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Lê Quỳnh  Anh
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Dương Hoàn Anh
13 tháng 2 2018 lúc 6:22

Đáp án: It is used to draw the shape of the sound waves.

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Bảo Thy
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Đỗ Thanh Hải
20 tháng 10 2021 lúc 12:30

1 A

2 C

3 B

4 D

5 A

6 C

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Võ Thị Tuyết Kha
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BN KIÊN NHẪN NHỈ ???

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 th 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 /T/

2. He spent all his life in Canada   /F/

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

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

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

6. He worked on his inventions all by himself  /F/

b. Answer the questions

1. What is Bell 's "harmonic telegraph"?

It's used to send multiple messages over a single wire 

2. What is Bell 's "phonautograph"?

It's used to draw shape of the sound waves 

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

.... ( mk chịu )

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Nguyễn Hà Anh
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minh nguyet
20 tháng 9 2018 lúc 14:10

. 1. Where was Alexander Graham Bell born ?

In Scotland

2. Where did he emigrate first ?

He emigrated to Canada first

3. Who did Bell work with at Boston University?

Thomas Watson

4. What did Bell invent ?

The telephone

5. Did Bell conduct many experiments in America?

Yes, he did

6. Where did he successfully demonstrate his invention?

At the countless exhibitions

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Nguyễn Trung Hiếu
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Vũ Như Quỳnh
8 tháng 10 2018 lúc 19:59

1. A

2. B

3. A

4. D

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Trà My
8 tháng 10 2018 lúc 19:59

1. Read the following passage and choose the item (a, b, c, or d)
Alexender Graham Bell war born in 1847 in Edinburgh, Scotland. His father was an expert in phonetics, the study of the sounds of languages. As a boy, Bell became interested in sounds and speech.
In 1870 the Bells decided to emigrate to America. They lived in Boston, where Alexander taught in a school for the deaf. There he began experimenting with a machine to help the deaf hear. While experimenting with this machine, Bell has an idea. Why not use electricity to send the human voice from one place to another? Bell began working on a new invention.

1. When was Alexander G. Bell born?
a. In 1847 b. In 1870 c. In 1870s d. no information
2. He went to live ....................
a. in Scotland b. in America c. in Boston d. b & c are correct
3. What does the word 'emigrate' in line 4 mean?
a. leave somebody's country to live in another country
b. to go to a place for a short time
c. travel a long way from home to work every day
d. get away from something dangerous
4. What does the word 'they' in line 4 refer to?
a. sounds b. the Bells c. the American d. the deaf

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Ngố ngây ngô
8 tháng 10 2018 lúc 20:00

1. Read the following passage and choose the item (a, b, c, or d)
Alexender Graham Bell war born in 1847 in Edinburgh, Scotland. His father was an expert in phonetics, the study of the sounds of languages. As a boy, Bell became interested in sounds and speech.
In 1870 the Bells decided to emigrate to America. They lived in Boston, where Alexander taught in a school for the deaf. There he began experimenting with a machine to help the deaf hear. While experimenting with this machine, Bell has an idea. Why not use electricity to send the human voice from one place to another? Bell began working on a new invention.

1. When was Alexander G. Bell born?
a. In 1847 b. In 1870 c. In 1870s d. no information
2. He went to live ....................
a. in Scotland b. in America c. in Boston d. b & c are correct
3. What does the word 'emigrate' in line 4 mean?
a. leave somebody's country to live in another country
b. to go to a place for a short time
c. travel a long way from home to work every day
d. get away from something dangerous
4. What does the word 'they' in line 4 refer to?
a. sounds b. the Bells c. the American d. the deaf

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Lê Quỳnh  Anh
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Dương Hoàn Anh
13 tháng 7 2017 lúc 8:10

Đáp án: He was born on March 3rd, 1847.

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Minuly
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lamis
27 tháng 12 2020 lúc 21:56

1.in 1847, in Edinburgh,Scotland

2. he worked with deaf-mutes at Boston university

3. he was Bell's assistant

4. they introduced the telephone in 1876

5. Bell dies when he was 75 years old

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Lê Quỳnh  Anh
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Dương Hoàn Anh
25 tháng 9 2017 lúc 6:03

Đáp án: A

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Phạm Gia Khánh
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