肯定句变否定句,一般疑问句

英语肯定句改为否定句、陈述句改为一般疑问句的方法和诀窍㈠肯定句变为否定句的方法——⑴加；⑵变⑴“加”——是指加not。

加not的规则是：原句中有“情助be”时则直接在“情助be”后加not（not可与“情助be”缩写）；原句中没有“情助be”时则需要另加助动词do/does/did, 然后在助动词do/does/did后加not（not可与助动词do/does/did缩写）。

助动词do和does用于一般现在时，did用于一般过去时。

⑵“变”——是指变化某些需要变化的词（因为某些词只能用于肯定句或只能用用于否定句）。

如：some→any（someone→anyone，something→anything，somewhere→anywhere）；and→or；too/also→either[´aiðə; ´i: ðə]；a lot of→many/much等。

另外，使用助动词does/did帮助否定时，原来的谓语动词要恢复原形。

例：1）He can swim. →He can’t swim.2）He will（将，要）swim. →He won’t(will not) swim.3）He is a good swimmer. →He isn’t a good swimmer.4）I have some English books. →I don’t have any English books.5）She can sing and dance. →She can’t sing or dance.6）Li Lei’s father has a lot of money. →Li Lei’s father doesn’t have much money.7）He went to Shanghai last week. →He didn’t go to Shanghai last week.说明：大多数英语肯定句改为否定句都符合上述规则，但也有一些特殊的情况不符合上述规则，在以后的学习中会学到，要注意积累。

小学英语句型转换之肯定句改否定句、一般疑问句一、肯定句改否定句的方法1.直接在be动词（am, is, are, was, were）后加not。

如：is not ，are not ，am not。

如果有some 就改成any，其余照抄。

2.直接在can，should，will等后加not。

如：cannot，should not，will not；如果有some 就改成any，其余照抄。

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。

如：——I am a girl.——I am not a girl.——You are a student.——You are not a student./You aren’t a student.——This is Tom’s bag.——This is not Tom’s bag./This isn’t T om’s bag.二、肯定句改一般疑问句的方法1.把be动词（ am, is, are, was, were））放在句首，如果句子里有some 就改成any，I改成you，my改成your，剩下的照抄，句号改成问号。

2.把can，shall，will，would，should ,could，may ,must等放到句首，如果句子里有some 就改成any，I就改成you，my就改成your，剩下的照抄，句号改成问号。

3.上述都没有的，就在句首加助动词Do，Does，Did帮忙，如果句子里有some 就改成any，I就改成you，my就改成your，剩下的照抄，句号改成问号。

4.注意：句首的第一个字母要大写，句尾标点应为“？”。

变一般疑问句时，肯定句是I am …，就把I am …变成Are you …？变一般疑问句时，肯定句I was …，就把I was …变成Were you …？如：——I am in Class 6.——Are you in Class 6？——You are from America.——Are you from America？——It is an orange.——Is it an orange？5.就一般疑问句回答一般疑问句有两种回答，即：肯定回答和否定回答。

肯定句变否定句和一般疑问句类型一、实义动词He often goes to bed at ten._________________________________________ _________________________________________ We do eye exercises every day._________________________________________ _________________________________________ She came to Japan in 1990._________________________________________ _________________________________________二、系动词I am your friend._________________________________________ _________________________________________ Her mother is a teacher._________________________________________ _________________________________________ There are two books on the desk._________________________________________ _________________________________________ Yesterday was July 1, 1995._________________________________________ _________________________________________ They were in Beijing in 1990._________________________________________ _________________________________________ 三、进行时The girl is standing at the station._________________________________________ _________________________________________ The students are playing basketball on the playground._________________________________________ _________________________________________ I am looking for a job recently._________________________________________ _________________________________________ He was writing letters at this time last night._________________________________________ _________________________________________ We were having a meeting this time yesterday._________________________________________ _________________________________________ 四、被动语态The man was run over by a car._________________________________________ _________________________________________ The plan has been made._________________________________________ _________________________________________ Kate may be elected our monitor._________________________________________ _________________________________________ 五、助动词He has been to England twice._________________________________________ _________________________________________ We have stayed here for six years._________________________________________ _________________________________________ Tom had finished the task before nine o’clock._________________________________________ _________________________________________ 六、情态动词Lucy will be back in four days._________________________________________ _________________________________________ You can use this dictionary._________________________________________ _________________________________________ You need go tomorrow._________________________________________ _________________________________________ We ought to answer this question now?_________________________________________ _________________________________________ Little Jane dared go alone._________________________________________ _________________________________________将下列陈述句变为一般疑问句。

