1. Unit 9 Saving the earth

2. Why is she crying?

3. Have we done something bad to her?
Discuss
Why is she so sad?
Have we done something bad to her?

4. Help

5. What problems are mentioned in the video?

6. The water is seriously polluted.

7. Can you imagine that this is the water they drink everyday?

8. Waste from factories and cities should be stopped
Waste from factories and cities should be stopped. We can use new technologies to deal with the waste water. We should also be more careful with our water, try to use less and recycle as much water as possible.

9. Air pollution

10. Waste from factories and cars should be stopped
Waste from factories and cars should be stopped. We can reduce air pollution by using new technologies and using less energy. The harmful smoke should be made harmless before it goes into the air. More trees should also be planted.

11. solar energy

12. poor sanitation

13. We can reduce the amount of garbage/rubbish by producing and buying products that use less packaging or wrapping. We should never throw garbage in the streets or in nature. We should also try to recycle as much as possible.

14. desert

15. desertification
The area of desert is growing.

16. Why is more and more land becoming desert?

17. Dunhuang
Gebi
A great city
(China)
A desert
Why?
two causes:

18. too many sheep and cattle
all the grass be eaten
grass never grow again ; the land become desert

19. Trees are cut down.

20. desertification
If our land turns into desert, we won’t be able to grow enough food. That may cause starvation. Desertification is mainly caused by deforestation and changes in climate. It can be reduced if we try to “repair” desert and protect areas that are in danger of becoming desert.

21. Many forests have been destroyed.
deforestation

22. what will happen after the trees are cut down?

23. soil be blown away
trees be cut down
nothing to hold…
soil be washed into…

24. deforestation
Our need for wood and fuel cause deforestation, which in turn leads to desertification. We should make strict laws to protect the forests. We can reduce the effects of deforestation by planting new trees and we can also try to use less wood.

25. one-off

26. Starvation(hunger) and poverty

27. Starvation is mainly caused by the uneven distribution of wealth and sometimes by war or natural disasters. We can reduce starvation by redistributing the wealth of rich countries, by providing education and technology to developing countries, and by giving monetary aid to disaster-stricken areas.

28. overpopulation

29. Many precious animals are killed and dying out.

30. What is the biggest problem facing the earth?why do you think so?

31. What should we do and not do to save our earth?
thinking
Pair work
What should we do and not do to save our earth?

32. Use one-off chopsticks , lunch-boxes and cups.
When sneezing, use paper tissue instead of a handkerchief.
Don’t throw rubbish at will.
Don’t waste electricity.
Use as much water as we like since we pay for it.

33. Wear coats made of fur for they are beautiful.
Don’t destroy trees and grass.
Wear coats made of fur for they are beautiful.
Build more and more houses on farmland.
Plant trees around your house.
Use fridges and air conditioners to keep cool.

34. We have only one earth !!!
Help

35. Save our earth, save ourselves!!
Return GREEN to the earth!!

36. Listening

37. 1. Why is she giving this speech? To celebrate Earth Day.
2. What does she think the most serious problem is?
water pollution
3. What does she say we should do about it ?
Learn to take better care of our water
1)____________________________________
2)____________________________________
3)____________________________________
Stop polluting water
Learn to save water in our daily life

38. Part 2 Outline the speaker’s arguments.
Argument 1: we should ______________________.
We must ________________________.
We must ___________________________________.
If we _____________________, we ____________.
take better care of our water
… careful …
use…technology…
to solve the problem.
work …and share…

39. Argument 2:___________________________.
Problem:______________________________ _______________________________________.
Solutions: __________________________________________.
__________________________________________.
__________________________________________
____________________________________________________________________________________.
We must stop polluting our water
…polluting …at an alarming pace.
…pollute the air and the water
① …change the way…
② …not drive…
③ …try not to …more than what is absolutely necessary.
④ …not buy…
⑤ …make …and use …to make sure that…

40. burning a lot of coal ? discussion
What’s your attitude towards
burning a lot of coal ?
Work in groups of four, including a businessman, an environmentalist, a scientist and a local citizen.

41. businessman scientist local citizen A
An environmentalist
scientist
local citizen
You think that we should burn the coal because…
You don’t think we should burn the coal because…
You think that we should spend more money on science so that…
We must burn the coal so that we can get money to develop our area…

42. air pollution water pollution deforestation poverty poor sanitation
which do you think is the most serious problem?
air pollution
water pollution
deforestation
poverty
poor sanitation
desertification
I can’t imagine that …
It’clear that …
I’m all for …(赞同)
I believe that
we must …
If nothing is done…,then …
It would be better if we …
Sure /
Certainly/
absolutely
Is there a better way to …?