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选修8《Lesson 1 Global Warming》集体备课PPT课件优质课下载
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1
五分钟倒计时
The main idea of the text is __________.
A. to introduce the topic of global warming to the readers
B. to remind the readers of human activities in the past
C. to introduce the greatest trouble in the future
D. to mention the process of global warming in history
Task 1 : Choose the best answer
Answer: A
Task 2: Skim the text and match the heads with the paragraphs.
1.Draw readers’ attention to the topic by asking questions.
2.What should human beings do.
3.What is global warming.
4.Consequences of global warming.
5. What cause global warming
Para 1.
Para 2.
Para 3.
Para 4.
Para 5.
Para.1
Introduction: Human beings are causing_______ in the Earth’s climate and it is believed that ________________ could be one of the biggest____________________problems
in the 21st century.