北師大版高中英語選修八unit22environmentalprotectionthesecondperiod教案(完整版)
【正文】 s around your house will absorb CO2, and slash your summer airconditioning bills. Reduce! Reuse! Recycle! Producing new paper, glass, and metal products from recycled materials saves 70 to 90 percent of the energy and pollution, including CO2 that would result if the product came from virgin materials. Recycling a stack of newspapers only 4 feet high will save a goodsized tree. Please...buy recycled products! Mount a local campaign against global warming. Educate your munity about how it can cut global warming pollution. Support measures at the national, state, and local level that: ? Make automobiles go further on a gallon of gas。 ? Accelerate the use of clean, renewable energy sources, such as solar and wind。F. If we continue to produce carbon dioxide and other gases in such quantities, we are condemning life on Earth and should expect severe consequences. Skimming Show the following form on the PowerPoint and ask them to work in groups and plete the form. term definition causes consequences how to solve the problem Global warming Five minutes later, show the suggested answers on the PowerPoint. term definition causes consequences how to solve the problem Global warming refers to an average increase in the Earth’s temperature. When greenhouse gases in the atmosphere increase, more heat is trapped.(the greenhouse effect) The Earth’s temperature rises. Government’s action and each person should play their part (small changes made by everyone worldwide). Ask students to skim the text and then finish Ex3 on Page 7. Students may discuss the questions in groups. T: Look through the questions in Ex 3 on Page 7 first. Then skim the text to find the answers. Then check the answers with the whole class. Suggested answers: 1. Global warming is an average increase in the Earth’s temperature. 2. Increased industry, agriculture, the cutting down of forests, the increase in transport and the burning of fuels are causing global warming. 3. By 1176。 ? Increase energy efficiency and conservation。 ways 過程與方式 Step I Leading in In this procedure students will talk about the causes and consequences of global warming. Begin the lesson by asking students to discuss the questions in before you start T: Yesterday we learned from the passage in Culture Corner that gases from burning coal and oil are the major causes of global warming. Did you make your survey on how students e to school? S1: I asked 40 students. Ten in the forty e to school by bus. Twentyone ride bicycles. Eight of the forty take a car and only one walks to school. ... T: From the survey you made we can see most of students in our school take a green way to school. I’m glad we are not having so many cars. Be cause gases pumped into the atmosphere from cars will speed up global warming. Have you noticed that in 2021 we had a very warm winter? Experts say global warming has changed the climate in China. In this class we are going to learn more about g
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