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1、John Snow defeats “King cholera”,Reading,John Snow defeats “king cholera”,What can you learn from the title?,人物： 事件：,defeats cholera,Who is John Snow?,What happened to them?,Queen Victoria,John Snow 约翰.斯诺(1813 1858), 英国麻醉学家、 流行病专家。他首次提出了 预防霍乱的措施。1854年, 伦敦霍乱流行, 斯诺通过研究 霍乱病死者的日常生活情况, 寻找到他们的共同行为模式, 发现了霍
2、乱与饮用不洁水的 关系, 由于及时切断了二者 的联系, 有效制止了霍乱的 流行。,Four outbreaks of cholera in the 1830s and 1840s killed many people in England. In 1854, “the most terrible outbreak of cholera which ever occurred in the kingdom” began. It was so violent and sudden that 127 people died in the first three days.,The terrible
3、cholera,Bacteria/germs of cholera,What was the cause of this illness? How did John Snow find it out?,Skim the text and find the main idea of the text.,The passage is mainly about:,How _found the cause of The_ and defeated it.,John Snow,cholera,Read the text quickly and quietly to match the Stages in
4、 an experiment and the Example in this investigation,Read the passage quickly and find the number below and the relevant happenings in the passage.,The first suggested thatmultiplied in the air; The second suggested absorbed this disease into their bodies with their meals.,Another outbreak hit Londo
5、n.,More than 500 people had died in 10 days.,These numbers in Broad Street near the water pump had many of the deaths,20 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.,1. T
6、he passage mainly tells us that _. the cause of cholera was polluted water B. John Snow was a well-known doctor in London C. the source of all drinking water should be examined D. John Snow did some research and helped to solve “King Cholera”,Choose the best answer.,D,2. What was the key help for Jo
7、hn Snows discovery? A. The government. B. The woman moving away from Broad Street. C. The water company. D. The map made by himself.,D,1. John Snow believed Idea 2 was right. How did he finally prove it?,John Snow finally proved his idea because he found an outbreak that was clearly related to chole
8、ra, collected information and was able to tie cases outside the area to the polluted water.,Read and answer the questions.,2. Do you think John Snow would have solved this problem without the map? Give a reason.,No. The map helped John Snow organize his ideas. He was able to identify those household
9、s 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.,Summary,John Snow was a well-known _ in London in the _ century. He wanted to find the
10、_ of cholera in order to _ it. In 1854 when a cholera _ out, he began to gather information.,doctor,19th,cause,defeat,broke,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.,marked,pump,source,examined,dealing,Thank You!,
