1、To obtain and know John Snow and cholera. To get to know some reading strategies. To summarize the main idea and retell the stages for John Snows research. To talk about science and scientists. Talk about some scientific achievements you know. Chinas Mars probe (探探测测器器) Tianwen-1 successfully carrie
2、d out its first orbital (轨轨 道道的的) correction Sunday morning. The probe continued to head for Mars. All the systems of the probe were in good condition. China launched its first Mars mission Tianwen-1, which means Questions to Heaven, on July 23, marking the countrys first step in planetary explorati
3、on of the solar system. There are some great scientific achievements that have changed the world. Can you name some of them? What do you know about great scientists? Who discovered that objects in water are lifted up by a force that helps them float? Archimedes (287-212 BCE) an ancient Greek mathema
4、tician 传染传染 Seven cholera pandemics (霍乱大流行霍乱大流行) have occurred in the past 200 years. Lets take the third cholera pandemic (18521860) as an example to see its power. Place Deaths Russia one million 1858-1860 Tokyo, Japan 100,000 200,000 1854 Chicago 3,500 18531854 London 10,739 18541855 Spain over 2
5、36,000 Mexico 200,000 Because of some scientists great efforts, now the cholera is not as serious as that time. Read the passage quickly and choose the main idea. A. John Snow was a well-known doctor in London. B. The cause of Cholera was polluted water. C. The source of all drinking water should be
6、 examined. D. How John Snow collected, analyzed data and found the cause of the disease and solved it . Use the stages in examining a new scientific idea to describe each paragraph. draw a conclusion find a problem ask a question collect data find supporting evidence What causes cholera? Which theor
7、y 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. v. 指责指责 Read the passage again and complete the chart below. It was beli
8、eved that cholera was caused by bad _ or germs in _. Snow _ the places where the people who _ had lived. 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
9、_. The _ of the pump was removed. air food or water marked died water pump hadnt moving cholera germs handle A. C. B. D. E. away from Broad Street n. 细菌细菌 n.把手把手 泵泵 multiple deaths happened here. No death happened here. The water from the pump was to blame. Public house Clue: free beer from public h
10、ouse Result: The water came from the river which had been polluted by the dirty water from London. adj.数数量多的量多的 Match 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 What questions
11、would you ask to get the following answers? 1. Q: What _? A: Snow thought that cholera was caused by germs in food or water. 2. Q: Why _ _? A: Snow had the handle from the pump removed so that it could not be used. 3. Q: How _? A: The cholera threat was defeated thanks to the work of John Snow. did
12、Snow think was the cause of cholera did Snow have the handle of the pump removed Did people defeat the cholera threat 幸幸亏亏;由于由于 One way to approach a reading passage is to ask questions about it. Asking questions can help you understand the content. It can also help you think more deeply about the t
13、opic. Ask questions Discuss the following questions. 1. What was the most important tool Snow used to defeat cholera? What common medical tools, e.g. a microscope, didnt he use? Why? n.显微镜显微镜 Snow used a map to mark out the exact places of the deaths. It is easier to use maps to find where outbreaks
14、 are concentrated and then to find the cause of death. If he used a microscope, there were so many kinds of foods and water waiting for him to investigate, which would cost too much time. Only eat food thats been thoroughly cooked. How to protect yourself from infectious diseases? Wash hands frequen
15、tly. Keep away from the crowds. adj. 传染性的传染性的 Do you know these words and expressions? severe, frustrated, once and for all, proof, be contradictory to, be infected with, multiple, household, suspectof, handle, pure, statistic, blame sb. for (doing) sth., linkto/with, substantial, decrease by, thank
16、s to, transform (from) into Zhong Nanshan (1936.10) 著名呼吸病学专著名呼吸病学专 家，家，中国抗击非典型肺炎中国抗击非典型肺炎和新型冠状病毒和新型冠状病毒 的领军人物的领军人物。 Florence Nightingale (1820.5.12-1910.8.13) 护理事业的创始人和现代护理教育的奠基人。护理事业的创始人和现代护理教育的奠基人。 对护理学做出战略性变革，她采取的循证护理、对护理学做出战略性变革，她采取的循证护理、 分析数据、保证卫生三线并行的模式，对如今分析数据、保证卫生三线并行的模式，对如今 世界抗击疫情仍有启发。世界抗击疫
17、情仍有启发。 Alexander Fleming (1881.8.6-1955.3.11) 英国细菌学家、生物化学家、微生物学家。英国细菌学家、生物化学家、微生物学家。 于于1928年首先发现青霉素。后与病理学家弗年首先发现青霉素。后与病理学家弗 劳雷、生物化学家钱恩成功用于医治人类疾劳雷、生物化学家钱恩成功用于医治人类疾 病，共获诺贝尔生理或医学奖。病，共获诺贝尔生理或医学奖。 A. founder of modern nursing B. discovered penicillin C. managed the SARS and COVID-19 outbreak Zhong Nansha
18、n Alexander Fleming Florence Nightingale Match the people with their achievements. Who is the man in the photo? What do you know about him? Yuan Longpingfather of hybrid rice n. 杂交植杂交植(动动)物物;合成物合成物; 混合动力车混合动力车 He is father of hybrid rice, who received the honor for his great contributions to hybrid
19、rice research and the work he did to improve rice production in developing countries. He is called a pioneer for all people. Knowledge, practice, inspiration and opportunity are the four elements behind his past accomplishments. 袁隆平的八袁隆平的八字方针：知识、汗水、灵感、字方针：知识、汗水、灵感、 机遇机遇。 Which scientists do you admire? Write a short passage in 80 words to introduce him/her and the reason why you admire him/her.
