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Unit 07. Pollution. Lesson 5. Skills 1

Tham khảo cùng nội dung: Bài giảng, Giáo án, E-learning, Bài mẫu, Sách giáo khoa, ...
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Người gửi: Phạm Hoàng Minh Nhật (trang riêng)
Ngày gửi: 06h:34' 19-01-2018
Dung lượng: 20.8 MB
Số lượt tải: 512
Số lượt thích: 0 người
UNIT 07. POLLUTION. LESSON 5. SKILLS 1
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Unit 07. Pollution
Lesson 5. Skills 1
I. WRAM-UP
Objectives
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Objectives
- By the end of the lesson, Ss will:
Read for general and specific information about water pollution. Talk about the cause and effects of water pollution as well as ways to reduce it. Develop Ss’ reading and speaking skills.
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Do you know?
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What are the main types of water pollution?
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type 1: surface waters pollution
type 2: groundwater pollution
Let's see a video
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II. VOCABULARY
- Vocabulary 1
groundwater (n) ˈɡroundw :tə/ nước ngầm
Vocabulary
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- Vocabulary 2
pesticide (n) /´pesti¸said/:
Vocabulary
a substance used for destroying insects or other organisms harmful to cultivated plants or to animals. Thuốc diệt loài gây hại, thuốc trừ sâu
Example:
A farmer is spraying his crops with pesticide.
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- Vocabulary 3
herbicide (n) /´hə:bi¸said/ˈ
Vocabulary
a substance that is toxic to plants and is used to destroy unwanted vegetation.
Example:
You need to spray the weeds with herbicide.
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- Vocabulary 4
- Vocabulary 5
Cholera:(n) /´kɔlərə/
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Bệnh tả (Cholera) là một bệnh nhiễm trùng đường ruột do vi trùng Vibrio cholerae gây ra, độc tố của vi trùng này gây tiêu chảy nặng kèm theo mất nước và có thể dẫn đến tử vong trong một số trường hợp.
III. READING
Reading 1
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1.
Work in pairs. One of you looks at picture A, and the other looks at pictures B on page 15. Ask each other questions to find out the differences between your pictures.
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A:
Are there five ducks in your picture?
B:
Yes, they are. Are the ducks black in your picture?
A:
No, they aren't. They are white.
B:
Are they going to the lake?
A:
Yes, they are.
B:
Are there any the factories near the lake in your picture?
A:
No, there aren't.
B:
How does the lake look?
A:
Oh, it is clean. And the lake in your picture?
B:
The lake water is black
- Suggested differences
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The differences between two pictures.
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The ducks are balck They're going from the lake. There are some factories near the lake. The lake water is dirty/ black.
The ducks are white They're going to the lake. There aren't any factories near the lake. The lake water is clean.
- What do the pictures tell you?
What do the pictures tell you?
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The pictures tell about the water pollution and its causes, effects.
Reading 2
2.
Mi and Nick have decided to give a presentation on water pollution to the class. Read what they have prepared and answer the question.
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Water pollution is the contamination of bodies of water such as lakes, rivers, oceans and groundwater (the water beneath the Earth's surface). It is one of the most serious types of pollution.
Water pollution can have many different causes. Factories dump industrial waste into lakes and rivers. Sewage from households is another cause. Farms using pesticides to kill insects and herbicides to kill weeds can also lead to water pollution. These factors cause 'point source' pollution while pollutants from storm water and the atmosphere result in 'non-point source' pollution.
- Reading 2 (cont)
2.
Mi and Nick have decided to give a presentation on water pollution to the class. Read what they have prepared and answer the question.
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Water pollution can have damatic effects. In many poor nations, there are frequent outbreaks of cholera and other diseases because of people drinking untreated water. Humans can even die if they drink contamianted water. Polluted water also causes the death of aquatic animals such as fish, carbs, or birds. Other animals eat these dead animals and may also get sick. In addition, herbicides in water can kill aquatic plants and cause further damage to the environment. So what should we do to reduce water pollution?
