必修 5Unit 1 Great Scientists 阅读课-高中一年级标签:来源必修必修 5Unit5Unit 1 1 GreatGreat ScientistsScientists 阅读课阅读课第一步第一步 作业检查作业检查1. Ask two or three students to give a talk on their chosen scientists.2. Ask some students their opinions about the two questions in “Pre-reading”.第二步第二步 导入新课导入新课1. Show students a video about SARS and let them have some knowledge of the effect of infectious diseases on their life.Tell them the effect of cholera in the nineteenth century London was even more devastating.2. Ask students who defeated this terrible cholera. (John Snow.)John Snow第三步第三步 预测文章内容（个人自由发言）预测文章内容（个人自由发言）1. Ask students to read the title “John Snow Defeats King Cholera” and look at the pictures, then guess what the passage may be about.2. Ask one or two students to give their opinions.第四步第四步 阅读文章阅读文章必修必修 5Unit5Unit 1 1 GreatGreat ScientistsScientists 阅读课阅读课Keys: T F F F T3. Let students have an intensive reading and finish the form.ParagraphStages in an experiment Example in this investigation1What causes cholera?2必修必修 5Unit5Unit 1 1 GreatGreat ScientistsScientists 阅读课阅读课3Collect data on those who were ill or died and where they got their water. Plot information on a map to find out where people died or did not die.45Find other evidence to confirm the conclusion.必修必修 5Unit5Unit 1 1 GreatGreat ScientistsScientists 阅读课阅读课6Answers：ParagraphStages in an experiment Example in this investigation1必修必修 5Unit5Unit 1 1 GreatGreat ScientistsScientists 阅读课阅读课2Make up a questionWhich theory is correct?3Think of a methodand Collect resultsCollect data on those who were ill or died and where they got their water.Plot information on a map to find out where people died or did not die.必修必修 5Unit5Unit 1 1 GreatGreat ScientistsScientists 阅读课阅读课4Analyse the resultsAnalyse the water to see if that is the cause of the illness.5Repeat if necessaryFind other evidence to confirm the conclusion.6Draw a conclusionThe water is to blame. The source of all drinking water should be examined so that it is safe.第五步第五步 课文重组课文重组John Snow was a _ 必修必修 5Unit5Unit 1 1 GreatGreat ScientistsScientists 阅读课阅读课doctor in London. There was the most deadly disease called King Cholera of his day. Every time there was a (an) _, many people died of disease. John Snow wanted to use his knowledge to help solve this problem. He knew it would never be _until its cause was found. At that time, there were two theories about cholera. The first suggested that cholera_ in the air without reason. The second suggested that people _ this disease into their bodies with their meals. John Snow determined to find out why. He believed in the second theory but needed to prove he was correct. So he_ data to test the two theories. He _ on a map where all the dead people had lived and the map gave a _ clue about the cause of the disease. It seemed the water was to _. Next, John Snow looked into the source of the water for these streets. With enough evidence, he announced with_ that polluted water carried the disease of cholera.Answers:Well-known；out break；controlled；multiplied；absorbed；collected；marked；va luable；blame；certainty第六步第六步 讨论（双人或四人小组活动）讨论（双人或四人小组活动）Ask students the following question and let them state必修必修 5Unit5Unit 1 1 GreatGreat ScientistsScientists 阅读课阅读课their point of view. Nowadays there are many infectious diseases, such as SARS, Bird Flu, and AIDS, which affect public health. Facing this, what should we do for public heath care? 第七步第七步 作业布置作业布置 1. Read this text again and try to find out some important or difficult words and expressions.2. Preview “Learning about languageDiscovering useful words and expressions”.必修必修 5Unit5Unit 1 1 GreatGreat ScientistsScientists 阅读课阅读课1. Let students skim the text and find out the main idea of the passage.Whats the main idea of the passage?A. John Snow was a well-known doctor in London.B. The cause of Cholera was polluted water.C. The source of all drinking water should be examined.D. How John Snow collected, analyzed data to find the cause of the disease and solved it.Key: D2. Let students read the text again and do the true or false questions. Cholera was the most deadly disease of its day. John Snow attended Queen Elizabeth I to ease the birth of her babies. John Snow got no interest in two theories explaining how cholera killed people. In 1854, the cholera outbreak was so severe that 500 people had died in 10 days. John Snow found that the polluted water was the cause of the cholera.