People seem to have a natural need for friends and with good reason. Friends increase your enjoyment of life and relieve feelings of loneliness. They even can help reduce stress and improve your health. Having good friends is especially helpful when you are going through any kind of hard time such as when you are experiencing anxiety, panic(恐慌) attacks, or depression.

    When you are with good friends you feel good about yourself, and you are glad to be with them. A friend is someone who —

●you like, respect, and trust, and who likes, respects and trusts you

●doesn't always understand you, but accepts and likes you as you are, even as you grow and change

●allows you the space to change, grow, make decisions, and even make mistakes

●listens to you and shares with you both the good times and the bad times

●respects your need for secrets, so you can tell them anything

●lets you freely express your feelings and emotions without judging, laughing at or criticizing you

●accepts the limitations you have put on yourself and helps you to remove them

    A person once said, “Friendship is a continuing source of bonding（连接）, releasing, and creating in yourself and with the other person. There is an emotional bond between the two people.”

    A good friend or supporter may or may not be the same age or the same sex as you, and may not have the same educational, cultural, or religious background, or share interests that are similar to yours. Friendships also have different depths(深度). Some are closer to the heart and some more superficial, but they're all useful and good.

    Having a clean and organized workspace takes time and effort—especially if we want to keep it that way. {#blank#}1{#/blank#} According to recent statistics, the average office employee spends one and a half hours a day looking for things. That's an hour and a half that is wasted every day because of disorganization. Keeping things organized can give you more time each day. Having a clean workspace can have a number of additional surprising benefits. Let's look at some of those now.

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    Untidiness can be a distraction that interferes with your thought process and prevents you from being as effective as you can be. When your workspace is clean and organized, you can spend more time focused on your tasks, without the unorganized chaos to attend to.

Attain More Success

    It's hard to be productive when you're disorganized. Organization can make it easier to concentrate, and allows you to get things done faster. Whether you're an employee or self­employed, organization is a crucial component for success. If clients see that you're well­ organized, they'll be more willing to trust you.{#blank#}3{#/blank#}

Make a Better Impression

    In addition to making it easier to focus and work, having a clean workspace also helps to convey a professional image. Your workspace says more about you than you may think. When someone walks past your space, they instantly form an opinion about you based on what your space looks like.{#blank#}4{#/blank#} However, to the outsider, you may look overwhelmed and incapable of taking on extra projects.

Have a Happier Work Experience

    If you're surrounded by a clean environment you'll have space to think, will be able to get more done and will feel better working in that space.

Fortunately, keeping your space clean and organized is easier than you might think.{#blank#}5{#/blank#} You'll be amazed at the difference a clean workspace can make to your mindset and how much more you'll be able to accomplish during the day.

A. Improve Focus

B. Regain Tidiness

C. But the results are more than worth it

D. Maybe you feel productive with papers scattered around

E. It shows that you know what you're doing and that you are capable

F. Clearly being disorganized can have a negative effect on your performance

G. Try to get rid of or throw away everything that you don't need to maximize your productivity

    For centuries, elephants have played a big role in the world's economies, culture and religion. The African elephant used to be found all over Africa and the Asian elephant moved from Syria to China to Indonesia. Nowadays, elephants are found in small groups in the south of the Sahara Desert and scarcely in Southeast Asia, Sri Lanka and India.

    In the early twentieth century, there were close to ten million elephants, and now the elephant number is as low as 252,000 and expected to drop down to 160,000 by 2025. Between 2007 and 2014, the elephant population fell by at least 30%, or 144,000 elephants. As researchers have traveled over the African plains, they only spotted one herd of 36 elephants in an area like the size of Mexico. It is clear that these gentle mammals are disappearing right before our eyes.

    There are many reasons why the elephant population has been decreasing, one of which is their habitat. Humans are competing with elephants for living space, and as more and more humans clear the land that is being used by elephants, the elephants have less space. Elephant hunting or “poaching” has been a major factor for the disappearance of this species, and they are killed only for their valuable ivory tusks. Although the trade of tusks is illegal, it is still a common practice in many places.

    Often, all the local people living among elephants would be farmers, and found that they could make more money by selling the tusks of one elephant, than doing manual labor for twelve years. That alone makes it really hard to prevent them from killing the elephants.

    Some places such as Botswana, have put in extra effort to protect their wildlife from poachers by founding their Botswana Defense Force, which is made up of around 700 specially-trained soldiers that are stationed in 40 different areas. You may feel worried about the present situations elephants are in, but there are ways to help. To find out how you can help elephant conservation, adopt an elephant, or donate, click here.

    Generally speaking, waiting rooms are always filled with a lot of impatient people. However, a project carried out by The Observer suggests that people regard these spaces as a place of refuge (避难), a window in their tightly scheduled lives.

