Welcome to my lesson !

1. Welcome to my lesson !

2. UNIT 11: SOURCES OF ENERGY Speaking Period:65

3. Hydroelectric dam Water Power

4. Windmill Wind power

5. Solar energy Solar panels

6. Nuclear Power Nuclear reactor

7. Geothermal heat

8. Vocabulary reactor /ri:'æktə/ ( n) : lò phản ứng hạn chế, có giới hạn limited /'limitid/ ( adj ) : unlimited /ʌn'limitid/ (adj): không giới hạn renewable /ri'nju:əbl/ (adj ) : có thể thay thế non-renewable /,nɔn 'ri'nju:əbl/ (adj ): không thể thay thế

9. Task 1. The following statements list some advantages and disadvantages of various sources of energy. Read and tick () the appropriate box A ( for the advantages ) orD (for the disadvantages ), then compare the results with partner’s.         

10. Task 2: Work in pairs. Talk with your friend about the advantages and disadvantages of using each alternative sources of energy , using the suggestions from Task 1. Why do you think so? I think that wind power can be an alternative source of energy.......

11. It can be dangerous It is unlimited It is available It is only available in some places It is only possible during the day time It is not only plentiful and infinite but also clean and safe It is clean and unlimited If the wind doenn’t blow,there is no wind no energy. It is expensive to built a dam for hydroelectricity It is clean and unlimited

12. Example : A: I think that can be an alternative sources of energy. B: Why do you think so? A: Because our major sources of energy are running out while wind power (1) the wind is abundant and unlimited. (2) B: I know it is also clean and safe to the environment. (3) However, it is not available when there is no wind. (4)

13. A: I think that _______(1)___________ can be an alternative source of energy. B: Why do you think so? A: Because our major sources of energy are running out while __________(2)____________ . B: I know ___________(3)____________. However, _________(4)_____________ . (1): solar energy (2): solar energy is plentiful and infinite. (3): It is also clean and safe to the enviroment. (4): It is only possible during the day time.

14. A: I think that solar energy can be an alternative sources of energy. B: Why do you think so? A: Because our major sources of energy are running out while the solar energy is plentiful and infinite. B: I know it is also clean and safe to the environment. However, it is only possible during the day time.

15. A: I think that _______(1)___________ can be an alternative source of energy. B: Why do you think so? A: Because our major sources of energy are running out while __________(2)____________ . B: However, _________(3)_____________ . (1): nuclear power (2): nuclear power is unlimited (3): It can be very dangerous. A nuclear reactor releases radiation which is harmful to the environment.

16. A: I think that _______(1)___________ can be an alternative source of energy. B: Why do you think so? A: Because our major sources of energy are running out while __________(2)____________ . B: I know ___________(3)__________________ . However, _________(4)_____________ . (1): water power (2): water is unlimited (3): It also provides energy without pollution. (4): It is expensive to build a dam for hydroelectricity

17. A: I think that _______(1)___________ can be an alternative source of energy. B: Why do you think so? A: Because our major sources of energy are running out while __________(2)____________ . However, _________(3)_____________ . B: (1): geothermal heat (2): this heat is available. (3): It is possible only in a few places in the world.

18. thank you !