Sports can help you keep fit and get in touch with nature. However, whether you are on the mountains, in the waves, or on the grassland, you should be aware that your sport of choice might have great influence on the environment.

    Some sports are resource-hungry. Golf, as you may know, eats up not only large areas of countryside, but also tons of water. Besides, all sorts of chemicals and huge amounts of energy are used to keep its courses(球场) in good condition. This causes major environmental effects. For example, in the dry regions of Portugal and Spain, golf is often held responsible for serious water shortage in some local areas.

    There are many environment-friendly sports. Power walking is one of them that you could take up today. You don't need any special equipment except a good pair of shoes; and you don't have to worry about resources and your purse. Simple and free, power walking can also keep you fit. If you walk regularly, it will be good for your heart and bones. Experts say that 20 minutes of power walking daily can make you feel less anxious, sleep well and have better weight control.

    Whatever sport you take up, you can make it greener by using environment-friendly equipment and buying products made from recycled materials. But the final goal should be "green gyms". They are better replacements(代替物) for traditional health clubs and modern sports centers. Members of green gyms play sports outdoors, in the countryside or other open spaces. There is no special requirement for you to start your membership. And best of all, it's free.

    A new article in The Wall Street Journal has given us a deeper understanding of the relationship between what we earn and how we feel.{#blank#}1{#/blank#}Well,not true.People with higher incomes are happier than those who struggle to get by.To put a smile on your face with your money,you need to spend it strategically.Here are some ways to better spend your bank notes.

    Buy experiences,not material things.

    {#blank#}2{#/blank#}People think that experiences are only going to provide temporary happiness,but they actually provide both more happiness and more lasting value that help you better manage your life.

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    Anything you buy,including a product you think is special will become just another object.Buying small things can give us frequent small pleasures that are different each time they occur,as they forestall（抢先）adaptation.

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    It's also important to consider how what you're buying will affect how you spend your time.For example,you may have to spend a very long time on the road if you get a big house in the suburb,which will totally lower overall life satisfaction.

    Try giving it away.

Elizabeth Dunn,associate professor of psychology at the University of British Columbia in Canada,found that in countries as diverse as Canada,South Africa and Uganda,giving away money consistently made people happier. {#blank#}5{#/blank#}A.Buy what you like.

B.Be sure to buy time,too.

C.More money,more smiles?

D.Money can't buy happiness,right?

E.Buy lots of little things,rather than one big thing.

F.With no much money to spare,people tend to stick to material goods.

G.This was even true for people who were ly poor themselves.

    I was at my parent's dinner table. Before me was a worn journal of thin and discolored pages. It was my grandfather's journal and now belonged to my father. My grandfather had passed away in the months leading up to my birth. I never got to visit the places he had frequently and people who had been a part of his life's journey.

    I was now about to enter his world, through the words he had left behind. Within minutes, I was attracted by the power of the written words. In the magical script before me, I was transported to another age when food was an everyday art, planned, prepared and enjoyed in the company of others, and a time when people had the heart to pause，their own lives to embrace (拥抱）each other's struggles. All this was conveyed to me in the beauty of the words that flowed together to connect with the writer's mind and understand the world they lived in.

    That kind of writing seems to be lost on us today. We have gotten used to writing in bite-sized pieces for a public looking for entertainment, and hungry for information. No wonder, there are nearly 200 million bloggers on the Internet and a new blog is created somewhere in the world every half a second. Instead of adding to our collective wisdom, most of these writings reflect the superficiality (肤浅)and impatience of our day and age.

    This not only robs us of the skill of writing impressive essays, it also prevents us from exploring what is truly important. Writing humbles us in a way that is vital for our character growth, by reminding us about the limits of the self and our appropriate place in the vast flow of life. Writing frees us by helping us explore the unknown so that we truly open up to the magic of the world around us. I saw all of this in the writing s of my grandfather. And I've seen it again and again in the writings of the greatest thinkers of humanity. Their writings reflect deep thought on issues of human importance.

    Millions of people all over the world use the word okay. In fact，some people say the word is used more often than any other word in the world.

