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1、Book5 - Unit1 Great scientistsReading： John Snow Defeats “King Cholera” (學(xué)案-教師版)Fast reading ： Read the text quickly and find out the main idea of each paragraph.Para 1 A . the problem Para 2 B. the method Para 3 C. the cause-two theoriesPara 4 D. the result and conclusion Para 5 E. the discoveryPar

2、a 6 F. the suggestionKeys： ACBEDFCareful reading： Task 1： Choose the best answers according to the text.1.Why did John Snow attend Queen Vivtoria as her personal physician? A. Because he was well known all over the world. B. Because he was expert at medical science. C. Because he was an old doctor.

3、D. Because Queen Victoria liked him very much.2. Which of the following statements is Not true according to the text? A. John Snow was a famous doctor. B. John Snow finally defeated “King Cholera”. C. Cholera was a deadly disease of its day. D. Few people died every time there was an outbreak of cho

4、lera.3. After he made further investigations, John Snow found . A. Cholera multiplied in the air B. people absorbed this disease into their bodies. C. the water from the polluted river was to blame D. flies spread the disease4. How was “King Cholera” defeated? A. By peoples not polluting the river a

5、gain B. By peoples eating healthy diets. C. By peoples delivering the water from other places. D. By peoples stopping drinking the polluted water.5. Whats the main idea of the text? A. John Snow was a well-known doctor in London. B. The cause of cholera was polluted water. C. the source of all drink

6、ing water supplies should be examined. D. How John Snow defeated “King Cholera”.Keys: BDCDDTask 2: Complete the table according to the text.John Snow Defeats “King Cholera”About John SnowHe was a famous 1. doctor and Queen Victorias personal physician.He made up his mind to solve the problem of 2. c

7、holera.About choleraIt was a 3. deadly disease of its day. People didnt know its cause or its 4. cure .Many thousands of people died every time there was an outbreak. Two theoriesCholera spread in a cloud of dangerous gas.Cholera was 5.aborbed into peoples bodies with their meals.His suspicionHe tho

8、ught that the 6. second theory was correct.The course of finding evidence As the disease spread quickly through poor neighbourhoods of London, John Snow began to gather information.He found the outbreak was very 7.severe in two particular streets.After further investigations he discovered it seemed

9、that the water was to 10. blame.When people didnt use the 8.polluted water, the disease slowed down, which showed that cholera was really spread by germs.Ways to prevent cholera from happening John Snow suggested that the 9. source of all the water supplies be examed.The water companies were 10. ins

10、tructed not to expose people to polluted water any more.Post reading: Complete the passage according to the text.John Snow was a well-known physician in London in the 19th century and wanted to help ordinary people 1. exposed (expose) to cholera which was the deadly disease of its day. It was believ

11、ed that cholera was commonly caused by the baceria in the air or people absorbed this sisease into their bodies with their meals. 2. Suspecting (suspect) that the second theory was correct, he made further investigations and discovered that it was the water that was 3. to blame (blame). Next, John S

12、now looked into the source of the water for these two streets4. where all the dead people had lived. Fortunately 5. when he found that it came from the river polluted by the dirty water from London, he told the 6.astonished (astonish) people in Broad Street immediately to remove the handle from the

13、pump so that 7. it could not be used. In another part of London, supporting evidence from two other 8.deaths (die) that were linked to the Broad Street outbreak was found by him, too. 9. With this extra evidence, John Snow was able to announce with 10. certainty (certain) that polluted water carried the virus. Finally “King Cholera” was defeated.