陈述句变否定句
小升初专项：陈述句变否定句
陈述句变否定句陈述句：是用来陈述一件事情或表示一种看法，可分为肯定句和否定句两种形式。
一、变否定句：1.当谓语动词是be动词,am, is are或者过去时was, were时，直接在这些词后面加not构成否定形式，即am not, is not=isn’t , are not=aren’t。
如果句子里有some，在否定句中要变成any。
and 变成or。
Eg. She is a beautiful girl. (改为否定句)- She isn’t a beautiful girl.There are some students in Sun school. (改为否定句)-There aren’t any students in Sun school.2.当句子中谓语动词是助动词will,情态动词can, could, should,must等时，直接在助动词和情态动词后加not 变为否定句。
注意will not = won’t, can not=can’t, must not =mustn’t 表示禁止。
如果句子里有some，在否定句中要变成any。
and 变成or。
Eg .My family will go to Beijing and Qingdao next Sunday . (改为否定句)-My family will not go to Beijing or Qingdao next Sunday.They can run very fast. (改为否定句)-They can’t run very fast.3.Eg.谓语动词是行为动词而又没有助动词或情态动词时，必须在谓语动词前加助动词，一般现在时加助动词do ，第三人称单数加does，一般过去时加did，再和not构成否定结构。
don't, doesn't, didn't后都用动词原形。
如果句子里有some，在否定句中要变成any。
陈述句变疑问句和否定句
1.We always go to school on foot every day. We always don’t go to school on foot every day. 2.They went to the hospital to see their good friend, Tom. They didn’t go to the hospital to see their good friend ,Tom. 3.My good friend has two eggs and a glass of milk in the morning before he goes to school. My good friend doesn’t have two eggs or a glass of milk in the morning before he doesn’t go to school .
1.The twins are watching TV now. The twins are not(aren’t) watching TV now. 2.They were in the front of the classroom. They were not(weren’t) in the front of the classroom. 3.The child can play the piano very well. The child can not(can’t)play the piano very well. 4.We students should help each other in study . We students should not(shouldn’t) help each other in study.
陈述句疑问句否定句的转换
陈述句疑问句否定句的转换陈述句、疑问句和否定句是语法中常见的三种句式。
它们在句子表达和交流中有不同的功能和作用。
本文将介绍如何转换陈述句为疑问句和否定句，并提供一些例子来帮助读者更好地理解。
一、陈述句转换为疑问句将陈述句转换为疑问句，通常有两种方式：改变语序和添加疑问词。
1. 改变语序：将陈述句的语序改为“助动词/情态动词+主语+动词+其他”。
Example 1:陈述句：She dances very well.疑问句：Does she dance very well?Example 2:陈述句：They have finished their work.疑问句：Have they finished their work?2. 添加疑问词：在陈述句中添加疑问词，如“what, who, where, why, how, when”等。
Example 1:陈述句：I visit my grandparents every Sunday.疑问句：When do I visit my grandparents?陈述句：She bought a new car.疑问句：What did she buy?二、陈述句转换为否定句将陈述句转换为否定句，通常有两种方式：在动词前添加否定词或改变主语。
1. 在动词前添加否定词：将陈述句的动词前添加否定词，如“don't/doesn't/didn't”。
Example 1:陈述句：He goes to school by bus.否定句：He doesn't go to school by bus.Example 2:陈述句：She likes swimming.否定句：She doesn't like swimming.2. 改变主语：将陈述句中的主语改为相应的否定形式。
Example 1:陈述句：Jim plays football on weekends.否定句：Jim doesn't play football on weekends.陈述句：Mary has finished her homework.否定句：Mary hasn't finished her homework.三、疑问句转换为陈述句或否定句将疑问句转换为陈述句或否定句，需要根据具体情况进行转换。
陈述句改成双重否定句的方法和步骤
陈述句改成双重否定句的方法和步骤：1、根据句子意思，选择恰当的双重否定词；2、替换或删去原句中“要、得(děi)、都、应该、只好、一定、必须、肯定”等词语；3、删去原句中“很、非常、十分、分外、更加”等表示程度深的词语；4、检查改后的句子是否读得通顺。
双重否定词及分类：1、不得不、不能不、不会不、不是不、不敢不；2、无不、无非、没有不、不是没有、不可能不；3、不……不……、没有……不……、非……不可。
双重否定句双重否定句是使用两个否定副词来表达肯定含义的句子。
例如"不……不"、"没有……不"、"非……不"等。
