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(共23张PPT)
Unit 3 Environmental Protection
Reading and thinking
Climate Change Requires the World’s Attention
Learning objectives
At the end of this class, you will be able to
1.grasp the main idea and the structure of the passage
2.figure out the causes and effects of climate change
3.learn to read a diagram
4.put forward some useful solutions to global warming
5.realize your responsibility of taking action to protect our earth
1. What can you see in the picture
2.What is the cause of this phenomenon
A large piece of ice breaking off a large glacier or ice sheet.
Global warming
1.1). What’s happening in the video
2). Why does it happen
The ice is melting.
Because of the global warming.
Lead-in：Watch and Talk
While-reading
Pre-reading
Q1. What do you think might have caused the polar bear’s death
Q2. What is the graph about What information can you get from it
global temperature change
What is the graph about What information can you get from it
the change in the Global Surface Temperature between 1920 and 2016.
Temperature Anomaly
shows how much the temperature has risen above what it would usually be at a base level.
Q1. What's the type of this text
A. News report.
B. Biography.
C. Expository essay.
D. Argumentation.
Q2. In which part of a newspaper or magazine may we find this passage
A. Entertainment
B. Economy
C. Education
D. Environment
Read for the text type
Structure
4. How to change a bad habit and create good ones.
3. The cycle of how habits are formed.
5. Changing habits gradually.
6. No easy way to change bad habits.
2. What a habit is.
1. Why bad teenage habits should be changed.
Exposition说明文
the Problem
the problem
the problem
raise, analyze, solve, conclusion
raise
analyse
solve
conclusion
problem-solving pattern
unit2 的reading 结构
Read for structure
Find out the topic sentence of each paragraph.
Paras.1&2
Para.3
Para.4
Para.5
Expository Essay
problem
cause
consequence
solutions
Paras.1&2
Para.3
Para.4
Para.5
cause
consequence/effect
solutions
causes
effects
soltions
_____
_____
_____
_____
_____
3. 2)Summarize the main idea and the structure.
While-reading: Activity 2 The structure
Para.1
Para.4
Para.3
Para.2
Para.5
a problem - solving exposition
problem
example
causes
effects
solutions
Structure
Exposition说明文
Read and Predict
Pre-reading:
2. 1).What is the text mainly about
A.What the greenhouse effect is.
B.Global warming has caused some disasters
and we must pay attention to it.
C.How polar bears find food.
D.Some polar bears died of starvation.
B
Read Para 1 and choose the best answer.
Evidence 1: ________________________________________
Evidence 2: ______________
Evidence 3: ___________________
How does the writer show us the climate change
A.By analyzing the causes B.By comparison
C.By giving evidences D.By listing data
a ocean and atmosphere
ice
sea levels
climate
change
warming
melting
rising
C
While-reading: Part 1 problem
E.climate change
A.starvation
D. longer
food-seeking travel
C.lack of food
B.low sea-ice level
Read para 2 and analyse the reasons.
Why did the polar bear die
While-reading: Part 1 problem
Can you put them in a correct logical order
E
B
C
D
A
What is the root cause
Line 5 , 6
Part 2 cause
Q. How the greenhouse effect works in natural and man-made situations
Read paragraph 3 and create a diagram describing how the greenhouse effect works.
Heat released back into space
Heat reflected back to Earth’s surface
Reflected sunlight
Atmosphere
Sunlight
Draw a diagram
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. When you read an essay about scientific issues, you can try drawing a diagram, which will not only allow you to visualise the problems more clearly but also can help demonstrate your creative thinking and problem-solving.
Part 3 consequence
Q1. What are the consequences of the global temperature rise
Q2. Why did the author mention the climate scientists’ warning
The rise in the temperature
extreme weather & natural disasters
serious damage, costing human lives
extreme rainstorms, heatwaves
led to
results
examples
Because global warming needs everyone’s attention and it is essential that we take appropriate actions.
Part 4 solutions
Post-reading Group work Discussion
What will you do (to slow the progress of global warming)
Sort the garbage.
Avoid products with a lot of packaging.
Value the existing natural resources like forests.
End wasting resources.
Encourage others to conserve
Adjust our lifestyle
Reduce, reuse, recycle.
Turn off electric devices when they are not in use. Help inform people of the danger of global warming.
Save Earth !
Homework !
Individual:
Draw a mind map to review the whole passage.
Group:
Make a poster about global warming with your group members.
Possible versions!
mind-map
poster
Self-assessment !
Content Excellent Good Average
1.I can grasp the main idea and the structure of the passage.
2.I can figure out the causes and effects of climate change.
3.I can read a diagram.
4.I put forward some useful solutions to global warming.
5.I realize my responsibility of taking action to protect our earth.
Thank you for listening!

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