Unit 2 Wildlife Protection Section B Discovering Useful Structures 教学设计 Teaching Objects: (1) Knowledge Objects: a) Students will learn some words and phrases like reduce、due、in order to…… b) Students will master the the structure of the present continuous passive voice and its function through self-study and practice (2)Ability Objective: Students can use the structure of the present continuous passive voice to express their ideas. (3)Emotional Objectives: Students can foster the interest and desire of learning English grammar. Key and difficult points: Key point: Help students identify the structure of the present continuous passive voice. Difficult points: How to use the structure of the present continuous passive voice in real situation Major steps: Step 1 Presentation （1）Observe the following sentences and figure out the functions of the present continuous passive voice. 1.My sister is now being interviewed. Function: 2.Many interesting experiments are being carried out these days. Function: 3.He is always being praised by the leader. Function: 4.A celebration is being held this weekend for his success. Function: 现在进行时的被动语态 一、基本结构： 1．现在进行时态的被动语态的肯定式为： am/is/are + being + done。 如：The question is being discussed at the meeting now. 这个问题现在正在会上被讨论。 Another bridge is being built over the Changjiang River at present. 目前长江上正在建造另一座大桥。 2．现在进行时态的被动语态的否定式为：am/is/are + not + being + done。 如：The baby isn’t being taken good care of. 这婴儿没在得到很好的照顾。 The animals are not being set free at present. 目前这些动物还不能被放出。 3．现在进行时态的被动语态的一般疑问句需将am/is/are 提到主语的前面。 --Is a new library being put up in their school now？ --Yes, it is. 甲：他们学校现在正在建一座新图书馆吗。 乙：是，正在建一座新图书馆 --Are a number of Dongfeng trucks being shipped abroad --No, they aren’t. 甲：一批东风卡车正被运往国外吗？ 乙：不，没有。 4．现在进行时态的被动语态的特殊疑问句为：疑问词 + am/is/are + (主语) + being + done。 如：What is being done to the machine 现在对这台机器要采取什么措施？ How many houses are being built in the village 村里正在建造多少房屋？ When is the sports meeting being held in our school 我校将在什么时候举行运动会？ 二、用法： 1．现在进行时态的被动语态的同它的主动语态一样，表示现在正在进行的被动动作。 He is being interviewed by our headmaster now. 他正在接受我们校长的采访。 This film is being shown now. 这部电影正在被放映。 2．现在进行时态的被动语态的同它的主动语态一样，表示现阶段正在进行的被动动作。 The disease is being studied by scientists. 科学家们正在研究这种疾病。 These animals are being hunted at such a speed that they will disappear soon. 以如此速度捕杀动物，他们很快就会消失。 现在进行时被动语态五个提醒 一、不可遗漏being 现在进行时的被动语态表示说话时主语正在承受谓语动词的动作，谓语动词的形式为“is/are/am＋being＋过去分词”。如果把being漏掉，就成为一般现在时被动语态或系表结构。试比较下列句子： Look！ The children ar ... ...
