Unit 6 Earth First Using language Listening 课件-2023-2024学年高一英语外研版（2019）必修第二册

Unit 6 Earth first Using language —Listening 1.Select the topics the lecture covers after listening; 2.Note down the causes, effect and control measures in the past and present by listening; 3.Talk about another environmental problem in a similar conversation. What is the problem in the picture? smog Lead-in n.雾 Smog comes from the words “smoke” and “fog”, and it is used to describe the air pollution in cities caused mainly by traffic and factories. Smog can be dangerous because it causes severe breathing problems and infections. n.烟雾，雾霾 adj.(问题、伤势、传染病)很严重的 n.感染，传染病 Did you know? Pre-listening Let’s watch a video and get some more information about smog. 1. What the word “smog” means. 2. When the word “smog” appeared. 3. What caused smog in the past. 4. What causes smog now. 5. The effects of smog on the environment. 6. How governments try to reduce smog. 7. What will happen if we don’t reduce smog. Task 1: Listen and choose the topics that are covered. √ √ √ √ √ While-listening 1. What the word “smog” means. 2. When the word “smog” appeared. 3. What caused smog in the past. 4. What causes smog now. 5. The effects of smog on the environment. 6. How governments try to reduce smog. 7. What will happen if we don’t reduce smog. smoke and fog 1900s coal chemicals take measures Task 2: Listen again and answer the questions. √ √ √ √ √ Task 3: Listen again and complete the slides. Smog in the past Term created in: 1._______ Big problem in London: 2.________________ in December 1952 Causes of the problem: burning too much coal and 3.___________ 1900s The Great Smog no wind Check your answers. Smog in the present Causes of the problem: 4.___________________________ and factories Measures: rules about using 5.__________ in factories and 6.____________________________ in the city centre. chemicals coming from traffic chemicals requir