Unit 10 Connections Section Ⅲ　Grammar —— 过去时中的被动语态 课件（共27张）+学案（含答案）

Section Ⅲ　Grammar ——— 过去时中的被动语态 ①The concept was first talked about as long ago as the 1920s. ②In the 1950s， an attempt was made by two scientists to prove the theory mathematically ... ③Once the parcel had been received by this person， he/she would send the parcel onto a contact of theirs until the parcel could be personally delivered to the correct person. ④Its name was used as the title of a play and then a film. ⑤Soon the game was being played in universities across the United States. 【我的发现】 1.一般过去时的被动语态由“　　　　　　�———�构成。 2.过去完成时的被动语态由“　　　　　�———�构成。 3.过去进行时的被动语态由“　　　　　�———�构成。 一、概述 　　语态是用来说明主语和谓语动词所表示的动作之间关系的一种动词形式，英语谓语动词有主动和被动两种语态。主动语态表示主语是谓语动词所表示的动作的执行者或行为的主体，被动语态表示主语是谓语动词所表示的动作的承受者或动作所指向的对象。 二、构成 　　过去时中的被动语态的形式变化列表 　 形式 时态 　 肯定句 否定句 疑问句 一般过去时 主语＋was/were＋动词-ed形式 主语＋was/were＋not＋动词-ed形式 Was/Were＋主语＋动词-ed形式 过去进行时 was/were being＋动词-ed形式 was/were not being＋动词-ed形式 Was/Were＋主语＋being＋动词-ed形式 过去完成时 主语＋had been＋动词-ed形式 主语＋had not been＋动词-ed形式 Had＋主语＋been＋动词-ed形式 【即时演练1】　将下列句子改为被动语态 ①I was practicing my oral English at 8：00 yesterday evening. →My oral English 　　　　　　　　　　at 8：00 yesterday evening. ②She had given us clear directions and we were able to find it easily. →We 　　　　　　　　　　　　　　　　　　　　　　　　by her and we were able to find it easily. ③The dog bit her on the leg when she was catching it on the road. →She 　　　　　　　　　　on the leg when she was catching it on the road. ④Somebody had broken into the room before we came. →The room 　　　　　　　　　　　　before we came. ⑤She was writing a letter last night.But I don’t know whether she has finished it or not. →A letter 　　　　　　　　　by her last night.But I don’t know whether she has finished it or not. ⑥Bob called to tell his mother that he couldn’t enter the house， for he had left his key at school. →Bob called to tell his mother that he couldn’t enter the house， for 　　　　　　　　　　　　at school. 三、用法 1.一般过去时的被动语态 （1）表示过去某一时间的被动动作或过去经常性、习惯性的被动动作，无需说明动作执行者时。 Paper was first invented in China. 纸最初是在中国被发明的。 （2）需要突出或强调过去动作的承受者；或者既关心动作的承受者，又关心动作的执行者。 The song was composed by a student. 这首歌是一名学生写的。 （3）当动作的执行者不是人而是无生命的事物时。 The roof was covered with a layer of snow. 屋顶被一层雪覆盖着。 2.过去进行时的被动语态 过去进行时的被动语态表示过去的某个时刻正在进行或者发生的被动动作。 The feast was being prepared when it began to snow outside. 宴会正在准备之中，这时外边下起了雪。 He said many activities were being planned for the celebration of the company’s 20th anniversary ... ...