高中英语 Unit1 Great Scientists课件1 新人教必修5.ppt
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1、Unit 1 Great Scientists2021/8/11 星期三1Do you know?Who discovered that objects in water are lifted up by a force that helps them float?Who wrote a book explaining how animals and plants developed as the environment changed?ArchimedesCharles Darwin2021/8/11 星期三2Who invented the first steam engine?Thoma
2、s NewcomenWho used peas to show how physical characteristics are passed from parents to their children?Gregor Mendel2021/8/11 星期三3Who discovered radium?Who invented the way of giving electricity to everybody in large cities?Who was the painter that studied dead bodies to improve his painting of peop
3、le?Maries CurieThomas EdisonLeonardo da Vinci2021/8/11 星期三4Who invented a lamp to keep miner safe underground?Who invented the earliest instrument to tell people where earthquakes happened?Who put forward a theory about black holes?Sir Humphrey DavyZhang HengStephen Hawking2021/8/11 星期三5Who is the f
4、ather of super hybrid rice?Yuan LongpingDo you know who defeated“King Cholera”?John Snow2021/8/11 星期三6John Snow is a well-known doctor in the 19th century in London and he defeated“King Cholera”.Do you know what kind of disease is cholera?It is a kind of terrible disease caused by drinking dirty wat
5、er and it caused a lot of deaths in the old times and it was very difficult to defeat.2021/8/11 星期三7Lets get to know how Dr.John Snow defeated“King Cholera”in 1854 in London in this reading passage:John Snow Defeats“King Cholera”2021/8/11 星期三8What happened in 1854?How many people died in 10 days?Why
6、 is there no death at No.20 and 21 Broad Street as well as at No.8 and 9 Cambridge Street?Cholera outbreak hit London.500These families had not drunk the water from the Broad Street pump.Task 1:Skim and Scan2021/8/11 星期三9Task 2:Read and answer1 Why couldnt the cholera be under control at first?2 Whi
7、ch theory did John Snow believe in?3 John Snow finally proved the theory he believed by _.A.gathering information with the help of a map B.looking into the source of the water for Broad Street and Cambridge Street C.Separating those who suffered cholera from those who didnt D.Both A and B4 To preven
8、t the cholera from spreading again,what did John Snow do?2021/8/11 星期三101 Why couldnt the cholera be under control at first?2 Which theory did John Snow believe in?Neither its cause,not its cure was understood.People absorbed cholera into their bodies with their meals.2021/8/11 星期三113 John Snow fina
9、lly proved the theory he believed by _.A.gathering information with the help of a map B.looking into the source of the water for Broad Street and Cambridge Street C.separating those who suffered cholera from those who didnt D.both A and B2021/8/11 星期三124 To prevent the cholera from spreading again,w
10、hat did John Snow do?Suggested that the source of all water supplies be examine.Suggested that new methods of dealing with polluted water be found.Instructed the water companies not to expose people to the polluted water anymore.2021/8/11 星期三13John Snow Defeats“King Cholera”The passage is written as
11、 a report of an experiment and there are 7 steps:1.Find a problem:(发现问题发现问题)2.Make up a question:(形成研究主题形成研究主题)3.Think of a method:(找出研究方法找出研究方法)4.Collect results:(收集材料收集材料)5.Analyse results:(分析材料分析材料)6.Repeat if necessary:(必要时重新分析必要时重新分析)7.Draw a conclusion:(得出结论得出结论)2021/8/11 星期三14Mind Map of the
12、textJohn Snow Defeats“King Cholera”Paragraph 1:Introduction of John Snow and Cholera Paragraph 2:Two theory Find a Problem:What cause the cholera?Make a question:Which is right?Paragraph 3-5:Study of the breakout in 1854 2021/8/11 星期三15Paragraph 3:Study of the breakout in 1854 Think of a method:Test