双重否定句的肯定语气比一般肯定句强烈或委婉。
例如：他不敢不去。
（强烈）我不得不告诉你事情的原委。
（强烈）没有谁不惧怕他的威严。
（强烈）你若是想在这个世界留下值得让人怀念的事迹，那就非得有毅力不可。
（强烈）他不会不同情我的。
（委婉）没有什么不可以。
（委婉）书面语中还经常使用"无不、无非、不无、未必不"等双重否定词语来表示肯定。
例如：他的话不无道理。
在场的观众无不为他的精彩表演所打动。
他无非是想多捞点退休金罢了。
我虽然年轻，但未必不是你的对手。
双重否定句也就是一种语义大于肯定句的语句我对老师们的勇敢，从心底里感到无限的敬佩．（改为双重否定句）可以改为1我不能不对老师们的勇敢，从心底里感到无限的敬佩。
2我对老师们的勇敢，不能不从心底里感到无限的敬佩。
练习1、我们得保证那东西完好无损。
2、这次活动的经过你应该很清楚。
3、每一个孩子都应该爱自己的母亲。
4、飞向遥远的地方，要和爸爸妈妈商量商量。
5、楚王只好吩咐手下打开城门，迎接晏子。
6、爹妈都不在家，我只好自己动手丰衣足食了。
7、为了回家，凡卡只好给爷爷写信，诉说学徒生活的痛苦。
8、写得不怎么样，但还是有希望的。
9、我一定要为中国人争气。
10、这本书太有价值了,你一定要看。
陈述句变否定句的规则
陈述句变否定句的规则1. 加上否定词：在陈述句中加上否定词，如"不"、"没有"、"无"、"非"等，来表示否定的意思。
例如：陈述句：他是个好学生。
否定句：他不是个好学生。
2. 改变动词形式：将陈述句中的动词改为否定形式。
例如：陈述句：他喜欢吃苹果。
否定句：他不喜欢吃苹果。
3. 加上反义词：在陈述句中加上表示相反意义的词语。
例如：陈述句：这个房间很干净。
否定句：这个房间不干净。
4. 改变句子结构：改变陈述句的句子结构，使其变为否定句。
例如：陈述句：她是一个聪明的学生。
否定句：没有一个学生聪明如她。
5. 加上条件状语从句：在陈述句中加上条件状语从句，表示不成立的条件。
例如：陈述句：如果他努力学习，他会考上大学。
否定句：如果他不努力学习，他不会考上大学。
6. 加上否定副词：在陈述句中加上否定副词，如"从未"、"决不"、"绝不"等，来表示否定的意思。
例如：陈述句：他总是按时完成任务。
否定句：他从未按时完成任务。
7. 改变句子代词：将陈述句中的代词改为否定形式。
例如：陈述句：我喜欢这本书。
否定句：我不喜欢那本书。
8. 加上否定前缀：在陈述句的形容词、名词前加上否定前缀，表示否定的意思。
例如：陈述句：这个问题很简单。
否定句：这个问题不简单。
9. 改变句子的否定形式：将陈述句改为否定形式，表示相反的意思。
例如：陈述句：他是一个优秀的演员。
否定句：他不是一个优秀的演员。
10. 加上否定连词：在陈述句中加上否定连词，如"但是不"、"然而不"等，表示相反的意思。
例如：陈述句：他虽然帅，但是没有才华。
否定句：他虽然帅，但是没有才华。
11. 加上表示否定的副词：在陈述句中加上表示否定的副词，如"不可能"、"不曾"、"绝不"等，表示否定的意思。
陈述句变双重否定句练习
1、万里长城是世界历史上的一个伟大奇迹。
2、写得不怎么样，但还是有希望的。
3、问题还没有弄清，但已经有了一点儿头绪。
4、他这样做虽然过分了点，但还是有道理的。
5、你承认电子计算机是“天之骄子”。
6、燕子飞过大海，肯定非常辛苦、艰难。
7、爹妈都不在家，只好自己动手丰衣足食了。
8、在共产党面前，什么困难都能克服。
9、这部电影使我感动得流泪。
10、黑熊躲进大树洞里。
11、下个星期天，妈妈要带我去西湖划船。
12、星期天,我们必须去看排球赛。
13、学校里只给每人发一张票,这真叫人为难。
14、红四团的战士必须抢在敌人前面赶到泸定桥。
15、这件事是事实。
16、我是好学生。
17、人都喝水。
测试：1、全班同学都参加了这次植树活动。
2、山坡下的每一块地都被大水淹没了。
3、这意想不到的错误，让所有观众都惊呆了。
4、你应该知道这件事。
5、为了学业，李平必须边打工挣钱边学习。
6、每一个孩子都爱自己的母亲。
7、说起地道战，谁都承认是个奇迹。
8、爹妈都不在家，只好自己动手丰衣足食了。
9、他这样做虽然过分了点，但还是有道理的。
10、我只有用劳动来解除饥饿的威胁。
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。
陈述句变否定句一般疑问句 特殊疑问句及练习(全面)
句型转换的方法一、 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；2、 在can，should， will等后加not。
如：cannot， should not，will not；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。
4、 some 改成any。
把下面的句子变成否定句。
1. She is watching TV now.2. We go to school on Sunday.3. His father works hard.4. Jack's mother is a nurse.5. The cat runs fast.6. They like reading books.7. My grandpa gives me a hot dog.8. Tom often walks to school.9. I have a doll.10. It is eating fish.二、 肯定句改一般疑问句的方法——三步法1、 把be动词放在句首，剩下的照抄，（some 改成any，my改成your 等）句点改成问号。
2、 把can，shall， will等放到句首，剩下的照抄，（some 改成any，my改成your等）句点改成问号。
例如：陈述句: They are in the park. He can play the guitar..一般疑问句: Are they in the park? Can he play the guitar?把下列句子变成一般疑问句1. I am listening to music.______________________________________2. Mike is a student._______________________________________3. Sarah can clean the classroom.________________________________________4. They are in the zoo.________________________________________5. There are some flowers in the vase.________________________________________6.This is my sister._________________________________________7.We are sweeping the floor.__________________________________________3、 上述都没有的，在句首请助动词Do/Does/Did帮忙，剩下的照抄，（some 改成any，my改成your等）句点改成问号。
