【被动语态专项分类练习题】在英语学习中，被动语态是一个非常重要的语法知识点。它不仅能够帮助我们更准确地表达动作的承受者，还能使语言更加正式或客观。为了帮助大家更好地掌握这一语法结构，下面将提供一套被动语态专项分类练习题，涵盖不同句型和时态，适合初中及以上水平的学习者。
一、基础句型转换（主动变被动）
1. The teacher praised the students for their hard work.
→ The students were praised by the teacher for their hard work.
2. They will build a new library next year.
→ A new library will be built next year.
3. She is writing a letter to her friend.
→ A letter is being written to her friend.
4. We have finished the project.
→ The project has been finished.
5. He broke the glass yesterday.
→ The glass was broken by him yesterday.
二、一般现在时与一般过去时的被动语态
6. The children play football in the park every day.
→ Football is played in the park by the children every day.
7. The cake was eaten by my sister.
→ My sister ate the cake.
8. Water is used for drinking.
→ People use water for drinking.
9. The book was published in 2020.
→ Someone published the book in 2020.
10. The door is opened by the guard.
→ The guard opens the door.
三、现在进行时与将来时的被动语态
11. They are repairing the car.
→ The car is being repaired.
12. The meeting will be held tomorrow.
→ They will hold the meeting tomorrow.
13. The report is being prepared by the team.
→ The team is preparing the report.
14. The house will be painted next week.
→ They will paint the house next week.
15. The problem is being discussed now.
→ They are discussing the problem now.
四、含有情态动词的被动语态
16. You must complete the form.
→ The form must be completed.
17. They can fix the computer.
→ The computer can be fixed.
18. The package should be delivered today.
→ Today, the package should be delivered.
19. We may not use this method.
→ This method may not be used.
20. The task could be done earlier.
→ Earlier, the task could have been done.
五、综合练习（混合时态与句型）
21. The movie was shown at the cinema last night.
→ Last night, the movie was shown at the cinema.
22. The cake had been eaten before we arrived.
→ Before we arrived, the cake had been eaten.
23. The letter will be sent by post.
→ By post, the letter will be sent.
24. The problem is being solved by the engineers.
→ The engineers are solving the problem.
25. The room is cleaned every morning.
→ Every morning, the room is cleaned.
通过这些练习题，可以系统地巩固被动语态的使用方法，提升在不同语境下正确运用的能力。建议在做题过程中注意以下几点：
- 主语和宾语的转换：主动语态中的宾语通常会变成被动语态中的主语。
- 动词形式的变化：根据时态选择正确的“be + 过去分词”结构。
- 介词“by”的使用：表示动作执行者时，要用“by”。
希望这份练习题能对你的英语学习有所帮助！
