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 enjoy 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 games exciting, and they often feel puzzled（迷惑的）at why their kids play such simple games 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 ordinarily 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.

    In 1971, UN scholar Paolo Lugari started an eco-social experiment in Gaviotas, Colombia. Located in one of the most extreme climates, Gaviotas was described as a sustainable, self-sufficient village in an area that Lugari called 'just a big, wet desert'.

    'They always put social experiments in the easiest places,' Lugari said.'We wanted the hardest place. We figured if we could do it here, we could do it anywhere.'

    'Lugari just thought that someday the world would become so crowded that humans would have to learn to live in the planet's least desirable areas,' wrote Alan Weisman, author of Gaviotas: A Village to Reinvent the World.

    Today, Gaviotas is an eco-village with about 200 people. They farm organically. They use wind and solar power. Since 2004, Gaviotas has been 100% fossil fuel independent. The residents also enjoy free housing, schooling, and community meals. Shockingly, there are no weapons, no police, no jail and no mayor. But though these elements would make any social experiment a success, perhaps the most remarkable accomplishment is the planting of 1.5 million pine trees and palm trees. The various results of this new tree growth have been incredible. The shade of the trees has inspired the return of many rainforest species that were once native to the region. Additionally, the residents of Gaviotas enjoy a sustainable source of income from the resin(松香) harvested from the trees.

    The United Nations named Gaviotas a model of sustainable development. The Colombia novelist and Noble Prize winner Grabriel Marquez called Lugari the 'inventor of the world'.

    A new study by a team of researchers has found that 'nature's capacity to store carbon is steadily falling as the world's farmers expand croplands at the cost of the native ecosystem such as forests'.

    Considering this disturbing fact—and as the world population increases towards an estimated 9 billion by the year 2050 and global warming continues to increase the planet's surface temperature—Gaviotas stands as one shining example of how things could be different.

    Are you looking for some new and exciting places to take your kids to? Try some of these places:

    Visit art museums. They offer a variety of activities to excite your kids' interest. Many offer workshops for making hand-made pieces, traveling exhibits, book signings(签名) by children's favorite writers, and even musical performances and other arts.

    Head to a natural history museum. This is where kids can discover the past from Dinosaur (恐龙) models to rock collections and pictures of stars in the sky. Also, ask what kind of workshops and educational programs are prepared for kids and any special events that are coming up.

    Go to a Youtheater. Look for one in your area offering plays for child and family visitors. Pre-show play shops are conducted by area artists and educators where kids can discover the secret about performing arts. Puppet (木偶) making and stage make-up are just a couple of the special offerings you might find.

    Try hands-on science. Visit one of the many hands-on science museums around the country. These science play-lands are great fun for kids and grown-ups alike. They'll keep your child mentally and physically active the whole day through while pushing buttons, experimenting, and building. When everyone is tired, enjoy a fun family science show, commonly found in these museums.

    William Butler Yeats, a most famous Irish writer, was born in Dublin on June 13, 1865. His childhood lacked the harmony that was typical of a happy family. Later, Yeats shocked his family by saying that he remembered "little of childhood but its pain". In fact, he inherited (继承) excellent taste in art from his family — both his father and his brother were painters. But he finally settled on literature, particularly drama and poetry.

    Yeats had strong faith in the coming of new artistic movements. He set himself the fresh task in founding an Irish national theatre in the late 1890s. His early theatrical experiments, however, were not received favorably at the beginning. He didn't lose heart, and finally enjoyed success in his poetical drama.

    Compared with his dramatic works, Yeats's poems attract much admiring notice. The subject matter includes love, nature, history, time and aging. Though Yeats generally relied on very traditional forms, he brought modern sensibility to them. As his literary life progressed, his poetry grew finer and richer, which led him to worldwide recognition.

