人教版（2019）选择性必修第二册 Unit1 Science and Scientists Reading and Thinking 精品课件(共20张PPT)
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| 名称 | 人教版（2019）选择性必修第二册 Unit1 Science and Scientists Reading and Thinking 精品课件(共20张PPT) |  | |
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| 科目 | 英语 | ||
| 更新时间 | 2023-03-12 08:22:17 | ||
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2019人教版选择性必修二Unit1Science and Scientists Reading and Thinking 课件
JOHN SNOW DEFEATS “KING CHOLERA”
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
Yes, I have. I have conducted chemistry experiments in the laboratory at my school. There are lots of beakers, Petri dishes, and other tools and equipment there. We are set in teams and work together to complete experiments at various workstations.
1.Where do you think this photo was taken What are the students doing in the photo
I think it was taken in a chemistry laboratory at school. They look like they are conducting an experiment.
2.Have you ever been to a place like this What was it like
3.Would you like to work in such a filed
in the future Why or why not
Yes. I think it would be very exciting! I am already very interested in chemistry.
4. What scientific equipment can you see in the picture
Safety goggles 防护眼镜，glass rod 玻璃棒，beaker 烧杯，tripod 三脚架，Bunsen burner 本生灯，stand 托架，flask 烧瓶，test tube 试管, etc.
1. How does cholera spread
Cholera can spread through unclean water or flies.
2. What did the doctor use to treat cholera patients
They made a special drink with boiled water, salt and sugar to
treat cholera .
3. What did people do to keep the village clean
They dug latrines at least 30 meters away from the river.
JOHN SNOW DEFEATS “KING CHOLERA”
1. Who was John Snow
A young doctor decided to find out how to
prevent and treat the disease. Finally, the doctor
won the battle.
2. What did John Snow do about King Cholera
He never lost his desire to destroy cholera
once and for all.
Who？
How？
What？
3. What is King Cholera
It is a water-borne infectious disease.
It used to be one of the most feared diseases in the world.
It causes severe diarrhea, dehydration, and even death.
Millions of people died from it.
Discuss the following stages of scientific research in groups. What order would you put them in
______ analyse the results
______ ask a question
______ draw a conclusion
______ collect data
______ find a problem
______ find supporting evidence
______ think of a method
5
2
7
4
1
6
3
Now please read paragraph 1 and fill the blanks.
Cholera used to be one of the most _______________ in the world. It causes ____________, __________, and even ________. ______________________ when an ___________of cholera ______ Europe, millions of people died from the disease.
John Snow became ___________ because no one knew _____________________________.He rose to become a famous doctor , and even __________ Queen Victoria when she gave ______. However, he never lost his desire to ______________ cholera once and for all.
feared diseases
diarrhoea
dehydration
death
In the early 19th century
outbreak
hit
frustrated
how to prevent or treat cholera
attended to
birth
destroy
Please read paragraph 2 and analyze the two contradictory theories how cholera spread.
Theory 1
Cholera was caused by ________.
Theory 2
Cholera was caused by an _______ from _______ in ______ or_________.
VS
bad air
infection
germs
food
water
John Snow ______________________ theory, but he still needed ________.
subscribed to the second
proof
His discovery: in two particular streets the cholera outbreak was so ________ that ___________________ died in ten days. He _______________ to find out why.
severe
more than 500 people
was determined
Find a problem
Cholera Map” made by John Snow
Which house numbers had more than 4 deaths in Broad Street
Which house numbers had no death in Broad Street
Multiple deaths happened here.
No death happened here.
He suspected that the water from the pump was to blame.
Now please read Paragraph 3
1. What kind of map is it
Where is the pump
Pub
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
Read from Para. 2-3 again and complete the chart below.
4. Match the following headers with the letters from the chart above 1.conclusion 2.evidence 3.process 4.solution 5.theories
map
from the pump
Read paragraph 4-5 and answer the questions.
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.
2. Was cholera destroyed completely
No.
3. How can we prevent cholera
By drinking pure or boiled water, and eating clean food.
4. What contributions did John Snow make to science
He helped people know how to prevent cholera. He transformed the way
scientists study diseases by using maps and statistics.
