03 Unit 4 Protecting the Environment Reading APPT --英语沪外版选择性必修第三册

Unit 4 Protecting the Environment Reading A 1.通过略读、跳读等阅读策略，了解二氧化碳的大致信息； 2.分析全文和部分段落，理解因果链语篇模式； 3.反思人类和温室效应的关系，并发表自己的观点。 学习目标 Learning Objectives： Q1: What is the possible relationship between the two polar bears? Q2: What might have separated them from each other ? They might have been separated from by the melting ice. Pre-reading Parent and kid (Mother and kid). Pre-reading Q1: What can you see in the picture? Can you describe the picture briefly? Q2: Can you predict who is the ‘villain’ in the atmosphere? Q3:What do you expect to read in the passage from the title ? The sea level is rising and it is splashing against the windows along the Carbon dioxide. The harmful effects of carbon dioxide and the causes of these consequences. fall noisily onto a surface splashing villain a person or thing that is morally bad or responsible for causing trouble or harm skyscrapers. While-reading 1 The villain in the atmosphere is carbon dioxide. ... 4 But here is what this apparently harmless and certainly essential gas is doing to us: ... 7 And all because of carbon dioxide. But how does that come about? What is the connection? Q1: There are some short paragraphs (e.g.Para 1, 4 and 7) in the text. What functions do they serve? Skim the passage and find out the functions of Para.1, 4 and 7 and the organization of the passage. While-reading Para.7 tells the reader that the next part is about the causes of these consequences. Para.1 is the thesis of the text. Para.4 tells the reader that what follows is the harmful effect of carbon dioxide. Making the structure of the text clear and easy to follow. Q2: What is the organization of the passage? carbon dioxide Para 1 the effects Para 4 the causes Para 7 2022-4-11 Read Para. 2-3 and learn the function of small quantity of carbon dioxide, and then complete the mind map. 2 3 Q1: Is the small quantity of carbon dioxide a villain? tissue Q2: What functions does it serve? （人、动植物细胞的）组织 While-reading It d