各种时态及其对应下的被动语态ppt课件.ppt
初中英语八种时态初中英语八种时态使用背景 1.一般现在时： 2.一般过去时： 3.现在进行时： 4.过去进行时： 5.一般将来时： 6.过去将来时： 7.现在完成时： 8.过去完成时：初中英语八种时态结构 1.一般现在时： 2.一般过去时： 3.现在进行时： 4.过去进行时： 5.一般将来时： 6.过去将来时： 7.现在完成时： 8.过去完成时：初中英语八种时态结构 1.一般现在时： 2.一般过去时： 3.现在进行时： 4.过去进行时： 5.一般将来时： 6.过去将来时： 7.现在完成时： 8.过去完成时：初中英语八种时态的否定结构 1.一般现在时： 2.一般过去时： 3.现在进行时： 4.过去进行时： 5.一般将来时： 6.过去将来时： 7.现在完成时： 8.过去完成时：被动语态 结构（structure）： 主语+ + by sb. 表示“被”， 不同时态下的被动语态，主要看be动词的变换，下面我们来看各种时态下的被动语态形式和变化。各种时态下的被动语态 1、一般现在时：+ 2、一般过去时：+ 3、现在进行时：+ 4、过去进行时：+ 5、一般将来时：+ 6、过去将来时：+ 7、现在完成时：+ 8、过去完成时：+ 各种时态下的被动语态1、一般现在时：I help him.He is helped by me. 2、一般过去时：I helped him.He was helped by me. 3、现在进行时：I am helping him.He is being helped by me. 4、过去进行时：I was helping him.He was being helped by me. 各种时态下的被动语态 5、一般将来时：I will help him. He will be helped by me. 6、过去将来时：I would help him. He would be helped by me. 7、现在完成时：I have helped him. He has been helped by me. 8、过去完成时：I had helped him. He had been helped by me. 练习：填空并转换成被动句 1、一般现在时：Jack (write) English. 2、一般过去时：Jack (write) English. 3、现在进行时：Jack (write) English. 4、过去进行时：Jack (write) English. 5、一般将来时：Jack (write) English. 6、过去将来时：Jack (write) English. 7、现在完成时：Jack (write) English. 8、过去完成时：Jack (write) English. 答案： 1、一般现在时：Jack writes English. English by Jack. 2、一般过去时：Jack wrote English. English by Jack. 3、现在进行时：Jack is writing English. English by Jack. 4、过去进行时：Jack was writing English. English by Jack. 5、一般将来时：Jack will write English. English by Jack. 6、过去将来时：Jack would write English. English by Jack. 7.现在完成时：Jack has written English. English by Jack. 8、过去完成时：Jack had written English. English by Jack. 补充部分补充部分1. 主动结构表被动意义open, write , read , sell , wash等词作不及物动词时，它们的主语为物，可以用主动语态表被动意义。 This kind of shirt sells well.2. look, sound, taste, smell等系动词用主动表被动意义。例： It smells wonderful. Moon-cakes taste delicious.3. 在be worth doing中,doing表被动意义。例：This book is worth reading. 4. want/need/require + doing =want/need/require + to be done 例：My bike needs repairing. =My bike needs to be repaired. 我的自行车需要修理。1. The window is dirty.-I know. It _ for weeks.A.hasnt cleaned B.didnt cleanC. wasnt cleaned D. hasnt been cleaned2. The heros story _differently in the newspapers.A.was reported B. was reportingC.reports D. reported3.Why did you leave that position?-I _a better position at IBM.A.offer B. offered C.am offered D.was offered4. More than a dozen students in that school_abroad to study medicine last year.A. sent B. were sent C.had sent D.had been sent
