人教版（2019）选择性必修 第二册 Unit 1 Science and Scientists Reading and Thinking课件(共44张PPT)
文档属性
| 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44张PPT) |  | |
| 格式 | pptx | ||
| 文件大小 | 4.8MB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 人教版（2019） | ||
| 科目 | 英语 | ||
| 更新时间 | 2025-03-05 09:49:03 | ||
图片预览
文档简介
(共44张PPT)
Unit 1 Science and Scientists
Reading and Thinking
Learning objectives
In this class, you will
get information about how John Snow defeated cholera;
summarize the stages of scientific research;
talk about the significance and contribution of John’s work.
Activity 1: Read the title and predict.
JOHN SNOW DEFEATS “KING CHOLERA”
Who was John Snow
What is King Cholera
What does “defeat” mean
What did John Snow do about King Cholera
First reading
Activity 2: Read the passage and check your predictions.
1. Who was John Snow
He was a British doctor.
2. What is King Cholera
It used to be one of the most feared diseases in the world and millions of people died from it in the early 19th century.
a. serious
n. 霍乱
First reading
Activity 2: Read the passage and check your predictions.
3. What does “defeat” mean
It means to win against something.
4. What did John Snow do about King Cholera
He conducted research and found out how cholera spread.
Second reading
Activity 3: Read the passage again and find the main information in each paragraph on how John Snow defeated King cholera.
Activity 3: Read the passage again and find the main information of each paragraph.
Paragraph 1: Cholera hit Europe in the early 19th century and John Snow showed how it could be overcome.
Para. 1:
Cholera used to be one of the most feared diseases in the world, until a British doctor, John Snow, showed how it could be overcome. … In the early 19th century, when an outbreak of cholera hit Europe…
Activity 3: Read the passage again and find the main information of each paragraph.
Paragraph 2: John Snow found a problem.
Para. 2:
In general, doctors in those days had two contradictory theories to explain how cholera spread. … 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.
a. 对立的
Activity 3: Read the passage again and find the main information of each paragraph.
Paragraph 3: John Snow conducted research to stop the disease.
Para. 3:
Snow began by marking on a map the exact places where all those who died had lived. …Accordingly, he had the handle of the pump removed so that it could not be used. Through this intervention, the disease was stopped in its tracks.
n. 把手
n. 泵
Activity 3: Read the passage again and find the main information of each paragraph.
Paragraph 4: John found the truth about cholera.
Para. 4:
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. …
v. to make a disease spread to sb./sth.
n. connection
Activity 3: Read the passage again and find the main information of each paragraph.
Paragraph 5: John contributed a lot to how to prevent cholera and how to study diseases.
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 modern epidemiology.
n. 流行病学
v. change
Summary
The main information about how John defeated cholera:
Paragraph 1: Cholera hit Europe in the early 19th century and John Snow showed how it could be overcome.
Paragraph 2: John Snow found a problem.
Paragraph 3: John Snow conducted research to stop the disease.
Paragraph 4: John found the truth about cholera.
Paragraph 5: John contributed a lot to how to prevent cholera and how to study diseases.
Activity 4: Try to put the following stages of scientific research in order.
______ analyse the results ______ ask a question
______ draw a conclusion ______ collect data
______ find a problem ______ find supporting evidence
______ think of a method
1st stage: Find a problem
Para. 2:
In general, doctors in those days had two contradictory theories to explain how cholera spread. One theory was that bad air caused the disease. Another was that cholera was caused by an infection from germs in food or water. Snow subscribed to the second theory. …
Read paragraphs 2 and 3 and circle the key words to put the stages in order.
2nd stage: Ask a question
Para. 2:
In general, doctors in those days had two contradictory theories to explain how cholera spread. … 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.
Read paragraphs 2 and 3 and circle the key words to put the stages in order.
3rd stage: Think of a method
Para. 3:
Snow began by marking on a map the exact places where all those who died had lived. There were multiple deaths near the water pump in Broad Street (especially house numbers 16, 37, 38, and 40). …
Read paragraphs 2 and 3 and circle the key words to put the stages in order.
