【文章內(nèi)容簡介】 )refers to . A. sports activities B. hunting C. farmers D. prey killing 5. Which of the following is true according to the passage? A. The goalmouth is equal to the weapon in hunting. B. Without hunting our forefathers couldn’t live. C. After our forefathers became farmers they still hunted for food. D. Farmers are satisfied with stable lives and they didn’t have enthusiasm for hunting any more Passage 5A man once said how useless it was to put advertisements in the newspapers. “Last week,” he said, my umbrella was stolen from a London church. As it was a present, I spent twice its worth in advertising, but didn’t get it back.“How did you write your advertisement?” asked one of the listeners, a merchant. “Here it is,” said the man, taking out of his pocket a slip cut from a newspaper, The other man took it and read, “Lost from the City Church last Sunday evening, a black silk umbrella. The gentleman who finds it will receive ten shillings on leaving it at No. 10 Broad Street.”“Now,” said the merchant, “I often advertise, and find that it pays me well. But the way in which an advertisement is expressed is of extreme importance. Let us try for your umbrella again, and if it fails, I’ll buy you a new one.”The merchant then took a slip of paper out of his pocket and wrote: “If the man who was seen to take an umbrella from the City Church last Sunday evening doesn’t wish to get into trouble, he will return the umbrella to Broad Street. He is well known.”This appeared in the paper, and on the following morning, the man was astonished when the opened the front door. In the doorway lay at least twelve umbrellas of all sizes and colors that had been thrown in, and his own was among the number. Many of them had notes fastened to them saying that they hand been taken by mistake, and begging the loser not to say anything about the matter.1. The man once thought advertising was _______.A. of little use B. of some useC. practical D. valuable2. The result of the first advertisement was that______.A. the man got his umbrella backB. the man wasted some money advertisingC. nobody found the missing umbrellaD. the umbrella was found somewhere near the church3. The merchant suggested that the man should_______.A. buy a new umbrella B. go on looking for his umbrellaC. write another better advertisement. D. report to the police4. Why did the merchant say “I often advertise and find that it pays me well”?A. He knew how to advertiseB. He had more money for advertisingC. He found it easy to advertise.D. He had a friend in the newspaper where he advertised.5. This is a story about _________.A. a useless advertisementB. how to make an effective advertisementC. how the man lost and found his umbrellaD. what the merchant did for the umbrella ownerPassage 6The great advance in rocker theory 40 years ago shows that liquidfuel rockets were far superior in every respect to the skyrocket with its weak solid fuel. However, during the decade, large solidfuel rockets with solid fuels about as powerful as liquid fuels have made their appearance, and it is a favorite layman’s question to inquire which one is “better”. The question is meaningless. One might as well ask whether a gasoline or a diesel engine is “better”. It all depends on the purpose, a liquidfuel rocket is plicated, but has the advantage that it can be controlled beautifully. The burning of the rocket engine can be stopped pletely: it can be reignited when desired. In addition, the thrust can be made to vary by adjusting the speed of the fuel pumps. A solidfuel rocket, on the other hand, is rather simple in construction, though hard to build when a really at very short notice. A liquidfuel rocket has to be fueled first and cannot be held in readiness for very long after it has been fueled. However, once a solidfuel rocket has been ignited, it will keep burning. It cannot be stopped and reignited whenever desired and its thrust cannot be varied. Because a solidfuel rocket can be kept ready for a long time, most military employ solid fuels, but manned spaceflight needs the fine adjustments that can only be provided by liquid fuels. It may be added that a liquidfuel rocket is an expensive device。 a large solidfuel rocket is, by parison, cheap. But the solid fuel, pound per pound, costs about 10 times as much as the liquid fuel. So you have, on the one hand, an expensive rocket with a cheap fuel and on the other hand a paratively cheap rocket with an expensive fuel.1. The author feels that a parison of liquidfuel and solidfuel rockets shows that _______. A. neither type is very economical B. the liquidfuel rocket is best C. each type has certain advantages D. the solidfuel rocket is best.2. The most important consideration for manned space flight is that the rocket be_____.A. inexpensive to construct B. capable of lifting heavy space shift into orbitC. easily controlled D. inexpensive to operate3. Solidfuel rockets are expensive to operate because of their_______.A. size B. fuel C. construction D. plicated engines4. Which of the following statements is not characteristic of liquidfuel rockets?A. the fuel is cheap B. they are cheap to build.C. they can be stopped and reignited. D. they must be used soon after fueling.5. The author tells us that_______.A. whether a liquidfuel or a solidfuel rocket is better depends on the purposeB. neither type is superiorC. forty years ago, large solidfuel rockets with solidfuel as powerful as liquid fuels were madeD. the thrust can be made to vary by adjusting the direction of the pumpPassage 7As a medium of exchange, money permits the separation of exchange into the two distinct acts of buying and selling. Hence producers who know they will be paid in money, can concentrate on find