Thiết kế bài dạy môn Tiếng Anh 11 - Tiết 69 - Unit 11: Sources of energy

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 .
 1. Stabilization : (1 minute)
 * Greeting the students and asking them something about the attendance , their health, the weather and preparation
 2. 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 do 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.
 3. Presentation of the new materials . 
SPECIFIC STAGES
TIME
TEACHER'S ACTIVITIES
STUDENTS'
ACTIVITIES
THE CONTENT
OF THE LESSON
7ms
1. 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
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 do 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
* Dividing the class into four groups 
* Playing the game
* Chatting with the teacher by answering the questions
* Writing the title of the lesson
Unit 11: SOURCES OF ENERGY
Period 69 : Listening
5ms
2. Pre-listening:
Activity 1:
Pre- teach vocabulary
* Writing the new words on the blackboard
1. ecology : [i'kɔlədʒi] sinh thái học
? ecologist : a person who studies ecology 
(definition)
2. conserve [kən'sə:v]
giữ gìn; bảo tờn(to avoid wasting something) 
? conservation: (n)
* Asking the students to read the words after the teacher in chorus
* Writing the new words 
* Reading the words after the teacher in chorus
I. BEFORE LISTENING. 
1. Vocabulary:
1. ecology : [i'kɔlədʒi] sinh thái học
? ecologist : a person who studies ecology 
2. conserve [kən'sə:v]
giữ gìn; bảo tờn(to avoid wasting something) 
? conservation: (n)
8ms
3. While-listening:
Activity 1: Multiple choice 
Task 1 : (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 then calling them out. 
* Letting the students listen for the second time if needed
* Going over the answers with the class
F Expected answers:
1.D 2.C 3.D 4.A 5. B
* Reading through the multiple choice questions
* Listening to the tape and choosing the best option to complete each sentence
II. WHILE LISTENING
Task 1 : (page 129)
Multiple choice 
Answer keys:
1.D 2.C 3.D 4.A 5. B
10ms
Activity 2: Gap-fill
Task 2 : (page 129)
* Asking the students to read through the paragraph 3 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 2. atmosphere
 3. may 4. gases
 5. amounts
* Reading through the paragraph 3 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 2 : (page 129)
Gap-fill
Answer keys:
unlimited 
atmosphere
3. may 
4. gases
5. amounts
8ms
4. Post listening:
Discussion
* Asking the students to work in groups of 5 to discuss these questions. A secretary from each group will note down students’ ideas.
Which group do these sources of energy belong to ?
Sources of energy
Nonre-
newable
Rene-
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
* Working in groups of four or five to discuss these questions 
* Some students talk about it
III. AFTER LISTENING
Which group do these sources of energy belong to ? (renewable or nonrenewable)
Coal
Geothermal
Petroleum
Solar energy
Oil
Wind energy
Gas
1m
5. Homework
* Writing down a short paragraph to summarize the main ideas of the Listening
* Preparing Writing
* Writing the homework
5. Homework
* Prepare the next lesson-WRITING
Self-evaluation:
º Tape script (cơ bản)
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.
º Tape script (nâng 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.
2 , 3 , 4 , 6 ,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 do 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.
1. E 	2. C	3. B	4. D	5. A	6. F
Ethanol là hợp chất dễ cháy , không màu có mùi thơm , thường được dùng chế biến thức uống có cồn , hương liệu dùng trong chế biến thực phẩm và là một thành phần của nhiên liệu động cơ xe hơi
Biomass : khối sinh năng
The Biomass Cycle: Chu trình tạo ra khối sinh năng từ bắp