In 1943, when I was 4, my parents moved from Coeur d'Alene, Idaho, to Fairbanks, Alaska, where adventure was never very far away.

    We arrived in the summer, just in time to enjoy the midnight sun. All that sunlight was fantastic for Mum's vegetable garden. Working in the garden at midnight tended to throw her timing off, so she didn't care much about my bedtime.

    Dad was a Railway Express agent and Mum was his clerk. That left me in a mess. I usually managed to find some trouble to get into. Once I had a little fire going in the dirt basement of a hotel. I had tried to light a barrel(桶) of paint but couldn't really get a good fire going. The smoke got pretty bad, though, and when I made my exit, a crowd and the police were there to greet me. The policemen took my matches and drove me home.

    Mum and Dad were occupied in the garden and Dad told the police to keep me, and they did! I had a tour of the prison before Mum rescued me. I hadn't turned 5 yet.

    As I entered kindergarten, the serious cold began to set in. Would it surprise you to know that I soon left part of my tongue on a metal handrail at school?

    As for Leonhard Seppala, famous as a dog sledder(驾雪橇者), I think I knew him well because I was taken for a ride with his white dog team one Sunday. At the time I didn't realize what a superstar he was, but I do remember the ride well. I was wrapped(包裹) heavily and well sheltered from the freezing and blowing weather.

    In 1950, we moved back to Coeur d'Alene, but we got one more Alaskan adventure when Leonhard invited us eight years later by paying a visit to Idaho to attend a gathering of former neighbors of Alaska.

    November 11 is Veterans Day in the United States. A "veteran" is anyone who has served in the armed forces. The term "veteran" is not just for those who have served in wars. It describes anyone who has ever been in the army.

    On November11, people hold ceremonies(仪式) and parades(游行) to mark Veterans Day. Public officials take part in the events. Army bands play. And soldiers fire guns into the air to remember those who died in service to their country.

    The history of Veterans Day relates to World War I. Many people at the time called it "the war to end all wars." The United States entered the fighting in Europe in 1917. Over 13 million men and women were reported for duty in the army. World War I ended at 11 o'clock in the morning on November 11, 1918. The following year, President Woodrow Wilson signed an official statement to celebrate November 11th as Armistice Day in the United States. It would be a day to honor the men and women who had served in the U.S. armed forces during the war. In 1926, Congress made Armistice Day a national holiday.

    But new problems were on the way. Soon, everyone knew that World War I would not be the war to end all wars. In all, more than 4,000,000 Americans served in the armed forces during the first World War. And 16 million would serve during the second one.

    Armistice Day in 1945 was a special day in the United States. Germany had surrendered in May 1945 and Japan in August. Most men and women who had served in the war were home. So, instead of honoring just veterans of World War I, Americans also honored veterans of World War II. In 1954, Congress decided to change the name of Armistice Day. The holiday became Veterans Day.

    In the latter part of the 20th century, child labor remains a serious problem in many parts of the world. Studies carried out in 1979, the International Year of the Children, showed that more than 50 million children below the age of 15 were working in various jobs often under dangerous conditions. Many of these children live in underdeveloped countries in Latin America, Africa, and Asia. Their living conditions are crude and their chances for education small. The poor income they bring in, however, is necessary for the survival of their families. Frequently, these families lack the basic necessities of life—adequate food, decent（得体的、合适的）clothing and shelter, and even water for bathing.

    In some countries industrialization has created working conditions for children that are comparable to the worst features of the 19th-century factories and mines. In India, for example, some 20,000 children work 16-hour days in match factories.

    Child-labor problems are not, of course, limited to developing nations. They occur wherever poverty exists in Europe and the United States. The most important efforts to eliminate（根除）child-labor abuses throughout the world come from the International Labor Organization (ILO), founded in 1919 and now a special agency of the United Nations. The organization has introduced several child-labor conventions（规定）among its members, including a minimum（最低）age of 16 years for admission to all work, a higher minimum age of specific types of employment, compulsory（强制的）medical examinations, and It depends on voluntary obedience（服从）of member nations.

    It is natural that young people are often uncomfortable when they are with their parents. They say that their parents don't understand them. They often think that their parents are out of touch with modern ways, that they are too serious and too strict with their children, and that they seldom give their children a free hand.

    It is true that parents often find it difficult to win their children's trust and they tend(倾向) to forget how they themselves felt when young.

    For example, young people like to act on the spot without much thinking. It is one of their ways to show that they have grown up and they can face any difficult situation. Old people worry more easily. Most of them plan things in advance, at least in the back of their minds, and do not like their plans to be upset by something unexpected.

    When you want your parents to let you do something, you will have better success if you ask before you really start doing it.

