There is a popular Chinese saying that “Fair skin(皮肤) will make up for three flaws(缺陷)”. This mentions the fact that in Chinese culture, it is believed that people who have fair skin are more beautiful. In Western culture, however, the opposite is true — many Westerners think tanned skin is prettier. The example shows that different cultures have different ideas of what they think is beautiful. These cultural meanings of the beauty, however, are no longer important. As more and more people travel overseas, ideas about beauty are being shared among cultures. The Internet has also made it easier for people to share different types of beauty since people are always posting pictures on social media. The result is an ever-changing idea of what is considered beautiful.

    The cultural practice of ear piercings, for example, has become a part of modern day culture.

    In Kenya, it is a tradition among Masai men and women to pierce and then make their ear

    lobes( 耳 垂 ) longer using ivory and wood or stones. They then wear colorful things on their ear lobes. This is a common practice since longer ear lobes are seen as a sigh of beauty. This tradition has now found its way into present-day culture. Nowadays, this might still seem unusual to some, but with more and more well-known actors and film stars showing off their longer ear lobes, it will finally become more fashionable.

    It is understood that different cultures around the world have different ways of showing beauty. However, since we now live in a worldwide society, people's views about beauty are always changing. With the help of the Internet, people are now able to easily borrow ideas from other cultures to help them stand out. So what new fashions can we expect to see in the future?

许多同学喜欢吃烤肉串，用炭火烤肉的过程是利用____的方式增加肉的内能的，木炭燃烧的过程是将____能转化为____能的过程．但科学表明，经常吃烧烤食品有害健康．

    In 1901, H. G. Wells, an English writer, wrote a book describing a trip to the moon. When the explorers (探险者) landed on the moon, they discovered that the moon was full of underground cities. They expressed their surprise to the "moon people" they met. In mm, the "moon people" expressed their surprise. "Why are you travelling to outer space when you don't even use your inner space?" they asked.

    H. G. Wells could only imagine the travel to the moon. In 1969, human beings really did land on the moon. People today know that there are no underground cities on the moon. However, the question that the "moon people" asked is still an interesting one. A growing number of scientists are seriously thinking about it.

    Underground systems (体系) are already in place. Many cities have underground car parks. In some cities, such as Tokyo, Seoul and Montreal, there are large underground shopping areas. The "Chunnel", a tunnel connecting England and France, is now completed.

    But what about underground cities? Japan's Taisei Corporation is designing a network of underground systems, called "Alice Cities". The designers imagine using surface space for public parks and using underground space for flats, offices, shopping and so on. A solar dome (太阳能穹顶) would cover the whole city.Supporters of underground development say that building down rather than building up is a good way to use the earth's space. The surface, they say, can be used for farms, parks, gardens, and wilderness. H. G. Wells's "moon people" would agree. Would you?