新人教版英語高二上module6unit4globalwarmingword說課一(參考版)
2024-12-13 07:09本頁面
【正文】 ? ? how to do something about global warming。 ? ? some new words and phrases。 playing puter etc.) … 2). Where does all the energy e from?( Let Ss think about it and speak out by seeing some pictures) 3). What’s the difference between wind power and coal power? Wind will never run out while coal is a limited source. 4). Try to tell as many as possible Things that use energy Sources of energy Renewable/ Nonrenewable lights heating television cassette player puter fridge washing machine hairdryer … wind renewable cold Nonrenewable oil Nonrenewable nuclear Nonrenewable Sun (solar energy) renewable Water (hydroelectric power) renewable Plant waste renewable hot spring renewable 2. Let Ss talk something about thenegative effects of using energy and then know about the global warming. 3. Let Ss know more about the global warming by paring with the greenhouse. 1.) What is the greenhouse made and used for? A greenhouse is made of glass and is used for growing plants, especially during cold weather. 2.) How does it work? The air inside is warm because the glass traps the heat from the sun and keeps it from escaping. This makes the greenhouse heat up and so the plants can grow throughout the cold period. 3.) What are the “greenhouse gases”? In the atmosphere surrounding the earth there are gases, which are called “greenhouse gases”, including carbon dioxide, methane(甲烷 , 沼氣 ) and water vapor. 4). What do you think greenhouse gases do? They trap heat from the sun and therefore warm the earth. (This part enable students to know and think more about what is global warming by looking at some pictures and answering some questions. During this part, at first,
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