4th stage: Collect data
Para. 3:
Snow began by marking on a map … There were multiple deaths near the water pump in Broad Street (especially house numbers 16, 37, 38, and 40). However, some households (such as 20 and 21 Broad Street, and 8 and 9 Cambridge Street) had had no deaths. …
Read paragraphs 2 and 3 and circle the key words to put the stages in order.
n. all the people living in a house
5th stage: Analyse the results
Para. 3:
Snow began by marking on a map … There were multiple deaths near the water pump in Broad Street (especially house numbers 16, 37, 38, and 40). However, some households (such as 20 and 21 Broad Street, and 8 and 9 Cambridge Street) had had no deaths. …
Read paragraphs 2 and 3 and circle the key words to put the stages in order.
a. many
6th stage: Find supporting evidence
Para. 3:
Snow began by marking on a map … What’s more, in another part of London, a woman and her daughter had died of cholera after moving away from Broad Street. It seemed that the woman liked the water from the pump so much that she had it delivered to her house every day. …
Read paragraphs 2 and 3 and circle the key words to put the stages in order.
7th stage: Draw a conclusion
Para. 3:
Snow began by marking on a map … As a result of this evidence, John Snow was able to announce that the pump water carried cholera germs. Accordingly, he had the handle of the pump removed so that it could not be used. Through this intervention, the disease was stopped in its tracks.
Read paragraphs 2 and 3 and circle the key words to put the stages in order.
n. 病菌
Summary
The stages of scientific research
The 1st stage: find a problem
The 2nd stage: ask a question
The 3rd stage: think of a method
The 4th stage: collect data
The 5th stage: analyse the results
The 6th stage: find supporting evidence
The 7th stage: draw a conclusion
Third reading
Activity 5: Read the passage and get more information on how Snow defeated cholera.
Read paragraph 1 and fill in the blanks to get the specific information about cholera.
Read paragraph 1 and fill in the blanks to get the specific information about cholera.
the most feared diseases
severe diarrhoea,
dehydration, and even death
In the early 19th century
n. 脱水
n. 腹泻
Read paragraph 1 and fill in the blanks to get the specific information about cholera.
Europe
Millions of people died
from the disease
Read paragraphs 2 and 3 and complete the chart to get specific information about the cholera research (Page 3, Activity 3).
Steps in the research
A
B
It was believed that cholera was caused by bad ______ or germs in ____________.
Snow _________________ the places where the people who ______ had lived.
air
food or water
marked on a map
died
(1) Fill in the blanks and finish the steps in the research.
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 ___________________________.
The pump water carried ____________.
water pump
hadn’t
drinking water from the pump
cholera germs
The ______ of the pump was removed.
handle
D
E
(1) Fill in the blanks and finish the steps in the research.
(2) Match the headers with the letters from the chart to summarise and review the research steps (Page 3, Activity 4).
Write A-E in the blanks.
1 conclusion ______
2 evidence ______
3 process ______
4 solution ______
5 theories ______
Steps in the research
A
B
(2) Summarise and review the research steps.
It was believed that cholera was caused by bad ______ or germs in ____________.
Snow _________________ the places where the people who ______ had lived.
air
food or water
marked on a map
died
theories
process
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 ___________________________.
water pump
hadn’t
drinking water from the pump
(2) Summarise and review the research steps.
evidence
The pump water carried ____________.
cholera germs
The ______ of the pump was removed.
handle
D
E
(2) Summarise and review the research steps.
conclusion
solution
(2) Summarise and review the research steps.
theories
process
evidence
conclusion
solution
research method
Read the map and get to know the research method further.
What kind of map is it
What does “—” mean
What does “PH” mean
Where is the pump
Read paragraphs 4 and 5 and answer questions.
1. What caused the outbreak of cholera in London in 1854
2. Was cholera destroyed completely
3. How can we prevent cholera
Read paragraphs 4 and 5 and answer 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.
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 paragraphs 4 and 5 and answer 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 paragraphs 4 and 5 and answer questions.
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. clean
Activity 6: Answer questions and talk about the contribution of John’s work (Page 3, Activity 6).
What was the most important tool Snow used to defeat cholera What common medical tools, e.g., a microscope, didn’t he use Why
How has John Snow’s work affected our daily lives
n. 显微镜
What was the most important tool Snow used to defeat cholera What common medical tools, e.g., a microscope, didn’t he use Why
Para. 5:
… Moreover, in his use of maps and statistics, Snow transformed the way scientists study diseases. For this reason …
Activity 6: Answer questions and talk about the contribution of John’s work.
n. 统计数字
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 analyse where the deaths occurred.
He didn’t use a microscope. He didn’t test the water, nor did he draw blood or examine patients.
The reason was that medical science was not so advanced at that time.
Activity 6: Answer questions and talk about the contribution of John’s work.
How has John Snow’s work affected our daily lives
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. … Moreover, in his use of maps and statistics, Snow transformed the way scientists study diseases. For this reason …
Activity 6: Answer questions and talk about the contribution of John’s work.
How has John Snow’s work affected our daily lives
Snow’s work has provided readily available clean water to drink, 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.
