20xx人教版高中英语必修五unit1greatscientists3

20xx人教版高中英语必修五unit1greatscientists3内容摘要：

reading ) a problem a question of a method results results supporting evidence a conclusion John Snow Defeats “King Cholera” deadly infectious = causing death = that can be spread quickly SARS Bird flu AIDS The passage is written following the stages: Read the first and last sentences of each para. Steps: Which para. 1. Find a problem 2. Make a question 3. Think of a method 4. Collect results 5. Analyse results 6. Find supporting evidence 7. Make a conclusion Para 1 Para 2 Para 3 Para 4 Para 5 Para 6 Para 6 Para 7 Solution The harm of Cholera: deadly Many thousands of terrified people died every time there was an outbreak. whenever cholera broke out. Find a problem The problem : Neither its cause nor its cure was understood. Make up a question The likely reasons: Cholera spread in the air. People absorbed this disease into their body with their meals. √ Think of a method The way of researching: By enquiring and gathering information on a map. Collect results What he found: •many deaths were near the water pump. •some houses had had no deaths. → a valuable clue about the cause His preliminary(初步的 ) conclusion: •water。