(
课件网) Unit 6 Electricity everywhere 主题范畴： 人与自然；人与社会 主题群： 环境保护；科学与技术 子主题： 环境污染及原因，环保意识和行为；科学技术与工程，人类发明与创造 Key question What role does electricity play in our daily lives understand why electricity is important. explain different ways of producing electricity. observe safety rules for using electricity. talk about how to save electricity. Unit objectives 单元目标 I can: New words climate n. 气候 amount n. 数量；数额 power v. 驱动；推动（机器或车辆） television set n. 电视机 landmark n. 地标 care about 关注；担忧 climate change 气候变化 join in 参加；加入 Lead in Which picture is more beautiful Have you ever heard of Earth Hour There are many ways to save electricity. Once a year, people take part in Earth Hour and turn off their lights for one hour. Let’s learn more about this event. Focusing on culture Earth Hour What is Earth Hour On the last Saturday night of March every year, people around the world turn their lights off for one hour. They do this because they care about climate change. They are trying to show that small changes can make a great difference to our planet. How did it start The World Wildlife Fund (WWF) started Earth Hour in 2007, in Sydney, Australia. More than 2.2 million homes and businesses joined in. Even the lights at the Sydney Opera House were out for an hour. This saved a lot of electricity. The same amount of electricity could power thousands of computers or television sets for an hour. When the lights were out, the stars were clearer in the sky. People in China liked this idea too. They started to take part in the event in 2008. Every year, many landmark buildings in Chinese cities turn off their lights for Earth Hour. What can you do You can take part in Earth Hour next March. Find out the date and time of the event on the Earth Hour website. When the time comes, turn off your lights and enjoy your special hour in the dark. It will be even more fun if you ask your friends, family and classmates to join as well. Skimming 1. What is Earth Hour 2. When and where did it start 1. On the last Saturday night of March every year, people around the world turn their lights off for one hour. 2. In 2007, in Sydney, Australia. Scanning Why do people take part in Earth Hour They do this to show they care about climate change. They are trying to show that small changes can make a great difference to our planet. Scanning What were the benefits of the first Earth Hour It save a lot of electricity. The same amount of electricity could power thousands of computers or television sets for an hour. Discuss the questions below. (1) Do you think Earth Hour is useful Why or why not (2) Have you ever taken part in Earth Hour events before If yes, describe what you did. If not, would you like to take part next March What do you think you will do (1) Do you think Earth Hour is useful Why or why not I think Earth Hour is usefu ... ...
