Transcript temp_14052910459662.ppt

A riddle
energy:
We cannot live without it.
It is power.
We can get it from coal,
water, sun and etc.
It makes machine work,
provides heat and makes
electricity.
Homework
Find out the words about
energy sources
Requirement:
1. Find out the words on the internet , text
book and so on.
2.Write them down on the exercise books.
3. Show them on ppt.
Pre reading
Wind power
Nuclear
Oil
Coal
Solar energy
Water power
What effects can the use of energy
cause on the earth?
The Earth Is Becoming Warmer
—But Does It Matter?
A scientific report
Part1
• Who wrote the report?
• Where is the report from?
• What is the report about?
Part1
Author:
Report
Sophie Armstrong
Magazine:
Content:
Earth Care
How has global
warming come
about?
Does it matter?
Part 2 para. 1
1.What happens to the
earth?
2. What has caused the
problem?
“it is human activity that has caused
this global warming rather
notthan a
random but natural phenomenon.”
•
True or False.
T
1. Human activity has caused global
warming.
2.
T Global warming is a natural
phenomenon.
3.
is a random
F Global warming isn’t
phenomenon.
para. 2, 3 and 4
Task 1:
Get the information
of para. 2, 3 and 4
para.
2,
3
and
4
Group work
Pair work
A
B
Para. 2
Para. 3, 4
Form 1
Form 2
para. 2, 3 and 4
Form 1
_____fossil
fuels
greenhouse
gases
_________
________
heat from
the sun
_____more extra
carbon dioxide
________
the earth
_______global
warming
para. 2, 3 and 4
Form 2
______
fossil
fuels
_______
more
carbon
dioxide
Temperature
_________
________
global
warming
para. 2, 3 and 4
Task 2:
Share the
information.
para.
2,
3
and
4
Group work
Pair work
A
Para. 3,4
Form 2
B
Para. 2
Form 1
Pair work
Introduce in complete
sentences in turns
Listen carefully and write
down the information.
Para. 2 , 3, 4
Report
How has global
warming come about?
Para. 2 , 3, 4
… the increase in the earth’s
temperature is due to the
burning of fossil fuels like coal,
natural gas and oil to produce
energy.
Para. 6
• How many different
opinions on global
warming?
• What are they? And why
do the think so?
Para. 6
Scientists Opinions
Dr. Foster
Reasons
the spread of
disasters
a
catastrophe Disappearance
species
George not to worry make life better
Produce
more
about
Grow quicker
Post reading
What is your opinion on
global warming?
Para. 3
a.What human activity caused global
warming?
b. What are byproducts of this process?
c. What is “ greenhouse effect”?
d. What is the problem of greenhouse
effect?
Para. 4&5
a.When have the levels of carbon
dioxide increased greatly?
b.Who made measurements of CO2 and
when?
c.How much did the carbon dioxide go
up during these years?
d. What caused the increase of carbon
dioxide?