资源简介

(共23张PPT)
Unit 3
Reading and Thinking
Environmental
Protection
Lead in
Watch a video and answer the questions.
Q1: What are the extreme weather and disasters mentioned in the video
Lead in
Watch a video and answer the questions.
global warming
Q2: What causes such extreme weather and disasters
Prediction
Predict the main idea from the title and pictures
CLIMATE CHANGE REQUIRES THE WORLD’S ATTENTION
The temperature of the global surface rose about 1.2 ℃ from 1920 to 2016. The earth is becoming warmer and warmer.
The polar bear starved to death for lacking food.
Title
Global warming has caused some disasters and we must pay attention to it.
Main idea
Prediction
What is the text type How do you know
C. Description
A. Narration
B. Exposition
Because in the expository text, the authors sometimes use some graphs or diagrams in their essays in order to convince their readers. These graphs and diagrams often come from scientific research reports and other reliable resources.
Reading
CLIMATE CHANGE REQUIRES THE WORLD’S ATTENTION
Read for the main idea and the structure
The opening sentence
The closing sentence
Standout sentence
Summarize by
yourself
How to to find out the main idea of each paragraph
Find out the topic sentence of each paragraph and summarize.
Causes
Consequences
Solution
evidence of climate change
Read for details
climate
change
Evidence 1: _______________________________
Evidence 2: ______________
Evidence 3: ___________________
a ocean and atmosphere
ice
sea levels
What evidence of climate change can you find
melting
rising
warming
Para 2
Para 3
Para 4
Para 5
Para 1
Read for details
An example of climate change
The following reasons account for the death of the polar bear, with one influencing another. Read paragraph 2 and put them in a correct logical order.
climate change
starvation
longer
food-seeking travel
lack of food
low sea-ice level
What is the root cause
Para 1
Para 3
Para 4
Para 5
Para 2
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
Read for details
Para 1
Para 2
Para 4
Supporters Say
Definition
Heat from the sun enters the __________ and warms Earth’s __________ as _________-wave radiation.
habitable
atmosphere
surface
short
extra
fossil fuels
natural greenhouse effect
Para 3
man-made greenhouse effect
Function
Keeping Earth’s warm and_____________
Definition
People produce huge amounts of_________ greenhouse gases by burning_____________.
A big problem
More ________ energy is trapped in the atmosphere and causes Earth’s surface tempreature to ________ quickly.
heat
rise
Find information about
“greenhouse effect”
Para 5
Read for details
Find out the consequences of dramatic climate change.
1.________weather
2.________
disasters
extreme
natural
examples
results
1.extreme
__________
2.________
heatwaves
1.serious damage
2._______human lives
3._________losses
costing
economic
led to
the rise in temperature
Para 1
Para 2
Para 5
Para 3
Para 4
rainstorms
Why did the author mention the climate scientists’ warning
Because it is essential that we take action and it needs to be brought to everyone’s attention.
Read for details
Find out the solutions mentioned
Governments
take appropriate actions and measures
Individuals
To inspire readers to do whatever they can to deal with this problem.
educate everyone about global warming, along with its causes and impacts
How can the world’s attention help
make policies
reduce carbon footprint
Why is a question left in the end
Para 1
Para 2
Para 4
Para 3
Para 5
Summary
Climate
Change
natural greenhouse
effect
man-made greenhouse effect
1. a warming ocean and atmosphere
2. rising sea levels
3. melting ice
4. a dead polar bear
extreme weather
natural disasters
pheno-
-mena
consequences
causes
solutions
governments
individuals
What are the writing skills used in this exposition
exposition
use graphs
use examples
make definitions
Then what is causing the increase in the global average surface temperature
So what will you do to help
...the "greenhouse effect", which has two common meanings: ...
dead bear，melting ice, sea level ...
ask questions
Summary
What is “carbon footprint”
Thinking
Thinking
What should we do in daily life to
reduce “carbon footprint”
Share in class
Take the stairs instead of elevator
plant more trees
Don't litter
Go to school by bike instead of by car/bus
Turn off the lights when leaving
Use basket or
environmental basket bag
Thinking
Watch the video clip and learn the 3R principle.
Recycle
Reduce
Reuse
1.Be careful how long you take a shower. →Take shorter showers
2.Turn off the water when you are brushing your teeth.
3.Only use the necessary energy. Turn off the lights when they are not in use.
4. Take quick drinks.
5. Walk to school.
6. Pull out plugs when you are not using them.
1.Reuse stuff when you are out and about(外出活动).If you can use it again, don't throw it out!
2.Reuse bottles, bags, containers and rags(布料).
3. Donate toys, so someone else can use them.
4.Donate clothes.
1. Just throwing away is not enough. Recycle some things to make new stuff !
2. Like paper, cans, plastic, glass, cardboard, games, CDs and DVDs, light bulbs, cartridges (墨盒), batteries, laptops, cell phones, the newspaper and different kinds of metals.
地球能满足人类的需要，但满足不了人类的贪婪。
Earth provides enough to satisfy every man’s needs, but not every man’s greed.
— Mohandas K. Gandhi
Thanks!
Reading and Thinking

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