Unit 1 Reading and Thinking （ppt课件）(9)-2022新人教版（2019）《高中英语》选择性必修第二册.pptx

1、 Reading and Thinking:Reading and Thinking:Understand the questioning mindUnderstand the questioning mindrun nucleic acid tests（核酸检测）get vaccinated（接种疫苗）Are you familiar with these situations?We are taking measures to fight against coronavirus!Besides coronavirus,what other kinds of epidemics （流行病）h

2、ave you heard of?bird-flu（禽流感）malaria（疟疾）plague（鼠疫）Ebola(埃博拉)Who Helped Defeat Malaria?Draw a conclusion Collect data Ask a question Find a problem Analyse the results Find supporting evidence Think of a method Tu Youyou followed the scientific stages to find out the cure for malaria.Can you put the

3、m in the right order?MALARIAWho Defeated Cholera?Did he/she followed the same stages as Tu Youyou?Activity 1:Predicting:What will be talked about?John Snow Defeats“King Cholera”Who?How?What?Activity 2:Read for the Structure_.Activity 3:Read for informationPara 1 Who&What?John SnowCholeraa _ doctorbe

4、came _ never _ _ once and for allBritish,young and famous_ Queen Victoriaattended tofrustrated lost his desire to destroy choleraone of _ deseasescauses severe _ _millions of people _the disease in the early 19th centurythe most feared diarrhoea,dehydration and even deathdied fromActivity 3:Read for

5、 informationPara 2-3 How?Para 2:1.What problem did the two theories try to solve?2.What were the two theories and which did John Snow agree with?3.How did he prove it?1.What problem did the two theories try to solve?problem2.What were the two theories and which did John Snow agree with?Theory one:ca

6、used by _Theory two:caused by _bad air germs 3.How did he prove it?questionPara 3What method did he use?How did he finally find out why?marking on a mapAnalyze the map with your group member first and try to ask questions between group members.u Which houses had more than 4 deaths in Broad Street?u

7、Which houses had no death in Broad Street?What result did he get?Any other evidence?What result did he get?Snow suspected that the water pump was to blame.A woman and her daughter died in another part of London after drinking water from the pump.John Snow was able to announce that the pump water car

8、ried cholera germs.John Snow had the handle of the pump removed.The disease was stopped.Activity 4:Read Para 2-3 again for scientific stagesFind a problemAsk a questionThink of a method Collect data Analyse the results Find supporting evidence Draw a conclusion Find a solution Activity 5:Read for in

9、formationWater companies sold water from the River Thames that was polluted by raw waste,causing people who drank this water to get cholera.l Water companies began to sell clean water.l The threat of cholera around the world decreased.l He helped people know how to prevent cholera.l Snow transformed

10、 the way scientists study diseases.2.What contributions did John Snow make?1.What caused the outbreak of cholera in London in 1854?TruthPara 4-5Was cholera defeated completely?To prevent cholera from spreading,wed betterdrink pure or boiled water and eat clean food.Activity 5:Read for thinking1.His

11、professional knowledge.2.His strong determination.4.His scientific mind-set.(questioning mind/creative mind)Why was it John Snow,not other doctors,who defeated King Cholera?3.Scientific methods:the use of map and statisticsAssignmentuThe boys living in Room 3021 in my class got Scabies(疥疮）,an infectious disease.Faced with case,what will you do to solve it?(adopt a serious scientific approach)The problem:How:Your stage Your challenge.