It has been several weeks since we tookour daughter to college and she seems to be adjusting  well after a short period of homesickness.For us, though, it's another story. Like most parents, I love checking in on mychildren at night. But now she's gone, and I find nighttimes the hardest. Imiss her most at night.

    In my neighborhood, most of the parentswhose kids are off to college are dealing with similar melancholy. Myhusband is filled with anxiety. One friend talked about getting this sickfeeling in her stomach as she prepared for the college drop-off. We complainedthat many of us were too busy to truly enjoy being with our children while wehad them.

    For us moms, seeing Toy Story 3 onlymade the sadness worse as we watched the character Andy, who is the same age asour kids, say goodbye to his childhood as he prepares to leave for college. Andit's not just “first-time” parents like me. Two moms who have kids already wellinto college said the separation didn't get any easier. “You feel likesomething has been taken away from inside you,” said one of them.

    I imagine things will get easier withtime, especially as I see my daughter adjust to college life. Meanwhile, as Ikeep my cell phone close to me in bed and text my daughter goodnight and sweetdreams every night, I like to think at messages serve as a night light thatkeeps her safe.

    What would it take to persuade you to exercise? A desire to lose weight or improve your figure? To keep you away from diseases? To live to a healthy old age? You'd think any of those reasons would be enough to get Americans exercising. Yet a vast majority of Americans have thus far failed to swallow the "exercise pill".

    Now a research by psychologists strongly suggests it's time to think of current well-being（幸福）and happiness as motivators for exercise instead of future health, weight loss and body image.

    Dr. Segar, one of the researchers, believes that immediate rewards are more motivating than distant ones. "People who say they exercise for the quality of life exercise more over the course of a year than those who say they value exercise for its health benefits." He said. '

    Other studies have shown that what keeps people moving depends on age, sex and life circumstances. For those of college age, physical attractiveness typically heads the list of reasons to begin exercising, although what keeps them going seems to be the stress relief that a regular exercise program provides. The elderly, on the other hand, may get started because of health concerns. But often what keeps them exercising are the friendships and sense of community that may otherwise be missing from their lives. Improving daily well-being is the most influential factor for the women. Men indicate they are motivated by more distant health benefits, but this may be because men feel less comfortable discussing their mental health needs.

    "Exercise should be encouraged but the emphasis on weight loss, disease prevention and healthy aging should be reduced." Dr. Segar concluded. "Exercise can make people feel more energetic, less stressed and, yes, happier."

    New research shows sheep are clever

    People often make jokes about how dull sheep are, but new research shows they may be cleverer than we think. Researchers at the University of Cambridge discovered that Welsh mountain sheep have brainpower that equals rodents (啮齿动物). Tests found that the sheep can map the area they live in, and some may even be able to plan ahead.

    Young fish prefer noisy neighbors

    A new study has shown that young fish like to live on reefs (暗礁) with noisy neighbors! Researchers from the universities of Auckland and Bristol found that young fish looking for a home choose areas where other noisy fish live. The scientists produced all kinds of sounds which had been recorded in different natural environments. The young fish seemed to prefer the sounds of natural reefs, compared with noisy animals! The scientists compared the choice to a music fan wandering around at a music festival, choosing to set up a tent closest to the music they like best!

    Butterflies are disappearing

    A new study has shown that 17 species (物种) of butterfly found in Europe have dropped by 70% in the last 20 years. The information collected from 3,000 sites across 15 countries shows it may be caused by the loss (减少) of grasslands covered with flowers. You can encourage butterflies to come into your garden by planting flowers.

    Making friends is a skill like most skills. It improves with practice. If you want to meet people and make friends, you must be willing to take some action. You must first go where there are people. You won't make friends staying home alone.

    Joining a club or a group, talking with those who like the same things as you do is much easier. Or join someone in some activity.

    Many people are nervous when talking to new people. After all meeting strangers means facing the unknown. And it's human nature to feel a bit uncomfortable about unknown. Most of our fears about dealing with new people comes from doubts about ourselves. We imagine other people are judging us, finding us too tall or too short, too this or too that. But don't forget that they must be feeling the same way. Try to accept yourself as you are, and try to put the other person at ease. You'll both feel more comfortable.

