北师大版（2019）选择性必修第四册 Unit12 Innovation Reading Club2 精品课件(共14张PPT)

(共14张PPT)
Simple Inventions
That Changed the World
Unit 12 Innovation
Reading club 2
Who When and where were them invented and developed Working principles
How have these inventions changed our lives
Read and draw a mindmap
of the 3 simiple inventions
the ancient Egyptians
water clock
Sundial
/ s nda l/
日晷
Gnomon
/ n m n/
圭表
Clepsydra
/ kleps dr /
漏刻
The accurate mechanical clock
pendulum clock
/ pend l m/
Compressed gases in metal coil inside the refrigerator suck the heat out of the surrounding air as the gases expand.
Elevators have changed the city skylines.
The skyline is the line or shape that is formed where the sky meets buildings or the land.
Inventions When Where Inventors Changed our lives
the clock
in the 16th and 17th centuries
Europe
European inventors
almost every part of our day-to-day lives is governed by time and our ability to measure it accurately
Inventions When Where Inventors Changed our lives
the refrigerator
1805
Oliver Evans
it’s a common object in most homes and people would find it difficult to imagine living without it
Inventions When Where Inventors Changed our lives
the elevator
1880
Werner von Siemens
Elevators have changed not only our lives by making it possible to live in bigger and taller buildings, but also the city skylines.
Germany
What is the writer inferring in the last paragraph
The writer is inferring that throughout our daily routine we don’t truly acknowledge the benefit of these three inventions and how much inspiration and hard work it took to create them.
Which one of the three inventions do you think has changed people’s lives the most Why