1、人教课标高二 必修 5 Unit 1Great scientistsWarming up&ReadingWhat do you know about great scientists?Try this quiz and find out who knows the most.1.Which scientist discovered that objects in water are lifted up by a force that helps them float?B.Archimedes C.Thomas EdisonA.Charles DarwinArchimedes(287-212 B
2、C),an ancient Greek mathematician&physicist2.Who wrote a book explaining how animals and plants developed as the environment changed?A.Marie CurieC.Charles DarwinB.Gregor MendelCharles Darwin(1808-1882),British author of The Origin of Species 3.Who invented the first steam engine?A.Thomas NewcomenC.
3、Thomas EdisonB.ArchimedesThomas Newcomen(1663-1729),British,improved the first steam pump and turnedit into a steam engine for taking water out of mines in 17124.Who used peas to show how physical characteristics are passed from parents to their children?A.Thomas EdisonC.ArchimedesB.Gregor MendelGre
4、gor Mendel(1822-1884),Czech,developed ideas on heredity(遗传学)and inherited(继承,承传)characteristics5.Who discovered radium?C.Marie CurieB.NewtonA.Zhang HengMarie Curie(1867-1934),Polish and French,won two Nobel Prizes6.Who invented the way of giving electricity to everybody in large cities?A.Stephen Haw
5、king C.Thomas EdisonB.ArchimedesThomas Edison(1847-1931),American inventorThomas EdisonInventions of Thomas Edison Phonograph 留声机Light bulb7.Who was the painter that studied dead bodies to improve his painting of people?A.Gregor MendelC.Marie CurieB.Leonardo da Vinci Leonardo da Vinci(1452-1519),Ita
6、lian artistLeonardo da Vincis paintings8.Who invented a lamp to keep miners safe underground?A.Sir Humphry Davy C.FaradayB.Thomas NewcomenSir Humphry Davy(1778-1829),British,discovered the medicinal value of nitrous oxide(一氧化二氮)as anaesthetic(麻醉剂)9.Who invented the earliest instrument to tell people
7、 where earthquakes happened?A.Charles DarwinC.Watt B.Zhang HengZhang Heng(78-139),Chinese,invented the first seismographseismograph地动仪10.Who put forward a theory about black holes?A.Stephen HawkingC.CopernicusB.ArchimedesStephen Hawking(1942-),British scientist,worked in astronomy and studied black
8、holes in spaceImagination is more important thanknowledge.“想象力比知识更重要。”Albert EinsteinMarie CurieNothing in life is to be feared,it is only to be understood.“生活中没有什么可怕的东西,只需要理解的东西。”John Snow British(1813 1858)A doctor a legendary(传奇的)figure in the history of public health,epidemiology（流行病学）and anesth
9、esiology（麻醉学）What is Cholera?Cholera is the illness caused by a bacterium called Vibria cholerae.It infects peoples intestines(肠),causing diarrhea(腹泻),vomiting and leg cramps.Do you know how to prove a new ideain scientific research?seven stagesDraw a conclusionThink of a methodCollect resultsMake a
10、 questionFind a problemAnalyse the resultsFind supporting evidencePlease put the 7 stages in right order according to the passage.Find a problemMake a questionThink of a methodCollect resultsAnalyse the results Find supporting evidenceDraw a conclusion What happened in 1854?How many people died in 1
11、0 days?Why is there no death at No.20 and 21 Broad Street as well as at No.8 and 9 Cambridge Street?Task 1:Skim and Scan1.What happened in 1854?2.How many people died in 10 days?Cholera outbreak hit London in 1854.500 people died in 10 days.3.Why is there no death at No.20 and 21 Broad Street as wel
12、l as at No.8 and 9 Cambridge Street?These families had not drunk the water from the Broad Street pump.Task 2detailed readingRead and answer:Paragraph 1:1 Why couldnt the cholera be under control at first?Neither its cause,not its cure was understood.True or false:1.John Snow was glad to help ordinar
13、y people.2.John Snow thought cholera would never be controlled.TFParagraph 2 Whats the two theories?In your words.Which one is more reasonable?John Snow finally proved the theory he believed by _.A.gathering information with the help of a mapB.looking into the source of the water for Broad Street an
14、d Cambridge Street C.separating those who suffered cholera from those who didnt D.both A and B E.both A and CParagraph 3&4Paragraph 3&4 Whats the result?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 p
15、ump so it could not be used.Paragraph 6 What s the extra evidence?Two other deaths in another part of London that were linked to the Broad Street outbreak.Paragraph 7 What are John Snows suggestions?The source of all water supplies should be examined.New methods of dealing with polluted water should
16、 be found.The water companies were also instructed not to expose people to polluted water anymore.Whats the main idea of the passage?A.John Snow was a well-known doctor in London.B.The cause of Cholera was polluted water.C.The source of all drinking water should be examined.D.How did John Snow colle
17、ct,analyze data and find the cause of the disease and solved it.Task 3Mind Map of the textJohn Snow Defeats“King Cholera”Para.1:Introduction of John Snowand Cholera.Para.2:Two theories.Find a Problem:What cause the cholera?Make up a question:Which is right?Para.3-6:Study of the breakout in1854.Para.
18、3:Think of a method:Test two theories.Para.4:Collect the result:Mark the death.Para.5:Analyse the result:Reason for death and no death.Find the resource of the water.Para.6:Find more evidence.Draw a conclusion:Cholera was spread by germ.Polluted water carried cholera.Para.7:Prevention of CholeraDrin
19、k only water that you have boiled.What should you do if youre travelling to a country that has a cholera outbreak?Eat only food thats been cooked and is still hot,or fruit that youve peeled yourself.Avoid undercooked or raw fish and shellfish.Avoid raw salads and vegetables.Avoid food and drinks from street vendors.Boil it,cook it,peel it,or forget it.Homework:1.Retell the text according to the mind map.2.Finish Exx.1-3 on Page 3.3.Highlight the bold words and phrase.Thank you.
