广东省广州市培才高级中学高中英语《Unit 1 Great scientists》reading课件 新人教版必修5

John Snow defeats “King cholera”John Snow defeats “king cholera”What can you learn from the title?人物：人物：事件：事件：defeats cholera Who is John Snow?What happened to them? attended her as her personal physicianQueen VictoriaJohn Snow 约翰约翰.斯诺斯诺(1813 1858), 英国麻醉学家、英国麻醉学家、流行病专家。他首次提出了流行病专家。他首次提出了预防霍乱的措施。预防霍乱的措施。1854年年, 伦敦霍乱流行伦敦霍乱流行, 斯诺通过研究斯诺通过研究霍乱病死者的日常生活情况霍乱病死者的日常生活情况, 寻找到他们的共同行为模式寻找到他们的共同行为模式,发现了霍乱与饮用不洁水的发现了霍乱与饮用不洁水的关系关系, 由于及时切断了二者由于及时切断了二者的联系的联系, 有效制止了霍乱的有效制止了霍乱的流行。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 127people died in the first three days.The terrible choleraBacteria/germs of cholera Name of illness cholera (霍乱霍乱) Symptom(症状症状)severe vomiting (呕吐呕吐) and diarrhoea (腹泻腹泻) Aftereffect (后果后果)die quickly from a loss of liquidWhat 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 choleraRead the text quickly and quietly to match the Stages in an experiment and the Example in this investigationRead the passage quickly and find the number below and the relevant happenings in the passage.Two theoriesIn 1854500 ； 10The first suggested thatmultiplied in the air; The second suggestedabsorbed this disease into their bodies with their meals.Another outbreak hit London.More than 500 people had died in 10 days.16, 37, 38 and 4020, 21; 8, 97These 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.1. The passage mainly tells us that _.A. the cause of cholera was polluted water B. John Snow was a well-known doctor in LondonC. the source of all drinking water should be examinedD. John Snow did some research and helped to solve “King Cholera”Choose the best answer. D 2. What was the key help for John 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 cholera, 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 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.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.doctor19thcausedefeatbrokeHe _ 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.markedpumpsourceexamineddealing