Câu hỏi:
09/08/2023 643
Read the passage and choose the best option to each question
Since the dawn of time, people have found ways to communicate with one another. Smoke signals and tribal drums were some of the earliest forms of communication. Letters, carried by birds or by humans on foot or on horseback, made it possible for people to communicate larger amounts of information between two places. The telegraph and telephone set the stage for more modern means of communication. With the invention of the cellular phone, communication itself has become mobile. For you, a cell phone is probably just a device that you or your friends use to keep in touch with family and friends, take pictures, play games, or send text messages. The definition of a cell phone is more specific: it is a hand-held wireless communication device that sends and receives signals by way of small special areas called cells. Walkie-talkies, telephones, and cell phones are duplex communication devices: they make it possible for two people to talk to each other. Cell phones and walkie-talkies are different from regular phones, because they can be used in many different locations. A walkie-talkie is sometimes called a half-duplex communication device, because only one person can talk at a time. A cell phone is a full-duplex device because it uses both frequencies at the same time. A walkie-talkie has only one channel. A cell phone has more than a thousand channels. A walkie-talkie can transmit and receive signals across a distance of about a mile. A cell phone can transmit and receive signals over hundreds of miles. In 1973, an electronic company called Motorola hired Martin Cooper to work on wireless communication. Motorola and Bell Laboratories (now AT&T) were in a race to invent the first portable communication device. Martin Cooper won the race and became the inventor of the cell phone. On April 3, 1973, Cooper made the first cell phone call to his opponent at AT&T while walking down the streets of New York City. People on the sidewalks gazed at Cooper in amazement as he walked down the street talking on his cellular phone. Cooper’s phone was called Motorola Dyna-Tac. It weighed a whooping 2 ½ pounds (as compared to today’s cell phones that weigh as little as 3 or 4 ounces). After the invention of his cell phone, Cooper began thinking of ways to make the cell phone available to the general public. After ten years, Motorola introduced the first cell phones for commercial use. The early cell phone and its service were both very expensive. The cell phone itself cost about $3,500. In 1977, AT&T constructed a cell phone system and tried it out in Chicago with over 2,000 customers. In 1981, a second cellular phone system was started in the Washington, D.C. and Baltimore area. It took nearly 37 years for cell phones to become available for general public use. Today there are more than sixty million cell phone customers with cell phones producing over thirty billion dollars per year.
Read the passage and choose the best option to each question
Since the dawn of time, people have found ways to communicate with one another. Smoke signals and tribal drums were some of the earliest forms of communication. Letters, carried by birds or by humans on foot or on horseback, made it possible for people to communicate larger amounts of information between two places. The telegraph and telephone set the stage for more modern means of communication. With the invention of the cellular phone, communication itself has become mobile. For you, a cell phone is probably just a device that you or your friends use to keep in touch with family and friends, take pictures, play games, or send text messages. The definition of a cell phone is more specific: it is a hand-held wireless communication device that sends and receives signals by way of small special areas called cells. Walkie-talkies, telephones, and cell phones are duplex communication devices: they make it possible for two people to talk to each other. Cell phones and walkie-talkies are different from regular phones, because they can be used in many different locations. A walkie-talkie is sometimes called a half-duplex communication device, because only one person can talk at a time. A cell phone is a full-duplex device because it uses both frequencies at the same time. A walkie-talkie has only one channel. A cell phone has more than a thousand channels. A walkie-talkie can transmit and receive signals across a distance of about a mile. A cell phone can transmit and receive signals over hundreds of miles. In 1973, an electronic company called Motorola hired Martin Cooper to work on wireless communication. Motorola and Bell Laboratories (now AT&T) were in a race to invent the first portable communication device. Martin Cooper won the race and became the inventor of the cell phone. On April 3, 1973, Cooper made the first cell phone call to his opponent at AT&T while walking down the streets of New York City. People on the sidewalks gazed at Cooper in amazement as he walked down the street talking on his cellular phone. Cooper’s phone was called Motorola Dyna-Tac. It weighed a whooping 2 ½ pounds (as compared to today’s cell phones that weigh as little as 3 or 4 ounces). After the invention of his cell phone, Cooper began thinking of ways to make the cell phone available to the general public. After ten years, Motorola introduced the first cell phones for commercial use. The early cell phone and its service were both very expensive. The cell phone itself cost about $3,500. In 1977, AT&T constructed a cell phone system and tried it out in Chicago with over 2,000 customers. In 1981, a second cellular phone system was started in the Washington, D.C. and Baltimore area. It took nearly 37 years for cell phones to become available for general public use. Today there are more than sixty million cell phone customers with cell phones producing over thirty billion dollars per year.
What is the main idea of the passage?
Đáp án chính xác
Câu hỏi trong đề:
Bộ 20 đề ôn thi vào Chuyên Anh năm 2023 cực hay có lời giải !!
