课件34张PPT。Module 5 Unit 1 Reading
John Snow Defeats “King Cholera”There is a disease!That’s cholera!Who helped the people to defeat cholera?Read the title “John Snow Defeats King Cholera” and answer the question below. What do you think the word “King” in the title is ?
A Queen Victoria B John Snow
C Polluted water D Cholera√Read and answer:Paragraph 1:
True or false:King Cholera is the deadly disease.John Snow thought cholera would never be controlled.
What’s the topic sentence?FFJohn Snow wanted to face the challenge and solve this problem.Paragraph 2What’s the two theories? Which one is more reasonable?The first suggested that cholera multiplied in the air without reason.The second suggested that people absorbed this disease into their bodies with their meals. Paragraph 3 &4What’s his method?
What’s the result?Collect data from the next cholera attack to test theories. Try to prove which method was correct.He found the cause of cholera was the polluted water.Paragraph 5When the cause was found, what did the people do?Remove the handle from the water pump so it could not be used.Study the Map of Central London 1853Broad Street Pump Handle 街頭水泵Paragraph 6What is the extra evidence?
Why could the polluted water carry the disease?Two other deaths in another part of London that were linked to the Broad Street outbreak.Because cholera was spread by germs and germs can be carried by the polluted water.Paragraph 7What are John Snow’s suggestions?1.The source of all water supplies should be examined.
2. The water companies were also instructed not to expose people to polluted water anymore.How did John Snow finally defeat Cholera?As the disease spread quickly, ______ _______________________He marked on a map where all the dead people had lived, ___________________and found out _________________ was the cause. Then he suggested that the source of all drinking water______________ John began to gather information:analyze all evidencesthe polluted watermust be examined.Scientific Report by John SnowThe problemThe causeThe methodThe resultsIdea 1or2,whyThe conclusionNobody knew the cause of the serious disease of choleraStrange cloud in the air that attacked victimsPeople absorbed the disease with their mealsCollect information from the next cholera attack to test theories.Try to prove which method was correctHe found the cause of cholera was the polluted waterIdea2.Because the information showed a connection with the waterJohn snow was able to defeat cholera once its cause was knownJohn Snow经过流行病学调查
推论:“霍乱患者的粪便含有能繁殖的‘病毒’,霍乱在人群中的传播途径主要是被患者粪便污染的水源”
1883年,Robert Koch 最终发现了霍乱弧菌(Vibrio cholera )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.doctor19thcausedefeatbrokemarkedpumpsourceexamineddealing (in 5 minutes)Retell the passage according to below:
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.John Snow was a well-known doctor in London, so famous, indeed, that he attended Queen Victoria to ease the birth the her babies.
But he became inspired when he thought about helping ordinary people exposed to cholera.
Neither its cause, nor its cure was understood.
So many thousands of terrified people died every time there was an outbreak.
Key Sentences5. John Snow wanted to face the challenge and solve the problem.
6. He knew it would never be controlled until its cause was found.
7. It seemed the water was to blame.
8. To prevent this from happening again, John Snow suggested that the source of all water supplies be examined .Key SentencesWhile-reading:Questions and language points:
1. What do you know about Dr. John Snow’s being well-known in London?
(He attended Queen Victoria to ease the birth of her babies.).
e.g. I may be late – I have got another meeting to attend.
Mother had to attend to her sick son .
2. From what disease did Londoners suffer in his age?
(They exposed themselves to cholera.).
e.g. The wolf opened its mouth to expose a row of sharp teeth.
Don’t expose your skin to the sun; your skin will be hurt.Questions and language points:3. When did Dr. Snow think the disease would be controlled?
(He knew he would never be controlled until its cause was found.)
e.g. The Ministry of Health has set up a program to control the
spread of AIDS.
The buttons control the temperature in the building
4. What was the second theory explaining how the disease killed people?
(People absorbed this disease into their bodies with their meals.)
eg. Chinese history absorbs his attention recently.
be absorbed in = concentrate onQuestions and language points: 5. Did the map which Dr. Snow draw help find the cause of the disease?
(The map gave a valuable clue about the cause of the disease.)
e.g. -- What is the value of this 18k white gold diamond necklace?
-- It cost me $2,000 (=It was worth $2,000.),but I valued the necklace at $1,000.
It was a valuable diamond necklace.
We never know the value of water till the well is dry.
Questions and language points:6. What did Dr. Snow think was responsible for the disease?
(It seemed the water was to blame.)
e.g. They blamed the secretary for the delay of the plan.
The driver was not to blame for the traffic accident.
He is ready to take the blame for what had happened.
7. What did Dr. Snow advise the people in Broad Street do?
8.What else did Dr. Snow find in another part of London that were linked to the Broad Street outbreak? (In addition, he found 2 other deaths.) Questions and language points:9. What conclusion did Dr. Snow tell the public?
(He announced that polluted water carried the disease.)
e.g. The captain announced that the plane was going to land.
The army announced a cease-fire.
10. What did Dr. Snow tell the water companies?
(They were instructed not to expose people to polluted water anymore.)
e.g. She instructed me in the use of this telephone.
I've been instructed to wait here until the lecturer arrives.
Discuss with your partners then finish the chart on page 3.Post-readingTask 9 Read the passage again and answer these questions.1. Cholera was a 19th century disease. What disease do you think is similar to cholera today?2. John Snow believed Idea 2 was right. How did he finally prove it?KEY: John Snow finally proved his idea because he found an outbreak that was clearly related to cholera, collected information and was able to tie cases outside the area to the polluted water.3. Do you think John Snow would have solved this problem without the map? Give a reason.KEY: No. The map helped John Snow organize his ideas. He was able to identify those households that had many deaths and check their water-drinking habits. He identified those houses that had no deaths and surveyed their drinking habits. The evidence clearly pointed to the polluted water being the cause.Study the Map of Central London 1853准备干……,愿意干……
弄明白,搞清楚
往……里看;调查
下降;减速
另外,此外
与……有联系;与……有关
因……而死;死于
阻止某人干某事
把某人暴露给…… be ready to do slow down find out look into in addition be linked to die of prevent sb from doing expose sb to sthHomework1. Read this text again and try to find out some important or difficult words and expressions.
2. Preview “Learning about language—Discovering useful words and expressions”.Thank You