陈述句变否定句及疑问句
陈述句变否定句及疑问句含有Be动词第一人称I只和am搭配使用陈述句：I am a teacher.否定句：I am not a teacher.疑问句：Are you a teacher？Yes，I am.No, I am not.第二人称：you和are搭配，这里不分你和你们陈述句：You are a teacher.否定句：You are not a teacher.疑问句：Are you a teacher？Yes, you are.No, you are not.第三人称复数情况：比如他们they搭配are第二人称，第一人称的复数也用are陈述句：They are teachers.否定句：They are not teachers.疑问句：Are They teachers？Yes, they are.No, they are not.第三人称用单数的情况用的is，比如she he it陈述句：She is a teacher.否定句：She is not a teacher.疑问句：Is she a teacher？Yes, she is.No, she is not.含有行为动词第一人称I 用动词原形例如read，否定句do+not陈述句：I read a book.否定句：I do not read a book.疑问句：Do you read a book？Yes, I do.No, I do not.第二人称you 也用动词原形例如read，否定句do+not 陈述句：You read a book.否定句：You do not read a book.疑问句：Do you read a book？Yes, I do.No, I do not.第三人称复数they 也用动词原形read ，否定句直接加not陈述句：They read a book.否定句：They do not read a book.疑问句：Do they read a book？Yes, they do.No, they do not.第三人称单数she 要用动词的复数形式reads。
陈述句变否定句一般疑问句特殊疑问句及练习
句型转换的方法一、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；2、在can,should, will等后加not;如：cannot, should not, will not；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;4、 some 改成any;把下面的句子变成否定句;1.She is watching TV now.2.We go to school on Sunday.3.His father works hard.4.Jack's mother is a nurse.5.The cat runs fast.6.They like reading books.7.My grandpa gives me a hot dog.8.Tom often walks to school.9.I have a doll.It is eating fish.二、肯定句改一般疑问句的方法——三步法1、把be动词放在句首,剩下的照抄,some 改成any,my改成your等句点改成问号;2、把can,shall, will等放到句首,剩下的照抄,some 改成any,my改成your 等句点改成问号;例如：陈述句: They are in the park. He can play the guitar..一般疑问句: Are they in the park Can he play the guitar把下列句子变成一般疑问句1. I am listening to music.______________________________________2. Mike is a student._______________________________________3. Sarah can clean the classroom.________________________________________4. They are in the zoo.________________________________________5. There are some flowers in the vase.________________________________________6.This is my sister._________________________________________7.We are sweeping the floor.__________________________________________3、上述都没有的,在句首请助动词Do/Does/Did帮忙,剩下的照抄,some 改成any,my改成your等句点改成问号;例如：陈述句: I like the ducks. He likes the dogs.一般疑问句：Do you like the ducks Does he like the dogs把下列句子改为一般疑问句;1. We need some masks._________________________________2. They like making the puppet._________________________________3. Su Hai and Su Yang live in a new house._________________________________________________4.I put a book on my head._________________________________________________5. They sing “In the classroom”together._________________________________________________6.We play