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1、有时候一个人为不花钱得到的东西付出的代价最高。美国科学家爱因斯坦AGenius only means hardworking all ones life.Mendeleyer，Russian Chemist天才只意味着终身不懈的努力。俄国化学家门捷列耶夫第1页/共7页John SnowJohn Snow was born on March 15,1813，in the city of York，England.As a boy he proved to be a bright student，so his mother sent him to a private school，where he
2、 excelled.类文欣赏类文欣赏类文欣赏类文欣赏第2页/共7页Snow planned to become a physician，and at fourteen，he was apprenticed(使使 某某 人人 当当 学学 徒徒)to Dr.William Hardcastle in Newcastle-upon-Tyne.Snow had an analytical mind that paid attention to details that others often ignored.During his early years as an apprentice，he fil
3、led notebooks with his thoughts and observations on scientific subjects.第3页/共7页During the London cholera epidemic(流行霍乱)of 18311832，he became a student at the School of Medicine in Great Windmill Street，London.After two years of schooling，he was accepted as a member of the Royal College of Surgeons o
4、f England.Snow was a believer in the germ theory of cholera.In 1849 Snow wrote a book“On the Mode of Communication of Cholera，”in which he suggested that the“cholera poison”was spread(传播)through the pollution of food or water.This theory should be against the more commonly accepted idea that cholera
5、，like all diseases，multiplied in the air，and a cloud of dangerous gas floated around until it found its victims.第4页/共7页On April 7,1853，he used chloroform(三氯甲烷，旧时医用麻醉剂)to Queen Victoria at the birth of her eighth child，Prince Leopold.And it wasnt until 1854，when cholera struck England once again，that
6、 Snows argument that cholera was spread through polluted food or water was recognized.For his efforts to determine how cholera was spread and for the statistical mapping methods he used，John Snow is widely considered to be the father of modern epidemiology.第5页/共7页Read the passage and tell the follow
7、ing statements true(T)or false(F)1As a boy，John Snow filled notebooks with his thoughts and observations on scientific subjects.()2John Snow believed that the“cholera poison”was spread through the pollution of food or water.()3Snows argument that cholera was spread through polluted food or water was recognized when it was put forward.()Keys：1.F2.T3.F第6页/共7页感谢您的观看！第7页/共7页