Proudly reading my words, I glanced around the room, only to find my classmates bearing big smiles on their faces and tears in their eyes. Confused, I glanced toward my stone-faced teacher. Having no choice, I slowly raised the report I had slaved over, hoping to hide myself. “What could be causing everyone to act this way?”

    Quickly, I flashed back to the day Miss Lancelot gave me the task. This was the first real talk I received in my new school. It seemed simple: go on the Internet and find information about a man named George Washington. Since my idea of history came from an ancient teacher in my home country, I had never heard of that name before. As I searched the name of this fellow, it became evident that there were two people bearing the same name who looked completely different! One invented hundreds of uses for peanuts, while the other led some sort of army across America. I stared at the screen, wondering which one my teacher meant. I called my grandfather for a golden piece of advice; flip (掷) a coin. Heads—the commander, and tails—the peanuts guy. Ah! Tails, my report would be about the great man who invented peanut butter, George Washington Carver.

    Weeks later, standing before this unfriendly mass, I was totally lost. Oh well, I lowered the paper and sat down at my desk, burning to find out what I had done wrong. As a classmate began his report, it all became clear, “My report is on George Washington, the man who started the American Revolution.” The whole world became quite! How could I know that she meant that George Washington?

    Obviously, my grade was awful. Heartbroken but fearless, I decided to turn this around. I talked to Miss Lancelot, but she insisted: No re-dos; no new grade. I felt that the punishment was not justified, and I believed I deserved a second chance. Consequently, I threw myself heartily into my work for the rest of the school year. Ten months later, that chance unfolded as I found myself sitting in the headmaster's office with my grandfather, now having an entirely different conversation. I smiled and flashed back to the embarrassing moment at the beginning of the year as the headmaster informed me of my option to skip the sixth grade. Justice is sweet!

    When your child lies to you, it hurts. As parents, it makes us angry and we take it personally. We feel like we can never trust our child again. Why does lying cause such anger, pain and worry for parents?

    Parents are understandably very afraid of their children getting hurt and getting into trouble, but they have very little protection against these things as they send their kids out into the word. Kids learn from other kids and from external media, and this makes parents feel unsafe because they can't control the information and ideas that their children are exposed to.

    When your kid lies, you start to see him as “sneaky（卑鄙的）”, especially if he continues to lie to you. You feel that he's going behind your back. You begin to think that your kids are “bad”. Because, certainly, if lying is bad, liars are bad. It's just that simple. Parents need to make their kids responsible for lying. But the mistake parents make is that they start to blame the kid for lying. It's considered immoral to lie. But when you look at your kid like he's a sneak, it's a slippery slope （滑坡谬误）that starts with “You lie” and ends up at “You're a bad person”.

    Kids know lying is forbidden. But they don't see it as hurtful. So a kid will say, “I know it's wrong that l eat a sugar snack when I'm not supposed to. But who does it hurt?” “I know it's wrong that I trade my dried fruit for a Twinkie. But it doesn't really hurt anybody. I can handle it. What's the big deal?” That's what the kid sees.

    So I think that parents have to assume that kids are going to tell them lies, because they're immature and they don't understand how hurtful these things are. They're all drawn to excitement, and they'll all have a tendency to distort（歪曲）the truth because they're kids.

    Street art is a very popular form of art that is spreading quickly all over the world. You can find it on building, sidewalks, street sings and trash cans from Tokyo to Paris, and from Moscow to Cape Town. Street art has become a global culture and even art museums and galleries are collecting the works of street artists. Even advertising companies also use street art in their ads due to its popularity.

    Street art started out very secretly because it's illegal to paint on public and private property without permission. People often have different opinions about street art. Some people think it is a crime with others think it's a new form of culture.

    Art experts claim that the movement began in New York in the 1960s. Young adults sprayed words and images on walls and trains. This colorful and energetic style of writing became known as graffiti(涂鸦). Graffiti art showed that young people wanted to rebel against society. They didn't want to accept rules, and they travelled around cities to create paintings that everyone could see. In many cases, they had trouble with the police and the local government.

    Many street corners in Paris show the works of Space Invader. A French artist uses small pieces of glass to make images of space creatures. He has been doing this for some years and the police have arrested him a few times. On his website, you can see many other places where he has created this form of art.

    Street artists do their work for some reasons. Some of them do not like the artists who make so much money in galleries and museums. They choose street art because it is closer to common people. Some artists try to express their political opinion in their works. They often want to protest against big firms and corporations. Others like to do things that are forbidden and hope they don't get caught.

    In today's world, the Internet has a big influence on street art. Artists can show their pictures to people all over the world. Many city residents, however, say that seeing a picture on the Internet is never as good as seeing it alive. The street art movement lives with the energy and life of a big city. There it will continue to change and grow.

