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W: Come on，David. Why so negative？ We're thinking of buying a home, aren't we？ Just a trip to look at the place won't cost us much.
Q: What can be inferred from the conversation？
(18)
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Sharks eat their food by ______？
A．To find out if he has the flu.B．To find out how to maintain a nutritious diet.C．To f
For me, scientific knowledge is divided into mathematical sciences, natural sciences or sciences dealing with natural world, and sciences dealing with mankind. Apart from these sciences is philosophy. All this is pure or【C1】______ knowledge, sought only for the【C2】______ of understanding in order to fulfill the need to understand what is intrinsic and consubstantial (同质的) to man. What【C3】______ man from animal is that he knows and needs to know. If man did not know that the world existed, and that the【C4】______ was of a certain kind, that he was in the world and that he himself was of a certain kind, he wouldn't be man. The technical aspects or applications of knowledge are equally necessary for man and are of the greatest importance,【C5】______ they also contribute to【C6】______ him as man and permit him to 【C7】______ a life increasingly more truly human.
【C8】______ even while enjoying the results of technical progress,【C9】______ must defend the primacy and autonomy of our knowledge. Knowledge sought【C10】______ for its practical applications will have immediate and【C11】______ success, but not the kind of important result【C12】______ revolutionary scope is in large part unforeseen, except by the imagination of the Utopians. Let me recall a well-known example. If the Greek mathematicians had not applied themselves【C13】______ investigation of conic (二次曲线) sections zealously and without the least suspicion【C14】______ it might someday be useful, it would not have been possible【C15】______ later to navigate far from shore. The first man to study the nature of electricity could not imagine that their experiments, carried on because of mere【C16】______ curiosity, would eventually lead to modern electrical technology, without which we can scarcely【C17】______ of contemporary life. Pure knowledge is valuable for its own sake, because the human spirit cannot【C18】______ itself to ignorance. But,【C19】______ it is the foundation for practical results that would not have been reached if this knowledge had not been sought【C20】______ .
【C1】
听力原文： Everyone knows about the Royal Canadian Mounted Police, but (29) nowadays the romantic red uniform. jacket is only worn on special occasions, and the famous horses are rarely seen. So the "Mountie", as a member of this police force is known, is not, in fact, often mounted except on a powerful motor-cycle. (30)He is a member of a very modern and efficient organization.
The Royal Canadian Mounted Police has responsibility for an enormous area, from the U.S. border up to the vast ice-fields and frozen lakes. (30)A mountie may work in the Headquarters building in Ottawa. He may pilot a patrol plane across the snow-deserts in the north. He may be doing customs work at the frontier. He may be in plain clothes watching for s suspicious character at an airport, or he may simply be driving a patrol-car.
There are more than ten thousand men in this force, and it was one of these who was responsible for the arrest of James Earl Ray. Police all over the world were looking for Ray after the murder of Martin Luther King. In June 1968, a group of policemen in Canada were doing routine work with applications for passports. Suddenly one man noticed a photo which looked very much like Ray. The name was different, but the resemblance was so strong that (31) the police started to investigate. They discovered that the man had already gone to Britain. The photograph and the finger-prints were sent to the British police, who arrested Ray at London Airport, when he was just going to get on a plane for Brussels. The murder that had shocked the world was solved by a mountie on Ottawa.
(30)
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