Philadelphia, Pennsylvania w America's fifth largest city. Once a major American colonial city, it is the home of America's first library, its first hospital, and its first zoo. Now it is also the first US city to be named a World Heritage City. On November 6, 2015. Philadelphia joined more than 260 other cities that have been recognized for their influence on the world. These cities include Paris, France Florence, Italy and Cairo Egypt.

    "Today marks the start of a new and exciting chapter in the history of Philadelphia" remarked Philadelphia Mayor Michael Nutter when the announcement was made. “As a World Heritage City. Philadelphia is being officially recognized on the global stage for its wealth of contributions to the world. ”

    To be named a World Heritage City, a city be home to a UNESCO World Heritage site are selected for their universal value and significance. For Philadelphia, the site is Independence Hall.

    Independence Hall is where two of the most important documents, approved in US history - the Declaration of Independence and the US Constitution-were adopted. The Declaration of Independence, approved on July 4 1776, united the 13 former British colonies and declared them independent from British rule. The US constitution, signed in 1787, established the American democratic system of government. Democracy is a system of government in which the people elect their leaders. The Constitution later spelled out basic freedoms American citizens have.

    Philadelphia Deputy Mayor Alan Greenberger says the city's selection as a World Heritage City also reflects ta its educational, cultural, and economic achievements. The city is home to dozens of colleges and universities, and many museums, such as the Philadelphia Museum of Art.“Philadelphia has rightfully earned its place as one of the greatest cities in the world.” Greenberger says.

    Eco-friendly Vauban, lied in the southwest part of Germany, has everything－tree-lined streets, perfect houses－but it's missing one urban feature of the last 100 years or so: the car. And Vauban residents(居民) don't mind one bit. Vauban doesn't ban cars entirely. Rather, it just tries to reduce the use of cars by creating “parking-free” and “car-free” living. In Vauban, parking spots are a no-no private property(私人财产). Cars can only be parked in public parking lots, so living without a car saves residents the cost of parking in the public lot. Cars also are prevented from using certain roads and must stick to strict speed limits. With these limitations, fewer than 20 percent of residents own cars. Without cars, bikes are almost religion in this small town. Kids pick them up even before they can ride one. Vauban is about much more than just using two wheels instead of four. In Vauban , residents ride bikes and even receive money from the electric company for selling electricity back to the power grid (电网系统). It's an environmentally-friendly city of the future, with organically grown food, renewable energy, and carbon-neutral homes. And now, with a population of 5,500, it's attracting attention from around the world. Can an eco-friendly city like Vauban be a model for Americans to stop their over-reliance on the cars?

    Sometimes when I watch a news report what's in the back of my mind is what isn't being reported or stressed. While this eco-friendly city is inspiring in that it shows residents getting exercise and fresh air through the majority use of bicycles, as well as good old fashioned walking, common sense would tell you that even for a place like Vauban, Germany, it owes its existence to the cars.

    Do you think that bicycles were able to transport all the construction materials that were needed to build and maintain the eco-friendly homes and businesses in Vauban? It took cars to help build this utopia. It's one of the paradoxes of life that sometimes in order to get away from relying on something like the car, you actually have to rely on that very thing at the beginning and into the foreseeable future to some degree.

    I myself haven't owned a car for more than 14 years, and mostly get around town running, walking, or using public transportation. There are times I wish I had one, since it would make many things easier, but overall I'm glad not to have to deal with the headaches of owning a car, which caused me to get rid of it in the first place. And all the walking and running has helped to keep me fit and healthy.

    To get even close to being like eco-friendly Vauban, Americans will need to absolutely change the way they live. Commuting(乘车上下班) patterns will have to change, public transportation will have to be invested in, and so on. And though ending our love affair with the car will be impossible during my lifetime, we may at least start to see more Vauban-like areas in the USA.

    We can hope that Americans will consider using their feet more to get around, cutting down on pollution, and giving themselves some more exercise.

    Mark Elliot Zuckerberg was born on May the 14th, 1984. He is the creator of the social media site Facebook. He was a star student at school, winning prizes in astronomy, maths and physics. He was also good at Classical studies. He studied Psychology and Computer Science at Harvard University, which is where he created Facebook. His invention led to his becoming Time magazine's Person Of the Year for 2010.

