If you make a list of the world's top ten most challenging jobs,chances are that being a teacher will not make the cut.But think about the discouraging task millions of educators face each day as they try to shape a group of often bad-tempered,wild kids into intelligent,well-rounder individuals.That surely has to be the toughest job in the world, especially given that there is no promotion or bonus awaiting them even if they are wildly successful!

    What if there all-important individuals that we often take for granted（想当然）disappear from our lives?That was what Project Ed and Participant Media's Teach campaign asked filmmakers of all ages to imagine in their recently-held competition.Entitled "A World Without Teachers",its purpose was to inspire more young people to become teachers.However,the 62 amazing video submissions also serve as a reminder of how horrible things would be if we didn't have these selfless individuals guiding us through life.What was interesting is that even the youngest participants did not appear to be happy at the idea of not having anybody telling them what to do.

    High-school student Savannah Wakefield reflected if art as we know it today would have been different without teachers.Would Monet have discovered his talent for impressionism?Los Angeles-based Miles Horst,who won the 1000 USD prize for the best adult submission imagines a world where teachers are replaced by a “brain box” in his fun lively entry.

    Youth category winner Marina Barham's video represents a fact we all know but often forget.Teachers don't just teach,they inspire something that no electronic device,no matter how smart,can do!So the next time you think your teacher is being "mean" for trying to channel you in the right direction,imagine a life without him/her.We have a feeling it will not appear as rosy!

    In recent years, remote-sensing technologies have become ordinary in archaeological fieldwork（实地考察）. Such tools for excavation produce rapid results and cause no damage to archaeological sites. They are highly accurate and usually cost effective. Here are three of the modern archaeologist's most trusted remote-sensing tools.

    As the simplest of the remote-sensing techniques that archaeologists use, aerial（空中的）photography allows experts to see aspects of a site that may be invisible from the ground, such as the way in which something such as a town, garden, or building is arranged and traces of old walls and roads. The technique involves taking photographs with conventional cameras and filming from airplanes, helicopters, hot-air balloons, or other airborne vehicles.

    Geographic Information System (GIS) contains a large amount of field data archaeologists typically collect in and around excavation sites. While in the field, archaeologists use GIS on their computers to make and manage detailed site maps, and they can combine the results of remote-sensing tests with maps of the region created with the aid of Global Positioning System. Resulting maps sort the most archeologically promising areas and display these sites three-dimensionally.

    Ranging in size from small handled models that one places against the ground to larger ones that one across a site, Ground Penetrating Radar (GPR) devices use low-power radio waves to detect changes underground. Unlike traditional radar, which broadcasts into the air and uses a dish to focus the returned waves, GPR uses a small but sensitive receiver placed directly against the ground. Depending on their needs, archaeologists can adjust radio frequencies upward for shallow sites or downward for deeper areas, though GPR devices produce the greatest definition（清晰度）when reading depths of three feet or less.

    CLASSIC TOURS—COACH BREAK INFORMATION

    Luggage

    We ask you to keep a medium-sized suitcase per person, but a small holdall can also be taken onto the coach.

    Seats

    Requests for particular seats can be made on most coach breaks (巴士旅游) when booking, but since seats are booked on a first come, first serve basic, early booking is advisable. When bookings are made with us, you will be offered the best seats that are available on the coach at that time.

    Travel Documents

    When you have paid your deposit（订金）, we will send you all the necessary documents, so that you can receive them in good time before the coach break leaving date. Certain documents, for example, air or boat tickets, may have to be reserved and your guide will then give them to you during the break.

    Special Diets

    If you require a special diet, you must inform us at the time of booking with a copy of the diet. This will be told to the hotels on your coach break. The hotels for certain coach breaks are tourist class and they may not have the equipment to deal with special diets. Any extra costs must be paid to the hotel by yourself before leaving the hotel.

    Accommodation

    On any coach break there are only a limited number of single rooms. When a single room is available, it may be subject to an extra charge and this will be shown on the brochure page.

    Entertainment

    Some of our hotels arrange extra entertainment which could include music, dancing, films, etc. The nature and frequency of the entertainment presented is decided by the hotel and therefore not guaranteed and could be withdrawn if there is a lack of demand or insufficient numbers in the hotel.