basketball on Sundays._________________________________________________7. Tom likes listening to music____________________________________________三、肯定句改特殊疑问句的方法——四步法1、在一般疑问句的基础上,句首添加一个疑问词即可,可根据划线部分确定是什么疑问词;2、接着找be动词或can,shall, will等放在疑问词后面,若没有则请助动词do/does/did帮忙,写在疑问词后面,how many除外,必须先写物品,再写be动词等;3、划线部分去掉后剩下的内容照抄,some 改成any,my改成your等4、句点改成问号;以疑问词开头,对句中某一成分提问的句子叫特殊疑问句;常用的疑问词有：what什么, who谁, whose谁的, which哪个, when何时, where 哪里, how怎样, why为何等;1.what意为“什么”,用来对“事”或“职业”提问;What is this 这个是什么What is your father 你爸爸是做什么的2. who意为“谁”,用来对“人”提问;Who is behind the door谁在门后3. whose意为“谁的”,用来对物主代词及名词所有格进行提问;Whose bag is this这个包是谁的4. which意为“哪个”,既可以对“人”提问,也可以对“物”提问;which season do you like best 你最喜欢哪个季节5. when意为“什么时候”,对时间提问;对具体钟点提问用“what time”;When did you arrive你什么时候到的What time does the first class begin几点钟开始第一堂课6. why 意为“为什么”,对原因提问;Why are you late 你为什么迟到Why don’t we go to together 我们为什么不一起去7. where 意为“在哪里”,对地点提问;where is lily Lily在哪里8. how 意为“怎样”,对方式、程度、状态等提问;How are you today 你今天怎么样句型转换题1.The girl is singing in the classroom.改为否定句改为一般疑问句2.They are looking for bag.对画线部分提问3.I am riding my bike now.同上4.There are twelve studens over there.同上5.I can speak English.改为一般疑问句6.I am writing now.同上7.She is buying some food in the supermarket.改为否定句8.I am ill. 对画线部分提问9.Does she like growing flowers 给予否定回答10.I will make model planes with my classmates on Sunday. 对画线部分提问11.The waiter and the waitress play table tennis every day. 改为否定句12.The boy is standing on the man's shoulders.改为一般疑问句13.It's ten o'clock.对画线部分提问练一练1、A: _______ is the boy in blue B:He’s Mike.2、A: _______ pen is itB:It’s mine.3、A: _______ is the diary B:It’s under the chair.4、A: ___ is the Chirstmas Day B: It’s on the 25th of December.5、A: _______ are the earphones B:They are 25 yuan.6、A: _______ is the cup B:It’s blue.7、A: _______ is it today B:It’s Sunday.8、A: _______ was it yesterday B: It was the 13th of October.9、A: _______ this red one B:It’s beautiful.10、A: Can I have some paper and some crayonsB: _______ A: I want to make a kite.12A:_______ is your cousin B: He’s 15 years old.13、A:_______ do you have dinnerB: At 6 o’clock.1.He does well in Maths. 改为否定句2.Mike runs as fast as Ben. 改为一般疑问句3.Jim is good at English and Maths. 对画线部分提问4. The policeman caught the thief. 改为一般疑问句,作否定回答5. Turn right at the third crossing. 改为否定句6.How can I get to the shopping centre 改为同义句7.Are they American cars 改为单数8.Don’t go along this street. 改为肯定句9.I get to the shopping centre by bus. 对画线部分提问10.It always rains in summer there. 改为一般疑问句,作肯定回答11.It’s cold in winter there. 对画线部分提问12.I like autumn best. 改为否定句13.Su Yang is asking Ben some questions. 对画线部分提问14.Please turn off the light. 改为否定句15.I know his telephone number. 改为一般疑问句16.The children have school today. 改为否定句17.I’d like to join them.改为一般疑问句18. They are going to see a film tomorrow. 对画线部分提问19.I like collecting stamps and singing. 改为否定句20.He often cleans his bedroom. 改为一般疑问句21.Liu Tao is watering flowers in the garden. 对画线部分提问22.David and Mike are going to planting trees this afternoon. 对画线部分提问23.He did his homework in the classroom. 改为否定句24.Wang Bing is heavier than Gao Shan. 对画线部分提问25.Tom jumps as far as Mike. 改为否定句26.The boy can jump higher than the girl. 改为否定句27.Liu Tao needs some pencils. 改为否定句28.Mary can fly. 变为一般疑问句,并作否定回答29.He has a brother. 改为一般疑问句30.Nancy drew some pictures yesterday. 改为否定句。
