All over the world people enjoy sports. Sports help to keep people healthy and happy, and to live longer.

     {#blank#}1{#/blank#} They buy tickets or turn on their TVs to watch the games. Often they get very excited when their player or team wins.

     {#blank#}2{#/blank#} Football, for example, has spread around the world. Swimming is popular in all countries near the sea or in those with many rivers. What fun it is to jump into a pool or lake, whether in China, Egypt or Italy!  {#blank#}3{#/blank#} Think how many lovers to skate or ski in Japan, Norway or Canada.

    Some sports or game go back thousands of years, like running or jumping. Chinese wushu, for example, has a very long history. But basketball and volleyball are rather new. Neither one is a hundred years old yet. {#blank#}4{#/blank#} Water-skiing is one of the newest in the family of sports.

    People from different countries may not be able to understand each other, but after a game together they often become good friends. {#blank#}5{#/blank#} One learns to fight hard but fight fair, to win without pride and to lose with grace.

A. And think of people in cold countries.

B. Sports help to train a person's character.

C. Not a few people participate in different sports competitions themselves.

D. Many people like to watch others play games.

E. People aren't inventing new sports or games.

F. Some sports are so interesting that people everywhere take part in them.

G. People are inventing new sports or games all the time.

    Leaving Hanoi on a fiercely hot summer day,after an hour by air,Luang Prabang gradually appears below our airplane wings.From a few hundred meters above,my first impression of this UNESCO-listed heritage（遗产）is an area of green land and mountains,surrounded by snaking rivers.

    Encircled by mountains,the former royal capital of Luang Prabang is more than just the country's picture-perfect showpiece.

    Travelers will be attracted to Luang Prabang by the city's timeless peacefulness with its shiny Buddhist temples, French colonial architecture and friendly people.

    Tourists visiting Luang Prabang shouldn't miss the chance to see one of the most sacred（神圣的）Lao traditions, tak bat,or the Buddhist almsgiving ritual（仪式）,which dates back to the 14th century.

    As the sun rises in Luang Prabang,hundreds of Buddhist monks depart from their temples to gather their daily offerings,which most commonly are rice,fresh fruit and traditional sweet snacks.The daily alms gathering begins on the main street before spreading to all the side streets.

    Our group of six got out of our comfy beds at 5 am to join other local residents and tourists to offer alms to the monks.We kneeled by the roadside in front of the 3 Nagas Hotel on the main street with big baskets of steamed sticky rice,waiting quietly until monks of all ages passed by to accept our gifts.

    The daily ritual gives you a wonderful opportunity to experience an ancient Lao tradition.However,there are some strict rules if you wish to join the event.

    Firstly,shoulders,chests and legs must be covered in modest clothing as a mark of respect.You should also remain a suitable distance from the monks.Photographs may be taken,but from a distance and never use a camera flash.The ritual has to be performed in silence.Talking to or touching the monks at any time,even when making an offering,is not allowed.

    Another must-do morning activity is to visit the local market,where you can see the generosity that Mother Nature offers this dreamy land.While walking through the morning market,located within a long and narrow hamlet,I was excited to see all kinds of products from the nearby river and jungle: some ill-fated squirrels lying next to fresh bamboo shoots,different kinds of wild mushrooms and vegetables displayed on banana leaves and giant river catfish in baskets.

    Although Luang Prabang is small,there are many things to see here.Active travelers can get up close and personal with Laos' gentle giants at the elephant conservation camp or take in some scenes of riverside life with a cruise or kayak excursion on the rivers.Two waterfalls that are perfect for picnicking in the foothills nearby,and classes are available in traditional crafts.

    Why should mankind explore space? Why should money, time and effort be spent exploring and researching something with so few apparent benefits? Why should resources be spent on space rather than on conditions and people on Earth? These are questions that, understandably, are very often asked.

    Perhaps the best answer lies in our genetic makeup as human beings. What drove our ancestors to move from the trees into the plains, and on into all possible areas and environments? The wider the spread of a species, the better its chance of survival. Perhaps the best reason for exploring space is this genetic tendency to expand wherever possible.

    Nearly every successful civilization has explored, because by doing so, any dangers in surrounding areas can be identified and prepared for. Without knowledge, we may be completely destroyed by the danger. With knowledge, we can lessen its effects.

    Exploration also allows minerals and other potential resources to be found. Even if we have no immediate need of them, they will perhaps be useful later. Resources may be more than physical possessions. Knowledge or techniques have been acquired through exploration. The techniques may have medical applications which can improve the length or quality of our lives. We have already benefited from other spin-offs including improvements in earthquake prediction, in satellites for weather forecasting and in communications systems. Even non-stick pans and mirrored sunglasses are by products(副产品) of technological developments in the space industry!