Sách mới 2k7: Tổng ôn Toán, Lí, Hóa, Văn, Sử, Địa…. kỳ thi tốt nghiệp THPT Quốc gia 2025, đánh giá năng lực (chỉ từ 110k).
Quảng cáo
Trả lời:
Giải bởi Vietjack
Chọn D
Câu hỏi cùng đoạn
Câu 2:
What definition is true of a cell phone?
Đáp án chính xác
Lời giải của GV VietJack
Chọn C
Câu 3:
What is wrong about a walkie-talkie?
Đáp án chính xác
Lời giải của GV VietJack
Chọn A
Câu 4:
The word “duplex” in line 10 is closest in meaning to
The word “duplex” in line 10 is closest in meaning to
Đáp án chính xác
Lời giải của GV VietJack
Chọn B
Câu 5:
To whom did Cooper make his first cell phone call?
Đáp án chính xác
Lời giải của GV VietJack
Chọn A
Câu 6:
How heavy is the first cell phone compared to today’s cell phones?
How heavy is the first cell phone compared to today’s cell phones?
Đáp án chính xác
Lời giải của GV VietJack
Chọn B
Câu 7:
When did Motorola introduce the first cell-phones for commercial use?
When did Motorola introduce the first cell-phones for commercial use?
Đáp án chính xác
Lời giải của GV VietJack
Chọn D
Câu 8:
When did AT&T widely start their cellular phone system?
When did AT&T widely start their cellular phone system?
Đáp án chính xác
Lời giải của GV VietJack
Chọn C
Câu 9:
What does the word “gazed” in line 21mean?
Đáp án chính xác
Lời giải của GV VietJack
Chọn A
Câu 10:
The phrase tried it out in the last paragraph refers to?
The phrase tried it out in the last paragraph refers to?
Đáp án chính xác
Lời giải của GV VietJack
Chọn B
Nhà sách VIETJACK:
CÂU HỎI HOT CÙNG CHỦ ĐỀ
Câu 1:
It is not surprising that actors want to be pop stars and vice versa. (1) ..................... that is deep in a part of our brain that most of us manage to keep under control, we all want to be pop stars and actors.
Xem đáp án »
29/05/2023
4,755
Câu 2:
After the accident, there was considerable doubt ............. exactly what had happened.
Xem đáp án »
29/05/2023
2,712
Câu 3:
Pick out the word whose underlined part is pronounced differently
Pick out the word whose underlined part is pronounced differently
Xem đáp án »
29/05/2023
2,666
Câu 4:
Don’t you remember anything about your lifetime in London as a child? ( recollection)
Don’t you remember anything about your lifetime in London as a child? ( recollection)
Xem đáp án »
29/05/2023
2,378
Câu 5:
“ I don’t mind where the money goes as long as the people are the real beneficiaries.” ( matter)
“ I don’t mind where the money goes as long as the people are the real beneficiaries.” ( matter)
Xem đáp án »
29/05/2023
1,876
Câu 6:
There are 10 mistakes in the following passage. Find them and correct them
Many different kinds of insurance are available to deaf people today but weren’t in past. It was the year 1898 that an insurance company for deaf people was born. A small group of young deaf man had a meeting in this year. They were all worried. At that time, only deaf people were not allowed to buy insurance. The group worked hard during the three years making research. They were ready for action at the second meeting. That meeting was historic because the men found the Fraternal Society of the Deaf. The first few years on the Fraternal Society of the Deaf were difficult. There was no money for an office, so they worked in their home. Since the company was very young, there was no money to pay for deadly benefits. If a member passed away, each of the other members gave one dollar to help pay for burial costs. As time passed by, the company grew. As it grew, the benefits improved. Health insurance has added. In 1905, the first office opened in Chicago, Illinois. In 1907, the name of the company changed. The new name, still is used today, was the National Fraternal Society of the Deaf, NFSD.
There are 10 mistakes in the following passage. Find them and correct them
Many different kinds of insurance are available to deaf people today but weren’t in past. It was the year 1898 that an insurance company for deaf people was born. A small group of young deaf man had a meeting in this year. They were all worried. At that time, only deaf people were not allowed to buy insurance. The group worked hard during the three years making research. They were ready for action at the second meeting. That meeting was historic because the men found the Fraternal Society of the Deaf. The first few years on the Fraternal Society of the Deaf were difficult. There was no money for an office, so they worked in their home. Since the company was very young, there was no money to pay for deadly benefits. If a member passed away, each of the other members gave one dollar to help pay for burial costs. As time passed by, the company grew. As it grew, the benefits improved. Health insurance has added. In 1905, the first office opened in Chicago, Illinois. In 1907, the name of the company changed. The new name, still is used today, was the National Fraternal Society of the Deaf, NFSD.
Xem đáp án »
29/05/2023
1,715
Câu 7:
You are going to read a newspaper article about sleep. Five paragraphs have been removed from the article. Choose from the paragraphs A – F the one which fits each gap (1 – 5). There is one extra paragraph which you do not need to use.
