When other nine-year-old kids were playing games, she was working at a petrol station. When other teens were studying or going out, she struggled to find a place to sleep on the street. But she overcame these terrible setbacks to win a highly competitive scholarship and gain entry to Harvard University. And her amazing story has inspired a movie, "Homeless to Harvard: The Liz Murray Story" shown in late April.

    Liz Murray, a 22.year-old American girl, has been writing a real-life story of willpower and determination. Liz grew up in the shadow of two drug-addicted parents. There was never enough food or warm clothes in the house. Liz was the only member of the family who had a job. Her mother had AIDS and died when Liz was just l5 years old. The effect of that LOSS became a turning point in her life. Connecting the environment in which she had grown up with how her mother had died,she decided to do something about it.

    Liz went back to school. She threw herself into her studies, never telling her teachers that she was homeless. At night, she lived on the streets. ".What drove me to live on had something to do with understanding, by understanding that there was a whole other way of being. I had only experienced a small part of the society,'' she wrote in her book Breaking Night.

    She admitted that she used envy to drive herself on. She used the benefits that come easily to others, such as a safe living environment, to encourage herself that "next to nothing could hold me down".

    She finished high school in just two years and won a full scholarship to study at Harvard University. But Liz decided to leave her top university a couple of months earlier this year in order to take care of her father, who has also developed AIDS."I love my parents so much. They are drug addicts. But I never forget that they love me all the time."

    Liz wants moviegoers to come away with the idea that changing your life is "as simple as making a decision".

    From visiting museums to watching Changing the Guard, there are some amazing experiences for you to get while in London. Here we pick some of the best free activities in London.

    Changing the Guard

    For a display of British ceremony, watch Changing the Guard outside Buckingham Palace. This is where one member of Queen's Guards exchanges duty with the old guard. Both guards are dressed in traditional red uniform and bearskin hats, and the handover is accompanied by a Guards band. Guard Mounting takes place at 11:30 am. It is held daily from May to July, and on alternate(间隔的)dates throughout the rest of the year.

    Sir John Soane's Museum

    Sir John Soane was an architect. During his lifetime he collected some valuable antiquities(古董) from all four corners of the globe. They are now on display in Sir John Soane's Museum which gives a real insight into the life of this outstanding Victorian gentleman.

    Geffrye Museum

    A very unique experience, the Geffrye Museum, located in 18th century almshouses(救济院),gives a fascinating insight into the lives of the British middle classes from the 1600s to the present day. Explore a series of room sets, complete with furnishing and textiles(纺织品)from each period.

    Hogarth's House

    Hogarth was very famous and criticized 18th century society in his engravings(雕刻),such as A Harlot's Progress, A Rake's Progress and Marriage a-la-Mode. As the name suggests, Hogarth's House is where he lived before he died in 1764, and it's here that you'll find the most extensive collection of his paintings on public display.

    Bank of England Museum

    The splendid Bank of England Museum traces the history of the bank from its foundation by Royal Charter in 1694 to its role today as the country's central bank. There are many items you have never expected to see.

    For many people who live in cities, parks are an important landscape. They provide a place for people to relax and play sports, as well as a shelter from the often severe environment of a city. What people often overlook is that parks also provide considerable environmental benefits.

    One benefit of parks is that plants absorb carbon dioxide and give off oxygen. According to one study, an acre of trees can absorb the same amount of carbon dioxide that a typical car emits in 11,000 miles of driving. Parks also make cities cooler. Scientists have long noted what is called the Urban Heat Island Effect: building materials such as metal and concrete (混凝土) absorb much more of the sun's heat and release it much more quickly than trees and grass. Because city landscapes contain so much of these building materials, cities are usually warmer than surrounding rural areas. Parks and other green spaces help to lessen the Urban Heat Island Effect.

    Unfortunately, many cities cannot easily create more parks. However, cities could benefit from many of the positive effects of parks by encouraging citizens to create another type of green space: rooftop gardens. While most people would not think of starting a garden on their roof, human beings have been planting gardens on rooftops for thousands of years. Some rooftop gardens are simple container gardens that anyone can create with the investment (投资) of a few hundred dollars and a few hours of work.

    Rooftop gardens provide many of the same benefits as other urban parks and garden spaces, but without taking up the much-needed land. In the summer, rooftop gardens prevent buildings from absorbing heat from the sun, which can significantly reduce cooling bills. In the winter, gardens help control the heat that materials like brick and concrete release so quickly, leading to savings on heating bills. Rooftop vegetables and herb gardens can also provide fresh food for city settlers, making their diets healthier. Rooftop gardens are not only something everyone can enjoy but also a smart environmental investment.

