资源简介

(共21张PPT)
1. Get information about how John Snow defeated cholera;
2. Figure out the stages for John Snow's scientific research;
3. Talk about the significance of John’s work and his qualities and scientific spirits.
Learning Objectives
In this class, you will be able to:
Great secientists we have learnt before
Tu Youyou
Yuan Longping
Einstein
Lead-in
④
Besides coronavirus, what other kinds of epidemics （流行病）have you heard of
bird-flu（禽流感）
malaria（疟疾）
plague（鼠疫）
Ebola(埃博拉)
①
②
③
Who Helped Defeat Malaria
Lead-in
Watch the video and leran about the symptoms (症状) of Cholera and how it spraed.
Lead-in
dehydration (缺水)
severe vomiting(呕吐)
diarrhea(腹泻)
It begins in the stomach and a severe case can lead to death without immediate treatment.
What are the symptoms (症状) of Cholera？
Lead-in
John Snow Defeats “King Cholera”
The text is mainly about ____________ and _______ he defeated king cholera.
John Snow
how
Pre-reading
Discuss the following stages of scientific research in groups. What order would you put them in
Stages of Scientific Research
______ analyse the results ______ ask a question
______ draw a conclusion ______ collect data
______ find a problem ______ find supporting evidence
______ think of a method
Pre-reading
Read the text quickly; match the main ideas.
Para1:
Para2:
Para3:
Para4:
Para5:
John Snow decided to prove the second theory.
John Snow desired to destroy cholera.
John Snow’s contributions.
John Snow began his study by marking on the map.
Truth of the infection of cholera.
Fast-reading
Read Para. 1 and finish the information cards
John Snow
King Cholera
Identity:
Symptoms:
Consequence:
Occupation:
Nationality:
Desire:
one of ________________ in the world
_______ of people died from it when it hit Europe in the early 19th century
_____
_______ when she give birth)
the most feared diseases
severe diarrhoea, dehydration, and even death
Britain
Millions
A famous _______ (who even attend to _____
doctor
Queen
Victoria
To destroy cholera once and for all.
Detailed-reading
1. What caused cholera
Cholera was caused by _______.
Cholera was caused by ________________________________ .
bad air
an infection from the germs in food or water
Para2: Find a problem
Detailed-reading
2. Which theory is correct
Theory one:
caused by ________
Theory two:
caused by _______

bad air
germs
John Snow subscribed to the ________ theory.
second
Para 2: Ask a question
More proof is needed
Detailed-reading
What method did he use
How did he finally find out why
marking on a map
Analyze the map
and circle the key areas with your group members.
1.Which houses had more than 4 deaths in Broad Street
2.Which houses had no death in Broad Street
They drunk the water from the pump.
They drunk free beer from the Public house.
pub
multiple deaths
happened near
the water pump.
16, 37, 38 and 40
14, 20, 21, 25, 27, 28 and 34
Para 3: Think of a method
Detailed-reading
The cause of a mother and her daughter’s death. (pump water)
conclusion
The pump water carried cholera germs.
solution
Removed the handle of the pump.
What’s the evidence
for Snow’s suspecting
What’s the conclusion
Para 4& 5: Find supporting evidence & Draw a conclusion
Detailed-reading
Water companies began to sell clean water.
The threat of cholera around the world decreased.
He helped people know how to prevent cholera.
Snow transformed the way scientists study diseases.
What contributions did John Snow make
The Father of Modern Epidemiology
Read Para.5 and answer the questions.
Detailed-reading
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
____________.
conclusion
evidence
E: The _______ of the pump was removed.
process
solution
handle
theories
air
food or water
marked on the
died
water pump
hadn’t
drinking water
cholera germs
Check the answers on Page 3.
conclusion evidence process solution theories
map
from the pump
Post-reading
Para.1
brave
expert
professional
determined
caring, socially responsible
What scientific spirits can we learn from John Snow, according to the passage
Post-reading
rigorous
(严谨的)
creative, innovative
tireless, diligent
Post-reading
Despite the danger of infection, they devotethemselves to scientific research.
In order to keep away from diseases, what should we do in our daily life
avoid gathering
wash our hands
do sports
eat clean food
Deep-thinking
To raise new questions, new possibilities, to regard old problems from a new angle requires creative imagination and marks real advance in science.
----Albert Einstein& Leopold Infeld
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
Quote：
Post-reading

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