Last week my youngest son and I visited my father at his new home in Tucson, Arizona. He moved there a few years ago, and I was eager to see his new place and meet his friends.

My earliest memories of my father are of a tall, handsome successful man devoted to his work and family, but uncomfortable with his children. As a child I loved him; as a school girl and young adult I feared him and felt bitter about him. He seemed unhappy with me unless I got straight A's and unhappy with my boy- friends if their fathers were not as "successful" as he was. Whenever I went out with him on weekends, I used to struggle to think up things to say, feeling on guard.

    On the first day of my visit, we went out with one of my father's friends for lunch at an outdoor cafe. We walked around that afternoon, did some shopping, ate on the street table, and laughed over my son's funny facial expressions. Gone was my father's critical air and strict rules. Who was this person I knew as my father, who seemed so friendly and interesting to be around? What had held him back before?

    The next day my dad pulled out his childhood pictures and told me quite a few stories about his own childhood. Although our times together became easier over the years, I never felt closer to him than at that moment. After so many years, I'm at last seeing another side of my father. And in so doing, I'm delighted with my new friend. My dad, in his new home in Arizona, is back to me from where he was.

    The Amazing Penguin Rescue

    The summer of 2016, the ship MV Treasure sunk, creating an oil spill. Thirteen hundred tons of fuel oil were flowing right in the middle of the African Penguins' habitat. Soon the oil covered about 20,000 penguins. Without swift help, the seabirds would have no chance for survival. Volunteers were showing up by the thousands and I also took part in what was the largest animal rescue operation ever.

    A warehouse was turned into a rescue center near the habitat and hundreds of pools were built to hold about 100 oiled birds each. When walking into the center, I couldn't believe my ears. I had expected to walk into a chorus of honking and squawking(叫声). Instead, the center sounded like a library. The penguins were dead silent. My heart ached for the painful birds. Cleaning them all seemed like an impossible task. But we had to carry on like doctors in an emergency room. There was no time for doubt. Cleaning oil off a penguin wasn't easy. Even with more than 12,500 volunteers, it took a month to bathe all 20,000 birds at the center.

    While volunteers were busy bathing the oiled penguins, another crisis (危机) was developing. Oil from the spill had started moving north. Tens of thousands of penguins were in the oil's path. But we already had our hands full with 20,000 recovering birds. If any more birds were oiled, we wouldn't have enough resources to save them.

    One researcher came up with an idea: What if the penguins were temporarily moved out of harm's way? Experts decided to have a try. Volunteers rounded up the penguins and released them 500 miles away. The hope was that by the time the seabirds swam home, the oil would be gone. The plan worked! Another 20,000 penguins were saved.

    The entire penguin rescue took about three months. More than 90% of the oiled penguins were successfully returned to the wild. Looking back on the rescue, I am still amazed by the work of the volunteers. What I could hardly believe was that we accomplished an impossible task.

    The arm bones of women who lived 7,000 years ago show a surprising level of strength-even higher than today's professional athletes. that's according to a first-ever study comparing prehistoric(史前的) bones to those of living people. The finding suggests a revision of history- the everyday lives of prehistoric women were filled with hard labor, rather than just sitting at home doing lighter tasks while the men struggled and fought for life.

    Before the study, there are no clear records describing how our ancient ancestors lived. It can be easy to forget that bone is a living tissue, one that responds to the difficulties we put our bodies through, "said lead author Alison Macintosh."Physical force and muscle activity both put pressure on the bone. The bone reacts by changing in shape, thickness and other aspects over time.

    Previous studies only compared female bones to contemporary male bones, the researchers said-and that's a problem, because the response of male bones to stress and change is much bigger than that of women. For instance, as humans moved from a hunter-gatherer lifestyle constantly on the move to a more settled agrarian(农耕的) one, changes can be observed in the structure of the shinbone(胫骨)- and these changes were much more evident in men.

