人教版高中英语必修五Unit1Great-Scientists-reading优秀公开课课件（含视频）.PPT

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1、Great scientists,Unit 1,What do you know about great scientists?Try this quiz and find out who knows the most?,1,2,3,4,5,6,7,8,9,1.Which scientist discovered that objects in water are lifted up by a force that helps them float?,Archimedes,Its,Give me a place to stand and I will move the world!,rkmid

2、iz,2.Who wrote a book explaining how animals and plants developed as the environment changed?,Charles Darwin,t:lz d:wn,3.Who invented the first steam engine?,James Watt,4.Who used peas to show how physical characteristics are passed from parents to their children?,Gregor Mendel,radium,5.Who discover

3、ed radium?,Marie Curie,kjri,Thomas Edison,He invented the way of giving electricity to everybody in large cities.,tms edisn,7.Who was the painter that studied dead bodies to improve his painting of people?,Leonardo da vinciliun:du dvinti,8.Who invented a lamp to keep miners safe underground?,Sir Hum

4、phry Davy,hmfri,devi,9.He invented the earliest instrument to tell people where earthquakes happened.,Zhang Heng,10.Who put forward a theory about black holes?,Stephen Hawking,sti:vn h:k,Draw a conclusion,They are all great scientists for their_.,overcome many difficulties;made great achievements;ma

5、de a great contribution to_,They all,great work,to all mankind.,Great!,successful!,Think of a method,Collect results,Make up a question,Find a problem,Analyse the result,Draw a conclusion,Find supporting evidence,How to prove a new idea in scientific research?,Pre-reading:,What do you know about inf

6、ectious diseases?,Generally speaking，Infectious diseases with unknown _ can spread _,_,_,which may do great _ to people,such as AIDS and SARS which are infectious ones；They are difficult to _and need public health care to solve them.,causes,suddenly,easily,rapidly,harm,cure,infect,The man has been i

7、nfected with cholera.这人已染上了霍乱。,They are all infected with his high spirits.他们都被高昂的情绪所鼓舞。,What has infected the man with cholera is still unknown.那人染上霍乱的原因目前不明。,Be infected with 充满(某种感情),infect sb with sth让某人染上（疾病）=sb be infected with sth 某人被染上（疾病）,John Snow defeats“King Cholera”,Reading,Four outbrea

8、ks 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.,Video:The terrible cholera,A brief introduction of cholera,cholera(霍乱)

9、,:Drink only water _or treated with_;tea or coffee made with_;beverages with no _;Eat some food _ thoroughly and still hot,or fruit _ yourself.Avoid _or_ fish and shellfish.Avoid _ salads and vegetables.Avoid food and drinks from_.,boiled,chlorine,boiled water,cooked,peeled,undercooked,raw,raw,stree

10、t vendors,Avoid！,Drinks&Food,ice,What was the cause of this illness?How did John Snow find it out?,Skim the text and find the main idea of the text.,The passage is mainly about:_,How John Snow found the cause of the cholera and defeated it.,What is the problem?,The cholera was the most deadly diseas

11、e of its day.Neither its cause,nor its cure was understood.,Step 1,3 routes of transmission,Para.1,bodily fluids,sourceofinfection,infectious,water or food,droplet,Make a question:Which theory is correct?,idea 1,idea 2,It multiplied in the air.A cloud of dangerous gas would float around until it fou

12、nd its victims.,People absorbed it with their meals.,Step 2,sourceofinfection,?,?,Para.2,A map of Broad Street,What method did he use?,Broad Street,Many deaths happened here.,No death happened here.,The water from the pump was to blame.,Public house,Para.3+4,droplet,where most deaths happened,Para.3

13、-4,Think of method:gather information and investigate,Where there werefew or no deaths,What was mostly sharedby the survivors？,crowded or not,Water,Collect results:mark information on the mapfind the places where deaths happened or not,Step 4,Step 3,What was shared by most deaths,Analyze the results

14、:What happened to the pump water?,The water was from the river which had been polluted by the dirty water from London.,Step 5,Para.5,murder,？,Find supporting evidence:two other deaths,Draw a conclusion with certainty,The polluted water carried the disease.,Step 6,Step 7,Para.6,A woman and her daught

15、er who lived far away but drank the water also died.,cholera,features,What should we pay attention to in our daily life in order not to get infected with all these infectious diseases?,Heat the food left overnight,Cook raw food thoroughly,Wash hands often,Keep away from flies,choose fresh sea food,Keep the kitchen clean,Dispose rubbish properly.,Drink boiled water,Discussion,