Unit 11 sources of energy speaking

Water Hydroelectric Power dam Windmill Wind power reactor /ri:'æktə/ ( n) : lò phan ứng limited /'limitid/ ( adj ) : hạn chế, có giới hạn unlimited /ʌn'limitid/ (adj): không giới hạn renewable /ri'nju:əbl/ (adj ) : có thể thay thế non-renewable /,nɔn 'ri'nju:əbl/ (adj ): thay thế Task The following statements list some advantages and disadvantages of various sources of energy Read and tick () the appropriate box A ( for the advantages ) or D (for the disadvantages ), then compare the results with partner’s A 1.Fossil fuels will be exhausted within a relatively short time 2.Geothermal heat is available only in the few place in the world 3.If the wind does not blow, there is no wind energy 4.Water power provides energy without pollution  5.A nuclear reactor releases radiation which is dangerous to the environment Solar energy is not only plentiful and unlimited but also clean and safe 7.It is expensive to built a dam for hydroelectricity  D      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 I think that wind power can be an alternative source of energy Why you think so? Some suggestions to express advantages and disadvantages Asking for your opinions What you think about? What is your opinion? What you mean that? Why you think so? How you feel about? Expressing opinions I think/ believe/ feel … In my opinion … According to … It meant that … Express agreements I agree/ think so… That’s right/ true … It’s a good idea … Express disagreements I don’t think/ I don’t agree/ I disagree … Well, It’s not true/ right but … Sources of energy Nuclear energy Geothermal heat Solar energy Wind power Water power Advantages It is unlimited It is available Disadvantages It can be dangerous It is only available in some places It is not only plentifulIt is only possible and infinite but also during the day time clean and safe It is clean and unlimited 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 Example : A: I think that wind power can be an alternative sources (1) of energy B: Why you think so? A: Because our major sources of energy are running out while 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) A: I think that _(1) _ can be an alternative source of energy B: Why 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 A: I think that solar energy can be an alternative sources of energy B: Why 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 A: I think that _(1) _ can be an alternative source of energy B: Why 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 A: I think that _(1) _ can be an alternative source of energy B: Why 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 A: I think that _(1) _ can be an alternative source of energy B: Why you think so? A: Because our major sources of energy are running out while (2) B: However, _(3) _ (1): geothermal heat (2): this heat is available (3): It is possible only in a few places in the world ... time A: I think that solar energy can be an alternative sources of energy B: Why you think so? A: Because our major sources of energy are running out while the solar energy is plentiful and infinite... source of energy B: Why 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. .. advantages and disadvantages of using each alternative sources of energy , using the suggestions from Task I think that wind power can be an alternative source of energy Why you think so? Some