People do not analyse every problem they meet. Sometimes they try to remember solution from the last time they had a【21】problem.

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问题     People do not analyse every problem they meet. Sometimes they try to remember solution from the last time they had a【21】problem. They often accept the opinion or ideas of other people. Other times they begin to act without【22】, they try to find a solution by trial and error. However, when all of these methods【23】, the person with a problem has to start analysing. There are sever al stages in analysing a problem.
    First, the person must recognize that there is a problem. For example, Sam’ s bicycle is bro ken. Sam must【24】that there is a problem with his bicycle. Next the person must【25】the problem. Sam can repair his bicycle, he must know why it does not work. Now the person must look for【26】that will make the problem clearer and lead to possible solutions. Suppose Sam decides that his bike does not work because there is something wrong with the brakes. At this time he can look in his bicycle repair book and【27】his friends at the bike shop. After【28】.the problem, the person should have several suggestions for a possible solution. In the end, one suggestion seems to be the solution【29】the problem. Sam, for example, suddenly sees there is a piece of chewing gum(口香糖) stack to a brake. What he will do is to clean the brake. Finally the solution is【30】. Sam does it and finds his bicycle works perfectly. In short he has solved the problem.

选项 A、fail
B、work
C、change
D、develop

答案A

解析 从本句的意思中我们知道:人们遇到了问题不得不去分析研究问题,是因为前面所讲到的方法都失败(fail)的缘故。所以,A项fail为正确答案。
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