Land Art, sometimes referred to as Earth Art or Earthworks, is a form of art which involves using physical landscapes to create art, taking art out of the museum and into the outside world. Modern Land Art movement really got going in the 1960s when American artists began creating Land Art on a large scale. Today, works of modern Land Art can be seen all over the world, sometimes right alongside much older pieces of Land Art created by people who lived thousands of years ago.

    Land Art, which is not necessarily unchangeable, can take a number of forms. For examples, in 1970 Robert Smithson created the Spiral Jetty（螺旋状防波堤）, made of a collection of stones and mud, in the Great Salt Lake. The American artist made a large jetty in a spiral shape which sticks out into the waters of the lake.

    Reshaping the landscape is a common characteristic of Land Art, which can be created by moving parts around. People can also add things to the environment to create Land Art, like salt, which is added to the Spiral Jetty. It is possible to use plants. In all cases, Land Art is immovable.

    Land Art is designed to gradually form, change, and eventually decay（衰落）. That's one of the biggest differences between Land Art and most of the art one sees in the museums. Some works of art can exist only for a few hours or days. Others are exposed to rain and wind so that they develop and decay over time, which is part of the attractiveness in the eyes of the artists.

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    You have to shake hands when you're coming or going in Germany, but in Britain you usually only shake hands when you meet someone for the first time.

    You have to give your present in public in the Middle East to show it's not a bribe(贿赂), but it's good manners to give your present in private in Asia.

    You mustn't give cutlery（刀具） in Latin America because it suggests that you want to cut off the relationship. You mustn't give a clock in China because the Chinese word for clock is similar to the word for funeral(葬礼).

    “Come any time” means “I want you to visit me” in India. If you don't suggest a time and arrange a visit immediately, an Indian will think you are refusing the invitation.

    Offices are usually closed on Friday in Moslem countries.

    It's bad manners to discuss business at social occasion in India.

    In an English pub, you have to take your turn to buy a “round” drink for everyone in your group.

    The word advertising refers to any kind of public announcement that brings products and services to the attention of people. Throughout history, advertising has been an effective way to promote(促进)the trading and selling of goods. In the Middle Ages, merchants employed "town criers" to read public messages aloud to promote their goods. When printing was invented in the fifteenth century, pages of advertisements(ads)could be printed easily and were either hung in public places or put in books.

    By the end of the seventeenth century, when newspapers were beginning to be read by more people, printed materials became an important way to promote products and services. The London Gazette was the first newspaper to set aside a place just for advertising. This was so successful that by the end of the century several companies started businesses for the purpose of making newspaper ads for merchants.

    Advertising spread quickly throughout the eighteenth century. Ad writers were starting to pay more attention to the design of the ad text. Everything, from clothes to drinks, was promoted with clever methods such as repetition of the firm's name or product, words organized in eyecatching patterns, the use of pretty pictures and expressions easy to remember.

    Near the end of the nineteenth century, companies that were devoted to the production of ads came to be known as "advertising agencies(广告商)．"The agencies developed new ways to get people to think of themselves as members of a group. Throughout the twentieth century, advertising agencies promoted consumerism(消费主义)as a way of life, spreading the belief that people could be happy only if they bought the "right" products.

For some people, music is no fun at all. About four percent of the population is what scientists call "amusic". People who are amusic are born without the ability to recognize or reproduce musical notes (音调). Amusic people often cannot tell the difference between two-songs. Amusics can only hear the difference between two notes if they are far apart on the musical scale.

As a result, songs sound like noise to an amusic. Many amusics compare the sound of music to pieces of metal hitting each other. Life can be hard for amusics. Their ability to enjoy music sets them apart from others. It can be difficult for other people to identify with their condition. In fact, most people cannot begin to grasp what it feels like to be amusic. Just going to a restaurant or a shopping mall can be uncomfortable or even painful. That is why many amusics intentionally（故意地）stay away from places where there is music. However, this can result in withdrawal and social isolation. "I used to hate parties," says Margaret, a seventy-year-old woman who only recently discovered that she was amusic. By studying people like Margaret, scientists arc finally learning bow to identify this unusual condition.

