必修5unit1Reading(教育精品).ppt

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1、 There are some great scientific achievements that have changed the world.Can you name some of them?What kind of role do they play in the field of science?Do these achievements have anything in common?Match the inventions with their inventors below before you answer all these questions.Alexander Bel

2、l electricity Thomas Edison the First telephoneLaite Brothers the electric LampMadame Curie black holes in UniverseFranklin Theory of GravitySteven Hawking the First PlaneElbert Einstein RadiumIsaac Newton the Theory of RelativityWho is he?He is Archimedes(阿基米德阿基米德)Which scientist discovered that ob

3、jects in water are lifted up by a force that helps them float?Charles Darwin.Who is he?He is Who wrote a book explaining how animals and plants developed as the environment changed?Thomas Newcomen.Who is he?He is Who invented the first steam engine?Gregor MendelWho is he?He is Who used peas to show

4、how physical characteristics are passed from parents to their children?Marie CurieWho is he?She is Who discovered radium?Thomas EdisonWho is he?He is Who invented the way of giving electricity to everybody in large cities?Leonardo da VinciWho is he?He is Who was the painter that studied dead bodies

5、to improve his painting of people?Humphry DavyWho is he?Who is he?He is Who invented a lamp to keep miners safe underground?Stephen HawkingWho is he?He is Who put forward a theory about black holes?1.Do you know how to prove a new idea in scientific research?Discuss in small groups the stages in set

6、ting out a new scientific idea.What order would you put them in?Draw a conclusionThink of a methodCollect resultsMake a questionFind a problemAnalyse the resultsFind supporting evidencePlease put the 7 stages in right order according to the passage.2.What do you know about infectious diseases?What d

7、o you know about cholera?GermanyGreat BritainDeath of first cholera case in London during the 1848-49 epidemic LondonPrevious cholera epidemic in Great Britain in 1831-32The spread of cholera3.Look at the picture,the map and the title and predict the content of the reading passage.Then skim it quick

8、ly to see if you are right.John SnowRead the text(P2-3)quickly and complete the main idea of it.The text is mainly about _ and how he _.Johndefeated choleraSnowI.To prove a new scientific idea,seven stages are needed.Read the text(P2-3)carefully and fill in the blanks.Stage 1 Find a problemA large n

9、umber of people died of cholera,but neither its 1._ nor its 2._ was understood.Stage 2 Make a question Theory one:Cholera 3._ in the air and floated around until it found its victims.Theory two:When people 4._ cholera into their bodies with meals,their bodies were attacked.cause absorbed multipliedc

10、ureStage 3 Think of a methodBegan to gather information to 5._ that the second theory was correct.Stage 4 Collect resultsMarked where the dead people had lived on a(n)6._.Stage 5 Analyse the resultsLooked into the 7._ of the water to see if the problem was the water.map provesourceBroad StreetMany d

11、eaths happened here.No death happened here.The water from the pump was to blame.Public houseStage 6Find supporting evidenceFound supporting evidence from two other deaths:Both of them died of cholera after 8._.Stage 7Draw a conclusion 9._ carried the virus.All the water supplies should be 10._.drink

12、ing the water Polluted waterexaminedextra evidence:A woman and her daughter who lived far away but drank the water also died.I.Choose the best answer.1.We know from the text that John Snow _.A.had collected information before cholera broke out B.felt not quite sure after he finished the mapC.helped

13、the woman from Broad StreetD.became famous after defeating cholera2.Why did John Snow use a map in his research?A.It could help him find exactly how B.many people died of cholera.B.It could help him find the source of drinking water for people.C.It could help him organize his ideas and find evidence

14、.D.It could help him find his way in Broad Street.3.Why was cholera called“King Cholera”in the text?A.Because it caused many deaths.B.B.Because it got its name from Queen C.Victoria.C.Because it was defeated with the help of the King.D.Because it was the most deadly disease of its day.I.Number these

15、 events in the II.order that they happened._ John Snow began to test two theories._ An outbreak of cholera hit London in 1854._ John Snow marked the deaths on a map.124_ He announced that the water carried the disease._ John Snow investigated two streets where the outbreak was very severe._ King Cho

16、lera was defeated._ He found that most of the deaths were near a water pump._ He had the handle removed from the water pump.35678 Drink only water that you have boiled or treated with chlorine or iodine.Other safe drinks include tea or coffee made with boiled water and carbonated,bottled beverages w

17、ith no ice.What should you do if youre travelling to a country that has a cholera outbreak?Eat only food thats been thoroughly 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.