Unit 7. Saving energy

WELCOME TO MY CLASS


Good morning Everybody
Period 46:
Unit 7: SAVING ENERGY
Lesson 4: Read

Tuesday, February 15th, 2012.
Period 46: Unit 7: SAVING ENERGY
Lesson 4: Read
I. New words:
- luxury (n): sth expensive but not necessary
- necessity (n)-> necessary (a)
- consumer (n) user of product or service
- account for (v):
- bulb (n)
ordinary/ standard bulb
energy-saving bulb
- tumble dryer (n-phr):
- label (n,v):
- scheme ( v):
= plan ( v):
- efficiency (n)
- category (n)
- ultimately (adv) := finally, at last
- innovation (n): = new change
- conserve (v) = protect / preserve
Tuesday, February 15th, 2012.
account for (v):
bulb (n):
standard (adj):
label (v):
efficiency (n):
ultimately (adv):
chiếm
bóng đèn
chuẩn mực
dán nhãn
hiệu suất cao
xét về lâu dài
Checking new words:
A
B
What is the passage about?
a.Choose the best summary of the passage
1- Energy- saving 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
read
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.
What is the passage about?
a. Choose the best summary of the passage
1- Energy- saving 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
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 tell the consumers how much energy efficiency each model has, compared with other appliances in the same category.
Discussion :
Why should we save energy?
- save money
- conserve the earth’s resources
- protect the environment
- prevent natural disaster
Nowadays, consumers are not only interested in how effectively the products work but also how much money they(1)……….. in North America, people use(2)……………..………….instead of(3)................ones to save money. And in many European countries, companies attract customers to buy their electrical appliances by(4) ……….. total of power consumption on them. The aims of all these are(5) …………… the Earth`s resources and save money.
Complete the summary:
Choose the words and phrases to fill in the blanks.

ordinary
save
conserving
saving energy bulbs
labeling
Homework
1. Learn by heart all the new words.
2. Make a list of:
- things you can do to save energy.
- benefits of saving energy.
3. Do exercises in your workbook.
4. Prepare for the next lesson: Lesson 4 - Write