Do you love holidays but hate the increase weight that follows? You are not alone.

    Holidays are happy days with pleasure and delicious foods. Many people, however, are worried about the weight that comes along with these delicious foods.

    With proper planning, though, it is possible to control your weight. The idea is to enjoy the holidays but not to eat too much. You don't have to turn away from the foods that you enjoy. The following suggestions may be of some help to you.

    Do not miss meals. Before you leave home for a feast(宴会),have a small, low-fat snack(小吃). This may help to keep you from getting too excited before delicious foods. Begin with clear soup and fruit or vegetables. A large glass of water before you eat may help you feel full. Use a small plate; a large plate will encourage you to have more than enough.

    Better not have high-fat foods. Dishes that look oily or creamy have much fat in them.

    Choose lean meat(瘦肉 ).Fill your plate with salad and green vegetables.

    If you have a sweet tooth, try mints (薄荷) and fruits. They don't have fat content as cream and chocolate. Don't let exercise take a break during the holidays. A 20-minute walk after a meal can help burn off excess(过多的) calories.

    One form of social prejudice against older people is the belief that they cannot understand or use modern technology. Activities like playing computer games, going on the Net and downloading MP3s are only for the youngsters. Isn't it unfair that older people enjoying a computer game should be frowned(皱眉) upon by their children and grandchildren?

    Nowadays older people have more control over their lives and they play a full part in society. Moreover, better health care has left more people in their sixties and seventies feeling fit and active after retirement. Mental activity, as well as physical exercise, can contribute to better health. Playing computer games is a very effective way of exercising the brain.

    When personal computers were first introduced, most older people didn't believe they would ever familiarize themselves with it. Now computers have been around for a few generations and retired people have gradually become more relaxed about using them for fun. Gamers over 65 prefer playing puzzle games and card games. Kate Stevens, aged 72, says: “I find it very relaxing. It's not very demanding, but you still need to concentrate.”

    Another development that has favored “grey games” is a change in the type of videogames available on the market. There's a greater variety of games to choose from, including more intellectual and complex strategy(策略) and simulation(模拟) games. Internet Chess and Train Simulator are among the most popular of these. Train Simulator is based on real-world rail activities. Players can choose from a variety of challenges, such as keeping to a strict-timetable and using helper engines during a winter storm.

    Some people argue that “grey gamers” simply don't have the skills required for computer games, and that teenagers are better. This couldn't be further from the truth. Most computer games require the kind of analytical thinking that improves with practice, which means that the “grey gamers” may well be far better than gamers half a century younger than them. In games where speed is the main consideration, older people would be at a disadvantage because they may have slower reaction times. On the other hand, “grey gamers” have a preference for slower paced, mind challenging games.

A few things to do during weekends to improve your life

    Weekend at last! Something you're so looking forward to after a tiring week at work. Here are several tips on how to make the most of your weekends.

    Spend time with loved ones. Reconnect with family members or friends you neglected(疏忽) lately. Don't do it out of guilt or because you have to. Do it because you want to. Reach out to them to see how they are doing. {#blank#}1{#/blank#} Return their calls if you were busy when they last tried to reach you. Talk to them. Listen to them. Be there for them.

    {#blank#}2{#/blank#} Stay away from TV, iPad, iPhone and any other electronic devices. Unplug! Your brain needs to clear up from all the stress you've put on yourself during the week. Why not read a book instead? A paper one. Seriously, when was the last time you did that?

    Laugh, laugh and laugh again. You can never have enough of it. Laugh is the best medicine ever. {#blank#}3{#/blank#} For example, it helps you manage stress, strengthen your immune system and you are 40 percent less likely to suffer a heart attack.

    Express appreciation. {#blank#}4{#/blank#} Be grateful for your family, friends, health, the food you put on the table, the clothes you wear and the air that you breathe.

    There you are. Doing a few things during weekends will have a positive long-term effect on your life. {#blank#}5{#/blank#}.

