Colorado officials will stick to a plan to kill some mountain lions and bears to support the state's dropping mule deer (长耳鹿) population.

    Wednesday's vote permits organizations to kill up to 25 black bears and 15 mountain lions per year in the central and western parts of the state. The project will run for three years, to be followed by a six-year study of how deer populations respond to fewer predators(捕食者).

    The population of Colorado's mule deer has suffered a puzzling, years-long drop to about 450,000, which state officials said was about 110,000 fewer than there should be. A 2014 state study tied it to seven causes, including predators, whose number has greatly increased in recent years.

    Some experts, however, said the state should focus first on the human-led destruction(破坏) of mule deer habitat(栖息地). “The drop of the mule deer population is obviously not a simple problem with simple causes,” Brian Kurzel, director of the National Wildlife Federation, said. “By far, the greatest problem—the one that I think deserves the most attention in any science-based study—is habitat quantity and quality.”

    Kurzel pointed out that the U.S Bureau of Land Management recently agreed to create 15,000 new oil and gas wells somewhere in western Cororado, which was often called “the mule-deer factory”. There, the number of mule deer has fallen to about 30,000 from more than 100,000 in the early 1980s. Though state officials have known oil and gas development affects the population of mule deer, they didn't go against the plan.

    Other causes like building highways, population growth and human activities are also curbing the mule deer population, according to the study.

    State Parks and Wildlife officials don't necessarily disagree. They started a $4.5 million program as a way to gather research for later decisions.

    Icelanders have a beautiful tradition of giving books to each other on Christmas Eve and then spending the night reading. This custom is so deeply rooted in the culture that it is the reason for Christmas Book Flood, when the majority of books in Iceland are sold between September and December in preparation for Christmas giving.

    “Books get attention here.” says Baldur Bjarnason, a researcher who has written about the Icelandic book industry.

    The small Nordic island, with a population of only 329,000 people, is extraordinarily literary（文学的）. They love to read and write. According to a BBC article, “The country has more writers, more books published and more books read, per head, than anywhere else in the world... One in 10 Icelanders will publish a book.”

    It seems there is more value placed on physical, paper books than in North America, where e-books have grown in popularity. One bookstore manager said, “The book in Iceland is such an enormous gift —you give a physical book. You don't give e-books here” The book industry is driven by the majority of people buying several books each year, rather than the North American pattern of a few people buying lots of books.

    It sounds like a wonderful tradition, perfect for a winter evening. It is something that I would love to incorporate（吸收）into my own family's celebration of Christmas.

    Young people almost never get a good press(评论) these days. “Their outlook is centered on trashy books and films,” expressed one citizen in a letter I recently came across in the Daily Mail. It seems that people have been complaining about the young since ancient times. However, the young are probably no worse than they've ever been. And I think they're better. Teenagers today are brighter, more energetic, more outgoing, and more interesting than any generation before.

    The truth is, we hear plenty of bad news about youth, but we never hear about the majority. Surely they all want to be footballers or attractive models? Not a bit of it. When research company Britain-Thinks examined teenagers attitudes earlier this year, they found that the most popular goal (shared by some 70 percent) was to “have a job you love”, followed by having a university degree, owning your own home and being in a happy, long-term relationship. It tallies with another study by the Institute for Economic and Social Research, which found that what made teenagers happiest wasn't a new smart-phone or pair of shoes, but “the simple things in life” such as close friends, going swimming and spending time with their parents.

    Indeed, the more you look at the young, the more impressive they seem. They are, of course, more technologically knowledgeable and skillful than any generation before them. But the interesting thing is that they're not merely consumers; they're creators. Think of all those young people developing their own websites or machines.

    Seventeen-year-old Nick D'Aloisio is an example. He invented a news-summary app (应用程序)called Summly and sold it to Yahoo this year for a reported £18 million. The company offered him a job in California, but he turned it down. “I'll be staying in London,” he explained. “I want to finish my A levels and I couldn't really live on my own out there.”

    Of course they aren't perfect, and every generation has its fair share of bad apples. But I think our future is in safe hands.

    My color television has given me nothing but a headache. I was able to buy it a little over a year ago because I had my relatives give me money for my birthday instead of a lot of clothes that wouldn't fit. I let a salesclerk fool me into buying a discontinued model (型号). I realized this a day later, when I saw newspaper advertisements for the set at seventy-five dollars less than I had paid. The set worked so beautifully when I first got it home that I would keep it on until stations signed off for the night. Fortunately, I didn't get any channels (频道) showing all-night movies or I would never have gotten to bed.

    Then I started developing a problem with the set that involved static (静电) noise. For some reason, when certain shows switched (转换) into a commercial (商业广告), a loud noise would sound for a few seconds. Gradually, this noise began to appear during a show, and to get rid of it, I had to change to another channel and then change it back. Sometimes this technique (技巧) would not work, and I had to pick up the set and shake it to remove the sound. I actually began to build up my arm muscles (肌肉) shaking my set.

    When neither of these methods removed the static noise, I would sit helplessly and wait for the noise to go away. At last I ended up hitting the set with my fist, and it stopped working altogether. My trip to the repair shop cost me $62, and the set is working well now, but I keep expecting more trouble.

Delicate strokes(笔画), carved onto wood, with ultimate precision. This is woodblock printing, {#blank#}1{#/blank#} ancient printing technique that has promoted human civilization.

Certain people are believed{#blank#}2{#/blank#} (bring) Buddhism into China during the Tang Dynasty (618-907),when there was a strong need to produce a large number of Buddhist scriptures(经文)，and copying by hand could not meet the {#blank#}3{#/blank#} (rise) demand. Ancient Chinese craftsmen thus came up with a novel way to create printed works massively. Hence came the{#blank#}4{#/blank#} (origin) version of woodblock printing.

Traditional woodblock printing can be divided into four major steps: writing, engraving, printing, and binding. With each step then sub-divided into several procedures, {#blank#}5{#/blank#} takes roughly 30 steps to produce a woodblock print. Characters and images{#blank#}6{#/blank#} (carve) to produce raised areas or lines, which calls for skilled hands.

The Buddhist scripture Diamond Sutra, the "earliest dated printed book", can only be seen in the British Library,{#blank#}7{#/blank#} a lot of Chinese treasures are stored. It is just one example of ancient works of art that not only tells the{#blank#}8{#/blank#} (wise) of our ancestors, but also is a witness{#blank#}9{#/blank#} the pursuit of beauty by Chinese craftsmen throughout centuries.

The invention of writing gave life to great thoughts,{#blank#}10{#/blank#} it was the invention of printing that made knowledge a shareable fruit for all humankind.

A tiny Alaska village has experienced a boom in tourism in recent years as polar bears spend more time on land than on Arctic sea ice.

More than 2,000 people visited the northern Alaska village of Kaktovik in 2018 to see polar bears in the wild. The far north community lies in an area where increasingly higher temperature has sped up the movement of sea ice, the primary habitat of polar bears. As ice has gradually moved to deep water beyond the continental shelf, more bears are remaining on land to look for food.

Polar bears have always been a common sight on sea ice near Kaktovik, but villagers started noticing a change in the mid-1990s. More bears seemed to stay on land, and researchers began taking note of more female bears making homes in the snow on land instead of on the ice to raise their babies. U.S. Fish & Wildlife Service biologists began hearing reports of the increasing number of polar bears in the area in the early 2000s. As more attention was given to the plight of polar bears about a decade ago, more tourists started heading to Kaktovik.

 "The village had fewer than 50 visitors annually before 2011," said Jennifer Reed, of the Arctic National Wildlife Refuge. "Today we're talking about hundreds and hundreds of visitors, many from around the world each year," Reed said. Most tourists visit in autumn, when bears are forced towards land because sea ice is farthest away from the shore. Bruce Inglangasak, a local hunter who sometimes offers wildlife-viewing tours, said, "I've been offering polar bear tours since 2004." Many tourists stay several days in the village, which has two small hotels. The villagers have benefited a lot from that. In turn, they provide more effective protection for polar bears with financial support from tourism development.