Can you imagine printing food? Some scientists are trying to revolutionize the dining experience by doing this. They hope that having a 3D printer in the kitchen will become as commonplace as the microwave. Scientists say that they are easy to use:you simply have to select a recipe and put the raw food "inks" into the printer. You can also change the instructions to make the food exactly how you want it. This means that it would be very quick and easy to create tasty and nutritious meals.

    They say that if people used 3D printers to create meals there would be less need for traditional growing, transporting and packaging processes as food production would be a lot easier. For example, alternative ingredients (原料) such as proteins from insects could be changed into tasty products. And as is known,those traditional activities are not beneficial to our surroundings.

    This technology could also help people who suffer from dysphagia (a swallowing disorder).The patients could program the printer and softer versions would be made so that they would not have trouble swallowing them.

    However,some people think that using 3D-printed foods would be a disaster. It could take away many jobs,including those for growing,transporting and packaging food. Imagine a world where there was no need for farming or growing crops and the same tastes could be printed from a raw "food ink". Likewise, traditional cafes and restaurants might lose business. Also, there are concerns about the nutritional value of printed food:is it really possible to get the nutrients we need from food-based inks?

    What's more, cooking and eating together with family and friends has long been a traditional and enjoyable activity. It is hard to imagine a world where the pastime of cooking is dead and meals can be created at the touch of a button.

    England continues to be one of the most popular tourist destinations in the world. London in particular is one of the most visited cities and draws people in with its appeal, history, and pubs. England's smaller cities, like Bath and Oxford, are equally as attractive with a lot of culture and fewer crowds. Liverpool, birthplace of The Beatles, has a rich musical history. The countryside has wonderful natural beauty. Here are some tips on traveling in England.

    Free museums—Public museums offer free admission in every city throughout England and the UK. It's a great way to learn about the country's most influential artists and history, and spend a rainy day without paying a cent.

    Book early—Book all transportation well in advance, even if you don't plan to use it. Fares can be around ￡2 with a little planning. The Megabus not only runs buses but also provides trains throughout England and is the best choice for cheap travel throughout the country.

    Pub food—Eating in England can be quite expensive, but for good cheap and filling meals, visit the local pubs, where you can get a good meal for less than ￡10. Besides, the pubs are a great way to meet people!

    Get a Taste of UK card—The Taste of the UK card offers up to 50% off at selected restaurants. You don't need to be an English to get the card, and you needn't pay the first month's membership fee, which is perfect for most travelers.

    Take a free walking tour—Many major cities in England offer free walking tours. They usually last a few hours and are a great way to see the city.

    Imagine waking up one day and finding that your beautiful local beach is no more—gone, its fine white sand swept away by an abnormal storm. You go about your daily business for 12 long years and then suddenly the beach is back, all its glory restored by another storm. This is what happened on the island of Achill, off the coast of Ireland, where people are celebrating the return of the beautiful Ashleam Bay beach that was taken from them in 2005.

    That in itself is unusual enough, but the story gets even better! You see, another beach in Achill did a disappearing act once, but took much longer to return. The beach at Doonagh, located only six miles away from Ashleam Bay, was restored earlier in 2016 after waves created by spring storms had swept away all the sand in 1984, leaving just rock pools behind.

    There is local legend that stretches back hundreds of years that says this beach at Ashlcam Bay returns for a short every seven years then disappears again. But this time around it took a bit longer than that. It was last seen in 2005 and it stayed for a few months at that time before it was washed away again.

    As you can imagine, everyone on the island of Achill is thrilled to have their sandy beach back, and even though no one knows how long it's going to be around for, they are making the most of the time they've got before it disappears again.

    Some may be quick to believe climate changes cause the phenomenon, but that's not the reason these two beaches in Achill keep disappearing, Dr Kevin Lynch, a geographer at NUT Galway, says that these occurrences are the result of hydrodynamics (流体力学) and sediment(沉积物) supply, rather than climate changes.

    Regardless of what's causing them, disappearing and reappearing beaches are just part of what makes nature so fascinating.

