1、授课时间：11月7日授课教师：蒋阳教学目标：经过本课学习，学生能够：1.获取梳理文中有关 John Snow 本人和他调查并阻止霍乱蔓延的事实性信息。；2.阅读 John Snow 探究霍乱病源的记叙文，结合 John Snow 的研究；过程梳理科学研究的基本步骤，思考 John 身上所体现的科学精神品质；3.能够概括文本内容。教学重点：正确理解并准确找出文中的科学研究基本步骤；教学难点：引导学生寻找科学研究基本步骤的关键词组或句子。Unit 1 Science and ScientistsLesson 1 Reading and Thinking(1)1.What can you see i
2、n the photo?Two girls are conducting an experiment in a school science laboratory,probably to test a theory,verify results,collect data,or develop skills needed in scientific research.2.What qualities do Einstein and Infeld think a scientist should have?To solve a scientific problem,one not only req
3、uires some degree of technical skill but also needs the ability to ask questions and to see things in a new way.To raise new questions,new possibilities,to regard old problems from a new angle,requires creative imagination and marks real advance in science.-Albert Einstein and Leopold Infeld Other q
4、ualities:hard-working,patient,passionate,enthusiastic,devoted.Learning Objectives1.understand the importance of a questioning mind by analyzing John Snows scientific spirits.2.understand how John Snow defeated“King Cholera”by finding stages of scientific research.3.summarize the text after catching
5、details by scanning and skimming and reviewing its main idea.What disease can you think of when you look at these pictures?COVID-19 Besides coronavirus,what other kinds of epidemics（流行病）（流行病）do you know?Bird-flu malaria plague（鼠疫）（鼠疫）Ebola Smallpox（天花）（天花）CholeraReading and Thinkingon Page 2John Sno
6、w Defeats“King Cholera”John Snow Defeated“King Cholera”What is Cholera?Who is John Snow?How did he defeat Colera?What will be talked about from the title?Cholera was one of the most feared diseases in the world.What is cholera?What harm does cholera do to people?Why is it called“King Cholera”?Choler
7、a causes severe diarrhoea(腹泻),dehydration(脱水)and even death.Because it was so powerful that it killed millions of people during one outbreak alone and it causes other deadly illnesses.What is cholera?Who is John Snow?(Para.1)A young British who even Queen Victoria when she gave birth.He had a desire
8、 to .once and for all.doctorattended todestroy choleratake care of/look afterThe following are seven steps of scientific research.What order would you like to put them in?(Activity 1 on page 2)analyze the results ask a question draw a conclusion collect data find a problem find supporting evidence t
9、hink of a methodHow did John Snow defeat“King Cholera”?How:Research StepsStep 1 It was believed cholera was caused by or germs in _.How:Research StepsStep 1It was believed cholera was caused by or germs in _.bad airfood or waterfind a problemStep 2Snow was determined to find out .How:Research StepsS
10、tep 1It was believed cholera was caused by or germs in _.food or waterfind a problemStep 2Snow was determined to find out .why the outbreak was so severe in two particular streets ask a questionStep 3Snow the places where the people who had lived.marked on a mapdiedthink of a method(Para.3)Watch a v
11、ideo about John Snow and the Cholera.BROAD STREETWhat kind of map is it?Its Snows cholera map.What does“”mean?It means one death.What does“PH”mean?It means public house,a house such as bar or pub where alcoholic drinks are sold to the public.What does 30,31,.refer to?They refer to numbers of houses.
12、Step 4 The number of deaths in different households was recorded.collect data图片来源于网络multiple deaths happened here.No death happened here.The water from the pump was to blame.Public houseClue:free beer from public houseadj.数数量多的量多的Step 5 Multiple deaths occurred near the in Broad Street,while some pe
13、ople who _ drunk the water from the pump,lived.analyze the resultspumphadntStep 6find supporting evidence图片来源于网络Step 7draw a conclusionWhat is the result of John Snows research?The pump water carried cholera germs,the handle of the pump was removed,and the disease was stopped in its tracks.handle(Pa
14、ra.3)Check your order(Activity 1 on page 2)analyze the results ask a question draw a conclusion collect data find a problem find supporting evidence think of a method6543217 Challenge your short memoryRead paragraph 2&3 again,close your book,and complete the chart below.(Activity 3&4 on page 3)airfo
15、od or watermarked on a mapdiedwater pumphadnt drinking water from the pumpcholera germshandleairfood or watermarked on a mapdiedwater pumphadnt drinking water from the pumpcholera germshandleMatch the following headers with the letters(A-E)from the chart below.1 conclusion .2 evidence .3 process .4
16、solution .5 theories .AEBCD What caused the outbreak of cholera in London in 1854?What contributions did John Snow make to science?The cholera was caused by the water which came from the River Thames and had been infected by waste.(Para.4)(Para.5)Fill in the blanks according to the text.In the early
17、 19th century,an outbreak of cholera hit Europe,_(cause)millions of deaths.Seeing this,John Snow became frustrated because no one knew how _(prevent)or treat cholera.At that time,doctors had two theories to explain how cholera spread.One was that bad air caused the disease and another was that chole
18、ra was caused by germs in food or water.John discovered that in two particular street _ cholera outbreak was _ severe that over 500 people died in ten days.Through his serious _(investigate),he found it was the pump water in Broad Street _ resulted in the disease.Therefore,he had the handle of the p
19、ump _(remove).causingto preventthesoinvestigationthatremovedIt turned out that the water from the pump _(infect)by waste.Through Snows tireless efforts,water companies began to sell clean water,and the threat of cholera around the world saw _ substantial decrease.Snow transformed the way _ scientist
