高中英語 unit4《Global Warming》課件1 新人教版選修6

The earth is becoming warming-But does it matter?Learning Aim:Know well the global warmingEmotion Aim: Save energy and protect environmentWhat is a greenhouse used for?How does it work?1.Who wrote the magazine article? What is the name of the magazine?Sophie ArmstrongEarth CareScan the passage and answer the following questions:Dr. Janice Foster2. What are the names of the three scientists mentioned in the article?Charles KeelingGeorge Hambley3.THE DIFFERENT IDEAS BETWEEN DR. JANICE FOSTER & GEORGE HAMBLEYDr. Janice Foster George 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 _ more and will en- courage _.go upcatastrophevery seriouspositiveproduce a greater range of animals4. What are the two graphs about? The first graph shows:The second graph shows: the temperature increase of one degree Fahrenheit between 1860 to 2000. the carbon dioxide content in the atmosphere from 1957 to 1997.5. What is global warming? The earth is becoming warmer.6. How has global warming come about?Human activityburnig of fossil fuelsGreenhouse effectgreenhouse gases we need those gases from around 315 parts per million to around 370 parts per millionHuge quantities of extra carbon dioxideFrom 1957 to 19977. What are the effects of global warming? v The sea level to rise v Severestorms,droughts ,famines, the spread of diseases, and the destruction of speciesv Make plants grow faster.The main idea of the passage:Part 1(Paragraphs 1) Part 2(Paragraphs 2-4) Part 3(Paragraphs5-10) Introduce a debate over the issue of global warmingIllustrate how global warming comes aboutList two different attitudes among scientists towards global warmingPart 4(Paragraphs 11)Its up to readers to think and decide whether people should do something about global warming or notFinish Ex.2 ( decide whether the statements true or false after reading the article carefully)What can we do to control the greenhouse effect?Let us save energy and protect environment together.Thank you!