ON MARCH 3,1847,ALEXANDER GRAHAM BELL was born in edin burgh. He was a scotsman although he later emigrated, first to Canada and then to the USA in the 1870s. In America, he worked with deaf-mutes at Boston University. Soon, Bell started experimenting with ways of transmitting speech over a long distance. This led to the invention the telephone. Bell and his assistant, Thomas Watson, conducted many experiments and finally came up with a device which they first introduced in 1876. Bell said on the telephone: 'Mr. Watson, come here. I want you.' Thí was the first telephone message. Traveling all over America, Bell demonstrated hí invention to the public at countless exhibitions, and by 1877 the first telephone was in commercial use.
Tóm tắt đoạn văn này giúp em với ạ chiều nay em học rồi
1. Alexander Graham Bell was born in Scotland
2. Alexander Graham Bell went to live in Canada
3. Alexander Graham Bell went to live in the United States
4. Alexander Graham Bell worked with people who could neither speak nor hear
5. Alexander Graham Bell worked with Thomas Watson
6. Alexander Graham Bell invented the telephone