大学体验英语第三册unit1caringforourearth.ppt

Leaning objectives: Talk about environmental issues; Talk about what we should do to protect our earth; Understand the text and master the language skills. Learn how to write a letter of invitation to an symposium, forum or conference; Visit culture salon about our environment.,Unit 1 Caring for Our Earthpassage A,Global Warming: An increase in the average temperature of the earths atmosphere, especially a sustained increase sufficient to cause climatic change.,1. Listen and TalkGlobal Warming,fossil fuels ecological disruption make a difference cut down greenhouse breathe in carbon dioxide,low-flow shower heads and faucets energy efficient a stack of newspapers mount a campaign renewable,1. Listen and Talk Global Warming,fossil fuel,showerheads and faucets,Clean Energy,solar heater,solar lamp,solar calculator,Clean Energy,windmill,wind power station,The view of each of the four experts interviewed: 1) We should see the world as one interconnected, interrelated whole. (Aman Motwane) 2)The two most pressing environmental issues are deforesting and global warming. (Walter Semkiw) 3)Air and water pollution are our Number One priorities. (Leon Nacson) 4)We are the cause of the ailing planet and we are the victims. (Amrit Desai),2. Content Awareness,服了这些药，你过几天就会好了。 Take this medicine, and youll be well in a few days. 做事不事先考虑往往会导致失败，因此我们应该三思而后行。 Acting before thinking often result in failure, so should think before we leap. 三峡大坝工程会怎样影响当地的居民？ How will the Three Gorges Dam impact on the local residents? 在发展经济的过程中，我们必须优先考虑环境问题。 In the process of economic development, we must give priority to environmental issues.,3. Language Focus,一旦形势到了无法挽回的地步，危机就会爆发。 Once the situation reaches to the point of no return, a crisis is inevitable. 你应该和其他同学交流观点，并听取他们在这个问题上的观点. You should share your views with other students and listen to their opinions on this issue. 对日益严重的环境问题我们不能袖手旁观而应该采取积极行动。 We cant just sit back and do nothing about the increasingly serious environmental problems ; we should take positive action.,Language Focus,What is the message of the interview? The message is that we should take our responsibility to protect the environment and take action to save our mother earth. Write a summary of the interview.,After Reading,How “green” are you? How much are you aware of the damage you are doing to our Mother Earth?,After Reading,garbage dump,landfill,incineration,Passage B Frog Story,Passage B Frog Story,Passage B Frog Story,American robin,Passage B Frog Story,sugar maple,Why does the author build a log cabin in the woods of Northern Wisconsin? What is the log cabin like? Where is the tree frog? Where does the author put the tree frog? How long has the tree frog been with the author? Why does the tree frog come back from the green house?,Passage B Frog Story,How do the author and the tree grog communicate with each other? What was the author working on at that time? What does the fax from his friend say? What will happen to the maple trees and the beautiful Wisconsin?,Passage B Frog Story,What does the story about the tree frog say? Why are tree frogs “an indicator species”? What did the author understand? What message does the frog have for us?,Passage B Frog Story,