请根据短文内容，简要回答下列问题.

    The story is about a young student. She worked very hard at her lessons. She worked so hard that she became ill. She couldn't go to sleep at night. When she got up the next morning, she felt very tired.

    So she went to see a doctor. Hearing the student's words, the doctor said, "You are too stressed out. You must eat more food like vegetables and tofu. Besides you can try to count(数) numbers when you are lying in bed. By the time you reach one thousand, you will be asleep. I'm sure of it."

    The next day, the student came to see the doctor again. "Well," said the doctor, "how are you feeling today?"

    The student still looked tired. "Yes," she said, "I tried to count one, two, three, four... up to one thousand. But when I reached five hundred and sixty, I feel sleepy. I had to get up and drink some coffee so that I could go on counting up to one thousand. But then I still couldn't be asleep."

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    Ricardo Semler became the boss of his father's company in Brazil at the age of 21. The name of the company is Semco. It sold parts for ships. Semler worked like a mad man, from 7:30 in the morning to midnight every day. One afternoon, while he was visiting a factory in New York, he fell down. The doctor said, “ There's nothing wrong with you. But if you continue like this, you'll find a new home in our hospital.” Semler got the message. He changed the way he worked. In fact, he changed the ways his workers worked, too.

    At the same time, Semler changed the office. Instead of walls, they have plants at Semco, so the boss can't shut himself away from everyone else. And the workers are free to decorate their workplace as they want. As for uniforms, some people wear suits and others wear T-shirts.

    Semco has flexible working hours: the workers can decide when they need to arrive at work. Also, Semco lets its workers use the company's machines for their own projects, and makes them take holidays for at least thirty days a year.

    It sounds perfect, but does it work? The answer is in the numbers: in the last six years, Semco's revenues (收益) have gone from $35 million to $212 million. The company has grown from 800 workers to 3,000. Why?

    Semler says it's because of “peer pressure” (同辈压力). Peer pressure makes workers work hard. It means if someone isn't doing his job well, the other workers will not allow the situation to continue. In other words, Semler treat his workers like adults rather than children, and expects them to act like responsible (负责任的) adults. And they do.

    I'm Ben. Today was not a good day. First, I slept late and Morn shouted at me to wake me up.  When I went to the kitchen for breakfast, I found there was no hamburger. So I decided to have some bread, but I burned (烤糊) it. I had to eat it because there was no more bread. There was no juice, either. I just had a cup of water.

    When I was at the bus stop, I found that I forgot my wallet (钱包), so I had to go back home to get it. Of course, I missed my bus and had to wait for a long time.

    I was late for school. When I got to school, the first Class was over. I missed a math test. The teacher said there would be a test just for me after school two days later. Oh, it's Friday! I can't visit my grandma then

    After lunch, it was time to give the teacher my homework. I reached into my bag to get it but it wasn't there. I left it at home……

    After school, my father drove me home. When I got home, I went straight to my room to do my homework. Mom cooked fish for dinner. She knows I don't like fish, but she thinks it is good for me. What a bad day! I hope tomorrow Will be nice.

    It all started at the beginning of the fifth grade. At first, Carmen wasn't really sure what was happening. In class, she had to squint (眯着) her eyes to see the blackboard clearly. She had to do the same thing when she read street signs, or when she watched a movie.

    It wasn't long before Carmen found herself squinting all the time, but she didn't want anyone to know that. One day, she asked for a desk closer to the blackboard. Her teacher asked if she had trouble seeing the blackboard. Carmen shook her head, but she knew she couldn't pretend(假装) much longer.

    At home, she had to sit closer and closer to the television while watching her favourite shows. Her mother noticed that and said, "Tomorrow I'm calling the eye doctor to get an appointment for you." Three days later, Carmen had" new glasses and the doctor told her to wear them all the time. Carmen frowned in the car the whole way home.

    "All of the kids at school will think I'm a nerd." she said.

    "You look just as beautiful with those glasses on as you do without them," her mother smiled and said. But Carmen didn't believe her.

    The next day, Carmen kept the glasses in her pocket as she walked into the schoolyard. She avoided her friends and stood alone, feeling unhappy. Suddenly, she heard her friend Tracy shout. Carmen ran over. "What's wrong?" she asked.

    "My silver ring is gone!" Tracy cried. "It's very special and I can't lose it!"

    Carmen could tell that Tracy was very sad. They all looked for the ring in the grassy area of the playground.

      ▲   She took the glasses out and put them on. She caught, her breath. Everything looked so different! So clear! She looked down at the ground and a glimmer of silver caught her eye. It was the ring.

    "Here it is. I've found it!" She handed it to Tracy.

    "Thanks, Carmen. I never thought we'd find it," Tracy paused. "Hey, I didn't know you wore glasses. They look great!"

    Carmen had forgotten that she was wearing the new glasses. "Thanks," she replied shyly. As they walked back towards the school building, two more girls from her class complimented (赞美) her on her glasses. Carmen smiled. "Maybe wearing glasses won't be so bad after all," she thought.