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    Sinh học 9
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    Unit 7. Saving energy

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    Tham khảo cùng nội dung: Bài giảng, Giáo án, E-learning, Bài mẫu, Sách giáo khoa, ...
    Nhấn vào đây để tải về
    Báo tài liệu có sai sót
    Nhắn tin cho tác giả
    Nguồn: tự soạn
    Người gửi: Lê Trung Thủy
    Ngày gửi: 18h:27' 13-02-2008
    Dung lượng: 1.1 MB
    Số lượt tải: 790
    Số lượt thích: 0 người
    Cross words
    Choose the numbers and find the words and the key word
    1
    2
    3
    4
    5
    6
    Families use it to make light and for machines
    The place where there are paddy fields
    You use less things than usual
    You use it to wash, bathe, etc…
    Using it for cooking, motorbike, cars, etc….
    The place where there are many high buildings and traffic
    Look at these pictures and answer the questions
    Gas
    Water
    Electricity
    * Questions:
    1. Are gas, water, electriccity necessary?
    2. What do you do to save gas?
    3. What do you do to save water?
    4. What do you do to save electricity?
    Unit 7: Saving energy
    5. READ
    Luxury > < Necessity
    Consumer (n) : User of product or service.
    Labeling scheme (n) : campaign that gives labels to products.
    Tumble dryer (n) : machine that drys things usually hair or clothes.
    Inovation (n) : bringing in new ideas, making change.
    L
    C
    T
    I
    L
    Household (n) : family.
    Account for (v) : represent.
    H
    A
    In Western countries, electricity, gas, and water are not luxeries 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 account for 10 percent to 15 percent of the electricity bill. However, this amount can be reduced by replacing an 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.
    Ultimately, these innovations will save money as well as conserve the Earth’s resources
    Unit 7: Saving energy
    In Western countries, electricity, gas, and water are not luxeries 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 account for 10 percent to 15 percent of the electricity bill. However, this amount can be reduced by replacing an 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.
    Ultimately, these innovations will save money as well as conserve the Earth’s resources
    5. READ
    Unit 7: Saving energy
    5. READ
    a) Which of the following is the best summary of the passage?
    1. Energy- saving bulbs should be used to save electricity.
    2. In Western countries electricity, gas, and water are necessities.
    3. North American and European countries are interested in saving money and natural resources.
    4. Labeling schemes help save energy
    * Explanation
    => 3 is the best answer because three others are too specific. They only cover one part of the passage.
    In Western countries, electricity, gas, and water are not luxeries 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 account for 10 percent to 15 percent of the electricity bill. However, this amount can be reduced by replacing an 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.
    Ultimately, these innovations will save money as well as conserve the Earth’s resources
    Unit 7: Saving energy
    In Western countries, electricity, gas, and water are not luxeries 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 account for 10 percent to 15 percent of the electricity bill. However, this amount can be reduced by replacing an 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.
    Ultimately, these innovations will save money as well as conserve the Earth’s resources
    5. READ
    b) Answer the questions. Write the answers in your exercise book
    What are the Western consumers intersted in?
    What can we do to spend less on lighting?
    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?
    What is the purpose of the labeling scheme?
    Why should we save energy?
    *Questions
    Unit 7: Saving energy
    5. READ
    b) Answer the questions. Write the answers in your exercise book
    1. What are Western consumers interested in?
    2. What can we do to spend less on lighting?
    3. Mrs Jones uses only two ordinary bulbs and she pays US$8 for lighting. How much will she pay if she uses two energy-saving bulbs instead?
    4. What is the purpose of the labeling scheme?
    5. Why should we save energy?
    -> Western consumers are interested in products that will not only work effectively but also save money
    -> We can use energy-saving bulbs instead of ordinary 100 watt-light bulbs to spend less on lighting
    -> She will pay US$ 2 for lighting if she uses energy-saving bulbs instead.
    -> The purpose of the labeling scheme is to help comsumers to know how efficient each model is, compared with other appliances in the same category so that they can save money and energy.
    -> Save money
    -> Conserve the Earth’s resourses
    -> Protect environment
    -> prevent natural disasters
    Exercise
    In Western countries,…………,………, ……….. are necessities. Companies now realize that……………. want products that will not only work effectively, but also………..
    For most North American households, lighting account for 10 percent to 15 percent of the……………... However, this amount can be reduced by replacing an ordinary ………........... with an……………………… and. can save about US$7 to US$21 per bulb.
    In Europe, there is a labeling scheme for ……………………………………………….and …………………….. The label tells the consumers how much energy efficiency each model has, compared with other appliances in the same category.
    Ultimately, these innovations will save money as well as conserve the Earth’s ……………..
    Read each passage and fill the blanks with the suitable words of phrases
    water
    Electricity, gas
    consumers
    save money
    electricity bill
    100-watt light bulb
    energy-saving bulb
    refrigerators, freezers, washing machines
    tumble dryers
    resources
    HOMEWORK
    1. Make a short passage about how to save electricity ( base on the passage you’ve just learnt today).
    2. Prepare the next lesson: Unit 7: Write.
     
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