变否定句

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陈述句变为否定句

陈述句变为否定句陈述句变为否定句1.如果陈述句中有be动词（am , are, is, was, were）,就在be动词后⾯直接加not。

I am a student. → I am not a student.You are sad. → You are not sad.She is a good girl. → She is not a good girl.He is a good boy. → He is not a good boy.Yesterday was Monday. → Yesterday was not Monday.The students were busy yesterday.→ The students were not busy yesterday.2.如果陈述句中有情态动词（can must should may will等），就在情态动词后⾯直接加not。

I can swim. → I can not swim.You will go to the park. →You will not go to the park.3.如果陈述句中没有be动词也没有情态动词（就是实意动词），就需要借助助动词（do, does, did）来帮助否定。

①当句中的动词是原形时，加don’tI like English. → I do not like English.You have dinner. → You do not have dinner.②当句中的动词是第三⼈称单数时，加doesn’t ，再加动词原形She likes singing. → She doesn’t like singing.She does her homework. → She does not do her homework. (特例)③当句中的动词是过去式时，⽤didn’t，加动词原形We had a great time during our holidays.→ We did not have a great time during our holidays.I went to school yesterday.→ I did not go to school yesterday.4、陈述句中的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.欢迎您的下载，资料仅供参考！致⼒为企业和个⼈提供合同协议，策划案计划书，学习资料等等打造全⽹⼀站式需求。

变否定句规则

变否定句规则般现在时变否定句的规则(a) 含有am is are 的句子,变否定句时, 只需在am is are 后加not. 例 1 This is a book.否定句This is not a book .例 2 I am a teacher . 否定句I am not a teacher .例 3 These are pens . 否定句These are not pens .(b) 含有实义动词的句子，变否定句分两步。

(1) 如果主语是第三人称单数时，要在实义动词前加doesn't, 后面的动词用原形。

例 1 He eats an apple. 否定句He doesn't eat an apple.例 2 Jim does his homework. 否定句Jim doesn't do his homework.例 3 Marry goes to school. 否定句Marry doesn't go to school.(2) 如果主语不是第三人称单数时，只需在实义动词前加don't.例 1 I teach English.否定句I don't teach English.例 2 They go to school.否定句They don't go to school.例 3 We sing a song. 否定句We don't sing a song.(c) 含有情态动词的句子,变否定句时,只需在情态动词后加not.例 1 I can dance.否定句I can not dance. 或I can't dance.例 2 They can speak English.否定句They can not speak English. 或They can't speak English.例 3 He must go home.否定句He must not go home. 或He mustn't go home.例 4 He must be on the playground. He can not be on the playground.析：当must be 用来表示推测，有“一定”的含义时，否定式要用can not.例5You must say something at the mecting.You needn ' t say anything at the mecting.析：当“must+行为动词”用来表示“必须”的含义时，其否定式可用needn't或mustn't 表示“不需要”，“不必”，语气委婉，must not 表示“禁止”，“千万别”语气生硬。

