Unit 1 Science and Scientists Reading and Thinking 课件 -【大单元教学】高中英语同步备课系列(人教版2019选择性必修第二册）

John Snow Defeats “King Cholera” Unit 1 Reading and Thinking Lead-in What disease can you think of when you look at these pictures? COVID-19 Lead in Are you familiar with these situations ? Mask up Get vaccinated Self-isolation Positive measures are taken by humans to fight against COVID-19. coronavirus[kəˈrəʊnəvairəs] Besides coronavirus, what other kinds of epidemics (流行病) do you know? bird-flu plague[pleiɡ] Ebola [iˈbəʊlə] malaria [məˈleriə] Who Helped Defeat Malaria? What are the symptoms (症状) of Cholera？ It begins in the stomach and a severe case can lead to death without immediate treatment. dehydration (缺水) severe vomiting (呕吐) diarrhea (腹泻) 5 Many years ago, a terrible disease named cholera in the world killed millions of people. People were very afraid of it, but they didn' t know what to do. Luckily, a young doctor decided to find out how to prevent and treat the disease. Finally, the doctor won the battle. John Snow 6 Pre-reading John Snow Defeats “King Cholera” Who ? How ? What ? The text is mainly about ____________ and _______ he defeated king cholera. John Snow how scientific research Prediction 1. Discuss the following stages of scientific research in groups. What order would you put them in? Stages of Scientific Research ______ analyse the results ______ ask a question ______ draw a conclusion ______ collect data ______ find a problem ______ find supporting evidence ______ think of a method While reading Para1 Para 2 Para 4 Para 5 John Snow desired to destroy cholera. John Snow decided to prove the second theory. Snow began his study by marking on the map and the process. Truth of the infection of cholera Snow's contributions Para 3 Read the passage quickly and get the main idea of each paragraph. While-reading Read for details. P1 John Snow Who? What? A _________doctor who even attend _______________ when she gave birth. He had desire to ________________once and for all. famous Queen Victoria destroy cholera Though being famous, he was still devoted to defeating “King Cholera” While Reading-Careful reading Cholera Jone It's one of ________________________ in the world, because it causes _______________________________. _______________________(when), an outbreak of cholera hit _______ milions of people ______________________. He rose to become _________________ , and even _______________ Queen Victoria when she gave birth.. Snow became ________ because no one knew _________________. However, he had a desire to __________________ once and for all. the most feared diseases severe diarrhoea and dehydration Read Para 1 carefully and fill in the mind map In the early 19th century Europe died from the disease “King Cholera” frustrated how to prevent or treat cholera a famous doctor attended to destroy cholera Though being famous, he was still devoted to defeating “King Cholera” Ask a question Two contradictory theories P2 two theories The first theory The second theory Cholera was caused by _________________. Cholera was caused by _____________________ __________________________________________. bad air an infection from the germs in food or water. He needed proof . Snow subscribed to the ________ theory. second Think of a method& collect data Para. 3 1. What method did Snow use? 2. What did he find on the map? What did he do to deal with it? A map of Broad Street water pump beer pub Many deaths happened here. No deaths happened here. Snow suspected that the water pump was to blame. It was believed that cholera was caused by bad ____ or germs in____________. A Snow ____________ the places where the people who _______ had lived. B Many deaths occurred near the _____________ in Broad Street. Some people _________ drunk the water from the pump, and lived. A woman and her daughter died in another part of London after ____________________. The pump water carried ______________ The ________ of the pump was removed. theories process air food or water died investigated water pump hadn’t drinking the pump water cholera germs handle Solution Conclusion Find supporting evidence Read Para. 2-3 again and complete the chart below. C D E conclusion evidence process solution theories 14 1. What caused the outbreak of cholera in London? A. Bad air B. Water infected by raw waste C. Polluted air D. Water polluted by the air 2.Why was John Snow considered the father of modern epidemiology? [ˌepɪˌdiːmiˈɒlədʒi] 1. He helped people know how to prevent cholera . 2. He transformed the way scientists study diseases in use of map and statistics. While reading Read Para.4 and Para.5 carefully to answer the two questions. draw a conclusion find a problem ask a question collect data find supporting evidence What causes cholera? Which theory is correct? Mark information on a map to find out where people died or did not die. Find other evidence to confirm the conclusion. The water is to blame. The source of all drinking water should be examined so that it is safe. Use the stages in examining a new scientific idea to describe each paragraph. As a doctor, he helped us to ____________________. As a scientist, he found out _________________________. Evaluation of John Snow what caused cholera prevent cholera hard work devotion determination passion creativity selflessness critical thinking Common characteristics What qualities do you need to be a scientist?. Homework: Read the passage and review the words and expressions in it. Write a short story about a scientist. $$