各种 时 态 和语 态 的结 构 : 1. do/doesam/is/are+done 2. didwas/were+done 3. am/is/are doing am/is/are+being+done 4. was/were+doing was/were+being+done 5. will dowill be done am/is/are going to do am/is/are going to be done 6. would dowould be done was/were going to do was/were going to be done 7. have/has done have/has been done 8. had donehad been done 含情态 动词的主动和被动: 情态 动词+do情态 动词+be+done Exercises: 1. I clean my room every day. 2. I cleaned my room yesterday. 3. I am cleaning my room now. 4. I will clean my room this evening. 5. I have just cleaned my room. 6. You can clean your room tomorrow. More exercises: 1. People use knives for cutting things 2. They filled the box with books. 3. They make the bikes in the factory. 4. People speak English in many countries. 5. They will paint the house again next year. 6. I have told the children many times not to play with fire. 7. The workers are repairing the bridge. 8. You must finish the article before Friday. 9. He is teaching us how to operate the new machine. 10. They have repaired the bridge. 11. My father wrote the book 12. We must do something to help her. 13. Our village has built a plastic factory. 14. We call him Jim. 15. We must take good care of the young trees. 16. My mother made me a cake. 17. We saw him enter the classroom. 18. I saw them playing football. 19. I made him join the English Corner. 20. I often hear her sing in the next room. 将 主动 语 态 变 被动 语 态 应 注意几个 特殊情况 : 一、含双 宾 语 的主动 结 构 变 为 被动 结 构 时 ,有两种方法: ①将 间接宾 语 变 为 主语 ,直接宾 语 保持不变 ; ②将 直接宾 语 变 为 主语 ,间接宾 语 用介词 to或 for...