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Read the following passage, then choose the correct answer to questions 26- 30.

15

The invention of the phonograph happened quite by accident. Thomas Edison moved to Menlo Park,
New Jersy in 1876, where he established an industrial research laboratory. There, Edison was working on a
carbon telephone transmitter to improve the existing Bell telephone system.
In that laboratory a year later, Edison invented the phonograph while he was trying to improve a
telegraph repeater. He attached a telephone diaphragm to the needle in the telegraph repeater; in this way, he was
able to reproduce a recording that could be played back. After he made some improvements to the machine, he
tested it. He recited “Mary Had a Little Lamb” into the machine and played his voice back to a very surprised
audience.
26. What is the best title for the passage?
A. Thomas Edison’s many inventions B. Improvements in telephone and telegraph
C. The History of Menlo Park D. An accidental invention
27. In what year did the invention of phnograph occur?
A. 1876 B. 1877 C. 1878 D. the article does not say
28. What was Edison working on when he created the phonograph?
A. A telegraph repeater B. A telegraph diaphragm
C. A telephone repeater D. A telephone diaphragm
29. According to the passage, how was the phonograph made?
A. With a telephone needle and a recorder B. From a recording of a telegraph
C. With only a telegraph repeater D. From a combination of telephone & telegraph part
30. According to the passage, how did Edison test his new invention?
A. He made improvements to the machine. B. He used a carbon transmitter.
C. He read a children’s rhyme. D. He produced the audience voice.

1
24 tháng 2 2020

26. What is the best title for the passage?
A. Thomas Edison’s many inventions

B. Improvements in telephone and telegraph
C. The History of Menlo Park

D. An accidental invention
27. In what year did the invention of phnograph occur?
A. 1876 B. 1877 C. 1878 D. the article does not say
28. What was Edison working on when he created the phonograph?
A. A telegraph repeater B. A telegraph diaphragm
C. A telephone repeater D. A telephone diaphragm
29. According to the passage, how was the phonograph made?
A. With a telephone needle and a recorder

B. From a recording of a telegraph
C. With only a telegraph repeater

D. From a combination of telephone & telegraph part
30. According to the passage, how did Edison test his new invention?
A. He made improvements to the machine.

B. He used a carbon transmitter.
C. He read a children’s rhyme.

D. He produced the audience voice.

6 tháng 5 2018

The invention of the phonograph happened quite by accident. Thomas Edison moved to Menlo Park, New Jersy in 1876, where he established an industrial research laboratory. There, Edison was working on a carbon telephone transmitter to improve the existing Bell telephone system.
In that laboratory a year later, Edison invented the phonograph while he was trying to
improve a telegraph repeater. He attached a telephone diaphragm to the needle in the telegraph
repeater; in this way, he was able to reproduce a recording that could be played back. After he made some improvements to the machine, he tested it. He recited “Mary Had a Little Lamb” into the machine and played his voice back to a very surprised audience.

a)Was the phonograph an accidental invention

Yes, it was.

Exercise 1 : Đọc kỹ đoạn văn rồi điền từ còn thiếu vào chỗ trống mỗi câu. You may use the telephone every day but how much you know about it. Alexander Bell invented the first telephone in 1876. Bell was born in Scotland in 1847 but later he decided to emigrate to America and taught in a school for the deaf-mutes . Bell was interested in sound , so he wanted to be able to send sound through a wire . He did many experiments with his assistant , Thomas Watson . Bell...
Đọc tiếp

Exercise 1 : Đọc kỹ đoạn văn rồi điền từ còn thiếu vào chỗ trống mỗi câu.

You may use the telephone every day but how much you know about it. Alexander Bell invented the first telephone in 1876. Bell was born in Scotland in 1847 but later he decided to emigrate to America and taught in a school for the deaf-mutes . Bell was interested in sound , so he wanted to be able to send sound through a wire . He did many experiments with his assistant , Thomas Watson . Bell finally succeeded . He invented the first telephone . Later other inventions made better ones but the way the telephone works is still the same

1. In 1976 Alexander.................................................................................................

2. Bell was born in...........................................................1947

3. Bell wanted to be able to sen through a wire because he was...............................

4........................................was Bell’s assistant

Exercise 2 : Đọc kỹ đoạn văn rồi điền từ còn thiếu vào chỗ trống mỗi câu.

