【课件】Unit1Reading+and+Thinking+课件人教版（2019）选择性必修第二册.pptx

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1、UNIT 1 SCIENCE AND SCIENTISTSReading and ThinkingUnderstand the questioning mindTeaching objectives：行业PPT模板http:/hangye/1.To know about John Snow and cholera.2.To summarize the main idea.3.To find out the stages of scientific research in this passage01Pre-readingtake temperaturerun nucleic acid test

2、s（核酸检测）get vaccinated（接种疫苗）Are you familiar with these situations?We have took measures to fight against coronavirsus!Besides coronavirus,what other kinds of epidemics （流行病）have you heard of?Discuss the stages of scientific research in groups.Draw a conclusion Think of a methodCollect results Analys

3、e the results Ask a questionFind a problem Find supporting evidenceCan you put them in order and translate them into Chinese?Page2 activity1Seven stagesfind a problemfind a problem发现问题ask ask a questiona question提出问题think of a methodthink of a method思考方法collect datacollect data收集数据analyze the result

4、sanalyze the results分析结果find supporting evidence 收集证据draw a conclusion得出结论Read the title and predict.John Snow Defeats“King Cholera”Who?How?What?02Fast-reading1Whats the main idea of the passage?AHow John Snow found the cause of cholera and defeated it.BThe cause of cholera was polluted water.CThe s

5、ource of all drinking water should be examined.DJohn Snow was a well-known doctor in London.Fast-reading for main ideasPara1 Para 2 Para 4Para 5 John Snow desired to destroy cholera.John Snow decided to prove the second theory.Snow began his study by marking on the mapand the process.Truth of the in

6、fection of choleraSnows contributionsPara 3 Read the passage quickly and get the main idea of each paragraph.Para1 Para 2 Para 4Para 5 Para 3 Fast-reading for main ideas03Careful-readingJohn SnowWho?A doctor who even attend to _ when she gave birth.What?He had a desire to _ once and for all.BritishQ

7、ueen Victoriadestroy choleraWhat?Its one of _ in the world,because it causes .When?_Where?_Whats the result?_the most feared diseasessevere diarrhoea,dehydration and even death In the early 19th centuryEuropeMillions of people died from the diseaseRead para.1 quickly and fill in the mind map.Cholera

8、Read para.2 carefully and answer the questions.proof proof 1.What are the two theories?investigate investigate 2.Which of the following theories did John Snow believe?A.A cloud of dangerous gas would float around until it found its victims.B.People absorbed cholera germs into their bodies with their

9、 meals.C.People got infected with cholera because of polluted air.D.People suffered from cholera because they were not clean.Para.3 Stage 3 think of a method Stage 4 collect data Stage 5 analyze the results Stage 6 find supporting evidence Stage 7 draw a conclusion Find the seven stages in Para.3 Pa

10、ra.3 Stage 3 think of a methodmarkmap Find the seven stages in Para.3 public house酒吧 deathnumbers of housesObserve the map and analyse it with questionsPara.3 Stage 6 find supporting evidence Multiple deaths happened here.No death happened here.Public houseClue 1:They drunk the water from the pump.C

11、lue 2:They drunk free beer from the Public house.Water pumpClue 3:She had the water from the pump delivered to her house every day.Why did a woman and her daughter died of cholera after moving away from Broad Street？1.Which house numbers had more than 4 deaths in Broad Street？Why?2.Which house numbe

12、rs had on deaths in Broad Street？Why?Para.3 Stage 7 draw a conclusion As a result of this As a result of this evidence.evidence.announceannounceTask2.Read Para.2 and 3 carefully and finish activity 3 on Page3.A.It was believed that cholera was caused by _ or germs in _.D.The pump water carried _.C.M

13、any 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_.B.Snow began by _ the places where people _.E.The _ of the pump was removed.bad airfood or water marking on the mapdied had livedwater p

14、umphad notdrinking water from the pumpcholera germs1.conclusion_2.evidence_3.process_ 4.solution_5.theories_DCBEAhandleComplete activity 3 and 4 on P3.Read Para.4 and 5 carefully to answer the four questions.1.What caused the outbreak of cholera in London in 1854?2.Was cholera destroyed completely?3

15、.How can we prevent cholera?4.Why was John Snow considered the father of modern epidemiology?1.What caused the outbreak of cholera in London in 1854?The water which came from the River Thames and had been infected by waste.Para.4:The truth was that the water from the Broad Street pump had been infec

16、ted by waste.Some companies sold water from the River Thames that was polluted by raw waste.Read Para.4 and 5 carefully to answer the four questions.2.Was cholera destroyed completely?No.Para.5:Through Snows tireless efforts,water companies began to sell clean water,and the threat of cholera around

17、the world saw a substantial decrease.However,cholera is still a problem.Each year,millions of people around the world get cholera and many die from it.Read Para.4 and 5 carefully to answer the four questions.However3.How can we prevent cholera?By drinking pure or boiled water.Para.4:The truth was th

18、at the water from the Broad Street pump had been infected by waste.The people who drank this water were much more likely to get cholera than those who drank pure or boiled water.a.干净的Read Para.4 and 5 carefully to answer the four questions.4.Why was John Snow considered the father of modern epidemio

19、logy?He transformed the way scientists study diseases in use of map and statistics.Para.5:Fortunately,we now know how to prevent cholera,thanks to the work of John Snow.Moreover,in his use of maps and statistics,Snow transformed the way scientists study diseases.For this reason,Snow is considered th

20、e father of epidemiologyRead Para.4 and 5 carefully to answer the four questions.For this reason,Snow is considered the father of epidemiology04Post-reading1How did John Snow find out the cause of the disease?A.By living in the area where cholera broke out.B.By marking on a map the exact places wher

21、e all the dead people had lived.C.By telling the terrified people how to prevent it.D.By saving the dying people suffering from cholera.2After he made further investigations，John Snow found .A.cholera multiplied in the airB.people absorbed this disease into their bodies with their mealsC.the water f

22、rom the polluted pump was to blameD.flies spread the disease3Why did Snow suspect the water pump was to blame?ABroad Street witnessed a lot of deaths.BIt was clear that the water in the pump was polluted.CA woman and her daughter moved away.DThose people working in the pub survived.4.Where does this

23、 passage probably come from?AA newspaper.BA medical report.CA book review.DA TV interview.1.What questions would you ask to get the following answers?Q:What _?A:Snow thought that cholera was caused by germs in food or water.Q:Why _?A:Snow had the handle of the pump removed so that it could not be us

24、ed.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 defeated2.What qualities do you need to be a scientist?determinationdevotionhard workstrict attitudeselflessnesscreativitypa

25、ssionRetell the story In the early 19th century _ an outbreak of cholera hit Europe,million of people died from the disease.John Snow,who subscribed _ the theory that cholera _ (cause)by an infection from germs in food or water,_(desire)to destroy cholera._(use)maps and statistics,John Snow was able

26、 to announce that the pump water _(carry)cholera germs.Through Snows tireless _(effort),the disease was stopped in its tracks.Now we have known how _(prevent)cholera.Transforming _ way scientists study diseases,John Snow _(consider)the father of modern epidemiology.whentowas causeddesiredUsingcarriedeffortsto preventtheis consideredTHANKS