高三課件unit1greatscientists-文庫吧資料
2024-11-25 11:05本頁面
【正文】 d many thousands of people in the industrial cities of England. In 1853 there were outbreaks in Newcastle and Gates head. In London more than ten thousand people died. Then in 1854 on August 31st “the most terrible outbreak of cholera which ever occurred in the kingdom” began. It was so violent and sudden that 127 people around Broad Street died in the first three days. John Snow found the cause of the disease and he was the first epidemiologist (流行病學(xué)家 ) or munity health doctor. Task 2. Ss discuss and answer the following questions. 1. What do you know about infectious diseases? What do you know about cholera? 2. Do you know how to prove a new idea in scientific research? Discuss in small groups the stages in examining a new scientific idea. What order would you put them in? Draw a concl
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