Unit 6 Electricity everywhere：Section 3课件 - 2024-2025学年沪教版（2024）英语七年级下册

Before-reading Answer the following questions. 1. What problems do petrol cars cause? 2. What kinds of renewable energy are used in your city? 3. How can people adjust the amount of electricity produced?   Pollution and global warming. Solar power and wind power. By controlling the flow of water. Renewable energy A The Three Gorges Dam is the biggest dam in the world. It took more than 10 years to build. China is the country that makes the most electricity from hydropower.   B Some of the world’s biggest wind turbines are off the coast of Britain. Their blades are bigger than the London Eye! One turn powers a house for around 29 hours!   C One of the biggest solar farms in Australia is on a sheep farm. Thousands of solar panels make about 200 million hours of electricity a year. They also protect the sheep from sun and rain!   D Iceland has a lot of volcanoes which produce hot water and air. So about 30% of the country’s electricity comes from geothermal energy. It’s very cheap!   E The USA grows the most biofuels, usually corn. Most cars there can use 10% vegetable fuel mixed with oil. Many cars can just use biofuel. Language notes 1. renewable /rI9nju:Rbl/ adj. 可再生的 Solar power is a kind of renewable energy. 2. the Three Gorges Dam 三峡大坝 The Three Gorges Dam has brought many benefits, such as flood control and power generation. 3. hydropower /9haIdrRWpaWR(r)/ n. 水力发电 Many countries increasingly count on hydropower to meet their energy needs. 4. the London Eye 伦敦眼 The London Eye is a famous tourist attraction in London. 5. protect /prR9tekt/ v. 保护 Sunglasses can protect your eyes from the sun. 6. volcano /vBl9keInRW/ n. 火山 Volcanoes can cause great destruction. 7. fuel /9fju:Rl/ n. 燃料 Petrol is a common fuel. 8. mix /mIks/ v. 混合 We can make dough by mixing flour, yeast and water. While-reading Read the text and then match the paragraphs (A–E) with the pictures (1–5). E D C B A While-reading Read the text and fill in the blanks.   Renewable energy The country that uses it More information A       B       C       D       E       hydropower wind energy solar power geothermal energy biofuel China Britain Australia Iceland The USA Look at the picture about producing electricity with water and then answer the questions. Post-reading Physical science Post-reading: 1. What’s in the picture? What’s it in Chinese? 2. When does it produce electricity? 3. How can people adjust the speed of producing electricity? A turbine. 涡轮机。 When it is turned by water. By changing the directions of the blades on the turbine. Conduct an experiment with solar panels. Post-reading: Materials Solar panels (太阳能发光板), a light bulb, some wires 实验名称（name）   实验目的（purpose）   实验原理（theory）   实验结论（result）   实验意义（benefit）   实验报告 Post-reading Introduce a type of renewable energy. Discuss the advantages of the type of renewable energy you want to introduce. Make a poster about this type of renewable energy. Self-assessment 评价内容 评分（1-5） 1. 我能理解使用可再生能源的必要性。 1 2 3 4 5 2. 我能初步了解世界各国使用可再生能源的情况，并认识到这些国家使用可再生能源的特殊优势。 1 2 3 4 5 3. 我能借助跨学科知识用英语表达水力发电的原理。 1 2 3 4 5 4. 我能与同伴合作完成物理实验并用英语书写实验报告。 1 2 3 4 5 Homework 基础作业 总结每个可再生能源的优势。 拓展作业 Write an article calling for people to switch to renewable energy. Explain why it is important and why people should use it. 为自己的城市写一份使用可再生能源发电的倡议书。内容包括： 使用可再生能源发电的必要性。 可再生能源发电的方式及其优势。 发出倡议。 THANK YOU $$