Unit 3 Reading课件2023-2024学年沪教牛津版（广州沈阳通用）九年级英语下册

U3 The Environment The world is in danger Get ready: English book, notebook, pens, learning sheet 1 Learning objectives 了解与环保话题相关词汇及短语； 了解各种常见的环境问题，思考造成这些问题的原因以及不同层面的应对措施； 培养青少年环保与责任意识，学会绿色生活。 02 03 01 2 pollution sea-level rising animals dying climate changing global warming Topic talking: The world is in danger What kind of danger does our world meet? 3 What do you know about the greenhouse effect? 4 e f b d c a Matching P34 A1 Pre- reading The article is probably from a(n) ______. A. advertisement （广告） B. poster about the Earth Hour C. environmental science book D. comic（连环画）book A. A narration (记叙文) B. A description（描述文） C. An argumentation（议论文） D. An exposition（说明文） Pre- reading What is the genre (体裁) of this article? 7 The world is _________ Main problem 1: __________ Main problem 3: ____________ Main problem 2: __________ Solution: We need to ________________ The greenhouse effect Cutting down forests Bad habits in danger take proper action Reading for details What is the atmosphere around the world like? 2. What may the greenhouse effect cause? 3mins causes（红笔） effects/results(蓝笔) What is the atmosphere around the world like? Reading for details The atmosphere around the Earth is necessary for all living things. It is like the glass of a greenhouse, letting sunlight in and keeping heat from getting out. Without it, the Earth would be the same as the Moon—cold and lifeless. =no life The greenhouse effect When we burn fuels such as petrol and coal, we produce a gas called carbon dioxide(CO2). Too much of this gas pollutes the atmosphere, and causes it to keep in too much heat. As a result of the greenhouse effect, the Earth’s temperature is increasing. This causes sea level to rise, and in the future may cause cities to disappear. Complete the following chart Causes原因 The greenhouse effect A. 气体 B. 垃圾 C. 木头 D.燃料 burn fuels produce CO2 temperature: increase sea level: rise cities: dis