人教版（2019）选择性必修 第二册Unit 1 Science and Scientists Reading and Thinking 课件(共21张PPT)

(共21张PPT)
To raise new questions, new possibilities, to regard old problems from a new angle, requires creative imagination and marks real advance in science.
Unit 1 Science and Scientists
提出新的问题，发现新的可能，从新的角度审视已存在的问题，这些需要创造性的想象力，并标志着科学的真正进步。
——阿尔伯特·爱因斯坦 &利奥波德·英费尔德
Unit 1 Science and Scientists
Reading and Thinking
John Snow Defeats “King Cholera”
Besides coronavirus, what other kinds of epidemics（流行病） do you know
Bird-flu
malaria
plague（鼠疫）
Ebola
Smallpox（天花）
Cholera
John Snow Defeated “King Cholera”
John Snow (15 March 1813 – 16 June 1858) was a British physician and a leader in the adoption of anaesthesia and medical hygiene.
约翰·斯诺(1813年3月15日- 1858年6月16日)，英国内科医生，麻醉和医疗卫生的领导者。
John Snow
戴手套
John Snow Defeats “King Cholera”
What does “ King ” imply in the title
The name of cholera
The causes of cholera
Cholera spread fast
Cholera is powerful and hard to cure
Pre-reading
John Snow Defeats “King Cholera”
Who
How
What
1. Who was John Snow
2. What is King Cholera
3. How did John Snow defeat King Cholera
What's the main idea of the text
A．The cause of cholera was polluted water.
B．John Snow was a well-known doctor in London.
C．The source of all drinking water should be examined.
D．John Snow did some research and helped to solve “King Cholera”.
Fast-reading
Para1
Para 2
Para 4
Para 5
John Snow desire to destroy cholera.
He decided to prove the second theory was correct.
John began his study by marking on the map .
Finally，he found out the truth of infection of cholera.
John Snow ‘s great contributions .
Para 3
Read passage quickly and match the main ideas.
Cholera
Joh Snow
It's one of ______________________ in the world, because it causes _______________________________.
________________ _____ (when), an outbreak of cholera hit ________,millions of people ____________________.
He rose to become _______________ , and even __________ Queen Victoria when she gave birth.
John Snow became ___________ because no one knew _____________________________.
However, he had a desire to ______________ once and for all.
the most feared diseases
severe diarrhoea and dehydration and even death .
In the early 19th century
Europe
died from the disease
frustrated
how to prevent or treat cholera
a famous doctor
attended to
destroy cholera
Para 1 : Read the Para quickly and fill in the mind map.
Research
Background
Put the seven research stages in order.
analyze the results
ask a question
collect data
think of a method
find a problem
find supporting evidence
draw a conclusion
Para 2&3 :
Para.2 & 3：Find the seven stages
Para.2
Stage 1 find a problem
contradictory
to agree with or support an opinion, a theory, etc.
proof
subscribe to
Para.2
Stage 2 ask a question
investigate
determined
to carefully examine the facts or find out the truth or how it happened
Para.2 & 3：Find the seven stages
Para.3
Stage 3 think of a method
mark
exact
Para.2 & 3：Find the seven stages
Para.3
Stage 4 collect data
Para.2 & 3：Find the seven stages
Para.3
Stage 5 analyze the results
multiple
However
no deaths
the water pump was to blame
suspect
Para.2 & 3：Find the seven stages
Para.3
Stage 6 find supporting evidence
What’s more
Para.2 & 3：Find the seven stages
Para.3
Stage 7 draw a conclusion
As a result of this evidence,...
announce
Para.2 & 3：Find the seven stages
Snow had the_______ of the pump removed.
E
Para.2 & 3：Read for detailed information
It was believed that cholera was caused by _______ or germs in _____________.
A
Snow __________
_______the places where people who
_____ had lived.
B
bad air
food or water
marked on
died
The pump water carried____________.
D
cholera germs
handle
a map
Steps in the research
Many deaths occurred
near the __________
in Broad Street.
Some people _______
drunk the water from
the pump, and lived.
A woman and her
daughter died in another part of London after ____________ ______________.
C
water pump
had not
from the pump
drinking water
Snow had the_______ of the pump removed.
E
It was believed that cholera was caused by _______ or germs in _____________.
A
Snow __________
_______the places where people who
_____ had lived.
B
bad air
food or water
marked on
died
Many deaths occurred
near the __________
in Broad Street.
Some people _______
drunk the water from
the pump, and lived.
A woman and her
daughter died in another part of London after ____________ ______________.
C
water pump
had not
from the pump
The pump water carried____________.
D
cholera germs
handle
a map
Research method
theories
process
evidence
conclusion
solution
drinking water
Para.2 & 3：Read for detailed information
1. What caused the outbreak of cholera in London
A. Bad air B. Water infected by raw waste
C. Polluted air D. Water polluted by the air
2.Why was John Snow called the father of modern epidemiology(流行病学）
He helped people know how to prevent cholera.
He transformed the way scientists study diseases in use of map and statistics.
Para.4& 5：Read for detailed information
What qualities and scientific spirits do they have in common
strong sense of social responsibility
knowledgeable
courage to face difficulties
committed
critical thinking
creativity
questioning mind
care for life