Unit 11 Sources of energy

<span class='text_page_counter'>(1)</span>Giáo viên: Dinh Thi Nhung.

<span class='text_page_counter'>(2)</span> WARM-UP. EXPLAIN PLAYING GAME THE WORD.

<span class='text_page_counter'>(3)</span> WATER.

<span class='text_page_counter'>(4)</span> GAS.

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<span class='text_page_counter'>(9)</span> Tuesday, November 8th, 2011 Sources of Energy Unit 11 B. SPEAKING.

<span class='text_page_counter'>(10)</span> VOCABULARY -reactor [ri:'æktə] (n) lò phản ứng Nuclear reactor lò phản ứng hạt nhân -radiation [,reidi'ei∫n]. sự phóng xạ. -abundant [ə'bʌndənt]. phong phú. -renewable [ri'nju:əbl]. có thể phục hồi. # non-renewable:. không thể phục hồi.

<span class='text_page_counter'>(11)</span> Task 1: Read the sentence in the box and tick if these facts are advantages and disadvantages: A. D. . 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.. . 6. Solar energy is not only plentiful and unlimited but also clean and safe. 7.It is expensive to built a dam for hydroelectricity.. .  . .

<span class='text_page_counter'>(12)</span> 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. I think that wind power can be an alternative source of energy........ Why do you think so?.

<span class='text_page_counter'>(13)</span> Example : A: I think that wind power can be an alternative sources (1) of energy. B: Why do 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).

<span class='text_page_counter'>(14)</span> Useful expressions: I think that………….. Why do you think / believe so? It is………….However,……………. Useful language: Words for FOR Words for AGAINST enormous, plentiful, dangerous Available, clean and safe expensive unlimited, renewable polluted convenient , cheap limited, nonrenewable, simple devices/ harmful technology exhausted.

<span class='text_page_counter'>(15)</span> Task 3: Work in groups Make a conversation to express your belief on the increasing use of alternative sources in the future, using the ideas from Task 2. Student A: Give your suggestion of an alternative source of energy. (I think/believe that more and more people will use… as a source of energy in the future.) Student B: Ask A for the reason. (Why do you think/believe so?) Student A: Explain the reason. (Because it is unlimited…… .) Student C: Say the disadvantage of that source. (But it is expensive and only available during…. .) Student D: Express his own opinion. (I hope the progress of science and technology/ will help overcome this problem…. .).

<span class='text_page_counter'>(16)</span> Model: 1. I think/ more and more people / use solar power. 2. Why/ think so?. 3. because/ available, unlimited & easy to use. 4. But /expensive and /specific time of the year. 5. I hope that scientists will help/ overcome….

<span class='text_page_counter'>(17)</span> Cues: 1 2 3 4 5. I think more and more people use (solar power/ nuclear energy/ Geothermal heat/ wind power/ water power) Why /think /believe so? because/ available, unlimited & easy to use/ plentiful and infinite But /expensive and /specific time of the year/ expensive to built a dam for hydroelectricity I hope that scientists/the progress of science and technology will help overcome….

<span class='text_page_counter'>(18)</span> HOMEWORK Learn by heart new words Write a short paragraph about the ways to save energy in your family Prepare for the next lessonC.LISTENING (page 128 129 ).

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