1、Unit 1,Great scientists,Great Scientists,蘄春一中：余汝,Period 1,Reading,Do you know their names?,Yuan Longping,Father of Hybrid Rice,She discovered radium in 1898. She received two Nobel Prizes, one for physics and one for chemistry.,Marie Curie,He invented electric light bulb, telegraph .,Thomas Edison,G

2、enius is one percent inspiration and ninety-nine percent perspiration,He put forward a theory about black holes.,Stephen Hawking,He wrote The Origin of Species. It explained how animals and plants developed as the environment changed.,Charles Darwin,He invented the first seismograph to indicate the

3、direction of an earthquake.,Zhang Heng,He brought up Law of universal gravitation and Newtons laws of motion,Newton,The father of physics,Albert Einstein,He is best known for his Theory of Relativity,hard-working,What do you think they have in common?,modest,imaginative,determined,devoted,wise,caref

4、ul,creative,THINK,WORK,FIND,How do the scientists usually do scientific research?,The process:,Find a problem Make a question Think of a method Collect results Analyze the results Find supporting evidence Draw a conclusion,SOLVE,Pre- reading,Choose the best answers 1. Whats the purpose of the text?

5、A. To show us how difficult it was to find a cure for cholera. B. To tell us how John Snow found the cause of cholera and the cure for it. C. To show us how difficult it was to carry out experiments at that time. D. To tell us the way cholera spread and how serious it was.,B,Fast reading,2. Why was

6、cholera called “King Cholera” in the text? A. Because cholera caused many deaths. B. Because it got its name from Queen Victoria. C. Because cholera was the most deadly disease of its day. D. Because it was defeated with the help of the king.,C,3. What can be inferred from the passage? A. Cholera wa

7、s spread by germs and not in a cloud of gas. B. John Snow wouldnt have solved the problem without the map. C. Cholera would never be controlled until its cause was found. D. “King Cholera” was defeated by John Snow.,B,4. Which of the following is TRUE according to the text? A. John Snow became famou

8、s after cholera hit England in the 19th century. B. John Snow began to collect information long before cholera hit England in the 19th century. C. The mother and her daughter mentioned in the text both lived in Broad Street. D. John Snow felt unsure about the cause of cholera after he finished the m

9、ap.,D,5.Whats the main idea of the passage? 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, analyzed data and found the cause of the disease and solved it .,d,Use the seven stages in s

10、etting out a new scientific idea to describe each paragraph.,Careful reading,Find a problem,The _ of cholera,outbreak,Comprehending,Theory two: When people _ cholera into their bodies with meals, their bodies were attacked and soon they died.,Theory one: Cholera _ in the air and dangerous gas floate

11、d around until it found its victims.,Make a question ( Which theory was correct? ),multiplied,absorbed,Think of a method,To _ the second theory was correct.,prove,Collect results,Some information was _ on how many people died and where they got water.,Analyse results,_the source of the water to see

12、if that is the cause of the illness.,gathered,Look into,find supporting evidence,With extra _ , it was announced definitely that _ water carried cholera.,Make a conclusion,Polluted water spread cholera. “King Cholera” was _ .,evidence,polluted,defeated,Consolidation:Fill in the blanks,John Snow was

13、a _ doctor in London. There was the most deadly _ called “King Cholera” of its day. Every time there was a(an) _, many people died. John Snow wanted to face the _ and _ this problem. He knew that it would never be _ until its cause was found. At that time, there were two theories about cholera. The

14、first suggested that cholera _ in the air.,famous,disease,outbreak,challenge,solve,controlled,multiplied,The second suggested that people _ this disease into their bodies with their_ .John Snow _ the second theory was correct but he needed evidence. So he _ data to test the two theories. He _ on a m

15、ap where the dead people had lived and the map gave a _ clue about the cause of the disease .,absorbed,meals,suspected,collected,marked,valuable,It seemed that the water was to _ .Next ,John Snow looked into the _ of the water for these streets .He found two other deaths in another part of London that were _ _ the Broad Street outbreak . With enough evidence, he announced _ _ that _ _ carried the virus of cholera.,blame,source,linked,to,with,certainty,polluted,water,Cholera is a 19th century disease. What disease do you think is similar to cholera today?,Discussion: