John keeps a record of new words and expressions in English. He usually writes them in a note-book. Then, later in the day, he asks his teacher about them. “Mrs. Thomas, these expressions are new to me. ‘She's blue today.'， ‘You're yellow', ‘A little white lie', ‘She has green fingers'.” After looking at the note-book, Mrs. Thomas says, “In everyday English, John，‘blue' sometimes means sad. ‘Yellow' means afraid. A person with ‘green fingers' grows plants successfully. And ‘a white lie' is not a bad lie.” “I don't understand. Please give me an example.” “ For example, I offer you some cake. The truth is that you don't like my cake. You don't say that. Instead, you say, ‘No, thanks, I'm not hungry.' That's a white lie.” John says, “I see , thanks for the explanation!”

    Doing voluntary work abroad is a great way for you to learn about service learning and know better about the world and different cultures. Visit our websites for further details.

Global Vision International

    Experience everything in our adventure when you join us in a team of international volunteers under 18. Assist with the projects that will benefit poor children's development and education. Discover the area's splendid beaches, explore beautiful jungles and immerse(沉浸)yourself in the friendly local culture.

    Cost: $2,990             Tel: 1-888-653-6028       Email: info@guiworld.com

    Website: www. Volunteer and Adventure Experience in Costa Rica. Com

Broadreach Summer Adventures

    Since 2993, Broadreach has taken over 12,000 students on their worldwide summer adventure volunteer programs for middle school, high school students. Their 75+ program offerings include marine biology, sailing, medicine, culture, arts, community service and leadership adventures. Programs are located in 40 +countries.

    Cost: Staring at $3,880          Tel: 919-256-8200

   Email: info@ gobroadreahc. Com   Website: www. gobroadreach. com

Cross-Cultural Solutions

    CCS teen summer service trips are for high school students aged 15-17. The High School Volunteer Abroad program offers you an awesome opportunity to volunteer side-by-side with local people. You can also meet new friends on a teens-only group volunteering project in Costa Rica, India, Peru, Ghana, and so on. You'll participate in many cultural activities during the week and on weekends.

    Cost: Contact us for pricing and availability

    Tel: 1-800-380-4777

    Email: info@crossculturalsolutions.org

    Website: www. crossculturalsolutions. Org
United Planet

    United Planet offers volunteer abroad programs in four destinations for those under 18. Volunteers may work in nursing home, Community Service Stations or in environmental conservation projects. Destinations include Romania, Peru, Ecuador and Chile. Candidates 16 years and older can apply.

     Cost: According to the length of your stay   Tel: 617-267-7763

    Email: quest@unitedplanet. org            Website: www. unitedplanet.org

    Washington, D.C. Bicycle Tours

    Cherry Blossom Bike Tour in Washington, D.C.

    Duration: 3 hours

    This small group bike tour is a fantastic way to see a world-famous cherry trees with beautiful flowers of Washington, D.C. Your guide will provide a history lesson about the trees and the famous monuments where they blossom. Reserve your spot before availability — the cherry blossoms—disappear!

    Washington Capital Monuments Bicycle Tour

    Duration:3 hours (4 miles)

    Join a guided bike tour and view some of the most popular monuments in Washington, D.C. Explore the monuments and memorials on the National Mall as your guide shares unique facts and history at each stop. Guided tour includes bike, helmet, cookies and bottled water.

Capital City Bike Tour In Washington, D.C.

    Duration:3 hours

    Morning or Afternoon, this bike tour is the perfect tour for D. C. newcomers and locals looking to experience Washington, D.C. in a healthy way with minimum effort. Knowledgeable guides will entertain you with the most, interesting stories about Presidents, Congress, memorials, and parks. Comfortable bikes and a smooth tour route(路线）make cycling between the sites fun and relaxing.

Washington Capital Sites at Night Bicycle Tour

    Duration:3 hours (7 miles)

    Join a small group bike tour for an evening of exploration in the heart of Washington, D.C. Get up close to the monuments and memorials as your bike the sites of Capitol Hill and the National Mall. Frequent stops are made for photo taking as your guide offers unique facts and history. Tour includes bike, helmet, and bottled water. All riders are equipped with reflective vests and safety lights.

