JohnSnowDefeatsKingCholera阅读公开课课件.ppt

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1、高二人教新课标版必修五高二人教新课标版必修五What do you know about great scientists?Try this quiz and find out who knows the most.1.Which scientist discovered that objects in water are lifted up by a force that helps them float?Archimedes(Greek)2.Who used peas to show how physical characteristics are passed from parents

2、to their children?Gregor Mendel Czech(捷克人捷克人)Marie Curie(Polish&French)3.Who discovered radium?Zhang Heng(Chinese)seismographStephen Hawking(British)black holeTu Youyou(Chinese)Qinghao common characteristicscautiouspositivestrictCo-operativecreativebrightenthusiasticJohn Snow defeats“King cholera”Jo

3、hn Snow defeats“king cholera”What can you learn from the title?who:what:defeats cholera He attended her as her personal physicianQueen VictoriaWhat s their relationship?What is cholera?Skim the text and find the main idea of the text.The passage is mainly about:A.why he is famous B.his familyC.the c

4、ause of choleraD.how he found out the causeC.his personalityRead the passage quickly and find numbers and information related to these numbers.Fastreading:The first suggested thatmultiplied in the air;The second suggestedabsorbed this disease into their bodies with their meals.Another outbreak hit L

5、ondon.More than 500 people had died in 10 days.These numbers in Broad Street near the water pump had many of the deaths20 and 21 Broad Street and 8 and 9 Cambridge Street had no deaths.They didnt drink the water from the Broad Street pump.These families worked in the pub at 7 Cambridge Street.163720

6、89pump3840BROAD STREETCAMBRIDGE STREET21John Snows Cholera Map7PubWhat is the problem?The cholera was the most deadly disease of its day.Neither its cause,nor its cure was understood.What caused cholera?Make a question:Which theory to believe in?Cholera multiplied in the air without reason.A cloud o

7、f dangerous gas would float around until it found its victims.People absorbed it with their meals.Which one do you believe more?What about John Snow?A map of Broad StreetWhat method did he use?Broad StreetMany deaths happened here.No death happened here.It seemed the water from the pump was to blame

8、.What did he do next?Public house(Para 6)What was another supporting evidence?(Para 5)He looked into the source of the waterJohn Snow was able to announce with certainty that polluted water carried the germs.John Snow began to test two theories.An outbreak of cholera hit London in 1854.He announced

9、that the water carried the disease.John Snow marked the deaths on a map.2147Carefulreading: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.John Snow investigated two streets where the outbreak was very severe.3856KEY:Joh

10、n 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.Read and answer the questions.KEY:No.The map helped John Snow organize his ideas.He was able to identify those househ

11、olds 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.3.Cholera was a 19th century disease.What disease do you think is similar to cholera tod

12、ay?KEY:Four diseases,which are similar today,are SARS,AIDS,TB(肺结核肺结核)and bird-flu,because they are very serious,have an unknown cause and need public health care to solve them.What should we pay attention to in our daily life in order not to get infected with cholera?Heat the food left overnightCook raw food thoroughlyWash hands oftenKeep away from flieschoose fresh sea foodKeep the kitchen cleandeal with rubbish properlyDrink boiled waterDiscussion1.Prepare for dictation.2.阅读训练第一篇(阅读训练第一篇(P2 passage A)Homework

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