John was part of my childhood growing up in the 1970s and a link to sunny, fun-filled days spent on the beach at Bangor in Northern Ireland where we went for our summer holidays. To many, he was a mystery. Every afternoon John would wander to the end of the pier (码头) where he fed the seagulls and delighted in the sound of their excited cries as they flew around his head.

    Often I asked my family questions regarding John. Eventually I gave up as no one could tell me anything about him. As I grew up, my visits to the beach became less frequent, and my memories of John buried in a child's imagination.

    Last year memories came flooding back as I walked along the coastline, where I noticed a lady feeding the seagulls on the pier, and I decided to introduce myself. Then I came to know that the lady was John's daughter, and after John left this world she carried out the ritual (惯例), which had held such importance for her father.

    In some strange way I felt we shared a bond, each needing to remember. In return, Lucy told me of John's life, his days in the British Navy (海军) during World War I and how he almost lost hope when his ship was attacked by a German U-boat in the North Sea and he found himself in a lifeboat with five others.

    Close to death, he thought he heard the sound of wings. He put up his hands, only to catch a seagull that had landed on the side of the boat. The seagull saved the lives of the six men as it was used to catch fish, which kept them alive until they reached land. This period of John's life was one he never talked about. But the ritual he first performed as a young man remained a part of him until he died.

    Now I visit Lucy as often as I can, just to chat or very often walk along the beach to the pier end. We enjoy the comfortable silence, each lost in special memories.

    A few years ago, my wife, Sue had some serious health problems. She had suffered surgery after surgery and had also put on weight. Diets had not helped her and she suffered constantly from undiagnosed pain. One day the whole family sat down and drew up a “wish list”. To our surprise, one of Sue's items was to run in a marathon. Given her history and physical limitations, I thought her goal was completely unrealistic, but Sue became committed to it.

    She began by running very slowly and every day she ran just a little farther than she did the day before. Soon she could run three miles. Then five. Sue kept practicing and longed to run in the St. George Marathon in southern Utah.

    On the big day, I parked our van near the finish line, waiting for Sue. The rain was steady and the wind was cold. The marathon had started over five hours ago. The fast and strong competitors had finished already. Several cold and injured runners had been transported past me, and I began to panic. The image of Sue, alone and cold, off the road somewhere, made me sick with worry.

    Another hour passed and I spotted a small group running up. As they approached, I could see Sue, in the company of three others, and a woman in her twenties was near Sue. It was obvious that they had become friends during the race. I could see her begin to struggle. But when the finish line came into sight, she confidently even happily picked up her pace the last hundred yards to the finish line. Few people were left to congratulate my wife. They openly praised and embraced her, “She made us believe we could do it,” her new friend stated.

    From then on, she was carrying herself differently. Her head was more upright. Her shoulders were squared. Her walk had a new confidence. Her voice held a new, quiet dignity. It was not as if she had become someone new; it was more as if she had discovered a real self she had not known before. It was perseverance that made her realize she was an undiscovered masterpiece with a million things left to learn about herself. She truly liked her newly discovered self. So did I.

    Many years ago, people relied on the sun, the moon and stars to find their way around. Later, the compass was introduced. And now, we have satnav（卫星导航）systems to guide us. A satnav system uses groups of satellites to show the user's location. They send information to a receiver, such as a smartphone, to show us where we are.

    The earliest built satnav system is the Global Positioning Satellite System, which belongs to the US. Then there is Russia's Global Navigation Satellite system，the European Union's Galileo and China's own satellite navigation system, Beidou.

On October 18, 2017, an ARJ21-700 plane, which was the first domestically（国内地） produced jet equipped with the Beidou navigation system, successfully completed a test flight. The results showed the performance of the system developed by China matches that of similar systems produced abroad, according to the Commercial Aircraft Corporation of China.

    Since its introduction in 2000, the Beidou navigation system has been increasing numbers of applications linked to everyday life, from shared bikes to farming.

When it comes to shared bikes, smart locks that support Beidou chips offer more accurate positioning than others, making it easier to find a bike.

    Farmers can use Beidou-enabled tractors to plow（犁）the soil and use unmanned aircraft with Beidou to sow seeds, which can improve efficiency and make better use of resources. Beidou's farming applications have spread from Heilongjiang Province to Beijing, Liaoning, Shanxi, Hubei and other regions across China.

    With its many uses, the Beidou navigation system is even playing a big role in the Belt and Road Initiative（一带一路）. “To date, the Beidou system has covered most parts of the Asia-Pacific region, as well as countries along the Silk Road Economic Belt and the 21^st Century Maritime Silk Road,” said Yang Changfeng, chief designer of the Beidou system.

    Today, there are more than 20 Beidou satellites above our heads, and China plans to launch even more this year to expand the Beidou network to better serve the Belt and Road Initiative.

    “As Beidou expands its overseas reach, it will be increasingly popular in the logistics（物流） industry,” said Miao Qianjun, Secretary General of the navigation services association. “Ships, for example, can use it to position themselves while sailing across oceans to European countries, no longer limited to Southeast Asian regions in the near future.

    Researchers have discovered the first Earth-sized planet. It was first marked by scientists' using NASA's Kepler telescope (望远镜), so it's called Kepler﹣186f. It lies about 500 light years from Earth and goes around its star. The planet is the right distance from its star for water: not too close or not too far. Water is one important condition that scientists guess is necessary for life. So it could have water and possible life. It's called a true Earth cousin.

