b5u1 Reading great scientists 公开课优质课堂

1、1,Unit 1,Great scientists,2,1. Who discovered that objects in water are lifted,up by a force that helps them float,Archimedes,3,2. Who wrote a book explaining how animals and,plants developed as the environment changed,Charles Darwin,4,3. Who invented the first steam engine,James Watt,5,radium,4. Wh

2、o discovered radium,Marie Curie,6,Thomas Edison,5. Who invented the way of giving electricity to,everybody in large cities,7,6. Who was the painter that studied dead bodies to,improve his painting of people,Leonardo da vinci,8,7. Who invented the earliest instrument to tell,people where earthquakes

3、happened,Zhang Heng,9,8. Who,put forward,a theory about,black holes,Stephen Hawking,10,John Snow defeats “King Cholera,Whats the passage about,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

4、 collected, analyzed data and,found the cause of the disease and solved it,Prediction,11,Para.1,John Snow was a famous doctor in London-so,expert, indeed, that he attended Queen Victoria,as her personal physician. But he became,inspired when he thought about helping ordinary,people exposed to choler

5、a. This was the deadly,disease of its day. Neither its cause nor its cure,was understood. So many thousands of terrified,people died every time there was an outbreak,John Snow wanted to face the challenge and,solve this problem. He knew that cholera would,never be controlled until its cause was foun

6、d,this problem,This,12,What might cause cholera,Para.2,1. Cholera,multiplied,in the air,2,People,absorbed,this disease into their bodies,with their meals,13,gathered information and marked them a map,How did John Snow prove his idea,The water from the pump may cause it,Para.3-4,Many,deaths,No,death,

7、pub,14,The water was from the river,polluted,by the,dirty water from London,Whats wrong with the pump water,Para.5,Removed the handle,The disease slowed down,Cholera was spread by,germs and not in cloud of gas,15,What was the supporting evidence,A woman and her daughter who lived far away but,drank

8、the water from the pump also died of cholera,Para.6,The polluted water carried the virus,The source of all the water supplies be examined,Not to expose people to polluted water any more,Para.7,John Snow carried out his research by _,A. Making experiments,B. Making comparison,C. Making fact inference

9、,事实推理,D. Making hypothesis,条件假设,16,John snow-a doctor,Queen Victoria as her,personal physician. But he was willing to help ordinary,people,cholera. Many people died every time,there was an,He wanted to face the,and,solve the problem. Two theories caught his attention,The first suggested that cholera

10、 multiplied in the air,The second suggested that people,this disease,into their bodies and the disease attacked the body. John,Snow,the second was right but he needed,evidence. When another outbreak hit London in 1854,he was ready to begin his,and tried to get,information. He found that most of the

11、deaths were near,a water pump and the spread of the disease was,8,water. With the evidence, he was able to,that,polluted water carried the virus. After that, he suggested,the source of all the water supplies be examined. Finally,King Cholera” was,attended,exposed to,outbreak,challenge,absorbed,suspe

12、cted,enquiry,linked to,announce,defeated,17,find a problem,make up a question,analyze the results,collect results,draw a conclusion,find supporting evidence,think of a method,find a problem,make a question,think of a method,collect results,analyze the results,find supporting evidence,draw a conclusi

13、on,Stages to prove a new idea in scientific research,Edison invented electric bulb,oil lamp, dim, fire disaster,safe, bright, electric bulb,make filament experiments,with different filaments,灯,丝,1600 kinds, failed,tungsten,钨丝, burn for a,long time, used until now,brighten, changes, benefit,18,19,20,

14、21,22,23,24,25,26,1. What was the problem of that time,3. How did he practice his idea,4. Analyze the results, make breakthrough,Edison invented electric bulb,2. What an idea did he make up,oil lamp,油灯, dim,暗的, dirty, cause fire disaster,bright, safe, convenient, electric bulb,make experiments, with

15、 different filament,灯丝,as many as 1600 kinds, failed,tungsten,钨丝, burn for a long time, until now,5. Make a conclusion,great invention, brighten life, great changes, benefit,27,find a problem,make up a question,analyze the results,collect results,draw a conclusion,find supporting evidence,think of a

16、 method,find a problem,make a question,think of a method,collect results,analyze the results,find supporting evidence,draw a conclusion,Stages to prove a new idea in scientific research,28,find a problem,make up a question,analyze the results,collect results,draw a conclusion,find supporting evidenc

17、e,think of a method,find a problem,make a question,think of a method,collect results,analyze the results,find supporting evidence,draw a conclusion,Stages to prove a new idea in scientific research,Edison invented electric bulb,oil lamp, dim, fire disaster,safe, bright, electric bulb,make experiment

18、s,with different filaments,1600 kinds, failed,tungsten,钨丝, burn for a,long time, used until now,brighten, changes, benefit,29,What was the problem,Analyze the methods,Draw a conclusion,Edison invented electric bulb,What was his new idea,How to practice his idea,Make a breakthrough,Oil lamp had many

19、disadvantages,wanted to invent electric bulb,tried with different materials, but,failed,Summed up experience and tried,found tungsten wire,钨丝,benefit human being,30,oil lamp had disadvantages,dark, dirty, fire disaster,wanted to invent electric bulb,safe, convenient,tried with carbon wire first, fai

20、led,burn for a short time,tried other materials , failed too,as many as 1600 kinds,analyzed his experiments,give up the unsuitable materials,found tungsten wire,burn for long time, good quality,benefit human being,brighten in the evening,Edison invented electric bulb,31,32,33,oil lamp had disadvanta

21、ges,dark, dirty, fire disaster,wanted to invent electric bulb,safe, convenient,tried with carbon wire first, failed,burn for a short time,tried other materials , failed too,as many as 1600 kinds,analyzed his experiments,give up the unsuitable materials,found tungsten wire,burn for long time, good qu

22、ality,benefit human being,brighten in the evening,Edison invented electric bulb,34,Edison invented electric bulb,benefit human being,analyzed his experiments tried,wanted to invent electric bulb,had many disadvantages,tried with carbon wire first, failed,benefit human being,tried other materials , f

23、ailed too,found the right one-tungsten wire,Oil lamp had many disadvantages,wanted to invent electric bulb,tried with carbon wire first, failed,tried other materials , failed too,analyzed his experiments,found the right one-tungsten wire,35,What was the problem,How did he prove his idea,Draw a concl

24、usion,Speaking,Edison invented electric bulb,What was his idea,before, oil lamp,油灯,dark,dirty,cause fire disaster,Safe and convenient electric,bulb,Make experiments with,different materials,as much,as 1600 kinds,Finally, the best material,tungsten wire,钨丝,burn,for a long time,36,_,_,_,_,_,_,_,_,_,Group 1,What,40words,Group2,How,60words,Group3,conclusion,30words,A great scientist-Edison,Writing,li