The word "means" in the passage most closely means A. transmission B. method C. meanings D. expression

LQ

Lê Quỳnh Anh

31 tháng 1 2019

The phrase “latchkey children” in the passage means children who.

A. are locked inside houses with latches and keys

B. like to carry latches and keys with them everywhere

C. look after themselves while their parents are not at home

D. close doors with keys and watch TV by themselves

#Tiếng anh thí điểm lớp 12

1

DH

Dương Hoàn Anh

31 tháng 1 2019

Đáp án C

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LQ

Lê Quỳnh Anh

20 tháng 12 2017

The phrase “an empty house” in the passage mostly means

A. a house with no people inside

B. a house with nothing inside

C. a house with no furniture

D. a house with too much space

#Tiếng anh thí điểm lớp 12

1

DH

Dương Hoàn Anh

20 tháng 12 2017

Đáp án A

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CA

Cookie ~ A.R.M.Y

10 tháng 6 2019

Choose from A, B, C, or D the one that best answers each of the questions. A pilot cannot fly by sight alone. In many conditions, such as flying at night and landing in dense fog, a pilot must use radar, an alternative way of navigating. Since human eyes are not very good at determining speeds of approaching objects, radar can show a pilot how fast nearby planes are moving. The basic principle of radar is exemplified by what happens when one shouts in a cave. The echo of the sounds...

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Choose from A, B, C, or D the one that best answers each of the questions. A pilot cannot fly by sight alone. In many conditions, such as flying at night and landing in dense fog, a pilot must use radar, an alternative way of navigating. Since human eyes are not very good at determining speeds of approaching objects, radar can show a pilot how fast nearby planes are moving. The basic principle of radar is exemplified by what happens when one shouts in a cave. The echo of the sounds against the walls helps a person determine the size of the cave. With radar, however, the waves are radio waves instead of sound waves. Radio waves travel at the speed of light, about 300,000 kilometers in one second. A radar set sends out a short burst of radio waves. Then it receives the echoes produced when the waves bounce off objects. By determining the time it takes for the echoes to return to the radar set, a trained technician can determine the distance between the radar set and other objects. The word “radar”, in fact, gets its name from the term “radio detection and ranging”. “Ranging” is the term for detection of the distance between an object and the radar set. Besides being of critical importance to pilots, radar is essential for air traffic control, tracking ships at sea, and for tracking weather systems and storms. 51. What is the main topic of this passage? A. The nature of radar. B. History of radar. C. Alternatives to radar. D. Types of ranging. 52. According to the passage, what can radar detect besides location of objects? A. Shape B. Size C. Speed D. Weight 53. The word “exemplified” in the passage can be replaced by_________. A. “specified” B. “resembled” C. “illustrated” D. “justified” 54. The word “shouts” in the passage most closely means_________. A. “exclaims” B. “yells” C. “shoots” D. “whispers” 55. Which of the following words best describes the tone of this passage? A. argumentative B. explanatory C. humorous D. imaginative 56. According to the passage, the distance between a radar set and an object can be determined by_________. A. the time it takes for a burst of radio waves to produce echoes when the waves bounce off the object B. the term “ranging” used for detection of the distance between an object and the radar set C. the time it takes for the radio waves to produce echoes and bounce off the object D. the time it takes for the echoes produced by the radio waves to return to the radar set 57. Which type of waves does radar use? A. tidal B. sound C. heat D. radio 58. The word “tracking” in the passage most closely means_________. A. sending B. searching for C. ranging D. repairing 59. Which of the following would most likely be the topic of the next paragraph? A. A history of flying. B. Other uses of radar. C. The technology used by pilots. D. Uses of some technology. 60. What might be inferred about radar? A. It takes the place of a radio. B. It has improved navigational safety. C. It was developed from a study of sound waves. D. It gave birth to the invention of the airplane.

#Tiếng anh thí điểm lớp 12

1

VN

Vũ Như Quỳnh

10 tháng 6 2019

Choose from A, B, C, or D the one that best answers each of the questions.

