Презентация Ecological problems Dasha Nekrasova Form 10 The tutor: Cheremiskina M. B. the te онлайн
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- Всего слайдов:19 слайдов
- Для класса:1,2,3,4,5,6,7,8,9,10,11
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Слайды и текст к этой презентации:
№1 слайд
Содержание слайда: Ecological problems
Dasha Nekrasova
Form 10
The tutor:
Cheremiskina M.B.
the teacher of English
№2 слайд
Содержание слайда: Plan
Introduction.
The main problems of ecology.
Air pollution.
Water pollution.
Radiation.
Earthquakes.
The problem of forests felling.
The problem of biological variety.
Global warming.
The hole in the ozone layer.
Instruction.
Ways of removal and utilization of the rubbish.
Conclusion.
№3 слайд
Содержание слайда: Tasks:
To determine the main problems.
To give advices for keeping our environment clean.
To show different ways of solving of ecological problems.
№4 слайд
Содержание слайда: Introduction
Our Earth is a beautiful home for living beings, common for all the humanity forever.
The number of the planet’s population is in increasing constantly, but the technical progress not only for the people’s welfare, but also threatens the life itself. When people pursue great profits, they often act unwisely- destroy nature, pollute the environment. The poisoning of air, land and oceans is the fastest spreading disease of civilization.
№5 слайд
Содержание слайда: Air pollution
Air pollution is a community problem. Cars, trucks, buses and airplanes are the worst polluters. They send partly burned gases into the air. Air can be also polluted by smoke and gases from factories. Dirt, smoke, and gases in the air may be carried away by wind and by air currents, or settle over as a blanket of smog.
№6 слайд
Содержание слайда: Water pollution
Water pollution is caused by dumping wastes into lakes, rivers, and other bodies of water. Harmful wastes may also get into the soil or drain off fields that have been sprayed with pesticides. Pesticides are often used to kill insects and weeds in cities or on farms. Polluted water can spread many diseases.
№7 слайд
Содержание слайда: Radiation
Radiation has become one of the main problems. There are some atomic power stations in our country. It is even a greater disaster for the world. We all remember about Chernobyl catastrophe and its tragic results. Many people, who fought against that fire and received a certain doze of radiation are invalids now.
№8 слайд
Содержание слайда: Earthquakes
Earthquakes is too difficult to forecast them
and many scientists devote themselves to
protect our lives.
№9 слайд
Содержание слайда: The problem of forests felling
Our forests are disappearing because they are
cut down or burnt. If this trend continues, one
day we won’t have enough oxygen to breathe,
we won’t see a beautiful green forests at all.
№10 слайд
Содержание слайда: The problem of biological variety
Every ten minutes one kind of animals, plants or insect dies out forever. If northing is done about it, one million species that are alive today may soon become extinct.
№11 слайд
Содержание слайда: Global warming
Each time we burn gasoline, oil, coal, or every natural gas, more carbon dioxide is added to the atmosphere. The greenhouse effect is what causing the temperate of the Earth to rise, and creating many problems that will begin to take place in the coming decades.
1900 2000
№12 слайд
Содержание слайда: The hole in the ozone layer
Ozone absorbs harmful ultraviolet radiation which is produced by Sun. Ultraviolet radiation can damage cells of living things- plants, animals and people. The damage of ozone has been caused by complex chemical reactions involving chlorine and bromine.
1979 2000
№13 слайд
Содержание слайда:
№14 слайд
Содержание слайда: The World Wildlife Fund
The WWF was founded in 1961. At first it was a
small group of people who wanted to raise to save
animals and plants. Today the WWF was raised
over 35 million for conservation projects and has
created or given support to National parks in 5
continents. It has helped 30 mammals and birds to
survive.
There are a lot of nature centers in all the
countries of the world, such as: “Friends of the
Earth”, “Green peace”, “Trust” and many others.
№15 слайд
Содержание слайда: Way of get rid of solid wastes
Every day people throw away amazing amounts
of garbage and trash. Trucks take the garbage to
the out-of-the-way places. Sometimes the trash is
burned, causing air pollution. But the more healthy
way to get rid of solid wastes is to spread them
over the land and pack them down. After that a
thick layer of earth can be put down over the
garbage and trees and grass can be planted.
№16 слайд
Содержание слайда: Removal and utilization of the rubbish
The problem of removal and utilization of the
rubbish was solved in Japan in a very interesting
way. Careful Japanese people gather food and
industrial waste separately. And they press it in
blocks. Those blocks wear packed up near the cost
in the ocean. So the coast was built up and a new
territory was formed. Now on this land there is a
new town. It is called a town of the future.
№17 слайд
Содержание слайда: If you don’t think about the future you will not to have it
John Golsworthy
Fortunately, it’s not too late to solve these problems. We can plant trees and create parks for endangered animals. We can recycle our wastes and persuade enterprises to stop polluting activities, because it is apparent that we are destroying our Earth and future.
№18 слайд
Содержание слайда: Sources of information
www.wikepedia.ru
“English language: reference book for the schoolchildren and students”/N.V.Beregovaya, N.G.Brusova/Moscow/Dropha/2000.
“Ecology. School text-book”/ S.A.Bogolubov / Moscow/Znanie/ 1999.
“Basis of ecology 10-11”/ N.M.Chernova / Moscow/Dropha/2001
№19 слайд
Содержание слайда: Thank you for attention!
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