Unit 6 Electricity everywhere（Cross-curricular connection）课件-2024-2025学年沪教版英语七年级下册

Unit 6 Electricity everywhere Lesson 7 Cross-curricular connection Learning objectives 目录页标题 通过本课时学习，学生能够： 1. 了解不可再生能源的缺点，尤其是对环境产生的危害。 2. 了解可再生能源的种类和不同国家使用可再生能源的情况。 3. 运用所学知识谈论可再生能源相关内容。 4. 认识到可再生能源的重要性，增强环保意识。 重点 Review Do you remember what people use to produce electricity? Hydropower Wind power Solar power The fossil fuel Think and choose Which is different from the others? Hydropower Wind power Solar power The fossil fuel Think and talk Why is the fossil fuel different? Hydropower Wind power Solar power The fossil fuel renewable energy unrenewable energy coal oil gas Think and answer What are the advantages and disadvantages of using fossil fuels? Burning fossil fuels releases harmful gases, causing air pollution and health problems. They produce CO₂, a greenhouse gas that leads to global warming. Fossil fuels can provide energy whenever we need it. Unlike solar or wind power, they don’t depend on the weather. Fossil fuels release a lot of energy when they are burned, which makes them very efficient for generating electricity. Fossil fuels take millions of years to form, so they will eventually run out. How to solve these problems? Use renewable energy to replace fossil fuels! Read and match Read the text and then match the paragraphs (A–E) with the pictures (1–5). E D C B A Read and complete   Renewable energy The country that uses it A     B     C     D     E     hydropower wind energy solar power geothermal energy biofuel China Britain Australia Iceland The USA Read and answer What is the biggest dam in the world? Around 29 hours. The Three Gorges Dam. How long can one turn of the wind turbine blades power a house? Read and answer How much electricity do the solar panels on the sheep farm in Australia produce each year? Why is geothermal energy cheap in Iceland? Because Iceland has many volcanoes that produce hot water and air, making geothermal energy easy to use. They produce about 200 million hours of electricity a year. Watch and answer How does the Three Gorges Dam help produce electricity? Watch and answer How does the Three Gorges Dam help produce electricity? • The dam holds back a lot of water. When the water is released, it flows down with force. • The flowing water pushes turbines, making them spin. • The spinning turbines turn generators to produce electricity. • The electricity travels through wires to cities. Brainstorming What are the advantages of using renewable energy? First, it is sustainable and will never run out, unlike coal or oil. Second, it is good for the environment because it doesn’t pollute the air like fossil fuels. Finally, using renewable energy can save money in the long run because it becomes cheaper to use after the equipment is set up. Third, it improves public health by reducing harmful air pollution, leading to healthier lives. Talk in pairs What kinds of renewable energy are used in your area? How do people use them? What are the advantages of them？ What kinds of renewable energy are used in your area? How do people use them in your area？ ... ... What are the advantages of using them? Summary talk about renewable energy with classmates. realise the advantages of using renewable energy. know more facts about renewable energy. 2 3 1 After learning this lesson, I can Read and fill Homework 1. Find out more facts about renewable energy and share them with your classmates. 2. Write a short passage about renewable energy. Bye-bye! Lavf58.46.101 $$