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1、Unit 1 Science and ScientistsPeriod 1 Reading and thinking 导学案学习目标1. To read about how John Snow defeated King Cholera2. To work out the stages of scientific research3. To understand the important role of questioning spirit in scientific research.4. To solve the reading tasks by thinking logically a
2、nd cooperating with peers.学习过程l.Name some famous scientists you know and share some details about them.2. What is the main idea of the text?3. What order would you put the seven stages in?analyze the resultsask a questiondraw a conclusioncollect datafind a problemthink of a methodfind supporting evi
3、dence4. Read the text quickly and find out the answers to the following questions.1) . Whats the purpose of the text?2) . What inspired John Snow according to the first paragraph?3) . Whats the use of John Snows map in his research?4) . How did John Snow feel about the cause of cholera after he fini
4、shed the map?5) . Why was cholera called “King Cholera” in the text?Snow _3 the places wherethe people who _4 had lived.(B)6) : Read the passage again and complete the chart below.At was believed that cholera was caused by bad _ 1 or germs in 2 (A)The _9_of the pumpwasremoved.(E)The pump water carri
5、ed 8(D)1. Many deaths occurred near the5 in Broad Street.(C)2. Some people _6_drunk the water from the pump, and lived.3. A woman and her daughter died in another part of London after_7_.6 : Match the following headers with the letters from the chart above, write AE in theblanks.1) conclusion2) evid
6、ence3) process4) solution5) theories7 : Answer the following questions:1. John Snow believed idea 2 was right. How did he finally prove it?2. Do you think John Snow would have solved this problem without the map?3.Cholera is a 19th century disease. What disease doyou think is similar to choleratoday
7、?8: Consolidate what you have learned by filling in the blanks:John Snow was a well-known _1 in London in the _2_ century. He wanted to find the_3 of cholera in order to help people 4 it. In 1854 when a cholera _5 London,he began to gather information. He 6_ on a map 7 all the dead people had lived
8、and he found that many people who had 8(drink) the dirty water from the _9 died. So hedecided that the polluted water 10 cholera. He suggested that the 11_ of all watersupplies should be _12 and new methods of dealing with 13 water be found. Finally, King Cholera was 14.1.2.3.4.5.6.7.8.9.10.11.12.13
9、.14.keys1 .Charles Darwin: he wrote a book explaining how animals and plants developed as theenvironment changed.2. The text is mainly about John Snow and how he defeated king cholera.1.1) find a problem 2). ask a question 3). think of a method 4). collect data 5). analyze the results 6. find suppor
10、ting evidence 7. draw a conclusion4 .1) To tell us how John Snow found the cause of cholera and the cure for it.2) To destroy Cholera once and for all.3) To help him find the reason of the cholera outbreak by marking the residences of all the patients.4) Unsure; he suspected that the water pump was
11、to blame. Thus, he needed more supporting proof.5) Because cholera was the most deadly disease of its day.5 . keys: 1. air 2. food or water 3. marked 4. died 5.water pump 6. had not 7. moving away from Broad Street 8. cholera germs 9. handle.6 .keys: 15: DCBEA7 .keys:1) John Snow finally proved his
12、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.2) No. The map helped John Snow organize his ideas. He was able to identify those households that had had many deaths and check their water-dr
13、inking 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) SARS and Covid-19 because they are both deadly and fatally infectious, have an unknown cause and need serious public health care to solve them urgently.8 . Keys: 1. doctor 2. 19th 3.cause 4.infected with 5.hit 6.marked 7.where 8.drunk9 .pump lO.carried 11. source 12.examined 13.polluted 14.defeated