Unit 9 Saving the earth

Why is she crying?

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

Help

What problems are mentioned in the video?

The water is seriously polluted.

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

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.

Air pollution

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.

solar energy

poor sanitation

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.

desert

desertification The area of desert is growing.

Why is more and more land becoming desert?

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

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

Trees are cut down.

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.

Many forests have been destroyed. deforestation

what will happen after the trees are cut down?

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

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.

one-off

Starvation(hunger) and poverty

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.

overpopulation

Many precious animals are killed and dying out.

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

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?

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.

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.

We have only one earth !!! Help

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

Listening

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

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…

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…

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.

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…

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 …?