Have you ever been to the world's smallest bookstore?

    The World's Smallest Bookstore, whose official name is just these three words, sits quietly about 100 miles northeast of Toronto.

    The bookstore is about 10 feet by 10 feet，so it is easy to imagine how tiny it really is. The bookstore is open 24 hours a day. Inside the bookstore are various books, especially literary books and classic authors' works. So if you are looking for something less popular, you may get a bit disappointed there.

Another special feature of this bookstore is that each book only costs three dollars. All the expenses are paid on the honor system, which means buyers should make a note of what they've bought and leave their money by themselves. So the tools of the trade in this bookstore are quite simple: pens, papers, light bulbs and a label-maker.

    In order to catch passers-by's attention, the billboards (广告牌) of the bookstore are several times bigger than the store itself. With these large eye-catchers, many people are willing to stop by and have a visit.

    On plenty of drives with my mom through my childhood, she would suddenly pull over the car to examine a flower by the side of the road or rescue a beetle from tragedy while I, in my late teens and early twenties, sat impatiently in the car.

    Though Mother's Day follows Earth Day, for me, they have always been related to each other. My mom has been “green” since she became concerned about the environment. Part of this habit was born of thrift (节俭). Like her mother and her grandmother before her, mom saves glass jars, empty cheese containers and reuses her plastic bags.

    Mom creates a kind of harmonious relationship with wildlife in her yard. She knows to pick the apples on her trees a little early to avoid the bears and that if she leaves the bird feeders out at night, it is likely that they will be knocked down by a family of raccoons (浣熊). Spiders that make their way into the house and are caught in juice glasses will be set loose in the garden.

    I try to teach my children that looking out for the environment starts with being aware of the environment. On busy streets, we look for dandelions(蒲公英) to fly in the wind; we say hello to neighborhood cats and pick up plastic cups and paper bags. This teaching comes easily, I realize, because I was taught so well by example. Mom didn't need to lecture; she didn't need to beat a drum to change the world. She simply slowed down enough to enjoy living in it and with that joy came mercy and an instinct(直觉) for protection.

    I am slowing down and it isn't because of the weight of my nearly forty years on the planet, it is out of my concern for the planet itself. I've begun to save glass jars and reuse packing envelopes. I pause in my daily tasks to watch the squirrels race each other in the trees above my house.

    Last summer, in the company of my son and daughter, I planted tomatoes in my yard. With the heat of August around me, I ate the first while sitting on my low wall with dirt on my hands. Warm from the sun, it burst on my tongue with sweetness. I immediately wanted to share with my mom.

    Teenagers enter their adolescent years with a mixture of optimism, excitement and anxiety. Adolescence is a time when boys and girls begin to show greater independence from their parents. It is also a time when young people begin to develop the sense of individuality that will help shape their future identity as adults. In fact, showing independence and forming a unique identity are two of the most important developmental tasks that adolescents must finish in preparation for satisfying and productive adult lives.

    It is not easy for parents or teenagers to go smoothly through this period. Adolescents want to be independent of their parents and make their own decisions. They often do not recognize their need for adults' guidance and support.

    However, some parents find it easy to keep the lines of communication open with an adolescent child. These parents are often noticed by the child as stable sources of positive influence, and the teen feels supported in his or her growing independence. Communication in such families characterized by mutual(互 相的) respect and the ability to freely exchange feelings and ideas. Parents who understand their teenager's need for a reasonable measure of independence and individuality encourage their child's growth and achievements. This positive interest strengthens parent-child relationships. When adolescents receive parental approval and believe that parents really value their accomplishments, it creates a willingness to share other information about themselves.

    Many parents find it difficult to have open communication with their child during the adolescent years. Some parents have difficulty understanding the changes their teenager is experiencing and pay little attention to his or her need to pull away from the family and make independent decisions. At the same time, some teenagers are so self-focused that they do not appreciate or accept their parents' concern, and they are against all parental authority. In this case, frequent arguments may develop, and family life may become difficult. Parents and teenagers may separate from one another to avoid arguments, but this is usually a short-term solution that does not clear up the main problems.

    A major long-term method is to help them develop more effective communication. This enables the family members to end their conflicts(矛盾) and to establish more harmonious and more satisfying relationships.

Best Way to Save Money

    Although the best way to save money can vary from person to person, depending on age, family size and other characteristics, there are still some easy things that all shoppers can do to keep more money in their bank accounts.

    Avoid Impulse (冲动的) Purchases

    When you shop, a best way to save money is to have a plan in mind to help you avoid impulse purchases. For instance, you might leave your credit cards at home and only carry the exact amount of cash that you will need for your planned purchase. Some shoppers agree to discuss any purchases over a certain dollar amount with their spouses (配偶) first.

    Know When to Pay for Quality

    Sometimes the best way to save money in the long term is to spend a little more money right now. A good piece of furniture can stay in the family for decades. A high-quality pair of shoes will last longer than a bargain pair and prevent foot pain. Leaner cuts of meat and organic produce provide health benefits for your family.

    Buy Secondhand

    Check classified ads, thrift stores and garage sales for used clothing, toys, furniture, and much more available at a part of their original cost. For the most secondhand savings, check out groups like Freecycle where members offer unwanted items for free to anyone willing to pick them up.

    Borrow Instead of Buy

    If you're only going to use something once, try to borrow it instead of spending your money on it. Borrow a tool from your neighbor. Swap books with a friend. Check out the resources at your local library. You'll also be reducing disorder in your home.

    Have you ever imagined what it would be like to see the world through an animal's eyes? For example, what a chimpanzee sees as it sits at the top of a tree, or a penguin's view as it dives into the sea to catch its dinner?

    These questions are answered in the nature documentary Animals with Cameras, produced by the BBC. The three-part series was first aired in the UK last month. To explore animal stories "told" by the animals themselves, the documentary's filmmakers worked with scientists to develop cameras that wild animals could wear.

    "Never before have we seen such high-quality footage (连续镜头)directly from the animal's point of view, " BBC Nature executive producer Fred Kaufman told PBS." This miniseries greatly expands our comprehension of animal behavior and this camera technology opens up new possibilities for discovering so much more."

    Indeed, the groundbreaking technology provides a new viewpoint of the animal kingdom. New cameras with enough battery life to shoot for hours at a time were designed to be comfortable enough for animals to wear, according to the documentary's camera designer Chris Watts.

    The technical challenges didn't stop there. Some animals were very curious about the equipment, with some even fighting each other for the chance to wear a camera. In the case of chimpanzees, "we had to create dummy (仿造的)cameras, so that every chimpanzee could get one", the miniseries' wildlife cameraman Gordon Buchanan told Live Science.

    For animals that were comfortable enough to be with human beings, the cameras could be fitted and removed by hand. But for others, the cameras came off automatically using a timed release and were collected afterward. This meant that the cameras needed to be as tough as possible.

    To avoid disturbing the animals, scientists who were good at dealing with wildlife came to help by putting the cameras on the animals." The last thing we want to do is cause them distress." the documentary's producer Dan Rees told the BBC. "To follow an animal in the first place, there had to be a clear benefit in terms of knowledge about it that might be useful to protecting a species in the future.

    Their efforts certainly paid off. " Footage that captures (捕捉)these rare and exciting glimpses of animals bidden habits is important to scientists, but documentaries like Animals with Cameras also resonate with (引起共鸣)audiences, connecting them with the beauty - and danger - of wildlife in their natural environments," Live Science noted.