一般现在时的变化（一）否定形式：1、句子中有be动词（is, am、are）或情态动词（can、may、need、will），在be动词或情态动词后面加上not。
2、如果句子中没有be动词或情态动词，那么根据主语在后面加入don’t(非三单)或doesn’t （第三人称单数）。
（二）一般疑问句：1、句子中有be动词或情态动词，将be动词或情态动词提前，放到主语前面。
注意句中第一人称要改成第二人称。
2、如果句子中没有be动词或情态动词，那么根据主语判断加入do(非三单)或does（第三人称单数）。
注意句中第一人称改成第二人称。
课堂练习一。
用所给词的正确形式填空1. We often______(play) in the playgound.2. He _____(get) up at six o’clock.3. _____you ______(brush) your teeth every morning.4. What (do) ______he usually (do)______ after school?5. Danny _____(study) English,Chinese,Maths,Science and Art an school.6. Mike sometimes ________(go) to the park with his sister.7. At eight at night, she __________(watch) TV with his parents.8. ________ Mike________(read) English every day?9. How many lessons_________your classmate________(have) on Monday?10. What time_________his mother_________(do) the housework?二、改句子1. Do you often play football after school?(肯定回答)2. I have many books.（改为否定句）3. Gao Shan’s sister likes playing table tennis（改为否定句）4. She lives in a small town near New York.（改为一般疑问句）5. I watch TV every day.（改为一般疑问句）6. David has got a goal.（改为一般疑问句）7. We have four lessons.（否定句）8. Nancy doesn’t run fast（肯定句）9. My dog runs fast.否定句：一般疑问句：10. Mike has two letters for him.一般疑问句：否定句：11. I usually play football on Friday afternoon.否定句:一般疑问句:12. Su Yang usually washes some clothes on Saturday.否定句:一般疑问句:13. Mingming usually waters the flowers every day否定句:强化训练一、变否定句。
1. He wants a book.2. Jimmy washes hands before dinner.3. Lisa likes milk very much.4. They walk to school.5. Lingling and Dandan are 10 years old.6. I am Chinese.7. Ben is from America.二、变一般疑问句并作肯定和否定回答。
1.He wants a book.2. Jimmy washes hands before dinner.3. Lisa likes milk very much.4. They walk to school.5. Lingling and Dandan are 10 years old.6. I am Chinese.7. Ben is from America.三。
用所给词的正确形式填空1. We often___________(play) on the playgound.2. He _________(get) up at six o’clock.3. __________you _________(brush) your teeth every morning.4. What____ (do) he usually _____(do) after school?5. Danny _______(study) English, Chinese, Maths, Science and Art at school.6. Mike sometimes __________(go) to the park with his sister.7. At eight at night, she ________(watch) TV with his parents.8. ________ Mike________(read) English every day?9. How many lessons ______your classmate____(have) on Monday?10. What time ____his mother_________(do) the housework?11. He often ______(have) dinner at home.12. Daniel and Tommy___ (be) in Class One.13. We____ (not watch) TV on Monday.14. Nick _____(not go) to the zoo on Sunday.15. They______ (like) the World Cup?16. What ____they often ____(do) on Saturdays17. Your parents________ (read) newspapers every day?18. The girl______ (teach) us English on Sundays.19. She and I _______(take) a walk together every evening.20. There_______ (be) some water in the bottle.21. Mike ______(like) cooking.22. They_______ (have) the same hobby.23. My aunt______ (look) after her baby carefully.24. You always____ (do) your homework well.25. I_____ (be) ill. I’m staying in bed.26. She_____ (go) to school from Monday to Friday.27. Liu Tao _____(do) not like PE.28. The child often______ (watch) TV in the evening.29. Su Hai and Su Yang ______(have) eight lessons this term.30. －What day ______(be) it today? －It’s Saturday.31. Don’t make a noise. Grandpa __________(sleep).32. Tom’s family__________(watch) TV.33. It ________(take) me two hours to finish my homework last night.34. What ______ your mother _______(do) every evening? She _______(wash) clothes.35. _______ it ______ (rain)every day?36. What _______(do) you _______ on Sundays ? We ________ (play) football.37. There ________ (be) a football match on TV every morning.38. They often ________ (visit) the Great Wall.39. Who _______ (dance) the best in your class?40. He _____________ (not come).41. The earth __________ (move) round the sun.42 She ________ (buy) a sweater.43. Mr. Wang often______( go) to Shanghai.四。
改句子1. Do you often play football after school?(肯定回答) __________2. I have many books.（改为否定句）3. Gao Shan’s sister likes playing table tennis（改为否定句）4. She lives in a small town near New York.（改为一般疑问句）5. I watch TV every day.（改为一般疑问句）6. David has a goal.（改为一般疑问句）7. We have four lessons.（否定句）。