句型转换的方法一.肯定句变否定句1.句子中有be或者can，在be或者can后加not。

1) I am a student. → I am not a student.2) They are blue . → They aren’t blue.3) He is Tom. → He isn’t Tom2.无be动词或can，谓语是动词原形，在动词前加don’t。

) I have a book . → I don’t have a book.2) They like Chinese . → They don’t like Chinese.3) We come from China. → We don’t come from China.3.无be动词或者can，并且谓语动词是第三人称单数，在动词前加doesn’t，动词用原形。

1)She has a basketball. →She doesn’t have a basketball2)M aria likes China. → Maria doesn’t like China.3)Jane comes from the U.S.A. →Jane doesn’t come from the U.S.A.变否定句some要变成any练习：将下列句子变成否定句。

1. I am a teacher. → I ______ a teacher.2. We are students. → We ________ students.3. Jane is a girl. → Jan e ____ a girl.4. They like English. → They _____ like Chinese5. I come from China. → I _______ come from China.6. He likes Chinese. → He_______ like Chinese.7. Maria comes from Cuba. →Maria______ come from Cuba.8. We know Maria. → We ________ know Maria二.肯定句变一般疑问句1.句子中有be或者can，把be或者can提到句首,第一人称I，we改为第二人称you1) I am a student. →Are you a student?2) They are blue. →Are they blue?3) He is Tom. →Is he Tom?2.无be动词或can，并且谓语是动词原形，在句首加do。

1).I have a book . →Do you have a book?2) They like Chinese . →Do they like Chinese?3) We come from China. →Do you come from China?3.无be动词或者can，谓语动词是第三人称单数，在句首加Does，动词用原形。

1) She has a basketball . →Does she have a basketball?2) Maria likes China. → Does Maria like China?3) Jane comes from the U.S.A. →Does Jane come from the U.S.A?4) She knows Maria. → Does she know Maria?变疑问句some要变成any练习:将下列句子变成一般疑问句。

1. I am a teacher. ____ ____ a teacher?2. They are students. ______ ______ students?3. Jane is a girl. ______ ______ a girl?4. They like English. ____ they like English?5. I come from China. ____ you come from China?6. He likes Chinese. ____ he_____ Chinese?7. Maria comes from America._____ Maria _____ from America?8. We speak Chinese. _____ you_____ Chinese?变一般疑问句和否定句专项训练1.Bob and Tom like comedies.一般疑问句_________________________________________ ?否定句 __________________________________ _2. They want to join the English club.一般疑问句_________________________________________ ?否定句 ________________________________ ___3. His brother has a baseball.一般疑问句? 否定句_____________________________________ ____ 4. I think they watch TV.一般疑问句? 否定句__________________________________ _ 5. Mary has lunch at 12 o’clock..一般疑问句 _________________________________________ ?否定句 ___________________________________6. She likes hamburgers .一般疑问句_________________________________________ ?否定句 ___________________________________7. His father is an English teacher.一般疑问句 _________________________________________ ?否定句 ___________________________________8. These cats are running.一般疑问句 _________________________________________ ?否定句 ___________________________________9. They can swim.一般疑问句_________________________________________ ? 否定句 _________________________________10. I like to read（阅读） English.一般疑问句_________________________________________ ?否定句 _____________________________1. He spends one hour in doing homework every day.一般疑问句? 否定句2. My father is sending an email to his friend.一般疑问句? 否定句3. I have an English class on Sunday morning.一般疑问句? 否定句4.She feels tired.一般疑问句? 否定句5. I have a big present.一般疑问句? 否定句6.My father is in the study(书房).一般疑问句? 否定句7.They have a lot of food.一般疑问句? 否定句8.He has lunch at school every day last year.一般疑问句? 否定句9.There is some ink in the bottle.一般疑问句? 否定句10.There are some books on the desk.一般疑问句?否定句简单的方法：找句子里是否有be动词（am, is, are, was, were）情态动词（can, may, must, could, should）如果有变否定句就可以直接在这些动词后直接加not 变疑问句就将这些词置于主语前如果没有变否定句要靠助动词don’t,doesn’t,didn’t来帮助。

变疑问句要靠助动词do, does, did 来帮助。

变一般疑问句口诀：先找be动（am, is, are, was, were）和情态（can, may, must, could, should），直接提到句首来。

找不到，别急坏，do, does, did帮忙快。

除了单三用does，其余都用do 来带。

过去时态很简单，did一人都包揽。

还要小心被some害，改成any才痛快。

第一人称my和our都变your，I和we改成第二人称you要谨记。

变否定句口诀：先找be动和情态，找到直接后面带。

找不到，别急坏，don’t，doesn’t，didn’t当帽子带，帽子上有照妖镜，照得动词现原形。

还要小心被some害，改成any才痛快。

对划线部分提问步骤：先找一个特殊疑问词代替横线部分并放在句首，再把剩余部分变成一般疑问句，划线部分去掉，不能出现在新的问句当中。