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«Major ecological problems»
Урок английского языка в 10 классе по теме
"Ecologicalproblems"
урок речевой воспитание экология
Цель урока - развитие навыков и умений всех видов речевой деятельности: умение работать с новой лексикой, аудировать незнакомый текст с извлечением основной информации, обсуждать проблемы по данной теме в монологических высказываниях.
Задачи урока:
1. Развивающие : Развивать способности к осмысленности восприятия и к распределению внимания, к слуховой дифференциации, к логическому изложению содержания высказывания, к формулированию выводов из прочитанного и услышанного, развивать способности к коммуникабельности как явному или неявному выражению своего отношения к окружающей среде и экологии, развивать способности к самостоятельному труду и самооценке, развивать способности к вербализации, т.е. словесному выражению услышанного.
2. Образовательные: обобщить и систематизировать знания учащихся по теме «Экология», усвоение учащимися знаний по данной теме, формировать навыки употребления слов по теме «Экология».
3. Воспитательные. Формирование гражданской позиции и чувства ответственности за сопричастность к проблемам экологии и окружающей среды, воспитание потребности приобщения к глобальным и местным проблемам, чувства любви и бережного отношения к окружающей среде. Развивать у детей познавательную активность на уроке.
Тип урока: совершенствование знаний, умений и навыков, полученных ранее, и целевого применения усвоенного материала.
I. Организационный момент и приветствие.Сообщение целей урока. (2 min)
Teacher. Good morning, children! Good morning, dear guests! Well? Let’s start our work.
So, the theme of our lesson is “Ecology”. What is ecology?
P: Ecology is a science about nature and relations of men and the natural world.
Today, our planet is in serious danger. Acid rains, global warming, air and water pollution, overpopulation are the problems that threaten human life on Earth.
Who is to blame for the disaster? The answer is simple: all of us. I would advise everyone to think about this problem. Together we can find a solution!
II. Pечеваяразминка. (2 min.)
T: Now I`d like you to answer some questions:
What planet do we live on?
What ecological problems can you name?
Can you name one endangered species?
What is older: nature or mankind?
III. Аудирование, просмотр видеоролика. (10 min.)
T: Now you will watch the video “10 major problems of environment”.
After that choose one problem and tell your opinion about it.
1. pollution
2. global warming
3. overpopulation
4. natural resourse depletion
5. waste disposal
6. climate change
7. loss of biodiversity
8. deforestation
9. urban sprawl
10. ozone layer depletion
IV. Актуализация ранее изученной лексики. (5 min.)
1. Match the two columns to get a correct sentence.
Acid Rain
– a gas that makes up about 21% of the earth`s atmosphere, all the creatures living on the earth need it to survive.
Habitat
– the situation when animals and plants die out and are gone from the Earth forever (like Dinosaurs).
Oxygen
- the situation when harmful gases from cars and power stations come into the air and then fall back to the earth with rain and snow.
Ozone Layer
– tropical evergreen woodlands, they receive a lot of rain every year
Rainforests
– an area where an animal or plant lives, gets food and water.
Extinction
– animals and plants in danger to become extinct.
Endangered Species
– a layer of gas high in the sky which protects us from the ultraviolet radiation of the sun.
(if/whenclauses – условные предложения первого типа)
Teacher: When we speak about suggestions and solutions to problems we normally use conditionals type 1 in such sentences. And now I want you to revise how to form it?
P: We use “if + present simple + will + bare infinitive”
1. Match the two columns to get a correct sentence.
1. If nuclear power stations go wrong,
1. we won't be protected from ultraviolet radiation.
2. If people stay in direct sunlight for a long time,
2. they will clean air again.
3. If there is no ozone layer in the atmosphere,
3. they will cause nuclear pollution.
4. If people use filters at nuclear power stations,
4. they will get ultraviolet radiation from the sun.
5. If factories dump their waste in the rivers,
5. they will solve the environmental problems.
6. If people want to survive,
6. they will become dirty and poisoned.
