1、Unit 1 Great Scientists-Reading（1）1.Which scientist discovered that objects in water are lifted up by a force that helps them float?ItsArchimedes.2.Who wrote a book explaining how animals and plants developed as the environment changed?Its Charles Darwin.3.Who invent the first steam engine?Its Thoma
2、s Newcomen.It was used to take water out of mines.James WattJames Watt improved it further in the 1770s turning it into the first modern steam engine used on the railways.4.Who used peas to show how physical characteristics are passed from parents to their children?Its Gregor Mendel.5.Who discovered
3、 radium?Its Marie Curie.6.Who invented the way of giving electricity to everybody in large cities?Its Thomas Edison.Genius is one percent inspiration,ninety-nine percent perspiration-Thomas Edison 7.Who was the painter that studied dead bodies to improve his painting of people?Its Leonardo da Vinci.
4、Leonardo da Vinci He is widely considered to be one of the greatest painters of all time,and perhaps the most intelligent and capable man to ever have lived.8.Who invented a lamp to keep miners safe underground?Its Sir Humphry Davy.Sir Humphry Davy,English chemist and inventor of the miners safety l
5、amp英国化学家、煤矿安全灯发明者汉弗莱戴维爵士生于康沃尔郡，父亲是木雕师。9.Who invented the earliest instrument to tell people where earthquakes happened?Its Zhang Heng.10.Who put forward a theory about black holes?Its Stephen Hawking.Expressions to learn:n objectn know about/ofn be lifted up by a force n floatn physical characterist
6、icsn put forward a theoryn radium n the way of doing n underground n instrument n put forward a theory 1.Draw a conclusion:(:(得出结论得出结论)2.Think of a method:2.Think of a method:(找出研究方法找出研究方法)3.Collect results3.Collect results:(:(收集材料收集材料)4.4.Make a question:(a question:(形成研究主题形成研究主题)5.Find a problem:(
7、5.Find a problem:(发现问题发现问题)6.Analyse the results:(6.Analyse the results:(分析材料分析材料)7.Find 7.Find supporting evidence:(supporting evidence:(找旁证找旁证)How to prove a new idea in scientific research?Discuss in pairs the stages in setting out a new scientific idea.What order would you put them in?Do you kno
8、w anything about cholera?What do you know about infectious diseases?SARSBird FluHINI FluReadingJohn Snow defeats“King Cholera”John snowJohn Snow(1813-1858)was educated at a private school until 14,he was apprenticed(学徒)to a surgeon(外科医生).Snow had an analytical mind that paid attention to details tha
9、t others often ignored.During the London Cholera epidemic（霍乱流行）of 1831-1832,he became a student at a school of medicine.After 2 years,he was accepted a member of the Royal College of Surgeons of England.SkimmingWhats the main idea of the passage?A.John Snow was a well-known doctor in London.B.The ca
10、use 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.Stages:What/How?Stages in a scientific experiment What causes cholera?Which theory is correct?Plot information on a map to
11、find out where people died or did not die1.Find a problem2.Make a questionFind out where they got their water.Analyse the water to see if it is the cause of the deaths Find other evidence to support the analysis Collect data on those who fell ill or died and where they lived 3.Think of a method 4.Co
12、llect results 6.Find supporting evidence5.Analyse results 7.Draw a conclusionIt was certain that polluted water carried the disease.The source of all drinking water should be examined to make sure it is safe 1.What was the most deadly disease in 19th century?Why?2.When could the cholera be controlle
13、d?The cholera,because neither its cause,nor its cure was understood.John Snow knew it would never be controlled until its cause was found.1What were the two theories explaining how cholera killed people?Which theory did John Snow believe?The 1st:Cholera multiplied in the air.The 2nd:People absorbed
14、cholera into their bodies with their meals.He believed the second one.2A map of Broad StreetWhat method did he use?Many deaths happened here.Many deaths happened here.No death happened here.Public house3Area A No death:_ _Area B Full of death:_ _Reason:People in area A _Conclusion:It seemed_20,21 Br
15、oad Street8,9 Cambridge street Near the water pumpesp.No 16,37,38worked in the pub andwere given free beerthe water was to blameRetell the passage according to below:John Snow was a well-known _ in London in the _ century.He wanted to find the _ of cholera in order to _ it.In 1854 when a cholera _ o
16、ut,he began to gather information.He _ on a map where all the dead people had lived and he found that many people who had drunk the dirty water from the _ died.So he decided that the polluted water carried cholera.He suggested that the _ of all water supply be _ and new methods of _ with polluted water be found.Finally,“King Cholera”was defeated.doctor19thcausedefeatbrokemarkedpumpsourceexamineddealingThank You
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