your father can ride a bike.

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7、They can play football after school.

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8、We come from China.

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精选文档编辑

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9、 Touch the door.

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将下列否定句变肯定句

1、Don’t go at a red light. 2、Don’t run on the ferry.

______________________ _________________________

3、I don’t go to school. 4、The ferry doesn’t work.

______________________ _________________________

5、Don’t turn left on the road.

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