Unit 1 Great Scientists Reading 课件（共32张PPT）
文档属性
| 名称 | Unit 1 Great Scientists Reading 课件（共32张PPT） |  | |
| 格式 | zip | ||
| 文件大小 | 1.6MB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 人教版（新课程标准） | ||
| 科目 | 英语 | ||
| 更新时间 | 2019-11-16 22:47:31 | ||
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文档简介
(共32张PPT)
THINK
WORK
FIND
How do the scientists usually do scientific research?
The process
Find a problem
Make a question
Think of a method
Collect results
Analyse the results
Find supporting evidence
Draw a conclusion
SOLVE
What do you know about cholera?
Cholera is the illness caused by a bacterium called Varian cholera. If it infects people’s intestines (肠), it may cause diarrhea, vomiting and leg cramps (抽筋). The most common cause of cholera is by eating food or drinking water that has been polluted by the bacteria.
Cholera can be mild or even without symptoms, but a severe case can lead to death without immediate treatment.
霍乱(cholera)，早期译作虎烈拉，是由霍乱弧菌所致的烈性肠道传染病(infectious disease) ，解放后我国已消灭本病。霍乱为我国法定的甲级烈性传染病，要求在发现确诊或疑似病例后2小时内上报
Talk about other infectious diseases you have known.
foot-and-mouth
disease
E.coli outbreak
An infectious disease is a disease caused by bacterial, viral, fungal, or protozoan infection. Though some infectious diseases don’t spread, others may be transmitted from animal to person (bird flu and cat scratch disease) or from person to person (MRSA, HIV, and other STDs).
How to prevent infectious diseases?
Wash your hands often, especially during cold and flu season.
Be aware of what you eat, and be careful how you prepare it.
Use antibiotics exactly as prescribed.
Be cautious around all wild and domestic animals that are not familiar to you.
Avoid areas of insect infestation.
Wash hands before meals.
Take exercise.
Eat healthy food.
Don’t go to crowded places.
Keep fingernails clean.
Go to bed early.
Drink a lot of water.
Open the widows.
Do you know this person?
John Snow ( 1813 ~ 1858)
a legendary figure in the history of public health, epidemiology (流行病学) and anesthesiology (麻醉学)
John Snow is considered to be one of the fathers of epidemiology, because of his work in tracing the source of a cholera outbreak in Soho, England, in 1854.
思维导图
John Snow defeats “King Cholera
John Snow was aware of the big problem—cholera.
Measures taken to prevent the problem.
John Snow’s efforts to find theories that lead to cholera.
Para. 1
Para. 2-6
Para. 7
What’s the main idea of the passage?
John Snow was a well-known doctor in London.
The cause of Cholera was polluted water.
The source of all drinking water should be examined.
How John Snow collected, analyzed data and found the cause of the disease and solved it .
Fast reading
D
Who defeats “King Cholera“?
What happened in 1854?
How many people died in 10 days?
Why is there no death at No. 20 and 21 Broad Street as well as at No. 8 and 9 Cambridge Street?
John Snow
Cholera outbreak hit London.
500
Because these families had not drunk the water from the Broad Street pump.
Answer the questions.
Use the seven stages in setting out a new scientific idea to describe each paragraph.
Careful reading
draw a conclusion
find a problem
make up a question
think of a method
collect results
analyse the results
find supporting evidence
Para 1
Para 2
Para 3
Para 4
Para 5
Para 6
Para 7
Find a problem
What causes cholera?
Make a question
Which theory is correct?
Think of a method
Collect data on those who were ill or
died and where they got their water.
Para. 1
Para. 2
Para. 3
Para. 5
Analyse the results
Analyse the water to see if that is the
cause of the illness.
Para. 6
Find supporting evidence
Find other evidence to support the
analysis.
Para. 7
Draw a conclusion
The water was to blame. The source of
all drinking water should be examined to
make sure it is safe.
Para. 4
Collect results
Plot information on a map to find out
where people died or did not die.
