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1、Unit 1 Great scientists,Reading,Unit 1 Great scientistsReading,Many deaths in African countries in 2005 and even now,Many deaths in African countri,It is a kind of terrible disease caused by drinking dirty water or food, and it caused a lot of deaths in the old times and it was very difficult to def
2、eat.,It is a kind of terrible disea,Is there no way to defeat cholera?,No !,Is there no way to defeat chol,John Snow Defeats “King Cholera”,John Snow Defeats “King Choler,Fast reading,Whats the main idea of the passage?John Snow was a well-known doctor in London.The cause of Cholera was polluted wat
3、er.The source of all drinking water should be examined.How John Snow collected, analyzed data and found the cause of the disease and solved it.,Fast readingWhats the main id,Careful reading,Para.1,1.Who was John Snow?2.What made John Snow inspired?3.What would happen every time cholera broke out?,He
4、 was a famous doctor in Londonso expert, indeed, that he attended Queen Victoria as her personal physician.,He became inspired when he thought about helping ordina-ry people exposed to cholera.,Many thousands of terrified people died.,Careful readingPara.11.Who was,John Snow,Doctor，expert,Inspired,
5、help, people, exposed to,“King cholera”,Deadly disease,Cause & cure,understood,People died,Challenge,Outbreak,Para.1,Find out,What caused cholera?,Find a problem: What caused cholera?,John Snow Doctor，expertInspire,Careful reading,How many theories about cholera were there?,Two,Para. 2,Careful readi
6、ngHow many theori,fromstomach,Para. 2,Cholera,multiplied,gas,float,found victims,absorb,bodies,into,disease,disease,body,people,died,Make a question: Which theory to believe ?,Theory 1,Theory 2,fromPara. 2 Cholera multiplied,Para. 3,Which theory did John Snow think was correct?2. What did he do to c
7、ollect evidence?,Careful reading,John Snow suspected that the second theory was correct but he needed evidence.,He gathered information.,Para. 3Which theory did John S,Para. 3,Theory （）,Need evidence,Outbreak,hit,London,In 1854,Beganenquiry,Gather information,As disease spread,In the two streets,Out
8、break, so severe,More than 500, died,Determined to find out why,Think of a method,Para. 3Theory （） Need eviden,Para. 4,How did he get a valuable clue about the cause of the disease?2. What did he notice and discover ?3. What was to blame for the cholera?,Careful reading,First he marked on a map the
9、exacted places where all the dead people have lived, and this gave him a valuable clue about the cause of the disease.,You can get the answer from sentences 2, 3, 5, 6.,It seemed that the water was to blame.,Para. 4How did he get a valuab,A map of Broad Street,What method did he use?,Broad Street,Ma
10、ny deaths happened here.,No death happened here.,The water from the pump was to blame.,Public house,Paragraphs 3+4,A map of Broad StreetWhat met,Para. 4,Marked on a map the place where the dead lived,Gaveclue,The deaths,near,water pump( in Broad Street),Houses (no deaths),worked,pub,given,Free beer,
11、Water was to blame.,Collect results,Para. 4Marked on a map the pla,Para. 5,Why did he tell people to remove the handle from the pump?What happened after the handle was removed?,Careful reading,Because he found that the water came from the river polluted by the dirty water from London.,The disease sl
12、owed down.,Para. 5Why did he tell people,comefrom,Para. 5,look into,The source,the polluted river,told people,Remove handle,use,disease,Slowed down,show:,Cholera,was spread,germs,gas,Analyze the results,comePara. 5look intoThe sourc,Paras. 6&7,What supporting evidence did he find?2. What did he do n
13、ext with the exact evidence?3. What measures did John Snow take to prevent the disease from spreading?,Careful reading,He found supporting evidence from two other deaths that were linked to the Broad Street outbreak.,With the exact evidence he was able to announce with certainty that polluted water
14、carried the virus.,He suggested that the source of all the water supplies be examined. The water companies were instructed not to expose people to polluted water any more.,Paras. 6&7What supporting evid,Away B.S.,Para. 6,Found supporting evidence:,Two other deaths,were linked to B. S. outbreak,Annou
15、nced(with certainty):,polluted river,carried,the virus,A woman,like, had water delivered,After drinking,She & daughter,died,In another part of London,Find supporting evidence,AwayPara. 6Found supporting e,instructed,Para. 7,suggest,To prevent this happening again,The source of water supplies,Be exam
16、ined,Water companies,Expose people to polluted water,John Snow Defeated “King Cholera”,Draw a conclusion,instructedPara. 7suggestTo pre,What should we pay attention to in our daily life in order not to get infected with cholera?,Discussion,What should we pay attention t,Drink boiled water,What shoul
17、d we pay attention to in our daily life in order not to get infected with cholera?,Wash hands often,Keep away from flies,Choose fresh sea food,Keep the kitchen clean,Discussion,Cook raw food thoroughly,Dispose rubbish properly.,Drink boiled waterWhat should,The passage is written as a report of an e
18、xperiment andthere are 7 steps. What are they?,1.Find a problem:(发现问题)2.Make up a question:(形成研究主题)3.Think of a method:(找出研究方法)4.Collect results:(收集材料)5.Analyse results:(分析材料)6.Find supporting evidence:(寻找支持性证据)7.Draw a conclusion:(得出结论),Exercise,The passage is written as a re,Fill in the blanks: Jo
19、hn 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 dec
20、ided that the polluted water carried cholera. He suggested that the _ of all water supply be and new methods of _ with polluted water be found. Finally, “King Cholera” was defeated.,doctor,19th,cause,defeat,broke,marked,pump,source,examined,dealing,(in 5 minutes),Fill in the blank,1. Surf the intern
21、et to find out: What should we pay attention to in our daily life to prevent ourselves from getting infected with all these infectious diseases?2. Write down the important words and phrases in your exercise books.3. Underline the difficult sentences that you cannot understand in the passage.,Homework,1. Surf the internet to find o,Thank You!,Thank You!,
