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课件网) Unit 1 Science and Scientists Reading and Thinking John Snow Defeats “King Cholera” In this class, you will 1.To get information about John Snow, Cholera and how John Snow defeated cholera 2.To summarize stages of scientific research by analyzing how John Snow defeated cholera 3.To talk about the significance and contribution of John’s work Learning Objectives Are you familiar with these situations Mask up Nucleic acid tests Online lessons Lead in coronavirus infectious Lead in Besides coronavirus, what other kinds of epidemics(流行病) do you know Lead in Who How What What might be talked about in the text Why Cholera was called “King” at that time Personification Because it claimed/took a lot of lives. Skim the title and prediction While-reading John Snow desired to _____ cholera. John Snow decided to prove _____ theory. Snow began his study by _____. _____ of the infection of cholera. Find out the main idea of each paragraph. Para. 1 Para. 2 Para. 3 Para. 4 The results and the _____of Snow’s work. Para. 5 What &Who How The truth Results destroy the second marking on a map The truth significance While-reading Read for the structure Read for Details (Para.1) Read Para. 1 and finish the information cards John Snow King Cholera Identity: Symptoms: Consequence: Occupation: Nationality: Desire: one of _____ in the world _____ of people died from it when it hit Europe in the early 19th century _____ _____ when she give birth) the most feared diseases severe diarrhoea, dehydration, and even death Britain Millions A famous _____ (who even attend to _____ doctor Queen Victoria To destroy cholera once and for all. While-reading Read for Details (Para. 2) What were the two theories and which did John Snow agree with two contradictory theories Bad air caused the disease. Cholera was caused by an infection from germs in food or water. While-reading Read for Details (Para. 2) bad air theory germ theory While-reading Read for Details (Para. 2) What method did John Snow use find a problem ask a question think of a method While-reading Para3:How did he investigate the breakout marking on a map Multiple deaths near _____ water pump 1. Which houses had more than 4 deaths and which had no death in Broad Street What information did he get from the map 2.Why did some houses near the water pump have no death These people worked in the pub and had been given free beer, and so had not drunk the water from the pump. While-reading Any other supporting proof What result did he get from the analysis Snow suspected that the_____was to blame. A woman and her daughter died in another part of London after drinking water from the pump. John Snow was able to announce: John Snow had the handle of the pump removed. What measures did John Snow take water pump that the pump water carried cholera germs. What is the truth While-reading Read for the stages. Think of a method Collect data Analyse the results Find supp ... ...