A. Apply the “no technology” rule.

B. Pause and pay attention to your thoughts.

C. Friendship is the best source of happiness.

D. Don't call them only when you need them.

E. Put them into practice and you'll beat the Monday Blues.

F. It benefits your mental and physical health in so many ways.

G. This is something you should be doing every day, not only on weekends.

    Many Years ago three soldiers,hungry and tired of battle,came upon a small village.The villagers,suffering a bad harvest and the many years of war,quickly hid what little they had to eat and met the three in the village square, shaking their heads and sighing,"Well,we are starving."The soldiers communicated with each other quietly and then the first soldier turned to the villagers.“Your poor fields have left you nothing to share,so we will share what little we have: the secret of making soup from stones.”

    Naturally the villagers were intrigued and soon a fire was built to the village's greatest pot,and then the soldiers dropped in three smooth stones.

“Now this will be a fine soup,”said the second soldier,"but a handful of salt and some parsley（香芹）would make it wonderful!"Up jumped a villager,crying “What a piece of luck!I've just remembered where some has been left!”

    And off she ran,returning with parsley.As the pot was boiling,the memory of the villagers improved: soon carrots,beef and cream had found their way into the great pot.They ate and danced and sang well into the night, thrilled about the feast and their new-found friends.In the morning the three soldiers awoke,finding all the villagers standing before them.At their feet lay a bag of the village's best bread and cheese.“You have given us the greatest gift,”said an elder,“and we shall never forget.”The third soldier turned to the crowd,and said,“There is no secret,but this is certain: people working together can accomplish great things.”At last the light dawned on villagers.Off the soldiers wandered,down the road.

    The Harvard Pre-College Program is a nice experience for high school students. Alongside peers(同辈)from around the world, you'll be introduced to college life as you attend classes, live on campus, and enjoy fun outings and activities.

    Learning without limits

    Biology, physics, law, writing and philosophy — these are just a few of the 30-plus courses you can choose from in each session. In our noncredit classes, we set aside grades so that you can fully commit to your growth as a well-rounded student. Class sizes typically range from 14 to 18 students to encourage interactive learning.

    Living at Harvard

    When you attend the Pre-College Program, you'll live in a historic undergraduate house, near Harvard Square. You will be with your fellow Pre-College students, resident directors, and proctors who provide support. You'll also enjoy meals in one of Harvard's dining halls, which are a short walk from Harvard Yard and provide many options for a variety of dietary needs.

    Thriving outside the classroom

    The summer Pre-College Program offers many mentally challenging co-curricular(补充课程的)activities beyond the classroom. With faculty and Harvard-affiliated experts, you will have the opportunity to participate in workshops on topics like the psychology of color-blindness, classic literature from around the world and science of happiness. From our Cambridge scavenger hunt to a trip to the Sand Sculpting Festival at America's first public beach, there's no shortage of fun activities in the Pre-College Program.

    Alexa is a form of artificial intelligence, or Al for short. Many people start their mornings by asking Alexa for the weather forecast or the latest news. A device (设备)that houses Alexa can also play music from your favorite playlists, keep a shopping list, order takeout food, answer questions, send voice messages and even run "smart" home controls.

    Training AI systems to respond to problems with human-like intelligence—and learn from their mistakes —can take months, or even years. Consider Alexa and similar software, such as Apples Siri. To do the tasks its human owners ask, these systems must make sense of and then respond to sentences such as, "Alexa, play my Ed Sheeran playlist" or "Siri , what is the capital of India?"

    Computers can't understand language as it is spoken by people. So AI researchers must find a way to help humans communicate with computers. The technology used to get computers to "understand" human speech or text is known as natural language processing. By natural language, computer scientists refer to the way people naturally talk or write. To teach an AI system a task like comprehending a sentence or responding to a person's last move in a board game, scientists need to feed it lots of examples.

    AlphaGO is an AI system designed by Google that has beaten a human champion, Lee Sedol, at the strategy(策略)board game Go. To train AlphaGo, Google had to show it 30 million Go moves that people had made while playing the game. Then AlphaGo used what it learned to analyze those plays as it played against different versions (版本)of itself. During this practice, the program came up with new moves —ones never seen in games between people.

    Computers, software and devices that are powered by AI can do much more, however, than just play board games and music. And one day they could make our life much easier and much more interesting.