句型转换肯定句变否定句及一般疑问句一、肯定句变否定句1、含有be动词的否定句规则：在be动词后+not.（is not可缩写成isn’t ；are not可缩成aren’t，但am 与not不可缩写）eg:肯定句：I am a student.否定句：I am not a student.肯定句：She is my sister.否定句：She isn’t my sister.肯定句：They are my parents.否定句：They aren’t my parents.2、含情态动词的否定句规则：在情态动词后+ not（can not 可缩写成can’t ，must not 可缩写成mustn’t ）eg:肯定句：I can spell “English”.否定句：I can’’t spell “English”.English”.肯定句：I must find it.否定句：I mustn’t find it.3、含有实义动词的句子的否定句构成（1）第三人称单数做主语。

（he、she、it或表示单个人或物的第三人称名词）规则：要在行为动词前加上助动词doesn’t，然后将动词恢复原形。

eg ：肯定句：He has a soccer ball.否定句：He doesn’t have a soccer ball.（2）其它人称做主语规则：在行为动词前加don’t ，句子中的行为动词用原形。

eg:肯定句：They like bananas.否定句：They don’t like bananas.注：（1）在变否定句时，如遇some应变any Here are some books.Here aren’t any books.二、肯定句变一般疑问句1、含有be动词的句子变一般疑问句规则：把be动词提至句首,第一人称变第二人称，句末句号变问号。

（I/we变成youMy/our变成your）肯定句：I am a student.一般疑问句：Are you a student?肯定句：She is my sister.一般疑问句：Is she your sister?肯定句：They are my parents.一般疑问句：Are they your parents?2、含有情态动词的句子变一般疑问句规则：把情态动词提至句首,第一人称变第二人称，句末句号变问号。

肯定句/否定句/疑问句之变形技巧一、肯定句改否定句1、be动词后加not，诸如：is not(isn't)，are not(aren't)，was not(wasn't)，were not(weren't)，am not（无缩写）。

◆He is a student. 他是一个学生。

--- He is not a student. 他不是一个学生。

◆They were watching TV then. 那时他们正在看电视。

--- They weren't watching TV then. 那时他们没在看电视。

2、情态动词等后加not，诸如：can not(can't)，will not(won't)，should not(shouldn't)，must not(mustn't)，need(needn't)等。

◆She can take care of herself. 她能照顾好她自己。

--- She can not(can't) take care of herself. 她不能照顾好她自己。

◆You should go home. 你应该回家。

--- You shouldn't go home. 你不应该回家。

3、若无法找到be动词或情态动词，就在已有动词前额外加助动词否定形式：don't/doesn't/didn't，同时将动词变原形。

◆She likes the room. 她喜欢这房间。

--- She doesn't like the room. 她不喜欢这房间。

◆We did our homework yesterday. 我们昨天做了作业。

--- We didn't do our homework yesterday. 我们昨天没有做作业。

注：句中若有some ，须将其改成any。

肯定句变否定句和一般疑问句
一、句型转换的方法
1、肯定句改否定句的方法：
在be动词后加not。

如：is not ， are not ， am not，
2、肯定句改一般疑问句的方法：
把be动词放在句首，剩下的照抄，句点改成问号。

（some 改成any，my改成your等）
二、按要求改写句子：
1、He is my father.
变否定句：
变一般疑问句：
肯定回答：
否定回答：
2、My mother is a teacher.
变否定句：
变一般疑问句：
肯定回答：
否定回答：
3、You are a nice girl.
变否定句：
变一般疑问句：
肯定回答：
否定回答：
4、I am a boy.
变否定句：
变一般疑问句：
肯定回答：
否定回答：
5、This is a beautiful bird.
变否定句：
变一般疑问句：
肯定回答：
否定回答：
6、Those are my brother's rulers.
变否定句：
变一般疑问句：
肯定回答：
否定回答：。

肯定句变为否定句的方法；一般疑问句的回答1）肯定句变为否定句的方法把肯定句改成否定句分以下情况：1、句中有be动词的，在be动词后加not；2、句中有情态动词的（can ,should，must ，would），在情态动词后面加not；3、句中没有be动词和情态动词的，在动词前加d on’t或doesn’t；①句中动词为原形的，加d on’t.如： I like apples. →Ido n’t like apples.②句中动词为三单形式的，加does n’t，并将三单式的动词还原成原形。

