(
课件网) Unit 4 The Earth 主题范畴： 人与自然 主题群： 自然生态；环境保护 子主题： 热爱与敬畏自然，与自然和谐共生 Key question Why should we learn about the Earth Guessing game What am I I’m all around you, but you cannot see, I give you life, but you can’t catch me. I fill balloons and make kites fly high, What am I, floating in the sky Air Air surrounds the Earth. All living things on Earth need air to survive. What is air like Cross-curricular connection | Earth science Before-learning v. 包围；围绕；环绕 What do you know about ... What does air do for us blow up balloons give us life help us float How can we ‘see’ the wind the fan moving the paper the weathercock moves on the roof n. 风向标；风信鸡 What do you know about ... Let’s read! While-learning Read the poem about air and the text about wind. Then complete the sentences below. 清洁能源(clean energy)包括三方面。一是零碳排放、无物质消耗的可再生能源，如水电、风电、光伏、潮汐能、地热能等；二是零碳排放但有物质消耗和废料处理的新型能源，如核能；三是对传统化石能源的清洁使用，如经过净化处理的低碳排放的清洁煤、清洁油、天然气等。发展清洁能源是经济社会绿色低碳转型的客观要求。 背景链接 (1) Air has no _____ and no _____. (2) A kite or a plane _____ to stay in the sky. (3) “We need air to survive” means “air _____ us _____”. (4) The wind moves clouds across the sky, and sometimes these clouds bring in _____. (5) A(n) _____ can tell us where the wind is blowing from. (6) _____ produce electricity for us. smell taste rides keeps alive rain weathercock Windmills Let’s complete the sentences! Take action! Air is important for us! However, look around our city. What happens to the air Factories and cars are making a lot of harmful gases. There is less and less clean air for us to breathe. What should we do to protect the air Post-learning Stop factories from giving out harmful gases. Drive less or encourage people to drive EVs more often. Plant more trees (Trees are the major fighters against air pollution.) Take action! Thanks to the tree planters’ great effort, Saihanba has once again turned green. Are there any other places that faced, or still face, serious problems Let’s do some research and make a fact file. Making a fact file about Earth protection Project Step 1 Work in groups and choose one place that interests you. Search online for basic information about it. Then discuss what you want to include in your fact file. You may refer to the following questions. Why do you care about this place What kinds of plants and animals are there What serious problems did/does it face What are the causes of these problems Step 2 Find out how people solved / are solving these problems. Search online for different solutions. You may use the quesitons below to help you. What have people done / are people doing to solve the problems What are some important achievements Can you come up with different ways to solve the problems Step 3 Organize the f ... ...
