(共14张PPT)
Global warming
Unit 4 module 6
Water power
solar energy
Wind power
Coal power station
Greenhouse Gases
1
Carbon dioxide
二氧化碳
2
Water vapor
水蒸气
1
1
Methane 甲烷
3
Reading & Comprehending :
The Earth is Becoming Warmer
--But Does It Matter
Read the passage quickly and answer the following questions:
1.Who wrote the magazine article What is
the name of the magazine
2. What are the names of the three scientists mentioned in the article
3. Do they agree with each other about global
warming
4. What does the article mainly talk about
Fast Reading
Are the statements True or false Correct the false one.
1. Only a few scientists subscribe to the view that the increase in the earth's temperature is due to the burning of fossil fuels.
2. If there were no ‘greenhouse effect’ , the earth would be about 33 degrees Celsius cooler than it is.
3. We need greenhouse gases. So we should add huge quantities of extra carbon dioxide into the atmosphere.
4. It was Janice Foster who made accurate measurements of the amount of carbon dioxide in the air.
5. All scientists agree that the burning of fossil fuels has resulted in more carbon dioxide.
6. George Hambley agrees with Janice Foster on global warming.
All scientists
T
F
F
But too much carbon dioxide
F
Charles Keeling
F
Is opposed to
T
will cause temperature to go up
Careful Reading
Listen to the tape and fill in the blank
Janice Foster:
It could be very ______
There may be a ____of several metres in the sea level.
It may cause severe storms, _____,droughts, famines, the _______of diseases and the ____________of species.
George Hambley:
More carbon dioxide is actually a _________ thing
It will make plants grow __________;
Crops will produce ______;
it will encourage a ________ range of animals----all of which will make life for human beings __________
serious
rise
floods
spread
disappearance
positive
quicker
more
greater
better
Maldives (马尔代夫) is disappearing from the world
The minimum effort is also a kind of support.
再小的力量也是一种支持。
What can you do to slow the
global warming
Let’s stop pollution !
Let’s save the earth !
Promise
action now!
Homework
After class, ask more people to join you in your action!
Thank you
See you
