UNIT 7 : POLLUTION. Lesson 6: SKILLS 2 I/ OBJECTIVES By the end of the lesson, students can: - Listen to get specific information about the topic: Thermal pollution. - Write a paragraph about the causes and effects of one type of pollution in your area. 1. Knowledge: a. Grammar : Grammatical structures: b. Lexical items : - extra words related to the topic: pollution. c. Pronunciation: -Clusters: 2. Skills: - Listening, Speaking, Reading,Writing and interactive skills 3. Attitude: - Cooperation, respect, having right and friendly attitudes with friends, teachers in the new school 4. Quality and competence: - Be confident and friendly with the new school environment - Develope listening, speaking skills and cooperative interaction II/ TEACHING AIDS (MATERIALS) 1.Teacher’s preparation: - Lesson plan, Pictures, posters ,textbook,CD-MP3(Computer-Multi projector/cassette/ “sách mềm”) and other materials 2. Students’ preparation: - Textbook, notebook, school things. III/ WORKING ARRANGEMENTS( WAYS OF WORKING ) - Pair work , individual work, group work, T-WC IV/ TEACHING PROCEDURE: 1- Greeting`and checking students’ adtendence: Total: In: ......... Out: .......... 2- Checking the old lesson 3- New lesson: Teacher ’ s activities students ’ s activities Listening -T asks: What do you know about the thermal pollution? 1. Describe what you see in the picture and talk about the relationship between them.(P13) - Ss work in pairs describing the pictures and the relationship between them. - Call on one or two Ss to give their answers. - Play the recording for Ss to check their answers. - Ask Ss what they know about thermal pollution. 2. Listen to the part of a conversation... (P13) - Have Ss quickly read the diagram and identify the from of the word/ phrase to befilled in each blank. - For example, the words for blanks 1 and 2 are adjectives. - Play the recording once. Ask for Ss’ answers and write them on the board. - If all the answers are correct, more to the next activity. - If Ss are not sure about their answers, play the recording again for Ss to check. Make changes to the answers on the boar Writing In this writing part, Ss are asked to write about the causes and effects of one pollution type in their area. Recap on the types of pollution by turning quickly back to the beginning of the unit in the GETTING STARTED section. 3. Work in pairs. Discuss causes and effects of one type... (P13) - Ss work in pairs and decide which pollution type their area they are going to discuss. - Have Ss take notes of the causes and effects. - Move around to offer help as pairs discuss their ideas. 4. Imagine that you two are writing an article... (P13) - Ss stay with their partner. One writes about the causes and the other writes about the effects based on their notes from 3. Remind - Ss to use markets like firstly, secondly finally to navigate through their points. Move around to offer help and take notes of any structures or language that Ss are struggling with. - Bring the whole group together if there is a point T wants to clarify, then they can continue with the writing. 5. Read each other’s work... (P13) - Now have Ss share their work with each other and combine it to make a complete article. - Tell them that they should add one or two sentences at the beginning to introduce the topic and other ones at the end to conclude their article. - Note, if Ss need more support, post the sample article (see next page) on the board as a reference when Ss get to this stage of the lesson. This will help them structure their work. - Next, have pairs swap and read each other’s articles. - Finally, ask for volunteer pairs to read their articles out to the class and have Ss comment on them. - Then collect all the articles for marking. - Ss do exercises in workbook Homework - Review this lesson - Prepare new lesson - Ss do exercises in workbook Works related to thermal pollution. + algal bloom + cooling tower + power station 1.Key: - The first picture shows an algal bloom in coastal seawater. - The second picture shows the cooling towers from a power station. - They are both related to thermal pollution. 2. Key: 1. hotter 2. cooler 3. cool 4.warm rivers 5. warmer water 6. fish population 7. Harmful 8. colour 9. Poison 10. Cool down + discharge + reservoir Sample article: Water pollution There are several types of pollution. However, water pollution is the most serious in our area. It is caused by several factors. Firstly, families dump sewage into the river. In the past it was a very beautiful river, but now the water is almost black. Secondly, there are two new factories in our area, and they are dumping chemical waste into the lake and river. Thirdly, pesticides are another source of pollution. Farmers in our area usually use these to kill insects. Water pollution badly affects our area. We do not have enough fresh waster to water the plants and crops. People cannot raise fish in the river and the lake because the water there is so polluted. In addition, there are no more wild ducks near the river today since they cannot find fish for food. Another negative effect is that sometimes in the afternoon there is a bad smell from the polluted river, so people do not like walking along it anymore. People in our area al aware of this problem, and we are thinking of ways to solve it. Audio script: Reporter:Does thermal pollution mean that bodies of water get hotter, Mr Nam? Mr Nam:Not always. Sometimes the water becomes colder, and that’s thermal pollution. In general, thermal pollution means a change in the water temperature. Reporter: That’s interesting! What causes it? Mr Nam: Power stations are factor. They use water in the nearby lakes or rivers to cool their equipment, which heats up the water. Then they dump the hot water back into its source. Reporter: Are there any other causes? Mr Nam: Yes. Thermal pollution may also happen due to the discharge of cold water from reservoirs into warm rivers. Reporter: Thermal pollution can have dramatic effects. Right? Mr Nam: Certainly. Most aquatic creatures need a certain temperature to survive. Warmer water has less oxygen in it, and this can harm fish populations. Beside, warmer water can cause harmful algal blooms. This can change the colour of the water like in the first picture and more seriously, the algae poisons the fish. Reporter: What can we do, Mr Nam? Mr Nam: In many places, they build cooling towers like in the second picture to cool down the water from power stations. Reporter: Anything else we can do? …