句型转换(陈述句变一般疑问句特殊疑问句及练习)演示教学

小学英语所有句型转换的方法基本助动词只有三个：be, do, have, 他们没有词汇意义，只有语法作用，如协助构成进行体，完成体，被动态，否定句，疑问句等。

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，等后加not。

如：cannot3、上述都没有的，在动词前加助动词否定形式do not, does not. (don’t / doesn’t)4、some 改成any。

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，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帮忙，剩下的照抄，（some 改成any，my改成your等）句点改成问号。

初中英语句型转换一、 肯定句改的方法——一步法1. 有 be 动词(is are am were was)/情态动词(can，could, will, would, shall, should，must，may)的。

在 be 动词/情态动词后后加 not。

2. 无 be 动词/情态动词，一般现在时在动词前加 don’t 第三人称单数前 doesn't/一般过去式 didn’t。

3 加 doesn't/ did n’t 的句子注意，句子动词要变成原型。

二、 肯定句改一般疑问句的方法——三步法1. 有 be 动词/情态动词：be 动词/情态动词提到句首，其余照抄，句末用问号。

2. 无 be 动词/情态动词，在句首加 Do/Does/Did，其余照抄，句末用问号。

注意(some 改成 any，第一人称变为第二人称 my 改成 your , I 改成 you,we 改成 you,our 改成 your ）3. 加 Does、did 的句子注意，句子动词要变成原型。

例如 陈述句: They are in the park.He can play the guitar.He likes the dogs.否定句 They are not in the park. He can not play the guitar. He doesn't like the dogs一般疑问句: Are they in the park?Can he play the guitar?Does he like the dogs?特殊疑问词的用法who whom what whichwhose what color What time when where why howhow old意思 谁 谁什么 哪一个谁的 什么颜色用法 问人的身份，姓 名等 问人的身份，姓 名等(问宾语） 问人的职业或 事物是什么 问一定范围内 特指的人或物问所属关系问颜色（表语）例句He is LiLieWho is he ?He is my brother. Who is he ?I can ask him the question.Whom can you ask the question?He is a worker. What is he?He has a book. What does he have ?The big box is mine. Which box is yours?The girl at the door is Ann. Which girl isAnn?This is her book. Whose book is this ?This book is hers. Whose is this book?My skirt is red. What color is your skirt?几点 什么时候 什么地方 为什么 怎样多大几岁问点时间 问时间 问地点（状语） 问原因 问健康状况、 做事的方式等 问年龄We play games at five in the afternoon ? What time do you play games? We play games in the afternoon ? When do you play games? We play games at home on Sunday ? Where do you play games on Sunday? He isn't at school today because he is ill. Why isn't he at school today ? He is fine/strong. How is he ? I go home by bike. How do you go home? He is ten. How old is he ?how多少跟复数名词， There are thirty boys in my class.many问数量How many boys are there in your class?how多少跟不可数名词 There is some milk in the bottle.much问数量或价钱 How much milk is there in the bottle?how far 多远问路程It's five kilometers away from here?How far is it from here?how soon 多久问 in+一段时间 He can finish it in half an hour.How soon can he finish it ?how long 多久问一段时间， He has lived here for a year.问物体的长短 How long has he lived here?The desk is one meters long.How long is the desk ?how often 多久问频率I go to see my parents once a month.（一次）How often do you go to see your parents?How 的疑问句辨析一、how many 和 how much 的区别how many 用来询问可数名词的数量，它的句式是:How many+复数名词+一般疑问句＋? how much 用来询问不可数名词的数量，也可询问价格。

陈述句变一般疑问句特殊疑问句及练习初中英语句型转换基本助动词只有三个：be, do, have, 他们没有词汇意义，只有语法作用，如协助构成进行体，完成体，被动态，否定句，疑问句等。

一、肯定句改否定句的方法——一步法1. 有be动词/情态动词/助动词（will, shall，have等）：在be动词/情态动词/助动词后面加not。

2. 无be动词/情态动词/助动词，在动词前加don’t / doesn’t / didn’t。

3. some ---- any,too-- either，already—yet, and—or, a lot of (=lots of)---many或much4. 情态动词：can， should，must，may，need，would，could。

5. 加does、did 的句子注意，句子动词要变成原型。

把下列句子变成否定句：1. I am listening to music. _______________________________________3. Sarah can clean the classroom. ________________________________________4. They are in the zoo. ________________________________________5. There are some flowers in the vase. ________________________________________6. We need some masks. _________________________________7. They like making the puppet. _________________________________8. He put a book on his head._________________________________________________9. We play basketball on Sundays._________________________________________________10. Tom likes listening to music ____________________________________________二、肯定句改一般疑问句的方法——三步法1. 有be动词/情态动词/助动词：把be动词/情态动词/助动词提到句首，其余照抄， some---any（但是，若在表示请邀请、请求的句子中，some可以不变），too-- either，already—yet, and—or, my---your，I /we---you, our—your 句末用问号。

小学英语所有句型转换的方法基本助动词只有三个：be, do, have, 他们没有词汇意义，只有语法作用，如协助构成进行体，完成体，被动态，否定句，疑问句等。

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，等后加not。

如：cannot3、上述都没有的，在动词前加助动词否定形式do not, does not. (don’t/doesn’t)4、 some 改成any。

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，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帮忙，剩下的照抄，（some 改成any，my改成your等）句点改成问号。

小学英语所有句型转换的方法基本助动词只有三个：be, do, have, 他们没有词汇意义，只有语法作用，如协助构成进行体，完成体，被动态，否定句，疑问句等。

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。

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。