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1、Unit 1 Science and Scientists,on Page 2,John Snow Defeats “King Cholera”,Reading and Thinking,Talk about some great scientists,Chen Ning YangIn 1957, Lee and Yang jointly won the Nobel Physics Prize, the first Chinese Nobel Prize. He was also praised as a Well -rounded human being, one of the three
2、theoretical physicists.,Who is he?,Who is she?,Tu Youyou,She is the first Chinese Nobel winner in physiology or medicine and the first female citizen of China to receive a Nobel Prize.,Who is he?,Zhong Nanshan, who has been committed to the study, prevention and treatment of major respiratory diseas
3、es and significantly contributed to the COVID-19 fight, was recommended for the Medal of the Republic nomination.,Zhong Nanshan,Besides the coronavirus, what other kinds of epidemics（流行病） do you know?,Bird-flu 禽流感 malaria 疟疾plague 鼠疫 Ebola 埃博拉 Smallpox 天花Cholera 霍乱,John Snow Defeated “King Cholera”,
4、John Snow Defeats “King Cholera”,约翰斯诺（1813-1858) , 英国医生，19世纪50年代因其对霍乱病源的研究和贡献享誉世界医学界，被公认为流行病学奠基人之一。斯诺1836年起接受正规医科教育，1844年毕业于伦敦大学。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，发现了霍乱与饮用不洁水的关系。在他的呼吁下，政府及时关闭了不洁水源，有效制止了霍乱的流行。虽然斯诺没有发现导致霍乱的病原体，但他创造性地使用空间统计学查找到传染源，并以此证明了这种方法的价值。今天，绘制地图已成为医学地理学及传染病学中一种基本的研究方法。“斯诺的霍乱地图”成了一个
5、经典案例。,The text is mainly about _ and _ he defeated king cholera.,how,John Snow,Look at the picture, the title and the map, guess what the content of the text is. Then skim it quickly to see if you are right.,Fast-reading,Page 2,Exercise 1Discuss the following stages of scientific research in groups.
6、 what order would you put them in?_analyes the results _ask a question_draw a conclusion_ collect data_find a problem_ find supporting evidence_think of a methord,5,2,7,4,1,6,3,Skim the passage to see if the order you decided in Activity 1 was correct. 3. Read the passage again and complete the char
7、t below.(page3),It was believed that cholera was caused by bad _or germs in,water pump in Broad Street,cholera germs,drinking water from the pump,hadnt,handle,air,food or water,marked on the map,died,scan the text quickly and complete the form.,What? Who?,How?,The truth,Results and significance,Chol
8、era hit London in 1854. John Snow decieded to destroy it,John Snow began to test the theory, using statistics and maps.,The water carried the disease.,King Cholera was defeated. Snow thransformed the way scientists study dseases.,Ask the students to read the first paragraph to complete the following
9、 the mind map,What? It is one of _. When?_. Where?_. What consequence?_.,cholera,Who? A_ doctor who even attended _ when she gave birth.What?He had a desire to _ once and for all.,JohnSnow,the most feare diseases,in the early 19th century,Europe,millions of people died,young,to Queen Vicroria,destro
10、y cholera,1. What caused the outbreak of cholera in London in 1854?2. How can we prevent cholera? 3. What contributions did John Snow make to science？,The water which came from the River Thames and had been infected by waste.,By drinking pure or boiled water, and eating clean food.,He helped poplele
11、 know how to prevent cholera. He transformed the way scientists study diseases by using maps and statistics.,1. Which of the following did John Snow think was the most important to defeat a disease? A. Finding its cause. B. Finding its cure. C. Finding its result. D. Finding its harm.,A,2. How did J
12、ohn Snow do the research? A. By usin gmaps and statistics. B. By drinking the water himself. C. By questioning the patients. D. By experimenting with himself.,A,3. What made John Snow the father of modern epidemiology?A. His tireless efforts and workB. His solution to the decrease of cholera.C. His
13、use of maps and statistics.D. His fortune of discovering the cause of the disease.,C,4. What can we learn from the passage? A. Polluted water was a main reason for spreading cholera. B. Broad Street and Cambridge Street had their own water pumps. C. Cholera spread through air. D. John Snow found the
14、 cause of cholera by accident.,A,Page 3,Exercise 4Match the following headers with the letters from the chart above. Write A-E in the blanks.1. conclusion_ 2 evidence_3 process_4 solution _ 5 theories_,D,C,B,E,A,5. Write out the questions according to the answers. (page3),1.Q: How did Snow think Cho
15、lera was caused?A: Snow thought that cholera was caused by germs in food or water.2. Q:Why did Snow have the handle of th epump received?A: Snow had the handle of th epump removed so that it could not be used.,5. Write out the questions according to the answers. (page3),3.Q: How was the cholera threat defeated?A: The cholera threat was defeated thanks to the work of John Snow.,Thank you!,