The kids in this village wear dirty, ragged clothes. They sleep beside cows and sheep in huts made of sticks and mud. They have no school. Yet they all can chant the English alphabet, and some can make words.

    The key to their success: 20 tablet computers(平板电脑) dropped off in their Ethiopian village in February by a U.S. group called One Laptop Per Child.

    The goal is to find out whether kids using today's new technology can teach themselves to read in places where no schools or teachers exist. The Massachusetts Institute of Technology researchers analyzing the project data say they're already amazed. “What I think has already happened is that the kids have already learned more than they would have in one year of kindergarten,” said Matt Keller, who runs the Ethiopia program.

    The fastest learner—and the first to turn on one of the tablets—is 8-year-old Kelbesa Negusse. The device's camera was disabled to save memory, yet within weeks Kelbesa had figured out its workings and made the camera work. He called himself a lion, a marker of accomplishment in Ethiopia.

With his tablet, Kelbasa rearranged the letters HSROE into one of the many English animal names he knows. Then he spelled words on his own. “Seven months ago he didn't know any English. That's unbelievable,” said Keller.

The project aims to get kids to a stage called “deep reading,” where they can read to learn. It won't be in Amharic, Ethiopia's first language, but in English, which is widely seen as the ticket to higher paying jobs.

    Gesture is the use of such movements to express thought, emotion, etc. A gesture can be many things. Slamming a book shut shows anger and frustration. Opening a door lor someone shows kindness. Gestures go much beyond small actions.

    My friend once told me a story in high school. One day he met a girl who was on the girls' basketball team. He said hello, gave her a hard handshake and wished her good luck as she had a game later. He came to find out he saved that girl's life. She had planned on committing suicide and by shaking her hand and saying good luck, he made her realize someone really cared about her. I'm not saying all actions are going to change someone else's life that much, but it may make their day better.

    Gestures can be negative too. In my senior year of high school, a guy on my football team was late and was walking down the field to practice. Everyone on the team knows our coach hates it when people are late and walk on the field. He was walking in as if he owned the place and had no care of what his teammates were thinking. His body language had never been good. The other players on the team had never liked him because of his body language.

    Gestures can often say more than a person wants. One day I was mad at my parents for some pointless reason. All day I stayed downstairs. When one of them walked by, I would just stare at the TV or my phone and hope they wouldn't try to start a conversation. When they tried to talk to me, I would give one-word answers. Sitting on the couch and watching TV by myself all day was not my intent but that was what my gestures told my parents.

    One simple gesture can change a person's thoughts, day or maybe even save their lives. If everyone made a nice gesture to someone else every day, our school, town, and world would become a better place. One single act of random kindness at a time or a kind gesture can change the world.

    The World Bank is warning that the West Africa Ebola outbreak could seriously harm the economies (经济)of Guinea, Liberia and Sierra Leone unless action is taken quickly. World Bank President Jim Yong Kim spoke to reporters recently to discuss the effects of the Ebola spread.

    "Our findings show that if the virus(病毒)continues to spread, the economic cost to these countries could grow eight times by 2015. This would be a big catastrophe to their already weak economies," said Kim.

    Mr. Kim says, "saving lives and preventing new spread" is most important. The bank has given $117-million for an "immediate help." The World Bank President says the SARS outbreak between 2002 and 2004 showed how a disease could damage economies. 800 people died from SARS and the economic losses were up to $40-billion.

    Mr. Kim says SARS and the H1N1 outbreak of 2009 taught that fear and avoidance resulted in about 90-percent of the economic losses. That means the disease is causing two levels of economic damage.

    "There are two kinds of contagion(传染). One is connected with the virus itself and the second is connected with the spread of fear about the virus," said Kim.

    The World Bank thinks the losses to the economies of Liberia, Sierra Leone and Guinea will be big .Mr. Kim says losses could be about $97-million at the moment.

    Mr. Kim says fast action is necessary. He says getting the disease under control is still far away. That is because there are not enough health care workers in the affected areas. The World Bank President says the most important measure is to act quickly in order to limit economic losses.

