1. Unit4 Reading
Global warming

2. What is happening to our earth?
Global warming

3. What has caused the global warming?

4. The effects of global warming
Negative effects:
1 cause the sea level to rise;
2 severe storms;
3 droughts;
4 famine;
5 destruction of species
6 flood
Positive effects:
1 make plants grow faster;
2 crops will produce more;
3 make life better

5. What can we do about global warming?

6. What is Ouyang Guang’ purpose?
Skim the first letter
What is Ouyang Guang’ purpose?
What opinion can you get from his letter?
getting some suggestions for what he can do about global warming
as an individual, he can have no effect on environmental problems

7. No, together, individuals can make a difference.
Skim the second letter
Does Earth Care agree with Ouyang Guang’s opinion?
Scan the second letter
List Earth Care’ suggestions in the chart on page30, and discuss whether you can carry out each suggestion, give your reasons.
No, together, individuals can make a difference.

8. save energy Yes save energy Yes Yes save energy
Earth Care’s suggestion
Can you carry it out
Reason
If you are not using electrical appliances, turn them off.
save energy
Yes
Motor vehicles use a lot of energy, so walk or ride a bike if you can.
save energy
Yes
Recycle cans, bottles, plastics and newspapers and buy things made from recycled materials.
Yes
save energy

9. Earth Care’s suggestion
Can you carry it out
reason
Get your parents or friends to buy products that are made to save energy.
save energy
Yes
Plants absorb carbon dioxide from the air.
Plant more trees.
Yes
Talk with your family and friends about global warming and tell them what you’ve learned.
Together, individuals can make a difference.
Yes

10. commitment put up with electrical so long as circumstance
Word study
Column B
Column A
commitment
put up with
electrical
so long as
circumstance
be casual about
economical
tolerant; bear
belief; an opinion
do sth using less time or money
connected with electricity; using electricity
only if
not showing much care or thought; not care about sth
condition ,situation

11. Discussing
could we, as an individual do something about global warming?

12. turn electrical appliances off
walk or ride a bike
recycle cans, bottles, plastics
plant trees
buy products that are made to save energy
educate others

13. Writing Write a passage about what we can do about global warming.
Para 1: Problems
Para 2: What causes the problems?
Para 3: What we can do?
Para 4: A slogan/a suggestion/a hope

14. Thank you