Unit 3 Environmental Protection Using language Talk about air pollution 课件-2024-2025学年高中英语人教版选择性必修第三册

Using language Talk about air pollution Unit 3 ENVIRONMENTAL PROTECTION To learn to talk about air pollution To listen to an interview and determine whether statements are true or false To listen for detailed information To discuss the air pollution using target expressions Lead-in Review the passage and answer the questions. 1. What have you learnt from the passage? 2. What causes globe warming? We learnt about global warming. Extra greenhouse gases. Lead-in Review the passage and answer the questions. 3.Where do greenhouse gases come from? Many greenhouse gases occur naturally in the atmosphere, while others are man-made. Most of the greenhouse gases of human-caused come primarily from fossil fuels — coal, natural gas, and petroleum (石油，原油) — for energy use. The large amount of extra man-made greenhouse gases is directly related to the problem of global warming. Besides that, the greenhouse gases have been influencing our daily life. Lead-in Watch a video about man-made greenhouse gases Lead-in Discuss the following questions after watching the video 1. What information can you get from the video? 2. How do these situations influence your life? From the video I can see chimneys are in a power station and the sky is grey. Both places look very polluted. I can see some coal being burned. These situations influence my life not only by providing electricity for me, and transporting me, but also by polluting the air I breathe. From the video I know the air pollution can cause serious health problem. Pre-listening Before you listen, look at the pictures below and discuss the questions The bridge is in London. The chimneys are in a power station. the burning coal They all look very polluted. Pre-listening Before you listen, look at the pictures below and discuss the questions What is it? And what do you think about it? NEVs (new energy vehicles) New energy vehicles can be powered by electricity. They are the breakthrough point for China to develop new energy automobiles. Pre-listening Before you listen, look at the pictures below and discuss the questions Judging from pictures and questions above, Can you guess what the interview will talk about? These pictures tell me that the interview is probably about energy and pollution. Skim Activity 2. What do you think the air pollution expert might talk about? Some key words: smog, combination, fossil fuels, wood etc. While-listening Listen to the 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 F T F T F T F T F √ √ √ √ √ 1952 4000 coal While-listening Listen again and take notes on what the expert said. Then summarise the information you got from the interview. While-listening Listen again and take notes on what the expert said. Then summarise the information you got from the interview. Ben Drake, an expert on air pollution, is being interviewed on the radio. He said that smog was a severe problem _________________ century in Britain. At that time, Britain was experiencing a boom in ________. Factories and homes _______________, which created smog. He also mentioned the heavy smog in London ____________ ____________________________________________ in 1952. Later the UK government restricted ____________ in homes and forced factories to __________________________. As smog is harmful to everyone, the expert advised us to ____________________________ ___________, use ___________________________, and further develop _________________. in the early 20th industry used lots of coal was particularly bad and caused over 4,000 deaths burning coal move away from city centres of energy new energy-efficient vehicles green technology replace coal with cleaner forms Post-listening Discuss the questions. The expressions in the box may help you. Referring to common knowledge Everyone knows that … Most people think that ... As is known to all, ... There is no doubt that ... We all know that… It is obvious that … Vehicle restriction Tree planting Post-listening Discuss the questions. The expressions in the box may help you. Have you experienced heavy smog where you live? Have you seen photos of big cities under clouds of smog? What is it like? I have occasionally experienced heavy smog where I live. I have also seen pictures of heavy smog over cities. It is very thick and hard to see through. There is no doubt that it is not a good thing. Post-listening Discuss the questions. The expressions in the box may help you. 2. What do you think are the major causes of smog in China? Industry and vehicles are the major causes of smog in China. 3. What measures have the government and citizens taken to help address the problem? Most people think that pollution at a certain level is a necessary result of growth, but the government is taking measures to keep it in check by developing green energy solutions and controlling factory and vehicle emissions. 17 x264 0.128.2216+688+32 a17ff54 tMod [8-bit@4:2:0 X86] $$