The invention of the phonograph happened quite by accident . Thomas Edison moved to Menlo Park, New Jersy in 1876, where he established an industrial research laboratory . There, Edison was working on a carbon telephone transmitter to improve the exosting Bell telephone system

In that laboratory a year later, Edison invented the phonograph while he was trying to improve a telegraph repeater . He attached a telephone diaphragm to the needle in thetelegraph repeater ; in this way , he was able to reproduce a recording that could be played back. After he made some improvements to the machine, he tested it . He recited ‘‘Mary had a little lamb’’ into the machine and played his voice back to a very surprised audience

1. Thomas Edison moved to............................................................................1976

2. Thomas Edisom established an industrial research laboratory in....................................1976

3. He invented.............................while he was trying to improve a telephone repeater

4. The invention of the....................................................................by accident

1
5 tháng 12 2018

Exercise 1 : Đọc kỹ đoạn văn rồi điền từ còn thiếu vào chỗ trống mỗi câu.

You may use the telephone every day but how much you know about it. Alexander Bell invented the first telephone in 1876. Bell was born in Scotland in 1847 but later he decided to emigrate to America and taught in a school for the deaf-mutes . Bell was interested in sound , so he wanted to be able to send sound through a wire . He did many experiments with his assistant , Thomas Watson . Bell finally succeeded . He invented the first telephone . Later other inventions made better ones but the way the telephone works is still the same

1. In 1976 => 1876 Alexander...Bell invented the first telephone.....

2. Bell was born in..........Scotland.............1947=> 1847

3. Bell wanted to be able to sen through a wire because he was...interested in sound....

4..........Thomas Watson....was Bell’s assistant

Exercise 2 : Đọc kỹ đoạn văn rồi điền từ còn thiếu vào chỗ trống mỗi câu.

The invention of the phonograph happened quite by accident . Thomas Edison moved to Menlo Park, New Jersy in 1876, where he established an industrial research laboratory . There, Edison was working on a carbon telephone transmitter to improve the exosting Bell telephone system

In that laboratory a year later, Edison invented the phonograph while he was trying to improve a telegraph repeater . He attached a telephone diaphragm to the needle in thetelegraph repeater ; in this way , he was able to reproduce a recording that could be played back. After he made some improvements to the machine, he tested it . He recited ‘‘Mary had a little lamb’’ into the machine and played his voice back to a very surprised audience

1. Thomas Edison moved to.............Menlo Park, New Jersy in.....1976=>1876

2. Thomas Edisom established an industrial research laboratory in........Menlo Park, New Jersy in......1976

3. He invented...... the phonograph....while he was trying to improve a telephone repeater

4. The invention of the........phonograph happened quite......by accident

The invention of the phonograph happened quite by accident. Thomas Edison moved to Menlo Park, New Jerry in 1876, where he established an industrial research laboratory. There, Edison was working on a carbon telephone transmitter to improve the existing Bell telephone system.          In that laboratory a year later, Edison invented the phonograph while he was trying to improve a telegraph repeater. He attached a telephone diaphragm to the needle in the telegraph repeater; in this way,...
Đọc tiếp

The invention of the phonograph happened quite by accident. Thomas Edison moved to Menlo Park, New Jerry in 1876, where he established an industrial research laboratory. There, Edison was working on a carbon telephone transmitter to improve the existing Bell telephone system.

          In that laboratory a year later, Edison invented the phonograph while he was trying to improve a telegraph repeater. He attached a telephone diaphragm to the needle in the telegraph repeater; in this way, he was able to reproduce a recording that could be played back. After he made some improvements to the machine, he tested it. He recited “Mary Had a Little Lamb” into the machine and played his voice back to a very surprised audience.

