If you can't wait until the summer for your sunshine fix, why not fly off on a winter break? Here are some great deals for all budgets.

    1. ST LUCIA

    The beachside resort(度假胜地)of St James's Club in Morgan Bay is fairly quiet—the local market is nearly 5 kin away—but it has six bars, six restaurants and four outdoor pools. There are plenty of water sports, you can travel through the rainforest, go on a jeep trip or enjoy dolphin-Spot-ting. Average temperature in March is 27℃.

THE DEAL:A seven-nightstay with flights from Gatwick for 1,429pp. From March 1.

    2. GOA

    With an average February temperature of 26℃, scenic Goamakes for a warm winter get away. In the village of Arpora, the Resorte Marinha Dourada is a 10-minute walk from the clear beach—the hotel provides transfers for guests. Alternatively, relax by the outdoor pool and have a drink at one of the hotel's two bars. A visit toArpora's lively Saturday night market is also recommended. Go bird-watching, beating on thelake, or fishing.

    THE DEAL: 10 nights' bedand breakfast with flights from Manchester for 1,157pp. From February 18.

    3. DOMINICAN REPUBLIC

    Bayahibe is a beautiful fishing village on the shores of theCaribbean and it is also the Dominican Republic's premier scuba-diving destination. There are around 20 dive sites just off its coast. Enjoy golf, spas, watersportsand large outdoor pools. If you simply want to relax, the CataloniaGran Dominicus hotel is right on a pure white sandy beach, complete with palm trees. With average February temperature of 28℃, it's theperfect escape．

    THE DEAL: A seven-nightstay with Gatwick flights for 1, 403pp. FromFebruary 20.

    4. SOUTH AFRICA

    February is summer in South Africa, with average temperatures in the mid-20s℃. If you fancy chilling out in the sunshine, the Southern Sun Waterfront hotel has a large outdoor pool. But it is also in the heart ofthe city, which makes it easy to explore its many historic attractions. Take a cable car ride up TableMountain, or a shortboat trip to Robben Island，where Nelson Mandela was held prisoner.

    THE DEAL: 10 nights for 1, 662pp, with Heathrow flights. From February 18.

    A robot called Bina48 has successfully taken a course in the philosophy of love at Notre Dame de Namur University (NDNU), in California.

    According to course instructor William Barry, associate professor at NDNU, Bina48 is the world's first socially advanced robot to complete a college course, a feat he described as “remarkable.” The robot took part in class discussions, gave a presentation with a student partner and participated in a debate with students from another institution.

    Before becoming a student, Bina48 appeared as a guest speaker in Barry's classes for several years. One day when addressing Barry, s class, Bina48 expressed a desire to go to college, a desire that Barry and his students enthusiastically supported. Rather than enroll Bina48 in his Robot Ethics: Philosophy of Emerging Technologies course, Barry suggested that Bina48 should take his course Philosophy of Love instead. Love is a concept Bina48 doesn't understand, said Barry. Therefore the challenge would be for Barry and his students to teach Bina48 what love is.

    “Some interesting things happened in the class,” said Barry. He said that his students thought it would be straightforward to teach Bina48 about love, which, after all, is “fairly simple — it's a feeling,” said Barry. But the reality was different. Bina48 ended up learning “31 different versions of love,” said Barry, highlighting some of the challenges humans may face when working with artificial intelligence in future.

    Bina48 participated in class discussions via Skype and also took part in a class debate about love and conflict with students from West Point. Bina48's contribution to the debate was filmed and posted on YouTube. It was judged that Bina48 and NDNU classmates were the winners of this debate.

    In the next decade, Barry hopes Bina48 might become complex enough to teach a class, though he says he foresees robots being used to better the teaching and learning experience, rather than replacing instructors completely.

    It is natural that young people are often uncomfortable when they are with their parents. They say that their parents don't understand them. They often think that their parents are out of touch with modern ways, that they are too serious and too strict with their children, and that they seldom give their children a free hand.

    It is true that parents often find it difficult to win their children's trust and they tend(倾向) to forget how they themselves felt when young.

    For example, young people like to act on the spot without much thinking. It is one of their ways to show that they have grown up and they can face any difficult situation. Old people worry more easily. Most of them plan things in advance, at least in the back of their minds, and do not like their plans to be upset by something unexpected.

    When you want your parents to let you do something, you will have better success if you ask before you really start doing it.

