人教版英语必修五unit-1-reading.ppt

1、Reading,Unit 1 Great Scientists,Who are they?,Guessing game,Lets have a competition!,Who is he?,He invented electric bulbs.,He made more than 1,000 inventions during his life.,He is ,Thomas Edison,Thomas Alva Edison,Genius is one percent inspiration and ninety-nine percent perspiration.,天才就是百分之九十九的汗

2、水加上百分之一的灵感.,Who is he?,He is called the 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,Who is she?,She is a woman scientist.,She discovered radium(镭)and polonium(钋).,In her

3、life, she won the Nobel Prize twice.,She is ,Marie Curie,Nothing in life is to be feared. It is only to be understood.,生活中没有什么可怕的东西,只有需要理解的东西.,Who is he?,He made the first telescope in the world.,His observations show that the earth moves around the sun.,He is ,Galileo Galilei,You cannot teach a man

4、 anything. You can only help him find it within himself.,你不可能把一切都教给一个人， 你只能帮助他从内心去发现（和了解）事物。,1. Which scientist discovered that objects in water are lifted up by a force that helps them float?,Archimedes,Its,2. Who wrote a book explaining how animals and plants developed as the environment changed?,

5、Charles Darwin,3. Who invented the first steam engine?,steam engine,Its used for taking water out of mines.,James Watt,4. Who used peas to show how physical characteristics are passed from parents to their children?,Gregor Mendel,Its used in the treatment of some diseases, especially cancer.,radium,

6、Whats this?,5. Who discovered radium?,Marie Curie,6. Who invented the way of giving electricity to everybody in large cities?,Thomas Edison,7. Who was the painter that studied dead bodies to improve his painting of people?,Leonardo da vinci,8. Who invented a lamp to keep miners safe underground?,Sir

7、 Humphry Davy,9. Who invented the earliest instrument to tell people where earthquakes happened?,Zhang Heng,10. Who put forward a theory about black holes?,Draw a conclusion Think of a method Collect results Make up a question Find a problem Analyse the results Find supporting evidence,What order do

8、 you put them in? Why?,Think of a method,Analyse results,Make up a question,Find a problem,Find supproting evidence Collect the result,Draw a conclusion,What do you know about infectious diseases?,a kind of infectious diseases,What do you know about cholera?,a serious infection of the bowels caused

9、by drinking infected water or eating infected food, causing diarrhoea(腹泻), vomiting(呕吐) and often death.,霍乱,Germany,Great Britain,Death of first cholera case in London during the 1848-49 epidemic,London,Previous cholera epidemic in Great Britain in 1831-32,The spread of cholera,Do you know what did

10、this map was used for in 1854?,Finding out the cause of Cholera.,John Snow,British ( 1813 1858) a legendary(传奇的) figure in the history of public health, epidemiology（流行病学） and anesthesiology（麻醉学）,Read the text quickly and complete the main idea of it. The text is mainly about _ _ and how he _.,John,

11、defeated cholera,Snow,Task one: skim and scan 1.Who defeats “King Cholera“? 2. What happened in 1854? 3. How many people died in 10 days?,John Snow,Cholera outbreak hit London.,500,4. Why is there no death at No. 20 and 21 Broad Street as well as at No. 8 and 9 Cambridge Street?,These families had n

12、ot drunk the water from the Broad Street pump.,A map of Broad Street,What method did he use?,Broad Street,Many deaths happened here.,No death happened here.,The water from the pump was to blame.,Public house,Draw a conclusion,Find a problem,Make up a question,Think of a method,Collect results,Analys

13、e the results,Para 1,Para 2,Para 3,Para 4,Para 5,Para 6,Match them,Analyse results,Para 7,Match the stages of scientific research with what John Snow did to solve the problem of cholera. 1. Find a problem. 2. Make a question.,He noticed two possible theories which explained how cholera spread. He wa

14、nted to face the challenge of cholera and find the cause.,3. Think of a method. 4. Collect results. 5. Analyse the results.,He found that the water came from a polluted river and cholera was spread by germs. He thought the second idea was correct and decided to prove it. He marked the death places on a map and found out many deaths occurred near the water pump.,6. Find supporting evidence