肯定句改否定句的方法

肯定句改否定句的方法
肯定句改为否定句有以下几种方法：
1. 在主语前加上否定词“不”。

例如：他去了超市。

→他不去了超市。

2. 在动词前加上否定词“不”。

例如：我喜欢吃巧克力。

→我不喜欢吃巧克力。

3. 在句子中其他位置加上否定词“不”。

例如：这个菜很好吃。

→这个菜不很好吃。

需要注意的是，有些动词需要使用“不”和“没”来表示否定，例如“吃”和“喝”等动词就需要用“不”表示否定，“没”表示否定的次数或状态。

例如：我今天没吃早饭。

（表示我今天没有吃早饭）；我不喜欢喝咖啡。

（表示我不喜欢喝咖啡）
还有一种方法是使用含有否定意义的词语组成否定句。

例如：没有、不是、不会等。

例如：我没有去过北京。

（表示我从未去过北京）；他不是我的同学。

（表示他不是我的同学）；我不会说英语。

（表示我不会说英语）
以上是肯定句改为否定句的常用方法。

需要注意的是，句子的语境和语气也可能影响否定句的表达方式。

英语肯定句变否定句的方法

英语肯定句变否定句的方法摘要：一、英语肯定句变否定句的常用方法二、具体转换步骤和实践示例正文：英语肯定句和否定句在表达上有着明显的区别。

在英语中，否定句通常用来表示对某个陈述或观点的否认。

要将从肯定句转换为否定句，有以下几种常用方法。

首先，在句子前加“no”，这是最直接的方法。

例如，原句为“She is a teacher.”，转换为否定句就是“She is not a teacher.”。

其次，使用助动词“isn"t”、“aren"t”、“wasn"t”、“weren"t”等来替换原句中的动词。

例如，“They are playing soccer.”变为“They aren"t playing soccer.”接下来，我们可以利用“don"t”、“doesn"t”、“didn"t”等助动词替换疑问句中的动词。

例如，“He likes pizza.”变为“He doesn"t like pizza.”此外，还可以用“not...until...”的结构来表示否定。

例如，“I will go until it rains.”可以转换为“I will not go until it rains.”最后，需要注意的是，在转换过程中，要确保句子的语法结构和意思保持不变。

例如，“He has finished his homework.”转换为否定句就是“He hasn"t finished his homework.”总之，掌握以上方法，就可以轻松地将英语肯定句转换为否定句。

在实际应用中，根据不同的语境和句子结构，选择合适的方法进行转换，使句子更加丰富和生动。

变否定句规则

变否定句规则变否定句规则⼀、⼀般现在时变否定句的规则.(a) 含有 am is are 的句⼦,变否定句时, 只需在am is are 后加not.例1 This is a book.否定句This is not a book .例2 I am a teacher .否定句I am not a teacher .例3 These are pens .否定句These are not pens .(b) 含有实义动词的句⼦，变否定句分两步。

（1）如果主语是第三⼈称单数时，要在实义动词前加doesn't,后⾯的动词⽤原形。

例1 He eats an apple.否定句 He doesn't eat an apple.例2 Jim does his homework.否定句 Jim doesn't do his homework.例3 Marry goes to school.否定句Marry doesn't go to school.(2) 如果主语不是第三⼈称单数时，只需在实义动词前加don't.例1 I teach English.否定句I don't teach English.例2 They go to school.否定句 They don't go to school.例3 We sing a song. 否定句 We don't sing a song.(c) 含有情态动词的句⼦,变否定句时,只需在情态动词后加not.例1 I can dance.否定句 I can not dance. 或 I can't dance.例2 They can speak English.否定句 They can not speak English. 或 They can't speak English.例3 He must go home.否定句 He must not go home. 或 He mustn't go home.例 4 He must be on the playground.He can not be on the playground.析：当must be⽤来表⽰推测，有“⼀定”的含义时，否定式要⽤can not.例5You must say something at the mecting.You needn’t say anything at the mecting.析：当“must+⾏为动词”⽤来表⽰“必须”的含义时，其否定式可⽤needn’t 或mustn't表⽰“不需要”，“不必”，语⽓委婉，must not表⽰“禁⽌”，“千万别”语⽓⽣硬。

肯定句怎样变为否定句

They like purple. Su Hai and Su Yang live in a new house. She reads a book every day.
She doesn’t read a book every Su Hai and Su Yang don’t live Theபைடு நூலகம் don’t like purple. day. in a new house.
肯定句变为否定句 1. 在 be动词、助动词、情态动词之后加not. 2. 如果句中没有be动词、助动词、情态动词。在主语后加 don’t 、 doesn’t、didn’t。（同时要把谓语动词变为原形)
3. Some变为any
Cindy has a soccer ball. John and I have some volleyballs. My brother has an interesting book. Cindy John and doesn’t I don’t have have a soccer any My brother doesn’t have an ball volleyballs. . interesting book.
1. 2. 3. 4.
I am listening to music. Mike goes to the movies. They are in the zoo. There are some flowers in my room. 5.She can play the piano. Mike There are doesn’t not any go flowers to the inmusic. my movies. room. She They I am can not are not listening not play in the the to zoo. piano.

