Energy is fundamental to poor people-the one-third of humanity that does not have modern energy supplies like electricity, with which their life could be improved.. What are their energy[r]
Trang 1UNIT 10:
SOURCES OF
ENERGY
Trang 2Energy story
Trang 3N E W W O R D
Coal Nuclear energy Garbage
Biogas
Natural gas Oil
Wind Solar energy
Trang 4Air that moves quickly as a result of natural forces
Wind
Trang 5Gas, especially methane, that is produced by dead plants and that can be burned to produce heat
Biogas
Trang 6Energy provided by the sun
This energy is in the form
of solar radiation, which makes the production of solar electricity possible.
Solar energy
Trang 7A powerful form of energy
produced by converting matter into energy by splitting
the nuclei (= central parts) of atoms
It is used to produce electricity.
Nuclear energy
Trang 8A hard black mineral that is found below the ground and burnt to produce heat
Coal
Trang 9Waste food, paper, etc that you throw away
Garbage
Trang 10A thick liquid that is found in rock underground
Oil
Trang 11Gas that is found under the ground or the sea and that is used as a fuel
Natural gas
Trang 13 Non-renewable energy sources
cannot be remade or regrown in a
short period of time They consist of
fossil fuels and minerals.
Renewable energy sources
can be formed naturally in a short period of time They are not used up when the energy is
exploited.
Trang 16Ex : Hard work is very fundamental to success.
He taught me the fundamentals of the job.
Trang 20 Solar stove
/'səʊlə(r) stəʊv/ (n):
Bếp năng lượng mặt trời
Stove which consumes the energy from the sun
Trang 21Ex: They use the energy from the
wind to generate electricity.
Generation (n):
the production of something
(heat,
electricity)
Trang 22 Respiratory
Hô hấp
/re’spəreɪtc:rɪ/ (adj):
connected with breathing
Ex: Respiratory disease
Flu is a respiratory disease
Respiration (n)
Respire (v)
Respirator (n)
Trang 23 Expose sb/sth to sth
/ɪk'spəʊz/
: to put sth/ sb in a place or situation where they are not protected from sth harmful or unpleasant
Phơi cái gì/ai ở nơi mà không được bảo vệ, không an toàn
Be exposed to sth
Ex: Babies should not be exposed to strong sun light.
Trang 25Fundamental (adj) cơ bản, cơ sở
Gather (v) hái, lượm, thu thập
Fuel wood = firewood: củi
Dim (adj): lờ mờ
Battery(n) pin bình trữ điện
=> Dry cell battery : pin khô
Prospect (n) triển vọng
Arduous (a) khó nhọc
Solar system: hệ mặt trời
Clinic (n) bênh viện
Trang 26Energy is fundamental to poor people-the one-third of humanity that does not have modern energy supplies like electricity, with which their life could
be improved What are their energy sources now? What new sources may help them?
MR John Ngujuna and his family live on a small farm near Nakuru in Kenya His wife, children, and grandparents spend hours each day gathering fuel wood They buy over four liters of kerosense a week for the lamps that provide dim light in their house at night They spend a lot of their spare crash on dry cell batteries for their radio and flashlights
For many families in Kenya, the prospect of better energy services would mak their life different An improved solar stove for cooking would reduce the
arduous works of firewood collection, and women and children would not be
breathing thick smoke while the cooking was going on Small solar systems in the village would also mean that the clinic could operate at night and urgent
operation could be carried out Very small solar lighting systems would allow
children to study in the evening and the school to run literacy classes for adults Solution such as solar stoves and lanterns are now introduced to a lot of Kenyan families in remote areas
Trang 27For many people living in rural areas in other developing countries of the world, biogas is the largest energy resource available, without which their life would be very difficult The main use of biogas is for cooking and heating As biogas is smoke-free, it help solve the
problem of indoor air pollution, hence preventing respiratory diseases among women and children, who are exposed to wood-burning stove smoke far more than men Plant waste and animal cost almost
nothing, yet they are valuable sources for generating power to pump water or run machines that farmers grains with.
The tendency to use renewable energy sources is on the increase when non-renewable ones are running out In the near
future, people in the developing world may use wind or sea waves as the environment-friendly energy sources – who knows?
Trang 28EXE RCI
SES
B Solar System and Biogas
2
3 C Sources of Energy for the Poor
D Advantages of Renewable Energy Sources
4
Trang 29b) In which paragraphs are the following ideas discussed?
1 Smoke affects people’s health
2 Non-renewable sources are being used up
3 The new sources helps farmers do their work better
4 The new sources generates electricity for poor people
5 The new sources may save people’s lives
6 The new sources is not costly
7 People may use wind power to serve their life in the future
8 People don’t have electricity
C, D
E
D
C, D C
D
E
A, B
Trang 31Answer the question
1 Why are solar systems and biogas introduced to poor people?
2 What energy sources does John Ngujuna’s family use to
sustain their life?
Saving human energy; solving the problem of indoor air
pollution; providing better health care and education.
Pollution-free/ smoke-free and cheap It helps solve the
problem of indoor air pollution and prevent
Trang 32Cities: electricity, natural gas (sometimes kerosene and coal).
Rural areas:wood, straw, plant stalks, coal, kerosene, biogas.
Moutainous regions: wood, solar energy (using solar stove).
Trang 34Source of energy in the future]