如：He likes apples.→ He does n’t like apples.4.肯定句中的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.2) 一般疑问句的回答a) Is Jim a student? b) Can I help you?c) Does she like salad? d) Do they watch TV?e) Is she reading?肯定回答: a) Yes, he is. b) Yes, you can.c) Yes, she does. d) Yes, they do. e) Yes, she is.否定回答: a) No, he isn’t. b) No, you can’t.c) No, she does’t. d) No, they don’t.e) No, she isn’t.由Be动词来问，也由Be 动词来回答be : am is areAm I a teacher? Yes, you are . No, you aren't.Is he Tom? Yes, he is. No, he isn't.Is she your friend? Yes, she is . No, she isn't.Is Lucy 8 years old? Yes, she is. No, she isn't.由助动词do, does提问，也用它们来回答Do you have a book? Yes, I have. No, I haven't. Does he have a pen? Yes, he does. No, he doesn't. Does it like to sleep? Yes, it does. No, it doesn't.情态动词，用can 问，也用它来答Can he swim? Yes, he can. No, he can't. 把下列句子改写为否定句、一般疑问句并做肯定、否定回答1. His father is an English teacher.(否定句)His father is not an English teacher.（一般疑问句）Is his father an English teacher?Yes, he is. No, he isn’t.2. They can swim.(cannot)They cannot(can’t) swim.Can they swim? Yes, they can. No, they can’t.3. I like reading English.I don’t like reading English.Do you like reading English? Yes, I do. No, I don’t.4. His sister goes to school on foot.（否定句）His sister doesn’t go to school on foot.（一般疑问句）Does his sister go to school on foot? Yes, she does. No, she doesn’t.5. Mrs Li and Kitty watch TV at night.Mrs Li and Kitty don’t watch TV at night.Do Mrs Li and Kitty watch TV at night?Yes, they do. No, they don’t.6. I do my homework after school.I don’t do my homework after school.Do you do your homework after school?Yes, I do. No, I don’t.课后练习把下列句子改写为否定句、一般疑问句及肯定、否定回答1. The boy does some housework at home.2. We are from China.3. Jim has some books.4. I have a football book.5. My aunt often watches TV.6. My parents can play ping-pong.7. They are my grandparents.8. Gina wants a cup of coffeeAre you a student? Are you students? Does he look cool?Can she draw? Can they dance?。

肯定句改否定句和一般疑问句一、实义动词He often goes to bed at ten.We do eye exercises every day.She came to Japan in 1990.二、系动词I am your friend.Her mother is a teacher.There are two books on the desk. Yesterday was July 1, 1995. They were in Beijing in 1990.三、进行时The girl is standing at the station.The students are playing basketball on the playground..I am looking for a dog.四、情态动词Lucy will be back in four days.You can use this dictionary. You need go tomorrow.You should study hard..将下列陈述句变为否定句和一般疑问句。

1.He found his pen under his desk.2.We must go to the meeting right now.3.I wrote him a letter last week.4.My sister sings beautifully.5.Mary missed the bus.6.This bus will take you right to the city.7.They are doing questions and answers with the teachers.8.My father has his lunch at 11:30 everyday.9.There is a policeman at the corner of the road..10.Wang made some model ships for the boys.11.I saw somebody in the room just now.12.There is some wonderful news in today’s paper.13.Xiao Li dropped the letter into the letter box.14.They are playing on the playground.15.Tom often tells them stories in French.16.After class some students play balls.17.Mary is reading newspaper now.18.I telephoned you yesterday.19.You have to go now.20.I have a house in the country.21.We did our homework together.22.They study for examination.23.We are talking about the film.24.I can go to the zoo today. 25.The first class begins at eight o’clock.26.It takes you three hours to go to Paris by air.27.I reviewed my lessons yesterday.28.I’ll go home by bus.29.He forgot to post the letter this morning.30.This room is going to be painted next week.肯定句变否定句和一般疑问句类型答案一、实义动词He often goes to bed at ten.→He does not often go to bed at ten.→Does he often go to bed at t en?We do eye exercises every day.→We don’t do eye exercises every day.→Do you do eye exercises every day? She came to Japan in 1990.→She did not come to Japan in 1990.→Did she come to Japan in 1990?二、系动词I am your friend.→I am not your friend.→Are you my friend?Her mother is a teacher.→Her mother is not a teacher→Is her mother a teacher?There are two books on the desk.→There are not two books on the desk →Are there two books on the desk? Yesterday was July 1, 1995.→Yesterday was not July 1, 1995.→Was yesterday July 1, 1995?They were in Beijing in 1990.→They were not in Beijing in 1990→Were they in Beijing in 1990?三、进行时The girl is standing at the station.→The girl is not standing at the station.→Is the girl standing at the station?The students are playing basketball on the playground.→The students are not playing basketball on the playground.→Are the students playing basketball on the playground?I am looking for a dog.→I am not looking for a dog.→Are you looking for a dog?He was writing letters at this time last night.→He was not writing letters at this time last night.→Was he writing letters at this time last night? We were having a meeting this time yesterday.→We were not having a meeting this time yesterday.→Were you having a meeting this time yesterday?四、情态动词Lucy will be back in four days.→Lucy will not be back in four days.→Will Lucy be back in four days?You can use this dictionary.→You can not use this dictionary.→Can I use this dictionary?You need go tomorrow.→You need not go tomorrow.→Need I go tomorrow?You should study hard.→You should not study hard..→should I study hard?将下列陈述句变为否定句和一般疑问句。