小学英语肯定句变否定句方法及练习

句型转换的方法（一）一、肯定句改否定句的方法——一步法1、在be动词后加not。

如：is not ，are not ，am not，was not，were not；例如：He is in the classroom. (改为否定句）He is not ( isn’t ) in the classroom.2、在can，should，will等后加not。

如：can not，should not，will not；例如：Mike can sing English songs. ( 改为否定句）Mike can not ( can’t ) sing English songs.3、上述都没有的，在动词前加助动词否定形式don’t/doesn’t/didn’t。

例如：I like pizza. ( 改为否定句）I don’t like pizza.4、句中有some 的要改成any。

例如：There are some books on the desk. ( 改为否定句）There are not ( aren’t ) any books on the desk.二．实战演习: 把下列各句改为否定句1.John is walking in the park.__________________________________2.Tom and Marry are friends.___________________________________3.I’m a student.___________________________________4.She will go to Beijing tomorrow,___________________________________5.We get there by bike.___________________________________6.He likes apples.___________________________________7.There are some flowers in the picture.__________________________________8.I often play football with my friend.__________________________________9.We are from China.__________________________________10.They can go to school by ferry._________________________________1。

英语句型转换-肯定句变否定句

1.有be动词或者情态动词的肯定句变否定句转变方法：在be动词或情态动词后面直接加not例1. I am a student. → I am not a student.例2. You are sad. → You are not sad.例3. I can swim. → I can not swim.例4. You will go to the park.→ You will not go to the park.2.没有be动词也没有情态动词，有实意动词(表示动作的动词)的肯定句变否定句转变方法：借助助动词（do， does， did）来帮助否定①当句中的动词是原形时，加don't。

例1. I like English.→ I do not like English.例2. You have dinner.→ You do not have dinner.②当句中的动词是第三人称单数时，加doesn't ，再加动词原形。

例1. She likes singing.→She doesn't like singing.例2. She does her homework.→ She does not do her homework.③当句中的动词是过去式时，用didn't，加动词原形例： We had a great time during our holidays.→We did not have a great time during our holidays.3. 动词have/has的特殊说明：①当have表示“某人有什么的时候”，其否定形式为have not/has not例： She has two books.→ She has not two books.②当have作为实意动词时，其否定形式为do not have/does not have例： You have dinner.→You do not have dinner.③当have在完成时中作为助动词时，其否定形式为have not/has not例： I have seen this film.→ I have not seen this film.4. 一些特殊说明：①肯定陈述句中的some/too，在否定陈述句中应改为any/either。

