人教版(2019)选择性必修 第二册Unit 1 Science and Scientists Reading and Thinking 课件(共35张PPT)

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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 课件(共35张PPT)
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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 2023-11-25 20:14:56

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(共35张PPT)
UNIT 1 SCIENCE AND SCIENTISTS
Reading and Thinking
Understand the questioning mind
Teaching objectives:
行业PPT模板http:///hangye/
To know about John Snow and cholera.
To summarize the main idea.
To find out the stages of scientific research in this passage
01
Pre-reading
take temperature
run nucleic acid tests(核酸检测)
get vaccinated
(接种疫苗)
Are you familiar with these situations
We have took measures to fight against coronavirsus!
Besides coronavirus, what other kinds of
epidemics (流行病)have you heard of
Discuss the stages of scientific research in groups.
Draw a conclusion Think of a method
Collect results Analyse the results
Ask a question
Find a problem
Find supporting evidence
Can you put them in order and translate them into Chinese
Page2 activity1
Seven stages
find a problem
发现问题
ask a question
提出问题
think of a method
思考方法
collect data
收集数据
analyze the results
分析结果
find supporting evidence 收集证据
draw a conclusion
得出结论
Read the title and predict.
John Snow Defeats “King Cholera”
Who
How
What
02
Fast-reading
1.What’s the main idea of the passage
A.How John Snow found the cause of cholera and defeated it.
B.The cause of cholera was polluted water.
C.The source of all drinking water should be examined.
D.John Snow was a well-known doctor in London.

Fast-reading for main ideas
Para1
Para 2
Para 4
Para 5
John Snow desired to destroy cholera.
John Snow decided to prove the second theory.
Snow began his study by marking on the map
and the process.
Truth of the infection of cholera
Snow's contributions
Para 3
Read the passage quickly and get the main idea of each paragraph.
Para1
Para 2
Para 4
Para 5
Para 3
Fast-reading for main ideas
03
Careful-reading
John Snow
Who A doctor who even attend to ____________________
when she gave birth.
What He had a desire to _____________________ once and for all.
British
Queen Victoria
destroy cholera
What It's one of __________________________________ in the world, because it causes .
When ___________________________
Where _________
What’s the result ___________________________________________
the most feared diseases
severe diarrhoea, dehydration and even death
In the early 19th century
Europe
Millions of people died from the disease
Read para.1 quickly and fill in the mind map.
Cholera
Read para.2 carefully and answer the questions.
proof
1. What are the two theories
investigate
2.Which of the following theories did John Snow believe
A cloud of dangerous gas would float around until it found its victims.
People absorbed cholera germs into their bodies with their meals.
People got infected with cholera because of polluted air.
People suffered from cholera because they were not clean.

Para.3
Stage 3 think of a method
Stage 4 collect data
Stage 5 analyze the results
Stage 6 find supporting evidence
Stage 7 draw a conclusion
Find the seven stages in Para. 3
Para.3
Stage 3 think of a method
mark
map
Find the seven stages in Para. 3
public house
酒吧
death
numbers of houses
Observe the map and analyse it with questions
Para.3
Stage 6 find supporting evidence
Multiple deaths happened here.
No death happened here.
Public house
Clue 1: They drunk the water from the pump.
Clue 2: They drunk free beer from the Public house.
Water pump
Clue 3: She had the water from the pump delivered to her house every day.
Why did a woman and her daughter died of cholera after moving away from Broad Street?
Which house numbers had more than 4 deaths in Broad Street ? Why
Which house numbers had on deaths in Broad Street ? Why
Para.3
Stage 7 draw a conclusion
As a result of this evidence...
announce
Task2. Read Para.2 and 3 carefully and finish activity 3 on Page3.
A. It was believed that cholera was caused by _______ or germs in ______________.
D. The pump water carried _______________.
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
__________________________.
B. Snow began by ____________
________________ the places where people _____________.
E. The _________ of the pump was removed.
bad air
food or water
marking on the map
died had lived
water pump
had not
drinking water from the pump
cholera germs
1. conclusion__
2.evidence__
3.process__
4.solution__
5.theories__
D
C
B
E
A
handle
Complete activity 3 and 4 on P3.
Read Para.4 and 5 carefully to answer the four questions.
What caused the outbreak of cholera in London in 1854
Was cholera destroyed completely
How can we prevent cholera
Why was John Snow considered the father of modern epidemiology
1. What caused the outbreak of cholera in London in 1854
The water which came from the River Thames and had been infected by waste.
Para. 4:
The truth was that the water from the Broad Street pump had been infected by waste. … Some companies sold water from the River Thames that was polluted by raw waste.
Read Para.4 and 5 carefully to answer the four questions.
2. Was cholera destroyed completely
No.
Para. 5:
Through Snow’s tireless efforts, water companies began to sell clean water, and the threat of cholera around the world 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. …
Read Para.4 and 5 carefully to answer the four questions.
However
3. How can we prevent cholera
By drinking pure or boiled water.
Para. 4:
The truth was that the water from the Broad Street pump had been infected by waste. … The people who drank this water were much more likely to get cholera than those who drank pure or boiled water.
a.干净的
Read Para.4 and 5 carefully to answer the four questions.
4. Why was John Snow considered the father of modern epidemiology
He transformed the way scientists study diseases in use of map and statistics.
Para. 5:
… 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 epidemiology
Read Para.4 and 5 carefully to answer the four questions.
For this reason, Snow is considered the
father of epidemiology
04
Post-reading
1.How did John Snow find out the cause of the disease
By living in the area where cholera broke out.
By marking on a map the exact places where all the dead people had lived.
By telling the terrified people how to prevent it.
By saving the dying people suffering from cholera.

2.After he made further investigations,John Snow found .
cholera multiplied in the air
people absorbed this disease into their bodies with their meals
the water from the polluted pump was to blame
flies spread the disease

3.Why did Snow suspect the water pump was to blame
A.Broad Street witnessed a lot of deaths.
B.It was clear that the water in the pump was polluted.
C.A woman and her daughter moved away.
D.Those people working in the pub survived.

4. Where does this passage probably come from
A.A newspaper.
B.A medical report.
C.A book review.
D.A TV interview.

1. What questions would you ask to get the following answers
Q: What ______________________________
A: Snow thought that cholera was caused by germs in food or water.
Q: Why _________________________________________
A: Snow had the handle of the pump removed so that it could not be used.
Q: How ___________________________
A: The cholera threat was defeated thanks to the work of John Snow.
caused cholera according to Snow
did Snow have the handle of the pump removed
was the cholera threat defeated
2. What qualities do you need to be a scientist
determination
devotion
hard work
strict attitude
selflessness
creativity
passion
Retell the story
In the early 19th century ________ an outbreak of cholera hit Europe, million of people died from the disease. John Snow ,who subscribed _____ the theory that cholera ____________ (cause) by an infection from germs in food or water , ________(desire) to destroy cholera. _________(use) maps and statistics, John Snow was able to announce that the pump water ______ (carry) cholera germs.
Through Snow's tireless __________ (effort), the disease was stopped in its tracks. Now we have known how ___________(prevent) cholera. Transforming _____ way scientists study diseases, John Snow ________________(consider) the father of modern epidemiology .
when
to
was caused
desired
Using
carried
efforts
to prevent
the
is considered
THANKS