Unit 2 Wildlife Protection Discovering Useful Structures 课件-2023-2024学年高一英语人教版（2019）必修第二册

Unit 2 Discovering Useful Structures 现在进行时的被动语态 Learning Objectives 1.To learn about the present continuous passive voice; 2.To learn to use present continuous passive voice to describe the situation of the endangered animals; 3. To learn to use present continuous passive voice to describe the ongoing events. Let’s watch a short video and answer: What happened to the animals? Let's enjoy a song！ Everybody everybody wants to love Everybody everybody wants to be loved 每个人都想要去爱 每个人亦想被爱 被动语态的构成 1. The book was written by Lu Xun. 2. The classrooms are cleaned by students every day. 3. This maths problem can be worked out by little Tom. 被动语态的构成：主语+ be(am/is/was/are/were) +done Everybody everybody wants to be loved. 被动语态 be＋done 根据不同的时态有不同的形式！ 动词的过去分词，表示动作！ 那么，现在进行时的被动语态是什么结构呢？ Everybody, everybody wants to love. Everybody, everybody wants to be loved. 语态的种类 英语动词有两种语态： 主动语态 doing the active voice 被动语态 done the passive voice Let’s do a math exercise! 现在进行时的被动语态 现在进行时 = + 被动语态 am/is/are + doing = + be done = am/is/are+being+done 主动语态 表示主语是动作的发出者 We plant the trees. 动作的发出者 表动作 被动语态 表示主语是动作的承受者 The trees are planted by us. 动作的承受者 表动作 定义：表示“某人/事此时此刻正在被…”，主语是动作的承受者, 表示说话时或现阶段某个被动的动作正在进行。 现在进行时的被动语态 present continuous passive voice: be being done The workers are building the house. the workers. What are the workers doing ？ The house is being built by 主语 谓语 宾语 The workers are building the house 宾语 主语 谓语变被动 （时态不变） be+being+done+by Warming up Observe the following sentences and pay attention to the underlined parts. A wild horse is being hunted after by a tiger. A wild horse is being hunted after by a tiger. A tiger is hunting after a wild horse. Someone is hunting African elephant. someone . African elephant is being hunted by 主语 谓语 宾语 Someone is hunting African elephant 宾语 主语 谓语变被动 （时态不变） be+being+done+by Tom’s car is being repaired (by a worker) now. A worker is repairing Tom’s car now. Th