龙华业余英语培训班　　英语口语考试   何时运用被动语态：
　　(1)强调动作的接受者：America was discovered by Columbus.
　　(2)不知谁是动作的执行者：You are wanted on the phone.
　　(3)作客观说明：It is said that the meeting has been put off. (经典句型)
　　主动变被动的基本方法：(说起来容易，掌握起来需要用心!)
　　(1)主动语态中的宾语变为被动语态的主语。
　　(2)谓语动词变为由“be + 过去分词”的形式，配合时态作相应变化。
　　(3)主动语态主语置于介词 by之后，如无必需，则省略。
　　(4)不及物动词没有被动语态。
　　业余英语培训班 现 在 do (does) →am / is / are + done
　　We keep the piano in the living-room.
　　→The piano is kept in the living-room.
　　过 去 did→was / were + done
　　They built the bridge in 1980.
　　→The bridge was built in 1980.
　　将 来 will/shall do → will/shall + be + done
　　He will read the book tomorrow.
　　→The book will be read tomorrow.
　　现在完成 have/has done → have/has + been + done
　　We have delivered the newspaper.
　　→The newspapers have been delivered (by us).
　　过去完成 had done → had been done
　　She had seen the film before she came here.
　　→The film had been seen before she came here.
　　将来完成 will/shall have done → will/shall have + been + done
　　By the end of this term we shall have finished 80 texts.
　　→By the end of this term 80 texts will have been finished.
　　现在进行 am/is/are doing → am/is/are + being + done
　　They are drawing the picture.
　　→The picture is being drawn by them.< /p>
　　过去进行 was/were doing → was/were + being + done
　　He was reviewing their lessons at this moment yesterday.
　　→Their lessons were being reviewed at this moment yesterday.
　　情态动词 may may
　　can can
　　must must
　　should do → should + be + done
　　ought to ought to
　　used to used to
　　You must write an article on the subject.
　　→An article must be written on the subject.
　    观澜业余英语培训班　测试精编
　　1. Since the first space mission, many communication satellites ________.
　　A. was launched B. are launched C. have been launched D. had been launched
　　2. What kind of advice ________ you?
　　A. has gave B. was gave C. had been given to D. has given
　　3. The slave ________ from morning till night.
　　A. madeto work B. was made working C. was made worked D. was made to work
　　4. The construction of the laboratory ________ by the end of July.
　　A. must be completing B. must complete
　　C. must have completed D. must have been completed
　　5. Your proposal ________ by the committee soon.
　　A. is discussed B. has been discussed
　　C. is going to be discussed D. will have been discussed
　　(后设答案，大家不要偷看哦~(*^__^*) 嘻嘻……)
　　KEYS
　　1. C 2. C 3. D 4. D 5. C
业余英语培训班　　英语口语班