“I honestly have no idea how that cat got up there. It's a hundred—foot—metal pole. There's no way he climbed that thing,”Jim said to the worried woman. It wasn't even her cat, but she was passing by and saw it. immediately calling the fire—station to come to save it. Jim saw a lotof strange things as a fireman, often sad or upsetting things, but this was new.

  “I suppose we could get the blanket and see if we can convince the poor cat to jump down. But he doesn't really look too scared…”Jim said to the woman.

  “Dave, get overhere!” Jim called over his shoulder to the fire truck driver. Dave walked over and looked where Jim was pointing.

  “How'd he get up there?”

    Jim shrugged, similarly puzzled.“Do you suppose we could get the blanket and convince him tojump?”

    Dave shrugged in response.“I don't seewhy not.”

    Jim looked up at the black mass on the top of the flagpole, the Americannag waving proudly beneath him. It was definitely a cat, and heregarded the people gathered below as if they were his subjects(臣民) and he their king, his yellow eyes scanning his surroundings with apparentd is interest.

    When the blanket was spread out below the cat, Jim and Davebegan striking the flagpole. The cat lookeddown, and then gazed into the sky as if it were looking for something. Jim and Davefollowed his gaze. Suddenly, out of theclear sky, appeared adark figure. The figures wooped(俯冲) low toward the flag pole. It was aneagle! As it got closer, the cat leaped down the pole swiftly onto the ground, and then got lost in the bushes.

    Jim, Dave, and the oldwoman were left with their mouths open. They all agreedit was the best way to get it down.

    We may be only three weeks into December, but artist Jonnie Hartman has been in the holiday spirit for months, designing and building the Grand America Holiday Window Stroll.

The goal with each window stroll is to create playful and uplifting displays (展示), according to Hartman. "I really try to do something lighthearted, something whimsical, that is, something everyone can connect with and maybe not see every day in the real world," Hartman said.

    She designs all of the window displays by hand, starting with pencil sketches, then illustrating the designs on her computer and sending parts of the drawings to be printed. From there, Hartman works with a team of five people to build the displays, creating, sewing and embellishing (润色) many elements by hand.

    However, a challenge Hartman has faced over the years as she has designed the displays is making sure all of the measurements are right for elements to fit inside the windows.

"When I was in college, I was an art major, and I thought, 'I don't need math. I will never use it. I'm an artist,' and guess what, it's the most important thing that I use, ''Hartman said. "If I don't get that right, then the windows don't fit, the pieces don't come together and it just doesn't work out."

    The holiday window stroll gives Hartman a unique opportunity to hear feedback from those who observe her creations, which is something she doesn't always get to experience with her other artworks. She said it's fun to hear people's reactions as they go through the holiday window stroll.

"It just makes me happy that I can kind of set the tone for people's holiday season and just maybe bring a smile to their face," Hartman said.

    Food production does great harm to our environment. There are many procedures involved in the manufacture of food that result in greenhouse gases and other pollutants. Some procedures require the consumption of large amounts of fossil fuels, such as the transportation and storage of food products. Other factors that cause great damage to our environment include the overuse of fresh water.

    The production of beef is more damaging to the environment than that of any other food we consume. Raising large numbers of cattle requires the production of large amounts of food for the animals. It's estimated that producing one pound of beef requires seven pounds of feed.

    Land use is also a problem. If the cattle are free-range cattle, large areas of land are required for them to live on. This has led to disastrous forest cutting and the loss of rare plants and animal species, particularly in tropical rain forests in Central and South America.

    Another problem specific to beef production is methane emissions (甲烷排放). Although many people are aware of the damaging effects of carbon dioxide, they don't realize methane's global warming potential is 25 times worse, making it a more dire problem.

    Unfortunately, beef consumption is growing rapidly. This is the result of simple supply and demand factors. Specifically, there are two main causes of demand that are encouraging the production of more supply. First, the increase in the world population means there are more people to consume meat. The second factor is socioeconomic advancement. As citizens in developing nations become financially stable, they can afford to buy more meat.

    Therefore, one way to reduce the greenhouse gas emissions is for people around the world to significantly cut down on the amount of beef they eat.

    Who is smarter? A human being or artificial intelligence?

The question swept the world last week when a Google-developed program called AlphaGo defeated the world top player, South Korean Lee Se-dol, 4-1.

    So, what comes next?

