高二英语教学课件ppt.ppt

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1、Reading人教选修人教选修6 Unit4 Global Warming实验中学实验中学:赵大灵赵大灵greenhouseWhat is the greenhouse made and used for?A greenhouse is made of glass and is used for growing plants,especially during cold weather.greenhouse gasesWhats greenhouse effect?greenhouse effect Unit 4Global WarmingRead the text quickly and f

2、ind the answer to the questions:Scanning1.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.3.What do they think about global warming?Do the

3、y agree with one another?They dont agree with each other.Dr.Janice Foster thinks the effects of global warming could be very serious.George Hambley thinks global warming will be mild with few bad environmental consequences.Charles Keeling believes it is the burning of more and more fossil fuels that

4、 is resulting in a big increase in carbon dioxide.4.What are the two graphs about?5.What is the main topic of the article?The first graph shows the temperature increase of one degree Fahrenheit between 1860 to 2000.The second graph shows the carbon dioxide content in the atmosphere from 1957 to 1977

5、.Global warming/the warming of the earth.Skimming 1.The temperature last century didnt increase much.2.Everyone believes that global warming is caused by the activities of humans.3.Janice Foster believes that global warming is caused b the burning fossil fuels.4.Natural gas is a greenhouse gas.5.Car

6、bon dioxide is a byproduct of burning fossil fuels.Read the passage carefully and judge whether the statements are true or false.FFFTT6.People accept Charles Keelings data because he took accurate measurements.7.Flooding could be one of the effects of future global warming.8.George Hambley believes

7、scientists are just guessing about the effects of global warming.9.George Hambley is worried about the effects of carbon dioxide on plant growth.10.It is clear what the effects of global warming will be.FFTTTDetailed readingHow many parts can the text be divided into?Part(Para_ to Para_)Main ideaPar

8、t 1(Para _ )introduce a debate over the issue of global warmingPart 2(Para _to_)illustrate how global warming comes aboutPart 3(Para _ to _)list two different attitudes among scientists towards global warmingPart 4(Para _ to _)Its up to readers to think and decide whether people should do something

9、about global warming or not.12451011DebateGroup A:We shall do something about global warming.Group B:We shall do nothing about global warming.Get into groups of six.Decide which three in your group are going to agree with the statement and which three are going to disagree with the statement.Group A

10、 discuss why they agree with the statement;Group B discuss why they disagree.Group A and B get together.Tell each other the reasons why agree or disagree with the statement.Instructions1.Read the passage again and review the new words and expressions.2.Prepare the debate in groups.3.Surf the Internet for more information about global warming.HomeworkSee you next time!