小学英语句型转换和时态讲解与练习

否定句：be动词（am、is、are）+not、情态动词can+ not、助动词（do、does）+ not如何将一个肯定的陈述句改为否定句：1、看句中有无be动词，如有，直接在be动词后+ not。

2、看句中有无情态动词，如有，直接在情态动词后+ not。

3、如上述二者都没有，就应用助动词+ not。

分四个步骤：（1）肯定陈述句中本来是没有助动词的，要加上去，位置在主语（某人或某物）后，动词前。

（2）确定助动词用do、does，根据句中动词，动词是原形的助动词就用do，动词是第三人称单数的助动词就用does，$（3）在助动词后加not。

（4）原句中动词假如发生变化就要恢复成原形。

强调一点，有some的要考虑是否要用any。

1.I am Tom. ______________________________2.He is nine. ______________________________3.They are4.I can fly a kite. ______________________________5.He can make atoy. ______________________________6.You must go home7.I like Jinan.8.'9.He likes swimming.10.He has many books.11.He has some books.12.There is a pen on the desk.13.There are some water in theglass. ______________________________14.You have got some books.___________________________________15.You have some books.16.He has got some apples.17.He has some apples._________________________________________18.I like to watch TV. ______ .19.20.Xiao Fang and I go to the libraryeverSaturday. .21.Tim swims verywell. ___________ .22.Mr. Smith has many books about thecars. .23.I want to play with my friends. .24.We feel coldtoday. _____________ .25.Bob reads English everyday. .26.We do our homework atschool. .27.Mr. White has two houses. .一般疑问句如何将一个肯定的陈述句改为一般疑问句：，1、看句中有无be动词，如有，把be动词提到句首即可。

2、看句中有无情态动词，如有，把情态动词提到句首即可。

3、如上述二者都没有，就应把助动提到句首。

分四个步骤：（1）肯定陈述句中本来是没有助动词的，要加上去，位置在主语（某人或某物）后，动词前。

（2）确定助动词用do还是does，根据句中动词，动词是原形的助动词就用do，动词是第三人称单数的助动词就用does（3）把助动词后提到句首。

（4）原句中动词假如发生变化就要恢复成原形。

强调一点，有some的要考虑是否要用any。

28.I am Tom. ______________________________29.He is nine. ______________________________30.,31.They are32.I can fly a kite. ______________________________33.He can make atoy. ______________________________34.You must go home35.I like Jinan.36.He likes swimming.37.He has many books.38.He has some books.39.There is a pen on the desk.40.There are some water in theglass. ______________________________41.、44.He has got some apples.45.He has some apples._________________________________________46.I like to watch TV. ______ .47.Xiao Fang and I go to the libraryeverSaturday. .48.Tim swims verywell. ___________ .49.Mr. Smith has many books about thecars. .50.I want to play with my friends. .51.We feel coldtoday. _____________ .52.*53.Bob reads English everyday. .54.We do our homework atschool. .55.Mr. White has two houses. .特殊疑问句表示疑问，有疑问词（在开头），回答有很多种可能。

常用疑问词：一、选择正确的单词填空(who, where, when)is that pretty girl She is my sister.#are Jack and Tom They are behind you.do you go to school I go to school from Monday to Friday.has a beautiful flower John has a beautiful flower.are they They are my parents.is my mother She is in the living room.are you going We are going to the bakery(面包坊).do Jim and Wendy play ball They play ball in the afternoon.does he jog He jogs in the park.are you from I'm from Changchun city.二．用what time, what color, what day, what填空。

|1. A: ______ _______ is it B: It is nine o’clock.2. A: ______ _______ does your mother get upB: My mother gets up at 6:30.3. A: ______ _______ do you go to bed B: I go to bed at 10:00.4. A: ______ _______ do Diana and Fiona have supper B: Diana and Fiona have supper at 18:00.5. A: ______ _______is it B: It is purple.6. A: ______ _______ is the sky B: The sky is blue.7. A: ______ _______ is your coat B: My coat is black.8. A: ______ _______ is the dog B: The dog is white.,9. A: ______ _______ is today B: Today is Monday.10. A: ______ _______ is tomorrow B: Tomorrow is Tuesday.11. A: ______ _______ was yesterday(昨天) B: Yesterday was Sunday.12. A: ______ _______ do you like B: I like red.13. A: ______ is this This is a computer(电脑).14. A: ______ are you doing B: We are playing basketball.15. A: ______ does your mother do B: My mother is a policewoman.16. A: ______ are those B: Those are peppers(辣椒).17. A: ______ is in the box B: A lovely doll is in the box.18. A: ______ is on the table B: The apple is on the table.。

