高二英语Unit9 Warming up课件

A great deal of power is needed to run the
factories of modern industrial nations. Automobiles, trains, planes, and buses need power too. Nearly all of this power is produced in the same way-burning fuels. The burning produces wastes. Some of the wastes get into the air, causing air pollution.
Do you know?
4 billion of throwaway cartons we get
through in a year. They are typically made of several materials which are difficult to recycle 7 million of tones of food dumped into landfill every year.
Effects
What can we do Walk or ride a bicycle instead. to prevent air Make sure the harmful smoke should be made pollution harmless before it goes into the air. Limit the number of cars.
Water Pollution
Rubbish
Air pollution
Deforestation
Desertification
Starvation
Water is undoubtedly the most precious natural resource exciting on our planet. Over 70％ of the Earth’s surface is covered by oceans. Unfortunately, most of the water cannot be used for drinking.
Many people don’t have enough clean drinking water. Effects There would be more patients in the hospitals because of waterborne diseases. The animals living with water would die. What can we Never throw rubbish into rives or lakes. We should be more careful with our water, do to stop try to use less and recycle as much water as water possible. pollution? We should try to invent a new technology to deal with the waste water.
Over 2.4 billion people have no access to good sanitation. Every day, as many as half of all the people on the earth suffer from one of the many diseases caused by poor sanitation
Air pollution
Causes
Motor vehicles are a major source of air pollution.
The waste gas of burning coal and oil from factories, power stations, air conditioners. Polluted air causes diseases and may make it easier for children to get sick in the future. Acid rain(酸雨). Climate change—more carbon dioxide is released into the atmosphere, thus increasing the effects of global warming.
Rubbish/waste pollution
Causes Effects People throw rubbish in the streets or in nature. The products use too much packaging or wrapping Make the environment ugly,dirty and even dangerous People may suffer diseases because of poor living conditions. What can we do to reduce the amount of rubbish? Never use one-off chopsticks, lunch-boxes and cups. We should not throw rubbish at will but put the waste into rubbish bins.
Can you imagine that this is the water they drink everyday
It is estimated that over 1.5 billion people lack safe drinking water and that at least 5 million deaths per year can be attributed to waterborne diseases.
What can we do to prevent air pollution
smoke from cars
Smoke from power station
smoke from factories
travel ; fall to the ground in the rain
Acid rain cause a lot of damage.
•What do we need to save the world?
Because our home—the earth is injured by pollutions and she must be sent to hospital .
Pollution and serious problems facing the earth
Unit 9 Saving the earth
Let’s enjoy a song
Heal The World
Michael Jackson
Heal the world If you There's want a to place know in why your heart Think about the generations itthat a better place There's And IMake know love that cannot it make is love lie And we wannar to better place Heal the world Love And is this could be much children For you and for children’s me For our children, and Make itstrong a place better place It only Brighter cares than of joyful tomorrow giving So they know And the entire Forthat you and for me human race If we And try if you we shall really see try for There is a better world them There are people dying And the entire human race In You'll this bliss find we there's cannot no need feelit to cry And think they can make a better place If you care enough for the living There are people dying Fear In this or dread place you'll feel Make it a better place If you care enough for theliving living We There's stop existing no hurt and or sorrow start For you and for me Make it a better place Then There it feels are ways that always to get there For you and enough for me Love's If you enough care for us for growing the living So Make make aa little better space world Make Make a better a better world place ......
Causes
Effects
What can we do to stop water pollution?
waste water from cities
waste water from factories
Waste water from agriculture
Causes
The waste water from factories flow into rivers/lakes/seas without treatment. People throw rubbish into rivers/lakes . The harmful materials such as oil spills (漏油)pollute water resources
Do you know?
Deforestation is the
Water pollution
Trash/garbage/rubbish
Air pollution
The act of cutting down or Deforestation( burning trees毁林)
The area of desert is growing.
Desertification
（沙漠化）
Starvation
The state of suffering and death caused by having no food.
How many kinds of pollution are mentioned in the video? What causes the problems? What are the tention to garbage classification.
Air pollution causes more than 2.7 million deaths in the world every year.
Air pollution
Causes
Effects