廣東地區(qū)高中英語必修5 Unit1 Great scientist period3課件

1、Unit 1 Great Scientists2021/8/8 星期日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 Darwin2021/8/8 星期日2Who invented the first steam engine?Thomas

2、NewcomenWho used peas to show how physical characteristics are passed form parents to their children?Gregor Mendel2021/8/8 星期日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 people?

3、Maries CurieThomas EdisonLeonardo da Vinci2021/8/8 星期日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 Hawking2021/8/8 星期日5Do you know? 發(fā)明蒸汽

4、機(jī)的并不是瓦特，他是改進(jìn)紐可門的蒸氣機(jī)并發(fā)明出雙動(dòng)作，使世界進(jìn)入“蒸氣時(shí)代”的，使他成為第一次工業(yè)革命中的名氣最大的發(fā)明家。2021/8/8 星期日61865年，修士孟德爾在一個(gè)會(huì)議上報(bào)告了他通過長(zhǎng)達(dá)八年的實(shí)驗(yàn)研究和他所統(tǒng)計(jì)的多達(dá)兩萬一千多件樣本的實(shí)驗(yàn)結(jié)果，利用豌豆實(shí)驗(yàn)發(fā)現(xiàn)了植物的遺傳規(guī)律，但是孟道爾的理論超出了當(dāng)時(shí)人們能夠接受的水平。35年后，三國(guó)科學(xué)家?guī)缀跏峭瑫r(shí)發(fā)現(xiàn)了植物遺傳的規(guī)律。而當(dāng)他們準(zhǔn)備發(fā)表論文，去查閱文獻(xiàn)時(shí)，又不約而同地發(fā)現(xiàn)，早在35年前孟德爾就發(fā)現(xiàn)這樣的規(guī)律了。他們?nèi)齻€(gè)人在發(fā)表論文時(shí)，都提到了孟德爾的文章，稱自己的工作是證實(shí)了孟德爾的定律。這就是生物學(xué)史上的有名的“孟德爾定律的

5、再發(fā)現(xiàn)”。2021/8/8 星期日7英國(guó)化學(xué)家、詩人漢弗萊戴維。1778年出生。他小時(shí)聰明、淘氣，不喜歡讀書，喜歡玩樂。他不到20歲時(shí)，父親去世。為了養(yǎng)家糊口，他到當(dāng)?shù)匾晃会t(yī)生那當(dāng)學(xué)徒，從此接觸并喜歡上化學(xué)，因?yàn)橛X得自己知識(shí)淺薄，他就自訂計(jì)劃發(fā)奮用功，憑著他的天資和勤奮，很快掌握了七種語言和不少科學(xué)知識(shí)，并最終成為了英國(guó)皇家學(xué)會(huì)的主席。1798年戴維的名聲隨著他對(duì)笑氣的發(fā)現(xiàn)而傳遍了整個(gè)英國(guó)。他還帶病專門研究火焰，發(fā)明了礦用安全燈（1816），這種燈一直到今天仍叫戴維燈，曾挽救了成千上萬名礦工的生命。2021/8/8 星期日8Do you know what did this map was u

6、sed for in 1854?Finding out the cause of Cholera.2021/8/8 星期日9Who defeats “King Cholera“?What happened in 1854?How many people died in 10 days?Why is there no death at No. 20 and 21 Broad Street as well as at No. 8 and 9 Cambridge Street?John SnowCholera outbreak hit London.500These families had not

7、 drunk the water from the Broad Street pump.Task 1:Skim and Scan2021/8/8 星期日10Task 2: Read and answer1 Why couldnt the cholera be under control at first?2 Which 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.

8、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 prevent the cholera from spreading again, what did John Snow do?2021/8/8 星期日111 Why couldnt the cholera be under control at first?2 Which theor

9、y did John Snow believe in?Neither its cause, not its cure was understood.People absorbed cholera into their bodies with their meals.2021/8/8 星期日123 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

10、 Street and Cambridge Street C. separating those who suffered cholera from those who didnt D. both A and B2021/8/8 星期日134 To prevent the cholera from spreading again, what did John Snow do? Suggested that the source of all water supplies be examine. Suggested that new methods of dealing with pollute

11、d water be found. Instructed the water companies not to expose people to the polluted water anymore.2021/8/8 星期日14Mind Map of the 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: Whi

12、ch is right?Paragraph 3-5: Study of the breakout in 1854 2021/8/8 星期日15Paragraph 3: Study of the breakout in 1854 Think of a method: Test 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

13、breakout in 1854 Analyse the result: Find the resource of the water Repeat if necessary: Find more evidence.Draw a conclusion: Cholera was spread by germ Polluted water carried cholera2021/8/8 星期日16Paragraph 6: Prevention of Cholera John Snow defeat King Cholera2021/8/8 星期日172021/8/8 星期日182021/8/8 星

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