    He had not enjoyed a major public life since winning the Nobel Prize in 1923. Yet, he continued writing almost to the end of his life. Had Yeats stopped writing at age 40, he would probably now be valued as a minor poet, for there is no other example in literary history of a poet who produces his greatest works between the ages of 50 and 75. After Yeats's Death in 1939, W. H. Auden wrote, among others, the following lines:

    Earth, receive an honoured guest:

    William Yeats is laid to rest.

    Let the Irish vessel (船) lie

    Emptied of its poetry.

Gemini Man

    Gemini Man is a big-budget Hollywood sci-fi-action movie based on an original concept, rather than on a superhero comic or an old TV series, even though this particular original concept is more 20 years old. In it a government assassin (杀手)is being hunted down by his own clone The original script was sold by Darren Lemke to a studio in 1997, and since then almost every male A-listener has been attached as a potential star. Now, at long last, Ang Lee has directed Gemini Man, and Will Smith plays both the veteran assassin and his much younger doppelganger (分身).

Jojo Rabbit

    During World War Two, a 10-year-old German boy (Roman Griffin David) is desperate to be a dutiful Nazi, only to discover that his mother (Scarlett Johansson) is hiding, a Jewish girl (Thomasin McKenzie) in their house. It may not sound like the stuff of a big-hearted comedy but Taika Waititi can make anything warm and funny. As well as writing and directing Jojo Rabbit, Waititi co-stars as the boy's imaginary friend,a nitwitted Adolf Hitler.

Doctor Sleep

    Mike Flanag's new film is adapted from Stephen King, novel, Doctor Sleep, which was a sequel (续集) to The Shining. You can expect to see blood flowing out of lifts in a rapid stream, ghostly twin girls and headache-including carpet patterns. Ewan McGregor stars as Danny Torrance, the boy with psychic powers m 1980 film. Now, he is a middle-aged hospital counsellor.

Maleficent: Mistress of Evil

    Here's another chance to see Angelina Jolie. In 2014 she starred in Maleficent, Disney's live-action remake of the Sleeping Beauty cartoon from 1959. The twist was that the eponymous wicked fairy wasn't so wicked, after all, and that the real villain was the father of Princess Aurora (Elle Fanning). The sequel's subtitle promises that Maleficent will actually be evil this time around, her change of heart prompted by Aurora's engagement to handsome prince (Harris Dickinson).

Getting rid of old tyres (轮胎) has long been a problem. Most are thrown into landfills or piled up in storage. Energy recovery is another common method. This involves burning tyres to generate electricity or heat for industries, but that produces planet warming pollution; or we use them to

repair roads, but chemicals from them might pollute the ground.

Some firms, therefore, have begun exploring an alternative. One such firm is Wastefront, which owns a big tyre-recycling plant in north-east England. In a couple of years, it will be able to turn 8 million old tyres into new products, including a black liquid called TDO (轮胎衍生油).

The process works by deconstructing a tyre into steel, rubber, and carbon black. After tearing down the steel, the remaining material is exposed to high temperatures in the absence of air to make the rubber change into a mix of hydrocarbon gases, and then they're removed. What is left behind is pure carbon black. Once the removed gases cool down, a part of them liquefies(液化) into TDO. The remaining gases are to be burned to fuel the process. This creates a closed-cycle system that prevents emissions. 

The carbon black can be reused to make new tyres. That is of interest to tyre-makers because it helps efforts to become carbon neutral—achieving a balance between the amounts of carbon dioxide produced and the carbon dioxide removed from the atmosphere. Producing new carbon black requires burning heavy oil or coal, which lets off plenty of greenhouse gases.

The recovered TDO is well-suited for making diesel ( 柴油). While not completely carbon-neutral, it does produce an 80-90% reduction in emissions of carbon dioxide, compared with the conventional fuel. The future market for such cleaner fuels will remain large, even though electric vehicles are on the rise. Fossil-fueled vehicles will exist for decades, particularly the big burners of diesel—trucks, which are harder to electrify. The fuel is also needed by trains and ships. So, anything that helps clean up overall emissions is useful—especially if it also eases a mountainous waste problem.