Scientists are debating how to limit their newly-discovered power to change genetic structure (结构). Scientists already modify the genes (基因) of farm animals and agricultural plants to make them more productive or stronger. But now they can also change genes in wild animals and plants. These genes would continue into later generations. For example, it may be possible for scientists to remove from existence the kind of mosquitoes, small flying insects, that carry the Zika virus. They might also be able to permanently remove species (物种) of plants and animals that are damaging to other species.

    In a report published last week, the U. S. National Academies of Sciences, Engineering and Medicine (NAS) said it supports continued research on this kind of gene control. But it warned that it is not possible to know what will happen when these changed plants and animals are released (释放) into the wild.

    Sixteen biologists, ethicists (伦理学家) and policymakers are on an NAS committee that is examining the issue. They say that there is value to the new technology. But, they say, there is not enough evidence to support the release of modified organisms (生物体) from the laboratory into nature.

    Many people would support stopping mosquitoes and rats from carrying diseases. But scientists say we must understand the possible scientific, ethical, legal and social results of such action before we decide whether to take it. Gene modification is spread through reproduction (繁殖).

    Changed genes will continue to spread as long as an animal or plant continues to reproduce. They cannot be limited to a farm or kept within a country's borders. Scientists are wondering what may happen if a modified organism mates with another species. They are not yet sure how the modified genes would affect the other species. It is possible that those genes could harm those creatures or even lead to their disappearance from our planet.

    Many people believe that you lose the ability to learn new languages as you get older. Language experts, however, will tell you that you're never too old to learn a new language. As you get older, it can be more difficult to learn a new language, though.

    Children and adults learn new languages in different ways. For children, language is their life. They study for thousands of hours every year, because they need to learn languages to become part of their communities. Adults, on the other hand, are already part of a language community. Learning a new language means becoming part of another language community, and adults rarely get the chance to practice as much as young children do.

    Moreover, children learning a new language are expected to make mistakes. This gives them freedom when learning to be daring and confident. Adults, however, often feel pressured to be perfect when learning a new language. This can discourage many people and make it even harder to learn a new language.

    When young children learn a new language, they come to see various languages as a “normal” part of society. This mindset （思维模式） helps them embrace learning a new language without feeling like they're doing something unusual or “too hard”.

    So if you want to learn a new language, go for it! It's never too late to learn a new language. If you're older, it may take more work, but it can be done. If you're a young child, though, now is the time to step out and learn a new language!

    Every mobile phone user worries about the battery life… Finally it's here! The amazing mobile phone solar charger will make sure your phone never runs out of battery again.

    Our solar chargers are suitable for most phones: iPhone, Blackberry, Samsung, HTC, OPPO and LG. Our solar chargers can also charge your iPad, MP3 / MP4 player, iPOD, camera,GPS and so on. They are supplied with a wide range of adaptors(转换插头), which are suitable for different kinds of devices.

    Our chargers are light and small. They fit very easily into a pocket. You can use the power of the sun to charge your solar charger on sunny days, and if your charger needs power on dull days, it can be charged by your PC via its USB connection.

    Our chargers store many hours of battery life depending on which model you choose. The higher the mAh (电池的容量单位) is, the more powerful the charger is. The solar charger is great for: heavy phone users, travelling, backpacking, camping trips, boating, long plane flights and saving energy (clean and environmentally friendly). It is perfect for charging in foreign countries — you may arrive at your overseas hotel destination and not be able to find a local adaptor.

    Keep one for emergencies — it could save your life. What if you break down in the middle of nowhere and you have no battery to call for emergency help? Or when there is no power available?

    If you won't leave home without your phone, then don't leave home without one of our solar charger.

iPhone Solar Charger — 1,900 mAh

    Price: US$37

    Weight: 69g

    Colour: Black

    It stores the power until you use it.

    Leather iPad Charger — 4,400 mAh

    Price: US$121

    Weight: 400g

    Colour: Red, black, white ＆pink

    Hard Plastic Solar Charger — 1,600 mAh

    Price: US$51

    Weight: 60g

    Colour: Black

    International Robotics Forum（论坛）

    Tokyo Big Sight, Tokyo, Japan, December 4-5

    The Robotics Society of Japan ( RSJ) , to provide opportunities for young robot lovers to learn more about industrial and service robots, is going to hold the International Robotics Forum that will cooperate with this year's International Robot Exhibition.