    Zuckerberg excelled in everything he did in his youth. He was captain of the school fencing team, spoke many languages and was a highly skilled computer programmer. While other kids played computer games, he designed them. He created his first network while in high school to connect all of the computers - in his father's dental surgery. He also built a media player which attracted the interest of Microsoft and AOL.

    Zuckerberg started at Harvard in September 2002. In his first year, he created Facemash, a Facebook predecessor (前身), which let students select the college's best looking people from a selection of photos.

    He launched Facebook from his Harvard room in February 2004. It was the start of a rollercoaster ride that would connect half a billion people worldwide and make him the world's youngest billionaire.

    Mark Zuckerberg is now one of the most influential people on the planet. He has dined with the president of the USA and regularly attends global economic summits and technology conferences. He stated: "The thing I really care about is the mission, making the world open." In 2010, Zuckerberg signed a promise, in which he promised to donate at least half of his life wealth to charity.

Summer Programs for Teens

    University of Maryland: TERP Young Scholars

    This program is the perfect summer camp for academically talented teenagers who want to pursue academic interests, explore career opportunities, and discover college life at the University of Maryland.

    During three weeks of intellectual exploration, teens can study with students who share similar interests, and communicate with some of the university's best teachers. Upon successful completion, students can earn three college credits.

    Carpe Diem: The University-bound Adventure

    Carpe Diem supports both American and international students in applying to a university by providing private consultation. This 2-week experience also includes tours of famous East Const universities Students will also have the opportunity to build their resumes (简历) by working with writing experts.

    Great Books Summer Program

    This is a lively, warm and welcoming summer camp community of outstanding teens, who love literature and ideas In the past eleven years, it has gathered middle and high school students from across the world to read selections from the greatest works of literature, experience heated discussions and enjoy summer camp fun with other literary-minded students. Participants can gain confidence in their ability to read a text closely and express their ideas clearly both verbally and in writing.

    Zeal Travel

    We offer our teens two week and three- week long trips to Hawaii, Alaska, Australia and Spain. All trips include 15-25 hours of community service activities.

    Depending on your trip of choice, you'll be helping Hawaiians protect their forest ecosystem, caring for dogs in Spain, working with Habitat for Humanity, and much more. Every trip also includes exciting outdoor activities like surfing, driving, ice-climbing, hiking and more. The possibilities are endless and there is a zeal trip for every interest.

    More and more people like bicycling and it is no surprise. It is fun, healthy and good for the environment.

    Maybe that's why there are 1.4 billion bicycles and only 400 million cars on roads worldwide today. Bikes can take you almost anywhere, and there is no oil cost! Get on a bicycle and ride around your neighborhood. You may discover something new all around you. Stopping and getting off a bike is easier than stopping and getting out of your car. You can bike to work and benefit(受益)from the enjoyable without polluting the environment. You don't even have to ride all the way.

    Folding(折叠) bikes work well for people who ride the train. Just fold the bike and take it with you. You can do the same on an airplane. A folding bike can be packed in a suitcase. You can also take a common bike with you when you fly. But be sure to look for information by getting on airline websites. Not all airlines are bicycle-friendly to travelers.

    Health benefits of bicycling

    It helps to prevent heart diseases

    Bicycling helps to control your weight

    A 15-minute bike ride to and from work three times a week burns off five kilos of fat in a year.

    Bicycling can improve your mood.

    Exercise like bicycling has been shown to make people feel better, more relaxed and self-confident.

It was the middle of winter some 30 years ago. I was a young father with three little mouths to 1 . My college education, however, didn't help me to 2 a well-paid job. I was working in a woodcutting business for just above the 3 wage. Working outdoors for 8 hours a day had caused my4 to split (裂开) and bleed at their tips in the cold, dry air. 

That day at work was harder than normal. We 5 workers. Worse still, the machines kept breaking down. When the day finally ended, I took off the gloves and 6 my painful hands. The splits were 7 than ever and I had bled through the band-aids again. I tried to 8 my back but it hurt badly. I had never felt that tired and 9 before, wondering why life was so tough and how long I could keep doing this. 

I tried to 10 a smile as I got home. My daughter ran up to me merrily, yelled "Daddy!", and 11 her little arms around my neck. My heart exploded with 12 . My aches and tiredness disappeared into her13 . And the joy in my heart 14 the depression away. At that moment I knew I could continue on and that things would get better. 

We all have 15 fingers and band-aid days in our lives here. But with love we can make it through them all.