The life expectancy is the length of time that a person is normally likely to live. As it increases nowadays, the average person lives beyond the age of retirement. As a result, the elderly make up an ever-increasing percentage of society, which makes it more important to make effort to improve the lives of senior citizens.

    First of all, one way would be to make sure that the elderly have enough money on which to live. Obviously, when a person stops working, they still require a source of income to cover their basic needs such as food, accommodation and heating. A clear solution to the problem is for the government to make sure that the state pension(养老金) is enough for these needs.

    Measures should also be taken to overcome the health problems the elderly face. The government should also provide access to the best health care available, which may necessitate paying for residential homes where the elderly can have round-the-clock nursing, or, at least, providing medication free of charge to all people over a certain age.

    If we try to address the problem of social isolation (社交孤立), the lives of old people could be improved. If we organize trips for the elderly to community centers, visits from social workers, their problem of loneliness can be reduced a lot which marks the lives of so many old people living alone and far from their families.

    The last helpful suggestion is to change the attitude of the community towards its older members, who are all too often seen as a burden on society. We need to be taught from an early age to respect the views of old people, and appreciate their broader experience of life. This would help society as a whole, and encourage appreciation of the role that old people can still play today.

    A recent study by Citi Retail Services found that a growing number of people are embracing digital wallets or e-wallets, due in large part to their convenience and ease of use.

    E-wallets have been called the future of real-world payment technology.With major players like Alipay,WeChat and Apple Pay becoming popular,it seems to be a safe bet that a change in consumer payment technology is coming soon.

    CNN reporter Paul Ripley experienced a day in Beijing without his wallet."In China's largest cities, you can definitely survive without carrying a pocket full of cash and credit cards-as long as you've got your smartphone."He paid for breakfast by scanning a QR code on the window of a hole-in-the-wall restaurant.All he had to do was to enter a password and the transaction was complete.

    Unlike the situations in the US and other countries,"China doesn't have a really money-making credit card system, so Chinese people just skipped credit cards and went straight to mobile payments."Gu Yu,co-founder of the new payment app Mileslife,told CNN.He also pointed out the advantages of mobile payments."No coins or bills that can be lost or stolen. electronic receipts, the ease of keeping rack of spending-and of course,no wallet taking up space."he said.

    However, if we want to make e-wallets a mainstream trend a lot of things will have to change over the coming years.Perhaps one of the most important things that need to be changed is how people regard e-wallets.Linda Barrabee,research director for NPD Connected Intelligence, said in a statement."In order to promote on-the-go consumer transactions and commerce, wireless carriers, credit card companies, and e-commerce companies need to make sure the process is convenient,simple,and secure for consumers."

    Years ago, I lived in a building in a large city. The next building was only a few feet away from mine. There was a woman who lived there, whom I had never met, yet I could see her seated by her window each afternoon, sewing or reading.

    After several months had gone by, I began to notice that her window was dirty. Everything was unclear through the dirty window. I would say to myself, “I wonder why that woman doesn't wash her window. It really looks terrible.”

    One bright morning I decided to clean my flat, including washing the window on the inside.Late in the afternoon when I finished the cleaning, I sat down by the window with a cup of coffee for a rest. What a surprise! Across the way, the woman sitting by her window was clearly visible. Her window was clean!

    Then it dawned on me. I had been criticizing her dirty window, but all the time I was watching hers through my own dirty window.That was quite an important lesson for me. How often had I looked at and criticized others through the dirty window of my heart, through my own shortcomings?

    Since then, whenever I wanted to judge someone, I asked myself first, “Am I looking at him through my own dirty window?” I try to clean the window of my own world so that I may see the world about me more clearly.

    Chimps will cooperate in certain ways, like gathering in war parties to protect their territory. But beyond the minimum requirements as social beings, they have little instinct to help one another. Chimps in the wild seek food for themselves. Even chimp mothers regularly decline to share food with their children, who are able from a young age to gather their own food.

In the laboratory, chimps don't naturally share food either. If a chimp is put in a cage where he can pull in one plate of food for himself or, with no great effort, a plate that also provides food for a neighbor to the next cage, he will pull at random —he just doesn't care whether his neighbor gets fed or not. Chimps are truly selfish.

    Human children, on the other hand are extremely cooperative. From the earliest ages, they decide to help others, to share information and to participate in achieving common goals. The psychologist Michael Tomasello has studied this cooperativeness in a series of experiments with very young children. He finds that if babies aged 18 months see an unrelated adult with hands full trying to open a door, almost all will immediately try to help.

    There are several reasons to believe that the urges to help, inform and share are not taught .but naturally possessed in young children. One is that these instincts appear at a very young age before most parents have started to train children to behave socially. Another is that the helping behaviors are not improved if the children are rewarded. A third reason is that social intelligence develops in children before their general cognitive (认知的) skills, at least when compared with chimps. In tests conducted by Tomasello, the children did no better than the chimps on the physical world tests, but were considerably better at understanding the social world.

    The core of what children's minds have and chimps' don't is what Tomasello calls shared intentionality. Part of this ability is that they can infer what others know or are thinking. But beyond that, even very young children want to be part of a shared purpose. They actively seek to be part of a “we”, a group that intends to work toward a shared goal.

    Sila Sutharat, a roasted chicken street vendor from Phetchaburi, Thailand, has come up with a unique way of cooking chicken. He uses 1, 000 mobile mirrors that concentrate sunlight into a strong beam(光束).

    Like most other street vendors, Sila used to cook his chicken over a charcoal(木炭)fire. But that all changed in 1997, when an ordinary observation gave him a great idea. One day, he was hit by the sunlight reflected off the window of a passing bus, and he felt its heat. "I could possibly change it into energy," Sila told himself. Then he started working on how to make use of the sunlight to cook his chicken.

    "They said that I'd gone mad, and that cooking chicken like this was impossible," Sila told reporters about how people reacted to his idea. But he didn't let their jokes get to him, and in the end he was the one who had the last laugh. He invented a panel featuring 1, 000 small mirrors that could be moved. It worked exactly as he predicted, allowing him to cook a 1.5 kg chicken in just 10 to 15 minutes. "After a long time passed by, they'd say: "Actually, you could do it," " Sila Sutharat recalls. Sila says that his invention can make the temperature go up to 312'C. This is why he always wears a special mask instead of a cook's hat when operating it.

    Sila's solar roaster is an unusual sight. It has attracted quite a few curious people who are eager to taste Sila's sun-cooked chicken. He's been using this cooking method for two decades now. And he says it's much better than traditional roasting methods. It is free, cooks all parts of the chicken, and best of all, it's 100% clean. Phetchaburi Rajabhat University thought Sila's idea was very good and useful, so they awarded him an honorary science degree.

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.