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    We may think we're a culture that gets rid of our worn technology at the first sight of something shiny and new, but a new study shows that we keep using our old devices (装置) well after they go out of style. That's bad news for the environment – and our wallets – as these outdated devices consume much more energy than the newer ones that do the same things.

    To figure out how much power these devices are using, Callie Babbitt and her colleagues at the Rochester Institute of Technology in New York tracked the environmental costs for each product throughout its life – from when its minerals are mined to when we stop using the device. This method provided a readout for how home energy use evolved since the early 1990s. Devices were grouped by generation. Desktop computers, basic mobile phones, and box-set TVs defined 1992. Digital cameras arrived on the scene in 1997. And MP3 players, smart phones, and LCD TVs entered homes in 2002, before tablets and e-readers showed up in 2007.

    As we accumulated more devices, however, we didn't throw out our old ones."The Living-room television is replaced and gets planted in the kid's room, and suddenly one day, you have a TV in every room of the house," said one researcher. The average number of electronic devices rose from four per household in 1992 to 13 in 2007. We're not just keeping these old devices-we continue to use them. According to the analysis of Babbitt's team, old desktop monitors and box TV's with cathode ray tubes are the worst devices with their energy consumption and contribution to greenhouse gas emissions(排放) more than doubling during the 1992 to 2007 window.

    So what's the solution(解决方案)?The team's data only went up to 2007, but the researchers also explored what would happen if consumers replaced old products with new electronics that serve more than one function, such as a tablet for word processing and TV viewing. They found that more on-demand entertainment viewing on tables instead of TVs and desktop computers could cut energy consumption by 44%.

    Just a few years out of law school, I decided that I wanted to write fictions. The only thing I had ever published before was a law-review article. I had made great efforts to write when I came home at night after work, but I was too tired. I decided to quit my job.

    I began my new life on a February morning. I sat down at my kitchen table at 7:30 am and made a resolution. Every day I would write until lunchtime. Then I would lie down on the floor for 20 minutes to rest my mind. After that, I would return to work for a few more hours.

    In my first year, I sold two stories. Then I wrote a novel, but I thought it wasn't good enough, so I ended up putting it in a drawer. My second novel, Billy Lynn's Long Halftime Walk, was published to glowing reviews and received the National Book Critics Circle Award for fiction.

    My success sounds like a familiar story, but actually it was far from sudden. I quit my job, and for every story I published in those years, I had at least 30 rejections. The novel that I put away in the drawer took my four years. My breakthrough came in 2006, 18 years after I first sat down to write at my kitchen table.

    Sometimes genius (天才) is just the thing that comes out after 20 years of working at your kitchen. Also, doing something truly creative requires the energy of youth. Orson Welles made his masterpiece, Citizen Kan, at 25. T. S. Eliot wrote The Love Song of J. Afred Prufrock at 23.

    Paul and Jason were brothers who lived and worked on neighboring farms. For 35 years they farmed side by side, sharing machinery and goods as needed, without a single problem.

    However, one autumn, things changed. It began with a tiny disagreement about a horse, which grew into a major difference. The difference led to angry words, followed by weeks of silence between the two brothers.

One morning there was a knock on Paul's door. He opened it and saw a builder holding his toolbox. "I'm looking for a few days' work." the builder said. "Are there any jobs here I could help with?"

"Yes," answered Paul, extremely pleased to see the builder. "I do have a job for you. Look at that farm across the creek(小溪).That's my brother's farm. That creek used to be a grass field, but last week my brother dug a path from the river and made the creek. But I'll go him one better. See that pile of wood? I want you to build me a fence, two meters tall, so 1 won't need to see him anymore."

The builder said thoughtfully. "I think I understand the situation and I'll be able to do a job that pleases you."

    Paul had business in town that day and left the builder to his work. When he returned, the builder had just finished his job. Paul was shocked. Instead of a fence there was a bridge, stretching from one side of the creek to the other.

As Paul stood on the bridge, staring in amazement, his younger brother Jason, came across, and took Paul's hand. "You are a good man to have built this bridge after all I've done," said Jason.

Then, Paul, with tears in his eyes, said to the builder who was packing his bag to go, "Thank you so much. Please stay. I have much more for you to do."

"I'd love to." the builder said quietly, "but, I have many more bridges to build."

    "When your mother scolds you, you can look elsewhere and think about other things. Just ignore her words. But remember: such a tough attitude cannot be used often." These words are from a series of cartoons which outline skills for children to fight against their mothers. The images have created heated debate among Chinese netizens（网民）.