5.What kind of person John Snow is as a great scientist
John Snow was rigorous（严谨的）, determined, devoted, creative and innovative.
5. Write out the questions according to the answers
(Textbook P.3)
1. Q: What _________________________________
A: Snow thought that cholera was caused by germs in food or water.
2. Q: Why __________________________________________
A: Snow had the handle of the pump removed so that it could not be used.
3. 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
6. In groups, discuss the following questions. (Textbook P.3)
1. What was the most important tool Snow used to defeat cholera What common medical tools, e.g. a microscope, didn't he use Why
He used maps and statistics to analyze where the deaths occurred. He didn't use a microscope, for example. He didn't test the water, nor did he draw blood or examine patients.
The reason he did not use medical equipment such as a microscope was because they did not exist during his time. Furthermore, understanding of germs and bacteria was still developing, and so he had to innovate methods himself based on the theory he believed.
2. How has John Snow’s work affected our daily lives
Snow's work has provided readily available clean water to drink, for example, as well as an emphasis on hygiene such as the need to wash hands after they become dirty. He also showed how to prevent cholera epidemics, and transformed the way scientists study diseases, which has allowed for more protection from once common diseases such as cholera.
Now please fill in the blanks and retell the text.
Cholera _________ be one of the most feared diseases in the world. In the early 19th century, an outbreak of cholera hit Europe, _______ (cause) millions of deaths. Seeing this, John Snow became _________(frustrate) because no one knew how to prevent or treat cholera. At that time, doctors had two ________(theory) to explain how cholera spread. One was that bad air caused the disease and another was that cholera was caused by an _______ (infect)from germs in food or water. John discovered that in two particular street _____ cholera outbreak was ____ severe that over 500 people died in ten days. Through his serious investigation, he found it was the pump water in Broad Street _______ resulted in the disease. __________, he had the handle of the pump removed . It turned out that the water from the pump _______________ (infect) by waste. Through Snow's tireless efforts, water companies began to sell clean water, and the threat of cholera around the world saw a substantial decrease. Snow transformed the way scientists study diseases. For this reason, he __________(consider) the father of modern epidemiology.
causing
used to
frustrated
theories
infection
where
so
that
Therefore
had been infected
is considered
Thank you!
2019人教版选择性必修二Unit1Science and Scientists Reading and Thinking 课件
JOHN SNOW DEFEATS “KING CHOLERA”
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
Yes, I have. I have conducted chemistry experiments in the laboratory at my school. There are lots of beakers, Petri dishes, and other tools and equipment there. We are set in teams and work together to complete experiments at various workstations.
1.Where do you think this photo was taken What are the students doing in the photo
I think it was taken in a chemistry laboratory at school. They look like they are conducting an experiment.
2.Have you ever been to a place like this What was it like
3.Would you like to work in such a filed
in the future Why or why not
Yes. I think it would be very exciting! I am already very interested in chemistry.
4. What scientific equipment can you see in the picture
Safety goggles 防护眼镜，glass rod 玻璃棒，beaker 烧杯，tripod 三脚架，Bunsen burner 本生灯，stand 托架，flask 烧瓶，test tube 试管, etc.
1. How does cholera spread
Cholera can spread through unclean water or flies.
2. What did the doctor use to treat cholera patients
They made a special drink with boiled water, salt and sugar to
treat cholera .
3. What did people do to keep the village clean
They dug latrines at least 30 meters away from the river.
JOHN SNOW DEFEATS “KING CHOLERA”
1. Who was John Snow
A young doctor decided to find out how to
prevent and treat the disease. Finally, the doctor
won the battle.
2. What did John Snow do about King Cholera
He never lost his desire to destroy cholera
once and for all.
Who？
How？
What？
3. What is King Cholera
It is a water-borne infectious disease.
It used to be one of the most feared diseases in the world.
It causes severe diarrhea, dehydration, and even death.
Millions of people died from it.
Discuss the following stages of scientific research in groups. What order would you put them in
______ analyse the results
______ ask a question
______ draw a conclusion
______ collect data
______ find a problem
______ find supporting evidence
______ think of a method
5
2
7
4
1
6
3
Now please read paragraph 1 and fill the blanks.
