Giáo án Tiếng Anh lớp 11: UNIT 11 SOURCES OF ENERGY-SPEAKING

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Nội dung Text: Giáo án Tiếng Anh lớp 11: UNIT 11 SOURCES OF ENERGY-SPEAKING

UNIT 11 SOURCES OF ENERGY PART B: Speaking I. OBJECTIVES: Aims: - Getting students to give reasons the of using alternative sources of energy and talk about the advantages and disadvantages of alternative sources of energy. Vocabulary: abundant, enormous, plentiful, renewable, convenient, polluted, limited, non-renewable, exhausted Expressions : I think/believe that … Why do you think so? I know it is …. However, it is … Teaching aids: some pictures about the alternative sources of energy II.PROCEDURE T Contents T & S’activities
 Teacher asks these I). WARM UP: (5 minutes) .1. Can you tell me some sources of questions one after another energy? and has students discuss 2. Which source of energy is the most with their partners before popular in Vietnam? Is it clean or giving answers. polluted? Is it limited or unlimited? Is it  Students may discuss safe or dangerous? the questions with their *Suggested answers partners to find out the 1. fossil fuels, solar energy, wind answers energy, water energy, … 2. Fossil fuels are perhaps the most popular. This kind of energy is polluted -T calls Ss to bb and Ss and limited. answer the questions II.Check up:Answer the questions: 1.What is major sources of energy? 2.How many sources of energy are mentioned in the text , and which one Teacher sticks the pictures
do you think has the most potential? on the board or shows II). PRE-SPEAKING (5 minutes) them on the projector. Ask students to match the 1. Wind energy following words with each 2. Solar energy Picture A picture: : Solar energ 3. Geothermal energy Picture B : Wind energy 5. Nuclear energy Picture Students may discuss the C : Fossil fuel (oil) pictures with their partners before giving answers 4. Fossil fuel (coal) 6. Water gy ener Picture D : Water energy  wind energy Picture E : Fossil fuel (coal) 7. Fossil fuel (oil) Picture B Picture
F : Geothermal energy Picture G : Nuclear energ Picture A:  water energy Solar energy Picture D Picture C Picture F fossil fuel (oil) Picture E
 nuclear energy Picture G Teacher has students work in pairs reading the information in the table and then discussing the  geothermal advantages and energy disadvantages. After that, have some pairs report their work in front of the II). WHILE-SPEAKING: (20 - 25 class. The teacher gives minutes) comments if necessary Task 1:The following statements list some advantages and disadvantages of Students work in pairs and various sources of energy .Read and then report their answers tick( THE APPROPRIATE BOX a (
For advantages) Or D( for to the class by reading disadvantages ) then compare the result them aloud. with a partner’s  Teacher should have .1. Fossil fuels will be exhausted within a relatively short time. students practise speaking 2. Geothermal heat is available only these words first: in a few places 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  T has students read the radiation which is dangerous to the environment. example in Task 2 (page 6. Solar energy is not only plentiful 128) then act out and role- and unlimited but also clean and safe. play with one or two 7. It is expensive to build a dam for students.
hydroelectricity.  Students practice in Suggested answer: 1. D 2. D 3. D 4. pairs: A 5. 5. D 6.A 7. D . Task 2: Talk with your friend about the advantages and disadvantages of using each alternative source of energy , using the suggestion from Task 1 *Useful language Enormous Dangerous Plentiful Polluted Available Exhausted Unlimited Limited Renewable Non-renewable Convenient Unsafe
Model: A. I think / believe that wind power can be an alternative source of energy.  Teacher should ask B. Why do you think / believe so? A. Because our major sources of energy them to pay attention to are running out while the wind is the expressions:  Have students work in abundant and unlimited. B. I know it is also clean and safe to pairs practising the environment. dialogue and changing the However, it is not available when there sources and using the is no wind. words given to give the A. I think that nuclear power can be an reasons. alternative source of energy. B. Why do you think so? A. Because our major sources of energy are running out while the nuclear power is unlimited
B. I know it can provide enough electricity for the world’s needs for hundreds of years. However, a nuclear reactor releases radiation which is dangerous to the environment A. I believe that solar energy can be an alternative source of energy. B. Why do you believe so? A. Because our major sources of energy are running out while the sun releases large amount of energy every day . B. I know it is not only plentiful and infinitive but also clean and safe. However, it is only possible during the day time.
A. I think that water power can be an alternative source of energy. B. Why do you think so? A. Because our major sources of energy are running out while the wind is unlimited. B. I know water power provides energy Teacher has students work without pollution. However, it is in groups to prepare a expensive to build a dam for report on which source hydroelectricity they think is the most potential. Then ask the A: I think that more and more people representative of some will use the solar energy. groups to report to the B: Why do you think so? class. Give comments and A: Because it’s available, unlimited and correct mistakes where
easy to use. necessary C: But it’s expensive and we can only have it at specific time of the year. A: I hope that the progress of science and technology will help to overcome this problem. B: That’s right and then we don’t have to worry about the shortage of energy. C: And our life will be more comfortable with cheap simple devices run on the solar energy. I think that … I believe that … Why do you think so? I know it is …. However, it is …
Task 3:Express your belief on the increasing use of alternative sources in the future , Using the ideas from Task 2 .IV). POST SPEAKING: (5 minutes)  Teacher has each students write a short description of several alternative sources of energy. Ask some of them to read their description to the class. V) Homework. -do all the exercises again and prepare the part : Listening