    While many resources are spent on what seems a small return, the exploration of space allows creative, brave and intelligent members of our species to focus on what may serve to save us. While space may hold many wonders and explanations of how the universe was formed or how it works, it also holds dangers. The danger exists, but knowledge can help human beings to survive. Without the ability to reach out across space, the chance to save ourselves might not exist.

    While Earth is the only planet known to support life, surely the adaptive ability of humans would allow us to live on other planets. It is true that the lifestyle would be different, but human life and cultures have adapted in the past and surely could in the future.

    While the start of a new school year is always exciting, this year was even more so for some elementary school students in Auckland, New Zealand. They became the world's first kids to be "taught" by a digital teacher, Will. Before you start imagining a human-like robot walking around the classroom, Will is just an avatar(化身) that turns up on the students' desktop, tablet, or smartphone screen when called.

    Thanks to a digital camera and microphone, the avatar not only responds to questions the kids may have, but also picks up non-verbal signals. For example, if a student smiles at Will, he responds by smiling back. This two-way communication not only helps draw the students' attention, but also allows the program's developers to monitor their involvement(参与) and make changes if needed.

    Vector's Chief Digital Officer, Nikhil Ravishankar, believes that Will-like avatars could be a novel way to attract the attention of the next generation. He says, "Using a digital human is a very popular method to deliver new information to people, and I have a lot of hope in this technology as a means to deliver rich and educational experience in the future." Greg Cross, the Chief Business Officer for Soul Machines, states that kids who have grown up in this digital time adapt(适应) to new technology quickly, and he hopes to develop the idea of digital humans in the area of educate further.

    The program, in place since August 2018, has been a great success so far. However, no mater how popular it becomes, Will is unlikely to replace human educators any time soon. For one, the avatar's knowledge base is severely limited. But more importantly, even the smartest digital avatars could never predict and react to all the unexpected situations that educators have to deal with on a daily basis. However, it could come in handy as a "personal teacher", providing kids with one-on-one help on the subjects or even topics.

    More and more people like bicycling and it is no surprise. It is fun, healthy and good for the environment.

    Maybe that's why there are 1.4 billion bicycles and only 400 million cars on roads worldwide today. Bikes can take you almost anywhere, and there is no oil cost! Get on a bicycle and ride around your neighborhood. You may discover something new all around you. Stopping and getting off a bike is easier than stopping and getting out of your car. You can bike to work and benefit(受益)from the enjoyable without polluting the environment. You don't even have to ride all the way.

    Folding(折叠) bikes work well for people who ride the train. Just fold the bike and take it with you. You can do the same on an airplane. A folding bike can be packed in a suitcase. You can also take a common bike with you when you fly. But be sure to look for information by getting on airline websites. Not all airlines are bicycle-friendly to travelers.

    Health benefits of bicycling

    It helps to prevent heart diseases

    Bicycling helps to control your weight

    A 15-minute bike ride to and from work three times a week burns off five kilos of fat in a year.

    Bicycling can improve your mood.

    Exercise like bicycling has been shown to make people feel better, more relaxed and self-confident.

Writing an art exhibition review is a creative experience that helps you express your ideas about an artist's work. Your review will provide a description (说明) of an art exhibit.{#blank#}1{#/blank#}Here are some tips that may help you write a good art exhibition review.

Walk through the show to watch the artwork. Spare 1-2 hours to experience the art exhibit so you have plenty of time to examine the artwork. Move through the exhibit slowly, examining each piece of artwork. Besides, make several passes through the exhibit. {#blank#}2{#/blank#}

Take notes on the description, the form and your impression. Be as detailed as possible so you can use your notes to write the full review. First, note the title and theme of each work. {#blank#}3{#/blank#} Finally, record your impression on the art, how it made you feel, and what worked or didn't work within the piece.

{#blank#}4{#/blank#} While you don't need to include audience responses in your review, it may help you improve your own review of the show. Watch flow others comment on the exhibit and write down the sentences that they say.

Talk to the artists if they're present at the exhibit. If you attend on the opening night, you may meet the artists. {#blank#}5{#/blank#} Ask about what they hope the audience will experience, and how they created their works. Take notes on what they say so you can use the information to write your review.

A. Notice how others are reacting to the artwork.

B. The reasons can be explained from several aspects.

C. These will help you find something new about the works.

D. Take the chance to chat with them about what inspired their works.

E. Besides, compare your review with other reviews to find out the differences.

F. Then write down the medium, materials, and techniques used to create the piece.

G. This helps visitors know what to expect from the exhibit and gives advice to the artist.