陈述句变否定句的练习题
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.______________________________________________ III．实意动词1.We come from China.______________________________________________ 2.We like the mask.______________________________________________ 3.He likes the violin.______________________________________________ 4.Have some bread, Tom.______________________________________________ 5.Please open your books.______________________________________________ 6.I like Chinese、Maths、Art and PE.______________________________________________ 7.She has a shower in the morning.______________________________________________ 8.Peter did lots of work in the company last night.______________________________________________ 9.They had a lot of fun in past ten years.______________________________________________ 10.I used to play the piano.______________________________________________ answer:I.Be动词1.He is a boy.He is not a boy.2.I am your friend.I am not your friend.3.My sister is a beatiful girl.My sister is not a beatiful girl.4.My mother is a worker.My mother is not a worker.5.They are in the classroom.They are not in the classroo.6. There are some books on the bookshelf.There are not any books on the bookshelf.7.I was at home yesterday.I was not at home yesterday.8.They were in Beijing ten years ago.They were not in Beijing ten years ago.9. I am looking for a job recently.I am not looking for a job recently.10.The students are playing basketball in the playground.The students are not playing basketball in the playground.II.情态动词11.Lucy will be back in a week.Lucy will not be back in a week.12.She can sing a song and draw a picture.She can not sing a song and draw a picture.13.You can use the dictionary.You can not use the dictionary.14.Peter need go home now.Peter need not go home now15.You should line up when you wait for a bus.You should not line up when you wait for a bus.16.We need learn something to cook.We need not learn anything to cook.17.I can write a book.I can not write a book.18.You should say “Sorry” to somebody who you hurt him.You should not say “Sorry” to somebody who you hurt him.19.He must stay at home to finish his homework.He must not stay at home to finish his homework.20.I can go to Shanghai Zoo.I can not go to Shanghai Zoo.III.