    Pigeons may only have a brain the size of a thimble (顶针), but it appears that pigeons can categorize and name objects in the same way human children learn new words.

    A new study from the University of Iowa has shown that the birds are capable of learning to categorize 128 different photographs into 16 basic categories.

    Scientists taught three pigeons to sort out different kinds of dogs or types of shoes, for example by using a particular symbol in exchange for a reward. When they were shown black and white pictures of previously unseen dogs or shoes, the birds were able to correctly match these with the corresponding symbols.

    The scientists behind the project say this is a similar approach taken by young children when they are first learning words for objects. However, the researchers said it took their birds around 40 days to perfect the task of learning just 16 categories.

    Professor Edward Wasserman, who led the work, said: "Our birds' rate of learning appears to have been quite slow. Would children learn faster than pigeons? Almost certainly. However, our pigeons came to the experiment with no background knowledge at all. Thus, the more relevant comparison group may be newborn babies, who indeed take 6–9 months to learn their first words."

    Writing in the journal Cognition, the researchers said their experiment was a very simple mirror of the way children are taught words — by their parents pointing to pictures and asking them to name the object.

    Pigeons are known to be smarter than many birds. Professor Bob McMurray, who also took part in the study, said the results showed that human learning is not as unique as was previously believed.

    He said: "Children are facing a huge task of learning thousands of words without a lot of background knowledge to go on. For a long time, people thought that such learning is special to humans. What this research shows is that the ways in which children solve this huge problem may be shared with many species.

    You probably know who Marie Curie was, but you may not have heard of Rachel Carson. Of the outstanding ladies listed below, who do you think was the most important woman of the past 100 years?

    Jane Addams (1860-1935)

    Anyone who has ever been helped by a social worker has Jane Addams to thank. Addams helped the poor and worked for peace. She encouraged a sense of community(社区) by creating shelters and promoting education and services for people in need. In 1931, Addams became the first American women to win the Nobel Peace Prize.

    Rachel Carson (1907-1964)

    If it weren't for Rachel Carson, the environmental movement might not exist today. Her popular 1962 book Silent Spring raised awareness of the dangers of pollution and the harmful effects of chemicals on humans and on the world's lakes and oceans.

    Sandra Day O'Connor (1930-present)

    When Sandra Day O'Connor finished third in her class at Stanford Law School in 1952, she could not find work at a law firm because she was a woman. She became an Arizona State Senator(参议员) and in 1981, the first woman to join the US Supreme Court（高等法院）. O'Connor gave the deciding vote in many important cases during her 24 years on the top court.

    Rosa Parks (1913-2005)

    On December 1, 1955, in Montgomery, Alabama, Rosa Parks would not give up her seat to a white passenger. Her simple act landed Parks in prison. But it also set off the Montgomery bus boycott. (抵制行动) It lasted for more than a year, and kicked off the civil-rights movements. "the only tired I was, was tired of giving in." said Parks.

    Camping is a good way to spend time along with your kids and to show them how wonderful nature can be. Through camping, children can discover new things about nature, such as flowers, birds, and other small animals. Camping gives kids time to get away from all the electronics (电子) of today's culture. So it is necessary to plan exciting and enjoyable family camping trips with your children while they are young.

    When planning your family camping trip, consider the activities your kids like: games, hiking, swimming, boating, bicycling, etc. Select a camping place that has some of the activities the kids are interested in. Meal planning is an important part of your camping trip. Plan the meals together, and kids love to choose what they want to eat.

    When starting to pack for your trip, let the kids pack their own items (物品) . Each person should have his/her own sleeping bag with a luggage (行李) bag to put it in. Personal items should be packed with their sleeping bags. Encourage the kids to put their items in a certain place and always return it when they have finished using it.

    When you have arrived at your campsite, make all the camping activities a family activity, which will help children to realize how important team-work is. Everyone can have his/her own job sitting up the campsite. Meal time can be a fun time. So let the older ones help with the cooking on your outdoor camping stove while the younger ones get the picnic table ready.