The art of growing dwarf trees, or "bonsai"（盆景） as their Japanese planters call them, is increasing in popularity in the United States. Growing bonsai can make a fascinating hobby for anyone who enjoys plants and creating beautiful effects with them.{#blank#}1{#/blank#}．

    In growing bonsai, in fact, one must be careful in choosing the type of tree, as the growing conditions are unusual.{#blank#}2{#/blank#}．Varieties of pines with small needles and hardwood trunks are especially suitable.

    {#blank#}3{#/blank#}This is necessary because the major growth of bonsai is kept confined(被限制) to the tree's trunk and leaves, not its root system-a process quite unlike what is done with other plants.

    Another thing the bonsai-grower must do is to trim （修整） the roots and branches of the tree periodically （定期地）. Unless this is done, the plants will not have the proper proportions(比例) and will look unnatural.{#blank#}4{#/blank#}

    The last thing one must do is to be careful to keep the tree well-watered. Because bonsai are grown in smaller-than-usual containers, they often need more water than ordinary houseplants do.

    As can be seen from the above, the art of bonsai-growing is one which requires a certain amount of time and effort.{#blank#}5{#/blank#}Imagine having such a tree in your living room and passing it down through several generations of your family. That is exactly what bonsai-growing is all about: establishing a tradition of beauty which lasts for years and years and is a symbol of the beauties of the natural world.

    Scientists say eating less can slow the aging process of cells in the body. The researchers studied mice, not people.

    {#blank#}1{#/blank#}One group was able to eat as much as it wanted. The other animals in the other group are limited to eat. Their diet had 35 percent fewer calories than the first group of mice.

    The mice with the diet restrictions(限制) were more energetic and suffered fewer diseases. They were not just living longer, they seemed to stay younger for a longer period of time. When you restrict calories (in mice), there is a direct increase in lifespan - the average age of the animal{#blank#}2{#/blank#}

    But how? The researchers found that fewer calories slow down a natural mechanism in cells called ribosomes (核糖体). Ribosomes are responsible for making important proteins in the cells. But with fewer calories, they slow down.{#blank#}3{#/blank#}This, in turn, keeps cells and the entire body functioning well.

    Earlier studies have suggested a link between calorie restrictions and slowed aging{#blank#}4{#/blank#}Calorie restriction as a way to slow aging has not been tested in humans. But the main finding for people is the importance of taking care of our bodies{#blank#}5{#/blank#} And this may help us make better decisions about what we eat.

A. The less we eat, the healthier we are.

B. Researchers studied two groups of mice.

C. This finding is good news if you are a mouse.

D. This gives the cells more time to repair themselves.

E. The findings help to explain how exactly our bodies age.

F. However, this is first to show how the ribosomes can influence aging.

G. Calorie restriction caused real biochemical changes that slowed down the rate of aging.

    Have you ever changed your mind, or even given up a dream because you were afraid of what someone else might think of you? If you're often worried about what friends, family, or even strangers in the street might think, then you're using up a huge amount of energy worrying.{#blank#}1{#/blank#} But the steps below should help.

Step 1: Ask yourself what matters to you.

    Maybe you can't stand the gym, but your best friend works out every day. It's natural for people around you to have different values from you.{#blank#}2{#/blank#}

Step 2:{#blank#}3{#/blank#}

    The truth is that I'm not the centre of the world, and neither are you! Most of the people around you are far too busy going about their own lives to think much about you.

Step 3: Recognize that their opinion can't hurt you.

    There are a few cases where opinions will make a difference.{#blank#}4{#/blank#} But the people who really matter are going to love you for who you are.

Step 4:{#blank#}5{#/blank#}

    You can't control people's thoughts. You've got no idea what might go through their head, or why. You can't please everyone all of the time, and there's no need to try to.

