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He must use this surplus in three ways:as seed for sowing,as an insurance（ ）the unpredictable effects of bad weather and as a commodity which he must sell in order to replace old agricultural implements and obtain chemical fertilizers to feed the soil.
A.for
B.against
C.of
D.towards
B.against
C.of
D.towards
参考答案
参考解析
解析：当名词insurance表示“保险，保护”之意时，后面搭配的介词为against。
更多 “He must use this surplus in three ways:as seed for sowing,as an insurance（ ）the unpredictable effects of bad weather and as a commodity which he must sell in order to replace old agricultural implements and obtain chemical fertilizers to feed the soil.A.for B.against C.of D.towards” 相关考题
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Passage FourMany people want to know how to analyze problems they meet. There are six stages in analyzing a problem.First the person must recognize that there is a problem. For example, Sam's bicycle is broken, and he cannot ride it to class as he usually does. Sam must see that there is a problem with his bicycle.Next the thinker must define the problem. Before Sam can repair his bicycle, he must find the reason why it does not work. For instance, he must determine if the problem is with the gears, the brakes, or the frame. He must make his problem more specific.Now the person must look for information that will make the problem clearer and lead to possible solutions. For instance, suppose Sam decided that his bike does not work because there is something wrong with the gear wheels. At this time, he can look in his bicycle repair book and read about gears. He can talk to his friends at the bike shop.After studying the problem, the person should have several suggestions for a possible solution. Take Sam as an illustration. His suggestions might be: put oil on the gear wheels; buy new gear wheels and replace the old ones; tighten or loosen the gear wheels.Eventually one suggestion seems to be the solution to the problem. Sometimes the final idea comes very suddenly because the thinker suddenly sees something new or sees something in a new way. Sam, for example, suddenly sees that there is a piece of chewing gum between the gear wheels. He immediately realizes the solution to his problem: he must clean the gear wheels.Finally the solution is tested. Sam cleans the gear wheels and finds that afterwards his bicycle worksperfectly. In short, he has solved the problem.48. In analyzing a problem we should do all the following except ______.A. recognize and define the problemB. look for information to make the problem clearerC. have suggestions for a possible solutionD. find a solution by trial or mistake
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B. not
C. must not
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B.not
C.must not
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根据以下材料，回答
People do not analyze every problem theymeet. Sometimes they try to remember a solution from the last time they had asimilar problem. They often accept the opinions or ideas of other people. Othertimes they begin to act without thinking; they try to find a solution by trialand error. However, when all these methods fail, the person with a problem hasto start analyzing. There are six stages in analyzing a problem.
First the person must recognize that thereis a problem. For example, Sam′s bicycle is broken, and he cannot ride it toclass as he usually does. Sam must see that there is a problem with hisbicycle.
Next the thinker must define the problem.Before Sam can repair his bicycle, he must find out the reason why it does notwork. For instance, he must determine if the problem is with the gears, thebrakes, or the frame. He must make his problem more specific.
Now the person must look for informationthat will make the problem clearer and lead to possible solutions. Forinstance, suppose Sam decided that his bike does not work because there is somethingwrong with the gear wheels. At this time, he can look in his bicycle repairbook and read about gears. He can talk to his friends at the bike shop. He canlook at his gears carefully.
After studying the problem, the personshould have several suggestions for a possible solution. Take Sam as anillustration. His suggestions might be: put oil on the gear wheels; buy newgear wheels and replace the old ones; tighten or loosen the gear wheels.Eventually one suggestion seems to be the solution to the problem. Sometimesthe final idea comes very suddenly because the thinker suddenly sees somethingnew or sees something in a new way. Sam, for example, suddenly sees that thereis a piece of chewing gum between the gear wheels. He immediately realizes thesolution to his problem: he must clean the gear wheels.
Finally the solution is tested. Sam cleansthe gear wheels and finds that afterwards his bicycle works perfectly. Inshort, he has solved the problem.
What is the best title for thispassage?A.Six Stages for Repairing Sam' s Bicycle
B.Possible Ways to Problem-Solving
C.Necessities of Problem Analysis
D.Suggestions for Analyzing a Problem
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to recoverB
to be recoveredC
being recoveredD
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whereB
whichC
thatD
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a criminal must be severely punishedB
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单选题He must use this surplus in three ways: as seed for sowing, as an insurance _____ the unpredictable effects of bad weather and as a commodity.A
forB
againstC
ofD
towards
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单选题When Brad offered his old wooden desk at a garage sale, no one bought it, even though he offered it for only $10. When he offered it at the local auction house, however, someone bought it for $850. Which of the following, if true, best explains why Brad was able to sell the desk for a high price at the auction while he could not sell it for a much lower price at the garage sale?A
Brad advertised that the proceeds of the garage sale would benefit a local charity, while he made no such claims for the proceeds from the auction.B
One of the legs of the desk was shorter than the other three, producing an unbalanced writing surface.C
The auction house specializes in selling antique furniture, which is generally valued more highly than the discarded furniture sold at garage sales.D
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Prospective buyers at auctions are often more interested in the auction process than in the items up for bid.
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单选题He looks old for his age. I think he must have _____ a lot in those years.A
gone overB
gone byC
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gone with
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