1.  In what year did the invention of phonograph occur?

       A. 1876                    B. 1877                C. 1878       D. the article does not say

2. Where was Edison working to improve the existing Bell telephone system?

          A. on a telephone  B. on a transmitter C. in a telephone system. D. in a laboratory

3.  What was Edison working on when he created the phonograph?

       A. A telegraph repeater                                    B. A telegraph diaphragm

       C. A telephone repeater                                   D. A telephone diaphragm

4. What does “it” in paragraph 2 refer to?

A. improvements            B. machine            C. telegraph          D. phonograph

1
28 tháng 3 2022

B D C B

I. Read the following passage then choose the best answers below: (2,5ms) You may use the telephone everyday but how much do you know about it ? The telephone was invented by Alexander Bell in 1876. Bell was born in Scotland in 1847. Later he went to live in the USA in the 1870s. Bell was always interested in sound. He wanted to be able to send sound through a wire. He had a workshop in his house in America and did many experiments there. One day he was doing an experiment...
Đọc tiếp

I. Read the following passage then choose the best answers below: (2,5ms)

You may use the telephone everyday but how much do you know about it ? The telephone was invented by Alexander Bell in 1876. Bell was born in Scotland in 1847. Later he went to live in the USA in the 1870s. Bell was always interested in sound. He wanted to be able to send sound through a wire. He had a workshop in his house in America and did many experiments there.

One day he was doing an experiment in his workshop. He was careless and split some burning liquid onto his clothes. Talking into his telephone, Bell said “ Mr. Watson, I want you to come over here, please ”. His assistant, Watson, was in another room far away from his workshop. However, he heard Bell clearly on his own telephone. Quickly, he ran to Bell’s workshop. “ Mr. Bell, I heard every word you said ! ” Watson shouted excitedly.

Bell had finally succeeded. He had invented the first telephone. Later other inventors made better ones.

30. Alexander Bell invented the telephone in ...............

A. 1847 B. 1876 C. 1877 D. 1870

31. According to the first paragraph, Bell was ………..

A. Scotsman B. American C. Canadian D. Japanese

32. In the last sentence of the second paragraph, the word “ there ” refers to ………..

A. Bell’s house B. Bell’s living room C. Bell’s workshop D. Bell’s company

1. ………….was Bell’s assistant.

A. Watson B. Thomas Edison C. Christan Andersen D. Carl Goldmark

2. What of the following is NOT mentioned in the passage?

A. When he was born.

B. When he emigrated to the USA.

C. When he invented the telephone.

D. When he died.

1
14 tháng 1 2018

I. Read the following passage then choose the best answers below: (2,5ms)

You may use the telephone everyday but how much do you know about it ? The telephone was invented by Alexander Bell in 1876. Bell was born in Scotland in 1847. Later he went to live in the USA in the 1870s. Bell was always interested in sound. He wanted to be able to send sound through a wire. He had a workshop in his house in America and did many experiments there.

One day he was doing an experiment in his workshop. He was careless and split some burning liquid onto his clothes. Talking into his telephone, Bell said “ Mr. Watson, I want you to come over here, please ”. His assistant, Watson, was in another room far away from his workshop. However, he heard Bell clearly on his own telephone. Quickly, he ran to Bell’s workshop. “ Mr. Bell, I heard every word you said ! ” Watson shouted excitedly.

Bell had finally succeeded. He had invented the first telephone. Later other inventors made better ones.

30. Alexander Bell invented the telephone in ...............

A. 1847 B. 1876 C. 1877 D. 1870

31. According to the first paragraph, Bell was ………..

A. Scotsman B. American C. Canadian D. Japanese

32. In the last sentence of the second paragraph, the word “ there ” refers to ………..

A. Bell’s house B. Bell’s living room C. Bell’s workshop D. Bell’s company

1. ………….was Bell’s assistant.

A. Watson B. Thomas Edison C. Christan Andersen D. Carl Goldmark

2. What of the following is NOT mentioned in the passage?

A. When he was born.

B. When he emigrated to the USA.

C. When he invented the telephone.

D. When he died.

A.LANGUAGE FOCUS I/ Choose the word whose underlined part is pronounced differently from that of the rest. 1. A. bought B. cough C. sight D. daughter 2. A. happy B. character C. fat D. classmate 3. A. smile B. thick C. fit D. visit 4. A. hot B. hat C. hour D. hall II/ Choose the word (A, B, C or D) that best completes the sentence. 1. A: Can you help me carry my bags, please? B: -_________. A. Certainly B. Yes, I can C. Yes, please D. No, thanks 2. Would you like ___________ a game of...
Đọc tiếp

A.LANGUAGE FOCUS
I/ Choose the word whose underlined part is pronounced differently from that of the rest.
1. A. bought B. cough C. sight D. daughter

