unit1-the-third-periodppt -新人教版必修5课件.ppt

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1、Unit 1 The third period Teaching methods situational teaching method;cooperative learning method;programmed teaching method;task-based and assessment teaching methods.Teaching aims and demands一、topic:how to organize scientific research;contributions of scientists二、vocabulary三、functions:talking about

2、 scientific job;describing people四、grammar:the past participle as the attribute and predicativeArrangement of teachingthe first period:warming upthe second period:language points of readingthe third period:readingthe fourth period:learning about language and language points of using languagethe fift

3、h period:using languagethe sixth period:grammarthe seventh period:exercises John Snow defeats“King cholera”Who is John Snow?a famous doctor in London.relationship attended her as her personal physician.Do you know what was this map used for in 1854?Finding out the cause of Cholera.v What happened in

4、 1854?v How many people died in 10 days?v Why is there no death at No.20 and 21 Broad Street as well as at No.8 and 9 Cambridge Street?Task 1:Skim and Scan1.What happened in 1854?2.How many people died in 10 days?Cholera outbreak hit London.5003.Why is there no death at No.20 and 21 Broad Street as

5、well as at No.8 and 9 Cambridge Street?These families had not drunk the water from the Broad Street pump.Task 2detailed readingRead and answer:Paragraph 1:1 Why couldnt the cholera be under control at first?Neither its cause,not its cure was understood.v True or false:1.John Snow was glad to help or

6、dinary people.2.John Snow thought cholera would never be controlled.TFParagraph 2v Whats the two theories?In your words.v Which one is more reasonable?John Snow finally proved the theory he believed by _.A.gathering information with the help of a map B.looking into the source of the water for Broad

7、Street and Cambridge Street C.separating those who suffered cholera from those who didnt D.both A and B E.both A and CParagraph 3&4Paragraph 3&4vWhats the result?He found the cause of cholera was the polluted water.Paragraph 5v When the cause was found,what did the people do?Remove the handle from t

8、he water pump so it could not be used.Paragraph 6v What s the extra evidence?Two other deaths in another part of London that were linked to the Broad Street outbreak.Paragraph 7v What are John Snows suggestions?The source of all water supplies should be examined.New methods of dealing with polluted

9、water should be found.The water companies were also instructed not to expose people to polluted water anymore.Whats the main idea of the passage?A.John Snow was a well-known doctor in London.B.The cause of Cholera was polluted water.C.The source of all drinking water should be examined.D.How did Joh

10、n Snow collect,analyze data and find the cause of the disease and solved it.Task 3Mind Map of the textJohn Snow Defeats“King Cholera”Paragraph 1:Introduction of John Snow and Cholera Paragraph 2:Two theory Find a Problem:What cause the cholera?Make up a question:Which is right?Paragraph 3-6:Study of

11、 the breakout in 1854 Paragraph 3:Study of the breakout in 1854 Think of a method:Test two theoryCollect the result:Mark the deathParagraph 4:Study of the breakout in 1854 Analyse the result:Reason for death and no deathParagraph 5:Study of the breakout in 1854 Paragraph 6:Study of the breakout in 1

12、854 Repeat if necessary:Find more evidence.Draw a conclusion:Cholera was spread by germ Polluted water carried choleraAnalyse the result:Find the resource of the water Paragraph 7:Prevention of Cholera John Snow defeat King CholeraWhat is the problem?The cholera was the most deadly disease of its da

13、y.Neither its cause,nor its cure was understood.What caused cholera?Retell the reading according the followingmake up a question:Which theory to believe in?Cholera multiplied in the air without reason.A cloud of dangerous gas would float around until it found its victims.People absorbed it with thei

14、r meals.A map of Broad StreetWhat method did he use?Broad StreetMany deaths happened here.No death happened here.The water from the pump was to blame.Public houseanalyze the results:What happened to the pump water?The water was from the river which had been polluted by the dirty water from London.Fi

15、nd supporting evidence:What extra evidence did he find?A woman and her daughter who lived far away but drank the water also died.draw a conclusion with certaintyThe polluted water carried the disease.Read the passage again and fill in the blanks:John Snow was a well-known _ in London in the _ centur

16、y.He wanted to find the _ of cholera in order to _ it.In 1854 when a cholera _ out,he began to gather information.He _ on a map where all the dead people had lived and he found that many people who had drunk the dirty water from the _ died.So he decided that the polluted water carried cholera.He suggested that the _ of all water supply be _ and new methods of _ with polluted water be found.Finally,“King Cholera”was defeated.doctor19thcausedefeatbrokemarkedpumpsourceexamined dealing(in 5 minutes)HomeworkvMaster new words&expressionsvPrepare for the using languagevLearning about the language

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