完形填空
People do not analyze every problem they meet.Sometimes they try to remember a solution from the last time they had a 1 problem.They often accept the opinions or ideas of other people.Other times they begin to act without 2 ; they try to find a solution by trial and error. 3 , when all these methods 4 , the person with a problem has to start analyzing.There are six 5 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 6 that there is a problem with his bicycle.
Next the thinker must 7 the problem.Before Sam can repair his bicycle, he must know why it does not work.For instance, he must 8 the parts that are wrong.
Now the person must look for 9 that will make the problem clearer and lead to possible solutions.For instance, suppose Sam 10 that his bike does not work because there is something wrong with the brakes. 11 , 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 12 the problem, the person should have 13 suggestions for a possible solution.Take Sam as an example 14 , his suggestions might be:tighten or loosen the brakes; buy new brakes and change the old ones.
Eventually one 15 seems to be the solution 16 the problem.Sometimes the final idea comes quite 17 because the thinker suddenly sees something new or sees something in a 18 way.Sam, for example, suddenly sees that there is a piece of chewing gum(口香糖)stuck to a brake.He 19 hits on the solution to his problem:he must clean the brake.
Finally the solution is 20 .Sam does it and finds that afterwards his bicycle works perfectly.In short, he has solved the problem.
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