Unit 1 Reading and thinking （ppt课件） (3)-2022新人教版（2019）《高中英语》选择性必修第二册.pptx

1、The secientists that we knowThere are some great scientific achievements that have changed the world.Name some famous scientists you know and tell something about them.Yuan LongpingEinsteinThe secientists that we knowTu YouyouShe is the first Chinese Nobel winner in physiology or medicine and the fi

2、rst female citizen of China to receive a Nobel Prize.Zhong NanshanHe played an important role in fighting against Covid-19 and won the Medal of Republic(共和国勋章）共和国勋章）in 2020.Who is he?He put forward a theory about black holes.Stephen HawkingWhat qualities do you need to be a scientis?Qualitiespassion

3、 creativitydevotionselflessness hard workCholeraloss of liquid(缺水)severe vomiting(呕吐)diarrhoea(腹泻)It begins in the stomach and a severe case can lead to death without immediate treatment.Key words of each paragraph:draw a conclusionthink of a methodask a questionfind a problemtake measures5 stages o

4、f scientific researches in right orderWhat will be talked about from the title?John Snow Defeats“King Cholera”Who?How?What?While-reading The text is mainly about _ and _ he defeated king cholera.howJohn SnowLook at the picture,the title and the map,guess what the content of the text is.Then skim it

5、quickly to see if you are right.While-reading A map of Broad Street-”Cholera Map”A map of Broad Street-”Cholera Map”Read Para 3 carefully.What method did Snow use?1.Which houses had more than 4 deaths and which had no death in Broad Street?2.What did Snow conclude?Multiple deaths happened here.No de

6、ath happened here.Finding Evidencescan the text quickly and complete the form.Paragraph(s)Main Idea12-345What?Who?How?The truthResults and significanceCholera hit London in 1854.John Snow decieded to destroy itJohn Snow began to test the theory,using statistics and maps.The water carried the disease

7、.King Cholera was defeated.Snow thransformed the way scientists study dseases.Para 1Cholera used to be one of the most feared diseases in the world,until aBritish doctor,John Snow,showed how it could be overcome.This illness causes severe sv严重 diarrhoea dar腹泻,dehydrationdihadren脱水,and even death.In

8、the early 19th century,when an outbreak of cholera hit Europe,millions of people died from the disease.As a young doctor,John Snow became frustrated because no one knew how to prevent or treat cholera.In time随着时间的推移,he rose to become a famous doctor,and even attended to Queen Victoria when she gave

9、birth.However,he never lost his desire愿望 to destroy cholera once and for all彻底.霍乱曾经是世界上最可怕的疾病之一。英国医生约翰斯诺(John Snow)向我们展示了如何战胜它的。这种疾病会导致严重腹泻、脱水，甚至死亡。19世纪初，欧洲爆发霍乱，数百万人死于此病。作为一名年轻的医生，约翰斯诺曾因为没有人知道如何预防或治疗霍乱而感到沮丧。随着时间的推移，他成为了一名著名的医生，甚至在维多利亚女王分娩时照顾她。然而，他从未失去彻底消灭霍乱的愿望。Para 1 A few month ago,a drought hit Si

10、chuan,China.The earthquake hit the southeast of the country,causing 6 deaths.Massive explosions have hit Chinas northern city of Tianjin,killing at least 50 and injuring 500 people.Para 1 She has a strong desire to study English.I have a strong desire to buy a computer.He has a strong desire to go a

11、broad.What?Its one of _ in the world,because it causes _.When?_Where?_What results?_the most feared diseasessevere diarrhoea,dehydration and even deathIn the early 19th centuryEuropeMillions of people died from the diseaseCholeraRead the 1st paragraph quickly and fill in the mind map.Find the proble

12、mPara 2 In general,doctors in those days had two contradictory,kntrdktri相互矛盾的 theories to explain how cholera spread.One theory was that bad air caused the disease.Another was that cholera was caused by an infection nfkn感染 from germs in food or water.Snow subscribed sbskrab赞同 to the second theory.It

13、 was correct,but he still needed proof pruf证据.Consequently,when an outbreakof cholera hit London in I854,Show began to investigate.He discovered that in two particular streets the cholera outbreak was so severe that more than 500 people died in ten days.He was determined to find out why.总的来说，当时的医生有两

14、种相互矛盾的理论来解释霍乱是如何传播的。一种理论认为是糟糕的空气导致了这种疾病。另一种说法是，霍乱是由食物或水中的细菌感染引起的。斯诺赞同第二种理论。这是正确的，但他仍然需要证据。因此，当854年伦敦疫情爆发时，Show开始调查。他发现，在两条特别的街道上，霍乱爆发得非常严重，10天内就有500多人死亡。他决心找出原因。Para 2She missed the train.Consequently she was late for work.She was a bright and eager student.Consequently,she did well in school.Theyve

15、 increased the number of staff.Consequently the service is better.Two theories The first theory bad air caused the diseaseCholera was caused by an infection from the germs in food or water.He needed proof.The second theory Read the 2nd paragraph carefully and find out the two theories.Ask a question

16、Para 3_1Snow began by marking on a map the exact places where all those who died had lived.There were multiple mltpl=many deaths near the water pump in Broad Street(especially house numbers I6,37.38,and 40).However,some households hashld家庭(such as 20 and 21 Broad Street,and 8 and 9 Cambridge Street)

17、had had no deaths.These people worked in the pub at 7 Cambridge Street.They had been given free beer.and so had not drunk the water from the pump.Snow suspected sspekt怀疑 that the water pump was to blame blem归咎；责任.斯诺首先在地图上标出死者生前的确切居住地。宽街水泵附近有多人死亡(尤其是I6、37号门牌号。38、40)。然而，一些家庭(如布罗德街20号和21号以及剑桥街8号和9号)没有死

