Bell-and-His-Telephone.ppt

,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,Bell and His,Telephone,Telephone Exhibition,The earlier telephones were made by brass(,黄铜,)and wood.,In the early 1900s,telephones were only used by noblemen.,(,贵族）,the first telephone used in the war,Wall telephones were popular in the 1920s.,famous telephones made in France in the 1930s,This kind of telephone was used by,15,000,000,people in America in the 1960s.,the first video telephone,Nowadays,telephones are used as communication tools as well as artworks.,Now almost every second of every day,the bell of the telephone can be heard somewhere around the world.,“May(,希望,)the telephone is always singing.”,-,Alexander Graham Bell,Questions:,When and where was Bell born?,b.What did his grandfather and father train him to do?,c.When did he move to Canada?,d.When did he settle in the USA?,He was born in Britain in 1847.,They trained him in public speaking and teaching the deaf.,In 1870.,In 1871.,Questions about,What did Bell do in 1876?,b.What did he do on March 10.1876?,c.What did he do the next year?,He invented his“electrical speech machine”.,He sent the worlds first telephone message to his assistant.,He established the Bell Telephone Company.,Questions about,What happened to Bell in 1922?,b.What can telephone lines help people to do now?,c.What must the deaf use when they communicate?,He died in 1922.,They can help to send sound messages and video images.,They must use a special display telephone to communicate.,Alexander Graham Bell,The Great Inventor of the Telephone,18471922,1847 Born in _,1870,_ with his family,_ _ the U.S.A.,1876,_ on March 10,_,_ the Bell Telephone Company,1882 Became an _,1922,_ in _,Britain,Moved to Canada,Settled in,Invented the telephone,Established,American citizen,Died,America,1871,1877,Important phrases,做某事的强烈欲望,带着,希望,引导某人做,传遍整个国家,第二年,被广泛使用于,不仅,而且,为,铺平道路,have a keen desire to do,with hope for,lead sb,.to,spread throughout the country,the next year,be widely used in,not onlybut also,pave the way for,Describe Bells life,Bell and his telephone,Important phrases in the text,How to describe a person,summary,Communication inventions,regular telephone,mobile phone,E-mail,fax machine,Homework,Invention,Advantages,Disadvantages,Fax machine,Regular telephone,Mobile phone,E-mail,Thank you,