Unit 10. Sources of energy

UNIT 10: SOURCES OF ENERGY
READING
Descriptions of two main kinds of energy sources
Renewable energy sources can be formed naturally in a short period of time. They are not used up when the energy is exploited.
Non-renewable energy sources cannot be remade or regrown in a short period of time. They consist of fossil fuels and minerals.

N
E
W
-
W
O
R
D
N
E
W
-
W
O
R
D
N
E
W
-
W
O
R
D
VOCABULARY
Fundamental /fʌndə`mentl/ (adj, n): serious and very important, affecting the most central and important part of something
Fundamental to sb (sth)
Ex: Hard work is very fundamental to success.
He taught me the fundamentals of the job.
Kerosene /`kerəsi:n/ (n): an oil used in the engine of the plane and heat and light
Ex: a kerosene lamp
Prospect /`prɒspekt/ (n) + of sth/ of doing sth: the possibility that something may happen in the future
Ex: There is no immediate prospect of peace.
- Prospective (adj): potential

Arduous /`ɑːdjʊəs/: involving a lot of effort and energy, being difficult
Ex: The work was arduous.
Arduously (adv)

Solar stove /`səʊlə(r) stəʊv/ (n): stove which consumes the energy from the sun

Generate /`ʤenəreɪt/ (v): to produce or create something
Ex: They use the energy from the wind to generate electricity.
Generation (n): the production of something (heat, electricity)



Respiratory /respə`reɪtərɪ/ (adj): connected with breathing
Ex: Respiratory disease
Flu is a respiratory disease.
Respiration (n)
Respire (v)
Respirator (n)

Expose /ɪk`spəʊz/ sb/sth to sth: to put sth/ sb in a place or situation where they are not protected from sth harmful or unpleasant
Be exposed to sth
Ex: Babies should not be exposed to strong sun light.
Tendency /`tendənsɪ/ (n) (for sb/sth) to do sth
Ex: She has a tendency to eat a lot when she’s stressful.
Tend (v) to do sth= have a tendency to do sth
Fundamental
Kerosene
Prospect
Arduous
Solar stove
Generate
Respiratory disease
Be exposed to
Tendency
Make sentences with the words given, at least one red word and one green word in a sentence.
KEROSENE
FOR
TENDENCY
PROBLEM
GENERATE
FUTURE
ENVIRONMENT
SOLAR STOVE
COOK
PROSPECT
ARDUOUS
ON
AT
VILLAGE
FUNDAMENTAL
TEACHER
ENERGY
RURAL AREAS
FAMILY
RESPIRATORY
EXPOSED
Task 1: Choose the best title for the text:
1. Renewable and non-renewable sources of energy
2. Solar system and biogas
3. Sources of energy for the poor
4. Advantages of renewable energy sources
Task 2: In which paragraphs are the following ideas discussed?
Smoke affects people’s health.
Non-renewable sources are being used up.
The new source helps farmers do their work better.
The new source generates electricity for poor people.
The new source may save people’s lives.
The new source is not costly.
People may use wind power to serve their life in the future.
People don’t have electricity.
C, D
E
D
C, D
C
D
E
A, B
Task 3: Answer the questions:
Why are solar systems and biogas introduced to poor people?
What energy sources does John Ngujuna’s family use to sustain their life?
In what way can solar energy improve the life of poor people in Kenya?
What are the advantages of using biogas?
Why are solar systems and biogas introduced to poor people?
Because they supply people with electricity to improve their life.
What energy sources does John Ngujuna’s family use to sustain their life?
Wood for cooking, kerosene for lighting, and batteries for the radios and flashlights.
In what way can solar energy improve the life of poor people in Kenya?
Saving human energy; solving the problem of the air pollution; providing better health care and education.
What are the advantages of using biogas?
Pollution-free/ smoke-free and cheap.
Discussion
Work in groups and discuss the questions.
What energy sources are we using now in Ho Chi Minh city?
Do you think if we use them for a long time, what are the bad effects?
What should we do to solve the problems?