19. A: ______ is in the classroom The blackboard is in the classroom.20. A: ______ ______ ______ B: Mary is hungry.21. A: ______ ______ ______ ______ ______B: My favorite color is pink.22. A: ______ ______ ______ ______ B: Nick is playing table tennis.三、就画线部分提问is my father.are under the tree.often watch TV after dinner.(晚饭后) (提示：饭后强调的是时间问题。

)swims in the swimming pool.(游泳池)。

flies in the sky.often brush my teeth in the evening.likes to play with Bill.'s father plays badminton(羽毛球) every weekend. supermarket is near the school.laptop(笔记本电脑) is on the table.has a pair of earrings(耳环).flowers are in the flower pot(花盆).grandpa took us to the zoo.put the gold fish(金鱼) into the fish tank(鱼缸).[monkey sleeps at night.四．连线：（Match）1. What’s on the chair There is a book in the bag.2. How is your father These are apples.3. What are these I go to school by bus.4. What is in the bag The radio is on the chair.，5. How do you go to school My father is fine.6. How much is it I wash my face in the morning.7. What time is it I have two hands.8. When do you wash your face It is four o’clock.9. How many hands do you have It is 5 RMB(人民币). do you have lunch I have lunch at noon.#句型转换练习: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 am a student. →A:B:]2. They are English cars. →A:B:3. This is a pencil-box. →A:B:4. Its name is Polly. →A:B:5. These are my English books. →A:B:6. I know his name. →A:B:】7. Please look after your cat. →A:B:8. There is some money in the purse. →A: B:9. There are many apples on the tree. →A: B:10. You can go to have a look. →A:B:11. Come here, please. →AB:；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 there a picture on the wall →A: B:5. Are there any trees on the hill →A: B:6. Can you see a bird in the sky →A: B:7. Do you know Mr Wang →A: B:;三、单复数句变换(把单数的句子变成复数，复数的变成单数)：1. Is this your box →:2. There is a boy in the picture. →3. That is his new book. →4. It is a Chinese car. →5. She is a woman worker. →^6. We have many old pictures. →7. Are those English books →8. They are Japanese students. →9. Who are those men over there →10. They are some policemen. →￥四、就划线部分提问：1. Your book is here. →___________ ________ yourbook2. I’m thirteen. →3. Bill is in Class Five. →___________ ________ ______Bill __________is in Row Nine. →___________ ________ ________ she ________5. That’s a map in English. →___________ ___________ in English6. Seven and eight is fifteen. →___________ ___________ seven and eight7. They are boxes →__________ ____________ they8. The woman is Mrs. Read →__________ _____________ the woman、9. Mr. Zhang is at home. →____________ Mr. Zhang flowers are near the window. →___________ ________ the flowersflowers near the window are purple. →_________ _________ are purpleflowers near the window are purple. →____________ are purpleisn’t at school today. →___________ isn’t at school todayare some books under the tree. →_________ _________ under the treeare fifty books on the desk. →______ _____ _____are there on the deskis a child in the tree. →________ ______ ______ are there in the treefather is a doctor. →__________ is ____________ fatheris fine. →___________ is he.is five. →___________ __________ is heapples are green. →_________ __________ are those applesgreen apples are mine. →________ _________ are ________are their shoes. →_____________ ______________ are these23. It’s twelve o’clock now. →_______ __________________ _________now24. Kate is Mr. Green’s daughter. →___________ ____________ is Katelike the pictures in this book. →______ _____you like in this book’s seven ten now. →_______ ________ ______ ______nowLei’s uncle is a policeman. →am Kate’s brother. →~Green is an English teacher. →Sally is their Chinese teacher. →五、把下列句子改为否定疑问句，并作肯定和否定回答.1.I am Chinese. →2.3.I can open the door and get the ball. →4.5.I know his address. →6.7.It’s over the hill. →8.9.10.Miss Gao is an English teacher. →11.12.There’re six people in my family. →13.14.There is some money on the floor.六．按要求改写句子。