Enough Sleep?
Tiredness, it is often claimed, has become the modern conditions. As the richer, busier countries have grown, so sleeplessness and anxiety have also grown in the popular psyche. Research in the USA has found 40 million Americans to be chronically affected, and some recent best-selling novels in Britain have featured insomniacs as protagonists, or sleep-research laboratories as their settings.
However, there is a strong degree of certainty among scientists that women sleep for half an hour longer than men, and that older people require less sleep, though they don’t know why. When asked what sleep is for, some sleep researchers reply in cosmic terms: “Sleep is a tactic to travel through time without injury.”
_______________________________________________________________________________________
A. Beyond this, certainties blur into theories. It is often suggested, for example, that sleep repairs body tissue, or restores muscles, or rests the frontal section of the brain that controls speech and creativity. But all of this may happen more quickly during relaxed wakefulness, so no one is really sure.
B. Part of this interest is in sleep in general: in its rhythms, its uses and in problems with sleeping. But a central preoccupation remains. “People need more sleep,” says one leading sleep researcher. “People cut back on sleep when they’re busy. They get up too early to avoid rush hour.”
C. The sleep researchers seem interested in this theory. But the laboratory is not funded to investigate such matters. Its sponsors what its research to lead to practical solutions such as deciding where Take a break signs should be placed on motorways, and how different kinds of food and drink can affect driving and sleeplessness.
D. A coffee might have helped. Two cups, Dr. Reyner says, even after no sleep at all, can make you a safe driver for half an hour or more. She recommends a whole basket of alertness products: tablets, energy drinks, caffeinated chewing gum. Shift workers, she is quite sure, could probably use them.
E. In fact, the laboratory’s interest is more physical. In a darkened room stands a motorway simulator, the front section of a car facing a wide projection screen. The subjects are always told to arrive at 2pm, in the body’s natural mid-afternoon lull, after a short night’s sleep or no sleep at all. The projector is switched on and they are asked to drive, while answering questions. An endless road rolls ahead, sunlight glares; and the air is warm.
F. In Europe, such propositions are perhaps most thoroughly tested in a small, unassuming building on a university campus in the English midlands. The university sleep research laboratory has investigated, among many subjects, the effects of fatigue on sailors, the effects of airport noise on sleepers, and the dangers of motorway driving for flagging drivers.
You are going to read a newspaper article about sleep. Five paragraphs have been removed from the article. Choose from the paragraphs A – F the one which fits each gap (1 – 5). There is one extra paragraph which you do not need to use.
Enough Sleep?
Tiredness, it is often claimed, has become the modern conditions. As the richer, busier countries have grown, so sleeplessness and anxiety have also grown in the popular psyche. Research in the USA has found 40 million Americans to be chronically affected, and some recent best-selling novels in Britain have featured insomniacs as protagonists, or sleep-research laboratories as their settings.
However, there is a strong degree of certainty among scientists that women sleep for half an hour longer than men, and that older people require less sleep, though they don’t know why. When asked what sleep is for, some sleep researchers reply in cosmic terms: “Sleep is a tactic to travel through time without injury.”
_______________________________________________________________________________________
A. Beyond this, certainties blur into theories. It is often suggested, for example, that sleep repairs body tissue, or restores muscles, or rests the frontal section of the brain that controls speech and creativity. But all of this may happen more quickly during relaxed wakefulness, so no one is really sure.
B. Part of this interest is in sleep in general: in its rhythms, its uses and in problems with sleeping. But a central preoccupation remains. “People need more sleep,” says one leading sleep researcher. “People cut back on sleep when they’re busy. They get up too early to avoid rush hour.”
C. The sleep researchers seem interested in this theory. But the laboratory is not funded to investigate such matters. Its sponsors what its research to lead to practical solutions such as deciding where Take a break signs should be placed on motorways, and how different kinds of food and drink can affect driving and sleeplessness.
D. A coffee might have helped. Two cups, Dr. Reyner says, even after no sleep at all, can make you a safe driver for half an hour or more. She recommends a whole basket of alertness products: tablets, energy drinks, caffeinated chewing gum. Shift workers, she is quite sure, could probably use them.
E. In fact, the laboratory’s interest is more physical. In a darkened room stands a motorway simulator, the front section of a car facing a wide projection screen. The subjects are always told to arrive at 2pm, in the body’s natural mid-afternoon lull, after a short night’s sleep or no sleep at all. The projector is switched on and they are asked to drive, while answering questions. An endless road rolls ahead, sunlight glares; and the air is warm.
F. In Europe, such propositions are perhaps most thoroughly tested in a small, unassuming building on a university campus in the English midlands. The university sleep research laboratory has investigated, among many subjects, the effects of fatigue on sailors, the effects of airport noise on sleepers, and the dangers of motorway driving for flagging drivers.
Xem đáp án »
29/05/2023
1,351
về câu hỏi!