九年级英语unit7被动语态复习课件.pptVIP

The Passive Voice;复习目标 1、掌握语态基本概念； 2、熟悉常见语态转换； 3、在语篇中理解和运用被动语态。 复习重点: 1.一般现在时和一般过去时的被动语态； 2.带情态动词的被动语态。 3.一般将来时和现在完成时的被动语态。 复习难点: 1.被动语态中be形的确定； 2.主动语态中省略to的宾补在被动语态中须补上to.;基础知识回顾 1、观察结构 执行者 + 动词+承受者 Workers make cars in this factory. 主 谓 宾 承受者 + be+动词过去分词 +(by +执行者) Cars are made (by workers) in this factory. 主 谓 2、总结概念： 谓语动词的执行者作主语，用主动语态。 谓语动词的承受者作主语，用被动语态。 分类与构成 4. 用法： a. 当不知道谁是动作的执行者时； b. 没有必要或不想指出谁是动作的执行者时； c. 只需强调动作的承受者时。 ;She waters the flowers every day.;The students planted many trees in 2006.;My daughter will feed the ducks.;They have done their homework for one hour .;She can do these actions well.; 知识小结 主动语态变被动语态的步骤： 1、主动语态的宾语变为被动语态的主语； 2、主动句的谓语动词变为被动结构； 3、主动句的主语变为被动句的宾语，由by引出，当不强调动作的执行者时，常省略。;A guessing competition;;be + PP;[1]. Now English ____ by more and more people all over the word. A. speaks B. is spoken C. was spoken;[2]. The lost boy ____ at the street corner last night. A. was found B. is found C. was looked for;[3]. More man-made satellites ____ in the future. A. will send up B. will be sent up C. are sent up;[4]. Three bridges ____ since last year. A. have built B. were built C. have been built;[5]. Flowers ____ every day. A. has been watered B. should be watered C. should water;[6]. It __ sweet. A. is smelled B. smells C. smell [7]. This pen ___ well. A. is sold B. sell C. sells;[8]. Many people ___ during the earthquake in May, 2008. A. were died B. dead C. died [9]. What ____ to that man ? A. happened B. was happened C. happen;[11]. We laugh by the story. A. were made B. were made to C. made;[10]. Your desk ___. A. needs repair B. needs repairing C. needs to repair;11. 在汉语中，有一类句子不出现主语，在英语中一般可用被动结构来表示，例如： 据说…… It