Unit 1 Reading and Thinking 课件ppt-（2023新教材）高中英语人教版（2019）选择性必修第二册(3).pptx

1、选择性必修二 Unit 1 Science and ScientistPre-reading PredictionJohn Snow Defeats“King Cholera”1.Who was John Snow?2.What is Cholera?3.Why was it called King cholera?3.How did John Snow defeat King Cholera?While-reading Activity 1:Read for main ideaPara.1Para.2Para.3Para.4 Para.5Brief introduction to _ and

2、 _ John Snow decided to prove _.The _ of the infection of cholera John Snow began his study by_.John Snows _ John Snow cholera the second theory marking on the map truth contributions John SnowcholeraWho?A _ doctor who even attend _ when she gave birth.What?He had a desire to _ once and for all.famo

3、usdestroy choleraWhat?It is one of _ because it causes_.When?_.Where?_.What consequence?_.the most feared diseases in the world(once)severe diarrhoea,dehydration,and even deathIn the early 19th centuryEuropeMillions of people died from the diseaseQueen Victoria_ medical skills _ consequences outstan

4、ding/remarkbaledisastrous“King Cholera”=_ cholera deadlyWhile-reading Activity 2:Read for details(Para.1)While-reading Activity 3:Discuss&Locate key information (Para.2-3)Discuss the following stages of scientific reasearch in groups.Discuss the following stages of scientific reasearch in groups.Wha

5、t orderWhat order would you put them in?would you put them in?_ analyse the results _ ask a question _ draw a conclusion _ collect data_ find a problem _ find supporting evidence_ think of a methodHowScan para.2 and 3:to locate the 7 stages of scientific research in the paragraph to check the order

6、you put them in.While-reading Activity 3:Locate key information(7 stages)2.What can you see from the map?While-reading Activity 4:Read the cholera map1.In the fight against cholera,what played a key role?A.John Snows expertise B.His map C.Broad Street“”means _“PH”means _“30,31,”mean _Which house num

7、bers had more than four deaths in Broad Street?Where is the pump?Which house numbers near the pump had no deaths in Broad Street and Cambridge Street?deathspublic househouse numberAn insight into John Snows scientific spirit in purpsuit of truthairfood or watermarked on a mapdiedwater pumphadntdrink

8、ing water from the pumpcholera germshandle_ scientific approach（方法）（方法）seriousSnow questioned the two contradictory theories by making an immediate _(investigate)marking on an _(epidemiology)map analysing the l_ between deaths and drinking water announcing the result with p_ evidenceinvestigationepi

9、demiologicallinkpersuasive1.How did John Snow further confirm that cholera was spread by germs?2.Whats the truth?3.How were people infected with the virus of cholera?Moreover,Snow was later able to show a link between other cases of cholera and the different water companies in London.The truth was t

10、hat the water from the Broad Street pump had been infected by waste.Some companies sold water from the 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.While-reading Activity 5:Read for details(

11、Para.4)While-reading Activity 6:Read for details(Para.5)The result:Through John Snows tireless _,water companies began to sell _ and the threat of cholera around the world saw a substantial _._,cholera is still a problem.Each year,_ of people around the world get cholera and may _ it.Snows contribut

12、ion:Fortunately,we now know how to cholera，_ the work of John Snow.,in his use of maps and statistics,Snow _ the way scientists study diseases.effortsclean waterdecreaseHowevermillionsdie frompreventthanks toMoreovertransformedPost-reading 1:Think deeplyWhy was it John Snow,not other doctors,who def

13、eated King Cholera?(answer with evidence from the text)brave/courageouscaring,socially responsibleexpert/professionalquestioning mind/critical thinkingdeterminedrigorous（严谨的）creative/innovativedevoted/persistentPost-reading 1:Think deeplyWhy was it John Snow,not other doctors,who defeated King Chole

14、ra?courageouscaringdevoted persistentinnovativedeterminedcurious to explorecritical thinking/questioning mindrigorous scientific spirit statistical abilitydetail-orientedthe father of epidemiologyIt is no wonder that Snow is considered _ Nowadays,how has John Snows work inspired us and affected our

15、world?scientific spirit scientific approachscientific successcholeraPost-reading 2:What should we do to prevent cholera?drink clean and boiled waterkeep your hands cleankeep the food away from flieswash,peel and cook foodMake a speechA memorial ceremony（纪念仪式）（纪念仪式）for John Snow is to be held this Su

16、nday,which celebrates the 209th birthday of the great scientist.You are the representative who is going to introduce him at the ceremony.1.Who was John Snow?2.What is Cholera?3.Why was it called King cholera?4.How did John Snow defeat King Cholera?5.What qualities of John Snow do you admire?6.To inf

17、orm people present of the ways to prevent cheloraHomework1.Decide on one scientist that you admire most2.Find out one of his most important achievements3.According to seven steps of scientific research,work in groups to make a presentation about how the scientist carried out his or her research.Thank you!