energy
energy
makes
the
world
go,
it
is
indispensible
to
both
animal
life
and
human
life.
we
get
heat
energy
from
the
food
we
eat,
light
energy
from
the
sun
and
electricity
from
water.
in
the
hot
summer
when
there
ia
a
power
outage
we
feel
all
the
more
the
need
for
electric
energy
which
powers
the
electric
fan
md
air-conditioner.
there
are
different
sources
of
energy.
the
rivers
and
streams
are
a
good
source
for
electrie
energy.
the
san
provides
us
with
light,
heat
and
electricity.
there
is
also
sound
energy
in
the
radio
transformed
from
electric
energy.
the
energy
can
be
changed
from
one
form
to
another.
it
can
never
be
exhausted
nor
reproduced.
it
just
goes
on
changing
in
cycles.
it
is
important
for
us
to
make
use
of
energy.
solar
energy
is
being
made
to
generate
electricity,
to
cook
and
to
bathe.
atomic
energy
is
used
in
industry
and
aviation
and
many
other
fields.
we
are
now
doing
our
best
to
inake
energy
serve
our
people
in
every
way
possible.
能
能量使世界运转。动物和植物的生命都离不开能量。我们从所吃的食物中获取热能,从太阳和水力发636f707962616964757a686964616f31333433623762电中获取光能。在炎热的夏天,当断电时,我们更感需要能驱动电风扇和空调器的电能。
有不同的能源:江河溪流是电的良好能源;大阳可提供光能,热能和电能。在无线电传输中,电能可转换为声能。能量可以从一种形式转接到另一种形式,它不会耗尽也不会创生,而是不断地循环往复。
对我们来说,充分利用能量很重要。人们正在利用大阳能发电、做饭、洗浴。原子能被用于工业、航空和其他领域。我们正在尽一切可能让能源服务于人类。
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