    Scientists say that the brains of amusics are different from the brains of people who can appreciate music. The difference is complex, and it doesn't involve defective hearing. Amusics can understand other nonmusical sounds well. They also have no problems understanding ordinary speech. Scientists compare amusics to people who just can't sec certain colors.

Many amusics are happy when their condition is finally diagnosed. For years. Margaret felt embarrassed about her problem with music. Now she knows that she is not alone. There is a name for her condition. That makes it easier for her to explain. "When people invite me to a concert, I just say, 'No thanks. I'm amusic,'" says Margaret. "I just wish I had learned to say that when I was seventeen and not seventy."

    Some people think going to the gym takes time and effort, it often hurts, and it can be extremely boring. Most weight-related exercises are a combination of sets and reps(几次几组). In order to see any significant change from any one exercise, it will probably need to be repeated six to eight times, for a minimum of three sets, for about three months: Then there's aerobics(有氧运动). For some, there's nothing more boring than endless miles spent running on a treadmill(跑步机).

    But what if there is a way to reduce the boredom of exercise while still getting a good workout? Luckily for us, there's virtual reality (VR).

"In the past, playing video games was a sedentary(久坐不动的) experience," says Jo Stauffer of the VR Heaitn-institute, but VR changes all of that. " Many VR games are played while standing In order to play properly, the players are forced to move around swinging their arms or using their legs. After an hour of this on a regular enough basis, it's not surprising, that many people unexpectedly find themselves a little fitter. There are already a number of virtual reality games which, deliberately or not, result in their player "getting a good sweat on" if played for enough time. For example, there's a music game which forces players to shadow box(做空拳攻防练习) in order to hit the notes—that's an upper-body workout.

    The benefit of VR has been noticed by one company. They want to take the whole experience into the gym. They are making a resistance machine, designed to be used in combination with a VR headset. Players challenge a virtual competitor in a series of games, which results in a 30-minute full-body workout. However, the cost of the equipment is expensive and there are safety concerns to be worked out, says J. P. Gownder from the consultancy Forrester.

    Although it's early days, for those: of us who struggle to overcome the boredom of exercise, a new solution could be coming. And a world where a person can exercise and have fun at the same time might be something that many people would want-virtual or not. So don't give up exercising.

China is known as the home of tea.It is said that Shennong discovered tea around 2700 BCE.At first,tea leaves {#blank#}1{#/blank#}(chew).During the Tang Dynasty,{#blank#}2{#/blank#}(advance) were made in the processing of tea.The leaves were steamed,oxidized(氧化) and pounded into the cake form.This made tea easier {#blank#}3{#/blank#}(transport) and more pleasing to the tongue. 

The earliest batch(批次) of tea is often ready to be picked before Qingming.This precious small output of tea,widely {#blank#}4{#/blank#}(seek) after for its outstanding quality,is called Mingqian tea.The seasonal tea is known {#blank#}5{#/blank#} its tender leaves and fresh flavor.They have {#blank#}6{#/blank#} better favor than theater batches which can be grown overnight. 

East China's Zhejiang Province is acknowledged as a major producer of tea.In spring,local hillsides {#blank#}7{#/blank#}(fill) with tea workers sowing seeds on their land.In the peak seasons,many tourists flood to witness the beautiful scenery of tea farms for {#blank#}8{#/blank#}(they),while enjoying a cup of tea. 

There are many ways you can experience tea culture in China.You can visit a tea plantation in Hangzhou or elsewhere to learn {#blank#}9{#/blank#} tea is grown and harvested.You can sit inside a {#blank#}10{#/blank#}(tradition) teahouse and take in the classical atmosphere as you drink tea.