北师大高中英语选修七Unit20Lesson3《ScientificBreakthroughs》课件

Some Discoveries\ Significance pioneers Inventions
Albert Einstein
2. E=mc2 .
It showed how a small piece
of mass could produce an
unbelievable amount of
3. energy .
5. Hubble discovered that our galaxy is bigger than we thought it was. T
6. Fleming had been studying bacteria in his
laboratory when the discovery happened. F
It showed time, mass and length 4
.
according to our experience of them.
Edwin Hubble
5 like the
one we live in
It proved that the universe was vastly 6 . than had previously been thought.
Simple outline
introduction
Body
Some great pioneers of science and their inventions or discoveries
Conclusion
A brief introduction of scientific breakthroughs in the 20th century
Some pioneers Discoveries\ Inventions Significance
2
.
Albert Einstein Theory of relativity
It showed how a small piece of mass could produce an unbelievable amount of 3 .
Alexander Fleming
Penicillin
It saved
7
.
Eckert and Mauchly
The first computer
It was produced to increase the the US Navy’s missiles.
8 of
Percy Spencer
9
.
It helps us prepare meals in minutes.
1. Einstein was at work when he thought of the equation “E=mc2”.
2. Einstein participated in the program that developed the nuclear bomb.
3. Einstein observed changes in time, size and mass.
It proved that the universe
was vastly 6. thlaarngheard
previously been thought.
Alexander Penicillin
Fleming
It saved 7. millions of liv.es
Eckert and Mauchly
hospital when you die.
Are these statement true or false according to the text or is there no information?
1. Einstein was at work when he thought of the equation “E=mc2”. F
Theory of relativity
It showed time, mass and
length 4.acchcoarndgineg to our
experience of them.
Reading Task:
Edwin Hubble
5.Nlikeewtghaelaoxnieeswe live in
1.The equation E=mc2 a)Scientists worked
2.Penicillin 3.The first computer
together as a team
b)There was a lucky accident
c)A scientist did research for many years
Alexander Fleming, a Scottish biochemist, discovered Penicilchly and J. Presper Eckert
The designer of ENIAC, the first commercial computer made in the United States.
高中英语课件
（金戈铁骑 整理制作）
Unit 20 Lesson 3
Scientific Breakthroughs
Some discoveries or inventions in the 20th century:
Means of transport:
WrightBrothers
The change in communication:
original goal. 10. The first computer was extremely difficult to
program. 11. The scientist who discovered microwaves invented
microwave ovens. 12. Today it is possible to donate your heart to
Edwin Hubble
Edwin Hubble was an American astronomer. His most important discovery was the expanding universe.
Hubble space telescope
Alexander Fleming
hospital when you die. T
Reading Task:
In the 20th century, many amazing discoveries were made in medicine, communications and transport, let alone our knowledge of 1 .
ParPaa.r1a.1
Para.2 Para.3 Para.4 Para.5 Para.6 Para.7 Para. 8
The significance of
these breakthroughs
Discussion:
It is predicted（预言）that there will be 5 scientific breakthroughs in the 21st century. What do you think will be the 5 scientific breakthroughs and how will they influence our life? Have a discussion and voice your opinion.
Without these
10
completely different world.
in science and technology, we would have had a
Reading Task:
In the 20th century, many amazing discoveries were made in medicine, communications and transport, let alone our knowledge of 1. the world and spa.ce
The first computer
It was produced to increase the 8.oaf cthceurUaScyNavy’s missiles.
Percy 9. Microwav.es It helps us prepare meals in
Spencer
minutes.
Without these 10. inbsreciaekntcheroaungdhtsechnology, we would have had a completely different world.
Neil Alden Armstrong was the first person to set foot on the Moon.
This is my personal one small step, it was a great step of mankind.
The first artificial satellite, Sputnik 1, was launched by the Soviet Union in 1957.
4. Hubble studied the universe for over twenty years.
5. Hubble discovered that our galaxy is bigger than we thought it was.
6. Fleming had been studying bacteria in his laboratory when the discovery happened.