（2019版）新人教版选择性必修第二册Reading and Thinking pptppt课件.pptx

1、To get information about how John Snow defeated choleraTo summarize stages of scientific researchTo talk about the significance and contribution of Johns workThere are some great scientific achievements that have changed the world. Name some famous scientists you know and tell something about them.T

2、u Youyou She is the first Chinese Nobel laureate in physiology or medicine and the first female citizen of the Peoples Republic of China to receive a Nobel Prize in any category, as well as the first Chinese person to receive the Lasker Award.Stephen Hawking (1942-2018)British scientistworked on ast

3、ronomy and studied black holes in spaceZhong Nanshan, who has been committed to the study, prevention and treatment of major respiratory diseases and significantly contributed to the COVID-19 fight, was recommended for the Medal of the Republic nomination.COVID-19(新型冠状病毒新型冠状病毒): an infectious diseas

4、e In the early 19th century, an infectious disease similar to COVID-19 hit Europe. Now, lets read the passage to get information about the infectious disease.John Snow Defeated “King Cholera”_ analyse the results _ ask a question_ draw a conclusion _ collect data _ find a problem _ find supporting e

5、vidence_ think of a methodDiscuss the following stages of scientific research in groups. What order would you put them in?5274163What is cholera?Cholera is an infectious disease that causes severe watery diarrhea (腹泻腹泻), which can lead to dehydration (脱水脱水) and even death if untreated. It is caused

6、by eating food or drinking water containing a bacterium called Vibrio cholerae. The disease is most common in places with poor sanitation (卫生设施卫生设施), crowding and war. Common locations include parts of Africa, south Asia, and Latin America.n. 霍乱霍乱Here are some facts about cholera. Try to present the

7、m to your partners and consider whether they are the same as you expected.1. Cholera can kill sufferers within a few hours if they are left untreated.2. Researchers have estimated that each year there are 1.3 million to 4 million cases of cholera, and 21, 000 to 143, 000 deaths worldwide due to chol

8、era.3. Up to 80% of cases can be successfully treated with oral rehydration solution (口服补液口服补液).4. Safe water and waste control can prevent cholera.5. When there is an outbreak of cholera, it is important to focus on treatment and waste control.6. Safe and effective cholera vaccines (疫苗疫苗) are now u

9、sed to control the disease.7. Today, no country requires proof of cholera vaccination as a condition for entry.Skim the passage to see if the order you decided above was correct, and choose the main idea of the passage.A. John Snow was a well-known doctor in London.B. The cause of Cholera was pollut

10、ed water.C. The source of all drinking water should be examined.D. How John Snow collected, analysed data and found the cause of the disease and defeated it .Use the stages in examining a new scientific idea to describe each paragraph.draw a conclusionfind a problemask a questioncollect datafind sup

11、porting evidenceWhat 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.Read the passage again and co

12、mplete the chart below.It was believed 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 afte

13、r _.The pump water carried _.The _ of the pump was removed. airfood or watermarked on a mapdiedwater pumphadntdrinkingcholera germshandleA. C. B. D. E. water from the pumpmultiple deaths happened here.No death happened here.The water from the pump was to blame.Public houseClue: free beer from public

14、 houseResult:The water came from the river which had been polluted by the dirty water from London.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 _DCBEARead the passage again and tell whet

15、her the following statements are true (T) or false (F).1. Many people died of cholera before its cause was found. ( )2. It was a fact that cholera spread in a cloud of gas. ( )3. When cholera broke out in 1854, it spread quickly through poor neighbourhoods. ( )4. The people who drank beer instead of

16、 water did not catch cholera. ( )5. The water companies were asked to stop supplying polluted water to people. ( )TTFT TWhat questions 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 of the

17、 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.caused cholera according to Snowdid Snow have the handle of the pump removedwas the cholera threat defeatedBelow is a summary of the text with some words missing. Choose the rig

18、ht words from the box and make the summary complete. Then try to retell the story to your partners.most, river, London, understood, water, sourcesNo one 1. _ cholera and every time it came, thousands died. Queen Victorias doctor, John Snow, wanted to find out how it was caused. When the disease came

19、 to 2. _ again in 1854, SnowLondon understood noticed that 3. _ of the 500 people who died had drunk the water from a water pump in Broad Street. He concluded that the 4. _ was to blame and found that the pumps water came from a dirty 5. _. After he stopped people from using the pump, people gradual

20、ly stopped dying. Snow suggested all 6. _ of water be checked and water companies take care not to supply people with dirty water. In this way, cholera was defeated. most, river, London, understood, water, sourcessources mostwaterriver1. What was the most important tool Snow used to defeat cholera?

21、What common medical tools, e.g. a microscope, didnt he use? Why?He used maps and statistics to analyse where the deaths occurred. He didnt use a microscope, for example. Hedidnt test the water, nor did he draw blood or examine patients. The reason he did not use medical equipment such as a microscop

22、e was because they did not exist during his time. Further, understanding of germs and bacteria was still developing, and he had to innovate methods himself based on the theory he believed2. How has John Snows work affected our daily lives? Snows work has provided readily available clean water to dri

23、nk, for example, as well as an emphasis on hlygiene such as the need to wash hands after they become dirty. He also showed how to prevent cholera epidemics, and transformed the way scientists study diseases, which has allowed for more protection from once common diseases such as cholera.What spirits can we learn from a scientist like John Snow?creativestrictpatientdetermined positivehard-workingconfidentambitious概要写作概要写作根据课本根据课本P2P3内容写一篇内容写一篇60词左右的内容概要。词左右的内容概要。