In the United States, when one becomes rich, he wants people to know it. And even if he does not become very rich, he wants people to think that he is. That is what “keeping up with the Joneses” is about. It is the story of someone who tried to look as rich as his neighbors.

    The expression was first used in 1913 by a young American called Arthur Momand. He told this story about himself. He began earning $ 125 a week at the age of 23. That was a lot of money in those days. He got married and moved with his wife to a very wealthy neighborhood outside New York City. When he saw that rich people rode horses, Momand went horseback riding every day. When he saw that rich people had servants, Momand and his wife also hired a servant and gave big parties for their new neighbors.

    It was like a race, but one could never finish his race because one was always trying to keep up. The race ended for Momand and his wife when they could no longer pay for their new way of life. They moved back to an apartment in New York City.

    Momand looked around him and noticed that many people do things just to keep up with rich lifestyle of their neighbors. He saw the funny side of it and started to write a series of short stories. He called it “Keeping up with the Joneses” because “Jones” is a very common name in the United States. “Keeping up with the Joneses” came to mean keeping up with rich lifestyle of the people around you. Momand's series appeared in different newspapers across the country for over 28 years.

    People never seem to get tired of keeping up with the Joneses. And there are “Joneses” in every city of the world. But one must get tired of trying to keep up with the Joneses because no matter what one does, Mr. Jones always seems to be ahead.

    It is a tall tale（夸张的故事）that terrifies most young children. Swallow a piece of chewing gum and it will remain in your body for seven years before it is digested. An even worse tale is that swallowed（吞） gum can wrap itself around your heart.

    But what does happen if you should accidentally eat a stick of gum? Chewing gum is made out of gum base, sweeteners, coloring and flavoring. The gum base is pretty indigestible(难消化的)—it is a mixture of different ingredients (成分) that our body can't absorb.

    Most of the time, your stomach really cannot break down the gum the way it would break down other foods. However, your digestive system has another way to deal with things you swallow. After all, we eat lots of things that we are unable to fully digest. They keep moving along until they make it all the way through the gut (肠子) and come out at the other end one or two days later.

    The saliva (唾液) in our mouths will make an attempt at digesting chewing gum as soon as we put it in our mouths. It might get through the shell（壳） but many of gum's base ingredients are indigestible. It's then down to our stomach muscles—which contract(收缩) and relax, much like the way an earthworm moves—to slowly force the things that we swallow through our systems.

    Swallowing a huge piece of gum or swallowing many small pieces of gum in a short time can cause a blockage within the digestive system, most often in children, who have a thinner digestive tube than adults—but this is extremely rare.

    Energy goes from one plant or animal to another. A food chain shows how this energy moves. Each time an animal gets eaten, its energy is passed onto the animal that eats it. The food chain is very important because it keeps the balance of nature. If one part of the food chain disappears, it can affect all the other plants and animals. Any threat to the food chain is a threat to the environment's biodiversit(生物多样性). The food chain helps keep animal populations in balance. However, if something happens to increase or decrease one of the links in the food chain, that balance is broken. If one animal becomes endangered, it puts all the animals above it at risk.

    Some of the threats are natural, such as wildfires, hurricanes, tornados, floods and so on. But the biggest threats to the food chain come from you and me. These threats include overhunting, overfishing, logging, farming, development, pollution, etc. The food chain is endangered anywhere humans have had an effect on the natural environment.

    A recent study shows that the overfishing of large sharks is damaging the food chain along the US Atlantic coast. Canadian and American scientists say sharks are being killed in great numbers for their meat and fins(鳍). Now, not enough sharks are around to eat the cownose(牛鼻) ray. The ray's population has increased and they have eaten up the shellfish to the point where it has hurt commercial(商业的) fishing.

    Many of us disturb the natural environment in our own backyards. It's up to us to take care of the environment and try not to disrupt the natural food chain. If we don't act responsibly, animals will start disappearing.

Dear Maya Shao­ming,

    To me, June 6, 1990 is a special day. My long­awaited dream came true the minute your father cried, "A girl！"You, little daughter, are the link to our female line, the legacy of another woman's pain and sacrifice 31 years ago.

    Let me tell you about your Chinese grandmother. Somewhere in Hong Kong, in the late fifties, a young waitress found herself pregnant(怀孕) by a cook. She carried the baby to term, suffered to give it birth, and kept the little girl for the first three months of her life. I like to think that my mother—your grandmother—loved me and fought to raise me on her own, but the daily struggle was too hard. Worn down by the demands of the new baby and perhaps the constant threat of starvation, she made the painful decision to give away her girl so that both of us might have a chance for a better life.

    Having a baby in her unmarried state would have brought shame on the family in China, so she probably kept my existence a secret. Once I was out of her life, it was as if I had never been born. And so you and your brother and I are the missing leaves on a family tree.

    Do they ever wonder if we exist?

