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《Warming up、Pre-reading、Reading、Comprehending》最新PPT课件优质课下载
greenhouse gases
During the 20th century the temperature of the earth rose about one degree Fahrenheit. That does not seem much to you or me ,but it is a rapid increase when compared other natural changes. So how has this come about and does it matter? Earth Care’s Sophie Armstrong explore these questions.
Task1: Read the leading part(导语)and find out the main idea of this passage.
about and does it matter?
the temperature of the earth rose
So
how has this come
All scientists subscribe to the view that global warming is due to the human activity of burning too many fossil fuels, which produces huge quantities of greenhouse gas—carbon dioxide, causing the temperature to go up.
Para2-3: How has it come about?
How has it come about?
All scientists subscribe to the view that global warming is due to the human activity of burning too many fossil fuels, which produces huge quantities of greenhouse gas--carbon dioxide, causing the temperature to go up.
agree
because of
large amounts of
making/
leading to
rise
Summary
Para.4 and Para.5 give the supporting evidence/details to it!
He found that between these years the carbon dioxide in the atmosphere went up from _____________to________________.
Dr Janice Foster says that over the next 100 years the amount of warming could be ________________degrees Celsius, but it could be_____________________.
around 315 parts
around 370 parts per million
as low as 1 to 1.5
as high as 5 degrees