人教版英语必修五第一单元阅读课ppt课件.ppt

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1、Unit 1 Great scientists,Warming Up andReading,Who are they?,Guessing game,1.Who is he?,He has made a famous kite experiment.,He learned a lot from it and invented lightningrod(避雷针).,He is ,Benjamin Franklin,Never leave that until tomorrow, which you can do today.,今日事,今日毕.,2.Who is he?,He is called t

2、he greatest scientist in the 20th century.,He is famous for the Theory of Relativity.,He is ,Albert Einstein,Imagination is more important than knowledge,想象力比知识更重要.,imaginative,3.Who is he?,He invented electric bulbs.,He made more than 1,000 inventions duringhis life.,He is ,Thomas Alva Edison,Thoma

3、s Alva Edison,Genius is one percent inspiration and ninety-nine percent perspiration.,天才就是百分之九十九的汗水加上百分之一的灵感.,4.Who is she?,She is a woman scientist.,She discovered radium(镭)and polonium(钋).,In her life, she won the Nobel Prize twice.,She is ,Marie Curie,Nothing in life is to be feared. It is only t

4、o be understood.,生活中没有什么可怕的东西,只有需要理解的东西.,The Only person ever to receive two Nobel Prizes , one in physics and the other in chemistry.,5. Which scientists discovered that objects in water are lifted up by a force that helps them float?,Archimedes阿基米德Archimedes, Ancient Greek (287-212 BC), a mathemat

5、ician.,Give me a place to stand on, and I can move the earth.,6 . Who wrote a book explaining how animals and plants developed as the environment changed?,Charles Darwin达尔文Britain (1808-1882).,“The Origin of Species”,7 . Who used peas to show how physical characteristics are passed from parents to t

6、heir children?,Gregore Mendel(1822-1884) Czech (捷克),Inheritance遗传,8 . Who invented the way of giving electricity to everybody in large cities?,Thomas Edison 爱迪生Thomas Edison, American, an inventor. He invented the lights and the gramophone.,Phonograph 留声机,bulb,Motion Pictures,9 . Who was the painter

7、 that studied dead bodies to improve his painting of people?,Leonardo da Vinci 达芬奇 Italian, an artist.,The Last Supper,10. Who invented a lamp to keep miners safe underground?,Humphry Davy 汉弗莱 戴维Sir Humphry Davy, British, an inventor and chemist.,11. Who invented the earliest instrument to tell peop

8、le where earthquakes happened?,张衡Zhang Heng, ancient China, an inventor.,12. Who put forward a theory about black holes?,Stephen Hawking 斯帝芬 霍金British, a physicist.,Draw a conclusion,They all.,made a great contribution.made great achievements.succeeded in their scientific career.overcome many diffic

9、ulties.,What did they have in common?,Brainstorming,Do you know how to prove a new idea in scientific research? Discuss in small groups the stages in setting out a new scientific idea. What order would you put them in?,Pre-reading,Please put the 7 stages in right order according to the passage.,The

10、passage is written as a report of an experiment and there are 7 steps:,1.Find a problem:(发现问题)2.Make up a question:(形成研究主题)3.Think of a method:(找出研究方法)4.Collect results:(收集材料)5.Analyse results:(分析材料)6. Find supporting evidence(找到有力证据)7.Draw a conclusion:(得出结论),What infectious diseases do you know?,I

11、nfectious diseases can be spread to other people. They have an unknown cause and need public healthcare to solve them.,It is a kind of terrible disease caused by drinking dirty water and it caused a lot of deaths in the old times and it was very difficult to defeat.,What do you know about cholera?,R

12、eading,John Snow Defeats “King Cholera”,John Snow,Do you know this person?,A well-known doctor in the 19th century in London. A legendary figure in epidemiologyep,di:mi:ldi:(流行病学) and anesthesiology (麻醉学) nis,izildi,John Snow ( 1813 1858),Whats the main idea of the passage?A. John Snow was a well-kn

13、own doctor in London.B. The cause of Cholera was polluted water.C. The source of all drinking water should be examined.D. How John Snow collected, analyzed data and found the cause of the disease and solved it .,Fast reading,Read the passage and number these events in the order that they happened.,_

14、 John Snow began to test two theories._ An outbreak of cholera hit London n 1854._ John Snow marked the deaths on a map._ He announced that the water carried the disease._ John Snow investigated two streets where the outbreak was very severe._ King Cholera was defeated._ He found that most of the de

15、aths were near a water pump._ He had the handle removed from the water pump.,1,2,3,4,5,6,7,8,I. To prove a new scientific idea, seven stages are needed. Read the text (P2-3) carefully and fill in the blanks.,Careful reading,What caused cholera?,Which theory is correct?,Analyse the water to see if th

16、at is the cause of cholera.,Find other evidence to confirm your conclusion.,The water is to blame. The source of all drinking water should be examined so that it is safe.,Collect data on those who were ill or died and where they got their water.,Plot information on a map to find out where people die

17、d or did not die.,cause,absorbed,multiplied,cure,map,prove,source,Broad Street,Many deaths happened here.,No death happened here.,The water from the pump was to blame.,Public house,drinking the water,Polluted water,examined,extra evidence: A woman and her daughter who lived far away but drank the wa

18、ter also died.,.Fill in the blanks according to the text.John Snow，a wellknown doctor in London，became 1._(inspire)when he thought about helping ordinary people 2._ (expose) to cholera，a 3._(die)disease of its day. Many thousands of people died 4._ there was an outbreak because no one knew the cause

19、 of it.John wanted to help solve the problem. He got interested in two theories 5._ (explain) how cholera killed people.He believed in the second theory,inspired,exposed,deadly,whenever,explaining,6._ suggested that people7._(absorb) the disease with their meals. In 1854，when another outbreak hit Lo

20、ndon，he was ready to test 8._ two theories.9._ the help of the map he made，he got a valuable clue about the cause of the disease and was able to announce that the water was 10._(blame)“King Cholera” was finally defeated.,that,absorbed,the,With,to blame,1. John Snow believed Idea 2 was right. How did

21、 he finally prove it? He found an outbreak that was clearly related to cholera. He collected, analyzed the data and found the cause of the disease and solved it .,Group Discussion,2. Do you think John Snow would have solved this problem without the map?No. I dont think so. The map helped John Snow o

22、rganize his ideas. Yes, I think he would. But he would spend more time in testing the two theories and it would be more difficult for him to look into the cause of cholera.,3. Cholera is a 19th century disease. What disease do you think is similar to cholera today? Two diseases, which are similar to

23、day, are SARS and AIDS because they are both serious, have an unknown cause and need public health care to solve them.,Avoid raw salads and vegetables. Avoid food and drinks from street vendors.,Boil it, cook it, peel it, or forget it.,Read the text carefully. Retell the passage with your own wordsRemember the new words and phrases,Homework,Thank you!,