Unit 7. Saving energy

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welcome to our class
Unit 7: Saving energy
Part: 5. read
Teacher: Nguyen Thi Thuy Anh
How much is your family’s electricity bill?
- Turn off the electrical appliances if they are unnecessary.
- Use saving-energy electrical appliances.
Warm up
What did you do to save electricity at home?
Unit 7: SAVING ENERGY
Part: Read
I. New words:
- luxury (n):
- account for (v):
- tumble dryer (n):
- innovation (n):
- bulb (n)
energy-saving bulb:
ordinary / standard bulb:
- category (n):
- efficiency (n):
- conserve (v) = protect / preserve:
- ultimately (adv) = in the end / finally:
B
T
sự xa xỉ
chiếm, là yếu tố của…
bóng điện thường
bóng điện tiết kiệm năng lượng
máy sấy quần áo
hiệu quả, hiệu suất
loại, hạng
sau cùng, cuối cùng thì
sự đổi mới, việc đưa ra phát minh mới
bảo tồn, giữ gìn, duy trì
+ efficient (adj): có hiệu quả, có hiệu suất cao
ordinary/ standard bulb
energy-saving bulb
tumble dryer
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.
Unit 7: SAVING ENERGY
Part: Read
II. Reading:
Which areas are mentioned in the passage?
Do the North American people use saving-energy bulbs ?
Yes, they do.
Western countries (North American and Europe).
Questions:
Unit 7: SAVING ENERGY
Part: Read
Match each phrase in column A to its right meaning in column B:
Unit 7: SAVING ENERGY
Part: Read
Answer: 1 - b
2 - d
3 - a
4 - c
a) Which of the following is the best summary of the passage?
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.
3. North American and European countries are interested in saving money, and natural resources.
Unit 7: SAVING ENERGY
Part: Read
III. Practice:
b) Answer the questions:
1- What are Western consumers interested in?
- They are interested in products that will not only work effectively but also save money.
2- What can we do to spend less on lighting?
- We can use energy-saving bulbs in stead of ordinary 100 watt-light bulbs 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?
- She will pay US$2 if she uses two energy-saving bulbs.
4-What is the purpose of the labeling scheme?
- The purpose of the labeling scheme is to help the consumers to know how efficient each model is, compared with other appliances in the same category (so that they can save money and energy).
Unit 7: SAVING ENERGY
Part: Read
III. Practice:
Discussion: What should we save energy for?
- save money
- conserve the Earth’s resources
+ protect the environment
+ prevent natural disaster
Unit 7: SAVING ENERGY
Part: Read
We should save energy because we can conserve the Earth’s resources.
Suggested answer:
5. Why should we save energy?
Unit 7: SAVING ENERGY
Part: Read
Unit 7: SAVING ENERGY
Part: Read
Work in groups:
In Western countries, electricity, gas, and water are ……0………. Everyone wants products that will not only work effectively, but also ......1...money. For most North American households, lighting …….....2.... ….10 percent to 15 percent of the electricity bill. They can reduce by replacing ordinary 100- watt light bulbs by …….……3 ……bulbs to save money. In Europe, there is a labeling scheme for refrigerators, freezers, washing machines to compare energy efficiency with other appliances in the same……4…….. . The aims of all these are ……5…… the Earth`s resources and save money.
Unit 7: SAVING ENERGY
Part: Read
necessities
save
accounts for
energy-saving
category
conserve
Exercise: Complete the passage with a suitable word or phrase.
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Congratulations! Group 1 is excellent.
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Congratulations! Group 2 is excellent.
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Congratulations! Group 3 is excellent.
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Congratulations! Group 4 is excellent.
- Learn by heart the new words
- Make a list of:
- things you can do to save energy.
- benefits of saving energy.
- Prepare: 6. Write.
Homework
Goodbye. See you again.
Thank you very much
for attending this lesson.
The End