Unit 3 The environment 第1课时 Reading 课件 2023-2024学年初中英语牛津深圳 版九年级下册

Unit 3 The environment Period 1 Reading 牛津深圳版 九年级下册 Content Learning objectives 01 Lead-in 02 Pre-reading 03 While-reading 04 Post-reading 05 Summary 06 Practice 07 Homework 06 Learning objects 1.通过重点词汇、短语和句型的学习，掌握一些单词和短语的基本用法。（学习理解） 2.通过运用扫读、略读、精读等阅读策略阅读文章，初步理解文章的主要内容，理解文章的细节。（应用实践） 3. 能够通过学习文章，引起学生对环境问题的关注，强化学生的坏境保护意识。（创新迁移） Lead in Watch the video and know about the greenhouse effect. the greenhouse effect: 温室效应 Pre-reading What can you see in this picture? atmosphere [ˈætməsfɪə(r)] n. 大气层 heat[hiːt]: 热量 What can you learn from the picture? Pre-reading A 1 There is an atmosphere 2 It controls 3 However, we are polluting 4 The gases cause the atmosphere 5 The Earth is getting 6 We call this B ______ a the greenhouse effect. ______ b the Earth with harmful gases. ______ c warmer and warmer ______ d to keep in too much heat from the Sun. ______ e around the Earth. ______ f the Earth’s temperature. A1 What do you know about the greenhouse effect? Match the first half of the sentences in column A with the second half in column B. Write the correct letters in the blanks. 1 4 5 3 6 2 temperature [ˈtemprətʃə(r)]n. 温度 harmful gases：有害气体 cause: v.导致 There is an atmosphere around the Earth. It controls the Earth’s temperature. However, we are polluting the Earth with harmful gases. The gases cause the atmosphere to keep in too much heat from the Sun. The Earth is getting warmer and warmer. We call this the greenhouse effect. Let’s read! Pre-reading A2 What is the result of the greenhouse effect? In groups, discuss this with your classmates. CO2 and other gases in the atmosphere trap heat, keeping the earth warm. Some sunlight that hits the earth is reflected. Some becomes heat. atmosphere Pre-reading Look at the pictures, the title, the introduction and the sub-headings of the article on page 35. Then answer the questions below. Pre-read