13、 two theoryCollect the result:Mark the deathAnalyse the result:Reason for death and no deathParagraph 4:Study of the breakout in 1854 Paragraph 5:Study of the breakout in 1854 Analyse the result:Find the resource of the water Repeat if necessary:Find more evidence.Draw a conclusion:Cholera was sprea
14、d by germ Polluted water carried cholera2021/8/11 星期三16Paragraph 6:Prevention of Cholera John Snow defeat King Cholera2021/8/11 星期三17Read the passage again and finish Ex.1(Page 3).(in 8 minutes)John Snow Defeats“King Cholera”2021/8/11 星期三18Scientific Reportby John SnowThe problemThe causeIdea 1:Idea
15、 2:The methodNobody knew the cause of the serious disease of choleraa strange cloud of gas found its victimspeople absorbed the disease with mealsCollect information from the cholera outbreak to prove which theory was correct2021/8/11 星期三19The resultsIdea 1 or 2?Why?The conclusionHe found the cause
16、of cholera was the polluted waterIdea 2.Because the information showed that the dirty water carried choleraHe defeated cholera by examining the water supply and dealing with the polluted water 2021/8/11 星期三20Retell the passage according to below:John Snow was a well-known _ in London in the _ centur
17、y.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 decided that the polluted water carried cholera.He sug
18、gested that the _ of all water supply be _ and new methods of _ with polluted water be found.Finally,“King Cholera”was defeated.2021/8/11 星期三21Read the passage again and fill in the blanks:John Snow was a well-known _ in London in the _ century.He wanted to find the _ of cholera in order to _ it.In
19、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 decided that the polluted water carried cholera.He suggested that the _ of all water supply be _ and new method
20、s of _ with polluted water be found.Finally,“King Cholera”was defeated.doctor19thcausedefeatbrokemarkedpumpsourceexamineddealing (in 5 minutes)2021/8/11 星期三22Do you know?发明蒸汽机的并不是瓦特,他是改进纽可门的蒸气机并发明出双动作,使世界进入“蒸气时代”的,使他成为第一次工业革命中的名气最大的发明家。2021/8/11 星期三231865年,修士孟德尔在一个会议上报告了他通过长达八年的实验研究和他所统计的多达两万一千多件样本的
21、实验结果,利用豌豆实验发现了植物的遗传规律,但是孟道尔的理论超出了当时人们能够接受的水平。35年后,三国科学家几乎是同时发现了植物遗传的规律。而当他们准备发表论文,去查阅文献时,又不约而同地发现,早在35年前孟德尔就发现这样的规律了。他们三个人在发表论文时,都提到了孟德尔的文章,称自己的工作是证实了孟德尔的定律。这就是生物学史上的有名的“孟德尔定律的再发现”。2021/8/11 星期三24英国化学家、诗人汉弗莱戴维。1778年出生。他小时聪明、淘气,不喜欢读书,喜欢玩乐。他不到20岁时,父亲去世。为了养家糊口,他到当地一位医生那当学徒,从此接触并喜欢上化学,因为觉得自己知识浅薄,他就自订计划发
22、奋用功,凭着他的天资和勤奋,很快掌握了七种语言和不少科学知识,并最终成为了英国皇家学会的主席。1798年戴维的名声随着他对笑气的发现而传遍了整个英国。他还带病专门研究火焰,发明了矿用安全灯(1816),这种灯一直到今天仍叫戴维灯,曾挽救了成千上万名矿工的生命。2021/8/11 星期三25Language Language points points2021/8/11 星期三26Language Points Language Points 2021/8/11 星期三27Find the phrases in the passage.1、提出、提出 2、传染病、传染病3、科学研究、科学研究4、
23、得出结论、得出结论5、分析结果、分析结果6、对、对产生兴趣产生兴趣7、被传染的人、被传染的人8、信仰、信仰9、查清楚、查清楚10、调查、调查11、水源、水源12、使慢下来、使慢下来13、另外、另外14、把、把和和联系联系起来起来15、死于、死于16、毫无疑问地、毫无疑问地17、阻止、阻止做做18、处理、处理2021/8/11 星期三28put forwardinfectious diseasesscientific research draw a conclusionanalyze the resultsget interested in the affected people believe
24、 in find out 1、提出、提出 2、传染病、传染病3、科学研究、科学研究4、得出结论、得出结论5、分析结果、分析结果6、对、对产生兴趣产生兴趣7、被传染的人、被传染的人8、信仰、信仰9、查清楚、查清楚2021/8/11 星期三29look into the source of water slow down in addition linkto die of with certaintypreventfrom deal with 10、调查、调查11、水源、水源12、使慢下来、使慢下来13、另外、另外14、把、把和和联联系起来系起来15、死于、死于16、毫无疑问地、毫无疑问地17、阻
25、止、阻止做做18、处理、处理2021/8/11 星期三30 Language Points1.discover&inventdiscover v.“发现发现“,被探索或被揭示物老早就客观被探索或被揭示物老早就客观存在着存在着.Columbus discovered America in 1492.哥伦布于哥伦布于1492年发现了美洲年发现了美洲.Who discovered radium?谁发现了镭谁发现了镭?invent v.“发明发明”,指的是发明原先不存在的东西指的是发明原先不存在的东西.Who invented the steam engine?谁发明了蒸汽机谁发明了蒸汽机?2.Who
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