2. A. happy B. character C. fat D. classmate
3. A. smile B. thick C. fit D. visit
4. A. hot B. hat C. hour D. hall
II/ Choose the word (A, B, C or D) that best completes the sentence.
1. A: Can you help me carry my bags, please? B: -_________.
A. Certainly B. Yes, I can C. Yes, please D. No, thanks
2. Would you like ___________ a game of chess?
A. playing B. plays C. play D. to play
3. We have learned English ___________ 2002.
A. since B. from C. in D. for
4. When were you born? - I was born ___________ 23rd March, 1998.
A. between B. in C. on D. at
5. My grandfather is not ______ enough to walk as fast as he used to.
A. strong B. strength C. stronger D. strengthen
6. When my father was young, he used to _______ tennis in the afternoons.
A. to play B. playing C. play D. plays
7. Mary hates ________, but she loves cooking.
A. to wash up B. wash up C. washing up D. washed up
8. I am sure he will enjoys ____________ on his trip.
A. herself B. ourselves C. itself D. himself
B. READING
I/ Read and choose the best option to fill in the gaps.
Can you imagine what life would be (1)______ if there were no telephone? You could not call
your friends (2) ________the phone and talk to them. When a (3)______ broke out in
(4)_________house you could not call the fire department. If somebody were sick, he could not call
a (5)______. Therefore, we should (6)______ our deep thanks (7)________Alexander Graham Bell,
a (8)______, who invented the telephone in 1876.
1. A. like B. of C. for D. as
2. A. on B.in C. at D. to
3. A. light B. fire C. sunlight D. match
4. A. his B. your C. her D. them
5. A. dentist B. farmer C. doctor D. engineer
6. A. given B. gave C. giving D. give
7. A. to B. into C. on D. at
8. A. Dutch B. Mexican C. Scotsman D. Vietnamese
II/ Read the following passage and answer the questions.
Alexander Graham Bell was born in 1847 in Edinburgh, Scotland. He moved to Canada and then
to the USA in the 1870s. In America, he worked with deaf-mutes at BostonUniversity. Soon, Bell

started experimenting with ways of transmitting speech over a long distance. This led to the
invention of the telephone. Thomas Watson was Bell's assistant. Bell and Watson introduced the
telephone in 1876. Bell demonstrated his invention at a lot of exhibitions. He died in 1922.
1. When and where was Alexander Graham Bell born?

2. What did he do when he was at BostonUniversity?

3. Who was Thomas Watson?

4. What did Bell and Watson do in 1876?

C. WRITING
I/ Rewrite these sentences as directed.
1. He is strong. He can carry that suitcase. ( use enough)

2. The doctor said: “You should take a few days off.”
 The doctor advised
3. She started learning to swim five years ago.
 She has
4. Lan said “Please give Tim this dictionary.”
 Lan told
II/ Use the given words to make sentences.
1. She / like / learn English/./

2. She / learn / this language /since 2008/./

3. She / always / want / improve her English/./

4. She / buy / an English -Vietnamese dictionary/ last week /./

0
I/ Choose the word whose underlined part is pronounced differently from that of the rest. 1. A. bought B. cough C. sight D. daughter 2. A. happy B. character C. fat D. classmate 3. A. smile B. thick C. fit D. visit 4. A. hot B. hat C. hour D. hall II/ Choose the word (A, B, C or D) that best completes the sentence. 1. A: Can you help me carry my bags, please? B: -_________. A. Certainly B. Yes, I can C. Yes, please D. No, thanks 2. Would you like ___________ a game of chess? A. playing B....
Đọc tiếp

I/ Choose the word whose underlined part is pronounced differently from that of the rest.
1. A. bought B. cough C. sight D. daughter
2. A. happy B. character C. fat D. classmate
3. A. smile B. thick C. fit D. visit
4. A. hot B. hat C. hour D. hall
II/ Choose the word (A, B, C or D) that best completes the sentence.

