被动语态复习课件-人教版八年级英语下册.pptx

被动语态被动语态被动语态被动语态The Passive VoiceThe Passive Voice人教版 八年级英语一一.主动语态和被动语态主动语态和被动语态 英语动词有两种语态，即英语动词有两种语态，即主动语态主动语态（The Active Voice)和和被动语态被动语态(The Passive Voice).主动语态表示主语是动作的执行者，被动语主动语态表示主语是动作的执行者，被动语态表示主语是动作的承受者。如：态表示主语是动作的承受者。如：一一.主动语态和被动语态主动语态和被动语态Bell invented the telephone in 1876.The telephone was invented by Bell in 1876.(主动语态）主动语态）(被被动语态）动语态）The local newspaper interviewed him.He was interviewed by the local newspaper.(主动语态）主动语态）(被被动语态）动语态）二二.被动语态的构成被动语态的构成结构：结构：“助动词助动词be+及物动词的及物动词的过去分词过去分词”.助动词be有人称、数和时态的变化，其变化规则与be作为连系动词是完全一样。二二.被动语态的构成被动语态的构成I am asked a question by the teacher.He is asked a question by the teacher.be be 的的人称变化人称变化The desk is made of wood.The desks are made of wood.be be 的的数的变化数的变化二二.被动语态的构成被动语态的构成The tall building was built last year.The tall building is being built now.be be 的的时态变化时态变化三三.含有情态动词的被动语态含有情态动词的被动语态结构：结构：“情态动词情态动词+be+及物动词的及物动词的过去分词过去分词”.如：如：The trees may be planted in spring.The room must be kept clean.Teenagers should be allowed to choose their own clothes.四四.被动语态的用法被动语态的用法1.当我们不知道谁是动作的执行者时。当我们不知道谁是动作的执行者时。They found that the window was broken.2.当没有必要指出谁是动作的执行者时。当没有必要指出谁是动作的执行者时。English is spoken in Canada.四四.被动语态的用法被动语态的用法3.当只需要强调动作的承受者时。当只需要强调动作的承受者时。His little brother was taken good care of yesterday.五五.真题演练真题演练单项选择单项选择 1.Today,smart phones are really helpful.They_everywhere.A.use B.are using C.are used答案：答案：C.C.are used五五.真题演练真题演练单项选择单项选择 2.Hey,turn it off!Music _in the library.A.didnt allow B.isnt allowed C.wont allow答案：答案：B.B.isnt allowed 五五.真题演练真题演练单项选择单项选择 3.I heard that most of Jeffs best books_when he was sick and poor.A.had written B.were writing C.were written答案：答案：C.C.were written五五.真题演练真题演练单项选择单项选择 4.-Why didnt you come to Jims Christmas party?We had a good time.-I wanted to go,but I_.A.dont invite B.am not invited C.wasnt invited答案：答案：C.C.wasnt invited