    Some people have been arguing that artificial intelligence, or AI in short, will be a bad thing for humans. In an interview with the BBC in 2014, UK scientist Stephen Hawking warned that “The development of full artificial intelligence could mean the end of the human race.”

    So are we really about to live in the world shown in the Terminator movies?

    “Not quite,” answered The Economist. After all, it's not hard to get a computer program to remember and produce facts. What is hard is getting computers to use their knowledge in everyday situations.

    “We think that, for the human being, things like sight and balance(视觉平衡), are natural and ordinary in our life.” Thomas Edison, founder of Motion Figures, a company that is bringing AI to boys, told the newspaper. “But for a robot, to walk up and down just like human beings requires various decisions to be made every second, and it's really difficult to do.”

    As The Economist put it, “We have a long way to go before AI can truly begin to be similar to the human brain, even though the technology can be great.”

    Meanwhile, John Mark off of The New York Times said that researchers should build artificial intelligence to make people more effective.

    “Our fate is in our own hands,” he wrote. “Since technology depends on the values of its creators, we can make human choices that use technology to improve the world.”

What a Messy Desk Says About You

    For some time, psychologists have been studying how personality traits affect health and health-related choices. Not surprisingly, they have found that people blessed with innate conscientiousness, meaning that they are organized and predictable, typically eat better and live longer than people who are disorderly. They also tend to have immaculate offices.

    What has been less clear is whether neat environments can produce good habits even in those who aren't necessarily innately conscientious. To find out, researchers at the University of Minnesota conducted a series of experiments. In the first experiment, they randomly assigned a group of college-age students to spend time in two office spaces, one of which was very neat, the other wildly cluttered (乱堆) with papers and other work-related stuff. The students spent their time filling out questionnaires unrelated to the study. After 10 minutes, they were told they could leave with an apple or a chocolate bar. Those students who sat in the orderly office were twice as likely to choose the apple as those who sat among the mess.

    A second experiment, however, found that working in chaos has its advantages, too. In this one, college students were placed in a messy or a neat office and asked to dream up new uses for Ping-Pong balls. Those in messy spaces generated ideas that were significantly more creative, according to two independent judges, than those in offices where stacks of papers and other objects were neatly arranged.

    The results were something of a surprise, says Dr. Vohs, the leader of the study. Few previous studies found much virtue in disorder. The broken window theory, proposed decades ago, holds that even slight disorder and neglect can encourage indifference and poor discipline.

    But in the study by Dr. Vohs, disordered offices encouraged originality and a search for novelty. In the final portion of the study, adults were given the choice of adding a health "boost" to their lunchtime smoothie that was labeled either "new" or "classic." The volunteers in the messy space were far more likely to choose the new one; those in the tidy office generally chose the classic version. "Disorderly environments seem to inspire breaking free of tradition," Dr. Vohs and her co-authors conclude in the study, "which can produce fresh insights."

    The implications of these findings are also practical. "My advice would be, if you need to think outside the box for a future project", Dr. Vohs says, "then let the clutter rise and free your imagination. But if your primary goal is to eat well or to go to the gym, pick up around your office first. By doing this, the naturally messy can acquire some of the discipline of the conscientious."

Gene technology to benefit people

    Among all the fast growing science and technology, the research of human genes, or biological engineering as people call it, is drawing more and more attention now. Sometimes it is a hot topic discussed by people.

    The greatest thing that gene technology can do is to cure serious diseases that doctors at present can almost do nothing with, such as cancer and heart disease. Every year, millions of people are murdered by these two killers. And to date, doctors have not found an effective way to cure them. But if the gene technology is applied, not only these two diseases can be cured completely, bringing happiness and more living days to the patients, but also the great amount of money people spend on curing their diseases can be saved, therefore it benefits the economy as well. In addition, human life span(寿命) can be prolonged.

    Gene technology can help people to give birth to more healthy and clever children. Some families, with the English imperial(皇室) family being a good example, have hereditary(遗传的) diseases. This means their children will for sure have the family disease, which is a great trouble for these families. In the past, doctors could do nothing about hereditary diseases. But gene technology can solve this problem perfectly. The scientist just need to find the wrong gene and correct it and a healthy child will be born.

    Some people are worrying that the gene research can be used to manufacture human beings in large quantities. In the past few years, scientists have succeeded in cloning a sheep; therefore these people predict that human babies would soon be cloned. But I believe cloned babies will not come out in large quantities, for most couples in the world can have babies in very normal way. Of course, the governments must take care to control gene technology.