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Read the passage and choose the best answer.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...
Đọc tiếp

Read the passage and choose the best answer.

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. 

 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

1
13 tháng 12 2018

Giải thích: Dựa vào “The echo of the sounds against the walls helps a person determine the size of the cave.”

Đáp án  D

Read the passage and choose the best answer.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...
Đọc tiếp

Read the passage and choose the best answer.

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. 

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

A. Shape.            

B. Size.                 

C. Speed.              

D. Weight.  

1
20 tháng 3 2019

Giải thích: Dựa vào “Since human eyes are not very good at determining speeds of approaching objects, radar can show a pilot how fast nearby planes are moving.”

Đáp án  C

Read the passage and choose the best answer.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...
Đọc tiếp

Read the passage and choose the best answer.

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. 

 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.

1
2 tháng 2 2019

Giải thích: Đoạn văn có nội dung nói về bản chất của hệ thống radar

Đáp án  A

Read the passage and choose the best answer.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...
Đọc tiếp

Read the passage and choose the best answer.

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. 

 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.

1
18 tháng 2 2017

Dựa vào “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.”

Đáp án  B

Read the passage and choose the best answer.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...
Đọc tiếp

Read the passage and choose the best answer.

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. 

 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.

1
10 tháng 1 2018

Giải thích: Sauk hi giải thích về bản chất của radar thì hẳn nhiên phần sau (nếu có) của bài viết sẽ nói tiếp về radar, đặc biệt là các công dụng của nó.

Đáp án  B

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 from 30 to 34.      Body language is a vital form of communication. In fact, it is believed that the various forms of body language contribute about 70 percent to our comprehension. It is important to note, however, that body language varies in different cultures. Take for example, eye movement. In the USA a child is expected to look directly at a parent or...
Đọc tiếp

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 from 30 to 34.

     Body language is a vital form of communication. In fact, it is believed that the various forms of body language contribute about 70 percent to our comprehension. It is important to note, however, that body language varies in different cultures. Take for example, eye movement. In the USA a child is expected to look directly at a parent or teacher who is scolding him/her. In other cultures the opposite is true. Looking directly at a teacher or parent in such a situation is considered a sign of disrespect.

     Another form of body language that is used differently, depending on the culture, is distance. In North America people don't generally stand as close to each other as in South America. Two North Americans who don't know each other well will keep a distance of four feet between them, whereas South Americans in the same situation will stand two to three feet apart. North Americans will stand closer than two feet apart only if they are having a confidential conversation or if there is intimacy between them.

     Gestures are often used to communicate. We point a finger, raise an eyebrow, wave an arm – or move any other part of the body – to show what we want to say. However, this does not mean that people all over the world use the same gestures to express the same meanings. Very often we find that the same gestures can communicate different meanings, depending on the country. An example of a gesture that could be misinterpreted is sticking out the tongue. In many cultures it is a sign of making a mistake, but in some places it communicates ridicule.

     The dangers of misunderstanding one another are great. Obviously, it is not enough to learn the language of another culture. You must also learn its non-verbal signals if you want to communicate successfully.

 

What is the passage mainly about?

A. The significance of non-verbal signals in America

B. Misunderstandings in communication 

C. Interpretations of gestures in different cultures

D. Non-verbal communication across cultures

1
13 tháng 3 2019

Ý chính của toàn bộ bài đọc là gì?

A. Tầm quan trọng của những tín hiệu phi lời nói ở nước Mỹ

B. Sự hiểu sai trong giao tiếp

C. Sự diễn giải điệu bộ, cử chỉ trong những nền văn hóa khác nhau

D. Sự giao tiếp phi lời nói ở các nền văn hóa khác nhau

Chọn D

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 from 28 to 34.           Body language is a vital form of communication. In fact, it is believed that the various forms of body language contribute about 70 percent to our comprehension. It is important to note, however, that body languages varies in different cultures. Take for example, eye movement. In the USA a child is expected to look directly at a...
Đọc tiếp

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 from 28 to 34.

          Body language is a vital form of communication. In fact, it is believed that the various forms of body language contribute about 70 percent to our comprehension. It is important to note, however, that body languages varies in different cultures. Take for example, eye movement. In the USA a child is expected to look directly at a parent or teacher who is scolding him/her. In other cultures the opposite is true. Looking directly at a teacher or parent in such a situation is considered a sign of disrespect.

          Another form of body language that is used differently, depending on the culture, is distance. In North America people don’t generally stand as close to each other as in South America. Two North Americans who don’t know each other well will keep a distance of four feet between them, whereas South Americans in the same situation will stand two to three feet apart. North Americans will stand closer than two feet apart only if they are having a confidential conversation or if there is intimacy between them.

