Unit 1 Reading and Thinking 课件ppt -（2023新教材）高中英语人教版（2019）选择性必修第二册 .pptx

1、授课时间：授课教师：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 in the p

2、hoto?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 requires s

3、ome 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 qualitie

4、s: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 details

5、 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 Snow Defea

6、ts“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”?Cholera cause

7、s 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 to .on

8、ce 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 think of

9、 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 StepsStep 1It

10、 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 video ab

11、out 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.Step 4

12、The number of deaths in different households was recorded.collect datamultiple 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 people who _ dru

13、nk the water from the pump,lived.analyze the resultspumphadntStep 6find supporting evidenceStep 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(Para.3)Check your order

14、(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)airfood or watermarked on

15、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 solution .5 theories

16、.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 19th century,an outb

17、reak 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 cholera was caused by germ

18、s 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 pump _(remove).causing

19、to 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 _ scientists study diseases.For

20、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.p What is cholera?p

21、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 defeat cholera,showed ho

22、w 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 map the places where

23、 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 because they had the water

24、 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 threat of cholera drop

25、ped 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 phrases Tip 3 Replace t

26、he 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,used to be one of the mo

27、st 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 Part 1(Para.1)Cholera,

28、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 other severe illnesses

29、,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 wordsPart 2(Para.2-3)At fi

30、rst,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 people who died had lived.

31、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 to their house after

32、 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 substantially,and people n

33、ow 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 phrases(Para.4)(Para.

34、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 food or water.Snow subs

35、cribed 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 recorded and multiple

36、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 carried cholera germs a

37、nd 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!