必修五5unit1greatscientists-reading-精品课件-公开课课件.pptx

1、必修五5unit1greatscientists-reading-精品课件-公开课课件Great scientistsWarming upWarming up1.Which scientist discovered that objects in water are lifted up by a force that helps them float?2.Who wrote a book explaining how animals and plants developed as the environment changed?3.Who invented the first steam en

2、gine?James Watt5.Who discovered radium?Marie Curie7.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.Zh

3、ang Heng10.Who put forward a theory about black holes?Stephen HawkingPut the phrases on page 1 in correct order.Make 7.Draw a conclusionStages in examining a new scientific idea:John Snow defeats“King Cholera”It begins in the stomach and a severe case can lead to death without immediate treatment.Th

4、e victims died very quickly from a loss of liquid after severe vomiting(呕吐呕吐)and diarrhea(腹泻腹泻).Spread from one person to another.So it is an infectious Disease.Do you know about cholera?SkimmingWhats the main idea of the passage?A.John Snow was a well-known doctor in London.B.The cause of Cholera w

5、as 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.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 it

6、s cure was understood.What is the question?Which theory to believe in.Two theories1.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?1.When another outbreak hit London in 1854,

7、he was ready to begin his enquiry.2.As the disease spread quickly through poor neighbourhoods,he began to gather information.What are the results?1.Many of the deaths were near the water pump in Broad Street.2.Some houses had no deaths.3.The water was to blame.What happened to the pump water?The wat

8、er was from the river polluted by the dirty water from London.What evidence?A woman and her daughter who lived far away died of cholera after drinking the water.What conclusion?The polluted water carried the disease.What did John Snow do to prevent this disease from happening again?Cholera was a 19t

9、h century disease.What disease do you think is similar to cholera today?Why?Keep the kitchen clean.Only eat food thats been thoroughly cooked.How to protect yourself from infectious diseases?Drink boiled water.Wash hands frequently.Keep away from flies.Choose fresh food.Dispose rubbish properly.四、课文

10、回顾四、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 thousands of people 3_(expose)to it died every time there

11、 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 _ da

12、ughter 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.F

13、inally，“King Cholera”was defeated.With to blame be examined with Homework Write a short summary of the reading passage.Use the details from Exercise1 above to help you,as well as the stages for scientific research in Pre-reading.五、语段改错五、语段改错 John Snow is a famous doctor in Londonso expert,indeed,tha

14、t he attended Queen Victoria for her personal physician.But he becameinspiring when he thought about help ordinarypeople exposed to cholera.This was the deadly disease of their day.wasasinspiredhelpingitsNeither its cause or its cure was understood.Somany thousand of terrified people died everytime there was the outbreak.John Snow wantedto face the challenge and to solve this problem.He knew that cholera would never be controlleduntil its cause found.was northousandsanJohn SnowWho helped to defeat the disease?Whats the name of the disease?Cholera