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 following questions.
Although speech is the most advanced form of communication, there are many ways of communicating without using speech. Signals, signs, symbols, and gestures may be found in every known culture. The basic function of signal is to impinge upon the environment in such a way that it attracts attention, as. For example, the dots and dashes of a telegraph circuit. Coded to refer to speech, the potential for communication is very great. Less adaptable to the codiíication of words, signs also contain meaning in and of themselves. A stop sign or a barber pole conveys meaning quickly and conveniently. Symbols are more difficult to describe than either signals or signs because of their intricate relationship with the receiver’s cultural perceptions. In some cultures, applauding in a theater provides performers with an auditory symbol of approval. Gestures such as waving and handshaking also communicate certain cultural messages.
Although signals, signs, symbols, and gestures are very useful, they do have a major disadvantage. They usually do not allow ideas to be shared without the sender being directly adjacent to the receiver. As a result, means of communication intended to be used for long distances and extended periods are based upon speech. Radio, television, and the telephone are only a few.
According to the passage, what is a signal?
A. A form of communication that interrupts the environment.
B. The most difficult form of communication to describe.
C. A form of communication which may be used across long distances.
D. The form of communication most related to cultural perception.
Đáp án là C
Ý trong bài: The basic function of signal is to impinge upon the environment in such a way that it attracts attention, Các chức năng cơ bản của tín hiệu là để đụng chạm vào môi trường theo cách mà nó thu hút sự chú ý, => có thể được sử dụng ở khoảng cách xa.