1、Unit 1 Science and Scientists Period 1 Reading and thinking导学案1. To read about how John Snow defeated “King Cholera”2. 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 and
2、 cooperating with peers.1.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 results _ask a question_ draw a conclusion _ collect data _ find a problem _ think of a method_ find sup
3、porting evidence 4. 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
4、 he finished the map?5). Why was cholera called “King Cholera” in the text?5： Read the passage again and complete the chart below.At was believed that cholera was caused by bad _1_or germs in_2_（A）Snow _3_the places where the people who _4_had lived.(B)The _9_of the pump was removed.(E)1. Many death
5、s occurred near the _5_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_.The pump water carried _8_(D)6：Match the following headers with the letters from the chart above. write A-E in the blanks.1) conclu
6、sion_2) evidence _3) process_4) solution _5) theories_7： 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 do you think is simi
7、lar to cholera today?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_
8、all the dead people had lived and he found that many people who had _8_ (drink) the dirty water from the _9_ died. So he decided that the polluted water _10_ cholera. He suggested that the _11_ of all water supplies should be _12_ and new methods of dealing with _13_ water be found. Finally, “King C
9、holera” was _14_.1._2._3._4._5._6._7._8._9._10._11._12._13._14._keys1.Charles Darwin: he wrote a book explaining how animals and plants developed as the environment changed.2. The text is mainly about John Snow and how he defeated king cholera.3.1) find a problem 2). ask a question 3). think of a me
10、thod 4). collect data 5). analyze the results 6. find supporting 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 th
11、e patients.4) Unsure; he suspected that the water pump was 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.
12、6.keys: 15: DCBEA7.keys:1) 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.2) No. The map helped John Snow organize his ideas. He was able to identify those hous
13、eholds 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) 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.drunk 9.pump 10.carried 11.source 12.examined 13.polluted 14.defeated