1. A: Can you help me carry my bags, please? B: -_________.
A. Certainly B. Yes, I can C. Yes, please D. No, thanks
2. Would you like ___________ a game of chess?
A. playing B. plays C. play D. to play
3. We have learned English ___________ 2002.
A. since B. from C. in D. for
4. When were you born? - I was born ___________ 23rd March, 1998.
A. between B. in C. on D. at
5. My grandfather is not ______ enough to walk as fast as he used to.
A. strong B. strength C. stronger D. strengthen
6. When my father was young, he used to _______ tennis in the afternoons.
A. to play B. playing C. play D. plays
7. Mary hates ________, but she loves cooking.
A. to wash up B. wash up C. washing up D. washed up
8. I am sure he will enjoys ____________ on his trip.
A. herself B. ourselves C. itself D. himself
B. READING
I/ Read and choose the best option to fill in the gaps.
Can you imagine what life would be (1)______ if there were no telephone? You could not call
your friends (2) ________the phone and talk to them. When a (3)______ broke out in
(4)_________house you could not call the fire department. If somebody were sick, he could not call
a (5)______. Therefore, we should (6)______ our deep thanks (7)________Alexander Graham Bell,
a (8)______, who invented the telephone in 1876.
1. A. like B. of C. for D. as
2. A. on B.in C. at D. to
3. A. light B. fire C. sunlight D. match
4. A. his B. your C. her D. them
5. A. dentist B. farmer C. doctor D. engineer
6. A. given B. gave C. giving D. give
7. A. to B. into C. on D. at
8. A. Dutch B. Mexican C. Scotsman D. Vietnamese
II/ Read the following passage and answer the questions.
Alexander Graham Bell was born in 1847 in Edinburgh, Scotland. He moved to Canada and then
to the USA in the 1870s. In America, he worked with deaf-mutes at BostonUniversity. Soon, Bell
started experimenting with ways of transmitting speech over a long distance. This led to the
invention of the telephone. Thomas Watson was Bell's assistant. Bell and Watson introduced the
telephone in 1876. Bell demonstrated his invention at a lot of exhibitions. He died in 1922.
1. When and where was Alexander Graham Bell born?

2. What did he do when he was at BostonUniversity?

3. Who was Thomas Watson?

4. What did Bell and Watson do in 1876?

C. WRITING
I/ Rewrite these sentences as directed.
1. He is strong. He can carry that suitcase. ( use enough)

2. The doctor said: “You should take a few days off.”
 The doctor advised
3. She started learning to swim five years ago.
 She has
4. Lan said “Please give Tim this dictionary.”
 Lan told
II/ Use the given words to make sentences.
1. She / like / learn English/./

2. She / learn / this language /since 2008/./

3. She / always / want / improve her English/./

4. She / buy / an English -Vietnamese dictionary/ last week

1
28 tháng 3 2020

I,

1. B

2. D

3. A

4. C

II,

1. A

2. D

3. A

4. C

5. A

6. C

7. C

8. D

READING

I,

1. A

2. A

3. B

4. B

5. C

6. D

7. A

8. C

II,

1. He was born in 1847 in Edinburgh, Scotland.

2. He worked with deaf-mutes.

3. He was Bell’s assistant.

4. They introduced the telephone.

Writing.

I,

1. He is strong enough to carry that suitcases.

2. The doctor advised me to take a few days off.

3. She has started learning swimming for 5 years.

4. Lan told me to give Tom this dictionary.

II;

1. She likes learning English.

2. She has learnt this language since 2008.

3. She bought an English – Vietnamese dictionary last week.

Chúc bạn học tốt.

I.Word forms: Use the correct form of the words in brackets . 1.I'll make ..............for the meeting tomorrow (arrange) 2. There was still no..........on what to do next(agree) 3. HCM City is an important ............center (commerce) 4. Michael Faraday made a lot of ................in the field of electronic(invent) 5. There was an ...............of painting at the Art gallery (exhibit) 6. Your order is ready for....... (deliver) 7. Thomas Watson was Bell's........,wasn't he?(assist) 8....
Đọc tiếp

I.Word forms:
Use the correct form of the words in brackets .
1.I'll make ..............for the meeting tomorrow (arrange)
2. There was still no..........on what to do next(agree)
3. HCM City is an important ............center (commerce)
4. Michael Faraday made a lot of ................in the field of electronic(invent)
5. There was an ...............of painting at the Art gallery (exhibit)
6. Your order is ready for....... (deliver)
7. Thomas Watson was Bell's........,wasn't he?(assist)
8. He was...............in demonstrating his inventions (success)
9. Bell demonstrated his...........at a lot of exhibitions(invent)
10. He was ask to..............how to connect with the Internet (demonstration)
11. We have to make careful............for our trip to Malaysia (arrange)
12. He is busy doing............work at the moment (experiment)
13. What led to the..............of the telephone?(invent)
14. Lan felt sad because she was...........in her job(success)
15. He likes............movies very much(act)
16. Marconi was the............of radio (invent)

