Unit+1+Nature+in+the+balance.+Grammar+and+usage+课件-2022-2023学年高中英语牛津译林版(2020)必修第三册.pptx

牛津译林版高中英语必修三课件Unit 1 Nature in the balance  Grammar and usage  Ellipsis [??l?ps?s] ◆? 内容分析 本板块围绕单元话题，以“环保纪录片和环保志愿者活动”创设情境，在谈论关于环境保护的纪录片的对话中观察、探究省略这一语法现象，并自主归纳其核心语法规则；接着通过单句和语篇两个层面的练习巩固所学、内化新知；最后正确运用省略这一语法规则创作几条环保宣传语。 ◆? 教学目标 By the end of this section, we will be able to: 1. learn about the functions of ellipsis; 2. summarize the general rules of ellipsis; 3. apply the rules of ellipsis in the new context. A. Exploring the rules 1. Answer the following questions. Have you ever watched any TV programmes about environmental protection? What was it about? Yes. It was about air pollution./It was about the extinction of rare animals./It was about global warming. 2. Jack and Henry are talking about a documentary on environmental protection. Read the conversation of part A and answer the following questions. Page 6(1) What is the documentary about? It’s about environmental protection. / It’s about some of the worst environmental problems we are facing today. (2) How did Jack feel when watching the documentary? (3) What do the leading experts suggest doing to solve the environmental problems? He felt worried when watching the documentary. Some call for the application of modern technology, and others a change of lifestyle. 3. Complete the sentences of part A below the conversation on page 6. Pay attention to the underlined sentences and write down the words that have been left out in the brackets below. The first one has been done for you. Jack: Hi, Henry! Did you watch the documentary about environmental protection on TV yesterday? Henry: (1) No, I didn’t. Jack: What a pity! I highly recommend it. (2) You can watch it online if you want to. It’s about some of the worst environmental problems we’re facing today. Global warming, for example, is a major problem caused by greenhouse gases. It may lead to extreme weather events: droughts, heatwaves and so on. (3) ?I?felt worried when watching the documentary