必修五5_unit1_Great_Scientists_reading_精品课件_公开课课件.ppt

Great scientists,Unit 1,Warming up,What do you know about great scientists?Try this quiz and find out who knows the most?,Are you ready?Lets go!,1.Which scientist discovered that objects in water are lifted up by a force that helps them float?,Archimedes,Its,Give me a place to stand and I will move the world!,2.Who wrote a book explaining how animals and plants developed as the environment changed?,Charles Darwin,3.Who invented the first steam engine?,James Watt,4.Who used peas to show how physical characteristics are passed from parents to their children?,Gregor Mendel,radium,5.Who discovered radium?,Marie Curie,Thomas Edison,He invented the way of giving electricity to everybody in large cities.,7.Who was the painter that studied dead bodies to improve his painting of people?,Leonardo da vinci,8.Who invented a lamp to keep miners safe underground?,Sir Humphry Davy,9.He invented the earliest instrument to tell people where earthquakes happened.,Zhang Heng,10.Who put forward a theory about black holes?,Pre-reading:,Draw a conclusionThink of a method Collect results Make a questionFind a problemAnalyse resultsFind supporting evidence,Put the phrases on page 1 in correct order.,得出结论,找到方法,收集材料,提出问题（形成主题）,发现问题,分析材料,找到确实证据,John Snow defeats“King Cholera”,Reading,A brief introduction of cholera,Broad Street,It begins in the stomach and a severe case can lead to death without immediate treatment.,5oo deaths in 10 days in 1854 in London.,Spread from one person to another.So it is an infectious Disease.,1.SkimmingWhats the main idea of the passage?John Snow was a well-known doctor in London.The cause of Cholera was polluted water.The source of all drinking water should be examined.How John Snow collected,analysed data and found the cause of the disease and solved it.,What is the problem?,The cholera was the most deadly disease of its day.Neither its cause,nor its cure was understood.,Paragraph 1,make a question:Which theory to believe in?,idea 1,idea 2,Cholera multiplied in the air without reason.A cloud of dangerous gas would float around until it found its victims.,People absorbed it with their meals.,Paragraph 2,A map of Broad Street,What method did he use?,Broad Street,Many deaths happened here.,No death happened here.,The water from the pump was to blame.,Public house,Paragraphs 3+4,analyze the results:What happened to the pump water?,The water was from the river which had been polluted by the dirty water from London.,Paragraph 5,find supporting evidence:What extra evidence did he find?,two other deaths,A woman and her daughter who lived far away but drank the water also died.,draw a conclusion with certainty,The polluted water carried the disease.,Paragraphs 6+7,1.Draw a conclusion:(得出结论)2.Think of a method:(找出研究方法)3.Collect results:(收集材料)4.Make a question:(形成研究主题)5.Find a problem:(发现问题)6.Analyse results:(分析材料)7.Find supporting evidence(找到能确证的证据),5,4,2,3,6,7,1,Stages in examining a new scientific idea:,draw a conclusion,find a problem,make a question,think of a method,collect results,analyse the results,find supporting evidence,Para 1,Para 2,Para 3,Para 4,Para 5,Para 6,Para 7,What should we pay attention to in our daily life in order not to get infected with all these infectious diseases?,Heal the food left overnight,Cook raw food thoroughly,Wash hands often,Keep away from flies,choose fresh sea food,Keep the kitchen clean,Dispose rubbish properly.,Drink boiled water,Discussion,