Getting less sleep has become a bad habit for most American kids. According to a new survey(调查) by the National Sleep Foundation, 51% of kids aged 10 to 18 go to bed at 10 pm or later on school nights, even though they have to get up early. Last year the Foundation reported that nearly 60% of 7- to 12-year-olds said they felt tired during the day, and 15% said they had fallen asleep at school.

    How much sleep you need depends a lot on your age. Babies need a lot of rest: most of them sleep about 18 hours a day! Adults need about eight hours. For most school-age children, ten hours is ideal(理想的). But the new National Sleep Foundation survey found that 35% of 10- to 12-year-olds get only seven or eight hours. And guess what almost half of the surveyed kids said they do before bedtime? Watch TV.

“More children are going to bed with TVs on, and there are more opportunities(机会) to stay awake, with more homework, the Internet and the phone,” says Dr. Mary Carskadon, a sleep researcher at Brown University Medical School. She says these activities at bedtime can get kids all excited and make it hard for them to calm down and sleep. Other experts say part of the problem is chemical. Changing levels of body chemicals called hormones not only make teenagers' bodies develop adult characteristics, but also make it hard for teenagers to fall asleep before 11 pm.

Because sleepiness is such a problem for teenagers, some school districts have decided to start high school classes later than they used to. Three years ago, schools in Edina, Minnesota, changed the start time from 7:25 am to 8:30 am. Students, parents and teachers are pleased with the results.

    A student is learning to speak British English. He wonders: Can I communicate with Americans? Can they understand me? Learners of English often ask: What are the differences between British and American English? How important are these differences?

    Certainly there are some differences between British and American English. There are a few differences in grammar. For example, speakers of British English say “in hospital” and “Have you a pen?” Americans say “in the hospital!” and “Do you have a pen?” Pronunciation is sometimes different. Americans usually sound theirs in words like “bird” and “hurt”. Speakers of British English do not sound theirs in these words. There are differences between British and American English in spelling and vocabulary. For example, “colour” and “honour” are British, “color” and honor” are American.

    These differences in grammar, pronunciation, spelling and vocabulary are not important. However, for the most part, British and American English are the same language.

    I don't think I can recall a time when I wasn't aware of the beauty of the ocean. Growing up in Australia, I had the good fortune of having the sea at my side. The first time I went to Halfmoon Bay, I suddenly had the feeling of not being able to feel the ground with my feet anymore.

    For my 10th birthday, my sister and I were taken out to the Great Barrier Reef. There were fish in different colors, caves and layers of coral. They made such an impression on me. When I learned that only 1 percent of Australian's Coral Sea was protected, I was shocked. Australian marine life is particularly important because the reefs have more marine species than any other country on earth. But sadly, only 45 percent of the world's reefs are considered healthy.

    This statistic is depressing, so it's important for us to do everything to protect them. The hope that the Coral Sea remains a complete eco-system has led me to take action. I've become involved with the Protect Our Coral Sea activity, which aims to create the largest marine park in the world. It would serve as a place where the ocean's species will all have a safe place forever.

    Together, Angus and I created a little video and we hope it will inspire people to be a part of the movement. Angus also shares many beautiful childhood memories of the ocean as a young boy, who grew up sailing, admiring the beauty of the ocean, and trying to find the secrets of ocean species.

    Although small business training and credit programs have become more common throughout the world, little attention has been paid to the need of young people, and even less to the children living on the street or in difficult condition.

    Over the past nine years, Street Kids International (S.K.I.) has been working with partner organizations in Africa, Latin America and India to support the economic lives of street children and develop opportunities for street children to earn income.

    The S.K.I. Bicycle Courier Service first started in the Sudan. Street children who took part in it were given bicycles, which they used to deliver parcels and messages. A similar program was taken up in Bangalore, India. The Shoe Shine Collective was a program with the Y.W.C.A. in the Dominican Republic. The children in this project were lent money to buy shoe shine boxes. They were also given a safe place to store their equipment, and facilities for individual savings plans. The Youth Skills Enterprise Initiative in Zambia is a program with the Red Cross Society and the Y.W.C.A. Street youths are supported to start their own small business through business training, life skills training and access to credit.

    During the program, The S.K.I. and partner organizations have drawn lessons from the past: First of all, being a businessman is not for everyone, nor for every street child. And it is important for all loans to be linked to training programs that include the development of basic business and life skills. Secondly, small loans are provided firstly for buying fixed assets such as bicycles, shoe shine kits and basic building materials for a market stall. As the children gain experience, they can be given more loan amounts. And all S.K.L. programs have charged interest on the loans. Generally the rates have been lower than bank rates. Most importantly, it is believed that credit must be given with other types of support that help the young develop key life skills as well as productive businesses.

No matter which place you decide to visit in Spain, you'll find a beautiful beach waiting just for you. These popular beaches can meet the needs of people from all walks of life.

Cala de Algaiarens, Minorea

With soft golden sand and clear water, this beach is perfect for snorkeling (浅滩潜水) and visiting underwater caves. The beach belongs to a local man, so tourists have to pay a small entry fee. The waves here can sometimes be huge so the beach isn't safe for kids.

Cala Tarida, Ibiza

Besides the big music festivals and the exciting nightlife, Ibiza is home to some of the most beautiful beaches; one of them is Cala Tarida. Just relax on the white sand or go swimming in clear water. It is an ideal location to spend a sunny day if you are in Ibiza.

Beach of La Concha, San Sebastian

It has been called the best city beach not just in Spain, but also in Europe. It's so popular during the holidays that tourists have to struggle to get some space. Even though the beach is a 10- minute walk from the city, the white sand and the amzing clear waters do make the city a new world.

Sotavento, Canary Islands

As an ideal choice for travelers, Sotavento offers 17 miles of white sandy beach. It is blessed with strong water and winds, making it a paradise (天堂) for surfers and kite flyers. The beach also hosts the popular World Kite Surf Championship every August.

Must-read New Fiction Books

We all have a few tried-and-true fiction favorites, but there's something special about a brand-new, hot-off-the-press novel. Whether it's your favorite author's new release or a new writer's first work, great fiction books make the perfect escape from ordinary life. That's why we've rounded up a list of the best new books released in February.

Age of Gold by Jerry Lapoor

Jerry Lapoor's latest action-packed novel unfolds like a crazy movie. This thriller begins when a wealthy man's car gets out of control. But when the dust settles, the rich man is nowhere to be found. How and to where does he disappear? With an exciting plot that will carry you from old-money houses to small agricultural villages, Age of Cold will take you on an unforgettable ride across a vast land.

City Under One Sky by Rachel Young

In the book, Young presents a crime story set in a small town. Detective Sara Kennedy has been sent to investigate a case. But soon after arrival, Sara gets snowed in with the 205 townsfolk living in the same apartment building. Who is hiding the key to the crime? And is there anyone she can truly trust? The appealing story, strange but distinctive characters and unexpected plot are just a few of the reasons why City Under One Sky gains its popularity.

Lady by Jess George

Lady is an irresistible fiction from Jess George. The story of Mary's fresh start at adulthood is shot through with themes of family, race and discrimination, womanhood and the immigrant reality of feeling torn between cultures. Though struggling with life in London as an African, Mary jumps at every chance to stand on her own feet.