人教版英语七年级上册关于否定句知识及练习题(含答案)

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人教版英语七年级上册关于否定句知识及练习题(含答案)

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人教版英语七年级上册关于否定句相关知识及其练习巩固
在英语试题中,有一种题型叫做句型转换,包括同义句、对划线部分提问、改为一般疑问句、否定句、做肯定或否定回答、合并句子等。今天,我们给大家讲一讲如何变为否定句。
关于否定句的构成。
含有be动词的陈述句变为否定句,在be(is \ am\ are)后面加上not , 即is not = isn’t ; are not = aren’t ; I am not = I’m not 等等。
例如:I’m in Class 1 , Grade 7.我在七年级一班。
I’m not in Class 1 , Grade 7. (否定句)我不是在七年级一班。
又如:The girl is my sister. 这个女孩是我的妹妹。
The girl isn’t my sister. (否定句)这个女孩不是我的妹妹。
再如:Tom and Alice are classmates. 汤姆和爱丽丝是同学。
Tom and Alice aren’t classmates.(否定句) 汤姆和爱丽丝不是同学。
练习巩固:举一反三
(1)、I am Lily’s friend. (改为否定句) I _______ _______ Lily’s friend.
(2)、Mr. Brown is my English teacher. (改为否定句)
Mr. Brown ________ my English teacher.
(3)、They are my parents. (改为否定句) They ________ my parents.
参考答案:1、am not 2、isn’t 3、aren’t
含有情态动词can的否定句,直接在can后面加上not.
例如:I can say the word “ruler”. 我会说ruler这个单词。
改为否定句:I can’t say the word “ruler”. 我不会说ruler这个单词。
含有实义动词的陈述句变为否定句,只需要在动词前面加don’t(主语不是第三人称单数)或者doesn’t(主语是第三人称单数),并将动词还原(用原形)即可。
例如:I have some good books. 我有一些好书。(改为否定句)
I don’t have some good books. 我没有一些好书。
又如:Tom has a big family. 汤姆有一个大家庭。(改为否定句)
Tom doesn’t have a big family. 汤姆没有一个大家庭。
举一反三——活学活用(根据要求完成句子)
That sounds good. 那个听起来不错。(改为否定句)
That _________ _________ good.
Tom has some interesting books . 汤姆有一些有趣的书籍。(改为否定句)
Tom __________ _________ __________ interesting books .
They play volleyball very well. 汤姆排球打得很好。(改为否定句)
They ________ _________ volleyball very well.
Alice has a tennis ball. 爱丽丝有一个网球。 (改为否定句)
Alice __________ _________ a tennis ball.
They like playing basketball in P.E. class. 他们喜欢在体育课上打篮球。(改为否定句)
They ________ _________ playing basketball in P.E. class.
参考答案:
doesn’t; sound 2、doesn’t ; have ; any (特别注意:some 用于肯定句,当改为否定句时要改成any) 3、don’ t ; play 4、doesn’t ; have 5、don’t like
二、关于实义动词的陈述句变为否定句需要注意的是:
1、陈述句一定要注意主谓一致(主语第三人称单数,谓语动词用第三人称单数;主语不是第三人称单数,谓语动词用原形)。例如:I have some great hats. 我有一些极好的帽子。Grace has some cousins. 格蕾丝有一些表姐。
2、否定句是由助动词帮助来构成的,助动词后面动词要用原形,即don’t + 动词原形(用于主语不是第三人称单数时)以及doesn’t+动词原形(用于主语是第三人称单数时)。例如:I don’t know what to do next. 我不知道接下来该做什么?又如:The boy doesn’t play sports after school. 这个男孩放学后不做运动。
举一反三——活学活用(根据要求完成句子)
They have some ping-pong balls. (改为否定句)
They ________ _________ _________ ping-pong balls.
Mr. Smith teaches us Chinese. (改为否定句)
Mr. Smith ___________ ___________ us Chinese.
Jane likes eggs and milk for breakfast. (改为否定句)
Jane ________ _________ eggs or milk for breakfast.
Bob and his father play computer games together(一起). (改为否定句)
Bob and his father _________ __________ computer games together.
She has three soccer balls. (改为否定句)
She _________ __________ three soccer balls.
参考答案:
don’ ; have 2、doesn’t ; teach 3、doesn’t ; like 4、don’t ; play
doesn’t ; have
练一练:巩固所学
She is a girl. (改为否定句)She ________ ________ a girl.
I have a red pen. (改为否定句) I ________ _________ a red pen.
Tom has a green jacket. (改为否定句) Tom ________ ________ a green jacket.
They play basketball. (改为否定句) They _______ _________ basketball.
Bob plays computer games every day (改为否定句)
Bob __________ _____________computer games every day.
She can eat bananas after class. (改为否定句)
She ______ _______ eat bananas after class.
Tom likes his English class. (改为否定句)
Tom ________ ________ his English class.
I know her name. (改为否定句)
I _________ _________ her name.
She asks me about my phone number. (改为否定句)
She ________ ________ me _________ my phone number.
They are in the same school. (改为否定句)
They ________ in the same school.
参考答案:
is ; not 2、don’t ; have 3、doesn’t ; have 4、don’t ; play 5、doesn’t ; play
6、can not 7、doesn’t ; like 8、don’ t ; know 9、doesn’t ; ask ; about 10、aren’t
注意解题步骤:
找be动词,在后面加上not即构成否定句。
找情态动词can,在后面加上not即构成否定句。
如果既没有be动词,又没有情态动词,则观察原句的动词,如果是原形,则在其前面加上don’t即可;如果原句的动词是第三人称单数,则在其前面加上doesn’t,加了助动词,动词还原。
以上就是人教版英语七年级上册关于否定句的相关知识,希望对你有用。

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