Turn the following passage into Chinese．(山东师范大学2009研，考试科目：基础英语)If you expect something to turn out badly, it probably will. Pessimism is seldom disappointed. But the same principle also works in reverse. If you expect good things to happen, they usually do! There seems to be a natural cause-and-effect relationship between optimism and success.Optimism and pessimism are both powerful forces, and each of us must choose which we want to shape our outlook and our expectations. There is enough good and bad in everyone"s life—ample sorrow and happiness, sufficient joy and pain—to find a rational basis for either optimism or pessimism. We can choose to laugh or cry, bless or curse.I believe in the upward look. I choose to highlight the positive and slip right over the negative. I am an optimist by choice as much as by nature. Sure, I know that sorrow exists. I am in my 70s now, and I"ve lived through more than one cr. But when all is said and done, I find that the good in life far outweighs the bad.