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1、Unit 1 Great Scientists,Unit 1 Great Scientists,Reading,Archimedes 阿基米德,Charles Darwin 达尔文,Marie Curie 居里夫人,Gregor Mendel 门德尔,Leonardo da Vinci 达芬奇,Stephen Hawking 斯帝芬 霍金,Thomas Edison,Zhang Heng,1.Which scientist discovered that objects in water are lifted up by a force that helps them float?,B. Ar
2、chimedes,C. Thomas Edison,A. Charles Darwin,2. Who wrote a book explaining how animals and plants developed as the environment changed?,A. Marie Curie,C. Charles Darwin,B. Gregor Mendel,3. Who used peas to show how physical characteristics are passed from parents to their children.,A. Thomas Edison,
3、C. Archimedes,B. Gregor Mendel,4. Who discovered radium?,A. Marie Curie,C. Newton,B. Zhang Heng,5.Who invented the way of giving electricity to everybody in large cities?,A. Stephen Hawking,C. Thomas Edison,B. Archimedes,6.Who was the painter that studied dead bodies to improve his painting of peopl
4、e?,A. Gregor Mendel,C. Marie Curie,B. Leonardo da Vinci,7. Who invented a lamp to keep miners safe underground?,A. Sir Humphry Davy,C. Faraday,B. Thomas Newcomen,8. Who invented the earliest instrument to tell people where earthquakes happened?,A. Charles Darwin,C. Watt,B. Zhang Heng,9.Who put forwa
5、rd a theory about black holes?,A. Stephen Hawking,C. Copernicus,B. Archimedes,similarities,careful,hard-working,strict,positive,talented,creative,bright,strong- willed,What should scientists do to prove a new idea in scientific research?,Pre-reading,Draw a conclusion Think of a method Collect result
6、s Make up a question Find a problem Analyse the results Repeat if necessary,What order would you put the seven in?,Find a problem,Make up a question,Think of a method,Collect results,Analyse the results,Repeat if necessary,Draw a conclusion,Find a problem,Make up a question,Think of a method,Analyse
7、 the results,Repeat if necessary,Infectious diseases：flu，bird flu，SARS And cholera.,John Snow defeats “King cholera”,ReadingReading,The main idea of each paragraph：,Para.1: The causes of cholera. Para.2: The correct or possible theory. Para.3: Collect data on those where people were ill and died and
8、 where they got their water. Para.4: Plot information on a map to find out where people died or did not die. Para.5: Analyze the water to see if that is the cause of the illness. Para.6: Find other evidences to confirm his conclusion. Para.7: The polluted dirty source of drinking water was to blame
9、for the cause of the London cholera.,Detailed questions,Q1. Who was John Snow? A：John Snow was a well-known doctor in London-so famous, indeed, that he attended Queen Victoria to ease the birth of her babies. Q2. What did John Snow do when the serious cholera broke out? A： John Snow wanted to use hi
10、s knowledge to help solve this problem. Q3. What were the two theories then? A： The first suggested that cholera multiplied in the air without reason. A cloud of dangerous gas would float around until it found its victims. The second suggested that people absorbed this disease into their bodies with
11、 their meals. From the stomach the disease attacked the body quickly and soon the affected person was dead.,Q4. What was John Snows attitude towards the two theories? A：He believed in the second theory but needed to prove he was correct. Q5. How did John Snow find the evidence for his theory? A： He
12、gathered the information and marked a map where all the dead people had lived. And at last he found that all the dead people drank the polluted water from the river. Q6. How did he solve the problem finally? A： To prevent this from happening again, John Snow suggested that the source of all water su
13、pplies be examined and mew methods of dealing with polluted water be found. And finally “King Cholera” was defeated.,Detailed questions,Read the passage again and fill in the blanks: John Snow was a well-known _ in London in the _ century. He wanted to find the _ of cholera in order to _ it. In 1854
14、 when a cholera _ out, he began to gather information. He _ on a map where all the dead people had lived and he 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 water supply be _ and new method
15、s of _ with polluted water be found. Finally, “King Cholera” was defeated.,doctor,19th,cause,defeat,broke,marked,pump,source,examined,dealing,(in 5 minutes),ConsolidationConsolidation,Discussion:,What should you do if youre traveling to a country that has a cholera outbreak according to Snows theory
16、? What spirit can we find in John Snow? As a student, what should we learn from him?,Read the passage aloud after class. Prepare for comprehending and learning about language.,Homework：Homework：,Thank you for your attendance!Thank you for your attendance!,9、 人的价值，在招收诱惑的一瞬间被决定。20.9.1620.9.16Wednesday, September 16, 2020 10、低头要有勇气，抬头要有低气。15:31:4815:31:4815:319/16/2020 3:31:48 PM 11、人总是珍惜为得到。20.9.1615:31:
