unit1warmingupandreading

1、Unit 1 Great scientistsScience changes our world,so do scientists.WarmingWarming UpUpWho are they?Who are they?Guessing game-He has made a famous kite experiment.-He learned a lot from it and invented lightning rod(避雷针避雷针).).Benjamin FranklinNever leave that until tomorrow, which you can do today.Wh

2、o is he?Who is he?- He is called the greatest scientist in the 20th century.- He is famous for the Theory of Relativity.Albert EinsteinImagination is more important than knowledge- He made the first telescope in the world.- His observations show that the earth moves around the sun.Galileo GalileiYou

3、 cannot teach a man anything. You can only help him find it within himself.1. Which scientists discovered that objects in water are lifted up by a force that helps them float?Archimedes Ancient Greek 287-212BC2. Who wrote a book explaining how animals and plants developed as the environment changed?

4、It is not the strongest of the species that survives, nor the most intelligent that survives. It is the one that is the most adaptable to change. -Charles DarwinCharles Darwin查尔斯查尔斯达尔文达尔文The theories of heredity“Nothing in the world is to be feared; it is only to be understood.”Marie Curie居里夫人居里夫人“生

5、活中没有什么可怕的生活中没有什么可怕的东西东西, ,只需要理解的东西只需要理解的东西.”.”6. Who invented the way of giving electricity to everybody in large cities?Thomas Edison 爱迪生爱迪生American (1847-1931)The Inventions of Thomas Edison Phonograph 留声机留声机Light bulbMotion Pictures“Genius is one percent inspiration and ninety-nine percent perspi

6、ration.”Thomas Alva Edison爱迪生爱迪生“天才就是百分之九十九的汗水加上百分之一的灵感.”Leonardo da Vinci (1452-1519) Italian artistThe Last Supper (1778-1829) BritishThe safety lamp The Davy lamp seismograph10. Who put forward a theory about black holes?Big Bang（大爆炸）（大爆炸） Black Hole（黑洞）（黑洞）A Brief History of Time（时间简史）（时间简史）Step

7、hen HawkingDo you know who defeated King Cholera? an infectious diseasea serious infection of the bowels(内脏内脏) caused by drinking infected water or eating infected food, causing diarrhea(腹腹泻泻), vomiting(呕吐呕吐) and often death.“King Cholera”an infectious diseasein the 19th centuryJohn Snow British ( 1

8、813 1858) He attended Queen Victoria as her personal physician. He is a legendary(传说中的传说中的) figure in the history of public health.Scientific Report Do you know how to prove a scientific idea in scientific research? Can you list some stages? Stages Draw a conclusion Think of a method Collect results

9、 Make a question Find a problem Analyse the results Find supporting evidenceFind a problemAnalyse the results draw a conclusionFind supporting evidenceMake a questionThink of a methodCollect resultsJohn Snow defeats “King cholera”Reading and answer:Match paragraphs with stages Find a problem Make a

10、question Think of a method Collect results Analyse the results Find supporting evidence Draw a conclusionPara.1Para.2Para.3Para.4Para.5Para.6Para.7what was the problem?Neither its cause, nor its cure was understood. The cholera was the most deadly disease of its day. What caused cholera(two theories

11、)?Details Para1-2Which theory did John believe in?Cholera multiplied in the air. A cloud of dangerous gas floated around until it found its victims.People absorbed this disease into their bodies with their meals.A map of Broad StreetWhat method did he use to prove his idea?Broad StreetMany deaths ha

12、ppened here.No death happened here.The water from the pump was to blame.Para3-4water pump & handleThere were some water pumps in different districts in England in the 1850s. People could use them to pump the water for daily life, but if someone removed the handle from the water pump, it could not be

13、 used.It was the water that was to blame.analyze the results: What happened to the pump water?The water was from the river polluted by the dirty water from London.Para5What did he do?find supporting evidence : What extra evidence did he find?A woman and her daughter who lived far away but drank the

14、water also died.Para 6-7 His conclusion:His suggestions:“announce with certainty that polluted water carried the virus.”(para.6)The source of water- be examined;Water companies-not to expose people to pollued water(prevention of cholera)Find a problemAnalyse the results draw a conclusionFind support

15、ing evidenceMake a questionThink of a methodCollect resultsReading and answer:Match paragraphs with stages Find a problem Make a question Think of a method Collect results Analyse the results Find supporting evidence Draw a conclusionPara.1Para.2Para.3Para.4Para.5Para.6Para.7John Snow Defeats “King

16、Cholera”Paragraph 1: Introduction of John Snow and Cholera Paragraph 2: Two theories What cause the cholera? Which theory is right?Find a Problem:Make a question:Paragraph 3: Study of the outbreak in 1854 collect the data on those who fell ill or died and where they lived Paragraph 4: Study of the o

17、utbreak in 1854 plot(绘制绘制) information on the map to find out where people died or didn t die Think of a method:Collect the results:Paragraph 5: Study of the outbreak in 1854 Find out where they got their water. Analyse the water to see if it was the cause.Paragraph 6: Another evidence another evidence -Broad Street outbreak to support analysis Paragraph 7: Prevention of Cholera polluted water carried the disease and the source should be examined