A. Do whatever you want to do.

B. This is a hard habit to get rid of.

C. You should make everyone around you happy.

D. So just be clear and honest with yourself.

E. Remember that they're not all watching you.

F. Accept that you can't control what people think.

G. For instance, your boss's opinion is usually important to you.

    Most people actually do not know how to do basic first aid on mild burns. It is normally taken for granted since most people think that soaking (浸泡) the burn with water is the way to go.{#blank#}1{#/blank#}

    Once the burn appears, you will surely feel much pain on the actual burned skin. Technically, this is the time to stay calm.{#blank#}2{#/blank#}Finding a source of running water is recommended. However, if there is none, any source will do. If there is running water, simply place the burned area under it and allow it to soak the water for about 5 to 10 minutes.{#blank#}3{#/blank#}If you have access to ice or a cold compress（冷敷布）, you can use that as well. You can place the ice or cold compress on the affected area and leave it there about 15 to 30 minutes. The ice will numb the pain and will also stop more injury on the skin.

    After soaking in water or cooling the area with ice, remove from the water source and allow the moisture to dry naturally. You may also consider patting it down dry with a towel or napkin, however, this could damage the burnt skin even more.{#blank#}4{#/blank#}

    As soon as the area dries up completely, get a bandage or a strip of cloth.{#blank#}5{#/blank#}This will protect that area from infection caused by outside dirt and dust getting into the open burn.

A. Call a doctor may as well help in most burn cases.

B. The thing is that treating a mild burn goes more than just soaking the affected part in water.

C. It is best to dry it naturally instead.

D. Wrap it around the burn to cover the open area of skin.

E. The truth is that soaking is the last thing to do to deal with mild burn.

F. The first thing you will need to do will be to find a clean water source.

G. This will relieve some of the pain, cool down the skin, and stop additional burning.

Five tips for safe running

    We all know that exercise is good for our health. But some kinds of exercise may be better than others. Running, for example, may help to protect against heart disease and other health problems.

    Running is good exercise, but it can be hard on the body. {#blank#}1{#/blank#}

    Take it easy. Do not run too much, too soon or too fast. Most people get running injuries when they push themselves too bad. The body needs time to get used to increases in distance or speed. {#blank#}2{#/blank#}

    Listen to your body. Most running injuries do not come unexpectedly. {#blank#}3{#/blank#} They may include body aches, sore muscles (肌肉酸痛) and pain that does not go away.

    {#blank#}4{#/blank#} There is no single best shoe for every runner. You should find the shoes that offer the best fit and support for your feet. More importantly, you should replace your shoes every 500 to 800 kilometers.

    Take good notes. Take time after each run to write down what you did and how you felt. Look for patterns, things that happen over and over again. These notes will help you find the best exercise for you.

    Cross train. As we said earlier, running is hard on your body. So physical fitness experts suggest some form of cross training to improve muscle balance and to help you stay injury free. They say swimming, yoga, and riding a bicycle are good exercises to combine with running. {#blank#}5{#/blank#}

    Leaving a good impression can be done in different ways, from clothing to posture, and from talking style to body language. Below are several tips for you to begin with:

    ●Physical appearance matters. We're visual creatures after all.

    Physical appearance is the first clue one relies on to judge who we are. {#blank#}1{#/blank#} It also means the person means something to us by dressing properly. If it is a business setting, be aware of the dress rule or culture. {#blank#}2{#/blank#} A thumbs-up here does not mean the same elsewhere. So do the research! Details from any little areas will affect the impression on the whole.

    ●{#blank#}3{#/blank#}

    A fake (假的) smile can potentially do more harm than good in our attempts to leave a good impression. It is understandable that sometimes it is hard to suddenly force a smile. {#blank#}4{#/blank#} Remember being positive plays an important part in shaping our first impression.

    ●Look into people's eyes until you see the colors of their iris (虹膜).

    Keeping eye contact delivers a sense of friendship to the people we interact with. Consequently, they feel more connected to us and tend to be more positive toward the interaction. {#blank#}5{#/blank#} Well, try to identify the color of the others' irises. Get it? That makes a good eye contact example.

    Are these the impression we want to leave? Stop staring at the ground and look at people in the eye then!