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(共26张PPT)
Defeats King Cholera
1. Get information about how John Snow defeated cholera;
2. Figure out the stages for John Snow's scientific research;
3. Extract John’s qualities and scientific spirits.
Learning objectives
You will be able to:
What disease can you think of when you look at these pictures
COVID-19
Activity1 lead-in
Lead-in
History repeats itself!
In 1854,there was also an epidemic disease.
cholera
What are the symptoms (症状)of Cholera？
What are the symptoms (症状)of Cholera？
diarrhea
severe vomiting
dehydration
Lead-in
Lead-in
Let’s read the text and find out the solutions!
JOHN SNOW DEFEATS “KING CHOLERA”
Who was John Snow
How did John Snow defeat King Cholera
What is King Cholera
Activity2 prediction
analyze the results
ask a question
collect data
think of a method
find a problem
find supporting evidence
draw a conclusion
Can you put the research stages in right order
Activity2 prediction
Activity3 Read Para1 and finish the information cards.
John Snow
King Cholera
Identity:
Time and place:
Result:
Occupation:
Nationality:
Desire:
one of ______________________ in the world
Millions of people _____________.
the most feared diseases
Britain
died from it
A famous _______ (who even attend to _____________)
doctor
Queen
Victoria
to destroy cholera once and for all
___________________________
__________________________
In the early 19th century/ Europe
__________________________
Activity 4 Read para2 and find the theories.
Stage 1 find a problem
What were the 2 contradictory theories
Theory 1:
Cholera was caused by ________
bad air
Theory 2:
Cholera was caused by ________
an infection from germs
Which theory did he subscribe to
theory. It was correct, but he still needed proof. Consequently, when an outbreakof cholera hit London in 1854, Snow began to investigate. He discovered that in twoparticular streets the cholera outbreak was so severe that more than 500 people died inten days. He was determined to find OUt why.
Para. 2
It was correct, but he still needed proof. Consequently, when an outbreak of cholera hit London in 1854, Snow began to investigate. He discovered that in two particular streets the cholera outbreak was so severe that more than 500 people died in ten days. He was determined to find out why.
Stage 2: ask a question
Why did so many people die in these 2 streets
What did John Snow discover when another outbreak hit London
Activity5 Read para3 and mark on the map.
Stage3: think of a method
1. Which house had more than 4 deaths in Broad Street What similarity do they have
2. Which house had no deaths in the streets ？ Why
What method did John Snow use
mark on a map
Notes:
: multiple deaths
: no death
: bar
: water pump
Para. 3
Stage 4: collect data
1. Which house had more than 4 deaths in Broad Street What similarities did they have
2. Which house had no deaths？ Why
Para. 3
Stage 5: analyze the results
Snow suspected that _____________was to blame.
the water pump
_______________________died in another part of London after drinking water ________________.
stage7:draw a conclusion
The pump water____________________
solution
He had _____________________removed .
A woman and her daughter
carried cholera germs.
the handle of the pump
from the pump
Activity6
Find supporting evidence, conclusion and the solution.
stage 6 :find supporting evidence
A: It was believed that cholera was caused by bad ____ or germs in _______________.
B:Snow___________________the places where the people who _____ had lived
C: 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 ________________________.
D: The pump water carried
____________.
E: The _______ of the pump was removed.
handle
air
food or water
marked on the
died
water pump
hadn’t
drinking water from the
cholera germs
map
pump
Activity7 Read Para.2-3 again and complete the chart below.
conclusion
evidence
process
solution
theories
Activity8 Read para4 and explore the truth.
What caused the outbreak of cholera in London in 1854
The water from the Broad Street pump had been badly infected by waste.
Water companies sold water from River Thames that was polluted by raw waste.
Activity9 Read para5 and answer the question.
What contributions did John Snow make
Was cholera destroyed completely
No
The father of modern epidemiology
【King Cholera】
Each year, millions of people around the world get cholera and many die from me!
Cholera is still a problem.
Cook raw food
1.How can we prevent the cholera
Activity10 Discussion
keep flies away
throw rubbish
timely
build
toilets
wash hands often
wash & peel the food
drink and use safe water
cook raw food thoroughly
Activity 10 discussion
2. What qualities makes John Snow a great scientist
responsible
brave/courageous
committed/devoted/dedicated
critical thinking
creative
questioning mind
curious
determined...
innovative
What spirits do Chinese scientists have in common
strong sense of social responsibility
courage to face difficulties
dedication
critical thinking
creativity
questioning mind
...
It is the spirit that shapes them.
it is the spirit that shapes our motherland.
“A nation thrives(繁荣) when its science and technology thrive, and a strong science and technology sector is the corner stone(基石) of a strong nation.”
——President Xi
The future of the world is in the hands of yours!
backbones
脊梁
Compulsory: Write a passage to introduce the scientist that you admire most.
Optional: Search some information about Chikungunya(基孔肯雅热）
homework
Thank you!

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