- Answer the questions
Bài tập kéo thả chữ
1. What does the second paragraph tell you about? latex(rarr) ||It tells about the causes of water pollution.|| 2. What does the third paragraph tell you about? latex(rarr) ||It tells about the effects of water pollution.|| 3. What is groundwater? latex(rarr) ||It's water beneath the Earth's surface.|| 4. What are point source pollutants? latex(rarr) ||They are industrial waste, sewage, pesticides and herbicides|| 5. What are non-point source pollutants? latex(rarr) ||They are pollutants from storm water and the atmosphere.|| 6. Why do people use herbicides? latex(rarr) ||They use herbicides to kill weeds.||
Answer the questions.
Reading 3
3.
Read the text again and complete the notes about the effects of water pollution. Fill each blanks with no more than three words.
Bài tập kéo thả chữ
1. If the drinking water is untreated, an outbreak of ||cholera|| may happen. 2. People drinking contaminated water may ||die||. 3. Fish, crabs or birds, may also die because of ||pollution water||. 4. Other animals may become ill if they eat the ||dead|| animals 5. Herbicides kill both weeds and ||aquatic plants||.
IV. SPEAKING
Speaking 1
4.
Work in groups and discuss the solutions to water pollution. Make notes of your answers.
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- Suggested answer
Dealing with water pollution is something that everyone. Here are a few things you can do to help:
- Never throw rubbish away anyhow. Always look for the correct waste bin. If there is none around, please take it home and put it in your trash can. This includes places like the beach, riverside and water bodies. - Use water wisely. Do not keep the tap running when not in use. Also, you can reduce the amount of water you use in washing and bathing. If we all do this, we can significantly prevent water shortages and reduce the amount of dirty water that needs treatment. - Do not throw chemicals, oils, paints and medicines down the sink drain, or the toilet. - Buy more environmentally safe cleaning liquids for use at home and other public places. They are less dangerous to the environment. - If you use chemicals and pesticides for your gardens and farms, be mindful not to overuse pesticides and fertilizers. This will reduce runoffs of the chemical into nearby water sources.
Speaking 2
5.
Now complete the diagram of water pollution. Use the information from the next for the causes and effects and your group's ideas for the solutions.
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- Definition
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Water pollution:
Definition:
It means one or more substances have built up in water to such an extent that they cause problems for animals or people
- Effects
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Water pollution:
Effects:
- Human: ____________________________
- Animals: _________________________
- Plants: ____________________________
outbreak cholera, even die
the death of aquatic animals
kill aquatic plants
- Causes
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Water pollution:
Causes:
- Point source pollutants: _____________ ___________________________________
- Point source pollutants: _____________ ____________________________________
industrial waste ,
sewage, pesticides, herbicides
from storm water
and the atmosphere
- Solutions
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Water pollution:
Solutions:
- Never throw rubbish away anyhow.
- Use water wisely. Do not keep the tap running when not in use
- Do not throw chemicals, oils, paints and medicines down the sink drain, or the toilet.
- Governments have very strict laws that help minimize water pollution.
Speaking 3
6.
Make a presentation about water pollution based on the diagram.
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Suggested answer
Water pollution means one or more substances have built up in water to such an extent that they cause problems for animals or people. There are also two different ways in which pollution can occur. If pollution comes from a single location, such as industrial waste into lakes and rivers, sewage from households, pesticides and herbicides, it is known as point-source pollution. While pollutants from storm water and the atmosphere result in 'non-point source' pollution.
Water pollution can outbreak of cholera and other diseases, even die in human. It also causes the death of aquatic animals and plants and further damage to the environment.
Dealing with water pollution is something that everyone. With the laws, governments have very strict laws that help minimize water pollution. Making people aware of the problem is the first step to solving it.
V. THE END
Homework
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Homework
Learn by heart all the new words. Prepare for next lesson (find the meaning of the new words in the next lesson ) Do Reading again Do exercise in the workbook
Goodbye
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