Việt Anh Phạm | Chat Online
15/03/2022 20:45:07

Read the text about Alexander Graham Bell and do the tasks


Read the text about Alexander Graham Bell and do the tasks

  Alexander Graham Bell  is widely known  as inventor of the first telephone. He was born on March 3rd, 1847 in Edinburgh, Scotland. When he was 23, Bell emigrated to Canada with his parents and the next year moved to the United States to teach deaf-mute children. With his  colleague Thomas Watson , Bell worked very hard on the experimentation to invent devices such as the  harmonic telegraph (used to send multiple messages over a  single wire) and phonautograph (used to draw the shape of the sound  waves. The first telephone communication was said to have happened between Bell and Watson in 1876 while Bell was at one end of the line, and Watson worked on the telephone in other room. The first transmitted words were, ‘Mr Watson, come here. I want to see you’

a. Decide  if the statements are T or F

1. Alexander Graham Bell is Scottish.

2. He spent all his life in Canada

3. He worked with the deaf when he moved to the USA

4. He wanted to create  a device that can transmit human voice

5. He was able to succeed right from the first experiment

6.He worked on his inventions all by himself

b. Answer the questions

1. What is Bell’s ‘harmonic telegraph’?

………………………………………………………………………………….……

2. What is Bell’s ‘phonautograph’

……………………………………………………………………..………………..

3. When did the first communication over happened and how did it happen?

………………………………………………………………………………………

Bài tập chưa có câu trả lời nào. Rất mong nhận được trả lời của bạn! | Chính sách thưởng | Quy chế giải bài tập
Không chấp nhận lời giải copy từ Trợ lý ảo / ChatGPT. Phát hiện 1 câu cũng sẽ bị xóa tài khoản và không được thưởng
Đăng ký tài khoản để nhận Giải thưởng khi trả lời bài tập.
Đăng ký tài khoản để có thể trả lời bài tập này!

Đăng ký qua Facebook hoặc Google:

Hoặc lựa chọn:
Đăng ký bằng email, điện thoại Đăng nhập bằng email, điện thoại
Lazi.vn