2. Open the brackets to make the sentences completed. Write the sentences down.
1. If we (take) care of our planet, it won't be in danger.
2. If people don't waste water, there (not be) serious water shortages in many parts of the world.
3. I will cycle to work, if I (not have) a car,
4. If factories (not pour) chemicals into rivers, they won't be polluted.
5. If people don't leave rubbish on beaches, they (not be) dirty.
VII. Совершенствование навыков устной речи по теме
T: Here are some environmental problems: water pollution, ozone holes, disposing of the garbage. Take cards with words and phrases, please. Look through the list of words. I’ll give you about a minute to make up a short topic, these words will help you to do it.
Words on the topics:
Endangered species
endangered species
to disappear
to kill animals
to destroys their habitats
to be in danger
plant
badly damaged
be able to recover to be cut down
to help to control the world's weather
to produce the oxygen
(Suggested answer)
Many endangered species — fish, reptiles, insects, birds, mammals — may disappear. The reason is that Man kills animals and destroys their habitats. It is not just animals that are in danger. So are plants. A lot of forests are so badly damaged that they will hardly be able to recover. When the trees are cut down, the forest becomes a desert. The huge forests help to control the world's weather and to produce much of the oxygen in the air.
2. the greenhouse effect
sunlight
heat
to warm the atmosphere
to go back into space
to become warmer
winter and summer temperatures
to produce
carbon dioxide
to work like glass in a greenhouse
to get in/to get out
(Suggested answer)
Have you ever heard about the greenhouse effect? It works like this: sunlight gives us heat. Some of the heat warms the atmosphere, and some of the heat goes back into space. Nowadays the air surrounding the earth has become much warmer because the heat can't go back into space. That's why winter and summer temperatures in many places have become higher.
During the last 100 years people have produced a lot of carbon dioxide. This gas in the atmosphere works like glass in a greenhouse. It lets heat get in, but it doesn't let much heat get out. So the atmosphere becomes warmer.
3. Water pollution:
ocean, sea, rivers and lakes
to be used as a dump
The Pacific Ocean
To suffer
nuclear pollution
to test nuclear weapons
industrial and nuclear waste
to poison
"nuclear-poisoned" fish
enough oxygen
to leave their habitats
can die
to happen
factories and plants
to pour into
(Suggested answer)
There is no ocean or sea which is not used as a dump. The Pacific Ocean, especially, has suffered from nuclear pollution because the French Government tests nuclear weapons there. Many seas are used for dumping industrial and nuclear waste. This poisons and kills fish and sea animals. "Nuclear-poisoned" fish can be eaten by people.
Many rivers and lakes are poisoned too. Fish and reptiles can't live in them. There is not enough oxygen in the water. In such places all the birds leave their habitats and many plants die. If people drink this water they can die too. It happens so because factories and plants produce a lot of waste and pour it into rivers. So they poison the water.
4. the ozone layer:
to spend too much time
direct sunlight
ultraviolet radiation
to cause skin cancer
to protect
holes in the ozone layer
to get to the earth
scientist
the result of
air pollution
(Suggested answer)
More and more often people are told not to spend too much time in direct sunlight, because ultraviolet radiation from the sun can cause skin cancer. Normally the ozone layer in the atmosphere protects us from such radiation, but if there are holes in the ozone layer ultraviolet radiation can get to the earth. Many scientists think that these holes are the result of air pollution.
5. air pollution:
to release sulfates
mix with the clouds
acid rains
to harm
creature
nuclear power stations
to go wrong
to cause nuclear pollution
nuclear pollution
cannot be seen
can be terrible.
to make air clean
filter
cars and buses.
(Suggested answer)
Air pollution is also a very serious problem. Because many factories release sulfates into the air. When the sulfates mix with the clouds, acid rains fall and harm all living creatures. Nuclear power stations can go wrong and cause nuclear pollution. Nuclear pollution cannot be seen but its effects can be terrible.
To make air clean again we need good filters at nuclear power stations, at factories and plants and also in cars and buses.
T: Thank you. Well done. To sum up our work I suggest you to make a poster. Express your thoughts, wishes or suggestions how to protect nature on our planet.
IX. Подведение итогов урока. (2 min)
T: Dear friends, our lesson is almost over. You’ve got marks and I think you are satisfied, you were very active, attentive and bright. I enjoyed your work at the lesson.
Hometask: prepare projects about ecological organizations.