英语变否定句的方法

英语变否定句的方法英语中，要将一般陈述句变成否定句，通常需要在句子中加入否定词或使用辅助动词do/does/did，并将动词原形改为其否定形式。

下面我将详细解释英语中变否定句的方法，并给出一些例子。

1. 使用否定词：在英语中，有很多表示否定的词，比如：not、never、no、none、neither、nobody、nowhere等。

将这些词插入到句子中可以将句子变成否定句。

例如：- He is happy.（他很开心。

）- He is not happy.（他不开心。

）- They have finished their work.（他们完成了工作。

）- They have not finished their work.（他们还没完成工作。

）2. 使用辅助动词do/does/did：在一般陈述句中，辅助动词do/does/did用于疑问句和否定句中，以表示动作的否定。

例如：- She goes to school.（她去学校。

）- She does not go to school.（她不去学校。

）- He likes ice cream.（他喜欢冰淇淋。

）- He does not like ice cream.（他不喜欢冰淇淋。

）- They played soccer.（他们踢足球。

）- They did not play soccer.（他们没踢足球。

）需要注意的是，do表示现在和将来的否定，does表示第三人称单数的否定，did表示过去的否定。

3. 动词变为否定形式：在英语中，有些动词的否定形式是在动词原形后面加not构成的。

通常是将动词原形的词尾改为not。

例如：- I understand.（我理解。

）- I do not understand.或者I don't understand.（我不理解。

）- She knows the answer.（她知道答案。

）- She does not know the answer.或者She doesn't know the answer.（她不知道答案。

如何肯定句变否定句

如何肯定句变否定句一,肯定句变否定句同样也是根据动词的类型分为三类1）含有Be动词（am, is, are）,直接在be动词后面加not1，I am listening to the music.(变否定句)--- I am not listening to the music.2, She is in Class98. (变否定句)--- She is not in Class98.3, They are good friends. (变否定句)--- They are not good friends.2）含有情态动词，can, could, will, would, may,直接在情态动词后面加not1，She can dance very well. (变否定句)--- She can not/can’t dance very well.2，I could write when I was five. (变否定句)--- I could not/couldn’t write when I was five.3，We will fly to Shanghai tomorrow. (变否定句)--- We will not/won’t fly to Shanghai tomorrow.3）句中的谓语是实义动词，则借助助动词don’t/doesn’t如果是动词的第三人称单数，则变成 doesn’t + 动词原形1, She has small eyes.--- She doesn’t have small eyes.2, He earns some money this year.--- He doesn’t earn any money this year.如果句中是动词原形，则变成 don’t + 动词原形1, We study very hard.--- We don’t study very hard.2, My parents work on a farm.--- My parents don’t work on a farm.注意：一般情况下肯定句中some在变否定句和一般疑问句中时，要用any。

简单肯定句变否定句

简单肯定句变否定句
简单肯定句指的是陈述一个事实或情况的句子，而简单否定句则是指否定这个事实或情况的句子。

下面介绍一些常见的简单肯定句变否定句的方法：
1. 在动词前加上否定词not。

例如：He is happy.（他很高兴。

）→ He is not happy.（他不高兴。

）
2. 使用否定形式的动词。

例如：She doesn't like coffee.（她不喜欢咖啡。

）
3. 使用否定的副词或形容词来修饰动词或名词，例如：The weather is not good.（天气不好。

）→ He is not very tall.（他不是很高。

）
需要注意的是，一些特殊的动词和形容词在否定时会有不同的形式，例如：
1. be动词的否定形式是not be。

例如：I am not hungry.（我不饿。

）
2. have动词的否定形式是do not have或have not。

例如：She does not have a car.（她没有车。

）
3. can动词的否定形式是cannot或can't。

例如：I cannot swim.（我不会游泳。

）
4. some和any的否定形式是no和none。

例如：There is no milk in the fridge.（冰箱里没有牛奶。

）
总之，掌握简单肯定句变否定句的方法是英语学习中的基础，需
要多加练习和记忆。

肯定句变否定句的方法

肯定句变否定句的方法一、中文的肯定变为否定：①.改变原意，加一个（或奇数个否定的词），对句子否定：例如：小明喜欢打篮球→小明不喜欢打篮球；②.不改变意思，找出与句子中含义相反的一个词，对这个含义相反的词进行否定：例如：这项任务是很难完成的→这项任务是不易完成的；③.不改变意思，加两个否定词（或偶数个否定词），构成双重否定句：例如：他这周需要去出差→他这周不得不出差。

二、英语的肯定句变为否定句：Ⅰ、如果句子中存在be动词（am/is/are/was/were），变为否定句只需要在be动词后+not：eg：He was playing the piano at that time→He wasn't playing the piano atthat time.他那时（不）在弹钢琴。

Ⅱ、如果句子中存在情态动词will/would，may/might，shall/should，can/could，need，ought以及had better，在这些后+not：eg：You had better get up early→You had better not get up early.你最好（不要）早点起床。

注意：ought to应该…在肯定句中“to”不得省略，在疑问句— 1 —或否定句中省略。

Ⅲ、如果句子中仅有实义动词，则需要添加助动词，在助动词后+not：非单三的一般现在时：在动词前+don't 单三的一般现在时：在动词前+doesn't一般过去时：在动词前+didn't 完成时：在have/has/had后+not 被动：在第一个助动词后+notSth be not+done/Sth have（has）not been doneⅣ、固定搭配：tell sb（not）to do sth，let sb（not）do sth，…— 2 —。

