Is there anything more important than health？I don't think so. You can't be good at your studies or work when you are ill. If you have a headache，or a bad cough，if you run a high temperature and have a bad cold，I think you should go to the doctor. The doctor will examine your throat，feel your pulse，take your temperature，sound your heart and lungs. After that he will advise some treatment，or some medicine. The only thing you have to do is to follow his advice.

    Speaking of doctor's advice, I can't help telling you a funny story. An old man came to see the doctor. The man was very ill. He told the doctor about his weakness，memory loss and serious problems with his heart and lungs. The doctor examined him and said there was no medicine for his disease. He told his patient to go to a quiet place for a month and have a good rest .He also advised him to eat a lot of meat，drink two glasses of red wine every day and take long walks. In other words，the doctor advised him to follow the rule：“Eat at pleasure，drink with measure and enjoy life as it is.”The doctor also said that if the man wanted to be well again，he shouldn't smoke more than one cigarette a day.

    A month later the gentleman came into the doctor's office. He looked cheerful and happy. He thanked the doctor and said that he had never felt a healthier man.“But you know，doctor，”he said，“it's not easy to begin smoking at my age.”

     If you want to visit only the sights that you think are most interesting, you should definitely book one of the many private tours in NYC.

Landmark Private New York Tours

     The best way to make the most of your visit to the top NYC landmarks is to use one of the private tours in NYC.

     NY See It All: From traveling through Manhattan to getting onto a boat to visit Ellis Island and the Statue of Liberty, this private NYC tour delivers superiors service. Customize（定制） your stops and see why this tour is one of the best private tours in NYC.

     NY Limo Tour: After choosing what you want to see, this private tour in NYC lets you write the route of your day. Whether you want to see historical NYC sights, movie sights, or cultural sights, it will help make your visit memorable.

     Aerial Landmark Tour: This is a fun and exciting way to explore New York City. On this 20-minute helicopter tour, you'll see the very best landmarks in Manhattan and the Bronx. Family-Friendly Private New York Tours

     NYC isn't just a playground of adults; these family-friendly private New York City tours are ideal for people traveling with kids.

Revolutionary Era Walking Tour: When you book this informative NYC walking tour, you and your kids will wander around Manhattan's Financial District and hear all about the American Revolution. With knowledgeable guides, your kids will love the tour too.

     Kids Greenwich Village Tour: This fun NYC walking tour is specifically created for children. You and your kids will visit some famous Greenwich Village sights, while the children, led by friendly guides, play games that relate to math, science, foreign language, and the arts.

    A new book called “Battle Hymn of the Tiger Mother” by Amy Chua has caused a debate (争论) about cultural differences in parenting. Amy Chua is a teacher in an American university and both of her parents are Chinese. In the book, Ms. Chua writes about how she taught her daughters. She told NBC television that she had a clear list of what her daughters were not allowed to do, such as having a play date, watching TV or playing computer games and getting any grade less than an A.

    Many people are against Amy Chua's parenting style (风格), even her husband, who is American. They say it is rude and unfair to children. But she says her parents raised her and her three sisters in that way.

    Ms. Chua says after her younger daughter shouted “I hate my life! I hate you!” she decided to retreat because she was afraid of losing her daughter. But she also says American parents often have low expectations of their children's abilities.

    “The debate is about what it means to be a successful parent and what it means to be a successful child,” said Stacy DeBroff, who has written four books on parenting. She says Amy Chua's parenting style is not limited to Chinese families. It is a traditional way of parenting among immigrants (移民). They hope to get a better future for their children.

    She also sees a risk (风险). When children have no time to be social or to develop their own interests, they might not develop other skills that they need to succeed in life. DeBroff advises parents to develop their own style of parenting and not just repeat the way they were raised.

    Would it surprise you to learn that, like animals, trees communicate with each other and pass on their wealth to the next generation?

    UBC Professor Simard explains how trees are much more complex than most of us ever imagined. Although Charles Darwin thought that trees are competing for survival of the fittest, Simard shows just how wrong he was. In fact, the opposite is true: trees survive through their cooperation and support, passing around necessary nutrition “depending on who needs it”.

