Draw a conclusion
1. Skimming
What’s the main idea of the passage?
A. John Snow was a well-known doctor in London.
B. The cause of Cholera was polluted water. C. The source of all drinking water should be examined.
Cholera:
Do you know this person?
A well-known
doctor in the 19th century in London. A legendary figure in epidemiology[epɪ,di:mi:'ɔ lədʒi:](流行病学) and anesthesiology ](麻醉学) [ænis,θizi'ɔlədʒi
What order do you put them in? Why?
Find a problem
Make up a question Think of a method
Collect results
Analyse the results Find supporting evidence
Draw a conclusion
John Snow ( 1813~ 1858)
reading
John Snow Defeats “King Cholera”
Find the phrases in the passage.
1 身体特征 physical characteristics 2 提出 put forward
3 传染病 infectious diseases
analyze the results: What happened to the pump water? The water was from the river which had been polluted by the dirty water from London.
find supporting evidence : What extra evidence did he find?
Details
Find a problem
What is the problem?
The cholera was the most deadly disease of its day. Neither its cause, nor its cure was understood.
What caused cholera?
Thank you!
D. How John Snow collected, analyzed data and found the cause of the disease and solved it .
Number these events in the order that they happened. __ 2 John Snow began to test two theories.
__ 1 An outbreak of cholera hit London in 1854.
__ 4 John Snow marked the deaths on a map. __ 7 He announced that the water carried the disease.
3 John Snow investigated two streets where the __ outbreak was very severe.
What do you know about infectious diseases?
a kind of infectious diseases
•
It begins in the stomach and a severe case can lead to death without immediate treatment. • And the victims died very quickly from a loss of liquid after severe vomiting(呕 吐) and diarrhoea(腹泻).
collect results What
method did he use?
Public house
Many deaths happened here. A map of Broad
Street
No death happened here.
The water from the pump was to blame.
Match them
Para 1 Para 2
Find a problem Make up a question
Think of a method
Para 3
Para 4 Para 5 Para 6 Para 7
Collect results Analyse the results
Find supporting evidence
4 科学研究 scientific research
5 得出结论 draw a conclusion
6 分析结果 analyze results 7 感染霍乱的平常人
ordinary people exposed to cholera
8 致命的疾病 the deadly disease
9 惊恐的人群 terrified people
10 面对挑战 face the challenge
11 对……产生兴趣 become interested in 12 被传染的人 the affected person
13 霍乱的起因 the cause of cholera
14 进一步的调查 make further investigations
15 拆掉水泵的把手remove the handle from the pump
16 与…有关联 be linked to 17 有力的证据 supporting evidence 18 死于 die of 19 毫无疑问地 with certainty
20 阻止做… prevent…from…
20 污染的水 polluted water
A woman and her daughter who lived far away but drank the water also died.
draw a conclusion with certainty
The polluted water carried the disease.
Drink boiled water Wash hands often What should we pay attention to in our daily life in order not to get Keep infected with cholera? away from flies choose fresh sea food
8 King Cholera was defeated. __
__ 5 He found that most of the dபைடு நூலகம்aths were near a water pump. __ 6 He had the handle removed from the water pump.
Read the passage paragraph by paragraph carefully,then answer these questions
Reading
Learning aims
1.To learn the passage about cholera.
2.To find out the main idea of the passage. 3.To improve the reading ability.
Pre-reading
Draw a conclusion Think of a method Collect results Make up a question Find a problem Analyse the results Find supporting evidence
make up a question: Which theory to believe in? Cholera multiplied in the air without reason. A cloud of dangerous gas would float around until it found its victims. People absorbed it with their meals.
1. Surf the internet to find out: What should we pay attention to in our daily life to prevent ourselves from getting infected with all these infectious diseases? 2. Write down the important words and phrases in your exercise books. 3. Underline the difficult sentences that you cannot understand.
Keep the kitchen clean Cook raw food thoroughly
Dispose rubbish properly. Heal the food left overnight
Summary
John Snow was a well-known doctor ___ in London in the cause of 19th century. He wanted to find the _____ defeatit. In 1854 when a cholera in order to _____ cholera broke ___ out, he began to gather _____ information. He marked _____on a map where all the dead people had lived and he found that many people who had drunk the dirty water from the pump _____ died. So he decided that the polluted water carried _____ cholera. He suggested that the source of all water supplies examined be ______ and new methods of dealing with polluted water be found. Finally, “King Cholera” was defeated.