    Regarded as "a book for children aged 6 to 12 who are always scolded by their parents"， the cartoons, drawn by two 10-year-old Beijing girls, list over 20 skills which children can use to deal with their mothers' anger such as crying, pretending to be ashamed, fleeing into the toilet and pleasing her afterwards. Each skill is described with vivid pictures and humorous notes. The creativity of the young girls has amazed netizens, the Yangtse Evening Post reported on Thursday.

    According to one of the girls' mothers, her daughter once received a poor mark in an exam, and the mother blamed her and compared her performance with another classmate. The daughter's feelings led to her creating the cartoons. The girl's father, who first posted the pictures on his Sohu Microblog on Monday, said he hopes parents pay close attention to the pictures, allow children to feel free to develop their own characteristics and try not to criticize them so often.

    "The cartoons, although an individual case, reflect a modern phenomenon and some of the problems within Chinese family education," said Yu Qinfang, an expert on family education. According to a survey of 104 children and their parents, Yu discovered that as many as 51.9 percent of primary school students hate being urged to do things by their mothers. "Not giving children enough time and hurrying them to do things seems to be a very tiny detail within family life, but it is potentially a huge problem which can easily be ignored by parents. A mother's blame may lead to negative feelings within her child's heart," Yu said. "Parents should learn to blame less and be more patient."

    Sports can help you keep fit and get in touch with nature. However, whether you are on the mountains, in the waves, or on the grassland, you should know that your choice of sport might have great influence on the environment.

    Some sports are resource-hungry（消耗资源）. Golf, as you may know, eats up not only large areas of countryside, but also tons of water. Besides, all sorts of chemicals and huge amounts of energy are used to keep its courses（球场）in good condition. This causes major environmental effects. For example, in the dry regions of Portugal and Spain, golf is often held responsible for serious water shortage in some local areas.

    There are many environmentally-friendly sports. Power walking is one of them that you could take up today. You don't need any special equipment except a good pair of shoes; and you don't have to worry about resources and your wallet. Simple and free, power walking can also keep you fit. If you walk regularly, it will be good for your heart and bones. Experts say that 20 minutes of power walking daily can make you feel less anxious, sleep well and have better weight control.

    Whatever sport you take up, you can make it greener by using environmentally-friendly equipment and buying products made from recycled materials. But the final goal should be “green gyms(健身房；体育馆)”. They are better replacements（代替物）for traditional health clubs and modern sports centers. Members of green gyms play sports outdoors, in the countryside or some other open spaces. There is no special requirement for you to start your membership. And best of all, it's free.

    According to the Associated Press (AP), a Chinese scientist claims he successfully created the world's first genetically-edited babies.

    Chinese researcher He Jiankui, a research professor at China's Southern University of Science and Technology in Shenzhen, said he had edited DNA of twin girls born a few weeks ago. ①

    He's claims were immediately criticized by some scientists as unsafe and unethical. This kind of gene editing is forbidden in the United States and many other countries. ②Such changes to a person's DNA can pass to future generations and risk harming other genes.

    In interviews, He Jiankui defended his work. He said he had performed the gene editing to help protect the babies from future infection of HIV, the virus responsible for the disease AIDS. He said the process had “worked safely” and the twin girls were “as healthy as any other babies.” He told the AP he felt a strong responsibility “not just to make a first, but also to make an example” for future research. “Society will decide what to do next,” he said.

    When He's claims became public, the university made a statement saying his work had “seriously went against academic ethics and standards.” University officials said they had no knowledge of his research and had looked into the case. ③

    China's National Health Commission was “highly concerned” about the claims and ordered local health officials “to immediately look into” He's activity. “We have to be responsible for the people's health and will act on this according to the law,” the commission said.

    Scientists discovered in recent years a new way to edit genes that make up a person's DNA throughout the body. The tool, called CRISPR-cas9, makes it possible to change DNA to supply a needed gene or take one away that is causing problems. So far the tool has only been used on adults to treat deadly diseases, and the changes only affected that person.

    ④Kiran Musunuru, a scientist from University of Pennsylvania, told the AP that if such an experiment had been carried out on human beings, it could not be “morally or ethically reasonable.” Julian Savulescu, a medical ethics expert at Britain's University of Oxford, agreed. “If true, this experiment may cause disasters,” he told Reuters.

    However, one well-known geneticist, Harvard University's George Church, defended the attempt to edit genes to prevent infections of HIV. He told the AP that since HIV is “a major and growing public health threat” he finds such experiments “valuable.”