高中英语人教必修五Unitreading.pptx

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1、What do you know about great scientists?Try this quiz and find out who knows the most.(Finish the Quiz Questions on P1.)I.Warming up第1页/共33页1.Which scientist discovered that objects in water are lifted up by a force that helps them float?Archimedes(287-212 BC)an ancient Greek mathematician第2页/共33页2.

2、Who wrote a book explaining how animals and plants developed as the environment changed?Charles Darwin(1808-1882)Britishauthor of The Origin of Species 第3页/共33页3.Who invented the first steam engine?Thomas Newcomen(1663-1729)British,improved the first steam pump and turned it into a steam engine for

3、taking water out of mines in 1712.James Watt improved it and turned it into the first modern steam engine used on the railways.第4页/共33页发明蒸汽机的并不是瓦特，他是改进纽可门的蒸气机，并发明出双动式，使世界进入了“蒸气时代”。这使他成为第一次工业革命中的名气最大的发明家。James Watt (瓦特)第5页/共33页4.Who used peas to show how physical characteristics are passed from paren

4、ts to their children?Gregor Mendel(1822-1884)Czech(捷克人)第6页/共33页5.Who discovered radium?Marie Curie(1867-1934)(Polish and French,won two Nobel Prizes)第7页/共33页6.Who invented the way of giving electricity to everybody in large cities?Thomas Edison(1847-1931)an American inventor第8页/共33页7.Who was the pai

5、nter that studied dead bodies to improve his painting of people?Last SupperMona LisaLeonardo da Vinci(1452-1519)Italian artist第9页/共33页8.Who invented a lamp to keep miners safe underground?Sir Humphry Davy(1778-1829)BritishMiniature Miners Safety Lamp 第10页/共33页9.Who invented the earliest instrument t

6、o tell people where earthquakes happened?Zhang Heng(78-139)Chinese,invented seismograph第11页/共33页10.Who put forward a theory about black holes?Stephen Hawking(1942-)a British astronomer第12页/共33页Q Answer1.Archimedes (an ancient Greek mathematician)2.Charles Darwin(author of The Origin of Species)3.Tho

7、mas Newcomen(British,improved the first steam pump and turned it into a steam engine for taking water out of mines in 1712)4.Gregor Mendel (Czech)5.Marie Curie (Polish and French,won two Nobel Prizes)6.Thomas Edison(an American inventor)7.Leonardo da Vinci(a famous Italian artist)8.Sir Humphry Davy(

8、British)9.Zhang Heng (Chinese,invented seismograph)10.Stephen Hawking(a British astronomer)第13页/共33页Infectious diseases can be spread easily.They have an unknown cause and may do great harm to people.People could be exposed to infectious diseases,so may animals,such as bird flu.What do you know abou

9、t infectious diseases?II.Prereading第14页/共33页Blood 血液Airborne 空气Droplet 飞沫沫Fecal-oral 排泄物Contact 接触Vector 媒介媒介 animals,insectsModes of Transmission 传染途径传染途径第15页/共33页Do you know what kind of disease is cholera?It is a kind of terrible disease caused by drinking dirty water and it caused a lot of death

10、s in the old times and it was very difficult to defeat.第16页/共33页Find a problemMake a questionThink of a methodCollect resultsAnalyse the resultsFind supporting evidenceDraw a conclusionReview the stages on page 1 about research into a disease.1.2.3.4.5.6.7 第17页/共33页Review the stages on page 1 about

11、research into a disease.1234567Find a problemMake up a questionThink of a methodCollect resultsAnalyse the resultsFind supporting evidenceDraw a conclusion第18页/共33页Reading John Snow defeats“King Cholera”第19页/共33页1.What happened in 1854?2.How many people died in 10 days?3.Why is there no death at No.

12、20 and 21 Broad Street as well as at No.8 and 9 Cambridge Street?Cholera outbreak hit London.500These families had not drunk the water from the Broad Street pump.Task 1:Skim and Scan第20页/共33页2).Use the seven stages in examining a new scientific idea to describe each paragraph.第21页/共33页Stage1Find a p

13、roblem Many people died of cholera,but neither its _ nor its _ was understood.stage2Make up a questionTheory one:Cholera _ in the air and dangerous gas floated around until it found its victims.Theory two:When people _ cholera into their bodies with meals,their bodies were attacked and soon they die

14、d.stage3Think of a methodTo _ the second theory was correct.stage4Collect resultsSome _ was gathered on how many people died and where they got water.Para1causecuremultipliedabsorbedproveinformationPara2Para3Para4第22页/共33页stage5Analyse the resultsAnalyse the _ of water to see if it was to blame.stag

15、e6Find supporting evidenceWith extra _,John Snow was able to announce with certainty that _ water carried the disease.stage7Draw a conclusionPolluted water spread cholera.“King Cholera”was _.Para5sourceevidencePara6pollutedPara7defeated第23页/共33页3.Careful reading Read the first paragraph carefully,th

16、en answer these questions第24页/共33页1.Why was the most deadly disease in 19th century?2.When could the cholera be controlled?The cholera,because neither its cause,nor its cure was understood.John Snow knew it would never be controlled until its cause was found.第25页/共33页3.What were the two theories exp

17、laining how cholera killed people?in Para 2第26页/共33页 Read the third paragraph and then tell these sentences are true or false第27页/共33页4.When another outbreak hit London in 1854,John snow was ready to test these two theories.5.He found that in two tall buildings the cholera outbreak was so severe.Tru

18、e or false:tallbuildings第28页/共33页6.What helped John Snow find the clue about the cause of the disease?(Para 6)7.When was John Snow able to announce with certainty that polluted water carried disease?A map of London After he found two deaths in another part of London that were linked to the Broad Str

19、eet outbreak.第29页/共33页(Para 7)8.What was his suggestion to defeat cholera?He suggested that the source of all water supplies be examined and new methods of dealing with polluted water be found.第30页/共33页 As the disease spread quickly,_ _He marked on a map where all the dead people had lived,_and found out _ was the cause.Then he suggested that the source of all drinking water_ John began to gather information:9.How did John Snow finally defeat Cholera?analyzed all evidencesthe polluted waterbe examined.第31页/共33页第32页/共33页感谢您的观看！第33页/共33页