译林版（2020） 必修第三册 Unit 4 Scientists Who Changed the World Extended Reading课件（14张）

(共14张PPT)
The value of science
Lead in
Does science always make good things for everybody？
chemistry
biochemistry
information technology
Science is a double-edged sword.
Lead in
Does science always make good things for everybody？
Advantages
Life expectancy and the overall health of human beings have been greatly improved due to advances in ______________.
Advancements made in technologies that produced things like hybrid rice, have contributed to ______________.
Owing to__________and_____________ developments, as well as the invention of the ________, the world has become a global village.
medical science
food security
transport
engineering
Internet
Lead in
Does science always make good things for everybody？
Disadvantages
Military science is often misused in _______________, which causes countless casualties.
Addiction to and reliance on some high-tech products have made us lazy.
Science has industrialized society, which also puts enormous pressure on_________________________.
natural and the environment
conflicts and wars
Analyze the structure
Introduction to the topic(1-2)
When I was young, I thought science was _______.
During the war, I found science was obviously________.
useful
serious
Is there some evil involved in science？
What is the value of science
Three values of science (3-6)
Duty of scientists(7)
2._______________________
3._______________________
provide the intellectual enjoyment
enable us to doubt
enable us to do and make all things
1.______________________
Analyze the structure
In these paragraphs, Feynman used some expressions with negative meaning to point out that there may be some “evil involved in science”.
Detailed infomation para 1-2
Why did Feynman think long and hard about this question
On the one hand, he _____ science and had _______ himself to it; on the other hand, he saw some _______ results brought by this work on ____________--- the __________of people and the _____to our future.
loved
devoted
He could not accept the fact that what he loved and was devoted to was evil. Therefore, this sentence reflects his______feelings, which caused Feynman to stop and think about science.
terrible
atomic bomb
destruction
threat
mixed
Detailed infomation para 1-2
Detailed information para. 3
What do these “it” refer to
making good things
scientific knowledge
According to Feynman, who should be blamed if the power of science is used to do something bad
Detailed information para. 3
It is not the science, but the man misusing it that should be blamed.
Detailed information para.4
The keyword of this paragraph is ____________________.
Then can you find the expressions with positive meaning Feynman used to creat the atmosphere of “enjoyment”
intellectual enjoyment
“We turn over each new stone to find unimagined strangeness leading on to more wonderful questions and mysteries.”
new stone refers to___________________
“turn over each new stone” refers to the process of ______________________.
difficult/ problem/confusion.....
discovery/exploration
It is an analogy (类比).
Detailed information para.4
Detailed information para.5-6
When a scientist doesn't know the answer to a problem, what changes would his mind experience
The scientist has a lot of experience with ignorance and doubt and uncertainty, and this experience is very important.
never stop the footsteps towards the truth
Detailed information para.7
1.What does Feynman call on the scientists to do
2. What rhetorical device(修辞）is used in the last paragraph What effect does it have
.......to declare the value of this freedom, to teach .......and to demand......
The parallel structure is applied here with the use of three to-infinitives.
It has a powerful effect to make the audience aware of the significance of the freedom of thought and the value of doubt.