Unit 1 Reading and Thinking （ppt课件）(8)-2022新人教版（2019）《高中英语》选择性必修第二册.pptx

1、Reading and Thinking新人教版选修二新人教版选修二 Unit 1Unit 11.To know about John Snow and cholera.2.To summarize the main idea.3.To find out the stages of scientific research in this passageTeaching objectives：Many years ago,a terrible disease named cholera in the world killed millions of people.People were very

2、 afraid of it,but they didn t know what to do.Luckily,a young doctor decided to find out how to prevent and treat the disease.Finally,the doctor won the battle.John Snow Read the title and predict.John Snow Defeats“King Cholera”Who?How?What?Para1 Para 2 Para 4Para 5 John Snow desired to destroy chol

3、era.John Snow decided to prove the second theory.Snow began his study by marking on the mapand the process.Truth of the infection of choleraSnows contributionsPara 3 Read the passage quickly and get the main idea of each paragraph.Skimming:main idea of each paragraphPara1 Para 2 Para 4Para 5 Para 3

4、Task1.Read the 1st paragraph quickly and fill in the mind map.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 diseaseJohn SnowWh

5、o?A doctor who even attend to when she gave birth.What?He had a desire to _ once and for all.BritishQueen Victoriadestroy choleraA.It was believed that cholera was caused by _ or germs in _.D.The pump water carried _.C.Many deaths occurred near the _ in Broad Street.Some people _ drunk the water fro

6、m the pump,and lived.A woman and her daughter died in another part of London after_.B.Snow _ the places where people _.E.The _ of the pump was removed.bad airfood or watermarked on the mapdied had livedwater pumphad notdrinking water from the pumpcholera germshandleTask2.Read Para.2 and 3 carefully

7、and finish activity 3 on Page3.Task3.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.Why was John Snow considered the father of modern epidemiology?4.How can we prevent cholera?1.What caused the out

8、break 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 infected by waste.Some companies sold water from the River Thames that was polluted by raw waste.Task3.Read Para.4 and

9、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 the world saw a substantial decrease.However,cholera is still a problem.Each year,millions of people around

10、the world get cholera and many die from it.Task3.Read Para.4 and 5 carefully to answer the four questions.3.Why was John Snow considered the father of modern epidemiology?1.He helped people know how to prevent cholera.2.He transformed the way scientists study diseases in use of map and statistics.Pa

11、ra.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.n.统计数字Task3.Read Para.4 and 5 carefully to answer the four questions.4.How can we prevent cholera?By drinking pure or boil

12、ed water.Para.4:The truth was that 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Task3.Read Para.4 and 5 carefully to answer the four questions.In our daily life,in o

13、rder not to get infected with the infectious disease,such as cholera,AIDS,SARS,what should we do？Wash hands oftenchoose fresh sea foodKeep the kitchen cleandeal with rubbish properly.Drink boiled waterDont forget to wear a mask when you go out.Discussion:Critical ThinkingRetell the story In the earl

14、y 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 to announce that the pump water

15、_(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 consideredHomework:1.Read the passage and review the words and expressions in it.2.Retell how John Snow defeated cholera.Thanks