    "This planet is an Earth cousin, not an Earth twin," said Barclay, who is among a team of scientists reporting on the discovery in the magazine Science this week.

    "It's very exciting to find a planet similar to the Earth," Barclay said. "It's not easy work because things change as we get more measurements."

    Scientists don't know anything about the air of Kepler-186f, but it will be a task for future telescopes which can study for chemicals that have something to do with life.

    "It's possible for life to live in this planet, but that doesn't mean there is life in it," Barclay said.

    So far, scientists have found nearly 1,800 planets in the universe.

    "The past year has seen a lot of progress in the search for Earthlike planets. Kepler﹣186f is very important because it is the first planet that is the same temperature and is almost the same size as Earth," scientist David Charbonneau wrote in an email.

My dearest daughter,

    As I looked across at you sitting on the sofa watching The X Factor, I noticed that you are no longer a child, and that having just celebrated your 14th birthday, you are now a young woman starting a journey into becoming an adult woman. As I looked at you, I remembered myself at 14, and the vastly different places we are beginning this journey from.

    Your identity as a mixed-race young woman, with an English father and a Pakistani mother, has already influenced how you place yourself in this world. As yet, you are unaware of the personal struggles that I took at the age of 25 to marry. How it felt when my mother refused to come to my wedding. The sharp criticisms of the Asian community that such marriages do not work out and always end in divorce (离婚). The confidence I had to grow, as we chose to live in a multicultural community, as I refused to be shamed into living in the white suburbs (郊区).

    Then, at the age of 30, I became your mum with all the joys and struggles this brought, as I refused the Asian traditions for a new baby's arrival. From your birth, your life could not have been more different from mine. I was brought up on a council estate (地方政府建的住宅群), within a close extended Muslim family, through which poverty, racism and neglect were mixed. I was never given the freedoms or the opportunity to experience new things. Now, as I hear you play your piano, I am grateful that you have these chances.

    So many doors were closed to me as a young person, and as I fought for small steps of freedom, I soon learned that it was better to do what I wanted without the knowledge of my parents, and so lies and tricks became part of my life too. The pressures to obey, to be a "good Muslim" girl and keep the family honor, were choking. Behind closed doors at home, the neglect and abuse (虐待) took place. It was hidden, I felt the shame, lived with the fear and suffered together with my sister and two younger brothers. Oh, the power we thought our parents had over us! I was convinced that one day my father would indeed beat us so hard that leaving us for dead, he would, as his threats said he would, bury us in the large back garden, and tell the school he had taken us back to Pakistan for good. My sister and I longed for a different blue sky to live under.

    As a daughter of immigrant (移民) parents, I carried their hopes of a better education for their children—my own veins (血管) pulsing with the hard-work ethic (道德) and need to be grateful for the opportunity of a free education. And it was education that provided me with the strength to find my own blue sky. I fought to leave home to go to university at the age of 18, and never returned to live with my parents again.

    Now as you explore your mixed-race heritage, which I hope we have supported you to do with visits to Pakistan and ensuring you go to multi-cultural schools, I want you to take the very best of all that is Asian with you as you become a woman.

    The struggles of identity (身份) and belonging will come but I hope that we have given you a strong foundation from which to explore these struggles. All the chances and freedoms that I only dreamed of as a young woman, I have offered you. I have chosen a different path of loving you as my daughter, with an unconditional love that many consider "western".

    I want you to know that although your journey has been vastly different, I am excited as I watch you standing on the threshold (门槛) of becoming a woman for all the adventures and possibilities the future holds for you.

    May you fly your blue sky with grace, confidence and hope as you find your place in this beautiful and crazy world.

    Loving you now and always. Mommy

Sometimes the toughest thing about feelings is sharing them with others. Sharing your feelings helps you whether your feelings are wonderful or terrible. Sharing also helps you to get closer to people you care about and who care about you. But how?

 You can't tell your friends what's inside our backpack if you don't know what's in there yourself. {#blank#}1{#/blank#} Before you can share them with anyone, you have to figure out what feelings you have. {#blank#}2{#/blank#} You can do this in your mind or by writing them out or even by drawing pictures. Is something bothering you? Does it make you frustrated or terrified? Do you feel this emotion only once in a while or most of the time?

 The way a person feels inside is important. If you keep feelings locked inside, it can even make you feel sick! {#blank#}3{#/blank#} It doesn't mean your problems and woes magically disappear, but at least someone else knows what's bothering you and can help you find solutions.

 Your mom and dad want to know if you have problems and what's happening in your life. But what if a kid doesn't want to talk with parents? Then find another adult you trust like a relative or a teacher at school. {#blank#}4{#/blank#}

 Once you know who you can talk with, you'll want to pick a time and place to talk. You can talk publicly in your family. But some kids are more private than others and they will feel shy about sharing their feelings. {#blank#}5{#/blank#} A kid doesn't have to share every feeling he or she has.
 

A.Feelings are the same way.

B.Making a list of your feelings can help.

C.And there is always a person you can turn to.

D.Thinking about what you can do is of great importance.

E.Then find a quiet place or write it down on a piece of paper.

F.But if you talk with someone who cares for you, you will almost always start to feel better.

G.Maybe this person can help you talk with your parents about your problem or concern.