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A．His ability to play the organ.B．His interest in medicine.C．His doctoral degrees in p
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What is the main idea of the passage？
听力原文： Albert Schweitzer was born in 1875 in Alsace. At that time, it was a part of Germany. [32] His generous spirit was first awakened through his training as a preacher. Besides gaining a reputation as preacher, [33] he also became respected for his ability to play the organ. [35] He was a man of many talents. His concern for other people turned his attention to medicine. He had also acquired doctoral degrees in philosophy and music. His wife took an interest in medicine also and became a nurse. Many people thought that he should remain and lecture in Europe to have a strong impact on Western civilization. Though he listened to their suggestions, he ultimately decided to follow his own conscience. This led him to Africa. [34] Albert had felt that all men should accept the responsibility of helping others. He felt particularly concerned for black Africans who had been exploited by white men. He earned the money he needed by performing on the organ and by lecturing. With this money he bought equipment and opened a hospital in Africa. He was a man of great strength who faced great problems with courage. The threat of war, the reality of imprisonment during World War One as a German citizen and the unbearable heat in Africa did not make him retreat at all. [35] He believed that a man could overcome these obstacles if he had a sense of idealism. He died in 1965.
(33)
听力原文： Under normal conditions the act of communication requires the presence of at least two persons: one who sends and one who receives the communication. In order to communicate thoughts and feelings, there must be a conventional system of signs or symbols which mean the same to the sender and the receiver. [29] The means of sending communications are too numerous and varied for systematic classification; therefore, the analysis must begin with the means of receiving communications.
Reception of communication is achieved by our senses. Sight, hearing and touch play the most important roles. Smell and taste play very limited roles. [30] Examples of visual communication are gesture and imitation. Although both frequently accompany speech, there are systems that rely solely on sight, such as those used by deaf and dumb persons. Another means of communicating visually is by signals of fire, smoke, flags or flashing lights. Feelings may be simply communicated by touch such as by handshaking, although a highly-developed system of handshaking disables blind, deaf, and dumb persons to communicate intelligently. Whistling to someone, clapping hands in a theater, and other forms of communication by sound rely upon the ear as a receiver. The most fully developed form. of auditory communication is, of course, the spoken language.
[31] The means of communication mentioned so far have two features in common: they last only a short time, and the persons involved must be relatively close to each other. Therefore, all are restricted in time and space.
(30)
A．They don't need conventional signs and symbols.B．They only require a receiver in com
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