必修五5_unit1_Great_Scientists_reading课件课件

Great scientistsWarming 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?ArchimedesItsGive 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 Darwin3.Who invented the first steam engine?James Watt4.Who used peas to show how physical characteristics are passed from parents to their children?Gregor Mendelradium5.Who discovered radium?Marie CurieThomas EdisonHe 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 vinci8.Who invented a lamp to keep miners safe underground?Sir Humphry Davy9.He invented the earliest instrument to tell people where earthquakes happened.Zhang Heng10.Who put forward a theory about black holes?Pre-reading:Draw a conclusionDraw a conclusionThink of a methodThink of a methodCollect resultsCollect resultsMake a questionMake a questionFind a problemFind a problemAnalyseAnalyse results resultsFind supporting evidenceFind supporting evidencePut the phrases on page 1 in correct order.John Snow defeats“King Cholera”A brief introduction of choleraBroad 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?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 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.make 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 their 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.find 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.1.Draw a conclusion:(得出结论得出结论)2.Think of a method:(找出研究方法找出研究方法)3.Collect results:(收集材料收集材料)4.Make a question:(形成研究主题形成研究主题)5.Find a problem:(发现问题发现问题)6.Analyse results:(分析材料分析材料)7.Find supporting evidence(找到能确证的证据找到能确证的证据)5423671Stages in examining a new scientific idea: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 overnightCook raw food thoroughlyWash hands oftenKeep away from flieschoose fresh sea foodKeep the kitchen cleanDispose rubbish properly.Drink boiled water