Unit 7. Saving energy

What must you do to save electricity at home ?
We must turn off electrical appliances when unnecessary and use saving-energy electrical appliances.
Wednesday, February 18th , 2009
Unit 7: SAVING ENERGY
Period 44 : READ
A
1- luxury
2- necessity
3- consumer
4- account for
5- replace
6- last
7- labelling scheme
8- energy efficiency
B
a _ s? d?ng
b_ cơng xu?t nang lu?ng
c_ k�o d�i
d_ chuong trình d�n nh�n
e_ xa x? ph?m
f_ kh�ch h�ng
g_ thay th?
h_ nhu y?u ph?m
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2
3
4
5
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8
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 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.
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2
3
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 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.
1_ 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 North American households spend less
money on lighting ?
A. They don’t use light bulbs .
B. They can use energy-saving bulbs instead of ordinary
light bulbs .
C. It includes both B and D .
D. They don’t turn on light bulbs in the afternoons .
3_ An energy-saving bulb……………………………….…
A. doesn’t last longer than an ordinary bulb .
B. lasts as long as an ordinary bulb .
C. lasts longer than an ordinary bulb.
D. doesn’t as long as an ordinary bulb .
4_ Why do producers have a labeling scheme for refrigerators ,
freezers , washing machines and tumble dryers ?
A They do it so that the labeling scheme helps consumers know
how long the household appliances last .
B. They do it so that the labeling scheme helps consumers know
how cheap the household appliances are .
C. They do it so that the labeling scheme helps consumers know
how efficient the household appliances are .
D. It includes A , B and C .
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4
1.Why should you save electricity ?
2.What must you do to save electricity
in class ?
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
want to save money and natural resources.
4_ Labeling schemes help save energy .
1. Learning by heart all the new words.
2. Making a list of:
- things you can do to save energy.
- benefits of saving energy.
3. Doing exercises in your workbook.
4. Preparing Lesson 4 - Write