Unit 1 Great Scientists reading (浙江省杭州市)
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| 名称 | Unit 1 Great Scientists reading (浙江省杭州市) |  | |
| 格式 | rar | ||
| 文件大小 | 520.9KB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 人教版（新课程标准） | ||
| 科目 | 英语 | ||
| 更新时间 | 2007-09-25 20:35:00 | ||
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课件19张PPT。Unit 1Great scientistsWhen you eat some seafood that has been polluted by the dirty water, how will you feel?You feel……Maybe you have got ________.CholeraCholera infects people’s intestines, causing diarrhea, vomiting and leg cramps.Is cholera an infectious disease?Do you remember which infectious disease struck China in 2003 and which one struck Asia in 2005? SARS Bird fluWere these two diseases defeated at last?Do you know if cholera in the 19th London was defeated at last? Who? King CholeraJohn Snow defeats “King cholera”ReadingDo you know how to prove a new idea in scientific research? Please work in pairs to put the following stages into correct orders.draw a conclusion think of a method collect results make up a question find a problem analyse the results find supporting evidence repeat if necessary What order would you put them in?Find a problem Make up a question Think of a method Collect results Analyse the results Find supporting evidence Draw a conclusion Repeat if necessary Skimming
How does John Snow prove his new scientific idea? Please read the passage quickly and put the correct stages into the reading. 1 2 3 4 5 6 7Detailed readingPara1: What is the problem he found?Nobody knew the cause of the serious disease of cholera.Para 2: What is the question he made up?Which theory was right?The first suggested that cholera multiplied in the air without reason.
The second suggested that people absorbed this disease into their bodies with their meals.Para3: What methods did he think of ?Gather the information
Mark on a map where all the dead people had livedPara4: How to collect results?The map gave a valuable clue about the cause of the disease.Look at the map: Which houses had had many/ no deaths?Their location: near the water pumpThe result: It seemed the water was to blame.Para 5: How to analyse results?He looked into the source of the water for these two streets.Para 6: What supporting evidence did he find?He found two other deaths in another part of London that were linked to the Broad Street outbreak.What conclusion did he make?Cholera was spread by germs and not in a cloud of gas.
He announce with certainty that polluted water carried
the disease.Para7: Suggestions The source of all water supplies should be examined and new methods of dealing with polluted water should be found.The end: John Snow defeated King Cholera finally.What does king mean according to the passage?Powerful
Hard/ difficult to cure the cause of the serious disease of cholera. ________________________ that attacked victims____________from the next cholera attack to test theories. Try to prove which method was correct.He found the cause of cholera was____________________._______. Because the data showed a connection with the water.John Snow was able to ___________ once its cause was known.No body knew___________________Strange cloud in the airwith their mealsCollect datathe polluted waterdefeat choleraIdea 2Speaking activityDiscuss in groups of four, which field do you want to contribute yourself to in the future? One takes down the groupmates’ opinions, after that ,report the groupmates’ opinions to the whole class.Skimming: answer the following questions:What are the two theories John Snow got interested in?
What did John Snow’ experience show?
How to prevent the disease happening again?1.The two theories are : The first suggested that cholera multiplied in the air without reason. The second suggested that people absorbed this disease into their bodies with their meals.3.To prevent this from happening again, John Snow suggested that the source of all water supplies be examined and new methods of dealing with polluted water be found.2.John Snow had shown that cholera was spread by germs and not in a cloud of gas. Keys:Discussion: Discuss the following questions in groups of four.1.2.3.Cholera was a 19th century disease. What disease do you think is similar to cholera today?John Snow believed Idea 2 was right. How did he finally prove it?Do you think John Snow would have solved this problem with- out the map? Give a reason. Two diseases, which are similar today, are SARS and AIDS because they are both very serious, have an unknown cause and public health care to solve them. John Snow finally proved his idea because he found an outbreak that was clearly related to cholera, collected information and was able to tie cases outside the area to the polluted water.Keys1.2. No. The map helped John Snow organise his ideas. He was able to identify those households that had had many deaths and check their water-drinking habits. He identified those houses that had had no deaths and surveyed their drinking habits. The evidence clearly pointed to the polluted water being the cause.3.
How does John Snow prove his new scientific idea? Please read the passage quickly and put the correct stages into the reading. 1 2 3 4 5 6 7Detailed readingPara1: What is the problem he found?Nobody knew the cause of the serious disease of cholera.Para 2: What is the question he made up?Which theory was right?The first suggested that cholera multiplied in the air without reason.
The second suggested that people absorbed this disease into their bodies with their meals.Para3: What methods did he think of ?Gather the information
Mark on a map where all the dead people had livedPara4: How to collect results?The map gave a valuable clue about the cause of the disease.Look at the map: Which houses had had many/ no deaths?Their location: near the water pumpThe result: It seemed the water was to blame.Para 5: How to analyse results?He looked into the source of the water for these two streets.Para 6: What supporting evidence did he find?He found two other deaths in another part of London that were linked to the Broad Street outbreak.What conclusion did he make?Cholera was spread by germs and not in a cloud of gas.
He announce with certainty that polluted water carried
the disease.Para7: Suggestions The source of all water supplies should be examined and new methods of dealing with polluted water should be found.The end: John Snow defeated King Cholera finally.What does king mean according to the passage?Powerful
Hard/ difficult to cure the cause of the serious disease of cholera. ________________________ that attacked victims____________from the next cholera attack to test theories. Try to prove which method was correct.He found the cause of cholera was____________________._______. Because the data showed a connection with the water.John Snow was able to ___________ once its cause was known.No body knew___________________Strange cloud in the airwith their mealsCollect datathe polluted waterdefeat choleraIdea 2Speaking activityDiscuss in groups of four, which field do you want to contribute yourself to in the future? One takes down the groupmates’ opinions, after that ,report the groupmates’ opinions to the whole class.Skimming: answer the following questions:What are the two theories John Snow got interested in?
What did John Snow’ experience show?
How to prevent the disease happening again?1.The two theories are : The first suggested that cholera multiplied in the air without reason. The second suggested that people absorbed this disease into their bodies with their meals.3.To prevent this from happening again, John Snow suggested that the source of all water supplies be examined and new methods of dealing with polluted water be found.2.John Snow had shown that cholera was spread by germs and not in a cloud of gas. Keys:Discussion: Discuss the following questions in groups of four.1.2.3.Cholera was a 19th century disease. What disease do you think is similar to cholera today?John Snow believed Idea 2 was right. How did he finally prove it?Do you think John Snow would have solved this problem with- out the map? Give a reason. Two diseases, which are similar today, are SARS and AIDS because they are both very serious, have an unknown cause and public health care to solve them. John Snow finally proved his idea because he found an outbreak that was clearly related to cholera, collected information and was able to tie cases outside the area to the polluted water.Keys1.2. No. The map helped John Snow organise his ideas. He was able to identify those households that had had many deaths and check their water-drinking habits. He identified those houses that had had no deaths and surveyed their drinking habits. The evidence clearly pointed to the polluted water being the cause.3.