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Unit 4;energy sources;① What are they?② What are these buildings made of? ;_____ the heat from the sun;In the atmosphere surrounding the earth there are gases, which are called “greenhouse gases”.;carbon dioxide;What do you think greenhouse gases do?;The earth is becoming warmer
- ;Fast Reading;Skimming;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.;Part 1.
Part II
Part III ;Part 1.(para1)
raise a question
Part II
Para2. who is to blame for the earth’s
Becoming warmer?
; Para 3
How do human affect the earth warming up?
;Para 4. the levels of carbon dioxide have
increased greatly over the last 100 to 150 years;Tip: You can know somebody’s opinion through understanding his
or what he said. ;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. ;Does global warming matter?;cause the sea level to rise
severe storms
floods
droughts
famines
the spread of diseases
disappearance of species;cause the sea level to rise
severe storms
floods
droughts
famines
the spread of diseases
disappearance of species;Idea-sharing;Assignment ;Thank You !
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