Physical education plays a vital role in the students' development and growth. According to recent medical studies, physical well-being of a student is directly related to his or her performance whether in class or in the office.

It's a link to good health.

    It's only in physical educational classrooms that students learn the value of taking care of themselves through proper grooming, healthy eating and regular exercise.

    Many doctors today agree that obesity is a serious health risk. Without any form of diet management and control with the numerous processed food students intake every day, a student's health can easily be at risk to many diseases. Physical education in school is a preventive measure to teach students the value of regular exercise.

It promotes academic learning.

    Physical health allows students to function better in classrooms. A good cardiovascular system developed from regular exercise promotes excellent blood and oxygen circulation. This circulation produces longer attention span during classes allowing longer concentration and absorption.

It builds self-trust.

    Students who are active in physical activities are more confident with themselves according to most social school studies. It's probably because of the self-discipline and dedication to excel in a sport that brings out the best in students. In school, the physical education program introduces these sport activities to students.

It promotes a physically active lifestyle.

    The purpose of physical education is to instill in students, at an early age, the value of self-preservation and choosing a lifestyle that is good for both the mind and body.

—(总的来说),it is a great success.

—Because he has been (批评) by his father.

    A new study, conducted by British company Mindlab International, has found that listening to music at work increases accuracy and speed, The Telegraph reported. Perhaps, some parents disagree with this idea, saying, "Switch off the music and concentrate!" Well, if that's the case with your parents, you might now be able to convince them that you have science on your side.

    The company gave 26 participants a series of different tasks for five days in a row, including spell checking, mathematical word problems, data entry, and abstract reasoning. The participants completed these tasks while listening to music or no music at all.

    The results showed that while music was playing, 88% of participants produced their most accurate test results and 81% completed their fastest work. David Lewis, chairman of Mindlab International, told The Telegraph, "Music is a very powerful management tool if you want to increase not only the efficiency of your workforce but also their emotional state... they are going to become more positive about the work."

    However, you may have a list of your favorite songs, but not all kinds of music match all homework. For maths or other subjects involving numbers or attention to detail, you should listen to classical music, the study found. In the study, pop music enabled participants to complete their tasks 58% faster than when listening to no music at all. If you are reviewing your English writing, pop music is the best choice, as it is the best kind for spell checking. It cut mistakes by 14%, compared to listening to no music. After finishing your homework, do you often take time to check your answers? Maybe, some dance music is suitable for you.

    I fell in love with Yosemite National Park the first time I saw it, when I was 13. My parents took us there for camping. On the way out, I asked them to wait while I ran up to E1 Capitan, a 1 rock of 3, 300 feet straight up. I touched that giant rock and knew 2 I wanted to climb it. That has been my life's passion (钟爱) ever since— 3 the rocks and mountains of Yosemite. I've long made Yosemite my 4.

    About 15 years ago I started seeing a lot of 5, like toilet paper, beer cans, and empty boxes, around the area. It's 6 me why visitors started respecting the place 7 and treated such a beautiful home-like place this way.

    I tried 8 trash (垃圾) myself, but the job was too big. I would 9 an hour or two on the job, only to find the area trashed all over again weeks later. Finally, I got so 10 it that I decided something had to change.  

    As a rock-climbing guide, I knew 11 about organizing any big event. But in 2004, together with some climbers, I set a date for a  12. On that day, more than 300 people 13. Over three days we collected about 6, 000 pounds of trash. It was amazing how much we were able to 14. I couldn't believe the 15 we made — the park looked clean!

Each year volunteers come for the cleanup from everywhere. In 2007 alone, 2, 945 people picked up 42, 330 pounds of trash and 16 132 miles of roadway.

    I often hear people 17 about their surroundings. If you are one of them, I would say the only way to change is by 18 rather than complaining. We need to teach by 19. You can't blame others 20 you start with yourself.  

, I had to stop to have a rest.

    There is a memorial  in the middle of the village. It is to honor those who fought for justice  and freedom. The minister  comes to visit it every year. Some civilians   often visit it, too. When someone plans to leave the village, he often visits it before his departure .

We tried to in the storm, but he went regardless.

He was very angry at the remarks .

    It is named a kind of wooden Eiffel Tower, because of the fact that there was a large wooden platform far out in the lake on which stood an improbably high diving board. It was, I'm sure, the county's tallest wooden structure and no one had ever been known to jump from it.

    So it was quite a shock when our teacher, Mr. David, announced that he would dive off the high board that very afternoon.

    Word of his questionable plan was already spreading through town as Mr. David swam out to the platform. He was just a tiny, stick figure when he got there but even from such a distance the high board seemed almost to touch the clouds. Once at the top, he paced the enormously long board, then took some deep breaths and finally stood at edge. He was going to do it.

    Several hundred people had gathered at the shore to watch. Mr. David stood for quite a long time, then he raised his arms, took one massive bounce and launched himself into a perfect dive. It was beautiful. He fell with perfect style for what seemed minutes. The crowd fell silent. The only sound to be heard was the faint whistle of his body tearing through the air toward the water far, far below.

    But about three quarters of the way down he seemed to have second thoughts and began suddenly to panic, waving his arms and legs like someone having a bad dream. When he was perhaps thirty feet above the water, he gave up on waving and spread his arms and legs wide, apparently hoping that it would somehow show his fall.

    It didn't.

    He hit the water at over six hundred miles an hour. The impact was so loud that it made birds fly out of their trees three miles away. I don't think he entered the water at all. He just bounced off it, about fifteen feet back into the air. After that, he lay still on the surface, spinning like an autumn leaf.

    He was brought to shore by two passing fishermen in a rowboat and placed on an old blanket where he spent the rest of the afternoon. Occasionally he accepted small sips of water, but otherwise was too shock to speak. From head to toe, he was covered with deep red bruises.

……

    It was the best day of my life.

— I r you to choose the red one.