Unit+1+Reading+and+Thinking+公开课课件-2022-2023学年高中英语人教版（2019）选择性必修第二册.pptx

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1、 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提提出出新新的的问题，发现新新的的可可能能，从从新新的的角角度度审视已已存存在在的的问题，这些些需需要要创造造性性的的想想象象力力，并并标志志着着科科学学的的真真正正进步。步。阿阿尔伯特伯特爱因斯坦因斯坦 利奥波德利奥波德英英费尔德德UNIT 1

2、SCIENCE AND SCIENTISTS Reading and Thinking:Understand the questioning mindLeadinAreyoufamiliarwiththesesituations?MaskupGetvaccinatedNucleicacidtestsPositivemeasuresaretakentofightagainstCovid-19.Besides COVID-19,what other kinds of epidemics （流行病）do you know?bird-flu（禽流感）malaria mleri（疟疾）cholerakl

3、r（霍乱）Ebola bl(埃博拉)Who Helped Defeat Malaria?MALARIAWho Defeated Cholera?Read the title and predict.John Snow Defeats“King Cholera”Who?How?What?Main idea:The text is mainly about _ and _ he defeat _John SnowhowKing CholeraPara.1Paras.23Para.4Para.5 How did John Snow defeat King Cholera?Whats the trut

4、h of King Cholera?What is King Cholera?Who is John Snow?What are the contributions and significance of John Snows work?Read the passage quickly and match the main idea of each part.Read quickly and fill in the mind map.CholeraWhat?Its one of _ in the world,because it causes .When?_Where?_Whats the r

5、esult?_the most feared diseasessevere diarrhoea,dehydration and even death In the early 19th centuryEuropeMillions of people died from the diseaseJohn SnowWho?A doctor who even attend to when she gave birth.What?He had a desire to _ once and for all.BritishQueen Victoriadestroy choleraPara 1 What&wh

6、o?“King Cholera”=_ cholera“King Cholera”=_ cholera deadly Discuss the following stages of scientific research in pairs.What order would you put them in._analyze the results _ask a question_ draw a conclusion _ collect data _ find a problem _ think of a method_ find supporting evidence Para.2&31.Find

7、 a problem3.Think of a method4.Collect data2.Ask a question5.Analyse the results7.Draw a conclusion6.Find supporting evidenceStagesKey words or sentences1.2.3.4.5.6.7.analyse the resultanalyse the resultask a questionask a questiondraw a conclusiondraw a conclusioncollect datacollect datafind suppor

8、ting evidencefind supporting evidencethink of a methodthink of a methodfind a problemfind a problemWhile Reading：Para.2&3How?two contradictory theoriesin two particular street the cholera was so severe.find out whymarking on the maphouses number 16,37,38 and 40;20 and 21;8 and 9multiple death near t

9、he water pump;some houses had no death.a woman and her daughter had died,the woman liked the water.had it delivered to her houseJohn Snow announced that the pump water carried cholera germs.What were the two theories and which did John Snow agree with?Two contradictory theories Theory one:caused by

10、_Theory two:caused by _bad air germs Snow subscribed to the second theory.Para 2-3 How?A map of Broad Street-”Cholera A map of Broad Street-”Cholera Map”Map”Read Para 3 carefully.Step 2CarefulreadingWhat method did Snow use?1.Which houses had more than 4 deaths and which had no death in Broad Street

11、?2.What did Snow conclude?Multiple deaths happened here.No death happened here.He suspected that the water from the pump He suspected that the water from the pump was to blame.was to blame.Finding EvidenceRead para.23 again and complete the chart below.A:It was believed that cholera was caused by ba

12、d _ or germs in _.B:Snow _ the places where the people who _ had lived.C: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 _.D:The pump water carried _.E:The _ of the pump was removed.Ma

13、tch the following headers with the letters from the chart above.Write AE in the blanks.1.conclusion 2.evidence 3.process 4.solution 5.theories _ _ _ _ _airfood or watermarked ona mapdiedwater pumphadntdrinking water from the pumpcholera germshandleDCBEAconclusionevidenceprocesssolutiontheoriesP3 4Pa

14、ra 2-3 How?What caused the outbreak of cholera in London in 1854?The truth was that the water from the Broad Street pump had been infected by waste.Moreover,Snow was later able to show a link between other cases of cholera and the different water companies in London.Some companies sold water from th

15、e River Thames that was polluted by raw waste.The people who drank this water were much more likely to get cholera than those who drank pure or boiled water.reveal the truthPara.4Through Snows tireless efforts,water companies began to sell clean water and the threat of cholera around the world saw a

16、 substantial decrease.However,cholera is still a problem.Each year,millions of people around the world get cholera and many die from it.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

17、diseases.For this reason,Snow is considered the father of modern epidemiology.Para5 Contributions What contributions did John Snow make?lWater companies began to sell clean water.lThe threat of cholera around the world decreased.lHe helped people know how to prevent cholera.lSnow transformed the way

18、 scientists study diseases.What contributions did John Snow make?The Father of Modern EpidemiologyPara5 Contributions1.His professional knowledge.2.His strong determination.4.His scientific mindset.(questioning mind/creative mind)Why was it John Snow,not other doctors,who defeated King Cholera?3.Sci

19、entific methods:the use of map and statisticsReading for thinking discovered artemisnin to treat malaria,was awarded the Nobel Prizethe father of hybrid rice,rid the world of hungerDespite the danger of infection,devoted to the research of COVID19What qualities and scientific spirits do they have in

20、 common?the Father of Modern Epidemiology,defeated King Cholerastrong sense of social responsibilitystrong sense of social responsibilityface the challenge bravelyface the challenge bravelycommittedcommittedknowledgeableknowledgeablecreativecreativecritical thinkingcritical thinking课时跟踪检测课时跟踪检测P137：

21、课文语法填空：课文语法填空John Snow was 1._wellknown doctor in London in the 19th century.He wanted to find the cause of cholera in order to help people 2._(infect)with it.In 1854 when an outbreak of cholera hit London,he 3._(begin)to gather information 4._(immediate).He marked on a map 5._all the dead people ha

22、d lived and he found that many people who 6._(drink)the dirty water 7._the pump died.So he announced that the pump water 8._(carry)cholera germs.He suggested that the source of all water supplies 9._(examine)and new methods of 10._(deal)with polluted water be found.Finally,“King Cholera”was defeated.a infected began immediately where had drunkfromcarried(should)be examineddealingThankyou