    The Great Fire of London started in the very early hours of 2 September 1666. In four days it destroyed more than three-quarters of the old city, where most of the houses were wooden and close together. One hundred thousand people became homeless, but only a few lost their lives.

    The fire started on Sunday morning in the house of the King's baker(面包师)in Pudding Lane. The baker, with his wife and family, was able to get out through a window in the roof. A strong wind blew the fire from the bakery(面包房)into a small hotel next door. Then it spread quickly into Thames Street. That was the beginning.

    By eight o'clock three hundred houses were on fire. On Monday nearly a kilometer of the city was burning along the River Thames. Tuesday was the worst day. The fire destroyed many well-known buildings, old St Paul's and the Guildhall among them.

    Samuel Pepys, the famous writer, wrote about the fire. People threw their things into the river. Many poor people stayed in their houses until the last moment. Birds fell out of the air because of the heat.

    The fire stopped only when the King finally ordered people to destroy hundreds of buildings in the path of the fire. With nothing left to burn, the fire became weak and finally died out.

    After the fire, Christopher Wren, the architect(建筑师), wanted a city with wider streets and fine new houses of stone. In fact, the streets are still narrow; but he did build more than fifty churches, among them new St Paul's.

    The fire caused great pain and loss, but after it London was a better place: a city for the future and not just of the past.

    As years went by, I realized that one of the biggest problems of these adults are worry. A large majority of students were businessmen, executives, salesmen, engineers, accountants: a cross section of all the trades and professions—and most of them had problems! There were women in the classes — businesswomen and housewives. They, too, had problems! Clearly, what I needed was a textbook on how to conquer worry—so again I tried to find one.

    I went to New York's great public library at Fifth Avenue and Forty-second Street and discovered to my astonishment that this library had only twenty-two books listed under the title WORRY. I also noticed, to my amusement, that it had one hundred and eighty-nine books listed under WORMS. Almost nine times as many books about worms as about worry! Surprising, isn't it? Since worry is one of the biggest problems facing mankind, you would think, wouldn't you, that every high school and college would give a course on "How to Stop Worrying"?

    Yet, if there is even one course on that subject in any college in the land, I have never heard of it. No wonder David Seabury said in his book How to Worry Successfully: " We grow up with as little preparation for the pressures of experience as a bookworm asked to do a ballet (芭蕾舞)."

    The result? More than half of our hospital beds are occupied by people with nervous and emotional troubles.

    I looked over those twenty-two books on worry, reposing (靠) on the shelves of the New York Public Library. In addition, I purchased all the books on worry I could find; yet I couldn't discover even one that I could use as a textbook in my course for adults. So I decided to write one by myself.

    Things a Bright Girl Can Do by Sally Nicholls, UK.

    A hundred years ago, women had very few opportunities. Their role was to marry and raise children. Sally Nicholls, new novel is set in that time. Her main characters are three young London women. Evelyn is from a wealthy family, May is from a religious background, and Nell is a woman from a much poorer community. Though they are from, different backgrounds, they all become involved in the women's suffrage(选举权)movement during World War 1(1914-1918).

    Far From the Tree by Robin Benway, US

    The New York Times reviewer called the book a “brilliant exercise in empathy (感同身受) It's an unusual novel. It begins with a troubling event for the main character, Grace, a 16-year-old who loves chemistry and cross-country running. But when she finds that she has become pregnant, she chooses to give up her baby for adoption and has to deal with the pain that this causes her.

    The situation is __________for her because Grace was once an orphan(孤儿)herself. She feels that she cannot turn to her adoptive parents for comfort and advice. Instead, she turns to her blood siblings (兄弟姐妹). But Grace soon finds that they are as troubled as she is, and that they are also keeping things to themselves that hurt too much to speak about.

    Readers can expect to be moved by the characters and their situations, but also gain insight (理解)into modem family life in America.

    Turtles All the Way Down by John Green, US

    This novel has two principal teenage characters. Aza Holmes has a mental illness, which is a condition where a person does the same thing over and over, without being able to stop. Aza narrates (叙述)the novel, so we learn all about her from the inside out.

    The second main character is Daisy, Aza's friend. The two start an adventure to find a billionaire who has gone missing.

    “This is my first attempt to write directly about the kind of mental illness that has affected my life since childhood, so while the story is fictional (虚构的)，it is also quite personal, ” said Green in a statement.