Презентация. Загрязнение окружающей среды.
презентация к уроку по английскому языку (9 класс) на тему

APPEAL
Our planet is in danger! - Наша планета в опасности!The ozone layer is thinning.- Озоновый слой истощается.Acid rains are destroying forests.- Кислотные дожди разрушают леса. Rivers and oceans are polluted.- Реки и океаны загрязнены.Many species of fish are disappearing.- Многие виды рыб исчезают.The warming of the atmosphere may threaten the world with hunger. –Всеобщее потепление может угрожать миру голодом. A single country can’t solve these problems.- Государства поодиночке не могут решить эти глобальные проблемы.
Three quarters of the Earth’s surface is water.
1/4 - land.
1/8 - habitable.
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Fish in danger.
Let’s speak about one of the most important problems – Water pollution. It’s very urgent nowadays.The result of it is that some species of fish disappear.
Many fish are dying in the sea. Catches have fallen by more that 90 % in last year The giant beluga has disappeared.
Another reason of fish disappearing is poaching. Experts say so many sturgeon are being poached that next year could be the last caviar producing season for many years.
The world wildlife fund put sturgeon on the list of extinct species last year.
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Radiation from the sun
The Earth receives short-wave radiation from the sun, one-third of which is reflected back out to space. The remaining radiation is absorbed by the surface and heats up the planet.
Global warming
Nowadays the air surrounding the earth has become much warmer because the heat can’t go back into space. Problems arise when greenhouse gases such as carbon dioxide and methane increase due to human activities and the earth gets hotter. In one way or another the problem of global warning affect the lives of everyone on the planet.
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is also a very ecological problem. The ozone layer
became 2 per cent thinner.
The ozone layer is being damaged by gases which are
called CFCs (chloro
-
fluoro
-
carbons).
One of the effects of the ozone depletion may be
genetic mutation.
Different countries began to unit their efforts to stop
the ozone layer from disappearing and we care
about environment and we are concerned about
ozone depletion.
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Flood наводнениеOzone depletion истощение озонового слояAcid rains кислотные дождиGreenhouse effect парниковый эффектSpecies вид, родHarmful substances вредные веществаDisaster катастрофаConsequence последствиеNuclear power stations атомные станцииThe polluted water загрязненная водаTo emit выбрасыватьEmission выброс
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