必修五Unit1-词汇及两篇课文.ppt

Who used peas to show how physical characteristics are passed form parents to their children? Gregor Mendel Who put forward a theory about black holes? Stephen Hawking John Snow defeated “King Cholera” Fast-reading Who was John Snow? What was King Cholera? John Snow defeated “King Cholera” John Snow was a famous physician who attended Queen Victoria. King Cholera was the deadly disease of its day. 那个时代的致命疾病 How？ Read the passage again and number the events in the order that they happened. P3 Part 1 2 1 4 7 3 8 5 6 An outbreak of cholera hit?London in 1854. John Snow began to test two theories. John Snow investigated two streets where the outbreak was very severe. John Snow marked the deaths on a map. He found that most of the deaths were near a water pump. He announced that the water carried the disease. He had the handle removed from the water pump. King Cholera was defeated.　　 The passage is written as a report of an experiment and there are 7 steps: 1.Find a problem. 2.Make up a question. 3.Think of a method. 4.Collect results. 5.Analyse results. 6.Repeat if necessary. 7.Draw a conclusion. John Snow, a physician who a________ Queen Victoria, was determined to find the cause of cholera, a s_________ infectious disease. He s________ that victims a________ the disease into their bodies with their meals but he had no evidence. When another o________ hit London, he began his e__________ into poor neighborhoods. Read Para 1-3 carefully attended severely suspected absorbed outbreak enquiry The map he made gave him a valuable c____ about the cause. By looking into the source of the water for the n______________, he found that cholera was spread by g______. He found supporting evidence from two other deaths that were l_______ to the outbreak. With this extra evidence, John Snow was able to announce with c________ that polluted water carried the virus. The water companies were i__________ not to e_______ people to polluted water any more. Finally, “King cholera