Activity 6: Answer questions and talk about the contribution of John’s work.
Homework
Why was it John Snow, not other doctors, who defeated King Cholera
Write about your opinion by using the information from the passage.
Unit 1 Science and Scientists
Reading and Thinking
Learning objectives
In this class, you will
get information about how John Snow defeated cholera;
summarize the stages of scientific research;
talk about the significance and contribution of John’s work.
Activity 1: Read the title and predict.
JOHN SNOW DEFEATS “KING CHOLERA”
Who was John Snow
What is King Cholera
What does “defeat” mean
What did John Snow do about King Cholera
First reading
Activity 2: Read the passage and check your predictions.
1. Who was John Snow
He was a British doctor.
2. What is King Cholera
It used to be one of the most feared diseases in the world and millions of people died from it in the early 19th century.
a. serious
n. 霍乱
First reading
Activity 2: Read the passage and check your predictions.
3. What does “defeat” mean
It means to win against something.
4. What did John Snow do about King Cholera
He conducted research and found out how cholera spread.
Second reading
Activity 3: Read the passage again and find the main information in each paragraph on how John Snow defeated King cholera.
Activity 3: Read the passage again and find the main information of each paragraph.
Paragraph 1: Cholera hit Europe in the early 19th century and John Snow showed how it could be overcome.
Para. 1:
Cholera used to be one of the most feared diseases in the world, until a British doctor, John Snow, showed how it could be overcome. … In the early 19th century, when an outbreak of cholera hit Europe…
Activity 3: Read the passage again and find the main information of each paragraph.
Paragraph 2: John Snow found a problem.
Para. 2:
In general, doctors in those days had two contradictory theories to explain how cholera spread. … 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.
a. 对立的
Activity 3: Read the passage again and find the main information of each paragraph.
Paragraph 3: John Snow conducted research to stop the disease.
Para. 3:
Snow began by marking on a map the exact places where all those who died had lived. …Accordingly, he had the handle of the pump removed so that it could not be used. Through this intervention, the disease was stopped in its tracks.
n. 把手
n. 泵
Activity 3: Read the passage again and find the main information of each paragraph.
Paragraph 4: John found the truth about cholera.
Para. 4:
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. …
v. to make a disease spread to sb./sth.
n. connection
Activity 3: Read the passage again and find the main information of each paragraph.
Paragraph 5: John contributed a lot to how to prevent cholera and how to study diseases.
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 modern epidemiology.
n. 流行病学
v. change
Summary
The main information about how John defeated cholera:
Paragraph 1: Cholera hit Europe in the early 19th century and John Snow showed how it could be overcome.
Paragraph 2: John Snow found a problem.
Paragraph 3: John Snow conducted research to stop the disease.
Paragraph 4: John found the truth about cholera.
Paragraph 5: John contributed a lot to how to prevent cholera and how to study diseases.
Activity 4: Try to put the following stages of scientific research in order.
______ analyse the results ______ ask a question
______ draw a conclusion ______ collect data
______ find a problem ______ find supporting evidence
______ think of a method
1st stage: Find a problem
Para. 2:
In general, doctors in those days had two contradictory theories to explain how cholera spread. One theory was that bad air caused the disease. Another was that cholera was caused by an infection from germs in food or water. Snow subscribed to the second theory. …
Read paragraphs 2 and 3 and circle the key words to put the stages in order.
2nd stage: Ask a question
Para. 2:
In general, doctors in those days had two contradictory theories to explain how cholera spread. … 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.
Read paragraphs 2 and 3 and circle the key words to put the stages in order.
3rd stage: Think of a method
Para. 3:
Snow began by marking on a map the exact places where all those who died had lived. There were multiple deaths near the water pump in Broad Street (especially house numbers 16, 37, 38, and 40). …
Read paragraphs 2 and 3 and circle the key words to put the stages in order.
4th stage: Collect data
Para. 3:
Snow began by marking on a map … There were multiple deaths near the water pump in Broad Street (especially house numbers 16, 37, 38, and 40). However, some households (such as 20 and 21 Broad Street, and 8 and 9 Cambridge Street) had had no deaths. …
Read paragraphs 2 and 3 and circle the key words to put the stages in order.
n. all the people living in a house
5th stage: Analyse the results
Para. 3:
Snow began by marking on a map … There were multiple deaths near the water pump in Broad Street (especially house numbers 16, 37, 38, and 40). However, some households (such as 20 and 21 Broad Street, and 8 and 9 Cambridge Street) had had no deaths. …
Read paragraphs 2 and 3 and circle the key words to put the stages in order.
a. many
6th stage: Find supporting evidence
Para. 3:
Snow began by marking on a map … What’s more, in another part of London, a woman and her daughter had died of cholera after moving away from Broad Street. It seemed that the woman liked the water from the pump so much that she had it delivered to her house every day. …
Read paragraphs 2 and 3 and circle the key words to put the stages in order.
