( a )*What’s it made of ? --It’s made of metal.--It’s used for riding. --It’s made in China.What’s it used for ? Where is it made ? 被动语态的用法： 1 、当不知道谁是动作的执行者时； 2 、没有必要或不想指出谁是动作的执行者时； 3 、只需强调动作的承受者时。 e.g. (1) Trains are made in Zhuzhou. (2) English is spoken in Canada. (3) Rice is grown in South China. 助动词 be + 及物动词动词的过去分词e.g. 1.They make trains in Zhuzhou . ( 主动语态 ) Trains __________ in Zhuzhou. ( 被动语态 ) 2.The farmers grow cotton every year. Cotton _______ by the farmers every year. 3.Many people speak English. English __________ by many people. are madeis grownis spoken被动语态的构成：(be 有人称、时态和数的变化 ) I. 一般现在时被动语态的构成： 1. She often cleans the house. The house ____________ by her. is often cleanedare plantedIscalledam/is/are+ 动词的过去分词 2.We plant trees in spring every year. Trees _________ by us in spring every year. 3. Do they call the dog “Bobby”? ______ the dog ______ “Bobby” by them? II. 一般过去时被动语态的构成： e.g 1. They built the house last year. The house _________last year. was builtwere takenWas caughtwas/were+ 动词的过去分词2. Mike took these photos in the park. These photos _________ by Mike in the park 3. Did the policeman catch the man just now? _____ the man ______ by the policeman just now? III. 含有情态动词的被动语态：e.g 1. They must build a hotel in the town. A hotel __________ by them in the town. 2. Must we keep the food in a cool place? ____ the food _________ in a cool place? 3. When may I hand in the homework? When _____ the homework __________?must be builtMustbe keptmaybe handed in 情态动词 + be + 动词的过去分词 单项选择： ( ) 1. My pencil ___ the day befor...
