英语中的肯定(否定)句怎样改

肯定句变否定句的基本方法

动词be根据不同的人称和时态可以有am, is, are, was, were等不同形式，可用作连系动词(表示“是”、“在”等)和助动词(用于构成进行时态和被动语态等)，但不管何种情况，构成否定式时，一律在其后加not：

I’m old, but you’re young. 我老了，但你还年轻。

→I’m not old, but you’re not young. 我还不老，但你不年轻了。

He was reading and I was writing. 他在读，我在写。

→He was not reading and I was not writing. 他没有在读，我没有在写。

动词have根据不同的人称和时态可以有have, has, had等形式，可以用作实意动词和助动词，分以下情况讨论：

1.用作实意动词表示状态，如表示拥有、患病或用于have to表示“必须”等，在构成否定式时可以直接在其后加not，也可根据情况在其前使用don’t, doesn’t, didn’t：

He has a car. 他有辆小汽车。

→He hasn’t a car. / He doesn’t have a car. 他没有小汽车。

He had some dictionaries. 他有一些词典。

→He hadn’t any dictionaries. / He didn’t have any dictionaries. 他没有词典。

You have to go with him. 你必须同他一起去。

→You haven’t to go with him. / You don’t have to go with him. 你不必同他一起去。

【注】have to构成否定式时以在其前加don’t等较为常见。

2.用作实意动词表示动作，如表示“吃(=eat)”、“喝(=drink)”、“拿(=take)”、“收到(=receive)”、“度过(=spend)”等，构成否定式时不能直接在其后加not，而应根据情况在其前使用don’t, doesn’t, didn’t：

He had some cake for breakfast. 他早餐吃了些蛋糕。

→He didn’t have any cake for breakfast. 他早餐没有吃蛋糕。(不能用had not)

We had a good holiday. 我们的假期过得很愉快。

→We didn’t have a good holiday. 我们的假期过得不愉快。(不能用had not)

3.用作助动词构成完成时态，其否定式只能在其后加not：

I have read the book. 我读这本书。

→I have not read the book. 我还没读这本书。

He had left when I arrived. 我到达时他已离开了。

→He hadn’t left when I arrived. 我到达时他还没有离开。

情态动词的否定式一般在其后加not构成：

I can finish the work in an hour. 我能在1小时内完成这工作。

→I can’t finish the work in an hour. 我不能在1小时内完成这工作。

You must go with us. 你必须同我们一起去。

→You mustn’t go with us. 你不能同我们一起去。

We should help them. 我们应该帮助他们。

→We shouldn’t help them. 我们不必帮助他们。

一般实意动词的否定式，通常应根据不同时态和人称在实意动词之前加don’t, doesn’t, didn’t等：

He works in a bank. 他在一家银行工作。

→He doesn’t work in a bank. 他不是在银行工作。

We often hear from her. 我们经常收到她的来信。

→We don’t often hear from her. 我们不经常收到她的来信。

I met her at the station. 我在车站见到了她。

→I didn’t meet her at the station. 我在车站没见到她。

一般疑问句及肯定否定回答的句子

么么求采纳百度百科》[里面有句子]一般疑问句有两个家族。

第一家族为含be动词或情态动词的一般疑问句，其结构为：be + 主语 + 其它部分？情态动词 + 主语 + 动词原形 + 其它部分？肯定回答用“Yes，主语+be\情态动词.”，否定回答用“No，主语+be\情态动词+not.”。

be或情态动词和not可用缩写形式，主要有isn't,aren't,wasn't,weren't,can't,mustn't,needn't等。

Eg1. 问句： Is this your English book？肯答： Yes,it is.否答： No,it isn`t.Eg2. 问句： Are these your English books？肯答： Yes,they are.否答： No,they aren't.Eg3. 问句： Can you speak English？肯答： Yes,I can.否答： No,I can't.注意例句1和例句2，在回答时必须将this\that与these\those分别变为it和they。

另一家族为含行为动词（或称为实义动词）的一般疑问句，其结构为：助动词 + 主语 + 动词原形 + 其它？肯定回答用“Yes， 主语+ do\does.”，否定回答用“No， 主语+don\does not.”。

助动词也常用缩写形式，主要有don't,doesn't,didn't等。

Eg4. 问句： Do your parents like English？肯答： Yes,they do.否答： No,they don't.[1] 一般疑问句的回答正如前面所述，回答一般疑问句时有肯定回答和否定回答两种方式，肯定回答以Yes起句，否定回答用No开头。

