人教版选修六第四单元GlobalWarmingreading29PPT

1、人教版选修六第四单元GlobalWarmingreading29PPTstove light things that use energy in your home micro-wave oven cassette player heating television hairdryer video player fridge computer washing machine stovewhere electricity is produced by burning coals.The coal power stationsin which oil is refined and made pur

2、e. The Oil Refineriesa facility designed to change nuclear energy into electricity.A nuclear power plant on the roof of a house on a bright sunny day are used to collect solar energy, making your house warm or heating your water.Solar panelsThe Hydro-electric dams are used to keep back water and rai

3、se its level for irrigation or for producing electricity, etc.windcoaloilnuclear power solar power water Energy sourcesRenewable/non-renewableWindCoalOilNuclear powerSunWaterrenewable 可再生的renewablerenewablenon-renewable 不可再生的non-renewablenon-renewable What are they? What are these buildings made of?

4、 Whats the use? greenhouse / glassA greenhouse is used for_, especially during _ weather.Pre-readingTurn to Pre-reading 1,Page 25.Read & answer. growing plantscold_ the heat from the sunkeeps it from _ the air upHow does a greenhouse work?trapfrom: keep sth in a place存住来自的trapsescapingheatsThe earth

5、 is becoming warmer - ReadingPage 26Fast Reading Who wrote the magazine article? The name of the magazine? What are the names of the three scientists mentioned in the article? What is mainly discussed in the passage?Skimming 1. Who wrote the magazine article? The name of the magazine?2. What are the

6、 names of the three scientists mentioned in the article?Sophie Armstrong.Earth Care.Dr Janice Foster, Charles Keeling, George Hambley.Reading tips: In English, some nouns begin with a capital letter(大写字母), such as names of people and places, titles(标题) of magazines, newspapers, stories and books, pe

7、oples titles(头衔), etc.3.What is mainly discussed in the passage?A. What has caused the global warming and whether it matters.B. What effects of the global warming will be.C. How serious the global warming could be.D. What the global warming is.SkimmingReading tips skim the title and Para 1: Title: T

8、HE EARTH IS BECOMING WARMER BUT DOES IT MATTER?Para 1: how has this come about and does it matter?16Look through the main text: Para. 1Para. 2-5IIIPara. 6IIIPara. 7IVIntroduction Body ConclusionParagraph 1Paragraphs 2&5Paragraph 6Part1Part2Part4Main idea of the textPart3Paragraph 7How global warming

9、 comes about? Two different opinions about global warming.The earth is becoming warmer.Should we do anything? Careful Reading1.Read the text again and try to get the main idea of the article.Main ideas of each partWriting techniques( Paragraph 1 )Introduce a debate over the issue of global warming.

10、Raising a questionReadingMain ideas of each partWriting techniques(Paragraphs 23 ) Illustrate how global warming comes about.Giving examples, using graphs, explanation. (Paragraphs 45 ) List two different attitudes among scientists towards global warming.Giving examples, making contrast. (Paragraph

11、6 ) Its up to readers to think and decide whether people should do something about global warming or not. Using a question, leaving readers to think over the issue. 23True or false?( P27 )Reading Comprehension21.The temperature in the last century didnt seem to increase much.2.Everyone believes that

12、 global warming is caused by the activities of humans.3.Janice Foster believes she can measure the future global rise in temperature.4.The rise in carbon dioxide is causing a steady increase in global warming.5.George Hambley believes that global warming will do good rather than harm to the earth.6.

13、It is clear what the effects of global warming will be.What are the two graphs about?Graph 1 shows the temperature difference (温度差异) from 1860 to 2000.Graph 2 shows the carbon dioxide content(二氧化碳含量) in the atmosphere from 1957 to 1997.Graph 1:Graph 2:Does global warming matter?Positive effects Nega

14、tive effects cause the sea level to risesevere stormsfloodsdroughtsfaminesthe spread of diseasesdisappearance of speciesPositive effects Negative effects make plants grow quickercrops will produce morea greater range of animalsmake life better27 The earth is becoming warmer. In your opinion, does it matter? Discussion:A : We shall do something about global