必修五5-unit1-Great-Scientists-reading-精品课件-公开课课件

1、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 mo

2、ve 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 di

3、scovered 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 inven

4、ted the earliest instrument to tell people where earthquakes happened.,Zhang Heng,10. Who put forward a theory about black holes?,Pre-reading:,What do you know about infectious diseases?,infectious diseases can spread easily , They may do harm to people , AIDS and SARS are infectious diseases, they

5、are difficult to cure.,infectious diseases : They can be spread to other people. They have an unknown cause. They are difficult to cure. They need public health care to solve them.,Draw a conclusion Think of a method Collect results Make a question Find a problem Analyse results Find supporting evid

6、ence,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,Think of a method,Collect results,Make up a question,Find a problem,Analyse the result,Draw a conclusion,Find supporting evidence,John Snow defeats “King Cholera”,Reading,A brief introduction of cholera,Broad

7、 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. Skimming Whats the main idea of the passage? John Snow was a well-known doctor in London. T

8、he 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 understo

9、od.,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

10、,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

11、 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 q

12、uestion:(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 diseas