阅读短文，根据要求完成文后的题目。

    There was a man who had four sons. He wanted his sons to learn not to judge things too quickly. So he sent them to go and look at a pear tree far away in turns.

    The first son went in the winter, the second in the spring, the third in summer, and the youngest son in the fall.

    When they had all gone and come back, he called them together to describe what they had seen. The first son said that the tree was ugly. The second son said no; it was covered with green leaves, and full of hope. The third son disagreed. He said there were many flowers that smelled so sweet and looked so beautiful, it was the most wonderful thing he had ever seen. The last son disagreed with all of them, he said there was lots of fruit in the tree, full of life and harvest（收获）.

    The manthen explained to his sons that they were all right, but they had each seenonly one season in the tree's life. He told them" You cannot judge a tree,or a person by only one season and its true nature —the pleasure, joy, and lovethat come from that life can only be judged at the end, when all the seasons are up."

    If you give up when it's winter, you will miss the promise of your spring, the beauty of your summer, harvest of your fall. Don't let the pain of one season kill the joy of all the rest.

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    Kyle walked up and down as he waited for his turn at the back stage. This would be his most important piano performance yet. At ten years old, he was the youngest performer in the Christmas concert. Although his teacher Ms. Neal said he was good enough at the song he would play, he still practiced it more than 30 times that week. When he closed his eyes at night, the music played over and over again in his mind

    Now, the day finally arrived, but Kyle was not sure he was ready. He kicked a small ball which was picked up from a Christmas tree, and then looked himself in a mirror—trying to make his bow tie more smooth and beautiful. He thought of his mom who bought him the new suit with this bow tie. He would make her feel proud of him. He noticed that his hands were shaking. How could he play the notes of the song if his hands were shaking? He took a deep breath and tried to calm down, but his hands shook more.

At this time, Ms. Neal walked up to speak to him. “I have something for you,” she said, putting a smooth black stone into Kyle's hand. “It's a special stone. There's no other one like it in the world. You've practiced so much, so you don't need anything else.”

    The stage lights reflected on it. “Thank you.” Kyle said.

When Kyle's name was called, he rubbed the stone, stepped onto the stage, and played better than ever. After his performance, he noticed that Ms. Neal had a whole bag of black stones. “Why did you say this one was so special?” he asked.

His teacher smiled, “Like your talent, it is special because it belongs only to you.''

    There is a pilot (飞行员) and four people in a small plane. Suddenly there is something wrong with the machine while it is flying in the air. The plane begins to fall down. The pilot tells the people there are only four parachutes (降落伞). They all become worried and start to make excuses.

    "I must go," says the pilot, taking one of the parachutes and jumps out. The first person stands up, "I'm a doctor," he says. "I help people live longer and I save lives." He takes a parachute and jumps out.

    The next person says, "I must have a parachute. I am a very clever person. I have to attend an important match. I know I will win the game because I'll be the cleverest person there." He picks up a pack and jumps out.

Two men are left—an old businessman and a young mountain climber. At this time the plane is going down fast. The businessman says, "Young man, I am old but you are still young. You take the last parachute." The young mountain climber smiles. "Don't worry," He says. "We can both jump out because there are still two parachutes. Just now the clever man jumped out with my backpack."