实意动词21. We come from China.We don’t come from China.22.We like the mask.We don’t like the mask.23.He likes the violin.He doesn’t like the violin.24.Have some bread, Tom.Do not have any bread, Tom.25.Please open your books.Please do not open your books26.I like Chinese、Maths、Art and PE.I don’t like Chinese、Maths、Art and PE27.She has a shower in the morning.She doesn’t have a shower in the morning.28.Peter did lots of work in the company last night.She didn’t do a lot of work in the company last night.29.They had a lot of fun in past ten years.They didn’t have a lot of fun in past ten years.30.I used to play the piano.I didn’t use to play the piano.。
陈述句变否定句
二. 句子中有can will时，在其后加not。 例：He can swim. He can not swim. I will go to the park. I will not go to the park. 练习： （1）Tiger can run fast. （2）They will make a snowman. （3）Amy will take a dancing class. （4）She can go ice-skating. （5）Aunt will cook dinner.
三. 句子中无am is are can will。 1. 动词为原形时，在动词前加don’t。 例：I go to school by bike. I don’t go to school by bike. 练习： （1）They eat lunch at school. （2）I have to do my homework. （3）Boys play football at noon. （4）I want to send it today. （5）Three pandas eat bamboos.
2. 动词为单三形式时，在动词前加 doesn’t , 动词单三形式变原形。 例：He eats breakfastห้องสมุดไป่ตู้at home. He doesn’t eat breakfast at home. Mike goes to bookstore by bus. Mike doesn’t go to school by bus. 练习：（1）She wants to eat noodles. （2）Mr Zhang has to wash clothes. （3）Jack makes mooncakes for me. （4）John wears a life jacket. （5）The elephant drinks water .
陈述句改为一般疑问句或否定句
一、陈述句改为一般疑问句：1.当句子中含有be动词(am is are was were)或情态动词(can,could,may,might,will,would,must,need,shall,should等）或在完成时态中(has/have/had+过去分词)时，把这些助动词提到句首。
如：①He is a docter.-----Is he a docter? ②They were in the house yesterday.----Were they in……?③Tom can swim.----Can Tom swim? ④He has been to the park.----Has he been to the park? 另外，为符合实际习惯I am/We are..…------Are you…? I was/We were…-----Were you….?I /We can…-----Can you…..? I /We have +过去分词…..------Have you…….?2.当句中含有实义动词时，也就是句子不含上面所提到那些助动词时，必须在句首加DO/Does/Did,具体情况分以下三方面：㈠当句子中含有动词原型时，在句子前加Do, 其中，I+动词。
------Do you…?如：①I like music.---Do you like music? ②They work here.----Do they work here?㈡当句子中含有的动词加S或ES时，即句子是一般现在时，且主语为第三人称单数时，在句子前加Does.如：①He likes music.------Does he like music?②Tom comes from China.-----Does Tom come from China?（注意在此情况下，应把疑问句中的动词变原型。
）㈢当句子中的动词为过去式，在句子前加Did再把动词变原型。
小升初专项：陈述句变否定句
陈述句变否定句陈述句：是用来陈述一件事情或表示一种看法，可分为肯定句和否定句两种形式。
一、变否定句：1.当谓语动词是be动词,am, is are或者过去时was, were时，直接在这些词后面加not构成否定形式，即am not, is not=isn’t , are not=aren’t。
如果句子里有some，在否定句中要变成any。
and 变成or。
Eg. She is a beautiful girl. (改为否定句)- She isn’t a beautiful girl.There are some students in Sun school. (改为否定句)-There aren’t any students in Sun school.2.当句子中谓语动词是助动词will,情态动词can, could, should,must等时，直接在助动词和情态动词后加not 变为否定句。
注意will not = won’t, can not=can’t, must not =mustn’t 表示禁止。
如果句子里有some，在否定句中要变成any。
and 变成or。
Eg .My family will go to Beijing and Qingdao next Sunday . (改为否定句)-My family will not go to Beijing or Qingdao next Sunday.They can run very fast. (改为否定句)-They can’t run very fast.3.Eg.谓语动词是行为动词而又没有助动词或情态动词时，必须在谓语动词前加助动词，一般现在时加助动词do ，第三人称单数加does，一般过去时加did，再和not构成否定结构。
