陈述句变一般疑问变法1句子中有be动词的（包括am,is,are,was,were）, 把be动词放在句首，剩下的照抄，（some 改成any，I改成you，my改成your，）句点改成问号；2句子中有can，shall， will，must等的，把他们放在句首，剩下的照抄，（some 改成any，I改成you，my改成your，）句点改成问号；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，I改成you，my改成your，）句点改成问号。动词形式是第三人称单数时用Does,动词形式是过去式时用did。陈述句变否定句变法1如果句子中有be动词（am,is,are,was,were）、情态动词（can，shall， will，must等）、助动词（Do，Does，Did）、have, has等，直接在他们后面加not，some 改成any，其他不变；2句子中有实意动词的（go, dance, play, sing, work, study），在动词前面加do not，或does not(动词形式是第三人称单数时),或did not(动词形式是过去式时), some 改成any，其他不变.陈述句变一般疑问句练习1. His father is an English teacher. 2. These cats are crying. 3. They can swim. 4. I like to read English. 5. I go to school on foot. 6. He likes English. 7. His father goes to work by bus. 8. He is crying under the tree. 9. His birthday is on the twentieth of November. 10. Mrs. Li and Kitty are in a big shop. 11. Kitty is wearing her new uniform. 12. The boy under the tree is hungry. 13. He goes to school every day. 15. I want to have a model car. 16. She wants a cup of coffee. 17. Mrs. Li and Kitty watch television at night. 18. I do my homework after school将下列句子改成一般疑问句：1. It is a lovely dog2. She is lovely girl.3. He is my father. 4.They are Lilys cousins. 5.We are classmates. 6. I am a doctor. 7.There is a bird in the tree. 8. There are many stars in the sky. 9.They are good friends. 10.I love my parents. 11.I play computer games every night. 12.There are many books on the shelf. 13.There is an ostrich in the zoo. 14.We have a pleasant home. 15.We like to climb the mountain. 16.They go to church on Sunday. 17.They walk to school every morning. 18. It is a beautiful park. 19.It is a big map. 20.You are a singer.