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Unit4 Unit4 Global Global
warmingwarming
large population energy crisis 能源危机
bird flu
What effects may the events have on the Earth?
What other problems is the earth facing now ?
Global warming
ReadingReading
The earth is becoming warmer— but does it matter?
1. Where is the article from? Who wrote it? It is from a magazine called Earth Care. Sophie Armstrong wrote it.
2. Find out the topic sentence of the passage. So how has this come about and does it matter? 3.The purpose of the first paragraph is to ______. A. introduce the writer B. explain a change C. introduce the topic D. raise a question
Divide the rest of the passage into 2 parts:
How has this come about(happened)?
Does it matter?
Para_____
Para_____
2—5
6—7
the c_____ of global warming
different ________ about global warming
opinions
cause
It is that is to blame for the global warming.
The burning of
human activity
_______
fossil fuels
________ ______
energy
greenhouse gases
____ heat from the sun and _____ the earthtrap warm
more heat tends to be ______
The global temperature ____ ____
trapped
goes up
huge quantities of extra CO2
functiongreenhouse________effectIt is a __________ phenomenonnatural
a lot of / plenty of
1.what causes global warming ?
2.What is “greenhouse effect?”
3. What is global warming?
global warming
Cause Para (2-5)
Datas showing the earth is becoming warmer
Graph1:________________________________
Graph2:________________________________
the temperature rose about 1 degree Fahrenheit from 1860 to 2000
the carbon dioxide content in the atmosphere went up a lot from 1957to 1997
Over the next 100 years, it will go up as low as_________degrees or as high as_____ degrees.1 to 1.5 5
Providing evidence
A writing tip: give the supporting points and details to the writing statement.
Dr. Janice Foster George Hambley
Carbon dioxide has caused the global temperature to __________. An increase of five degrees would be a ____________ and could be ______________.
More carbon dioxide is a __________ thing,which makes crops __________ more and will encourage ____________________.
go up
catastrophe
very serious
positive
produce
a greater range of animals
George Hambley is to Dr.Janice Foster’s opinion
opposed
the n effect will be terrible
global warming will do ____ to the earth
good
a big disaster
disagree with
negative
Opinions Para (6-7)
T or F1.Global warming can be stopped immediately if we take some measures.
2. It is clear what the effects of the global warming will be.
F
FNo one knows ?
3.The author probably agrees that ________A. actually global warming is good for man.B. we should do nothing about the global warming.C. catastrophes will happen if the globe keeps on warming.D. a lot remains to be found out about the effects of global warming.
D 〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓
〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓
Of the two scientists’ opinions, which are you in favor of ?
Why ?
支持 be for / subscribe to （ to 介词） / agree with……….
反对 be against/ be opposed to （ to 介词） / object to （ to 介词） ……..
Phrases for reference:
What can we do to deal with global warming?
.
.
Try to reduce the use of motor vehicles
electric vehicle
bike running
Try to reduce the use of motor vehiclesTo reduce carbon dioxide and protect the globe
litter classification
planting trees
Can you find more suggestions about reducing the amount of carbon dioxide and saving energy in our daily life?
to Earth Care
ending
……
……
……
……
……
A letter to Earth Care
Dear Earth Care, I’m writing to share my good suggestions on how to reduce carbon dioxide and save energy in our daily life. I am sure every one can make a difference.
suggestions
Yours……..
Just do it.
Your contributions count!
Make it a better place
Homework
Finish the letter to EarthCare.
Read the passage again and review the new words and expressions.
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