Bài giảng Tiếng Anh 9 - Unit 7: Saving energy - Period 44: How to save electricity

English 9welcome to our lessonquynh hai secondary school Nuclear PowerSolar powerOil powerWater powerWindy powerTide powerA ! Cã ®iÖn råi!What is it ?Do you think it is enormous ?How much electricity does your family use every month ?Do you want to use less ?What must you do to save electricity at home ?We must turn off electrical appliances when unnecessary and use saving-energy electrical appliances. Unit 7: SAVING ENERGYPeriod 44: Read How to save electricityI. New Words- luxury (n):- consumer (n):- scheme(n): = plan- innovation (n): change ,make sth new- bulb (n)energy-saving bulbordinary/ standard bulb- conserve (v) = protect / preserve- ultimately (adv) : finally, at last-replace (v)ex : I replace an old door with a new one-category (n) = kind sth expensive but not necessaryuser of products Unit 7: SAVING ENERGY Period 44 : How to save electricity1. Account for 10 percent2. untimately3. Last eight times longer7. Energy efficiency5. replace6. The same category4. luxury8. innovation9.Labeling schemeI. New WordMatchingA. Cuèi cïngB. Sù ®æi míiC. KÕ ho¹ch d¸n nh·nD. Xa xØ phÈmE. chiÕm 10 %G. Cïng lo¹iH. BÒn gÊp 8 lÇnI. HiÖu qu¶ n¨ng l­îngK. Thay thÕ Unit 7: SAVING ENERGY Period 44 : How to save electricity1. Account for 10 percent2. untimately3. Last eight times longer7. Energy efficiency5. Replace6. The same category4. luxury8. innovation9.Labeling schemeI. New WordMatchingA. Cuèi cïngB. Sù ®æi míiC. KÕ ho¹ch d¸n nh·nD. Xa xØ phÈmE. chiÕm 10 %G. Cïng lo¹iH. BÒn gÊp 8 lÇnI. HiÖu qu¶ n¨ng l­îngK. Thay thÕ3I. VocabularyII. Pre - reading Unit 7: SAVING ENERGY Period 44 : How to save electricity In Western countries, electricity, gas, and water are not luxuries but necessities. Companies now realize that consumers want products that will not only work effectively, but also save money.For most North American households, lighting accounts for 10 percent to 15 percent of the electricity bill. However, this amount can be reduced by replacing and ordinary 100 – watt light bulb with an energy – saving bulb. These bulbs use a quarter of the electricity of standard bulbs and last eight times longer. Therefore consumers can save about US$7 to US$21 per bulb.In Europe, there is a labeling scheme for refrigerators, freezers, washing machines and tumble dryers. The label tells the consumers how much energy efficiency each model has, compared with other appliances in the same category.Untimately, these innovations will save money as well as conserve the Earth’s resources.3I. VocabularyII. Pre - reading Unit 7: SAVING ENERGY Period 44 : How to save electricity Arrange these sentences according to the content of each paragraph.Finally, these innovations both save money and preserve the Earth’ s resources.Consumers should use energy- saving bulbs instead of ordinary bulbs to save ¾ of electricity.Labeling plans help save electricity.4. Electricity, gas, and water are necessary for consumers in Western countries.Key: 4 – 2 – 3 – 1 3I. VocabularyII. Pre - reading Unit 7: SAVING ENERGY Period 44 : How to save electricityIII. while - readingRead and find out the best summary of the text.Energy- saving bulbs should be used to save electricity.In Western countries, electricity, gas, and water are necessities.North American and European countries are interested in saving money, and natural resources.Labeling schemes help save energy.Key: 3 Arrange the sentences3I. VocabularyII. Pre - reading Unit 7: SAVING ENERGY Period 44 : How to save electricityIII. while - reading 1. Summary of the passageArrange these sentences1_ What do Western consumers want ?A. They want products to work effectively.B. They want products cheap .C. They want products save money .D. It includes both A and C . 2_ How can we spend less money on lighting ?A. We don’t use light bulbs .B. Wecan use energy-saving bulbs instead of ordinary 100- watt light bulbs .C. It includes both B and D .D. We don’t turn on light bulbs in the afternoons .3_ Mrs, Jones uses only two ordinary bulbs and she pays US$8 for lighting. How much will she pay if she uses two energy – saving bulbs instead ?A. She will pay US$2 for lightingB. She will pay US$6 for lightingC. She will pay US$8 for lightingD. She will pay US$1 for lighting4_What is the purpose of the labeling scheme ? A the purpose of the labeling scheme is to help consumers know how long the household appliances last .B. the purpose of the labeling scheme is to help consumers know how cheap the household appliances are .C. the purpose of the labeling scheme is to help consumers know how efficient the household appliances are .D. It includes A , B and C . Read the text and choose the best answer .if she uses two energy – saving bulbs instead3I. VocabularyII. Pre - reading Unit 7: SAVING ENERGY Period 44 : How to save electricityIII. while - reading 1. Summary of the passageArrange these sentences 2. Choose the best answerWhy should we save energy?We should save energy :- to save money-to conseve natural resourses -to protect the environmentto prevent disasterto be healthier....3I. VocabularyII. Pre - reading Unit 7: SAVING ENERGY Period 44 : How to save electricityIII. while - reading 1. Summary of the passageArrange these sentences 2. Choose the best answerIV. Post- reading3I. VocabularyII. Pre - reading Unit 7: SAVING ENERGY Period 44 : How to save electricityIII. while - reading 1. Summary of the passageArrange these sentences 2. Choose the best answerIV. Post- reading natural resourcesenergymoneySaveDiscussion3I. VocabularyII. Pre - reading Unit 7: SAVING ENERGY Period 44 : How to save electricityIII. while - reading 1. Summary of the passageArrange these sentences 2. Choose the best answerIV. Post- reading natural resourcesenergymoneyDiscussionWhat should you do to save energy?3I. VocabularyII. Pre - reading Unit 7: SAVING ENERGY Period 44 : How to save electricityIII. while - reading 1. Summary of the passageArrange these sentences 2. Choose the best answerIV. Post- reading natural resourcesmoney- Using solar energy instead of coal, gas and oil.- Using energy-saving house hold appliances like bulbs, refrigerators , stoves, cookers......- Reducing the amount of water and electricity we use- Turning off the faucets, the TV or radio when we do not use them.3I. VocabularyII. Pre - reading Unit 7: SAVING ENERGY Period 44 : How to save electricityIII. while - reading 1. Summary of the passageArrange these sentences 2. Choose the best answerIV. Post- reading natural resourcesmoneyV. HomE WORK Häc thuéc tõ vùng Tr¶ lêi l¹i c¸c c©u hái phÇn b trang 61 vµo vë ChuÈn bÞ phÇn WriteThank you for your attentionThank you for your attention