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人教2003课标版《Writing》集体备课PPT课件优质课下载
Scientists now believe that global warming is caused by cutting down trees, producing more trash, and polluting the environment which are some of the reasons why the temperature has gone up. One of the primary factors that account for the problem is human technologies that release greenhouse gases into the atmosphere. Ever since the industrial revolution in the 1700s, humans have relied on machines in daily life. No doubt that human activities should be to blame for throwing nature off balance.
Faced with global warming, many local governments call on their people to enhance the awareness of environmental protection. For example, carpooling, which means driving with someone to a place that you are both going to, is very popular now. Planting trees and recycling also have a big effect on the air quality. If you recycle, less trash goes to the dump, and less trash gets burned. As a result, there are fewer greenhouse gases in our atmosphere and the earth can be cooled down.
Global Warming
Analyze the structure.
Global warming is the process....
Faced with global warming…
Scientists think that …has been affected…
Scientists now believe that global warming is caused by…
situation
P1:
P2:
effects
P3:
causes
P4:
measures
1. What is mainly talked about in this passage?
A. The melting of glaciers.
B. Global warming.
C. The world's weather.
D. The earth's temperature.
2. From the passage we can see that global warming will bring about _____.
A. the pollution in the atmosphere
B. natural disasters
C. population pollution