A pilot cannot fly by sight alone. In many conditions, such as flying at night and landing in dense fog, a pilot must use radar, an alternative way of navigating. Since human eyes are not very good at determining speeds of approaching objects, radar can show a pilot how fast nearby planes are moving. The basic principle of radar is exemplified by what happens when one shouts in a cave. The echo of the sounds against the walls helps a person determine the size of the cave. With radar, however, the waves are radio waves instead of sound waves. Radio waves travel at the speed of light, about 300,000 kilometers in one second. A radar set sends out a short burst of radio waves. Then it receives the echoes produced when the waves bounce off objects. By determining the time it takes for the echoes to return to the radar set, a trained technician can determine the distance between the radar set and other objects. The word “radar”, in fact, gets its name from the term “radio detection and ranging”. “Ranging” is the term for detection of the distance between an object and the radar set. Besides being of critical importance to pilots, radar is essential for air traffic control, tracking ships at sea, and for tracking weather systems and storms.

51. What is the main topic of this passage?

A. The nature of radar. B. History of radar. C. Alternatives to radar. D. Types of ranging.

52. According to the passage, what can radar detect besides location of objects?

A. Shape B. Size C. Speed D. Weight

53. The word “exemplified” in the passage can be replaced by_________.

A. “specified” B. “resembled” C. “illustrated” D. “justified”

54. The word “shouts” in the passage most closely means_________.

A. “exclaims” B. “yells” C. “shoots D. “whispers”

55. Which of the following words best describes the tone of this passage?

A. argumentative B. explanatory C. humorous D. imaginative

56. According to the passage, the distance between a radar set and an object can be determined by_________.

A. the time it takes for a burst of radio waves to produce echoes when the waves bounce off the object

B. the term “ranging” used for detection of the distance between an object and the radar set

C. the time it takes for the radio waves to produce echoes and bounce off the object

D. the time it takes for the echoes produced by the radio waves to return to the radar set

57. Which type of waves does radar use?

A. tidal B. sound C. heat D. radio

58. The word “tracking” in the passage most closely means_________.

A. sending B. searching for C. ranging D. repairing

59. Which of the following would most likely be the topic of the next paragraph?

A. A history of flying. B. Other uses of radar. C. The technology used by pilots. D. Uses of some technology.

60. What might be inferred about radar?

A. It takes the place of a radio. B. It has improved navigational safety. C. It was developed from a study of sound waves. D. It gave birth to the invention of the airplane.

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#Yumi

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LQ

Lê Quỳnh Anh

2 tháng 1 2020

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.Millions of people are using cell phones today. In many places, it is actually considered unusual not to use one. In many countries, cell phones are very popular with young people. They find that the phones are more than a means of communication - having a mobile phone shows that they are cool and connected.The explosion in mobile phone use around the world...

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Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.

Millions of people are using cell phones today. In many places, it is actually considered unusual not to use one. In many countries, cell phones are very popular with young people. They find that the phones are more than a means of communication - having a mobile phone shows that they are cool and connected.

The explosion in mobile phone use around the world has made some health professionals worried. Some doctors are concerned that in the future many people may suffer health problems from the use of mobile phones. In England, there has been a serious debate about this issue. Mobile phone companies are worried about the negative publicity of such ideas. They say that there is no proof that mobile phones are bad for your health.

On the other hand, medical studies have shown changes in the brain cells of some people who use mobile phones. Signs of change in the tissues of the brain and head can be detected with modern scanning equipment. In one case, a travelling salesman had to retire at young age because of serious memory loss. He couldn't remember even simple tasks. He would often forget the name of his own son. This man used to talk on his mobile phone for about six hours a day, every day of his working week, for a couple of years. His family doctor blamed his mobile phone use, but his employer's doctor didn't agree. What is it that makes mobile phones potentially harmful? The answer is radiation. High- tech machines can detect very small amounts of radiation from mobile phones. Mobile phone companies agree that there is some radiation, but they say the amount is too small to worry about.

As the discussion about their safety continues, it appears that it's best to use mobile phones less often. Use your regular phone if you want to talk for a long time. Use your mobile phone only when you really need it. Mobile phones can be very useful and convenient, especially in emergencies. In the future, mobile phones may have a warning label that says they are bad for your health. So for now, it's wise not to use your mobile phone too often

The word "means" in the passage most closely means

A. transmission

B. method

C. meanings

D. expression

#Tiếng anh thí điểm lớp 12

1