unit 9 saving the earth air pollution water pollution

Unit 9

Saving the earth

Air pollution

water pollution

waste pollution

deforestation

The area of desertis growing. desertification

Noise pollution

War and violence

starvation

diseases

What can we do to solve the problems?

air pollution water pollution

waste pollution deforestation

desertification noise pollution

war and violence starvation

disease poverty

Effects

Cause bad weather (sandstorm).

Lands or montains turn into desert.

Cause starvation.

Causes

Cut too much wood.

Rich surface soil will be blown away by wind or washed by rain down to hills and into rivers.

Sollutions

Use less wood .

Plant more new trees. /Try to make desert areas become green land.

Deforestation Desertification

Rubbish/waste pollution

Effects

Make the environment ugly,dirty and even dangerous.

Cause diseases.

Causes

Throw rubbish in the streets or in nature.

Buy products that use too much packaging.

Sollutions

Throw waste in rubbish bins.

Buy products that use less packaging.

Recycle as much as possible.

Effects

Make people get sick or even die.

Make the environment dirty.

Cause acid rain( 酸雨 ).

Causes

Factories,power stations,cars,air

conditioners give off waste gas.

Burn coal and oil.

Sollutions

The harmful smoke should be made harmless before it goes into the air.

Ride bikes more.

Limit the number of cars./Make cars that don’t pollute the air.

Air pollution

Effects

Cause society problems:violence,

crime…

Many people die.

Causes

Wars

Uneven distributions of wealth

Lack of education

Sollutions

No wars

Rich countries should help people

who can’t get enough food or education.

starvation

Effects

Many people don’t have enough clean drinking water.

Make people get sick.

Causes

Factories pour waste into rivers/lakes/seas.

People throw rubbish into rivers/lakes.

Sollutions

Use new technology to make sure that factories are green and clean.

Clean the water in the rivers/lakes.

Save water in our daily life.

Water pollution

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 We can use new technologies to deal with the waste water. We should also be more careful with our water. We should also be more careful with our water, try to use less and recycle as much waterwater, try to use less and recycle as much wateras possible.as possible.

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

Problems

Solutions

basket

rubbish

make laws plant trees

recycle batteriestake bike

1.More stores recycle batteries.

2.Plant trees every year.

3.Ride bikes to work.

4.Students study environmental issues in school.

Proposals

5.Use the handkerchief instead of the paper napkin.( 纸巾）

6.Use paper bags instead of plastic bags.

7. Go to work on foot or by bike not by car.

8. Throw cans, bottles, paper and plastic into the dustbin.

9. Don’t use one-off chopsticks , lunch-boxes or disposable cups.

10. Don’t send post-cards, but send electronic cards by e-mail.

11. Don’t throw rubbish everywhere.

12. Don’t make a lot of noise.

13. Don’t waste water.

14. Don’t waste electricity.

15. Don’t destroy trees or grass.

16.Throw waste into rubbish bins;17.We must save our food. We should get as muchfood as we need.18.Never throw rubbish into rivers or lakes.19.We must save paper.20.Use both sides of every piece of paper.21.Recycle paper or cans.22.Buy products that use less package.

Goodbye

Unit 9 Saving the earth

reading

Welcome to the Earth Summit

air pollution water pollution waste pollution

deforestation desertification noise pollution

war and violence

poverty and starvation

incurabledisease

What can we do to solve these problems?

the highest point; top of a mountain

meeting between the heads of two or more countries

Earth Summit:

summit

( 地球峰会 )

Welcome to theEarth Summit!

1. How many earth summits are mentioned in the passage?

2. What are the following numbers related to?

3,000,000

7,000,000

20%

3. In which areas is air pollution a very serious problem?

listening

two

Air pollution alone causes almost three million deaths.

The big three cause more than seven million deaths every year.

20% of the people on earth do not have access to clean drinking water.

3. In which areas is air pollution a very

serious problem?

Air pollution is a big problem in rural areasand it is also a big problem in very large cities, especially in developing countries.