    Nitrogen (氮) and carbon are shared through miles of underground fungi (真菌) networks, making sure that all trees in the forest ecological system give and receive just the right amount to keep them all healthy. This hidden system works in a very similar way to the networks of neurons (神经元) in our brains, and when one tree is destroyed, it affects all.
     Simard talks about “mother trees”, usually the largest and oldest plants on which all other trees depend. She explains how dying trees pass on the wealth to the next generation, transporting important minerals to young trees so they may continue to grow. When humans cut down “mother trees” with no awareness of these highly complex “tree societies” or the networks on which they feed, we are reducing the chances of survival for the entire forest
   “We didn't take any notice of it.” Simard says sadly. “Dying trees move nutrition into the young trees before dying, but we never give them chance.” If we could put across the message to the forestry industry, we could make a huge difference towards our environmental protection efforts for the future.

    Last week, Vodafone started a test of the UK's first full 5G service, available for use by businesses in Salford. It is part of its plan to trial the technology in seven UK cities. But what can we expect from the next generation of mobile technology?

    One thing we will see in the preparation for the test is lots of tricks with the new tech. Earlier this year, operators paid almost £ 1.4 billion for the 5G wavelengths, and to compensate for that cash, they will need to catch the eye of consumers. In September, Vodafone used its bit of the range to display the UK's first hologram (全息) call. The Manchester City captain Steph Houghton appeared as a hologram in Newbury. It isn't all holograms, however: 5G will offer faster internet access, with Ofcom (英国通讯管理局) suggesting that video that takes a minute to download on 4G will be available in just a second.

    The wider application is to support connected equipment on the "internet of things" -not just the internet-enabled fridge that can reorder your milk for you, but the network that will enable driverless cars and delivery drones (无人机) to communicate with each other.

    Prof William Webb has warned that the technology could be a case of the emperor's new clothes. Much of the speed increase, he claims, could have been achieved by putting more money in the 4G network, rather than a new technology.  Other different voices have suggested that a focus on rolling out wider rural broadband access and addressing current network coverage would be more beneficial to the UK as a whole.

    Obviously, 5G will also bring a cost to consumers. It requires a handset for both 5G and 4G, and the first 5G-enabled smart phones are expected in the coming year. With the slow pace of network rollout so far, it is likely that consumers will end up upgrading to a new 5 G phone well before 5 G becomes widely available in the next couple of years.

    When Huang Lizhi took her first class in African sociology at the University of the Witwatersrand in South Africa in February, her professor asked her and her classmates what impresses them most when it comes to Africa.

    Unexpectedly, Huang, 31, found that words like "poverty" and "safari" – negative words that were often associated with the continent in media reports – were the kind of terms her African classmates didn't want to hear. Instead, they preferred to hear the question answered in this way: "Africa is the cradle of humankind" and "Africans are passionate and generous".

    Apparently, there are some misunderstandings between us. It's true that with incidents like the Ebola outbreak in Western Africa and the emergence (出现) of pirates off the coast of Somalia hitting the news, it's easy for us to keep forgetting that Africa has one of the world's oldest civilizations – Egypt, born by the world's longest river, the Nile. The proof is in the Great Pyramid of Giza and the Great Sphinx of Giza, which are both popular among tourists. And the tombs of ancient Egypt have also become endless sources for the literature and film industries.

    When it comes to the natural environment of Africa, our misunderstandings are only bigger. But the truth is that instead of being extremely hot all year and covered by desert, the continent has large areas of savannas (稀树草原) where lions, giraffes and zebras live, the snowcapped Kilimanjaro – the highest mountain in Africa – and even thick forest on the island of Madagascar. These misunderstandings are one of the reasons why the 2018 Beijing Summit of the Forum on China-Africa Cooperation was held on Sept 3 and 4 – to understand each other better.

    Indeed, only by visiting Africa herself did Huang see the convenient living conditions, the amazing natural beauty and the friendly people. In her eyes, her classmates were as hopeful about the future of their own countries as they were about Africa as a whole, and they were quick to demonstrate both their strong will and activity. "At that moment, I knew exactly what they wanted – they wanted their culture to be respected."