Bài giảng Tiếng Anh Lớp 7 - Unit 10: Sources of energy - Lesson 5: Skills 1 - Ngo Thi Thanh Huyen

Nội dung text: Bài giảng Tiếng Anh Lớp 7 - Unit 10: Sources of energy - Lesson 5: Skills 1 - Ngo Thi Thanh Huyen

1. Welcome to our class Trainee: Ngo Thi Thanh Huyen
2. 1. What are the main sources of energy in Viet Nam ? 2. What type of energy sources will be used in the future ?
3. Welcome to our class Unit 10 : Sources of energy Lesson 5 : Skills 1 Trainee: Ngo Thi Thanh Huyen
4. ❖ Reading. 1. Professor Galton is preparing a speech about renewable and non-renewable energy.
5. ❖ Answer the question 1. How many types of energy sources are mentioned in the text ? What are they ? Two. They are renewable and non-renewable 2. 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. 3. Why do you think the wind and the sun are called alternative sources of energy ? Because they are natural sources of energy and we use them instead of non-renewable sources. 4. What types of energy does Viet Nam use most ? We use non-renewable sources of energy the most but we are increasingly using hydro power. 5. What does the professor think Viet nam will use more in the future ? He thinks Vietnam will use the wind and the sun as alternative sources of energy in the future.
6. ❖ Speaking 4: Work in pairs. Ask and answer questions about the advantages and disadvantages of each type of energy sources.
7. SOURCES OF ENERGY Advantage(s) Disadvantage(s) Wind Abundant, safe Not always, available Water/ Hydro Clean and safe Expensive, not available Renewable, clean, Solar abundant and safe Expensive Renewable, clean, Biogas abundant and safe Harmful, polluting Renewable, clean, and Nuclear safe Expensive, dangerous Harmful, exhaustible, Coal/oil/natural gas Abundant polluting A: What type of energy is oil? B: It is a non-renewable sources 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.
8. 5. Talk about the advantages and disadvantages of each type of energy sources. SOURCES OF ENERGY Advantage(s) Disadvantage(s) Wind Abundant, safe Not always, available Water/ Hydro Clean and safe Expensive, not available Renewable, clean, Solar abundant and safe Expensive Renewable, clean, Biogas abundant and safe Harmful, polluting Renewable, clean, and Nuclear safe Expensive, dangerous Harmful, exhaustible, Coal/oil/natural gas Abundant polluting Example: Hydro power is a renewable sources of energy because it comes from water. It is cheap and plentiful. Unfortunately, dams can only be built in certain areas.
9. Home work ● Learn by heart new words and pharases, do exercises in workbook. ● Prepare next lesson, Unit 10 Lesson 6: Skills 2.
10. Thanks for your attention Good bye. See you again !