Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,*,*,*,Reading,Unit 1 Great scientists,ReadingUnit 1 Great scientists,1,1.Do you know how to prove a new idea in scientific research?Discuss in small groups the stages in setting out a new scientific idea.What order would you put them in?,Pre-reading,1.Do you know how to prove a,2,draw a conclusion,think of a method,collect results,make a question,find a problem,analyse the results,find supporting evidence,find a problem,make a question,think of a method,collect results,analyse the results,draw a conclusion,How to prove a,new idea in scientific,research?,find supporting evidence,draw a conclusionthink of a me,3,2.What do you know about infectious diseases?What do you know about cholera?,2.What do you know about infe,4,Infectious diseases can be spread,to other people.They have an unknown,cause and need public health care to,solve them.,People may be exposed to infectious,diseases,so may animals.Bird flu,AIDS and SARS are infectious diseases.,Infectious diseases are difficult to cure.,What do you know about infectious diseases?,Infectious diseases can be,5,Germany,Great Britain,Death of first cholera case in London during the 1848-49 epidemic,London,Previous cholera epidemic in Great Britain in 1831-32,The spread of cholera,GermanyDeath of first cholera,6,What other infectious diseases do you know?,For example:When you eat some food that is not fresh,You may feel,Maybe you have got _.,Cholera,What other infectious diseases,7,What is Cholera?,Cholera is the illness caused by a bacterium called,Vibrio cholerae,.It infects peoples intestines(肠),causing diarrhea(腹泻),vomiting and leg cramps.The most common cause of cholera is by someone eating food or drinking water that has been infected with the bacteria.,What is Cholera?Cholera is,8,After a disaster,this is a very real danger,since regular,clean water,and food supplies are often,unavailable.The disease can be,spread even further by infected people using already dirtied water sources to clean themselves or dispose of waste.,After a disaster,this,9,广东省某学校高中英语必修五ppt课件：Unit1-Reading,10,3.Look at the picture,the map and the title and predict the content of the reading passage.Then skim it quickly to see if you are right.,3.Look at the picture,the ma,11,John Snow,defeats,“king cholera”,What can you learn from the title?,人物：,事件：,defeats cholera,John Snow defeats“king choler,12,Who is John Snow?,What happened to them?,attended,her as her,personal physician,Queen Victoria,Who is John Snow?What happened,13,John Snow 约翰.斯诺(1813,1858),英国麻醉学家、,流行病专家。他首次提出了,预防霍乱的措施。1854年,伦敦霍乱流行,斯诺通过研究,霍乱病死者的日常生活情况,寻找到他们的共同行为模式,发现了霍乱与饮用不洁水的,关系,由于及时切断了二者,的联系,有效制止了霍乱的,流行。,John Snow 约翰.斯诺(1813,14,Four outbreaks of cholera in the 1830s and 1840s killed many people in England.,In 1854,“the most terrible outbreak of cholera which ever occurred in the kingdom”began.It was so violent and sudden that 127 people died in the first three days.,The terrible cholera,Four outbreaks of cholera in t,15,Bacteria/germs,of cholera,Bacteria/germs,16,Name of illness,cholera(霍乱),Symptom(症状),severe vomiting(呕吐)and diarrhoea(腹泻),Aftereffect(后果),die quickly from a loss of liquid,What was the cause of this illness?,How did John Snow find it out?,17,Reading,John Snow Defeats“King Cholera”,John Snow,ReadingJohn Snow Defeats“King,18,Skimming,Read the text(P2-3)quickly and complete the main idea of it.,The text is mainly about _,_ and how he _.,John,defeated cholera,Snow,SkimmingRead the text(P2-3)q,19,I.To prove a new scientific idea,seven stages are needed.Read the text carefully and fill in the blanks.,Careful reading,I.To prove a new scientific i,20,Stage 1,Find a problem,A large number 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,multiplied,cure,Stage 1Find a problemA large n,21,Stage 3,Think of a method,Began to gather information to 5._ that the second theory was correct.,Stage 4,Collect results,Marked where the dead people had lived on a(n)6._.,Stage 5,Analyse the results,Looked into the 7._ of the water to see if the problem was the water.,map,prove,source,Stage 3Think of a methodBegan,22,Broad Street,Many deaths happened here.,No death happened here.,The water from the pump was to blame.,Public house,Broad StreetMany deaths happen,23,Small,white,flocculent particles,The water was from the river which had been polluted by the dirty water from London.,Small,white,flocculent parti,24,Stage 6,Find supporting evidence,Found supporting evidence from two other deaths:Both of them died of cholera after 8._.,Stage 7,Draw a conclusion,9._,carried the virus.,All the water supplies,should be 10._.,drinking the water,Polluted water,examined,extra evidence:,A woman and her dau