    The lectures and explanations throughout the Conference will be given in Japanese but will be interpreted into English at the same time. The Conference will offer a great opportunity for senior high school students from all around the world to communicate with each other through robots. Therefore, we look forward to your active participation.

    The event will take place two days. On the morning of Day One, Prof. Shin' ichi Yuta of the Shibaura Institute of Technology will give a lecture on basic mobile robotics and learning through robots.  This will be followed by a talk by Mr.  Kazuhiko Yokoyama of Yasukawa Electric Corporation who will explain the mechanism and control of robots and also point out the highlights(最精彩的部分）of the International Robot Exhibition.

    We will prepare a challenge for all the participants.  We will send you themes for robot research. You will study them in advance, and on the afternoon of Day One, you wi11 visit the Tokyo International Exhibition Center and investigate (详细研究）real robot . You will be able to experience fun and excitement of advanced robot technologies.  On the morning of Day Two, you will present your study and investigation results.

    On the afternoon of Day Two，as the final event, awards will be given by the RSJ to groups that have given outstanding presentations.

We hope that many future robot researchers and engineers will be born today.

    The Nobel Prize Winners in Literature

    Rabindranath Tagore(1913)

    Prize motivation: because of his deep sensitive, fresh and beautiful poetry, with perfect skills, he has made his poetic thought, expressed in his own English words，part of the literature of the West.

    William Faulkner (1949)

    Prize motivation: for his powerful and artistically unique contribution to the modern American novel.

    Ernest Miller Hemingway(1954)

    Prize motivation：for his mastery of the art of narrative, most recently demonstrated in The Old Man and the Sea.

    John Steinbeck (1962)

    Prize motivation: for his realistic and imaginative writings, combining sympathetic humour and keen social perception.

    Sir Winston Leonard Spencer Churchill(1953)

    Prize motivation：for his mastery of historical and biographical description as well as for his brilliant speech skills in defending noble human values.

    Claude Simon (1985)

    Prize motivation: he in his novel combines the poet's and the painter's creativeness with a deepened awareness of time in the description of the human condition.

    Mo Yan (2012)

    Prize motivation：he, with dreamlike realism，combines folk tales，history and the contemporary.

    Bob Dylan (2016)

    Prize motivation：for having created new poetic expressions within the great American song tradition.

    While Black Friday and Cyber Monday help start the holiday shopping season, Giving Tuesday, which will be observed on November 28, attempts to inspire the season of giving. Now in its sixth year, the charitable(慈善的)day uses the power of social media to encourage organizations and individuals to donate funds or resources to worthy causes. Its mission is to bring positive change to communities through giving.

    Though devoting just one day to a worthy cause may not seem much, Giving Tuesday makes a surprisingly significant impact. In 2015,ORGANIZE,an online organ donor program asked people to “Give with your Heart”,by becoming registered donors. Thousands of Americans listen to the cry for help, resulting in one of the largest digital donor drives in US history.

    That same year, the Cleveland Library and the Pratt Library in Baltimore competed to see who could encourage more donations. While the Pratt Library won with a $41,000 acquisition, the Cleveland Library was able to raise a fairly large amount for its programs as well. In 2016, the University of Michigan encouraged students and friends to donate to hourly challenges. They raised an amazing $5.5 million! The university hopes to recreate the magic this year, with a virtual celebration to mark the institution's 200th anniversary.

    Giving Tuesday is not just a US phenomenon, but a global movement. In 2016, 98 countries participated in the event, raising $177 million, a 44% increase over 2015, when 71 nations collected $116.7 million. These numbers can only increase as the day gains further recognition.

    Though donating funds is a great way to help, there are numerous other ways to support your local community. You can give back by volunteering at a nearby nonprofit or food bank. Social media experts can do their share by spreading the information and inspiring their colleagues to get involved. Another great way to celebrate Giving Tuesday is by helping those closest to you, whether that's assisting a family member with chores or helping a neighbor with yard work.