Unit 10. Sources of energy

Monday, March 16th 2015
Unit 10: SOURCES OF ENERGY
GETTING STARTED
Carbon dioxide cause negative effects on the environment.
ảnh hưởng tiêu cực
carbon dioxide (n)
khí carbonic (CO2)
Vocabulary
negative effects
carbon footprint (n)
dấu chân cacbon
“Dấu chân carbon” là gì?
Tác động của bạn đến môi trường mạnh đến cỡ nào, những hành động thường nhật của bạn thải thêm vào khí quyển bao nhiêu khí carbonic (CO2); tất cả những số liệu đó sẽ được tính toán đo lường và hiển thị bằng một con số mà chúng ta gọi là carbon footprint – dấu chân carbon. Con số của bạn càng lớn thì tác động xấu của bạn đến môi trường càng mạnh, tựa như một dấu chân khổng lồ in lên bề mặt trái đất vậy.
renewable (adj)
non-renewable
có thể tái tạo được
không thể tái tạo được
≠
renewable (adj)
non-renewable
có thể tái tạo được
không thể tái tạo được
≠
carbon footprint (n):
renewable (adj) :
Vocabulary
non-renewable (adj) :
negative effect (n. phr.):
ảnh hưởng tiêu cực
dấu chân carbon
có thể tái tạo
không thể tái tạo
carbon dioxide (n) :
khí carbonic
≠
3. renewable (adj) :
4. non-renewable (adj) :
Match the words with their meanings:
5. negative effect (n) :
1. carbon footprint (n) :
dấu chân carbon
có thể tái tạo
không thể tái tạo
ảnh hưởng xấu
2. carbon dioxide (n) :
C02
What are they talking about?
Guess ?
Carbon footprint
Listen and read:
Mai: Nam, I read yesterday that we all have 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 are different to wind, hydro, and solar?
Mai: Yes, they’re all sources of energy too, but they’re renewable. That means we can’t 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!
 

1.What is carbon footprint?
2. What does ‘non-renewable energy’ mean?
3. Why is sunlight a renewable resource?
4. Why does Mai think she has a small carbon
footprint?
5. What things do you think might create a big
carbon footprint?

ANSWER THE QUESTIONS
ANSWER:
1, It’s about the negative effects we have on the environment .
2, “ Non-renewable energy” means that it will run out if we use it up .
3, Sunlight is a renewable energy because we can’t use it all up or it will last forever .
4, Mai thinks she has a small carbon footprint because she recycles the products she uses and she goes everywhere by bike.
5, The products that we use are bad for the environment or the energy that we use produces carbon dioxide might create a big carbon footprint .
Complete the table below using information from the conversation:
wind
Ask and answer the questions about renewable and non-renewable resources:

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 of energy .
wind
coal
Solar energy
Biogas energy
Hydropower energy
Energy
Geothermal energy
Wind energy
Fossil Fuel Oil
Coal
Nuclear energy
Energy
Natural Gas
Thank you for your attention!
GOOD BYE