Unit 3 Environmental Protection Reading and Thinking 教学课件---人教版高中英语（2019）选择性必修三

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Unit 3 Environmental Protection
Reading and Thinking
人教版高中英语2019选择性必修三
Reading and Thinking
Climate Change Requires the World’s Attention
By the end of this class, we’ll be able to
1. know about climate change and summarize the main idea of each paragraph;
2. learn about “greenhouse effect” and describe how it works;
3. be aware of the consequences of climate change and enhance awareness of environmental protection;
4. voice personal opinions on climate change.
Learning objectives
Do you like polar bears
Lead-in
But this is what polar bears are really like!
What caused the polar bear’s death
Global
warming
Environmental Protection
Invite you to make a voice call…
10：55
Decline
Accept
Nezha
There is no doubt that the Earth is getting warmer and warmer.
The polar bear was skin and bones and starved to death.
Climate Change Requires the World’s Attention
Pre-reading
01
02
03
04
05
Global climate is changing dramatically.
An alarming case about a bear starved to death.
What is causing the increase in the global average surface temperature.
The consequences of the rise in temperature.
The solutions to reducing greenhouse gas emissions.
1
2
3
4
5
phenomena
causes
consequences
solutions
Reading for main idea
Reading for stucture
While-reading
The opening sentence
The closing sentence
Standout sentence
Summarize by ourselves
main idea
1. What’s the type of the text
A. News report
B. Narration
C. Exposition
D. Argumentation
2. In which section of a newspaper or magazine may we find this passage
A. Environment
B. Economy
C. Education
D. Entertainment
While-reading
1. What happened to the Earth
The earth is getting warmer and warmer.
evidence 1:___________
evidence 2:___________
evidence 3:___________
2
1
a warming ocean and atmosphere
melting ice
rising sea level
Reading for the details (Para1-2: phenomena)
2
1
A problem
Reading for the details (Para1-2: phenomena)
Climate change
rising sea levels
bears could not hunt
had to travel greater distances to find food
starved to death
its dead body was found
The earth is getting warmer and warmer.
Function:
Keeping Earth’s climate warm and habitable.
A big problem:
Causing Earth’s surface temperature to rise quickly if too much heat energy is trapped.
greenhouse effect
greenhouse effect
Greenhouse
effect
Natural
Man-made
Reading for the details (Para3: causes)
What is causing the increase in the global average surface temperature
Diagrams are very useful tools that can be used to brainstorm ideas, map out processes, show cause and effect relationships, explain a new idea or concept, and so on.
Draw a diagram
绘图表
Atmosphere
D
How dose the greenhouse effect work
B
A
C
D. Heat enters the atmosphere
B. Reflected sunlight
C. Heat reflected back to earth’ surface
A. Heat released back into space
Global warming
extreme weather
natural disasters
serious damage, costing human lives
economic losses
extreme rainstorms, heatwaves
lead to
lead to
results
examples
What are the consequences of the global temperature rise
Reading for the details (Para.4: consequences)
Why did the author mention the climate scientists’ warning
Because global warming needs everyone’s attention and it is essential that we take appropriate actions.
Reading for language features
What writing techniques are used in this expository essay
Quotations from experts in the field (para 4);
Examples and a case study as evidence (para 1-2);
Explanations of scientific concepts (para 3);
measures
governments
individuals
make policies
take appropriate actions and measures
reduce our “carbon footprint”
educate everyone about global warming
Reading for the details (Para.5: solutions)
What can we do to reduce “carbon footprint”
Post-reading
In my opinion, we should ________, for it is a good way to help ____________.
As far as I’m concerned, it would be a great idea if we could _________. By doing this, we can help _________.
Personally speaking, I strongly suggest that we should ________, for the reason that __________.
Sort the garbage
Avoid the use of plastic bags
Value our own role
End wasting resources
Encourage others to participate in it
Alter/change our lifestyle
Ride a bike or walk to school
Turn off the power when not in use
Help promote environmental protection
S
A
V
E
E
A
R
T
H
We can do......
Earth provides enough to satisfy every man’s needs, but not every man’s greed.
— Mohandas K. Gandhi
地球能满足人类的需要，
但满足不了人类的贪婪。
Conclusion
Every step we take counts.
Everyone's effort matters.
Climate change requires the attention of people from all over the world.
We will try our best to
S
A
V
E
E
A
R
T
H
Summary
summarized the main idea of each paragraph by using reading strategy;
learned an expository essay by drawing mind map;
summarized the wrting techniques in an expository essay;
discussed some possible solutions for reducing our carbon footprint.
phenomena
effects
causes
solutions
Global
warmming
In this class, we have
Compulsory Homework:
Design a poster with your partners to call on all people to take part in environmental protection according to this passage.
Optional Homework:
Search more information about what China government has done, is doing and will do to deal with climate change, then share it with us.
Homework
Items Evaluation
I mastered the usage of targeted words. 5 4 3 2 1
I can grasp the main idea of the whole passage and each paragraph. 5 4 3 2 1
I can find the detailed information effectively. 5 4 3 2 1
I got to know more about global warming and greenhouse effect. 5 4 3 2 1
I got senses of mission and responsibility. 5 4 3 2 1
I can participate in this class actively. 5 4 3 2 1
Total scores
Self-evaluation
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