陈述句变否定句

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陈述句变否定句

一、把下列陈述句改为否定句。

1.We go to school on Sunday.

We don’t go to school on Sunday.

答案解析:陈述句改为否定句时,如果句中没有be动词,找主语,如果主语不是第三人称单数,时态是一般现在时,在主语后加don’t。

2.We’ll go to the park this afternoon.

We won’t go to the park this afternoon.

答案解析:陈述句改为否定句时,will的否定形式是won’t。

3.I am watching TV now.

I am not watching TV now.

答案解析:陈述句改为否定句时,当句中有be动词时,在be动词后not。

4.Jack’father is a teacher.

Jack’father isn’t a teacher.

答案解析:陈述句改为否定句时,当句中有be动词时,在be动词后not。

5.The dog runs fast.

The dog doesn’t run fast.

答案解析:陈述句改为否定句时,如果句中没有be动词,找主语,如果主语是第三人称单数,时态是一般现在时,主语后加doesn’t。

6.The baby can speak.

The baby can’t speak.

答案解析:陈述句改为否定句时,句中有can,may等时,在主语后直接加not。

7.There is some water in the bottle.

There isn’t any water in the bottle.

答案解析:陈述句改为否定句时,当句中有be动词时,在be动词后not,some要改为any。

8.Her mother works hard.

Her mother doesn’t work hard.

答案解析:陈述句改为否定句时,如果句中没有be动词,找主语,如果主语是第三人称单数,时态是一般现在时,主语后加doesn’t。

9.They like reading books.

They don’t like reading books.

答案解析:陈述句改为否定句时,如果句中没有be动词,找主语,如果主语不是第三人称单数,时态是一般现在时,在主语后加don’t。

10.We had lessons this morning.

We didn’t have lessons this morning.

答案解析:陈述句改为否定句时,如果句中没有be动词,找主语,如果主语不是第三人称单数,时态是一般过去时,在主语后加didn’t。

11.I have a doll.

I don’t have a doll.

答案解析:陈述句改为否定句时,如果句中没有be动词,找主语,如果主语不是第三人称单数,时态是一般现在时,在主语后加don’t。

12.It is a fish.

It isn’t a fish.

答案解析:陈述句改为否定句时,当句中有be动词时,在be动词后not。

13.They speak English.

They don’t speak English.

答案解析:陈述句改为否定句时,如果句中没有be动词,找主语,如果主语不是第三人称单数,时态是一般现在时,在主语后加don’t。

14.She can clean the bedroom.

She can’t clean the bedroom.

答案解析:陈述句改为否定句时,句中有can,may等时,在主语后直接加not。

15.I have some money in my pocket.

I don’t have any money in my pocket.

答案解析:陈述句改为否定句时,如果句中没有be动词,找主语,如果主语不是第三人称单数,时态是一般现在时,在主语后加don’t,some要改成any。

陈述句变否定句的练习题

I.Be 动词

1.He is a boy.

_______________________________________________

2.I am your friend.

_______________________________________________

3.My sister is a beatiful girl.

_______________________________________________

4.My mother is a worker.

_______________________________________________

5.They are in the classroom.

_______________________________________________

6.There are some books on the bookshelf.

_______________________________________________

7.I was at home yesterday.

_______________________________________________

8.They were in Beijing ten years ago.

_______________________________________________

9. I am looking for a job recently.

______________________________________________

10. The students are playing basketball in the playground. ______________________________________________

II.情态动词

1.Lucy will be back in a week.

______________________________________________

2.She can sing a song and draw a picture.

______________________________________________

3.You can use the dictionary.

______________________________________________

4.Peter need go home tomorrow.

______________________________________________

5.You should line up when you wait for a bus.

______________________________________________

6.We need learn something to cook.

______________________________________________

7.I can write a book.

______________________________________________

8.You should say “Sorry” to somebody who you hurt him. ______________________________________________

9.He must stay at home to finish his homework.

______________________________________________

10. I can go to Shanghai Zoo.

______________________________________________

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