Diamonds are considered the most famous and valuable jewel in the world. The precious stone for its great value is believed to be the symbol of wealth. Diamonds were made as a result of great volcanic beat and pressure. When a volcano is active, it sometimes explodes and causes great damage to the nearby towns.

    However, at the same time of such a disaster, diamonds were pushed towards the surface of the earth by a number of great volcanic explosions millions of years ago. Thus, it may be very likely to find a diamond after a volcanic eruption. Besides, diamonds are also found among the sand and stones of certain river beds, and in a few places on the floor of the sea, for they were washed down the mountain sides by the rain.

    Diamonds are very rare. There are not many places that produce such precious things in the world. During the last century adventurers from Europe went to Brazil, because they had heard that there were diamonds in the River Amazon. Many of these early diamond miners died of illness or were lost forever in the great forests. But some returned home rich.

    The earliest known diamonds were found in India many centuries ago. The most recent and exciting discoveries have been made in eastern Russia. But most of the world's diamonds now come from the Congo, from Tanzania-which has the largest diamond mine in the world and also from South Africa.

    Drive through any suburb in the U.S. Today, and it's hard to miss the recycling bins that have become companions to America's trash cans. Recycling has become common, as people recognize the need to care for the environment. Yet most people's recycling consciousness extends only as far as paper, bottles, and cans. People seldom find themselves facing the growing problem of e-waste.

    E-waste rapidly increases as the techno- fashionable frequently upgrade to the most advanced devices, and the majority of them end up in landfills (垃圾填埋地). Some people who track such waste say that users throw away nearly 2 million tons of TVs, VCRs, computers, cell phones, and other electronics every year. Unless we can find a safe replacement, this e-waste may get into the ground and poison the water with dangerous toxins (毒素), such as lead, mercury, and arsenic. Burning the waste also dangerously contaminates the air.

     However, e-waste often contains reusable silver, gold, and other electrical materials. Recycling these materials reduces environmental problems by reducing both landfill waste and the need to look for such metals, which can destroy ecosystems.

    A growing number of states have adopted laws to ban dumping e-waste. Still, less than a quarter of this waste will reach lawful recycling programs. Some companies advertising safe disposal in fact merely ship the waste to some developing countries, where it still ends up in landfills. These organizations prevent progress by unsafely disposing of waste in an out- of- sight, out- of- mind location.

    However, the small but growing number of cities and corporations that do handle e- waste responsibly represents progress toward making the world a cleaner, better place for us all.

    China is fondly remembering one of its most famous radio voices, a man whose vivid storytelling was a comfort to millions of people, from commuters stuck in traffic to restless teens struggling to sleep. Shan Tianfang, was a leading performer of the traditional Chinese art form pingshu, which translates as "storytelling".

    Pingshu dates from the Song Dynasty (AD960-1279) when performers would entertain villagers by telling stories in a particularly emotive style. It remains particularly popular in north-eastern China. Performers wear traditional dress and use very basic props - often a folded fan and a gavel. Pingshu is sometimes performed in tea houses and small theatres, but many Chinese associate the art form with radio. And in a country where sleeping problems are commonplace, pingshu is still popular as a way of helping people to wind down at bedtime.

    Shan Tianfang was born in 1934 in Yingkou, in north-eastern Liaoning province. His family introduced him to folk arts from a young age and he began learning pingshu when he was 19. He became known in Liaoning for his work on stage and in local teahouses during the 1950s and 1960s, and performed in an art troupe around the region. From 1966-1976, Shan, along with other pingshu performers like Yuan Kuocheng, was forced to stop work. During the 1980s.Shan made the transition (转型) to state-run radio, and his captivating storytelling became comfort listening for people across the country. By the 1990s, Shan had become a well-known face on state TV, even performing in the annual Spring Festival Gala show. He has died aged 84 following a long illness.

    Shan performed over 12,000 stories on TV and radio. His stories attracted people of all ages. One of his most acclaimed performances is of the Heroes in the Sui and Tang Dynasties. He gave countless performances of the “Four Classic Novels” (Romance of the Three Kingdoms, Journey to the West, Dream of the Red Chamber and Water Margin) and also helped to bring lesser-known classical Chinese literature to new audiences.

    He was able to use the medium to entrance his audience and in the process he helped to popularise classical Chinese literature. As film director Zhang Jizhong told the Global Times newspaper: “He could describe a scene and a character extremely vividly. He once had a long talk with me about adapting the heroic stories he told into films or television shows to help promote Chinese classics and traditional culture.”

    But in his later years, the growth of online and digital media exposed the challenges of keeping his art form alive. Shan turned his efforts towards writing books and opening performance schools to teach pingshu to young people. They included the Shan Tianfang Culture and Media Academy in Beijing, a Shan Tianfang teahouse and “storytelling base” in Anshan in Liaoning province. Meanwhile, modern productions of pingshu reference (引用，参照) contemporary  (现代的) culture to draw in new performers and audiences. Performers like Guo Heming have emerged, putting a modern spin on pingshu by adapting popular works, including the Harry Potter stories.

    Although he wasn't particularly active on social media, he amassed more than one million fans on the Sina Weibo platform.

A memorial was held for him on 15 September but millions of Chinese will miss his voice.

    Last Saturday on the way to the mall, two children, a boy and a girl, came running towards me with bottles in their hands, asking if I wanted bottled water. It was a surprising gesture. I was wondering if they were doing fund-raising. I knelt and asked them where their parents were and how much a bottle of water cost. Then two adult women came up to me explaining what the children were doing. “We are teaching the children to give without anything in return. We are teaching people to accept without giving in return.”

    Two mothers had bought bottled water and placed a sticker on all bottles with five different quotes (引述):

    ⒈Smile at everyone. You'll never know when someone may need it.

    ⒉If Plan A does not work, there are 25 more letters in the alphabet.

    ⒊Have a thirst for life. Every day is filled with possibilities.

    ⒋In your thirst for knowledge, be sure you don't drown in all the information.

    ⒌Dig your well before you're thirsty.

    The bottle I have has quoted No.5. A sudden change of attitude opened up between me, the mothers and the children. We are no longer strangers to each other. We were having such a great time chatting and I ended up helping them give away the rest of the bottled water.

    One young lady was so thankful that she happily accepted the water and said it was the best thing that happened to her all day since she had a bad day at work. A man refused and walked away saying “No, thanks”. A couple kept on bowing to us in gratitude. When it was all done, the children and I were giving each other high-five. It was so remuch fun. I think I had more fun doing this than the mothers and the children.

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