1、 Great scientists What great What great scientists scientists do you know?do you know?Do the quiz and Do the quiz and see who knows the see who knows the most about great most about great scientists.scientists.Warming upQuiz 1 Which scientist discovered that objects in water are lifted up by a force
2、 that helps them float?Archimedes 阿基米德阿基米德(ancient Greek)Give me a place to stand on,and I can move the earth.Quiz 2 Who wrote a book explaining how animals and plants developed as the environment changed?Charles Darwin 达尔文达尔文(British)“The Origin of Species”Quiz 3vWho invented the first steam engine
3、?Thomas Newcomen(1663-1729)British 托玛斯托玛斯 纽科门纽科门Newcomens steam engineIt was he who invented a steam engine.James Watt improved it and turned it into the first modern steam engine used on the railways.Quiz 4vWho used peas to show how physical characteristics are passed from parents to their children
4、?Inheritance遗传 Gregor Mendel门德尔门德尔(1822-1884)Czech(捷克捷克)Quiz 5vWho discovered radium?The Only person ever to receive two Nobel Prizes,one in physics and the other in chemistry.Marie Curie(Polish)Pierre CurieQuiz 6vWho invented the way of giving electricity to everybody in large cities?Thomas EdisonT
5、homas Edison Phonograph 留声机留声机lightbulb电灯泡电灯泡Motion Pictures 电影电影American(1847-1931)Quiz 7vWho was the painter that studied dead bodies to improve his painting of people?Leonardo da Vinci 达芬奇达芬奇The Last SupperItalian(1452-1519)Mona LisaQuiz 8vWho invented a lamp to keep miners safe underground?The s
6、afety lamp invented by him,also called the Davy lamp Humphry Davy(British)汉弗莱汉弗莱 戴维戴维Quiz 9vWho invented the earliest instrument to tell people where earthquakes happened?seismographZhang HengvChinese(78-139)Quiz 10vWho put forward a theory about black holes?Stephen Hawking 斯帝芬斯帝芬 霍金霍金British(1942-)
7、The theory about black holesDo you know how to prove Do you know how to prove a new idea in scientific a new idea in scientific research?research?Pre-reading24draw a conclusionthink of a methodcollect resultsmake a questionfind a problemanalyse the resultsFind supporting evidencePlease put the 7 sta
8、ges in right order.1.Find a problem (发现问题发现问题)2.Make 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.Find supporting evidence (找证据找证据)7.Draw a conclusion (得出结论得出结论)26Stages:Examples in this investigation1.Find a problem2.Make a que
9、stion3.Think of a method4.Collect resultsWhat is the problem?What is the cause?(para 1)Which theory is correct?(para 2)Collect data on those who were ill or died and where they lived.(para 3)Mark information on a map to find out where people died or did not die.(para 4)276.Find supporting evidence7.
10、Make a conclusion5.Analyse resultsFind out where they got their water.Analyse the water to see if that is the cause of the illness.(para 5)Find other evidence to make sure the conclusion.(para 6)The water is to blame.The source of all drinking water should be examined.(para 7)Read and answer:Paragra
11、ph 1:1.King Cholera is the deadly disease.2.John Snow thought cholera would never be controlled.(F)(F)John Snow wanted to face the challenge and solve the problem.Paragraph 2&31.What are the two theories?2.Which one is more reasonable?Paragraph 41.Whats his method?2.Whats the result?Collect data fro
12、m the next cholera attack to test theories.Try to prove which method was correct.He found the cause of cholera was the polluted water.Paragraph 5 When the cause was found,what did the people do？Remove the handle from the water pump so it could not be used.Paragraph 61.Whats the extra evidence?2.Why
13、could the polluted water carry the disease?Two other deaths in another part of London that were linked to the Broad Street outbreak.Because cholera was spread by germs and germs can be carried by the polluted water.Paragraph 7What are John Snows suggestions?The source of all water supplies should be examined.2)The water companies were also instructed not to expose people to polluted water any more.