    Ella Doroudy, Margate Station

    We were at the beach for the day, and now are on our way home. We don't have to wait very long, because we checked the timetable so we got here in time for the train. I just chat with my mates, really, and listen to music until the train comes. Waiting with other people is easier because you can kill time when you're talking about stuff.

    Caroline Lacey, Streatham Dental Center

    I don't really get nervous about seeing the dentist, but since these two fillings (补牙的材料) came out I've been in sharp pain. It's very bright and airy here, so it's quite calming. Usually I kill time by reading magazines. I've been coming to the dentist as and when I need to, but now it's got to be regular.

    Katie Hawkins, Model Casting

    I was a bit late today, which I'm quite pleased about because some of these girls have been waiting ages. I can't help but look at everyone else a bit — I look at the other girls and think: "I wonder if they'll like her better than they like me." While I'm waiting, I'm thinking: "Oh come on. I do have a life!"

    Paul Thomas, Royal London Hospital

    I feel pretty indifferent (满不在乎的)  while I'm waiting here, to be honest. It's something I've got very used to since my motorbike accident seven years ago. I've had about 32 operations so far. It's no good rushing in thinking you're going to escape in five minutes, so I just sit back and people-watch, really.

    If humans pump enough carbon dioxide (CO₂) into the atmosphere, the stratocumulus clouds(层积云) could disappear, and the earth's temperature could climb sharply to heights not predicted in current climate models. It would burn the planet. That's the conclusion of a paper published in the journal Nature Geoscience and described in detail by Natalie Wolchover for Quanta Magazine.

    As Wolchover explained, clouds have long been one of the great uncertainties of climate models. Computer models that easily capture the complexity and detail of most climate systems just aren't powerful enough to predict worldwide changes in cloud behavior. But clouds are important. They reflect sunlight away from the earth's surface. And stratocumulus clouds are those white blankets you might have seen as you looked out the window of arm airplane, rolling out below you and hiding the ground Researchers suspect that certain sudden, past jumps in temperature may have been caused by changes to clouds like these.

    For the new research, scientists modeled just a small patch of sky using a supercomputer. They found that if carbon dioxide levels reach about 1, 200 parts per million(ppm) in the atmosphere, stratocumulus clouds break up. That's a very high carbon dioxide concentration.  Right now, levels have climbed past 410 ppm--a dangerous change from 280 ppm before the Industrial Revolution.

    But humans put more and more CO₂ into the atmosphere every year. If current trends continue, the earth could reach 1, 200 ppm within 100 to 150 years. This could happen if our society doesn't follow through on any of its commitments to reduce emissions(排放), Wolchover reported. And even if it does, the result would be another 8 degrees Celsius of heat added to the global average, on top of the dangerous changes already underway due to greenhouse gases.

    That's an enormous change, and it goes beyond predictions of worldwide ice melt and catastrophic sea level rise. And, once the stratocumulus clouds are gone, Wolchover reported, they likely wouldn't reappear until atmospheric carbon dioxide levels dropped below where they are currently.

    There's still some uncertainty in the data. The 1, 200 ppm figure could change as scientists look into the issue further.

    Floating on the surface of the seas of the world are billions of tons of small plants and animals called plankton. Most of these plants and animals are too small for the human eye to see. They move about lazily with the currents, providing a basic food for many larger animals. Plankton has been described as the equivalent (相等的东西) of the grasses that grow on dry land, and the comparison is an appropriate one. In potential food value, however, plankton far outweighs that of land grasses. One scientist has estimated that while grasses of the world produce about 49 billion tons of valuable carbohydrates(碳水化合物) each year, the sea's plankton produces more than twice as much.

    Despite its enormous food potential, little effort was made until recently to farm plankton as we farm grasses on land. Now scientists have at last begun to study this possibility, especially as the sea's resources appear even more important as a means of feeding an expanding world population.

    No one yet has seriously suggested that “planktonburgers” may soon become popular around the world. As a possible farmed supplementary food source, however, plankton is gaining considerable interest among scientists.

    One type of plankton that seems to have great harvest possibilities is a tiny creature called krill(磷虾). Growing to two or three inches long, krill are a major food source for the giant blue whale, the largest animal ever to live on the Earth. Realizing that this whale may grow 100 feet and weigh about 150 tons, it is not surprising that each one swallows more than one ton of krill daily.

    Krill swim about just below the surface in huge schools sometimes wide, mainly in the cold Antarctic. Because of their pink color, they often appear as an entire reddish mass when viewed from a ship or from the air. Krill are very high in food value. If krill can feed such huge creatures as whales, many scientists reason, they must certainly be competitors among possible new food sources for humans.