42

　　; they try to find a solution by trial and error. However, when all of these methods

　　43

　　, the person with a problem has to start analysing. There are six

　　44

　　in analysing a

　　problem. 4 , 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

　　46

　　that there is a problem with his bicycle. Next the person must47

　　the problem. Before Sam can repair his bicycle, he must know why it does not work.For example,he must_48___the parts that are wrong. Now the person must look for

　　4 that will make the problem clearer and lead to

　　50

　　solutions. For example, suppose Sam

　　51

　　that his bike does not work because there is something wrong with the brakes.

　　52

　　, he can look in his bicycle repair book and read about brakes, talk to his friends at the bike shop, or look at his brakes carefully. After

　　the problem, the person should have several suggestions for a possible solution. Take Sam as an example

　　54

　　, his suggestions might be: tighten or loosen the brakes; buy new brakes and change the old ones. In the end, one

　　5 seems to be the solution to the problem. Sometimes the

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