(
课件网) Period 4 Talk about air pollution 选择性必修三 人教版（2019） Unit 3 Environmental protection Lead-in Look at the following picture and read the quote. Earth provides enough to satisfy every man’s needs, but not every man’s greed. Lead-in Look at the following pictures and discuss the questions. What can you get from the pictures presented about the Beijing Winter Olympics Lead-in Look at the following pictures and discuss the questions. What is special about the cauldron(圣火台) of the Beijing Winter Olympics The concept of low-carbon emissions and being environmentally friendly. Lead-in Look at the following pictures and name the vehicles. A hydrogen fuel cell bus 氢燃料电池巴士 hydrogen-powered vehicles Task 1 Look at the following pictures and find out what they are. chimney coal = smog smoke + fog New energy-efficient vehicles Task 1 Discuss the questions in groups according to the pictures. 1. What information can you get from these pictures I can get information about where the pictures were taken, for example, the bridge is in London, and the chimneys are in a power station. Both places look very polluted. I can see that the car is powered by electricity as it is plugged in. I can see some coal being burned. These pictures tell me that the interview is probably about energy and pollution. Task 1 Discuss the questions in groups according to the pictures. 2. How do these situations influence your lfe These situations influence my life not only by providing electricity for me, and transporting me, but also by polluting the air I breathe. Task 2 Listen to an interview with an air pollution expert and decide whether the statements are true (T) or false (F). 1. The expression “smog” originated in Britain and means a combination of “smoke" and “fog”. 2. Smog became a severe problem in Britain because people at that time burnt lots of fossil fuels. 3. The worst smog in British history happened in London in 1942. 4. The Great Smog of London claimed 5,000 lives. 5. Later, the UK government ordered people not to burn wood in their homes. T T F F F Learning Listen to the conversation and complete the chart below. summarize the information help you review the key points of a speaker’s message function take notes be concise use your own words Listen for the “cue” Hostess: Good morning, listeners. Air pollution is a serious problem, with urban populations particularly at risk from smog. Ben Drake is an expert on air pollution, and he is joining us today to talk about this issue. Ben, where does the word “smog" come from Ben Drake: “Smog” comes from a combination of the words “smoke” and “fog”. It originated in Britain , when smog was a severe problem. Hostess:Why was it so bad then Ben Drake:Well, Britain was one of and factories and homes used lots of coal. When burnt, the coal produced harmful emissions which created lots of smog. In London, they also called the smog a ... ...