肯定句改否定句和一般疑问句令狐文艳一、实义动词He often goes to bed at ten.We do eye exercises every day.She came to Japan in 1990.二、系动词I am your friend.Her mother is a teacher. There are two books on the desk.Yesterday was July 1, 1995. They were in Beijing in 1990.三、进行时The girl is standing at the station.The students are playing basketball on the playground..I am looking for a dog.四、情态动词Lucy will be back in four days.You can use this dictionary.You need go tomorrow.You should study hard..将下列陈述句变为否定句和一般疑问句。

1.He found his pen underhis desk.2.We must go to themeeting right now.3.I wrote him a letterlast week.4.My sister singsbeautifully.5.Mary missed the bus.6.This bus will take youright to the city.7.They are doingquestions and answerswith the teachers.8.My father has his lunchat 11:30 everyday.9.There is a policeman atthe corner of the road..10.Wang made some modelships for the boys.11.I saw somebody in theroom just now.12.There is some wonderfulnews in today’s paper.13.Xiao Li dropped theletter into the letterbox.14.They are playing on theplayground.15.Tom often tells themstories in French.16.After class somestudents play balls. 17.Mary is readingnewspaper now.18.I telephoned youyesterday.19.You have to go now.20.I have a house in thecountry.21.We did our homeworktogether.22.They study forexamination.23.We are talking aboutthe film.24.I can go to the zootoday.25.The first class beginsat eight o’clock.26.It takes you threehours to go to Paris byair.27.I reviewed my lessonsyesterday.28.I’ll go home by bus.29.He forgot to post theletter this morning. 30.This room is going tobe painted next week.肯定句变否定句和一般疑问句类型答案一、实义动词He often goes to bed at ten.→He does not often go to bed at ten.→Does he often go to bed at ten?We do eye exercises every day.→We don’t do eye exercises every day.→Do you do eye exercises every day?She came to Japan in 1990.→She did not come to Japan in 1990.→Did she come to Japan in 1990?二、系动词I am your friend.→I am not your friend.→Are you my friend?Her mother is a teacher.→Her mother is not a teacher→Is her mother a teacher? There are two books on the desk.→There are not two books on the desk→Are there two books on the desk?Yesterday was July 1, 1995.→Yesterday was not July 1, 1995.→Was yesterday July 1, 1995?They were in Beijing in 1990.→They were not in Beijing in 1990→Were they in Beijing in 1990?三、进行时The girl is standing at the station.→The girl is not standing at the station.→Is the girl standing at the station?The students are playing basketball on the playground.→The students are not playing basketball on the playground.→Are the students playing basketball on the playground?I am looking for a dog.→I am not looking for a dog.→Are you looking for a dog?He was writing letters atthis time last night.→He was not writing letters at this time last night.→Was he writing letters at this time last night? We were having a meetingthis time yesterday.→We were not having a meeting this time yesterday.→Were you having a meeting this time yesterday?四、情态动词Lucy will be back in fourdays.→Lucy will not be back in four days.→Will Lucy be back in four days?You can use thisdictionary.→You can not use thisdictionary.→Can I use this dictionary?You need go tomorrow.→You need not go tomorrow.→Need I go tomorrow?You should study hard.→You should not study hard..→should I study hard?将下列陈述句变为否定句和一般疑问句。