Tom and Mike are good friends. They are good to kids. They want to find summer jobs. One day Tom tells Mike that Beidaihe Kids Summer Camp needs help with sports, music and computers. They are both very glad to hear this.

    Tom can play basketball and volleyball, and he can swim, too. Mike can play the violin, the drums and the guitar, and he also likes soccer. Tom and Mike like computers very much. Can they join the Summer Camp?

    China has a very long history. It has many great traditional skills that have a wide influence (影响). Here we mainly talk about kites.

    The earliest mention of a kite in ancient China dates back to the 5th century BC. It was made of wood and used as a rescue signal (求救信号).

    At the time between 770 and 221 BC, Chinese kites were actually called "muyuan". They were first invented in Shandong Province for military purposes (军事目的). The kites were used to send important messages during the Chu-Han War. During the Tang Dynasty, kites were made of lighter materials, such as bamboo, silk and paper. At that time, people began to fly kites for other purposes. It was believed that letting go of the kite could remove bad luck and illness.

    Today, kite-flying is an interesting and healthy activity in China. There are large kite-flying festivals held throughout the country, and kite makers can show off their skills during the festivals.

    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.

    Do you want to visit the North Pole(北极) this summer? {#blank#}1{#/blank#} So if you enjoy the sunshine very much, come to Sunshine Hotel in the North Pole this summer. It's very far from where you live, so you can only come here by plane. It is also very cold here. {#blank#}2{#/blank#} You can play with the snow in the evening because it is still bright (明亮的).

    In Sunshine Hotel, there are 20 floors (楼层) and 100 rooms. {#blank#}3{#/blank#} You have to pay S 100 for a room for one night. Every room has a big balcony(阳台). {#blank#}4{#/blank#} Sometimes you may see some interesting animals. There is a coffee bar (咖啡馆) on each floor. You can get hot coffee here for free. If you want other drinks, you have to pay for them.

    {#blank#}5{#/blank#} Do you want to feel anything different? Welcome here!

Do you feel guilty(内疚的) for something you did? Maybe you made a mistake that hurt someone. {#blank#}1{#/blank#} Either way, the simple words "I'm sorry" can help you and others feel better. It's not always easy to admit(承认) what you did is wrong. But you can't learn from your mistakes without admitting them.

Apologizing(道歉) is an important part of personal growth. When you apologize, the other person knows that you understand his feelings. {#blank#}2{#/blank#} But in fact, it shows that you are strong enough to put others before yourself. After apologizing, you may become closer to your friend than before.

But even after you decided to apologize, you may not be sure how to do it. {#blank#}3{#/blank#}

①Show that you feel guilty and understand how the other person feels. For example, you could say, "{#blank#}4{#/blank#} I feel terrible for talking to you like that."

②Don't keep doing what you apologized for.

③Don't put off(推迟) making an apology.{#blank#}5{#/blank#}

Apologies can be hard, but they are necessary for healthy relationships.

Many people take running as a way to keep fit. They like to run in hot weather and enjoy the feeling of being wet through with sweat (汗) while running. Cold weather during winter months, with low temperatures and freezing cold winds, may keep people from running in the open air.

However, a new study shows that the drop in temperature is a good reason to run. In fact, running in cold weather helps improve one's performance. Many runners might find it easier to run in winter than in hot weather. The body needs less water on a cold day than in warm weather. In addition, lower temperatures reduce stress on the body. When you run in cold weather, your heart rate is lower.

John Brewer is a professor of applied sports science at St. Mary's University in London. For this study, he and other researchers put a group of people into a room where summer and winter weather conditions are recreated. The test subjects were asked to run 10,000 meters under both conditions and their biological measurements were recorded and studied.From the study, every movement runners make produces heat. The heat can be really damaging unless the body can lose it. One way in which people lose heat is by sweating. The body loses heat through sweat. The body also loses it by transporting the blood to the surface of the skin and it puts more stress on the heart, especially in hot conditions because it's much harder to lose heat when the outside environment is warm. As the result shows, running in hot temperatures results in 6 percent higher heat rates.

When running in cold conditions, the body does not have to work hard to move blood to the skin surface. Therefore, it requires less energy. The most important thing for people who run in cold conditions is to wear the right clothing. Keep as dry as possible when exercising in low temperatures. Wear warm and light clothing to keep sweat away from your skin. So don't let winter weather keep you indoors. Simply get ready for the low temperatures and start running.