Урок английского языка в 10-м классе по теме "Охраняем окружающую среду"

Цели урока:

• образовательная: систематизировать лексический материал по теме «Охрана окружающей среды»; научить обсуждать проблемы в группе, комментировать услышанное, высказывать свою точку зрения относительно проблем экологии;
• воспитательная: содействовать формированию у учащихся экологического мышления, убедить учащихся в необходимости бережного отношения к нашей планете.

Оборудование: интерактивная доска, рисунки и плакаты, иллюстрирующие проблемы экологии.

Ход урока

Вступительное слово учителя:

There are a lot of holidays on our planet, but today I’d like to mention April, 22.It’s a special day all over the world. On that day the inhabitants of the Earth celebrate Earth Day. This day is the day when many people show that they can care for our fragile planet. It’s the day for the people to learn what they can do to preserve the planet. The first Earth Day was held in the USA in April 1970.It brought the eco-bible into life. Here are some words on the blackboard, look at them and give their definitions in English.

Ecology
P1: Study of plants and living things in relation to their environment.

Environment
P2: All the surroundings of an organism, including other living things, climate, air, water and soil.

Acid rain
P3: When harmful gases from cars and factories released into the air fall back to the Earth with rain or snow.

Rainforests
P4: Evergreen woodlands that receive at least 100 inches of rain a year, home to more than half of the world’s plants and animals.

Habitat
P5: An area that provides animals and plants with food, water, shelter.

Conservation
P6: The wise use of the environment.

T: Do you agree that people live in greater harmony with the environment today?

P1: I don’t think so. The range of environmental problems is rather wide nowadays.

The most important of them are:

• the growth of pollution in it’s many forms (air pollution, water pollution, land pollution);
• shortage of natural resources;
• destruction of wildlife;
• the growth of population;
• traffic noise;
• acid rains;
• the greenhouse effect;
• depletion of the ozone layer
• radiation;
• deforestation and desertification;
• health and chemical safety;
• global warming.

T: I agree with you. And now look at this apple. Imagine it’s our planet. I’m cutting it into four pieces. Three quarters of the Earth surface is water and only one quarter is land. ( Режется ¼ оставшаяся часть пополам) One half of it is habitable. The rest of the land is the deserts, mountains, frozen ice-caps and other places where people cannot live.( один кусочек режется на 4 части) Only 1/32 gives us food and shelter. Less than 1% of water is drinkable.

So we must take care of our planet for ourselves and future generations.

P2: You are quite right. Our planet is so beautiful. A lot of Russian painters showed the power and beauty of nature in his canvases. Let’s take Ivan Shishkin, for example. ( На доске появляется картина Шишкина « Рожь») Shishkin’s most important canvases are «Rye»,where he shows the beauty of Russian nature and fruitfulness of peasant labour; «Morning in the Pine Wood» (появляется на интерактивной доске), where he shows the moment when the first rays of the sun are breaking through and the night mist is lifting. The forest is waking up from its sleep. His other canvases-«Pipe Wood», «Windfallen Trees», «The Oaks»-show the beauty and power of nature. Can we allow to die such beauty?

P3: Surely not! But the problem of deforestation is alarming. Every year over 100,000sq.km of forests is so badly damaged that it is very hard for it to recover. Deforestation can cause vanishing of all species on earth in the next 25 years.

T: What is killing the trees?

P4: It is probably air pollution and acid rains. (На доске иллюстрации последствий кислотных дождей) When acid rain falls into lakes, it kills the plants and animals that live in the water. That is why the fish are dying. Some kinds of trees cannot live in the soil that is very acidic.

P5: To my mind, global warming is the most important environmental problem because it may extend the range of vectors conveying infectious diseases such as malaria.

P6: Nothing of the kind! I think, it is radiation. The most horrible ecological disaster befell Belarus and its people as the result of the Chernobyl tragedy in April 1986.Great damage has been done to the republic’s agriculture, forests and people’s health. The consequences of this explosion at the atomic power-station have been truly tragic for the Belarusian nation.

P7: I’d like to tell you that litter pollutes our environment greatly. Do you know how long the litter lasts? Look at the table: