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Checking-up the previous knowledge : 5 minutes * Calling two students to B/B: + Teacher gives some sources of energy such as oil , wind power , natural gas , nuclear power , solar energy[r]
(1)LESSON PLAN Unit 11 : SOURCES OF ENERGY Period : 69 Classes : 11 A2 Date of preparation : 24 / 02 / 2008 Date of teaching : 25 / 02 / 2008 Teaching item : LISTENING I) AIMS AND OBJECTIVES + LANGUAGE CONTENT : * To provide students with some information about renewable and non-renewable source of energy + LANGUAGE FUNCTION : * To express their own ideas about how to protect environment + EDUCATIONAL AIM : * To educate in students the awareness of saving the present source of energy 1/ Languages : * Vocabulary : + ecology (n) + consist of (v) + petroleum (n) + fertilized (a) * Structures: 2/ Skill : Listening 3/ Educational factor : * To educate in students the awareness of saving the present source of energy II) TEACHER AND STUDENTS' PREPARATION 1/ Method : Communicative approach 2/ Techniques : Multiple Choice , Gap-filling , Game: Pictionary , Definition , Multiple choice , Gap-fill, Group discussion 3/ Materials needed : Textbook , Color chalk , Handout , Cassette Player 4/ Students' preparation : * Read the guiding books and grammatical books before going to school * Prepare the keys for the task in Before you listen and After you listen III) PROCEDURES IN CLASS Stabilization : (1 minute) * Greeting the students and asking them something about the attendance , their health, the weather and preparation Checking-up the previous knowledge : (5 minutes) * Calling two students to B/B: + Teacher gives some sources of energy such as oil , wind power , natural gas , nuclear power , solar energy , coal , water power and ask them to make a conversation + Suggested conversation: A: I think / believe that wind power can be alternative sources of energy B: Why you think / believe so ? A: Because our major sources of energy are running out while the wind is abundant an unlimited B: I know it is also clean and safe to the environment However, it is not available when there is no wind * Correcting the mistakes , giving remarks and marking Presentation of the new materials SPECIFIC STAGES TIME STUDENTS' ACTIVITIES TEACHER'S ACTIVITIES Lop11.com THE CONTENT OF THE LESSON (2) TIME STUDENTS' ACTIVITIES TEACHER'S ACTIVITIES Warm-up: Game: Pictionary * Dividing the class into four groups * Preparing some pieces of paper on which there is one word : ocean / sun / land / grass / air / coal / oil / … ocean 7ms 5ms * Dividing the class into four groups sun * Give a piece of paper to one person in each group This person doesn’t show it to the others in his or her group , then explain the word by drawing When the others in his group can recognize what the word is, they will say it aloud The groups that has more right words will win the game * Checking the students’ understanding of the instruction * Declaring the winning group Lead-in: * Having the students show the pictures they have just drawn and ask : what these pictures refer to ? Expected answer: They are about natural resources * Emphasizing the students’ answers and introducing the lesson * Writing the title of the lesson on B/B Unit 11: SOURCES OF ENERGY Period 69 : Listening Pre-listening: Activity 1: Pre- teach vocabulary * Writing the new words on the blackboard ecology : [i'kɔlədɔi] sinh thaùi hoïc ecologist : a person who studies ecology (definition) conserve [kən'sə:v] * Playing the game Unit 11: SOURCES OF ENERGY Period 69 : Listening * Chatting with the teacher by answering the questions * Writing the title of the lesson * Writing the new words giữ gìn; bảo tồn(to avoid wasting something) conservation: (n) * Asking the students to read the words after the teacher in chorus * Reading the words after the teacher in chorus While-listening: Activity 1: Multiple choice Task : (page 129) * Asking the students to listen to the text twice and checking their predictions * * Asking the students to compare their answers with their partners I BEFORE LISTENING Vocabulary: ecology : [i'kɔlədɔi] sinh thaùi hoïc ecologist : a person who studies ecology conserve [kən'sə:v] giữ gìn; bảo tồn(to avoid wasting something) 8ms THE CONTENT OF THE LESSON conservation: (n) Reading through the multiple choice questions II WHILE LISTENING * Listening to the tape and Task : (page 129) choosing the best option to complete each sentence Lop11.com Multiple choice (3) TIME TEACHER'S ACTIVITIES STUDENTS' ACTIVITIES Answer keys: 1.D 2.C 3.D 4.A B then calling them out 10ms 8ms 1m * Letting the students listen for the second time if needed * Going over the answers with the class Expected answers: 1.D 2.C 3.D 4.A B Activity 2: Gap-fill Task : (page 129) * Asking the students to read through the paragraph minutes carefully and then guess the missing words * Asking the students to listen to the tape again and filling in the gaps with the words they have heard * Calling on some Ss to give the answers Expected answers: unlimited atmosphere may gases amounts Post listening: Discussion * Asking the students to work in groups of to discuss these questions A secretary from each group will note down students’ ideas Which group these sources of energy belong to ? Sources of NonreReneenergy newable wable Coal Geothermal Petroleum Solar energy Oil Wind energy Gas * Going around to give help is necessary * Calling on some students to speak out * Giving the feedback Homework * Writing down a short paragraph to summarize the main ideas of the Listening * Preparing Writing THE CONTENT OF THE LESSON * Reading through the paragraph minutes carefully and then guessing the missing words * Listening to the tape again and filling in the gaps with the words they have heard * Giving the answers Task : (page 129) Gap-fill Answer keys: unlimited atmosphere may gases amounts * Working in groups of four III AFTER LISTENING or five to discuss these Which group these questions sources of energy belong to ? (renewable or nonrenewable) * Some students talk about it * Writing the homework Coal Geothermal Petroleum Solar energy Oil Wind energy Gas Homework * Prepare the next lessonWRITING Self-evaluation: …………………………………………………………………………………………………………………………………………………………………………………………………………… …………………………………………………………………………………………………………………………………………………………………………………………………………… …………………………………………………………………………………………………………………………………………………………………………………………………………… …………………………………………………………………………………………………………………………………………………………………………………………………………… ………………………………………………………………………………………………………………………………………………………………………………………………………… Lop11.com (4) Tape script (cô baûn) The natural environment includes all natural resources that are necessary for life: the air, the ocean , the sun and the land Because they are vital for life These resources must be protected from pollution and conserved Ecologists study their importance and how to use them carefully According to ecologists, resources are divided into two groups: renewable and non-renewable When a resource is used, it takes some time to replace it If the resource can be replaced quickly, it is called renewable If it can’t be replaced quickly and easily, it is non-renewable For example, grass for animals is a renewable resource When cows eat the grass, the resource is used If the soil is fertilized and protected , more grass will grow Coal, however, is nonrenewable because it takes millions of years to make coal All fossil fuels are nonrenewable resources Solar energy , air, and water are renewable resources because there is an unlimited supply However, this definition may change if people are not careful with these resources The amount of solar energy that reaches the earth depends on the atmosphere If the atmosphere is polluted, the solar energy that reaches the earth may be dangerous if life is going to continue, the air must contain the correct amount of nitrogen (N), oxygen (O) , carbon dioxide (CO2) , and other gases If humans continue to pollute the air , it will not contain the correct amounts of these gases Tape script (naâng cao) B) Mr John Jackson is giving a lecture on energy sources Listen to the first part and check the ideas that are not mentioned in his lecture Today I am very pleased to talk about a topic that is so essential to our environment – energy sources The demand for energy, as I’m sure you all know, is increasing more rapidly than ever The non-renewable sources such as coal and oil have been used for cooking , lightning , heating , and generating electricity for centuries … um … to serve our life However, they are harmful to the environment , as they produce a lot of smoke when we burn them And what’s more , they are running out That’s why people are looking for sources that are almost limitless and clean – I mean the renewable sources , , , ,7 C) Look at the pictures Listen to the second part and complete the diagram As I have just said, the renewable sources are limitless Most of them not cause pollution, or at least less pollution than coal or oil Let me give you an example of biomass Biogas is a kind of biomass produced from animal matter It is safe and clean enough Corn is the biomass from plants It is ground and then made into sugars These sugars are then made into ethanol , a kind of fuel used for cars Cars using ethanol may give out carbon dioxide, which pollutes the air But when you grow another new crop of corn, the corn takes up the carbon dioxide in the air to reduce air pollution As you can see now, this source of energy never runs out and it causes less pollution E C B D A F Ethanol là hợp chất dễ cháy , không màu có mùi thơm , thường dùng chế biến thức uống có cồn , hương liệu dùng chế biến thực phẩm và là thành phần nhiên liệu động xe Biomass : khoái sinh naêng The Biomass Cycle: Chu trình tạo khối sinh từ bắp Lop11.com (5) Lop11.com (6)