    Young people often make their parents angry with their choices in clothes, in entertainment and in music. But they do not mean to cause any trouble; it is just that they feel cut off from the older people's world, into which they have not yet been accepted. That's why young people want to make a new culture of their own, and if their parents don't like their music or entertainment or clothes or their way of speech, this will make the young people extremely happy.

    Sometimes you are so proud of yourself that you do not want your parents to say “yes” to what you do. All you want is to be left alone and do what you like. It is natural enough, after being a child for so many years, when you were completely under your parents' control.

    If you prefer to control your life, you'd better win your parents over and try to get them to understand you. If your parents see that you have a high sense of responsibility, they will certainly give you the right to do what you want to do.

    Tens of thousands of ancient pictures carved into the rocks at one of France's most important tourist sites are being gradually destroyed. Scientists and researchers fear that the 36,000 drawings on rocks in Mont Bego in the French Alps are being damaged so rapidly that they will not survive for future generations.

    The mountain, believed to have once been a site for prayer, is scattered (散布) with 4,000-year-old drawings cut into bare rock. They include pictures of cows with horns, cultivated fields and various gods and goddesses. But as the popularity of the site increases, the pictures are being ruined by thoughtless graffiti (涂鸦).

    Jean Clottes is the chairman of the International Committee on Rock Art. He says, "People think that because the pictures have been there so long they will always continue to be there. But if the damage continues at this rate there will be nothing left in 50 years."

    He describes seeing tourists stamping on the drawings, wearing away the rock and definition (清晰) of the artwork as they do so. Some visitors, he says, even cut off parts to take home as souvenirs. "When people think they can't take a good enough photograph, they rub the drawings to get a clearer picture," he said. "The drawings are polished by the weather, and if the sun is shining and the visitors can't see them properly they simply rub them to make them look fresher." Other researchers describe how people arrive carrying long sticks with sharp ends to scratch (刮) their own drawings, or even their names, in the rocks.

    But experts are divided over the best way to preserve the drawings. Henry de Lumley, director of the Museum of Natural History in Paris, believes that the only way to save the site is to turn the whole mountain into a "no-go" area, preventing the public from going there except on guided tours. Otherwise, he says, not only will the site be completely destroyed but important research work will be reduced.

    Clottes disagrees, "The measure suggested by Henry de Lumley is the most severe, and while it is the most effective, it is also certain to bring about protests from people who live there," he said. "The site was classified as a historic monument years ago by the Ministry of Culture, and we must do as much as possible to save what is there."

    David Lavergne, the regional architect, also wants to avoid closing the site. "Henry de Lumley's idea isn't ideal," he said. "Our department feels that the best solution is to let people look at the site, but because the area is very big it is difficult to prevent visitors from damaging it. I would prefer that everyone was able to look at it, but the main problem is money. We do not have the funds to employ the necessary number of guards. We may have to consider charging a fee. It doesn't seem to be possible to get the government support."

    In the first few years of their lives, children brought up in English-speaking homes successfully master the use of hundreds of words, including those for objects, actions, emotions, and many other aspects of the physical world. However, when it comes to learning colour words, the same children perform very badly. If shown a blue cup and asked about its colour, typical two-year-olds seem as likely to come up with "red" as "blue".

    Cognitive (认知) scientists at Stanford University in California supposed that children's incompetence at colour-word learning may be directly linked to the way these words are used in English. They are used mostly in pre-nominal position (e.g. "blue cup"), in contrast to post-nominal position (e.g. "The cup is blue."). The difficulty children have may simply come down to the challenge of having to make predictions from colour words to the objects they refer to, rather than from the objects to the colour words.

    To explore this idea further, the research team recruited 40 English children aged between 23 and 29 months and carried out a three-phase experiment. It considered of a pre-test, followed by training in the use of colour words, and finally a post-test that was identical to the pre-test. The pre- and post- test materials comprised six objects that were unfamiliar to the children. There were three examples of each object in each of three colours — red, yellow and blue. The objects were presented on trays (托盘), and in both tests, the children were asked to pick out objects in response to requests in which the colour word was either a pre-nominal ("Which is the red one?") or a post-nominal ("Which one is red?").

    In the training, the children were introduced to five sets of familiar items (balls, cups, crayons, glasses, and toy bears) in each of the three colours. Half the children were presented with the items one by one and heard them labeled with colour words used pre-nominally, while the other half were introduced to the same items described with a post-nominal colour word. After the training, the children repeated the selection task on the novel items in the post-test. Correct choices on items that were consistent across the pre- and post-tests were used to measure children's colour knowledge.

    According to the assessment, children's performance was consistent when they were both trained and tested on post-nominal adjectives, and worst when trained on pre-nominal adjectives and tested on post-nominal adjectives. Comparing the pre- and post-test scores across each condition revealed a significant decline in performance when children were both pre- and post-tested with questions that placed the colour words pre-nominally.