PartPartⅠⅠ(1)(1)

PartPartⅡⅡ (2~3)(2~3)

PartPartⅢⅢ (4~6)(4~6)

PartPartⅣⅣ( 7)( 7)

Please read the text carefully , then match the main idea with each part.

A. The meaning of the Earth Summit.

B. Education is the key to the solutions for the future.

C. The beginning of the Earth Summit and the purpose of holding it.

D. The topics of the Earth Summit.

CompetitionCompetition Try your best to find out the answers to the following questions. Each correct answer can add one point to your group. The group who gets the most points will win.

Group 1 Group 2 Group 3 Group 4

Details reading

1. When and where was the first Earth

Summit held?

2. What’s the purpose of the first Earth

Summit?

In 1972 in Stockholm, Sweden.

To share ideas about ways to take

better care of the earth.

Para. 1

3. Where was the 2002 Earth Summit

held?

4. What’s the main theme of this Earth

Summit?

In Johannesburg in South Africa.

Sustainable development.

5.What’s the “big three”?

①contaminated

drinking water

②poor sanitation

③air pollution

the three

biggest killers in

the world

Para. 2

6.What do we mean by saying

“sustainable development”?

How we can continue developing the world without damaging the environment.

7. How many people die from the “big

three” every year?

8. How many people die from air

pollution every year?

More than seven million.

Almost three million.

9. What other problems were talked

about in the meeting?

Poverty, war and violence.

Para.3

10. Global development is necessary. At the same time, global development has bad effect( 影响 ) on us. In the text, what’s the bad effect?

That rich people get richer while

the poor get poorer.

11. How to solve this problem that rich

people get richer while the poor get

poorer? Rich countries have a responsibility

towards poor countries and must do

whatever they can to help the poor countries.

Para.4:

12. How can we save the earth?

Only by changing the way we live

can we save the earth.

Para.4-6:13. Do you think the Earth Summit is

meaningful and helpful? Why?

①To help people understand that there exists serious problems and that there is still time to take action.

③To tell us what we can do to help.

②To make people know that if all of us make small changes, we could make a big difference.

Para. 7

14. In order to solve the problem, what’s the

most important thing in the future?

Education.

15. Why is education so important?

With better education, people will be able

to build a better society in harmony with

nature and perhaps put an end to the death

and suffering caused by the big three.

CompetitionCompetition Try your best to find out the answers to the following questions. Each correct answer can add one point to your group. The group who gets the most points will win.

Group 1 Group 2 Group 3 Group 4

Details reading

summaryUse the useful expressionsand phrases we learned in the text to fill the blanks.

The Earth Summit is an international big meeting dealing with serious problems on the earth. The first Earth Summit in 1972 is to share ideas about ways to ________________the earth. One of the main themes of the Earth Summit in 2002 was “______________________”. Most of the speakers in the summit talked about the “big there”, the three _________________ in the world--- ________________________,poor sanitation and _________. The Earth Summit helps people understand there exist ________________ and that there is still time to __________. It can also tell us what we can do to help. ___________ is the key to the future. With better education, people will be able to build a better society ______________ nature and perhaps ________________ the death and suffering caused by the big three. If the world becomes less unfair and if people can get better education, much of the poverty can be __________.

take better care ofsustainable development

biggest killerscontaminated drinking water air pollution

serious problemstake actionEducation

in harmony withput an end to

wiped out

TALKINTALKINGG Imagine that you’re taking part in a United

nations youth programme aimed at improving and protecting the environment. Your group has been asked to decide which problem is the most important and suggest ways of dealing with it.

Man has but one earth!To save the earth is to save man himself!

Goodbye

Congratulations!

1. 1. In 1972, the United Nations held a meeting in Stockholm, Sweden to share ideas about how we can save the earth.

2. In Johannesburg, experts from all over the world spoke about different topics and discussed new ways to solve the problems facing our planet now.

ways to take better care of the earth.

old problems

True or false

3. In the world, developing countries can

prosper on their own.

Without international cooperation, developingcountries cannot prosper, nor will sustainable development be possible.