Answer the questions.
Who defeats “King Cholera“?
What happened in 1854?
How many people died in 10 days in London in 1854?
Why was there no death at No. 20 and 21 Broad Street as well as at No. 8 and 9 Cambridge Street?
1. Who defeats “King Cholera”?
2. What happened in 1854?
3. How many people died in 10 days in London in 1854?
John Snow.
Cholera outbreak hit London.
500.
4. Why was there no death at No. 20 and 21 Broad Street as well as at No. 8 and 9 Cambridge Street at that time?
These families had not drunk the water from the Broad Street pump.
Number these events in the order they happened.
___ John Snow began to test two theories.
___ An outbreak of cholera hit London in 1854.
___ John Snow marked the deaths on a map.
___ He announced that the water carried the disease.
___ John Snow investigated two streets where the
outbreak was very severe.
___ King Cholera was defeated.
___ He found that most of the deaths were near a
water pump.
___ He had the handle removed from the water pump.
1
2
3
4
5
6
7
8
Read the text again to get more details.
1. What was the most deadly disease in the 19th century? Why?
2. When could the cholera be controlled?
The cholera. Because neither its cause nor its cure was understood.
John Snow knew it would never be controlled until its cause was found.
3. What is the problem?
The cholera was the most deadly disease of its day. Neither its cause, nor its cure was understood.
The water was from the river which had been polluted by the dirty water from London.
4. What happened to the pump water?
A woman and her daughter who lived far away but drank the water also died.
5. What extra evidence did John Snow
find?
doctor
19th
cause
defeat
broke
marked
pump
source
examined
dealing
Read the passage again and fill in the blanks.
John Snow was a well-known ______ in London in the ___ century. He wanted to find the ______ of cholera in order to ______ it. In 1854 when a cholera ______ out, he began to gather information. He _______ on a map where all the dead people had lived and he found that many people who had drunk the dirty water from the ______ died. So he decided that the polluted water carried cholera. He suggested that the _____ of all water supply be _________ and new methods of ________ with polluted water be found. Finally, “King Cholera” was defeated.
1. After reading the whole text, what do you think about John Snow?
2. Can you name some other scientists nowadays like John Snow?
3. What do you think they have in common?
THINK
WORK
FIND
How do the scientists usually do scientific research?
The process
Find a problem
Make a question
Think of a method
Collect results
Analyse the results
Find supporting evidence
Draw a conclusion
SOLVE
What do you know about cholera?
Cholera is the illness caused by a bacterium called Varian cholera. If it infects people’s intestines (肠), it may cause diarrhea, vomiting and leg cramps (抽筋). The most common cause of cholera is by eating food or drinking water that has been polluted by the bacteria.
Cholera can be mild or even without symptoms, but a severe case can lead to death without immediate treatment.
霍乱(cholera)，早期译作虎烈拉，是由霍乱弧菌所致的烈性肠道传染病(infectious disease) ，解放后我国已消灭本病。霍乱为我国法定的甲级烈性传染病，要求在发现确诊或疑似病例后2小时内上报
Talk about other infectious diseases you have known.
foot-and-mouth
disease
E.coli outbreak
An infectious disease is a disease caused by bacterial, viral, fungal, or protozoan infection. Though some infectious diseases don’t spread, others may be transmitted from animal to person (bird flu and cat scratch disease) or from person to person (MRSA, HIV, and other STDs).
How to prevent infectious diseases?
Wash your hands often, especially during cold and flu season.
Be aware of what you eat, and be careful how you prepare it.
Use antibiotics exactly as prescribed.
Be cautious around all wild and domestic animals that are not familiar to you.
Avoid areas of insect infestation.
Wash hands before meals.
Take exercise.
Eat healthy food.
Don’t go to crowded places.
Keep fingernails clean.
Go to bed early.
Drink a lot of water.
Open the widows.
Do you know this person?
