Bài giảng Tiếng Anh Lớp 7 - Unit 10: Sources of Energy - Period 84: Skills 1

Nội dung text: Bài giảng Tiếng Anh Lớp 7 - Unit 10: Sources of Energy - Period 84: Skills 1

1. WELCOME TO OUR CLASS TODAY English 7
2. Discuss 1. What are the main sources of energy in Vietnam? 2. What type of energy sources will be used in the future?
3. Saturday, March 23rd, 2019 Unit 10. Sources of energy Period 84: Skills 1
4. 1. Vocabulary - Fossil fuel (n) nhiên liệu hóa thạch - Alternative = replace thay thế - Turn turbine làm quay tua bin - Convert into biến đổi - Generate phát ra - Great deal of = a lot of nhiều, rất nhiều - Fortunately (adv) >< unfortunately may mắn rủi thay
5. *Check vocavulary: - Fossil fuel nhiên liệu hóa thạch - Alternative = replace thay thế - Turn turbine làm quay tua bin - Convert into biến đổi - Generate phát ra - Great deal of = a lot of nhiều, rất nhiều - Fortunately may mắn
6. Read the text carefully in 2 mins.
7. 2. Read the text and check your ideas. 1. What are the main sources of energy in Viet Nam? 2, What types of energy sources will be used in the future?
8. Dear guests, I’d like to talk to you today about renewable and non- renewable energy. Fossil fuels are non-renewable energy sources. They include oil, coal, and natural gas. They can be used to create energy, generate electricity, or drive big machinery. Unfortunately, they are harmful to the environment. Viet Nam still relies mostly on non-renewable energy sources, however, hydro power is increasingly used here too. Hydro and nuclear power can generate a great deal of energy. They are renewable and plentiful. However, hydro power is limited because dams cannot be built in certain areas. Nuclear power can provide enough electricity for the world’s needs, but it is dangerous. The sun and the wind are other alternative sources of energy. The wind turns turbines to make electricity. Solar power can be converted into electricity. It can be used to heat or cool our houses. Although there are some disadvantages, these alternative energy sources can offer abundant amounts of clean, safe electricity. They will be valued more and more in the future in Viet Nam.
9. 3a. Match the verbs with the nouns 1. CREATE A. MACHINERY 2. DRIVE B. TURBINES 3. GENERATE C. ENERGY 4. TURN D. HOUSES 5. HEAT E. ELECTRICITY
10. 3b.Answer the questions. 1.How many types of energy sources are mentioned in the text? What are they? 2.What are the disadvantages of hydro and nuclear power? 3.Why do you think the wind and the sun are called alternative sources of energy? 4.What types of energy does Vienam use most? 5. What does the professor think VietNam will use more in the future
11. How many types of energy sources are mentioned in the text? What are they? Two, they are renewable and non-renewable.
12. What are the disadvantages of hydro and nuclear power? Hydro power is limited because dams can not be built in certain areas. Nuclear power is dangerous.
13. Why do you think the wind and the sun are called alternative sources of energy? Because they are natural sources of power and we use them instead of non-renewable sources.
14. What types of energy does Vienam use most? We use non-renewable sources of energy the most but we are increasingly using hydro power.
15. What does the professor think Vietnam will use more in the future? He thinks Vietnam will use the wind and the sun in the furture.
16. 4. Ask and answer questions about the advantages and disadvantages of each type of energy source. Example : A: What type of energy is oil? B: It is non-renewable source of energy, because it cannot easily be replaced. A: What are its advantages and disadvantages? B: It can be used to drive machinery, but it also pollutes the environment.
17. Example: A: What type of energy is oil? B: It is non-renewable source of energy, because it can not easily be replaced. A: What are its advantages and disadvantages? B: It can be used to power machinery, but it also pollutes the environment.
18. Sources of Types of Advangtage(s) Disadvantage(s) energy energy create energy oil/ coal/ harmful to the non-renewable generate electricity natural gas environment drive machinery hydro renewable can not build dams generate a great deal of energy nuclear renewable dangerous converted into electricity, solar renewable not available heat or coal the houses wind renewable make electricity not available
19. 5. Talk about the advantages and disadvantages of each type of energy sources. Sources of Types of energy Advangtage(s) Disadvantage(s) energy create energy oil/ coal/ harmful to the non-renewable generate electricity natural gas environment drive machinery hydro renewable generate a great deal of hydro renewable generate a great deal of can not build damsdams energy nuclear renewable energy dangerous converted into electricity, solar renewable not available heat or coal the houses wind renewable make electricity not available
20. Hydro power is a renewable source of energy because it comes from water. It is cheap and plentiful. Unfortunately, dams can only be built in certain areas.
21. Home work 1. Learn by heart new words 2. Complete Ex.3b in note book 3. Write a short passage for Ex.5