Passage 1 When you wake up every day, you have two choices: You can either be positive or negative, an optimist or a pessimist. I choose to be an optimist. I see the glass as half-full, not half-empty. I realize that after every storm the sun shines and there is a solution to every problem. It's like the two salesmen who fell on( 遭遇 ) hard times and ended up broke in a small town in Montana. They needed money to move on and learned that the town paid $20 each for wolf pelts ( 毛皮 ). They sensed opportunity. That night they set out with a couple of clubs ( 棍棒 ) and some borrowed supplies and made camp in the distant hills. They were no sooner asleep than one was awakened by a strange and frightening howl( 嚎叫 ). He crawled outside the tent to find himself surrounded by hundreds of snarling wolves. Back into the tent he crawled and shook his friend. "Wake up!" he cried. "Wake up! We're rich!" There is another story about a terrible tornado ( 龙卷风 ) that swept through Minnesota a few summers back. It caused massive damage and an entire town was wiped out. People were worried and upset. One photojournalist for a local TV station captured a slightly different picture of the disaster when he featured ( 突出介绍 ) a man standing by his car, which had been crushed by a fallen tree. He was smiling, waving at people driving by and holding a sign that read, "new-style compact car( 小型汽车 ).” It's all a matter of perspective. Some people see the positive in every situation, while others go through life complaining about everything. Keep your eye on the doughnut — not on the hole. (278 words) 1. According to the text, the writer believes that ______.