英语怎么改否定句的方法

英语怎么改否定句的方法
英语中改否定句的方法有以下几种：
1. 在be动词后加not：这种方法适合于is、am、are、was、were等句子。

例如：This is a green house. 改为否定句为：This is not a green house.
2. 在谓语动词后加not：这种方法适合于一般动词（如like、dislike、want、hope、expect等）、情态动词（如can、must、may等）和助动词（如have、had、shall等）。

例如：I like ice cream. 改为否定句为：I don't like ice cream.
3. 在助动词后加not：这种方法适合于行为动词（如run、swim、fly等）和动词短语（如enjoy doing sth、forget to do sth等）。

例如：I forget to close the window. 改为否定句为：I forget not to close the window.
4. 使用No或Not来表示否定：这种方法适合于一些形容词（如possible、certain等）和名词（如answer、solution等）。

例如：This is a possible answer. 改为否定句为：This is not a possible answer.
英语中改否定句的方法有很多，可以根据不同的句子和语境来选择合适的方法。

变否定句方法

变否定句方法-CAL-FENGHAI.-(YICAI)-Company One1变否定句方法1．Be ( 一般现在时is / are / am一般过去时was/ were ) , 在be 后面加not .缩写： isn’t aren’t wasn’t weren’t1). She is at home now. → She is not at home now . = isn’t2) They are playing basketball .→ They are not playing basketball . = aren’t3) I am a teacher .→ I am not a teacher .4) He was asleep . → He was not asleep . =wasn’t5)We were happy at the party → We were not happy at the party . weren’t 2. 在情态动词can , could , must ,should ,may ,will , would,shall等后面加not 。

缩写：can’t , could n’t , must n’t ,should n’t, may not ,won’t , would n’t , shalln’t 1）He can swim in the river . → He can not swim in the river .2）We should clean the room . → We should not clean the room .3）He?can read and write．→ He?can’t read or write．3.谓语动词是行为动词时，在该动词前加上don’t／doesn’t／didn’t，动词用动词原形。

如：1）He?gets?up?early．→ He?doesn’t? get upearly．2）They go to school on foot → They don’t go to school on foot .3）She saw Liu Xiang yesterday . →She didn’t see Liu Xiang yesterday .He /she / it / Lucy / Li Lei 当主语是第三人称单数时，用doesn’tThey /we / you/ my parents / I 当主语是复数和第一人称I时，用don’t当He /she/ it/ Lucy/ LiLei/ They/ we/ you/ my parents/ I 过去时都用didn’t4. 用含否定意义的词或词组取代肯定句中的某些词或词组。

肯定句变否定句九则

肯定句变否定句九则2019-04-01⼀、句中有be动词（指is , am , are , was , were）、情态动词（指can , may , must…）、助动词（指will , shall , have , has , had）的，在其后⾯直接加not。

如：1.He is a student.He is not a student2.Her mother can speak Japanese.Her mother can not speak Japanese3.They will go to Beijing next Sunday.They will not go to Beijing next Sunday4.You have already watched this TV play.You have not watch this TV play yet.⼆、句中的谓语动词是原形、第三⼈称单数、过去式的，则应在谓语动词的前⾯分别加上do not(don't) , does not(doesn't) , did not(didn't)，切记：把谓语动词变为原形。

如：5.I get up at 6:00 in the morning every day.I don't get up at 6:00 in the morning every day.6.She likes swimming.She doesn't like swimming.7.He asked me a question yesterday.He didn't ask me a question yesterday.三、句⼦为祈使句的，在句⾸直接加Don't。

如；8.Look at the blackboard.Don't look at the blackboard.四、句中有had better的，在其后⾯直接加not，如：9.You had better go to school now.You had better not go to school now.五、句中有不定代词all , both , everybody , everything的，如变为完全否定句，both要变为neither、all要变为none、everybody要变为nobody、everything要变为nothing。