1
2 tháng 9 2017

I.Word forms:
Use the correct form of the words in brackets .
1.I'll make ......ARRANGEMENT........for the meeting tomorrow (arrange)
2. There was still no.......AGREEMENT...on what to do next(agree)
3. HCM City is an important ......COMMERCIAL......center (commerce)
4. Michael Faraday made a lot of ..............INVENTIONS..in the field of electronic(invent)
5. There was an ........EXHIBITITION.......of painting at the Art gallery (exhibit)
6. Your order is ready for....DELIVERY... (deliver)
7. Thomas Watson was Bell's...ASSISTANT.....,wasn't he?(assist)
8. He was........SUCCEED.......in demonstrating his inventions (success)
9. Bell demonstrated his......INVENTIONS.....at a lot of exhibitions(invent)
10. He was ask to......DEMONSTRATE........how to connect with the Internet (demonstration)
11. We have to make careful...ARRANGEMENT.........for our trip to Malaysia (arrange)
12. He is busy doing........EXPERIENCED....work at the moment (experiment)
13. What led to the.....INVENTION.........of the telephone?(invent)
14. Lan felt sad because she was....SUCCESSFUL.......in her job(success)
15. He likes.......ACTION.....movies very much(act)
16. Marconi was the......INVENTOR......of radio (invent)

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...
Đọc tiếp

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

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?

1

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 )

Choose the letter A, B, C or D to complete the passage belowThere is a lot of controversy surrounding the invention __________ (6) the telephone. There have been court cases, books, and articles generated about the subject. Of course, Alexander Graham Bell is the father of the telephone. After all it was his design that was first __________ (7), however, he was not the first inventor to come up __________ (8) the idea of a telephone.Antonio Meucci, an Italian immigrant, began developing the...
Đọc tiếp

Choose the letter A, B, C or D to complete the passage below

There is a lot of controversy surrounding the invention __________ (6) the telephone. There have been court cases, books, and articles generated about the subject. Of course, Alexander Graham Bell is the father of the telephone. After all it was his design that was first __________ (7), however, he was not the first inventor to come up __________ (8) the idea of a telephone.

Antonio Meucci, an Italian immigrant, began developing the design of a talking telegraph or telephone __________ (9) 1849. In 1871, he filed a caveat (an announcement of an invention) for his design of a talking telegraph. Due to hardships, Meucci could not renew his caveat. His role in the invention of the telephone was overlooked until the United States House of Representatives __________ (10) a Resolution on June 11, 2002, honoring Meucci's contributions and work. You can read the resolution (107th Congress, H Res 269) on Congress.gov.

To make matters even more interesting some researchers suggest that Elisha Gray, a professor at Oberlin College, applied for a caveat of the telephone on __________ (11) same day Bell applied for his patent of the telephone- these gentlemen didn’t actually visit the Patent Office, their lawyers did __________ (12) their behalf. In Historical First Patents: The First United States Patent for Many Everyday Things (Scarecrow Press, 1994), Travis Brown, reports that Bell’s lawyer got to the patent office first. The date was February 14, 1876. He was the fifth entry of that day, __________ (13) Gray’s lawyer was 39th. Therefore, the U.S. Patent Office ___________ (14) Bell with the first patent for a telephone, US Patent Number 174,465 rather than honor Gray's caveat. _________, (15) some authors dispute this story and suggest that there was malfeasance by certain individuals at Patent Office, and possibly Bell himself.

Question 15:

A. Therefore

B. However

C. Because

D. As

1
1 tháng 10 2017

Đáp án: B

Giải thích: However đứng đầu câu mang nghĩa “tuy nhiên”

Dịch: Tuy nhiên, một vài tác giả tranh cãi câu chuyện ngày và cho rằng có sự gian lận bởi một số cá nhân ở cục sở hữu trí tuệ, và có thể là chính Bell.