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1、,Unit 1 Great Scientists,Who is he?,A great scientist,Father of Hybrid Rice,The man who puts an end to hunger,He is,Yuanlongping,My secret of success is knowledge,swink,inspiration and opportunity.,我成功的秘诀：知识、汗水、灵感、机遇。”,Who is he?,He is called the greatest scientist in the 20th century.,He is famous
2、for the Theory of Relativity.,He is,Albert Einstein,Imagination is more important than knowledge,想象力比知识更重要.,There are some great scientific achievements that have changed the world.Can you name some of them?What kind of role do they play in the field of science?Do these achievements have anything in
3、 common?Match the inventions with their inventors below before you answer all these questions.,Warming Up:,Alexander Bell electricity Thomas Edison the First telephoneLaite Brothers the electric LampMadame Curie black holes in UniverseFranklin Theory of GravitySteven Hawking the First PlaneElbert Ei
4、nstein RadiumIsaac Newton the Theory of Relativity,Quiz Questions(P1),阿基米德(Archimedes),Charles Darwin,Thomas Newcomen,Gregor Mendel,Marie Curie,Thomas Edison,Leonardo da Vinci,Humphry Davy,张衡,Stephen Hawking,match them,7 stepsDraw a conclusion Think of a method Collect results Make a questionFind a
5、problem Analyse the results Find supporting evidence,Fast-reading,What is the main idea of the passage?A.John Snow was a well-known doctor in London.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 ca
6、use of the disease and solved it.,the content of the text,Para.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 face the and solve the problem.,expert,at
7、tended,physician,exposed,cure,challenge,Reading carefully,What caused cholera?,What is the problem?,Para.2 Make a question:,Reading carefully,Two theories(ideas):,1.Cholera multiplied in the air.,2.People absorbed it into their bodies with their meals.,Para.3 Think of a method,Reading carefully,1.Wh
8、at 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 500,He suspected the second theory was right and began his enquiry,A map of Broad Street,What method did he use?,Broad Street,Many deaths happened here.,No death happene
9、d here.,Para.4 Collect results,Reading carefully,These 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.No.29,Para.5 Analyse the results,Reading carefull
10、y,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 evidence,Reading carefully,What s the extra evidence?,A woman and her daughter
11、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 expose people to the polluted water any more.,
12、The polluted water caused cholera.,Draw a conclusion,Find a problem,Make a question,Think of a method,Collect results,Analyse the results,Para 1,Para 2,Para 3,Para 4,Para 5,Para 6,Find supporting evidence,Para 7,Review 7 steps that John Snow took,John Snow Defeats“King Cholera”,What causes cholera?,
13、Which theory is correct?,using a map,Mark the deaths on the map,1,2,3,4,find out the reasons for deaths,Find other evidence to make sure the conclusion,Polluted water carried the disease,5,6,6,SummaryJohn Snowa doctor，_ Queen Victory as her personal _.But he was willing to help ordinary people _ cho
14、lera.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 into their bodies and the disease _ the body.John Snow _ the second was right
15、but he,attended,physician,exposed to,every time,outbreak,challenge,absorbed,attacked,suspected,needed evidence.When another outbreak hit London in 1854，he was ready to begin his._ and tried to get information.He found that most of 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 _.,enquiry,linked to,announce,be examined,defeated,pump,