但对一般疑问句的回答也不是一成不变的。

肯定回答还可以用OK./Certainly.等；否定回答可用Sorry./Sorry,I can`t.等。

Eg5. 问句： Can you speak English？肯答： Certainly \ Of course.否答： Sorry, I can't.[1] 一般疑问句的语调朗读一般疑问句时用升调，而一般疑问句的简略答语则用降调。

[1] 将陈述句变为一般疑问句根据一般疑问句不同的家族，可以用不同的方法将陈述句变为相应的一般疑问句。

1、第一家族：含be动词或情态动词的句子秘诀：一调二改三问号一调：即把句中的be或情态动词调到主语前；二改：改换主语称谓，即将句中的主语I\my \mines\we\our\ours等第一人称分别改为相应的第二人称you\your\ yours等；三问号：句末的句号改为问号。

如：Eg6. I am an English teacher. → Are you an English teacher?Eg7. We can speak English fluently. → Can you speak English fluently?2、第二家族：含行为动词（或称为实义动词）的句子秘诀：一加二改三问号一加：即在句首加助动词Do或Does；二改：1、把谓语动词改为原形；2、改换主语称谓（同第一家组）；三问号：句末的句号改为问号。

Eg8. We read English every morning. → Do you read English every morning?Eg9. Tom's father listens to English on the radio every evening. →Does Tom's father listen to English on the radio every evening？特别注意：对于第二家族一定要注意动词的还原，因为时态与数的变化已经体现在助动词上了。

用“can”造五个句子,并把它们变为否定、一般疑问句。

（肯定、否...

1.I can swim . 否定：I can't swim. 一般疑问句：Can you swim？ 肯定：Yes,Ican. 否定：No,I can't.2..I can dance.否定：I can't dance.一般疑问句：can you dance ?. 肯定：Yes,Ican. 否定：No,I can't3.I can speak English.否定：I can't speak English一般疑问句：can you speak English?肯定：Yes,Ican. 否定：No,I can't4.I can cook.否定：I can't cook.一般疑问句：Can you cook?肯定：Yes,I can. 否定：No,I can't5.I can sing.否定：I can't sing.一般疑问句：Can you sing?肯定：Yes,Ican. 否定：No,I can't选我，写得很辛苦的，求你勒 一定要选我~~~@！！

以wasn't开头的句子,肯定回答和否定回答？

首先这里的每个句子都是肯定句否定句形式：注：第一句话有问题We didn`t plant trees last weekend.I wasn`t at the zoo yesterdayI didn`t visit my uncle yesterdayJohn didn`t play computer games last night.We were not busy last week一般疑问句 及其回答：Did you plant trees last weekend?Yes,we did./ No, we didn`tWere you at the zoo yesterday?Yes,I was. /No,I wasn`t.Did you visit your uncle yesterday?Yes,I did/No,I didn`t.Did John play computer games last night?Yes,he did/No,he didn`t.Were you busy last week? Yes,we were./No,we wasn`t.

把下列句子改成否定句 一般疑问句 并作肯定和否定回答

1 否定句The students dont have dinner at home一般疑问句 Do the students have dinner at home?肯定回答 Yes,they do 否定回答 No,they don't2 否定句My mother doesnt go shopping every saturday一般疑问句 Does your mother go shopping every saturday?肯定回答 Yes,she does 否定回答 No,she doesnt3 否定句 The old man doesnt take an umbrella every day一般疑问句 Does the old man take an umbrella every day?肯定回答 Yes,he does 否定回答 No, he doesnt4 否定句 jane doesnt have any bread for lunch 一般疑问句 Does jane have any bread for lunch？ 这里注意 否定句和疑问句要把some 变any肯定回答Yes,she does否定回答 No,she doesnt

把下列句子改为一般疑问句并做肯定和否定回答

1.一般疑问句为would he like to climb mountains in spring?回答Yes,he'd like./No,he wouldn't .2.一般疑问句为Does Victor like the weather in China?回答Yes,he does/No,he doesn't.3.一般疑问句为Do Zoom and Zip swim in the lake?回答Yes,they do./No,they don't.希望有所帮助，不明可追问

给我5个作否定回答的句子和做肯定回答的句子 数度

1. Are these betty's jeans? / Yes, they are. /No, they aren't. / What are these?2. Are those dark clouds?/ Yes, they are. /No, they aren't. /What are those?3. Do you want some sauages?/ Yes, I do. /No,I don't. /What do you want?4. Does the nurse like cycling?/ Yes, she does. /No,she doesn't./What does the nurse like?5. Are they sweeping the floor?/Yes, they are. /No, they aren't./ 5.What are they doing?