人教版(2019)选择性必修第二册Unit 1 Science and Scientists Reading and Thinking(共20张ppt,内镶嵌音频)

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名称 人教版(2019)选择性必修第二册Unit 1 Science and Scientists Reading and Thinking(共20张ppt,内镶嵌音频)
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资源类型 教案
版本资源 人教版(2019)
科目 英语
更新时间 2024-02-23 01:42:06

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(共20张PPT)
Reading and Thinking
John Snow Defeats
“King Cholera”
Before-reading
“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

What can you think of when you look at these pictures
Mask up
Get vaccinated
Nucleic acid tests
Positive measures are taken to fight against Covid-19.
Besides coronavirus(冠状病毒), what other kinds of epidemics(流行病)do you know
Choleara
Add Something At Here
Add Something At Here
Add Something At Here
Add Something At Here
Add Something At Here
Add Something At Here
Predicting: What will be talked about
John Snow Defeats“King Cholera”
Who
How
What
John Snow Defeats “King Cholera”
Read for the main idea
(who)
Para.1
(how)
Para.2-3
(what)
Para.1
The truth
Para.4
Results and significance
Para.5
John
Snow
cholera
Who A ________ doctor who even attended _______________ when she gave birth.
What He had a desire to ________________ once and for all.
famous
destroy cholera
What It used to be one of_________________________________________
because it causes______________________________________________.
When _____________________________________________________________.
Where _____________________________________________________________.
What consequence Millions of people _______________________________.
the most feared diseases in the world
severe diarrhoea, dehydration and even death
In the early 19th century
Europe
died from the disease
Queen Victoria
“King Cholera” = ________ cholera
deadly
While Reading:
Para.1
background
collect data
think of a method
analyse the results
ask a question
draw a conclusion
find a problem
find supporting evidence
1
4
2
6
7
3
5
Read the passage again and discuss the following stages of scientific research in groups. What order would you put them in
Understand the questioning mind
While-reading
Read for the imformation.
Para 2&3 How
1. What problem did the two theories try to solve
To explain how Cholera spread.
2. What were the two theories and which did John Snow agree with
Two contradictory theories
Theory one:
caused by ________
Theory two:
caused by _______
bad air
germs
Snow subscribed to the second theory.

problem
While-reading
Read for the imformation.
Para 2&3 How
3. What’s the proof he found
question
While-reading
Read for the imformation.
Para 2&3 How
What method did he use
How did he finally find out why
marking on a map
Analyze the map with your group member.
Which houses had more than 4 deaths in Broad Street
Which houses had no death in Broad Street
While-reading
Read for the imformation.
Para 2&3 How
Any other evidence
What result did he get
Snow suspected that the water pump was to blame.
A woman and her daughter died in another part of London after drinking water from the pump.
John Snow was able to announce that the pump water carried cholera germs.
John Snow had the handle of the pump removed.
The disease was stopped.
Read for the stages.
Think of a method
Collect data
Analyse the results
Find supporting evidence
Draw a conclusion
Find a solution
What caused the outbreak of cholera in London in 1854
The truth was that the water from the Broad Street pump had been infected by waste.Moreover, Snow was later able to show a link between other cases of cholera and the different water companies in London. Some companies sold water from the River Thames that was polluted by raw waste. The people who drank this water were much more likely to get cholera than those who drank pure or boiled water.
reveal the truth
Para.4
Through Snow’s tireless efforts, water companies began to sell clean water, and the threat of cholera around the word saw a substantial decrease. However, cholera is still a problem. Each year, millions of people around the world get cholera and many die from it. Fortunately, we now know how to prevent cholera, thanks to the work of John Snow. Moreover, in his use of maps and statistics, Snow transformed the way scientists study diseases. For this reason, Snow is considered the father of modern epidemiology.
results and contributions
Para.5
Was cholera destroyed completely?
What contributions did John Snow make to science?
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
__________.
Match the following headers with the letters from the chart above. Write A-E in the blanks.
conclusion
evidence
handle
process
solution
theories
Read the passage again and complete the chart below.
E: The _______ of the pump was removed.
air
food or water
marked on
died
water pump
hadn’t
drinking water from the pump
cholera germs
Post-reading
In order not to get infected with disease, what should we pay attention to in our daily life.
Drink boiled water.
Remember to wear a mask when going out.
Heat the food left overnight.
Wash your hands often.
Cook raw food thoroughly.
Deal with rubbish timely and properly.
Further thinking:
Thinking
What makes John Snow a great scientist What qualities do you need to be a scientist
responsible
knowledgeable
brave/courageous
committed/devoted/dedicated
critical thinking
creative
questioning mind
passionate
curious
ambitious
determined...