    Many people prefer eating out instead of cooking at home. A change appears to be taking place, though, and millennials are leading the way. According to one survey, more young people are starting to cook at home for three basic reasons: They can save money, eat healthy and waste less food.

    Popular TV chefs are also getting millennials excited about learning some basic cooking skills. Many millennials view cooking as a form of entertainment and self-expression. They proudly post pictures of their cooking creations on Facebook or Instagram, and invite friends over to share the cooking experience.

    Many millennials have also found ways to avoid wasting food. After roasting a chicken, they put the leftover bones in their freezer instead of the garbage can. Later, they use the bones to make chicken stock which is an important ingredient in many dishes.

    They also hate throwing out fruit that's too old. To avoid that situation, they bake ripe fruit like berries and bananas for 15 minutes at 175 degrees C. Then they freeze it overnight. After that, they place the fruit in plastic bags and store it their freezer for later use.

    Now any millennials only eat at restaurants that have excellent food-waste policies. These servants use every part of the vegetables they buy, including their stems and roots, in dishes. They also use beef, chicken and pork bones to make their own stock.

    Millennials also reduce food waste by only buying what they require. Before going to a market, they write down what they need and don't buy anything else. They say they won't purchase more food than they can consume.

Famous Modern Chinese Buildings

    Beijing International Airport

    The first place most visitors see when they arrive in China is Beijing International Airport. The airport was constructed in the 1950s. It has an indoor garden, a children's playground, and over 70 food businesses in Terminal 3 alone.

Shanghai World Financial Center

    Completed in 2008, SWFC took over 10 years to complete due to financial shortages and construction delays. Since its completion, it has won countless architectural awards.

    Tourists are welcome at SWFC's viewing platform, which at 474 meters above ground is the world's highest closed viewing platform.

    The Water Cube

    It was constructed for use during the Beijing 2008 Summer Olympics. Now visitors can express surprise at the architecture of the building. They can enjoy the indoor atmosphere as well.

    Among the offerings of the Water Cube are a restaurant and bar, a shopping area, and Water World, a family water park

    The Bird's Nest, Beijing

    It was designed mainly for the 2008 Summer Olympics. It can hold up to 80,000 people and has been used for a winter theme park. Nowadays, its main income is as a tourist attraction. It draws more than 20,000 tourists every day.

    National Center for the Performing Arts

    It was completed in 2007. The building is surrounded by a man-made lake, requiring guests to enter via an underground hallway. It is home to an Opera Hall, Music Hall, and Theater.

    For Kim Duffy, sending away her teenage daughter was the best hope for saving the girl's life.

    Corinne, then 17, had been struggling with bulimia (贪食症) and anorexia (厌食症) for more than five years. Duffy and her husband, Terry, found a residential facility in Virginia, and Corinne signed on for a two-month stay in the summer of 2009.

    Today, Corinne's healthy and pursuing a master's degree in Colorado. She and her parents believe the holistic (整体) approach and individualized focus were key to her recovery. And they know they had access to unique resources. "We were fortunate," says Duffy. "We could pay for everything."

    But many can't. According to a report released in November 2014 by the Standing Committee on the Status of Women, between 600, 000 and one million Canadians suffer from an eating disorder. Public in patient programs often won't admit patients until they're in life-threatening condition. Private clinics often have a long waitlists and high costs-at Homewood, in Guelph, Ont., a room is $ 305 to $360 per day.

    The Duffs' struggle led then to connect other families with the quality of care they received in the United Sates. In late 2013, hey founded the WaterStone Clinic, a private eating disorder center in Toronto.

    Since the facility opened, 170 clients have received treatment. They take yoga, do art therapy and participate in meal preparation, building real-life skills with a support team. Programs run weekdays from 8 a. m. to 2 p. m., and notably, so far WaterStone has no waiting list.

    But this approach is costly: approximately $650 per day. Realizing that the price tag puts WaterStone out of reach for many, the Duffys created the WaterStone Foundation-a charity that provides aid to patients who can't afford treatment the following year. Candidates are assessed by two committees that make a decision based on clinical and financial need. Since 2014, the foundation has helped 100 people.

    Duffy also wants to change the public system. In June of this year, the foundation awarded ＄170, 000 to four Ontario hopitals offering creative treatment to eating disorder patients. "Yes, people need private treatment," she says, "but it's important to help out on a broader scale, too."