(
课件网) Unit 1 Science and Scientists Reading and Thinking 人教版2019选择性必修第二册 Learning Objectives Understand the main plot of John Snow’s fight against cholera. Grasp the 7 stages of scientific research. Admire John Snow’s qualities (devotion, critical thinking, creativity) and develop respect for scientists. 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[k r n vair s] It was discovered in the human body in 2019. The virus is generally characterised by fever, dry cough and gradually dyspnea(逐渐出现呼吸困难). The virus was confirmed to be with the phenomenon of human transmission and have latent infection. The disease had no specific treatment at that time, so it broke out in 2020 and swept the globe. COVID-19 Besides coronavirus, what other kinds of epidemics (流行病) do you know bird-flu plague[pleiɡ] Ebola [i b l ] malaria [m leri ] Who Helped Defeat Malaria There are some great scientific achievements that have changed the world. Name some famous scientists you know and tell something about them. Tu Youyou She is the first Chinese Nobel laureate (荣誉获得者) in physiology or medicine and the first female citizen of the People’s Republic of China to receive a Nobel Prize in any category (范畴), as well as the first Chinese person to receive the Lasker Award. Lead-in： Stephen Hawking (1942-2018) British scientist worked on astronomy and studied black holes in space Zhong Nanshan who has been committed to the study, prevention and treatment of major respiratory (呼吸道的) diseases and significantly contributed to the COVID-19 fight, was recommended for the Medal of the Republic nomination. What are the symptoms (症状) of Cholera？ Lead-in： 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) Many years ago, the 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 How did he win the battle Pre-reading： What will be talked about from the title John Snow Defeats“King Cholera” Who How What The text is mainly about _____ and _____ he defeated _____. John Snow how king cholera scientific research Pre-reading： 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： Read the whole text quickly and match the main ideas. Para. 1 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. Truth of the infection of ... ...