7th stage: Draw a conclusion
Para. 3:
Snow began by marking on a map … As a result of this evidence, John Snow was able to announce that the pump water carried cholera germs. Accordingly, he had the handle of the pump removed so that it could not be used. Through this intervention, the disease was stopped in its tracks.
Read paragraphs 2 and 3 and circle the key words to put the stages in order.
n. 病菌
Summary
The stages of scientific research
The 1st stage: find a problem
The 2nd stage: ask a question
The 3rd stage: think of a method
The 4th stage: collect data
The 5th stage: analyse the results
The 6th stage: find supporting evidence
The 7th stage: draw a conclusion
Third reading
Activity 5: Read the passage and get more information on how Snow defeated cholera.
Read paragraph 1 and fill in the blanks to get the specific information about cholera.
Read paragraph 1 and fill in the blanks to get the specific information about cholera.
the most feared diseases
severe diarrhoea,
dehydration, and even death
In the early 19th century
n. 脱水
n. 腹泻
Read paragraph 1 and fill in the blanks to get the specific information about cholera.
Europe
Millions of people died
from the disease
Read paragraphs 2 and 3 and complete the chart to get specific information about the cholera research (Page 3, Activity 3).
Steps in the research
A
B
It was believed that cholera was caused by bad ______ or germs in ____________.
Snow _________________ the places where the people who ______ had lived.
air
food or water
marked on a map
died
(1) Fill in the blanks and finish the steps in the research.
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 ___________________________.
The pump water carried ____________.
water pump
hadn’t
drinking water from the pump
cholera germs
The ______ of the pump was removed.
handle
D
E
(1) Fill in the blanks and finish the steps in the research.
(2) Match the headers with the letters from the chart to summarise and review the research steps (Page 3, Activity 4).
Write A-E in the blanks.
1 conclusion ______
2 evidence ______
3 process ______
4 solution ______
5 theories ______
Steps in the research
A
B
(2) Summarise and review the research steps.
It was believed that cholera was caused by bad ______ or germs in ____________.
Snow _________________ the places where the people who ______ had lived.
air
food or water
marked on a map
died
theories
process
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 ___________________________.
water pump
hadn’t
drinking water from the pump
(2) Summarise and review the research steps.
evidence
The pump water carried ____________.
cholera germs
The ______ of the pump was removed.
handle
D
E
(2) Summarise and review the research steps.
conclusion
solution
(2) Summarise and review the research steps.
theories
process
evidence
conclusion
solution
research method
Read the map and get to know the research method further.
What kind of map is it
What does “—” mean
What does “PH” mean
Where is the pump
Read paragraphs 4 and 5 and answer questions.
1. What caused the outbreak of cholera in London in 1854
2. Was cholera destroyed completely
3. How can we prevent cholera
Read paragraphs 4 and 5 and answer 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.
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 paragraphs 4 and 5 and answer 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 paragraphs 4 and 5 and answer questions.
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. clean
Activity 6: Answer questions and talk about the contribution of John’s work (Page 3, Activity 6).
What was the most important tool Snow used to defeat cholera What common medical tools, e.g., a microscope, didn’t he use Why
How has John Snow’s work affected our daily lives
n. 显微镜
What was the most important tool Snow used to defeat cholera What common medical tools, e.g., a microscope, didn’t he use Why
Para. 5:
… Moreover, in his use of maps and statistics, Snow transformed the way scientists study diseases. For this reason …
Activity 6: Answer questions and talk about the contribution of John’s work.
n. 统计数字
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 analyse where the deaths occurred.
He didn’t use a microscope. He didn’t test the water, nor did he draw blood or examine patients.
The reason was that medical science was not so advanced at that time.
Activity 6: Answer questions and talk about the contribution of John’s work.
How has John Snow’s work affected our daily lives
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. … Moreover, in his use of maps and statistics, Snow transformed the way scientists study diseases. For this reason …
Activity 6: Answer questions and talk about the contribution of John’s work.
How has John Snow’s work affected our daily lives
Snow’s work has provided readily available clean water to drink, 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.
Activity 6: Answer questions and talk about the contribution of John’s work.
Homework
Why was it John Snow, not other doctors, who defeated King Cholera
Write about your opinion by using the information from the passage.