Unit1 Science and Scientists Reading and Thinking 课件-2025-2026学年高中英语人教版选择性必修第二册

该高中英语课件围绕科学研究步骤，以约翰·斯诺战胜霍乱为案例，通过视频观看、问题问答（如霍乱症状）及预读预测（如“斯诺如何战胜霍乱”）搭建学习支架，帮助学生衔接科学研究理论与文本实践知识。 其亮点在于融合语言能力（听力填空、小组报告）、思维品质（分析研究步骤、对比霍乱传播理论），通过地图数据分析、假设验证等任务型活动，学生提升语言运用与批判性思维，教师可借助结构化设计高效开展教学。

Place the steps of scientific research in order Think of a method Collect data Ask a question Analyze the results Find a problem Find supporting evidence Draw a conclusion Place them in order 1 2 3 4 5 6 7 Think of a method Collect data Ask a question Analyze the results Draw a conclusion Find a problem Find supporting evidence Unit 1 Science and Scientists Reading and Thinking John Snow Defeats “King Cholera” 3 By the end of this lesson, you will be able to: Recognize the stages of scientific research ; Understand John Snow’s scientific method； Extract the outstanding qualities of scientists. Learning Objectives 4 Pre-reading Watch a video & answer 2 questions ① What’s wrong with the boy’s father? ② What are the symptoms (症状) of Cholera？ Lead-in Lead-in 6 Pre-reading Watch a video & answer 2 questions ① What’s wrong with the boy’s father? ② What are the symptoms (症状) of Cholera？ Lead-in What are the symptoms (症状) of Cholera？ dehydration (缺水) severe vomiting(呕吐) diarrhea(腹泻) It begins in the stomach and a severe case can lead to death without immediate treatment. How should the boy and the nurse help his father ? Let’s read the text and find out the solutions! Who was John Snow? How did he defeat Cholera? What is Cholera? What might be talked about in the text? Pre-reading The text is mainly about and he defeated king cholera. John Snow how 10 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. Activity 1: Read for the Structure Reading Para. 1: What is cholera? Who is Snow? Para. 2-3: How did Snow defeat cholera Para. 4: The truth of cholera Para. 5: John Snow’s contribution The structure of this passage problem (Para 1) theories (Para 2) process (Para 3) conclusion (Para 4) solution (Para 5) How many parts can this article be divided into? 12 Activity 2:Read for Details (Para.1) Listen to the tape and then fill in the blanks . Thread: scientific research stages Para.1 1. Who was John Snow? 2. What is King Cholera? IN CONSEQUENCE (OF STH) 14 Cholera It’s one of in the world, because it causes . (when), an outbreak of cholera hit , millions of people . John Snow He rose to become , and even Queen Victoria when she gave birth. However, he had a desire to once and for all. Para.1 the most feared diseases severe diarrahoea and dehydration In the early 19th century Europe died from the disease a famous doctor attended to destroy chlolera Wide outbreak Severe symptoms(症状）and even death No way to control or prevent ...... Conclusion: Because cholera was so powerful that it was difficult to defeat. Why was cholera called king cholera at that time? Further thinking: Is it called the king because we admire him or we respect him? Activity 3:Read for Details (Para.2) Read paragraph 2, compare the two contradictory theories and find a problem. Thread: scientific research stages Cholera was caused by an infection from germs in food or water. bad air caused the disease 1. What were the two contradictory theories? 2. Which did John Snow subscribe to? Two contradictory theories It was correct,but he still needed proof. Para.2 “totally different” “agree with/support” subscribe to something (formal) to agree with or support an opinion, a theory, etc. 18 What method did John Snow use? Scientific research stages stage 1: find a problem stage 2: ask a question stage 3：think of a method /sɪˈvɪə(r)/ Two streets caught his attention. 19 Activity 4:Read for Details (Para.3) Read paragraphs 3 and focus on the scientific procedures. 3rd stage: Think of a method 4th stage: Collect data 5th stage: Analyze the results(data) 6th stage: Find supporting evidence 7th stage: Draw a conclsion Task 3 Thread: scientific research stages Para.3 What method did John Snow use? By marking on a map Reading Instrctions *Collect data(Assistant) Mark the pump Mark the house with multiple death (more than 4 deaths) in Broad Street Mark the house with no death *Analyse the result (John Snow) Why are there multiple deaths or no deaths? What conclusion can be drawn from the map? Group work:You are John Snow giving a short report while your partner is the assistant who marks the information on the map. They drunk the water from the pump. They drunk free beer from the Public house. pub multiple deaths happened near the water pump. Pair work He suspected that the water from the pump was to blame. Para.3 find the supporting evidence assumption Para.3 supporting evidence conclusion solution results assumption Para.3 遏制了疾病的蔓延。 