    Before I was two, I was adopted by an Anglo couple. I grew like a wild weed and grasped all the opportunities they had to offer—books, music, education, church life and community activities. In a family of blue­eyed blonds, though, I stood out like a sore thumb. Moody and impatient, burdened by fears that none of us realized resulted from my early years of need, I was not an easy child to love. My mother and I conflicted countless times over the years, but gradually came to see one another as real human beings with faults and talents. Lacking a mirror image in the mother who raised me, I had to seek my identity as a woman on my own. The Asian American community has helped me regain my double identity.

    But part of me will always be missing: my beginnings, my personal history, all the delicate details that give a person her origin. Nevertheless, someone gave me a lucky name "Siu Wai". "Siu" means "little", and "Wai" means "clever". Therefore, my baby name was "Clever little one". Who chose those words? Who cared enough to note my arrival in the world?

    I lost my Chinese name for 18 years. It was Americanized for convenience to "Sue". But like an ill­fitting coat, it made me uncomfortable. I hated the name. But even more, I hated being Chinese. It took many years to become proud of my Asian origin and work up the courage to take back my birth name. That, plus a little knowledge of classroom Cantonese, is all the Chinese culture I have to offer you. Not white, certainly, but not really Asian, I try to pave the way between the two worlds and bridge the gap for you. Your name, "Shao­ming", is very much like mine—"Shao" means "little". And "ming" is "bright", as in a shining sun or moon. Whose lives will you brighten little Maya? Your past is more complete than mine and each day I cradle you in your babyhood, generously giving you the loving care I lacked for my first two years. Sweet Maya, it doesn't matter what you "become" later on. You have already fulfilled my wildest dreams.

    I love you,

Mummy

    Americans wear black for mourning (哀悼) while Chinese wear white. Westerners think of dragons as monsters. Chinese honor them as symbols of God. Chinese civilization has often shown such polarities (对立)with the West, as though each stands at extreme ends of a global string. Now in the University of California, Berkeley, a psychologist, has discovered deeper polarities between Chinese and American cultures—polarities that go to the heart of how we reason and discover truth.

    His findings go far toward explaining why American cultures seem to be aggressive and Chinese cultures so passive, when compared to each other. More importantly, the research opens the way for the peoples of the East and the West to learn from each other in basic ways. The Chinese could learn much from Western methods for determining scientific truth, said Kaiping Peng, a former Beijing Scholar, who is now a UC Berkley assistant professor of psychology. And Americans could profit enormously from the Chinese tolerance for accepting contradictions in social and personal life, he said.

    "Americans have a terrible need to find out who is right in an argument," said Peng. "The problem is that at the interpersonal level you really don't need to find the truth, or maybe there isn't any." Chinese people, said Peng, are far more content to think that both sides have advantages and disadvantages, because they have a whole awareness that life is full of contradictions. They do far less blaming of the individual than do Americans, he added.

    In studies of interpersonal (人际的) argument, for example, when subjects were asked to deal with contradictory information resulting from conflict between a mother and a daughter or a student and a school, Peng found that Americans were "non-compromising (折中), blaming one side—usually the mother—for the causes of the problems, demanding changes from one side to attain a solution and offering no compromise" in dealing with the conflict. Compared to this angry, blaming American method, the Chinese were paragons (模范) of compromise, finding fault on both sides and looking for solutions that moved both sides to the middle.

Don't ignore (忽略) the difference teenagers can make.

John Michael Thomas, 14, Florida

When John Michael Thomas decided to honor his friend and classmate Elizabeth Buckley, who died from cancer, he remembered how much she loved peacocks (孔雀).

He wanted to build a life-sized peacock fountain (喷泉) in Elizabeth's favorite park in the city. He thought it could be a place for people to relax and be inspired.

John Michael raised $52,000 to build the fountain.

Barrett England, 13, Utah

The wheels began to turn for Barrett England when he heard about Karma Bike shop, a place where young people can earn free bikes by reading and performing community (社区) service.

Barrett visited Karma's owner with his idea: He would collect and repair used bikes and donate them to the shop.

He expected to get about 10 donated bikes. In the end, Barrett received 39.

Zachary Blohm, 15, Wisconsin

The 25-year-old playground at an elementary school near Milwaukee, Wis. was so small that only 70 of its 575 students could play on it at a time.

That's when Zachary Blohm saved the day. He and some volunteers wanted to build a huge playground. To raise money, Zac planned T-shirt and bake sales, sold tickets and more. He held monthly money-raising events for more than a year. Overall, he collected $130,000 — enough to finish his project.

Jack Zimmerman, 16, New Jersey

For some people, finding a meal is as simple as opening the refrigerator. For more than 366,000 hungry kids in New Jersey, it's not that easy.

That fact didn't sit well with Jack Zimmerman, who organized a drive to lessen childhood hunger in his state. His goal: create 40,000 packaged meals that could be donated to those in need.

On game day, Jack and his volunteers started their work. After the final count, the team had packaged 47, 124 meals—well above Jack's goal.