don't, doesn't, didn't后都用动词原形。
如果句子里有some，在否定句中要变成any。
陈述句变否定句和一般疑问句口诀和练习
精品文档否定句变换口诀1.变否定，找 be、 can ， be、 can 后边加 not，2.无 be 无 can 找动词，动词前边加 don't/doesn’t ，后面动词用原形。
【典型例题】1.David watches TVevery evening. （改为否定句）2.She is buying somefood in the supermarket （改为否定句）3.Hecan play the piano. （改为否定句）一般疑问句变换口诀1.一般问，找 be、 can ， be、 can 提前用问号；2.无 be 无 can 借用 do（三单 does）, 放到句首要大写。
【典型例题】1.This is mytoy car. （改为一般疑问句）2.Hecan play basketball. （改为一般疑问句）3.Jack speaks English very well. （改为一般疑问句）对划线部分部提问口决划线问，先把原句变疑问，找准特殊疑问词，放在句首去划线，动词词组 do 代替，时态人称要注意。
【典型例题】1. The children are flying kites in the park.（对画线部分提问）2.There are ten books in the bag. （对画线部分提问）3.She is a nurse. （对画线部分提问）精品文档一、按要求完成句子（要求：A：改为一般疑问句B：改为否定句）1.I ama student. →A:B:2.They are English cars.→A:B:3.This is a pencil-box.→ A:B:4.Its nameis Polly.→ A:B:5.Jim is at school.→ A:B:6.These are myEnglish books. → A:B:7.I know his name. → A:B:8.Please look after your cat. → A:B:9.There is some moneyin the purse. → A:B:10.There are many apples on the tree. → A:B:11. You can go to have a look. → A:B:12. Comehere, please.→ A:B:二、回答句子（ A：肯定回答B：否定回答）1.Are you a teacher?→ A:B:2.Is this your ruler?→ A:B:3.Are those banana trees?→A:B:4.Is it a nice room? → A:B:5.Is there a picture on the wall?→A:B:6.Are there any trees on the hill?→A:B:7.Can you see a bird in the sky? → A:B:8.Doyou know Mr Wang?→ A:B:陈述句变一般疑问句1.His father is an English teacher._________________________________________ ?2.These cats are crying. （喊叫）_________________________________________ ?3.They can swim._________________________________________ ?4.I like to read （阅读） English._________________________________________ ?5.I go to school on foot. （走路）_________________________________________ ?6.Helikes English._________________________________________ ?7. His father goes to work by bus. （乘公共汽车）_________________________________________ ?8.Heis crying （哭） under the tree._________________________________________ ?9. The boy does some housework （家庭作业）at home._________________________________________ ?10. The children had a good time in the park （公园） ._________________________________________ ?。
陈述句变否定句
陈述句变否定句陈述句变否定句一、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。
陈述句改否定句的方法和技巧
陈述句改否定句的方法和技巧
1. 嘿，咱先得注意句子里的动词呀！比如“他喜欢画画”，把“喜欢”改成“不喜欢”，那就变成否定句啦，“他不喜欢画画”。
你想想，这是不是很简单呀！
2. 还有哦，看看有没有表示肯定的副词呢！像“我经常去公园”，把“经常”改成“不经常”，“我不经常去公园”，这不就成了嘛，这多容易操作呀！
3. 哎呀呀，要是句子里有“是”这样的判断词，那更好改啦！“这是我的书”，变成“这不是我的书”，就这么轻松搞定，是不是超有意思呀！
4. 可别忘了那些表示程度的词哟！比如说“她非常漂亮”，把“非常”改成“不很”，“她不很漂亮”，这方法咋样，很妙吧！
5. 如果有数量词也得注意呀！像“三个苹果”，改成“不是三个苹果”，简单粗暴但有用呀，嘿嘿！
6. 咱再说说形容词呀，“天气晴朗”，把“晴朗”改成“不晴朗”，“天气不晴朗”，就这么简单呀，学会了吧！
7. 有没有那种直接表示肯定的词呀，比如“一定”，“他一定会来”改成“他不一定会来”，多浅显易懂呀！
8. 碰到有多个肯定因素的句子也别怕呀！“他又聪明又勇敢”，那可以改成“他又不聪明又不勇敢”，哈哈，你学会了没呀！
总之呀，把陈述句改成否定句其实并不难，只要咱多留意句子里的这些要点，多练习练习，肯定能轻松掌握的啦！。