    Scientists say they discovered an earth­like planet orbiting the star closest to our planet other than the sun. It is the closest planet ever found outside our solar system that could support life as we know it. This planet is just 4.2 light years away from us. It is so close that space scientists have compared it to a next door neighbor. They say it could be reached by an unmanned spacecraft before the end of the century. The newly­discovered planet is a little larger than the earth. Scientists have named it Proxima b. It orbits its sun, Proxima Centauri, once every 11days.

    Alan Boss is the Chairman of NASA's advisory group for planet exploration. He told VOA that Proxima b not only confirms the discovery of a planet, but also increases the number of other possible "earths" by a huge amount. Boss said it is possible that most stars may have at least one earth­like planet orbiting them.

    This makes the possibility of living organisms increasingly likely. Boss said he believes human beings will prove that there is life in places other than the earth in his lifetime. "I am 65," he told VOA, "But I expect to still be alive when it happens."

    Paul Butler works at the Carnegie Institution of Washington. He told VOA that finding Proxima b "makes the case concrete" that there are other planets where life could exist. Paul Butler said the researchers used two telescopes in different countries to look for possible planets like the earth. Discovering Proxima b, he believes, changes the world.

    "This work has resulted in the discovery of hundreds of planets around the nearest stars, and now a potentially habitable planet around the nearest star is in the sky," Butler said.

Many families take their children on vacation. They will usually travel for a few days or weeks during school breaks. But Julie and Tim Smith planned a longer vacation with their two children. The Smith family is on a one-year trip around the world. They plan to visit 30 countries in all. Right now, the four travelers are about halfway through their trip. Ms. Smith says they are trying to see as much of the world as they can.

Mr. Smith says one of the most interesting experiences of the trip has been meeting new people. He says people have been extremely friendly, very welcoming and love their kids. Eleven-year-old Tyler says he has enjoyed learning about the people they have met. He said, "I learned in Africa that people have very different lifestyles than in America. "His sister, 9-year-old Kara, discovered that she liked Thai food. Ms. Smith says that the trip teaches the children a lot.

It took the family a year to prepare for the trip. They had to sell their house and cars. Ms. Smith left her job and her husband is using unpaid leave. They carry small bags filled with lightweight clothing and whatever else they need. Ms. Smith says she enjoys being able to carry everything she needs on her back. She says she does not miss the things she has back home. "What has become more important is making these memories as a family and taking those with us instead."

The Smiths will continue to head east for the next six months.

In San Francisco,a large group of sea lions move themselves out of the bay waters and hang out on PIER 39, which is a popular tourist destination. According to dock（码头） officials, this is the most sea lions seen in the region in 15 years.

"Over 1,000 sea lions have been counted this week," PIER 39 harbor master Sheil a Chandor told many different medias. "The increase in sea lions is usually a good sign of their strong population and healthy living environment," said Adam Ratner, Director of Conservation Engagement at the Marine Mammal（海洋哺乳动物） Center in Sausalito, California.

"California sea lions are sentinels（哨兵） of the ocean," Ratner said. Their population to some extent reflects the health of the ocean. Therefore, seeing a large number of California sea lions is clearly a good thing.

For nearly 35 years, the animals have been a star attraction for visitors. That autumn in 1989, PIER 39 had just been repaired, but the ships had not yet been moved back. At that moment, the sea lions' unexpected arrival not only attracted fans but also created enemies. According to a website, some dock residents and workers were scared away by the strong and very unpleasant smell and noise of their new neighbors, while others saw these animals as a bright spot after the destructive Loma Prieta earthquake.

The officials sought help from the Marine Mammal Center to find a way to deal with sea lions. Ratner said that the final decision is to let the sea lions stay and coexist with humans. "The fact proves that this is really a good thing," he said. "This is just a proof of how we can truly work together and think about how we can share our coasts with marine mammals and other wildlife in a way that benefits all the parties involved."