Book5 Unit1 Great Scientists reading John Snow Defeats “King Cholera” 兴宁市齐昌中学 陈雪娜Teaching aims1.Enable the students to master the key words and expressions of the text, such as expose, attend,defeat, cure, pollute, blame,draw a conclusion and so on2.Let students make a progress in reading skills, including skimming and scanning; 3. Develop students sense of cooperative learning；4. Let students learn about the how John Snow find the cause of cholera Key and difficult points1. Develop students reading skills, especially the ability to find out detailed information and speaking ability.2. Get the students involved in teaching activities and practice more in reading.3. Enable the students to retell the passage use their own words.课前预习：Ask students to recite the words and expressions 1. Put forward 2. draw a conclusion 3.defeat 4. blame 5.expose 6.cure 7. challenge 8.pollute 9. suspect 10. handle 11.attend 12.link.toLearning procedure:Step 1 Dictation 6 words 1._ 2._3._4._5._ 6._Step2 Leading in 1). What do you know about infectious disease? 2).Do you know cholera( 霍乱）?Step 2 Fast reading Match the main idea of each para Para 1 John Snow was interested in two theories. Para 2 John Snow got the extra supporting evidence. Para 3 John Snow began to test two theories.Para 4 How to prevent cholera from happening.Para 5 The polluted source of water was the reason.Para 6 A famous doctor who wanted to find the cause of cholera.Para 7 John Snow found a valuable clue about the cause of cholera.Step 3. Careful reading 1). Read para 1 and then fill in the blanks. John Snow was an _ doctor in London who _Queen Victoria as her personal_. He thought about helping ordinary people _ to cholera. Though the cause and the _ of it were unknow, he wanted to face the _ and solve the problem. 2) para 2 What was the two theories that John Snow was interested in? 3) Listen to the para 3 and 4 and find the numbers below and the relevant events . 1854 2, 500, 104) First he marked on a map the exact places where all the dead people had lived.5) para 5and 6 It seems that _ was to blame. Why? He found another supporting evidence:_.6)Para7How to solve the problem?John Snow suggested that the source of all the water supplies_.The water companies were instructed not to expose people to _ any more.Step4. Summary Read the passage again and fill in the blanks:John Snow was a well-known _ in London in the _ century. He wanted to find the _ of cholera in order to _ it. In 1854 when a cholera _ out, he began to gather information. He _ on a map where all the dead people had lived and he found that many people who had drunk the dirty water from the _ died. So he decided that the polluted water carried cholera. He suggested that the _ of all water supply be _ and new methods of dealing with polluted water be found. Finally, “King Cholera” was _.Step5. Group work Read the passage again and finish the chart.Scientific Report by John SnowThe problem choleraThe cause Idea 1or 2The method mapThe resultsThe solutionStep 6. Homework1 . Recite the para 1 in reading by heart;2. Underline the long and difficult sentences;3. Finish the related exercises on workbook.2