Công ty Cổ phần Mạng giáo dục Bạch Kim - 27 Huỳnh Thúc Kháng, Đống Đa, Hà Nội
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Unit 07. Pollution Lesson 5. Skills 1 I. WRAM-UP
Objectives:
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. Do you know?:
What are the main types of water pollution? type 1: surface waters pollution type 2: groundwater pollution Let`s see a video:
II. VOCABULARY
- Vocabulary 1:
groundwater (n) ˈɡroundˌwôdər/: Vocabulary water held underground in the soil or in pores and crevices in rock. Example: It should have flowed into the groundwater container. - Vocabulary 2:
pesticide (n) ˈpestəˌsīd/: Vocabulary a substance used for destroying insects or other organisms harmful to cultivated plants or to animals. Example: A farmer is spraying his crops with pesticide. - Vocabulary 3:
herbicide (n) ˈ(h)ərbəˌsīd/: Vocabulary a substance that is toxic to plants and is used to destroy unwanted vegetation. Example: You need to spray the weeds with herbicide. - Vocabulary 4:
point source (n): Vocabulary A source, especially of pollution or radiation, occupying a very small area and having a concentrated output. - Vocabulary 5:
non- point source (n) /ˌnänˈpoint ˌsôrs/: Vocabulary a source of pollution that issues from widely distributed or pervasive environmental elements. III. READING
Reading 1:
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. 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:
The differences between two pictures. The ducks are white They`re going to the lake. There aren`t any factories near the lake. The lake water is clean. The ducks are balck They`re going to the lake. There are some factories near the lake. The lake water is black. - What do the pictures tell you?:
What do the pictures tell you? 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. 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. 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:

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.
IV. SPEAKING
Speaking 1:
4. Work in groups and discuss the solutions to water pollution. Make notes of your answers. - 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. - Definition:
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:
Water pollution: Effects: - Human: ____________________________ - Animals: _________________________ - Plants: ____________________________ outbreak cholera, even die the death of aquatic animals kill aquatic plants - Causes:
Water pollution: Causes: - Point source pollutants: _____________ ___________________________________ - Point source pollutants: _____________ ____________________________________ industrial waste , sewage, pesticides, herbicides from storm water and the atmosphere - Solutions:
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. 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:
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: