Unit 1 Grammar and usage 课件-2021-2022学年牛津译林版（2020）高中英语必修第三册

Unit 1Nature in the balance Grammar and usage Lead in Have you ever watched any TV programmes about environmental protection? What was it about? And what do you think of it? Air pollution? Global warming? Extinction of rare animals? … Video: environmental protection documentary 2 Lead in What is it about? And what do you think of it? Video: environmental protection documentary 3 Exploring the rules Jack and Henry are talking about a documentary on environmental protection. Pay attention to the underlined sentences and write down the words that have been left out in the brackets below. A How did Jack feel when he watched the documentary? What do the leading experts suggest doing to solve the environmental problems? Exploring the rules Jack and Henry are talking about a documentary on environmental protection. Pay attention to the underlined sentences and write down the words that have been left out in the brackets below. A Jack: Hi, Henry! Did you watch the documentary about environmen