    Children have their own rules in playing games. They seldom need a referee (裁判) and rarely trouble to keep scores. They don't care much about who wins or loses, and it doesn't seem to worry them if the game is not finished. Yet, they like games that depend a lot on luck, so that their personal abilities cannot be directly compared. They also enjoyed games that move in stages, in which each stage, the choosing of leaders, the picking-up of sides, or the determining of which side shall start, is almost a game in itself.

    Grown-ups can hardly find children's game exciting, and they often feel puzzled at why their kids play such simple game again and again. However, it is found that a child plays games for very important reasons. He can be a good player without having to think whether he is a popular person, and he can find himself being a useful partner to someone of whom he is ordinary afraid. He becomes a leader when it comes to his turn. He can be confident, too, in particular games, that it is his place to give orders, to pretend to be dead, to throw a ball actually at someone, or to kiss someone he has caught.

    It appears to us that when children play a game they imagine a situation under their control. Everyone knows the rules, and more importantly, everyone plays according to the rules. Those rules may be childish, but they make sure that every child has a chance to win.

    I study English literature at university and have always been proud of Britain's literary heritage(文学遗产). Some British authors that you may have heard of are Charles Dickens and Jane Austen. These writers are famous all over the world because their books have been translated into many different languages. In the UK, their novels are celebrated as some of the best that have ever been written. We say that these novels are "classic" because they are still read and enjoyed years after their publication.

    I read classic novels because they are part of my university lessons but also because I enjoy them. They can teach you a lot about how people used to live and what society was like in the past. Novels like Hard Times by Charles Dickens remind us of the poverty in London during the Industrial Revolution while Jane Austen's fiction shows us what family life was like in the 18th century.

    Classic novels usually have memorable stories land interesting characters. One of my favourite books is Charles Dickens Great Expectations. It is about a boy called Pip who suddenly receives a lot of money from a mysterious supporter. As he grows up, his character changes: he becomes quite selfish and mean. Another important character is Miss Havisham. When she was young, her fiancé ran away on their wedding day. She lives in a dark house and still wears her wedding dress. She is a fascinating character, both sad and scary.

    Reading classic novels enriches my knowledge and life experience. And it has become part of life.

    Nature has provided us with many kinds of resources. It is like a great magician(魔术师), creating wonders on Earth. One of them is the Amazon rainforest, the world's largest and home to millions of plants and animals. Nicknamed" the lungs of our planet", it produces about one-fifth of Earth's oxygen. However, this wonderful natural wonder is now in danger.

    Thousands of fires have broken out in Brazil, endangering much of the rainforest. These flames have lasted several weeks and are believed to be the "most intense" in almost ten years, according to BBC News.

    The Amazon has seen a large number of fires in 2019. Between January and August, there were over 74,000 fires – the highest number since 2013, the BBC reported.

    Forest fires are common during the dry season, which runs from July to October. They are usually caused by natural events like lightning. However, most of the fires this year are believed to be caused by farmers, who use fire as a traditional part of tropical agriculture(农业) to clean land, reported CNN.

    "It's the best time to burn because the plants are dry. Farmers wait for the dry season and they start burning and clearing the areas so that their cattle can have grass," wrote CNN meteorologist Haley Brink.

    The disaster has raised concern(关注) around the world. The Amazon rainforest is important for preventing climate change, said the BBC, absorbing millions of tons of carbon annually. When trees are cut down or burned, the rainforest's ability to absorb carbon is reduced.

    Brazilian climate expert Carlos Nobre told Reuters he's worried. If more than 20 percent of the ecosystem is destroyed, the Amazon rainforest could reach a "tipping point (临界点)", where the thick jungle will turn into a tropical savannah(大草原).

    Nobre warned that it is not far off, with between 15 and 17 percent of the rainforest having already been destroyed.

    The Brazilian government has sent soldiers to fight the fires. Many people have offered their support and called for recovery efforts. For example, Tim Cook, CEO of Apple, said he wanted to donate money and US Actor Leonardo DiCaprio's environmental charity, Earth Alliance, created a donation fund to help deal with the disaster.

    The public are also encouraged to donate to charities concerned with rainforest protection. "Every little bit helps in a bad situation like this," commented Gizmodo.