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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.______________________________________________III．实意动词1.We come from China.______________________________________________2.We like the mask.______________________________________________ 3.He likes the violin.______________________________________________4.Have some bread, Tom.______________________________________________5.Please open your books.______________________________________________ 6.I like Chinese、Maths、Art and PE.______________________________________________ 7.She has a shower in the morning.______________________________________________ 8.Peter did lots of work in the company last night. ______________________________________________ 9.They had a lot of fun in past ten years.______________________________________________ 10.I used to play the piano.______________________________________________answer:I.Be动词1. He is a boy.He is not a boy.2. I am your friend.I am not your friend.3.My sister is a beatiful girl.My sister is not a beatiful girl.4.My mother is a worker.My mother is not a worker.5.They are in the classroom.They are not in the classroo.6．There are some books on the bookshelf.There are not any books on thebookshelf.7. I was at home yesterday.I was not at home yesterday.8. They were in Beijing ten years ago.They were not in Beijing ten years ago.9. I am looking for a job recently.I am not looking for a job recently.10. The students are playing basketball in the playground.The students are not playing basketball in the playground.II.情态动词11.Lucy will be back in a week.Lucy will not be back in a week.12.She can sing a song and draw apicture.She can not sing a song and draw apicture.13.You can use the dictionary.You can not use the dictionary.14.Peter need go home now.Peter need not go home now15.You should line up when you wait fora bus.You should not line up when you waitfor a bus.16.We need learn something to cook.We need not learn anything to cook.17.I can write a book.I can not write a book.18.You should say “Sorry” to somebodywho you hurt him.You should not say “Sorry” tosomebody who you hurt him.19.He must stay at home to finish hishomework.He must not stay at home to finishhis homework.20. I can go to Shanghai Zoo.I can not go to Shanghai Zoo.III.实意动词21. We come from China.We don’t come from China.22.W e like the mask.We don’t like the mask.23.H e likes the violin.He doesn’t like the violin.24.H ave some bread, Tom.Do not have any bread, Tom.25.P lease open your books.Please do not open your books26.I like Chinese、Maths、Art and PE.I don’t like Chinese、Maths、Art andPE27.S he has a shower in the morning.She doesn’t have a shower in themorning.28.P eter did lots of work in thecompany last night.She didn’t do a lot of work in thecompany last night.29.T hey had a lot of fun in past tenyears.They didn’t have a lot of fun in pastten years.30.I used to play the piano.I didn’t use to play the piano.。