必修五5unit1GreatScientists-reading 课件-公开课课件

1、I Promise!,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

2、 to show how physical characteristics are passed from parents to their children?,Gregor Mendel,radium,5. Who discovered radium?,Marie Curie,Thomas Edison,6. Who 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.

3、 Who put forward a theory about black holes?,Stephen Hawking,Pre-reading:,Pre-reading,Draw a conclusion: (得出结论) Think of a method: (找出研究方法) Collect results: (收集材料) Make a question: (形成研究主题) Find a problem: (发现问题) Analyse results: (分析材料) Find supporting evidence: (找到能确证的证据),Put the phrases on page 1 in correct order.,1.Find a problem:(发现问题) 2.Make a question:(形成研究主题) 3.Think of a method:(找出研究方法) 4.Collect results:(收集材料) 5.Analyse results:(分析材料) 6. Find supporting evidence(找到能确证的证据) 7.Draw a concl

4、usion:(得出结论),Stages in examining a new scientific idea:,It begins in the stomach and a severe case can lead to death without immediate treatment. The victims died very quickly from a loss of liquid after severe vomiting(呕吐) and diarrhoea(腹泻). Spread from one person to another. So it is an infectious Disease.,Do you know about cholera?,John Snow defeats “King Cholera”,Reading,John Snow,Who helped to defeat the disease?,Whats the name of the disease?,Cholera,Skimming Whats the main idea of the pas

5、sage? 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 .,Read each paragraph and find out the answer.,What is the problem?,The cholera was the most deadly disease of its day. Neither its cause, nor its cure was understood.,Paragraph 1,Find a problem,What is the question?,Which theory to believe in.,Paragraph 2,Make a que

6、stion,Two theories,1. Cholera multiplied in the air without reason. A cloud of dangerous gas would float around until it found its victims.,2. People absorbed it with their meals.,What is the method?,When another outbreak hit London in 1854, he was ready to begin his enquiry. 2. As the disease spread quickly through poor neighbourhoods, he began to gather information.,Paragraph 3,Think of a method,What are the results?,Many of the deaths were near the water pump in Broad Street. 2. Some houses h

7、ad no deaths. 3. The water was to blame.,Paragraph 4,Collect results,What happened to the pump water?,The water was from the river polluted by the dirty water from London.,Paragraph 5,Analyse results,What evidence?,A woman and her daughter who lived far away died of cholera after drinking the water.,Paragraph 6-7,Find supporting evidence Draw a conclusion,What conclusion?,The polluted water carried the disease.,Discussion,How to avoid cholera?,What should we pay attention to in our daily life in

8、 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,四、课文回顾 John Snow was a well-known physician in London in the 19th century. 1_ famous was he that he even attended Queen Victoria to ease the 2_ (bear) of her babies. However, he decided to defeat cholera, a deadly disease at that time when he saw thousand

9、s of people 3_ (expose) to it died every time there was an outbreak.,So,birth,exposed,In 1854 when cholera broke out，he began to gather information and marked on a map 4 _ all the dead people had lived. He found many people who had drunk 5_ dirty water from the pump died. So he decided that the polluted water carried cholera. He found a woman and 6 _ daughter who had the water delivered from the pump every day died of cholera after drinking the water.,where,the,her,7_ this extra evidence John Snow announced that the polluted water was 8 _ (blame). He suggested the source of all water supplies 9_ (examine) and new methods of dealing 10_ water be found. Finally，“King Cholera” was defeated.,With,to blame,be examined,with,五、语段改错,John Snow is a famous doctor in Londonso expert, indeed, that he attended Queen Victoria for her personal physician. But he became inspiring when he thought about help ordinary people exposed to cholera. This was the

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