    Try to act self-confident even if you don't feel that way. When you enter a room full of strangers, such as a new classroom, walk tall and straight, look directly at other people and smile.

    If you see someone you'd like to speak to, say something. Don't wait for the other person to start a conversation.

    Just meeting someone new does not mean that you will make friends with that person—friendship is based on mutual liking and “give and take”. It takes time and effort to develop.

    Mr. Lang worked in a factory. As a driver, he was busy but he was paid much. His wife was an able woman and did all the housework. When he came back, she took good care of him and he never did anything at home. So he had enough time when he had a holiday. A few friends of his liked gambling(赌博) and he learned it soon. So he was interested in it and hardly forgot anything except gambling. He lost all his money and later he began to sell the television, watches and so on. His wife told him not to do it but he didn't listen to her. She had to tell the police. He and his friends were punished for it. And he was hardly sent away. After he came out of lockup(拘留所), he hated her very much and the woman had to leave him.

    It was New Year's Day. Mr. Lang didn't go to work. He felt lonely and wanted to gamble again. He called his friends and they came soon. But they were afraid that the police would come. He told his five-year-old son to go to find out if there were the policemen outside. They waited for a long time and didn't think the police would come and began to gamble. Suddenly a few policemen opened the door and came in.

    "I saw there weren't any policemen outside, daddy," said the boy, "so I went to the crossing and asked some to come."

    The year of 2017 marked the 100th birthday of the honoring Chinese-American architect Ieoh Ming Pei.

    From museums to business headquarters, Pei had designed many notable buildings around the world throughout his long professional career. According to the organizers of ''Rethinking Pei: A Centenary Symposium (百年纪念座谈会)" held that year, Pei remained one of the most celebrated architects of the 20th and early 21st centuries.

    The Hong Kong Bank of China Tower is one of his most famous works in Asia. As the bank itself also celebrated its centenary in 2017, it's worth examining the building's historical and architectural background to gain a deeper understanding of the architect who changed Hong Kong's skyline forever.

    The Bank of China Tower (BOC Tower) was completed in 1989, a year which the "New York Times" called, the year of I.M. Pei." For it was in this same year that Pei also completed the glass pyramid of the Louvre Museum in Paris, the Meyerson Symphony Center in Dallas, the Creative Artist Agency Headquarters in Los Angeles, and other marvellous architectures all around the world.

    Pei was commissioned (委托)in 1982 by the Beijing-based Bank of China to design it shead quarters in Hong Kong, but construction did not start until 1985.

    There were many reasons for the delay. One of the biggest was the huge challenges posed by the location. The land parcel had been the address of a Victorian building which served as a prison during Japanese occupation of Hong Kong between 1941 and 1945. This terrible heritage might be one of the reasons why it was dismantled in 1982.

    For I.M. Pei, the challenge of the site was not its past, but its present: the relatively small land parcel was surrounded on three sides by elevated roadways serving high-speed heavy traffic, meaning there was no possible public pedestrian access. Then there was its awkward trapezoidal (梯形)shape and the fact that the site also had a deep north-south height difference.

    Another challenge was the unavoidable comparison of the BOC Tower to the neighboring Hong Kong and Shanghai Bank Headquarters(HSBC), which was also under construction. A spectacular building generously funded, its architect Norman Foster was simply told to create "the best bank building in the world." At that time it was also the world's most expensive building, costing $668 million. The Bank of China Tower's budget was approximately one fifth of the budget allowed by HSBC.

    The Hong Kong government had promised HSBC that no tall buildings would ever be built in front of its headquarters. Besides, in between the site of the Bank of China and the harbor, there were already a few buildings over 70 meters tall blocking views.

    Recognizing that going tall was the only way to create a landmark at this site with his budget, Pei came up with an architectural tower design that was simple, expressive, innovative, and upon its completion, the tallest building outside of America and the fourth tallest in the world.

    After the Bank of China officially moved into the tower in 1991, noted architect and critic Peter Blake visited the building and declared it to be "probably the most innovative skyscraper structure built anywhere to date."

    Now 30 years after the building^'s construction, the Bank of China Tower continues to offer valuable lessons of architectural and structural creativity under the most demanding conditions. Most importantly, the tower has become one of the most important cultural icons for the city of Hong Kong.