Reference, support your presentation

1. Teaching
Courseware
J I A O X U E K E J I A N
S E P T E M B E R
X X X X X
WELCOME TO MY
PRESENTATION

2. The internet
and email
change the way
the world
works While inventing
cars and planes
are considered
as revolution
in human
movement.

3. ANYTHING
S
ELSE

4. Today, I would like
to present an
invention that has
changed our
lives...

5. IT'S THE
LIGHT
BULB...

6. Before humans came to electric lights, they
started with candles, oil lamps invented by
the ancient Egyptians.

7. Thomas Alva Edison
(February 11, 1847 – October 18,1931)
was an American inventor and businessman.
He developed many devices
that greatly influenced life
around the world, including
the phonograph, the motion
picture camera, and a long_x0002_lasting,
practical
electric light bulb.

8. Many new types of
electric luminaires
appear with outstanding
advantages ...
Technology is changing
day by day, leading to
the change of electric
light bulbs...

9. A LIGHT BULB is one of the
important invention that brightens
millions of houses and buildings
around the world.

10. Thanks
for
listening!