(
课件网) Defeats King Cholera 1. Get information about how John Snow defeated cholera; 2. Figure out the stages for John Snow's scientific research; 3. Extract John’s qualities and scientific spirits. Learning objectives You will be able to: What disease can you think of when you look at these pictures COVID-19 Activity1 lead-in Lead-in History repeats itself! In 1854,there was also an epidemic disease. cholera What are the symptoms (症状)of Cholera？ What are the symptoms (症状)of Cholera？ diarrhea severe vomiting dehydration Lead-in Lead-in Let’s read the text and find out the solutions! JOHN SNOW DEFEATS “KING CHOLERA” Who was John Snow How did John Snow defeat King Cholera What is King Cholera Activity2 prediction analyze the results ask a question collect data think of a method find a problem find supporting evidence draw a conclusion Can you put the research stages in right order Activity2 prediction Activity3 Read Para1 and finish the information cards. John Snow King Cholera Identity: Time and place: Result: Occupation: Nationality: Desire: one of _____ in the world Millions of people _____. the most feared diseases Britain died from it A famous _____ (who even attend to _____) doctor Queen Victoria to destroy cholera once and for all _____ _____ In the early 19th century/ Europe _____ Activity 4 Read para2 and find the theories. Stage 1 find a problem What were the 2 contradictory theories Theory 1: Cholera was caused by _____ bad air Theory 2: Cholera was caused by _____ an infection from germs Which theory did he subscribe to theory. It was correct, but he still needed proof. Consequently, when an outbreakof cholera hit London in 1854, Snow began to investigate. He discovered that in twoparticular streets the cholera outbreak was so severe that more than 500 people died inten days. He was determined to find OUt why. Para. 2 It was correct, but he still needed proof. Consequently, when an outbreak of cholera hit London in 1854, Snow began to investigate. He discovered that in two particular streets the cholera outbreak was so severe that more than 500 people died in ten days. He was determined to find out why. Stage 2: ask a question Why did so many people die in these 2 streets What did John Snow discover when another outbreak hit London Activity5 Read para3 and mark on the map. Stage3: think of a method 1. Which house had more than 4 deaths in Broad Street What similarity do they have 2. Which house had no deaths in the streets ？ Why What method did John Snow use mark on a map Notes: : multiple deaths : no death : bar : water pump Para. 3 Stage 4: collect data 1. Which house had more than 4 deaths in Broad Street What similarities did they have 2. Which house had no deaths？ Why Para. 3 Stage 5: analyze the results Snow suspected that _____was to blame. the water pump _____died in another part of London after drinking water _____. stage7:draw a conclusion The pump water____ ... ...
