人教版选修六：Unit 4 Warming up and reading 课件-（13张ppt）

(共13张PPT)
Book 6 unit4
Warming up and reading
Learning aims
1. Learn some useful words and phrases about the natural disasters and environmental protection.
2.Read the passage to learn about the different views about the global warming.
3.Learn about the causes of global warming and try to do something to prevent it.
Leading in:
We depend on energy to do many things in our daily lives. For example, energy lights our cities and heats our buildings. What other things do we use energy for Make a list of things that consume energy in your home, school, or any other places you can think of. Where does all this energy come from Look at the following pictures and tell me what it is.
If global warming continues, human beings
and animals ______________in the future.
Skim the text and sum up the main idea of each paragraph.
Para. 1　 A. the cause of the earth’s becoming warmer
Para. 2 B. the consequence of burning fossil fuels
Para. 3 C. the increase of carbon dioxide
Para. 4 D. global warming will go on
Para. 5 E. puzzles about global warming
Para. 6 F. different attitudes to global warming
Para. 7 G. an introduction to the passage
GABCDFE
II. Choose the best answer.
1. The first graph in the text is used to__________.
A. attract readers’ attention
B. introduce the topic of global warming
C. act as an example
D. support the opinion and make it more convincing
2. Who made accurate measurements of the amount of carbon dioxide in the atmosphere from 1957 to 1997
A. Dr Janice Foster. B. Charles Keeling. C. George Hambley. D. Sophie Armstrong.
D
B
3. According to the text, which of the following statements is NOT true
A. Carbon dioxide is a byproduct of the burning of fossil fuels.
B. All the scientists agree that the burning of more and more fossil fuels leads to the increase of carbon dioxide.
C. If we stop adding carbon dioxide and other greenhouse gases from now on, the temperature will stop going up.
D. It is still not clear what the effects of global warming will be.
C
4. The author probably agrees that__________.
A. global warming is good for us
B. we can do nothing about global warming
C. catastrophes will happen if the globe keeps on warming
D. much remains to be found out about the effects of global warming
5. What is mainly discussed in the text
A. Carbon dioxide. B. Water vapour.
C. Gases in the atmosphere.
D. Temperature increase.
D
D
Post Reading True or false
1. The temperature in the last century did not seem to increase much.
2. Everyone believes that global warming is caused by the activities of humans.
3. Janice Foster believes that she can measure the future global rise in temperature.
T
T
F
4. The rise in carbon dioxide is causing a steady increase in global warming.
5. George Hambley believes that global warming will do good rather than harm to the earth.
6. It is clear what the effects of global warming will be.
T
T
F
Homework
Finish P28, 1. learning about language and
2. complete each sentences