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Unit 6 Lesson 2
How the environment is polluted
Objectives: By the end of the lesson you will have
• read two passages about environmental pollution
• discussed some pollution-related questions
• designed a questionnaire
A Highway construction, mills and factories, and use of motor vehicles are signs of development. But they can sometimes have negative effects on our environment. Work in pairs and discuss what the following picture shows.
Picture
How is the quality of air in your area? Write 3-5 adjectives to describe it.
B Now read the following passage to learn how air gets polluted.
The world is producing millions of tons of domestic rubbish and toxic industrial waste each year, and it is becoming increasingly difficult to find suitable locations to get rid of all the refuse. The disposal of various kinds of waste is seriously polluting the environment. We know that air is an important element of our •environment and our air is polluted by smoke. Man makes fires to cook food, make bricks, melt tar for road construction and to do many other things. Fires create' smoke and pollute the air. Railway engines and powerhouses create smoke by burning coal and oil. Mills and factories also belch a lot of smoke. Buses, trucks and cars use petrol and diesel oil. These too emit smoke. All these kinds of smoke pollute the air.
Now discuss in small groups the following questions.
1 Why is it difficult to dispose of waste?
2 In how many ways can smoke be created?
3 What do you think is the main cause of air pollution in the area where you live?
C Water pollution is another problem the world faces. Now read another passage to see how water is polluted.
Water, another vital clement of the environment, is also polluted in different Ways. Man pollutes water by throwing waste into it. Farmers use chemical fertilizers and insecticides in their fields. When rain and floods wash away some of these chemicals, they get mixed with water in rivers, canals and ponds. Mills and factories also throw their poisonous chemicals and waste products into rivers and canals and thus pollute the water. Water vehicles also pollute rivers by dumping oil, food waste and human waste into them. Insanitary latrines and unsafe drains standing on river and canal banks arc also responsible for further pollution. Thus water is contaminated by various kinds of waste and filth.
Now discuss the following questions hi small groups.
1 How do mills and factories pollute water?
2 How is water polluted in your locality?
3 How can we minimise water pollution?
D Complete the following passage by using suitable words in the gaps.
Air and water are two of the important Dash of the environment. These elements are often Dash in various ways. Air is polluted by Dash, and water is polluted by different kinds of Dash and filth. If we want to live a Dash life, we should Dash the pollution of the environment. Total Dash prevention may be Dash but we can certainly Dash pollution by raising Dash among the people.
E In groups prepare a questionnaire to find out what kind of environmental problems there are in your locality.
Focus :
Skills.
Discussing,
reading for comprehension, writing a questionnaire. Functions.
Discussing state of things, gap-filling, asking, questions. making a questionnaire. Grammar/Structure.
Simple present tense, passive voice. Vocabulary.
refuse, insecticides, filth, insanitary, belch, emit, get rid of, contaminate.
This text will be replaced
Unit 6 Lesson 2
How the environment is polluted
Objectives: By the end of the lesson you will have
• read two passages about environmental pollution
• discussed some pollution-related questions
• designed a questionnaire
A Highway construction, mills and factories, and use of motor vehicles are signs of development. But they can sometimes have negative effects on our environment. Work in pairs and discuss what the following picture shows.
Picture
How is the quality of air in your area? Write 3-5 adjectives to describe it.
B Now read the following passage to learn how air gets polluted.
The world is producing millions of tons of domestic rubbish and toxic industrial waste each year, and it is becoming increasingly difficult to find suitable locations to get rid of all the refuse. The disposal of various kinds of waste is seriously polluting the environment. We know that air is an important element of our •environment and our air is polluted by smoke. Man makes fires to cook food, make bricks, melt tar for road construction and to do many other things. Fires create' smoke and pollute the air. Railway engines and powerhouses create smoke by burning coal and oil. Mills and factories also belch a lot of smoke. Buses, trucks and cars use petrol and diesel oil. These too emit smoke. All these kinds of smoke pollute the air.
Now discuss in small groups the following questions.
1 Why is it difficult to dispose of waste?
2 In how many ways can smoke be created?
3 What do you think is the main cause of air pollution in the area where you live?
C Water pollution is another problem the world faces. Now read another passage to see how water is polluted.
Water, another vital clement of the environment, is also polluted in different Ways. Man pollutes water by throwing waste into it. Farmers use chemical fertilizers and insecticides in their fields. When rain and floods wash away some of these chemicals, they get mixed with water in rivers, canals and ponds. Mills and factories also throw their poisonous chemicals and waste products into rivers and canals and thus pollute the water. Water vehicles also pollute rivers by dumping oil, food waste and human waste into them. Insanitary latrines and unsafe drains standing on river and canal banks arc also responsible for further pollution. Thus water is contaminated by various kinds of waste and filth.
Now discuss the following questions hi small groups.
1 How do mills and factories pollute water?
2 How is water polluted in your locality?
3 How can we minimise water pollution?
D Complete the following passage by using suitable words in the gaps.
Air and water are two of the important Dash of the environment. These elements are often Dash in various ways. Air is polluted by Dash, and water is polluted by different kinds of Dash and filth. If we want to live a Dash life, we should Dash the pollution of the environment. Total Dash prevention may be Dash but we can certainly Dash pollution by raising Dash among the people.
E In groups prepare a questionnaire to find out what kind of environmental problems there are in your locality.
Focus :
Skills.
Discussing,
reading for comprehension, writing a questionnaire. Functions.
Discussing state of things, gap-filling, asking, questions. making a questionnaire. Grammar/Structure.
Simple present tense, passive voice. Vocabulary.
refuse, insecticides, filth, insanitary, belch, emit, get rid of, contaminate.