18、亡病例。这些人在剑桥街7号的酒吧工作。他们得到了免费的啤酒。所以没有喝水泵里的水。斯诺怀疑水泵是罪魁祸首。Para 3责怪Who is to blame for the mistake?Lets forget about who was more to blame its all past history.You can blame me.You can blame my father as well.Para 3 What is more,in another part of London,a woman and her daughter had died of cholera after

19、moving away from Broad Street.It seemed that the woman liked the water from the pump so much that she had it delivered to her house every day.As a result of this evidence,John Snow was able to announce that the pump water carried cholera germs.Accordingly,he had the handle hndl把手 of the pump removed

20、 so that it could not be used.Through this intervention ntvnn干预,the disease was stopped in its tracks蔓延.更有甚者，在伦敦的另一个地方，一个妇女和她的女儿在搬离布罗德街后死于霍乱。这个女人似乎非常喜欢水泵里的水，所以她每天都叫人把水送到家里。有了这些证据，约翰斯诺就能宣布水泵里的水携带了霍乱病菌。因此，他把水泵的把手取了下来，使它不能使用。通过这种干预，遏止了疾病的蔓延。Para 3As a result of his hard work,he passed the exam easilyHe

21、 was late as a result of the snow.The train was delayed as the(a)result of the heavy rain.Para 4The truth was that the water from the Broad Street pump had been infected by waste废弃物.Moreover,Snow was later able to show a link lk有关 between other cases of cholera and the different water companies in L

22、ondon.Some companies sold water from the River Thames that was polluted by raw r未经处理的 waste.The people who drank this water were much more likely to get cholera than those who drank pure pj纯 or boiled water.事实是宽街水泵的水被废弃物污染了。此外，斯诺后来还证明了其他霍乱病例与伦敦自来水公司有关。一些公司出售的来自泰晤士河的未经处理的废弃物污染的水。喝这水的人，比喝纯净水或白开水的人，更容易

23、感染霍乱。What caused the outbreak of cholera in London in1854?The water which came from the River Thames and Para 4had been infected by waste.2.How can we prevent cholera?By drinking water,and eating pure or boiledclean food.Para 5Through Snows tireless efforts,water companies began to sell clean water,

24、and the threat of cholera around the world saw a substantial sbstnl 大幅 decrease dkris减少.However,cholera is still a problem.Each year,millions of people around the world get cholera and many die from it.Fortunately,we now know how to prevent cholera,thanks to the work of John Snow.Moreover,in his use

25、 of maps and statistics sttstks统计数据,Snow transformed trnsfrm=change the way scientists study diseases.For this reason,Snow is considered the father of modem epidemiology,epdimld 流行病学.通过斯诺不懈的努力，饮用水公司开始销售洁净的水，世界各地的霍乱威胁也大幅减少。然而，霍乱仍然是问题。每年，全世界有数百万人感染霍乱，许多人因此死亡。幸运的是，由于约翰的工作，我们现在知道如何预防霍乱。此外，斯诺利用地图和统计数据改变了

26、科学家研究疾病的方式。因此，斯诺被认为是现代流行病学之父。Para 5thanks to多亏了Thanks to your help,I worked out a math problem.Thanks to his effort,it is more successful than we have expected.Thanks to good organization and hard work,the concert was a great success.He transformed the way scientists study diseases by 3.Was cholera

27、destroyed completely?No.4.What contributions did John Snow make to science?He helped people know how to prevent cholera.using maps and statistics.Para 5Read Para 2 and 3 again to complete the chart.It was believed that cholera was caused by _ or germs in _.The pump water carried _.Many deaths occurr

28、ed near the _ in Broad Street.Some people who lived near the pump worked in the pub and _ drunk the water from the pump,and lived.A woman and her daughter had died after _,because she had the water_ every day.Snow began by _ the places where people _.Snow had the handle of the pump _.ABCDEbad airfoo

29、d or watermarking on the mapdied had livedwater pumphad notmoving away from Broad Streetdelivered to her housecholera germsremovedSupporting evidenceF语法填空语法填空In the early 19th century,1._ a severe cholera hit Europe，John Snow became 2._(frustrate)because no one knew how to prevent or treat cholera.3

30、._ he never lost his desire to destroy cholera once and for all.Snow subscribed to the theory that cholera 4._ (cause)by an 5._ (infect)from germs in food or water.whenfrustrated Butwas causedinfection语法填空语法填空Snow began by 6._(mark)on a map the exact places where all those who died had lived.As 7._

31、result，John Snow was able to announce that the pump water 8._(carry)cholera germs.9._ (according)，he had the handle of the pump 10._(remove)so that it could not be used.Through this intervention，the disease was stopped in its tracks.markingacarriedAccordinglyremoved概要写作根据课本P2P3内容写一篇60词左右的内容概要。参考范文:J

32、ohn Snow,who is considered the father of modern epidemiology,were determined to defeat cholera which was one of the most feared diseases in the world in the 19th century.(要点1)When cholera broke out in London in 1854,he found out the cause of the disease by using maps and statistics.(要点2)Thanks to hi

33、s effort,the threat of cholera around the world greatly decreased.(要点3)Father of hybrid ricekeep people away from hungerDespite the danger of infection,devote to the research of COVID-19Discussion What qualities and scientific spirits do they have in common?DiscussionBesides cholera,what other kind

34、of infectious diseases do you know?How can we protect ourselves from them?Exercise regularly every day.Keep away from the crowded places.Wash hands frequently.Wear a mask when going out.Choose fresh food.Drink boiled and clean water.Deal with rubbish properly.DiscussionDo the exercises in your workbook.