高中英语必修5Unit-1Great-scientists公开课优质课件.ppt

1、Unit 1 Great scientists1.Who wrote a book explaining how animals and plants developed as the environment changed?Charles DarwinDo this quiz2.Who discovered radium?3.Who invented the way of giving electricity to everybody in large cities?Madam CurieThomas Edison4.Who put forward a theory about black

2、holes?Stephen Hawkingmatch themPara 1Para 2Para 3Para 4Para 5Para 6Para 7 7 stepsDraw a conclusion Think of a method Collect results Make a questionFind a problem Analyse the results Find supporting evidenceFast-readingWhat is the main idea of the passage?A.John Snow was a well-known doctor in Londo

3、n.B.The case of cholera was polluted water.C.The source of all drinking water should be examined.D.How John Snow collected,analysed data and found the cause of the disease and solved it.the content of the textPara 1Para 2Para 3Para 4Para 5Para 6Para 7 7 stepsDraw a conclusion Think of a method Colle

4、ct results Make a questionFind a problem Analyse the results Find supporting evidenceCareful ReadingPara.1 Find a problem.John Snow was an doctor in London who Queen Victoria as her personal .He thought about helping ordinary people to cholera.Though the cause and the of it were unknown,he wanted to

5、 face the and solve the problem.expertattendedphysicianexposedcurechallengeReading carefullyWhat caused cholera?What is the problem?Para.2 Make a question:which theory is correct?Reading carefullyTwo theories(ideas):1.Cholera multiplied in the air.2.People absorbed it into their bodies with their me

6、als.Para.3 Think of a method Reading carefully1.What happened in 1854?2.How many people died in 10 days?3.What did John Snow do at that time?Cholera outbreak hit London.More than 500He suspected the second theory was right and began his enquiryA map of Broad StreetWhat method did he use?Broad Street

7、Many deaths happened here.No death happened here.Public housePara.4 Collect results Reading carefullyThese families had not drunk the water from the Broad Street pump.It seemed that the water was to blame for cholera.？Which house has the largest number of deaths in this map?A.No.12 B.No.2 C.No.38 D.

8、No.29 Para.5 Analyse the results Reading carefully1.What happened to the pump water?2.what did the people do？The water was from the river polluted by the dirty water from London.Remove the handle from the water pump so that it could not be used.Para.6 Find supporting evidenceReading carefullyWhat s

9、the extra evidence?A woman and her daughter who lived far away but drank the water also died.Para.7 draw a conclusion Reading carefully To prevent cholera from spreading again,what did John Snow do?Suggested that the source of all water supplies be examined.Instructed the water companies not to expo

10、se people to the polluted water any more.The polluted water caused cholera.Draw a conclusionFind a problemMake a questionThink of a methodCollect resultsAnalyse the resultsPara 1Para 2Para 3Para 4Para 5Para 6Find supporting evidencePara 7Review 7 steps that John Snow tookSummaryJohn Snowa doctor，_ Q

11、ueen Victory as her personal _.But he was willing to help ordinary people _ cholera.Many people died _ there was an _.He wanted to face the _ and solve the problem.Two theories caught her attention.The first suggested that cholera multiplied in the air.The second suggested that people _ this disease

12、 into their bodies and the disease _ the body.John Snow _ the second was right but heattendedphysicianexposed toevery timeoutbreakchallengeabsorbedattackedsuspectedneeded evidence.When another outbreak hit London in 1854，he was ready to begin his._ and tried to get information.He found that most of

13、the deaths were near a water _ and the spread of the disease was _ water.With the evidence，he was able to _ that polluted water carried the virus.After that，he suggested the source of all the water supplies _.Finally“King Cholera”was _.enquirylinked toannouncebe examineddefeated pumpWrite a report:1.The question is whether too much homework is good for us or not.2.Use the steps to get your conclusion.Homework: