Off the coast of Hawaii's Big Island swim masses of colorful tropical fish. Some of these fish will be caught and sold, ending up in aquariums around the world. Is the industry putting populations of the fish at risk?

    Scientists who have studied the Big Island fishery say it is well managed. Rules put in place more than 15 years ago have helped to protect the fish. Along 35% of the coastline, for example, fish collecting is banned. Two years ago, the state cut the number of fish species for the aquarium trade from hundreds to just 40.

    Conservationist Robert Wintner objects to the findings. Wintner, who owns snorkel shops across Hawaii, started the Snorkel Bob Foundation to protect the island's coral reefs(珊瑚礁). He says he simply doesn't see yellow tang(刺尾鱼)in the protected areas. “There should be millions of them,” he says. “Where are they?”

    Wintner says people believe the numbers in reports. But few people have actually dived into the coral reefs to see for themselves how many fish can be found there. According to Wintner, the coral reefs along the coast should be filled with yellow tang, but they are “virtually empty”. Empty reefs are not good for tourism, Wintner points out, which brings out $800 million yearly. By contrast, the aquarium-fish trade brings out just $2 million yearly.

    In Europe many people died during the Second World War. As a result, at the end of the war there were many orphans (孤儿) there. A man called Hermann Gmeiner wanted to help these children. His idea was simple. He wanted orphans to have a home, and he wanted them to have the care and kindness of parents. Gmeiner asked people to give him some money. With this money he built the first SOS Children's Village at Imst, in Austria. It opened in1949. This is how the SOS stand for “Save Our Souls（灵魂）.” This means, “Please help us!” An SOS Children' village gives help to orphans. Hermann Gmeiner's idea for helping orphans soon spread（传播）all over the world. By 1983 there were 170 SOS Children's Villages in the world. People in many countries give money to help the villages.

    Today the children from the first village have grown up. Now some of them work in other SOS Children's Villages. In SOS Villages orphans live in family groups. There are several houses in each village. The biggest village has 40 or 50 houses! Between seven and ten children live in a house. A woman lives with each group of children and looks after them. She gives the children a lot of love and kindness. She cooks meals for them and makes comfortable, happy home for them.

    Of course, the children don't spend all their time in the village. They go to school; they go out with their friends. But the village gives them a home—sometimes for the first time in their lives.

Dear Miss Hanff,

    You will be glad to know that the two boxes of eggs and the tins of tongue have all arrived safely and once again we all wish to thank you most sincerely for your extreme generosity. Mr. Martin, one of the older members of our staff, has been on the sick list for some time and we therefore let him have the lion's share of the eggs, one whole boxful in fact, and of course he was delighted to get them. The tins of tongue look very inviting and will be a welcome addition to our larders (食物橱) and in my case will be put on one side for a special occasion.

    I enquired at all the local music shops but was unable to get the Messiah or Bach's St. Matthew Passion in stiff covers in clean, secondhand copies, and then I found they were available from the publisher in new editions. Their prices seemed a bit high, but I thought I had better get them and they have been sent by Book Post a few days ago, so should arrive any day now. Our invoice, total $4.20, is enclosed with the books.

    We are sending you a little gift for Christmas. We do hope you will not have to pay any duty on it. We will mark it "Christmas Gift" and keep our fingers crossed. Anyway, we hope you will like it and accept it with our sincere best wishes for Christmas and the coming year.

    My name is certainly not of Welsh origin. As it is pronounced to rhyme with the French word "Noel", I think there may be a possibility that it originated in France.

Yours sincerely,

Frank Doel

    As a college student, I have planned my future career goals. I would like to work as a sales assistant in a computer company, then a sales manager and finally boss of my own company.

    At the very beginning, I plan to find a job in a famous company producing computers, in which all the staff are fully happy at work and I can experience job satisfaction most of the time. Only such kind of company can provide me with good working atmosphere and eagerness to learn more so as to get well prepared for my future profession.

    At first I want to be a sales assistant and always keep myself busy working in and out of the company, such as, answering telephones, doing repair work, even cleaning the rooms. Although the salary may be low, I will seize every chance to learn from other staff. In my spare time, I will take some courses so as to get more qualifications and experience in this field. In three or five years, I am determined to become a sales manager who is responsible for the selling of the computers. I will interview as many customers as possible and do market research and improve our products. Meanwhile I will take care of my staff to make them eager to work to the best of their abilities.

    As is known to us, it is hard to manage a company, but I will make every effort to achieve my goal step by step, and I am sure "There is nothing difficult in the world if you put your heart into it."

    The famous director of a big and expensive movie planned to film a beautiful sunset over the ocean, so that the audiences could see his hero and heroine in front of it at the end of the film as they said goodbye to each other forever. He sent his camera crew out one evening to film the sunset for him.

    The next morning he said to the men, "Have you provided me with that sunset?"

    "No, sir," the men answered.

    The director was angry. "Why not?" he asked.

    "Well, sir," one of the men answered, "we're on the east coast here, and the sun sets in the west. We can get you a sunrise over the sea, if necessary, but not a sunset."

    "But I want a sunset!" the director shouted. "Go to the airport, take the next flight to the west coast, and get one."

    But then a young secretary had an idea. "Why don't you photograph a sunrise," she suggested, "and then play it backwards? Then it'll look like a sunset."

    "That's a very good idea!" the director said. Then he turned to the camera crew and said, "Tomorrow morning I want you to get me a beautiful sunrise over the sea."

    The camera crew went out early the next morning and filmed a bright sunrise over the beach in the middle of a beautiful bay. Then at nine o'clock they took it to the director. "Here it is, sir," they said, and gave it to him. He was very pleased.

    They all went into the studio. "All right," the director explained, "now our hero and heroine are going to say goodbye. Run the film backwards so that we can see the 'sunset' behind them."

    The "sunset" began, but after a quarter of a minute, the director suddenly put his face in his hands and shouted to the camera crew to stop.

    The birds in the film were flying backwards, and the waves on the sea were going away from the beach.

Deep below the ground, radioactive elements break up water molecules(分子), producing substances that can fuel subsurface life. This process, known as radiolysis(辐射分解),has supported bacteria in tiny cracks filled with water on Earth for millions to billions of years. Now a study published in Astrobiology shows that radiolysis may have supported life in the Martian subsurface. 

Dust storms, rays in the universe and solar winds ruin the Red Planet's surface. But below, some life might find shelter. "The best survival habitat on Mars is the subsurface," said Jesse Tarnas, a planetary scientist at NASA, Examining the Martian underground could help scientists learn whether life existed there. And the best subsurface samples available today are Martian meteorites(陨石) that have crash-landed on Earth.

Tarnas and his colleague looked at the minerals on the Martian surface and how many radioactive elements there were, using satellite and rover data, They used computers to simulate(模拟) radiolysis to see how efficiently the process would have generated life-supporting hydrogen gas and other chemical substances. They reported that if water was present, radiolysis could have supported life for billions of years and perhaps still could today. 

Scientists had previously studied Mars radiolysis, but this marked the first estimate using Martian rocks to see how habitable Mars underground might be. Tarnas and his colleagues also evaluated the potential richness of life in Martian underground.They found that up to a million bacteria could exist.in just one kilogram of rock, The most habitable seemed to be the southern highlands of Mars, which is the most ancient area on Mars, according to Tarnas.

"Underground life would require water and it remains unknown if groundwater exists on the planet," says Lujendra Ojha, a planetary scientist at Rutgers University. Determining whether the Martian, subsurface contains water. will be an important next step, but this investigation helps to motivate that search, Ojha says, "Where there is groundwater, there could be life."