20、s study diseases.For this reason,he is considered the father of modern epidemiology.Fill in the blanks according to the text.had been infectedthat/in whichaHomework:summarizeYour friend Jack is interested in John Snow defeats“King Cholera”.Please write a summary(about 80 words)of the passage for him
21、.p What is cholera?p Who is John Snow?p How did John Snow defeat“King Cholera”?p What contributions did John Snow make to science?ReviewCholera,causing death and other severe illnesses,used to be one of the most scared diseases in the world,until a young British doctor,never losing his desire to def
22、eat cholera,showed how it could be overcome.At first,it was believed cholera was caused by bad air or germs in food or water.Snow subscribed to the latter.When an outbreak struck London in 1854,Snow determined to find out why the outbreak was so severe in two particular streets.Then Snow marked on a
23、 map the places where the people who died had lived.On the map the number of deaths in different households was recorded and multiple deaths occurred near the pump in Broad Street,while people who hadnt drunk the water from the pump,lived.Whats more,a woman and her daughter had died of cholera becau
24、se they had the water delivered to their house after moving away.As a result,it was proved that the pump water carried cholera germs and the handle was removed.Consequently,the truth was that the water which came from the River Thames had been infected by waste.Thanks to Snows tireless efforts,the t
25、hreat of cholera dropped substantially,people now know how to protect themselves from getting cholera.Snow changed the way scientists study diseases so he is regarded as the father of modern epidemiology.One sampleHow to write a summaryTip 1 Analyze the structureTip 2 Find topic sentences and key ph
26、rases Tip 3 Replace the words with similar expressionsTip 4 Use proper linking wordsTip 1 Analyze the structureWho&WhatHow to defeatTruthAchievementsPlease divide the passgae into four parts.Tip 2 Find topic sentences and key phrases Part 1(Para.1)Cholera,causing death and other severe illnesses,use
27、d to be one of the most feared diseases in the world,until a young British doctor who never lost his desire to destroy cholera showed how it could be overcome.Tip 3 Replace the words with similar expressionsparticipial phrases(分词短语)attributive clause(定语从句)Tip 2 Find topic sentences and key phrases P
28、art 1(Para.1)Cholera,causing death and other severe illnesses,used to be one of the most feared diseases in the world,until a young British doctor who never lost his desire to destroy cholera showed how it could be overcome.Tip 3 Replace the words with similar expressions Cholera,causing death and o
29、ther severe illnesses,used to be one of the most scared diseases in the world,until a young British doctor never losing his desire to defeat cholera showed how it could be overcome.Part 2(Para.2-3)First.Second.Third.At last.At first.Then.Whats more.Moreover.As a result.Tip 4 Use proper linking words
30、Part 2(Para.2-3)At first,It was believed cholera was caused by bad air or germs in food or water.Snow subscribed to the latter.When an outbreak hit London in 1854,Snow determined to find out why the outbreak was so severe in two particular streets.Then Snow marked on a map the places where the peopl
31、e who died had lived.On the map the number of deaths in different households was recorded and multiple deaths occurred near the pump in Broad Street,while people who hadnt drunk the water from the pump lived.Whats more,a woman and her daughter had died of cholera because they had the water delivered
32、 to their house after moving away.As a result,it was proved that the pump water carried cholera germs and the handle was removed.Part 3 The truth was that the water which came from the River Thames had been infected by waste.Part 4 Thanks to Snows tireless efforts,the threat of cholera dropped subst
33、antially,and people now know how to protect themselves from getting cholera.Snow changed the way scientists study diseases so he is regarded as the father of modern epidemiology.Tip 3 Replace the words with similar expressions Tip 4 Use proper linking wordsPracticeTip 2 Find topic sentences and key
34、phrases(Para.4)(Para.5)Cholera,causing death and other severe illnesses,used to be one of the most scared diseases in the world,until a young British doctor,never losing his desire to defeat cholera,showed how it could be overcome.At first,it was believed cholera was caused by bad air or germs in fo
35、od or water.Snow subscribed to the latter.When an outbreak struck London in 1854,Snow determined to find out why the outbreak was so severe in two particular streets.Then Snow marked on a map the places where the people who died had lived.On the map the number of deaths in different households was r
36、ecorded and multiple deaths occurred near the pump in Broad Street,while people who hadnt drunk the water from the pump lived.Whats more,a woman and her daughter had died of cholera because they had the water delivered to their house after moving away.As a result,it was proved that the pump water ca
37、rried cholera germs and the handle was removed.Consequently,the truth was that the water which came from the River Thames had been infected by waste.Thanks to Snows tireless efforts,the threat of cholera dropped substantially,people now know how to protect themselves from getting cholera.Snow changed the way scientists study diseases so he is regarded as the father of modern epidemiology.One sampleThank you for listening!
