人教版英语选修六Unit-4-Global-Warming(Warming-up-and-readi讲解学习.ppt

人教版英语选修六人教版英语选修六Unit-Unit-4-Global-4-Global-Warming(Warming-up-Warming(Warming-up-and-readiand-readi Look at the following pictures and finish the two questions:1.what disasters are they?2.can you guess what cause these disasters?Warming up What disasters are they?FloodDroughtfamine stormCan you guess what cause these disasters?What are the reasons of global warming?smoke fromcars smoke fromfactories cut down trees Plastic bagsThe earth is becoming warmer-But does it matter?1.Who wrote the magazine article?What is the name of the magazine?2.What are the names of the three scientists mentioned in the article?Sophie Armstrong,Earth Care.Dr Janice Foster,Charles Keeling,George Hambley.I.skim the text and sum up the main idea of each paragraph.Para.1Para.2Para.3Para.4Para.5Para.6Para.7A.the cause of the earths becoming warmerB.the consequence of burning fossil fuelsC.the increase of carbon dioxide D.global warming will go on E.puzzles about global warmingF.different attitudes to global warmingG.an introduction to the passageRead the article in detail Read the article in detail and finish the following and finish the following task.task.The different ideas between Dr.Janice Foster&George Hambley Dr.Janice FosterGeorge HambleyCarbon dioxide has caused the global temperature to _.An increase of five degrees would be a _ and could be _.More carbon dioxide is a _ thing,which makes crops _ and will encourage _ _.go upcatastrophevery seriouspositiveproduce more a greater range of animalsStep V Summary The earth is becoming warming and all scientists _ _ the view that the increase in the earths temperature is due to the burning of fossil _.All scientists_ the date and agree the burning or more and more fossil fuels that has _ this increase.However,the attitude of scientists towards this rise is completely _.On the one hand,Dr.Foster thinks that the _ which increases the temperature by 5 degrees would be a _.On the other hand,George Hambley,who are _ this view,believe that we should not worry about high levels of carbon dioxide in the air.They predict that any warming will be _ with few bad environmental _.But no one really knows the_ of global warming.subscribe tofuelsacceptresulted in different trend catastrophe opposed tomildconsequenceseffectsIn groups,discuss what we can do about global warming?Useful structures1.had better(not)do2.how about/what about doing3.I think you should do4.I suggest/advice that you should do.5.Why not/why dont you do?6.It is a good ideal that Some suggestions*Turn the lights,the TV,the computer off if you are not using them.*Walk or ride a bike if you can.*Recycle cans,bottles,plastic bags and newspapers if circumstances allow you to.*Buy things that are economical with energy.*Plant trees in your garden or your school yard.Homework 1.Read the passage again and review the new words and expressions.2.Write a composition about how to protect our environment?Title:The Crisis of Global Warming Background:全球变暖全球变暖 Cause:温室气体排放温室气体排放,其中大约其中大约70%为二为二 氧化碳氧化碳consequence:海平面上升海平面上升 自然灾害频繁自然灾害频繁 measures:1.节约家用电器节约家用电器 2.少用机动车辆少用机动车辆 3.植树造林植树造林 词数：词数：120个个 WritingWrite a passage about what we can do about global warming.Para 1:ProblemsPara 2:What causes the problems?Para 3:What we can do?Para 4:A slogan/a suggestion/a hopeGlobal warming has become one of the biggest environmental concerns for people all over the world.With the booming of economy,the emission of the greenhouse gas,consisting of about 70%carbon dioxide,has been steadily increased,contributing greatly to the global warming.The increase in the temperature of earth has caused many harmful effects.It melts the ice caps,raising sea levels.It disturbs weather patterns,causing frequent natural disasters such as floods,droughts,severe storms,hurricanes and so on.A SampleActually,its easy for everyone to do something to save energy and reduce the emission of greenhouse gas.For example,turn off an electrical appliance if it is not used.Walking,cycling,carpooling or using public transportation instead of using motor vehicles are all good ways to reduce the emission of carbon dioxide.We are also supposed to plant trees and preserve forests.Every individual counts and individuals together makes a big difference.结束结束