学 科：英语授课者：谢军授课内容：Passive Voice关键词：Passive Voice, Active Voice, the Structure: Be+V.P.P教材版本：牛津高中英语“Advance with English”年级：高一课名：M4 Unit 3 Grammar 被动语态 What is the Passive Voice?被动语态基本用法当句子的主语是动作的执行者时，谓语的形式是主动语态当句子的主语是动作的承受者时，谓语要用被动语态被动语态由助动词be+过去分词构成，时态通过be表现出来英语动词有两种语态： 主动语态 (the Active Voice) 被动语态(the Passive Voice)A. 主动语态表示主语是动作的执行者We planted the trees.B. 被动语态表示主语是动作的承受者The trees were planted by us.何时使用被动语态呢？ 一、行为主体不明确，不必说出或者无法说出动作的执行者时例如： Football is played all over the world． 二、不易找到或根本就不可能找到动作的执行者时。
例如： My bike was stolen．我的自行车被盗了三、汉语中含有“据说”、“据悉”、“有人说”、“大家说”等时例如： It is said that one day he climbed to the top of a house and ……It was reported that her mother died of SARS.众所周知… … It is well known that …据推测说… … It is supposed that …四、汉语中含有“被”、“由”等词时例如： Tina is asked to come by Paul．Tina是被Paul叫来的五、某些句子习惯上用被动语态例如： He was born in October，1989．被动语态的构成：助动词be+及物动词的过去分词 (be+V.P.P) 2)被动语态的结构：被动语态be+done及物动词的过去分词，助动词be有人称、数的变化如：The desk is made of wood. The desks are made of wood.He is asked a question by the teacher.I was given a nice present by my friend yesterday.在改写中应注意：1.把原来的宾语提到前面作被动语态的主语;2.把动词变成“be + 过去分词”;3.主动语态中的主语变为介词by的宾语。
主变被解题步骤:1. 找宾语 ----即动作的承受者2. 判断宾语的单复数 ----即be动词的单复数.3. 判断动词的时态 ----即be动词的时态.4. 修改谓语的时态 ----即原句动词改为过去分词5. 修改原句的主语 ----即by+ 主语.。