    It may be common，but no one can seem to agree on how the “OK” came to be.

    Okay means “all right” or “acceptable”. It expresses agreement or approval. You might ask your brother，“Is it okay if I borrow your car?” Or if someone asks you to do something，you might say，“Okay ， I will.” Still，language experts do not agree about where the word came from.

    Some people say it came from the Native American Indian tribe known as the Choctaw. The Choctaw word “okeh” means the same as the American word okay. Experts say early explorers in the American West spoke the Choctaw language in the nineteenth century. The language spread across the country.

    But many people dispute(不同意)this.

    Language expert Allen Walker Read wrote about the word okay in reports published in the 1960s.He said the word began being used in the 1830s.It was a short way of writing a different spelling of the words “all correct.” Some foreign-born people wrote “all correct” as“o-l-l k-o-r-r-e-c-t.” and used the letters O.K.

    Other people say a railroad worker named Obadiah Kelly invented the word long ago. They said he put the first letters of his names—O and K—on each object people gave him to send on the train.

    Still others say a political organization invented the word. The organization supported Martin Van Buren for president in 1840.They called their group，the O.K. Club. The letters were taken from the name of the town where Martin Van Buren was born—Old Kinderhook，New York.

    Not everyone agrees with this explanation，either. But experts do agree that the word is purely American. And it has spread to almost every country on Earth.

    In the near future, daily newspapers and monthly magazines will probably disappear. Electronic media（媒体） can provide the same information faster and cheaper. The Internet, together with laptops and mobile phones, makes it possible that almost everyone can at any time and in almost any place get some news for free or for few fees.

    You'll browse the computer newspapers or magazines just like turning on TV. An electronic voice will tell you stories about the latest events. You'll even get to choose the kind of voice you want to hear. Want more information on the brief story？ A simple touch makes the whole text appear.

    There are the predictions from the experts working on the newspapers of the future. Imagined as part of home media and entertainment systems, computer newspapers and magazines would unite printed and broadcast news, offering information and analyzing video images of news events.

    The continuing loss of readers will lead to a small number of advertisements in newspapers. It makes no sense to spend millions of dollars to print ads.

    With the development of technology, more and more electronic media have been created until now, but replacing the traditional newspapers and magazines has a long way to go, because the resistance to computer newspapers and magazines from journalism（新闻业） may be much stronger. Since it is such a cultural change, it may be not until the present journalists（新闻工作者）, who aren't used to it, die off that the newspaper industry is not considered as an industry any longer. Anyway, technology is making the traditional newspapers and magazines disappear gradually.

    On the banks of Tanzania's Lake Eyasi lives the world's last hunter-gatherer tribe (部落) — the Hadza. They don't grow food, raise animals or build houses. Instead they live a life unchanged for more than ten thousand years.

    Their world is one of complete freedom — something modern society can barely imagine and is unlikely to ever experience, let alone have the skills to stay alive. Text messages and phone calls don't exist. Nor do cars and electricity. No jobs, timetables, and social structures. No laws, taxes and unbelievably, no money — the closest thing to currency (交易) is the trade for a pair of shorts with a neighboring tribe.

    We spent our time with the Hadza hunting baboons (狒狒), a daily activity for the men. Their land is packed with sharp bushes, poisonous snakes and man-eating lions. But a successful hunting trip is the difference between eating or going hungry.

    The Hadza diet consists mainly of honey, fruit and meat. Men often hunt in pairs to shoot animals with bows and arrows. The Hadza show us how to track animals, from baboons to snakes to lions. They are hugely skilled with their handmade bows and arrows — we have a go and barely get the arrow to go three feet in front of us.

    The language of the Hadza is believed to be the oldest still-spoken language known to man. The Hadza don't have conflict, and have no memory of starvation. Their population never reaches numbers that cannot be supported through hunting or gathering. They never get from their land more than they need.

    Unlike modern-day office workers, the Hadza enjoy an extraordinary amount of free time. Their “work” — hunting for food — takes up around five hours of their day. They've been in such a state of peaceful existence for thousands of years.