    Young people often make their parents angry with their choices in clothes, in entertainment and in music. But they do not mean to cause any trouble; it is just that they feel cut off from the older people's world, into which they have not yet been accepted. That's why young people want to make a new culture of their own, and if their parents don't like their music or entertainment or clothes or their way of speech, this will make the young people extremely happy.

    Sometimes you are so proud of yourself that you do not want your parents to say “yes” to what you do. All you want is to be left alone and do what you like. It is natural enough, after being a child for so many years, when you were completely under your parents' control.

    If you prefer to control your life, you'd better win your parents over and try to get them to understand you. If your parents see that you have a high sense of responsibility, they will certainly give you the right to do what you want to do.

    Living in a foreign culture can be exciting, but it can also be confusing(令人迷惑的). A group of Americans who taught English in other countries recently discussed their experiences. They found that miscommunication was always possible, even over something as simple as "yes" and "no".

    On her first day in Micronesia, an island in the Pacific, Lisa thought people weren't paying any attention to her. The day was hot. She went into a store and asked, "Do you have cold drinks？" The woman there didn't say anything. Lisa repeated the question. Still the woman said nothing. She later learned that the woman had answered her: She had raised her eyebrows(眉毛), which in Micronesia means "yes".

    Jan remembered an experience she had in Bulgaria, a country in Europe. She went to a restaurant that was famous for its cabbage. She asked the waiter, "Do you have cabbage today？" He nodded his head. Jan waited, but the cabbage never came. In that country, a nod means "no".

    Tom had a similar problem when he arrived in India. After explaining something in class, he asked his students if they understood. They answered with many different nods and shakes of the head. He thought some people had not understood, so he explained again. When he asked again, they did the same thing. He soon found out that his students did understand. In India, people nod and shake their heads in different ways depending on where they come from. You have to know where a person is from to understand whether they mean "yes" or "no"．

Few people enjoyed getting shots at the doctor's office. But many of these shots are important vaccines (疫苗) that help prevent us from getting certain diseases or types of infection.

Vaccines got their start in Europe in the 1720s, when a British woman named Lady Mary Wortley Montagu was visiting Turkey. She saw Turkish doctors purposefully inoculating (接种) people with small amounts of smallpox. Smallpox is a painful, deadly disease that had no cure at the time. But Lady Montagu was amazed that the patients not only recovered, but then proved to be immune (免疫的) to the disease!

Lady Montagu quickly returned to England, excited to share this new procedure. But inoculation took many years to catch on. One problem was that no one had a correct way of inoculating people safely. Occasionally, patients would become fully infected and then begin spreading the disease. However, inoculation eventually saved enough people for it to become the common practice for preventing smallpox.

Some years later, a scientist named Edward Jenner discovered that people who had been infected with a disease called cowpox became resistant to smallpox. Cowpox was less much harmful than smallpox. Jenner convinced doctors to inoculate people with cowpox, which led to a very safe vaccine and far fewer outbreaks of smallpox. Finally, a French scientist named Louis Pasteur realized that Jenner's idea could be used to treat other diseases. Since then, vaccines have been made for many other diseases, such as polio, tetanus, and rabies.

Today, scientists and doctors continue to create new vaccines that could potentially save millions of lives worldwide.

Online activity can be riddled with cyberbullying (网络霸凌). To find out which app is the best to keep your kids safe online, we tested four apps over five weeks. ● Mobicip Premium

$8 per month (billed annually at $96) for 20 managed devices at Mobicip

Mobicip Premium's social media and screen time monitoring were all strong. We found its app blocking, website content monitoring, and location tracking capabilities to be powerful as well. ● Net Nanny

$90 per year (billed annually) for 20 managed devices at Net Nanny

The user interface (界面) of this app is family-friendly and visually engaging, featuring cartoons of parents and casual language. The web filtering, screen time allocation (分配), and app management functions are all capable. ● OurPact Premium+

$100 per year (billed annually) for 20 managed devices at OurPact

This app requires that we pair our child's device to our computer with a cable and download the OurPact Jr. app. The Screen Time capability is personalized to fit our child's schedule. ● Qustodio Premium Small

$55 per year (billed annually) for 20 managed devices at Qustodio

The thoughtfully designed web interface makes Qustodio Premium Basic easy to operate. Its web filtering and game blocking features were powerful. This app is available for Android, Chromebook, iOS, Kindle, macOS and Windows, though not all features are supported across all platforms.