Cholera used to be one of the most _______________ in the world. It causes ____________, __________, and even ________. ______________________ when an ___________of cholera ______ Europe, millions of people died from the disease.
John Snow became ___________ because no one knew _____________________________.He rose to become a famous doctor , and even __________ Queen Victoria when she gave ______. However, he never lost his desire to ______________ cholera once and for all.
feared diseases
diarrhoea
dehydration
death
In the early 19th century
outbreak
hit
frustrated
how to prevent or treat cholera
attended to
birth
destroy
Please read paragraph 2 and analyze the two contradictory theories how cholera spread.
Theory 1
Cholera was caused by ________.
Theory 2
Cholera was caused by an _______ from _______ in ______ or_________.
VS
bad air
infection
germs
food
water
John Snow ______________________ theory, but he still needed ________.
subscribed to the second
proof
His discovery: in two particular streets the cholera outbreak was so ________ that ___________________ died in ten days. He _______________ to find out why.
severe
more than 500 people
was determined
Find a problem
Cholera Map” made by John Snow
Which house numbers had more than 4 deaths in Broad Street
Which house numbers had no death in Broad Street
Multiple deaths happened here.
No death happened here.
He suspected that the water from the pump was to blame.
Now please read Paragraph 3
1. What kind of map is it
Where is the pump
Pub
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
Read from Para. 2-3 again and complete the chart below.
4. Match the following headers with the letters from the chart above 1.conclusion 2.evidence 3.process 4.solution 5.theories
map
from the pump
Read paragraph 4-5 and answer the questions.
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.
2. Was cholera destroyed completely
No.
3. How can we prevent cholera
By drinking pure or boiled water, and eating clean food.
4. What contributions did John Snow make to science
He helped people know how to prevent cholera. He transformed the way
scientists study diseases by using maps and statistics.
5.What kind of person John Snow is as a great scientist
John Snow was rigorous（严谨的）, determined, devoted, creative and innovative.
5. Write out the questions according to the answers
(Textbook P.3)
1. Q: What _________________________________
A: Snow thought that cholera was caused by germs in food or water.
2. Q: Why __________________________________________
A: Snow had the handle of the pump removed so that it could not be used.
3. 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
6. In groups, discuss the following questions. (Textbook P.3)
1. What was the most important tool Snow used to defeat cholera What common medical tools, e.g. a microscope, didn't he use Why
He used maps and statistics to analyze where the deaths occurred. He didn't use a microscope, for example. He didn't test the water, nor did he draw blood or examine patients.
The reason he did not use medical equipment such as a microscope was because they did not exist during his time. Furthermore, understanding of germs and bacteria was still developing, and so he had to innovate methods himself based on the theory he believed.
2. How has John Snow’s work affected our daily lives
Snow's work has provided readily available clean water to drink, for example, as well as an emphasis on hygiene such as the need to wash hands after they become dirty. He also showed how to prevent cholera epidemics, and transformed the way scientists study diseases, which has allowed for more protection from once common diseases such as cholera.
Now please fill in the blanks and retell the text.
Cholera _________ be one of the most feared diseases in the world. In the early 19th century, an outbreak of cholera hit Europe, _______ (cause) millions of deaths. Seeing this, John Snow became _________(frustrate) because no one knew how to prevent or treat cholera. At that time, doctors had two ________(theory) to explain how cholera spread. One was that bad air caused the disease and another was that cholera was caused by an _______ (infect)from germs in food or water. John discovered that in two particular street _____ cholera outbreak was ____ severe that over 500 people died in ten days. Through his serious investigation, he found it was the pump water in Broad Street _______ resulted in the disease. __________, he had the handle of the pump removed . It turned out that the water from the pump _______________ (infect) by waste. Through Snow's tireless efforts, water companies began to sell clean water, and the threat of cholera around the world saw a substantial decrease. Snow transformed the way scientists study diseases. For this reason, he __________(consider) the father of modern epidemiology.
causing
used to
frustrated
theories
infection
where
so
that
Therefore
had been infected
is considered
Thank you!