高二英语GlobalWarmingReading课件.ppt

illustrate how global warming
(Para _2__to_4__) comes about
Part 3
(Para __5_ to __1_0)
Part 4
(Para __1_1 to
___)
list two different attitudes among scientists towards global warming
ቤተ መጻሕፍቲ ባይዱ
4. What are the two graphs about?
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. What is the main topic of the article?
Global warming/ the warming of the earth.
Skimming
Read the passage carefully and judge whether the statements are true or false.
3. What do they think about global warming? Do they agree with one another?
They don't 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 is resulting in a big increase in carbon dioxide.
caused b the burning fossil fuels. T
4. Natural gas is a greenhouse gas. F
5. Carbon dioxide is a byproduct of burning fossil
fuels. T
6. People accept Charles Keeling’s data T because he took accurate measurements. 7. Flooding could be one of the effects of future global warming. T 8. George Hambley believes scientists are just guessing about the effects of global warming. T
How many parts can the text be divided into?
Part (Para_ to Para_ )
Part 1
(Para ___1__ )
Main idea
introduce a debate over the issue of global warming
Part 2
9. George Hambley is worried about the F
effects of carbon dioxide on plant growth. 10. It is clear what the effects of global
warming will be. F
Detailed reading
It’s up to readers to think and decide whether people should do something about global warming or not.
Debate
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 .
1.Who wrote the magazine article? What is the name of the magazine?
Sophie Armstrong, Earth Care.
2.What are the names of the three scientists mentioned in the article? Dr Janice Foster, Charles Keeling, George Hambley.
1. The temperature last century didn’t increase
much.
F
2. Everyone believes that global warming is
caused by the activities of humans. F
3. Janice Foster believes that global warming is
greenhouse gases
What’s greenhouse effect?
greenhouse effect
Unit 4 Global Warming
Scanning
Read the text quickly and find the answer to the questions:
人教选修6 Unit4 Global Warming
Reading
greenhouse
What is the greenhouse made and used for?
A greenhouse is made of glass and is used for growing plants, especially during cold weather.