24 Summary: Stages of Scientific Research find a problem ask a question collect data think of a method analyze the results find the supporting evidence draw a conclusion Para.2-3 25 Activity5 : Read for details (Para 4-5) Water companies began to sell clean water. The threat of cholera around the world decreased. He helped people know how to prevent cholera. Snow transformed the way scientists study diseases. 2. What contributions(贡献) did John Snow make? The Father of Modern Epidemiology 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 Critical thinking Why could John Snow defeat King Cholera? Discuss the qualities of John Snow based on what he did, giving evidence to support your conclusion. 27 Why was it John Snow, not other doctors, who defeated King Cholera? Can you find the evidence from the text to support your idea? It was …that made him defeat cholera, since… (supporting details in the passage) I believe that...helped him defeat cholera because… brave We don’t regard any scientific theory as the absolute truth. — Kenneth R. Miller John Snow was able to defeat King Cholera because of his unique approach, relentless investigation, and use of evidence-based reasoning. Scientific Curiosity: Dr. John Snow had a curious and inquisitive mind. He was driven by a thirst for knowledge and sought to understand the causes and transmission of diseases like cholera. Analytical Thinking: Dr. John Snow possessed strong analytical skills. He meticulously collected and analyzed data, particularly in his study of the 1854 Broad Street cholera outbreak in London, which helped him identify the source of the disease. Dedication to Public Health: Dr. John Snow was dedicated to improving public health. His work on cholera helped establish the field of epidemiology and laid the foundation for modern public health practices. Persistence and Determination: Despite facing resistance and skepticism from the medical establishment, Dr. John Snow persisted in his efforts to prove his theories about the spread of cholera. His determination ultimately led to the acceptance of his findings and a significant reduction in cholera outbreaks. Innovative Approach: Dr. John Snow was innovative in his approach to studying cholera. His use of maps and data visualization techniques to track cases and identify patterns was groundbreaking at the time. These qualities and his groundbreaking work in understanding and combating cholera have made Dr. John Snow a prominent figure in the history of public health. 28 Para.1 brave expert professional determined caring, responsible critical thinking; questioning mind creative, innovative tireless, diligent Example: It’s my great honour to present this award to John Snow. 1. Snow’s contributions and effects 2. Snow’s good qualities and reasons Let’s congratulate on him! Suppose that John Snow were given a Lifetime Achievement Award, write a few lines to honor him in the ceremony. Activity 6 : Transferring and creating Show time! Self-assessment Do you understand John Snow’s research process? Are you inspired by John Snow’s outstanding qualities? Do you have a better understanding about how to be successful? To raise new questions, new possibilities, to regard old problems from a new angle requires creative imagination and marks real advance in science. ----Albert Einstein& Leopold Infeld 提出新的问题，发现新的可能，从新的角度审视已存在的问题，这些需要创造性的想象力，并标志着科学的真正进步。 —阿尔伯特·爱因斯坦 &利奥波德·英费尔德 Quote： Homework Compulsory Task Read the passage about the biology(生物学)， and try to summarize the stages of the scientific research in this passage. Optional Tasks Explore the origin of COVID-19 and how to prevent it, then Write an essay about how Chinese scientists and doctors as well as common people fought against it. 36 Lavf58.46.101 null 50076.117 $