B5U1 John Snow defeats king cholera 分享资料

1、Book 5 Unit 1 Great Scientists Period 1 Reading-2-Learning aims1. To help students to talk about science and contributions of scientists.2. To help students to have a better understanding of the reading passage and learn to use some key words and expressions.3. To help students to learn to organize

2、a scientific research and appreciate great peoples characteristics and qualities.-3-Scientists-4-Alexander Bell electricity Thomas Edison the first telephoneWright Brothers the electric lampMadame Curie black holes in universeFranklin theory of gravitySteven Hawking the first PlaneElbert Einstein ra

3、diumIsaac Newton the theory of relativityLead-in Scientists & Contributions-5-Draw a conclusion Think of a method Collect results Make a questionFind a problem Analyse the results Find supporting evidenceStages in setting out （制定）（制定）a new scientific idea:Pre-reading-6-Pre-reading-7-Pre-readingT

4、ell the features of 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.-8-9-10-11-Skimming Who was the great scientist in the passage and what was the deadly disease of its day?2.What happened in

5、 1854?3.What can prove that cholera was severe?John Snow; Cholera Another outbreak of cholera hit London.That more than 500 people died in ten days.-12-13-Careful ReadingJohn Snow was an doctor in London who Queen Victoria as her personal . He thought about helping ordinary people to cholera. Though

6、 the cause and the of it were unknown, he wanted to face the and solve the problem. expertattendedphysicianexposedcurechallenge-14-Careful Reading(1)What were the two theories about the cause of cholera? (2)Which did John Snow want to prove?(3)What was his method of doing the research?The first sugg

7、ested that cholera multiplied(繁殖）繁殖）in the air.The second suggested that people absorbed this disease into their bodies with their meals.The second one.Gathering information in two particular streets.-15-Careful Reading(1)Fill in the blank with a proper word or proper words. First he marked on a map

8、 the exact places ( )all the dead people had lived.(2) Replace the sentence with one that has the same meaning from the text. It seemed that the water should be blamed.where in which It seemed that the water was to blame.-16-Careful Reading(1)Why did he tell people to remove the handle from the pump

9、?(2)What happened after the handle was removed?So that it could not be used.The disease slowed down.（慢下来慢下来）-17-Careful Reading(1)Where did the woman live and what did she had delivered to her house every day?(2)What did their deaths suggest?(3)What measures did John Snow take to prevent the disease

10、 from spreading?Away from Broad Street; Water from the pump（水泵）（水泵）.The polluted water carried the virus.He suggested that the source of all the water supplies be examined. The water companies were instructed not to expose people to polluted water any more.-18-The problemThe causeIdea 1:Idea 2:The m

11、ethodA Scientific Report by John SnowNobody knew the cause of the serious disease of choleraCholera multiplied(繁殖）繁殖）in the air.People absorbed the disease with mealsCollect information from the cholera outbreak(爆发）爆发） to prove which theory was correct. Summary-19-The resultsIdea 1 or 2? Why?The con

12、clusionHe found the cause （起因）（起因）of cholera was the polluted water.Idea 2. Because the information showed that the dirty water carried cholera.He defeated cholera by examining the water supply and dealing with the polluted water .-20-Fill in the blanksJohn Snow was a well-known _ in London in the 1

13、9th century. He wanted to find the _ of cholera in order to help people _ to cholera. In 1854 when a cholera _ out, he began to gather information. He _ on a map where all the dead people had lived and found that many people who had drunk the dirty water from the _ died. So he decided that the polluted water carried cholera. He suggested that the _ of all the water supplies be _ and new methods o