It was nearly dark. The sun was dropping down the mountains far away. Little Tom came back home with tears in his eyes.

  “What's the matter, Tom? How's your trip?” his mother asked with a big smile. “I failed. The mountain is so high and full of big or small stones on the way. I still go ahead. But I was tired and it was so late that I had to come back.” Tom cried. “It doesn't matter. You are only 14 years old after all. You will have another chance(机会).” his mother said. “But, standing at the top of the mountain is my dream!” Tom said. His father came over and asked, “Did you see the green trees on your way to the mountain?” “Sure, and there are a lot of beautiful flowers by the side of the road.” Tom replied. “Did you hear the birds singing?” his father asked. “There are many kinds of birds singing in the trees, and the sound was very sweet.” Tom said. “Did you feel the beauty of nature?” his father asked. “Yes, the blue sky, the white clouds, the green trees and the colorful flowers made a nice picture.” Tom answered. “That's enough!” his father smiled and said, “Please remember, son. For often, achieving(获得) what you expect is not the most important thing. Although you didn't reach the top of the mountain, you got a lot on the way.”

    It is true that not every goal will be achieved, not every job will end up with a success, and not every dream will come true. The most beautiful scenery(风景) is on the way.

    Zhang Lili, a Chinese language teacher at No.19 Middle School of Jiamusi in Heilongjiang Province, has recently been considered to be "the Most Beautiful Teacher" in China.

    At 8: 38 pm on Tuesday, May 8^th, 2012, Zhang Lili and her several students were waiting for a bus at the school gate when suddenly a school bus lost control and rushed towards them. When she realized the danger, she pushed two students to safety, but she was hit and run over. The 29-year-old teacher lost her legs.

    "She is a backbone(骨干) teacher in our school. She works very hard," said the headteacher.

    The heroic teacher was the most popular teacher among the students. "Her students love her a lot. Her room is always full of students when she is free," said another teacher.

    Zhang Lili was also very generous. "My son has lost his father. Every month, Zhang secretly put 100 yuan in his desk from her own salary(工资) to support his studies," said a boy's mother, who was waiting outside the emergency room(急诊室) for hours to express how grateful she felt towards Zhang.

    Two weeks later, Zhang Lili came out of her coma(昏迷). She wrote a letter to her students, wishing them good luck on their entrance exams for high school. Her letter, 200 words long took her three days to write.

    Mr. Turner liked fishing. It was his favorite sport. He often fished for hours without catching anything. But this did not worry him. Some fishermen couldn't catch fish. Sometimes they caught old boots or rubbish. Mr. Turner was even worse than the fishermen. He never caught anything - not even old boots. After he spent whole morning on the river, he always went home with an empty bag. "You must give up fishing!" his friends said, "It's a waste of time."  "But they don't realize one important thing. I'm not really interested in fishing. I am only interested in sitting in a boat and doing nothing at all. It can make me forget the noise of the city and live quietly for some time." he always said to himself.

    We often find that weekends and holidays feel so short while classes and work feel so long. Actually, though, we know that this is not true. But we still wonder where that strange feeling comes from.

    In fact, this is one of the ways that we're tricked by time, according to the website. All that S interesting. The website lists several wrong impressions (印象) we often have about time. Let's have a look.

    First of all, emotions affect (影响) our time-keeping abilities. Negative emotions (消极情绪). especially anxiety and boredom, make time seem longer because they make us concentrate (集中) more on the passage of time. However, when we are enjoying ourselves, we pay more attention to what we are doing and are likely to lose track of (失去对……的意识) time.

    Here is another example. In 2007, a group of scientists carried out a test. In the test, people fell 50 meters into a safety net and were then asked about their experience. Although the experience took shorter than 3 seconds, the people thought it was much longer than it actually was.

    This is because of the way our bodies reply to danger, according to the scientists. Our bodies produce a chemical called adrenaline (肾上腺素) when we are faced with danger. It allows us to concentrate better so that we can stay alive. As a result, we are able to remember far more details (细节) over a short period of time, which makes it seem like time is going more slowly.

    Another situation when we make mistakes about time is when we take afternoon naps (午觉). Have you ever had trouble telling what time it is after a long nap? That's because the best amount of time for a nap is 20 minutes. After 20 minutes, you enter a new stage of sleep called slow-wave sleep. If you wake up mid-way in this stage, it will take a while before you can correctly perceive (感知) time again.

    Yes, time can be mysterious (神秘的) and there is no way to control it. So, perhaps the best thing to do is to make good use of every minute.

    Have you ever considered starting a fitness program? Since exercise can reduce the risk of diseases, improve balance, help lose weight, better sleep habits and even make you confident, you should start a fitness program in the following steps.

    Test your fitness level

How many meters can you walk or run in one minute? How much time does it take you to swim 50 meters? What is your heart rate (心率)? The data (数据) of your fitness level can help you know what activities you need.

    Design your fitness program

You may have begun your daily exercise. But a personal plan helps more. First, you should have your fitness goals (目标). For example, what do you want to look like, to be slimmer or quicker? A balanced plan will help you start low, progress slowly, do right activities and even allow you to recover (康复) if you get hurt.

    Prepare things needed for sports

You need something practical, enjoyable and easy to use. It could be a pair of trainers, a volleyball or a bicycle. You can also download fitness apps (应用程序) on your mobile phone to measure distances, calories burned or your heart rate.

    Take action

Now you're ready for action. When you begin, don't always try tough tasks. Listen to your body and reduce exercise time if necessary.

   Monitor your progress

Test your fitness level again six weeks later. If you have achieved your goals, increase exercise time to continue improving.

Starting an exercise program is an important decision. By planning carefully and acting step by step, you can have good health.