John Snow ( 1813 ~ 1858)
a legendary figure in the history of public health, epidemiology (流行病学) and anesthesiology (麻醉学)
John Snow is considered to be one of the fathers of epidemiology, because of his work in tracing the source of a cholera outbreak in Soho, England, in 1854.
思维导图
John Snow defeats “King Cholera
John Snow was aware of the big problem—cholera.
Measures taken to prevent the problem.
John Snow’s efforts to find theories that lead to cholera.
Para. 1
Para. 2-6
Para. 7
What’s the main idea of the passage?
John Snow was a well-known doctor in London.
The cause of Cholera was polluted water.
The source of all drinking water should be examined.
How John Snow collected, analyzed data and found the cause of the disease and solved it .
Fast reading
D
Who defeats “King Cholera“?
What happened in 1854?
How many people died in 10 days?
Why is there no death at No. 20 and 21 Broad Street as well as at No. 8 and 9 Cambridge Street?
John Snow
Cholera outbreak hit London.
500
Because these families had not drunk the water from the Broad Street pump.
Answer the questions.
Use the seven stages in setting out a new scientific idea to describe each paragraph.
Careful reading
draw a conclusion
find a problem
make up a question
think of a method
collect results
analyse the results
find supporting evidence
Para 1
Para 2
Para 3
Para 4
Para 5
Para 6
Para 7
Find a problem
What causes cholera?
Make a question
Which theory is correct?
Think of a method
Collect data on those who were ill or
died and where they got their water.
Para. 1
Para. 2
Para. 3
Para. 5
Analyse the results
Analyse the water to see if that is the
cause of the illness.
Para. 6
Find supporting evidence
Find other evidence to support the
analysis.
Para. 7
Draw a conclusion
The water was to blame. The source of
all drinking water should be examined to
make sure it is safe.
Para. 4
Collect results
Plot information on a map to find out
where people died or did not die.
Answer the questions.
Who defeats “King Cholera“?
What happened in 1854?
How many people died in 10 days in London in 1854?
Why was there no death at No. 20 and 21 Broad Street as well as at No. 8 and 9 Cambridge Street?
1. Who defeats “King Cholera”?
2. What happened in 1854?
3. How many people died in 10 days in London in 1854?
John Snow.
Cholera outbreak hit London.
500.
4. Why was there no death at No. 20 and 21 Broad Street as well as at No. 8 and 9 Cambridge Street at that time?
These families had not drunk the water from the Broad Street pump.
Number these events in the order they happened.
___ John Snow began to test two theories.
___ An outbreak of cholera hit London in 1854.
___ John Snow marked the deaths on a map.
___ He announced that the water carried the disease.
___ John Snow investigated two streets where the
outbreak was very severe.
___ King Cholera was defeated.
___ He found that most of the deaths were near a
water pump.
___ He had the handle removed from the water pump.
1
2
3
4
5
6
7
8
Read the text again to get more details.
1. What was the most deadly disease in the 19th century? Why?
2. When could the cholera be controlled?
The cholera. Because neither its cause nor its cure was understood.
John Snow knew it would never be controlled until its cause was found.
3. What is the problem?
The cholera was the most deadly disease of its day. Neither its cause, nor its cure was understood.
The water was from the river which had been polluted by the dirty water from London.
4. What happened to the pump water?
A woman and her daughter who lived far away but drank the water also died.
5. What extra evidence did John Snow
find?
doctor
19th
cause
defeat
broke
marked
pump
source
examined
dealing
Read the passage again and fill in the blanks.
John Snow was a well-known ______ in London in the ___ century. He wanted to find the ______ of cholera in order to ______ it. In 1854 when a cholera ______ out, he began to gather information. He _______ on a map where all the dead people had lived and he found that many people who had drunk the dirty water from the ______ died. So he decided that the polluted water carried cholera. He suggested that the _____ of all water supply be _________ and new methods of ________ with polluted water be found. Finally, “King Cholera” was defeated.
1. After reading the whole text, what do you think about John Snow?
2. Can you name some other scientists nowadays like John Snow?
3. What do you think they have in common?