          Gestures are often used to communicate. We point a finger, raise an eyebrow, wave an arm – or move any other part of the body - to show what we want to say. However, this does not mean that people all over the world use the same gestures to express the same meanings. Very often we find that the same gestures can communicate different meanings, depending on the country. An example of a gesture that could be misinterpreted is sticking out the tongue. In many cultures it is a sign of making a mistake, but in some places it communicates ridicule.

          The dangers of misunderstanding one another are great. Obviously, it is not enough to learn the language of another culture. You must also learn its non-verbal signals if you want to communicate successfully.

(Adapted from “Reading Academic English” by Judy Rapoport, Ronit Broder and Sarah Feingold)

What is the passage mainly about?

A. Misunderstandings in communication. 

B. Interpretations of gestures in different cultures. 

C. The significance of non-verbal signals in America. 

D. Non-verbal communication across cultures.

1
13 tháng 7 2017

Chọn đáp án D

What is the passage mainly about?: Nội dung chính của đoạn văn là gì?

A. Misunderstandings in communication: Sự hiểu nhầm trong giao tiếp

B. Interpretations of gestures in different cultures: Sự giải mã ý nghĩa các cử chỉ động tác trong các nền văn hóa khác nhau.

C. The significance of non-verbal signals in America: Tầm quan trọng của các dấu hiệu phi lời ở nước Mỹ

D. Non-verbal communication across cultures: Giao tiếp phi lời qua các nền văn hóa

Dẫn chứng (đoạn 1): Body language is a vital form of communication. In fact, it is believed that the various forms of body language contribute about 70 percent to our comprehension. It is important to note, however, that body language varies in different cultures: Ngôn ngữ cơ thể là một loại hình giao tiếp quan trọng. Thực tế, người ta tin rằng các hình thức khác nhau của ngôn ngữ cơ thể chiếm khoảng 70% sự lĩnh hội của chúng ta. Tuy nhiên cần chú ý rằng ngôn ngữ cơ thể cũng khác nhau ở các nền văn hóa khác nhau.

Ta thấy ngay đầu đoạn đầu tiên tác giả đã nhấn mạnh việc ngôn ngữ cơ thể có sự khác nhau ở các nền văn hóa khác nhau. Các đoạn văn tiếp theo làm rõ hơn sự đa dạng này của ngôn ngữ cơ thể cũng như cử chỉ, động tác – các hình thức giao tiếp phi lời. Vậy ở đây phương án phù hợp nhất là D.

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 from 30 to 34. Body language is a vital form of communication. In fact, it is believed that the various forms of body language contribute about 70 percent to our comprehension. It is important to note, however, that body language varies in different cultures. Take for example, eye movement. In the USA a child is expected to look directly at a parent or...
Đọc tiếp

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 from 30 to 34.

Body language is a vital form of communication. In fact, it is believed that the various forms of body language contribute about 70 percent to our comprehension. It is important to note, however, that body language varies in different cultures. Take for example, eye movement. In the USA a child is expected to look directly at a parent or teacher who is scolding him/her. In other cultures the opposite is true. Looking directly at a teacher or parent in such a situation is considered a sign of disrespect.

Another form of body language that is used differently, depending on the culture, is distance. In North America people don't generally stand as close to each other as in South America. Two North Americans who don't know each other well will keep a distance of four feet between them, whereas South Americans in the same situation will stand two to three feet apart. North Americans will stand closer than two feet apart only if they are having a confidential conversation or if there is intimacy between them.

Gestures are often used to communicate. We point a finger, raise an eyebrow, wave an arm – or move any other part of the body – to show what we want to say. However, this does not mean that people all over the world use the same gestures to express the same meanings. Very often we find that the same gestures can communicate different meanings, depending on the country. An example of a gesture that could be misinterpreted is sticking out the tongue. In many cultures it is a sign of making a mistake, but in some

places it communicates ridicule.

The dangers of misunderstanding one another are great. Obviously, it is not enough to learn the language of another culture. You must also learn its non-verbal signals if you want to communicate successfully.

What is the passage mainly about?

A. The significance of non-verbal signals in America

B. Misunderstandings in communication

C. Interpretations of gestures in different cultures

D. Non-verbal communication across cultures

1
9 tháng 1 2019

Ý chính của toàn bộ bài đọc là gì?

A. Tầm quan trọng của những tín hiệu phi lời nói ở nước Mỹ

B. Sự hiểu sai trong giao tiếp

C. Sự diễn giải điệu bộ, cử chỉ trong những nền văn hóa khác nhau

D. Sự giao tiếp phi lời nói ở các nền văn hóa khác nhau

Chọn D

Read the passage and choose the best answer.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...
Đọc tiếp

Read the passage and choose the best answer.

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. 

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

A. argumentative

B. explanatory 

C. humorous 

D. imaginative

1
9 tháng 6 2019

Đoạn văn được viết như để giải thích cho người đọc về bản chất của radar, vậy nên có tính chất giảng giải, giải thích cho vấn đề => Explanatory

Đáp án  B