WELCOME TO
CLASS 7A
Who are they?
What are they talking about?
You can guess.
Nam
Mai
gas
nuclear
oil
solar
wind
water
coal

Energy
Unit 10: SOURCES OF ENERGY
Lesson 1: GETTING STARTED
A different type of footprint
VOCABULARY
I. Vocabulary
dấu chân cacbon
các bon điôxit (CO2)
không thể tái tạo
thuộc về nước
dùng đến hết
cạn kiệt
tấm năng lượng mặt trời
-carbon footprint (n):
-carbon dioxide (n):
-renewable (a):
≠ non-renewable (a):
-hydro (n):
-use up (v):
-run out (v):
-solar panel (n):
-negative effect (n):
tác động, ảnh hưởng tiêu cực
có thể tái tạo
carbon footprint
carbon dioxide
non-renewable
run out
-solar panel
1. Listen and read.
Mai: Nam, I read yesterday that we all have a carbon footprint.
Nam: Well, we all have footprints–we make them with our feet!
Mai: Ha ha, I know that. But this kind of footprint is about the negative effect we have on the environment.
Nam: Right, it’s in the news a lot these days.
Mai: So our footprint is bigger when we use energy that produces carbon dioxide. That’s bad for the environment.
Nam: So it’s better to have a smaller footprint, right?
Mai: Right, Nam. Non-renewable energy sources like coal, natural gas, and oil produce a lot of carbon dioxide .Those sources are going to run out soon, too.
Nam: So, they’re different to wind, hydro, and solar?
Mai: Yes, they’re all sources of energy too, but they’re renewable. That means they can use them all up – They will last forever.
Nam: Do you have a big carbon footprint, Mai ?
Mai: Mine’s small. I recycle the products I use and I go everywhere by bike. We have solar panels on our roof at home to catch the sun’s energy, too.
Nam: Oh no! I think my footprint is big, and not just because of these big shoes!

What is a carbon footprint?


2. What does `non-renewable energy` mean?


3. Why is sunlight a renewable source?


4. Why does Mai think she has a small carbon footprint?


5.What things do you think might create a big carbon footprint?

It’s about the negative effects we have on the
enviroment.
Non- renewable energy means that it will run out if we use it.
Sunlight is a renewable source because we can’t use it all up or it will last forever.
Mai thinks she has a small carbon footprint because she recycles the products she uses and she goes everywhere by bike.
The products that we use are bad for the enviroment or the energy that we use produces carbon dioxide might create a big carbon footprint .
1. a. Read the conversation again and answer the questions
Sources of energy
Renewable
sources
Non -renewable sources
b. Complete the network below using information from the conversation.
wind
hydro
solar
coal
natural gas
oil
2. Listen and repeat the words and phrases.
3. Put the words into the correct groups below.
hydro
biogas
solar
wind
nuclear
natural gas
oil
4. Practise asking and answering the questions about renewable and non-renewable sources.
Example:
A: What type of energy source is wind?
B: It’s a renewable source of energy.
A: What type of energy source is coal?
B: It’s a non-renewable source.
Production
III.Chose the best option to fill in the blank.
1._____ can be an excellent sources of free, renweable enegry for poor famers.
A.Turbine B.Biogas

C.Solar panel D. Energy
2. There are many available ___________ power sources in Vietnam including sun, wind, water, etc.

A.Nuclear B.Hydro

C.Renewable D. Solar
 
B.
C
Homework
1. Learn by heart vocabulary introduced in the lesson.
2. Re-read the dialog.
3. Write a paragraph: how to reduce carbon footprint.
4. Prepare new lesson : Unit 10. A closer look1.