    There's a new frontier in 3D printing that's beginning to come into focus: food. Recent development has made possible machines that print, cook, and serve foods on a mass scale. And the industry isn't stopping there.

    Food production

With a 3D printer, a cook can print complicated chocolate sculptures and beautiful pieces for decoration on a wedding cake. Not everybody can do that—it takes years of experience, but a printer makes it easy. A restaurant in Spain uses a Foodini to" re-create forms and pieces" of food that are" exactly the same,” freeing cooks to complete other tasks. In another restaurant, all of the dishes and desserts it serves are 3D-printed, rather than farm to table.

    Sustainability(可持续性)

    The global population is expected to grow to 9.6 billion by 2050, and some analysts estimate that food production will need to be raised by 50 percent to maintain current levels. Sustainability is becoming a necessity. 3D food printing could probably contribute to the solution. Some experts believe printers could use hydrocolloids( 水解胶体)from plentiful renewables like algae(藻类) and grass to replace the familiar ingredients(烹饪原 料). 3D printing can reduce fuel use and emissions. Grocery stores of the future might stock "food" that lasts years on end, freeing up shelf space and reducing transportation and storage requirements.

    Nutrition

    Future 3D food printers could make processed food healthier. Hod Lipson, a professor at Columbia University, said, "Food printing could allow consumers to print food with customized nutritional content, like vitamins. So instead of eating a piece of yesterday's bread from the supermarket, you'd eat something baked just for you on demand."

    Challenges

    Despite recent advancements in 3D food printing，the industry has many challenges to overcome. Currently, most ingredients must be changed to a paste( 糊状物)before a printer can use them, and the printing process is quite time-consuming, because ingredients interact with each other in very complex ways. On top of that, most of the 3D food printers now are restricted to dry ingredients, because meat and milk products may easily go bad. Some experts are doubtful about food printers, believing they are better suited for fast food restaurants than homes and high-end restaurants.

    Do you want to help others in Canada or out of the country? Here are some non-profit organizations in Calgary, Canada, through which you can do something for others.

    Calgary Reads

    Calgary Reads helps struggling readers in Grade One and Two twice a week. Trained adult volunteers carry out one-to-one reading teaching in the children's school during school hours. Volunteers are trained to use a proven effective lesson framework. Time is spent coaching readers while providing a strong role model in each child's life.

    Address: 105, 12th Ave SE | Calgary, AB | T2G 2H8

    Telephone: 1 403 777-8254

    Ukrainian Mission Canada

    This organization helps children in need in Ukraine, a country in eastern Europe. You can donate money or things to help one of the children in need.

    Address: 3806 44 Ave NE | Calgary, Alberta | T1Y5V8

    Telephone: 1 403 451-6991

    Calgary Doula Association

    This organization is formed to provide information about services related to birth and child care for the general public and worried professionals. Monthly meetings provide a networking opportunity and exchange of information for individuals interested in birth and child care, couples who are to be parents, and health care providers.

    Address: 124 Crest haven Place SW I Calgary, ABI T3B 5W4

    Telephone: 1 403 750-2033

    Rainbow Society of Alberta

    Rainbow Society of Alberta helps to fulfill wishes of Alberta children with long-term or life-threatening illnesses. Founded in Winnipeg in 1983, Rainbow Society was the first children's organization of its kind in Canada. Its Alberta chapter(分部) was created in 1986 by a handful of caring volunteers who saw need to bring such a strong support system to children in Alberta.

    Address: PO Box 1153, Station M I Calgary, AB

    Telephone: 1 403 252-3891

    British Museum Visitor Regulations

    Opening hours

    We open the Museum's galleries daily from 10：00 am until 17：30 pm. We keep selected galleries open until 20：30 pm on Fridays.

    The Museum's Great Court is open from 9:00 am until 18:00 pm; except on Fridays when it remains open until 20:30 pm.

    You may be asked by your staff to begin leaving up to ten minutes before closing time.

    The Museum is closed 24-26 December and 1 January.

    Admission

    We warmly welcome you on your visit to the Museum. In the interests of the security of all of our visitors we require you follow these regulations.

    Admission to the Museum is free, but we may charge for entry to some temporary exhibitions and events.

    Food and drink

    You aren't allowed to consume food and drink inside the Museum, except in places such as the restaurant and cafes or the forecourt. Families with children may use the Ford Centre for young visitors in the basement of the Museum's Great Court at weekends and during school holidays.

    Animals

    If you have a disability, you may be accompanied in the Museum by your guide, assistant or companion animal. You aren't allowed to bring animals into the Museum under any other circumstance.

    Film, photography and audio recording

    Except the place that are indicated by notices, you're permitted to use hand-held cameras (including mobile phones) with flash bulbs or flash units, and audio and film recording equipment not requiring a stand. You may use your photographs, film and audio recordings only for your own private and non-commercial purposes.