    However, a comparison of the bones of prehistoric women to the bones of living female athletes can help us work out a more accurate picture of what those prehistoric women were doing. "By analyzing the bones of living people and comparing them to the ancient bones, we can start to explain the kinds of labor our ancestors were reforming, Macintosh said. What they found was that women's leg strength hasn't changed a great deal, but their arms used to be very powerful. Prehistoric women, the researchers found, had arm strength 11-16 percent stronger than those of modern rowers, and 30 percent stronger than those of non-athletes.

    The Japanese have always been at the forefront at deploying (利用) robots to perform jobs that are traditionally done by humans. Over the past year, humanoid robots have been seen helping customers at the Mitsubishi Bank and even filling in for human science communicators at museums. Therefore, it is not surprising to hear that the country has the world's first hotel that is staffed almost entirely by the Androids!

    The aptly (巧妙地) named Henn-na ("strange" in Japanese) Hotel which opened its doors on July 17 is located at Nagasaki's Huis Ten Bosch theme park. It is the idea of Hideo Sawada, a Japanese businessman who is fascinated by the possibility of replacing humans with robots. His aim is to have this futuristic hotel be run mainly by the intelligent humanoids.

    Guests checking-in are welcomed by a family friendly English-speaking robot wearing a bow tie and bell-hop (侍者) hat. Though experienced at his job, he does request guests not to ask him "a difficult question" since he is after all, "just a robot!" Those seeking a more "regular" experience, can approach the human-like Japanese-speaking robot.

    When ready, visitors can request the robot "porters" to help carry belongings to their room. Those that need to stow away valuables can hand them to a helpful robot who will place them inside an individual safe box in exchange for a small fee. A one-foot-high concierge (管理人) is available to provide information about the hotel's amenities (便利设施), nearby attractions, and even order a taxi if needed.

    So how much does it cost to live in this crazy cool hotel? It depends on when you decide to go. During the low season, guests can get away with paying as little $60 a night for a basic room. However, during the peak season when rates, are determined by an online auction, the price can get as high as $153.

    Until the 1990s coffee was rarely served in China except at luxury hotels aimed at foreigners. When Starbucks opened its first outlet there in 1999, it was far from clear that the country's avid tea-drinkers would take to such a different-and usually more costly- source of caffeine. Starbucks tried to attract customers unused to coffee's bitter taste by promoting milk and sugar-heavy concoctions(调和) such as Frappuccinos.

    But coffee has become fashionable among the middle class in China. Starbucks now has about 3, 800 outlets in China- more than in any other country outside America. Statista, a business-intelligence portal(门户网站), says the roast coffee market in China is growing by more than 10 % a year. Starbucks and its rivals see big opportunities for expanding there.

    So too, however, do home-grown competitors. A major new presence is Luckin Coffee, Beijing- based chain. Since its founding less than two years ago, it has opened more than 2,300 outlets. On May 17th Luckin's initial public offering on the Nasdaq stockmarket raised more than $570m, giving it a value of about $4bn.

    Luckin's remarkable growth is sign of change. No longer do Chinese consumers see coffee as such a luxury. Most of Luckin's outlets are merely kiosks where busy white-collar workers pick up their drinks, having ordered them online. Super-fast delivery can also be arranged through the company's app. Independent coffee shops are springing up. The growth is striking given the country's reputation for its tea-drinking culture where many residents like to relax in teahouses sipping tea served gracefully.

    But the two markets are different. The teahouses tend to cater to older people who like to spend long hours playing mahjong and gossiping. At the coffee shops it is rare to see anyone over 40. Young people use them for socialising, but much of their interaction is online -sharing photos of their drinks and of the coffee-making equipment. An option on the Chinese rating app Dianping allows users to search for wanghong ("internet viral") coffee houses: ones with particularly photogenic decor(照片装饰) where better to sip and We Chat?

The ancient Chinese built two great engineering wonders: the Great Wall and the Grand Canal. Though the Great Wall's effect in military {#blank#}1{#/blank#} (defend) has worn off over time, the Grand Canal remains an important channel of cultural communication.

The Grand Canal, {#blank#}2{#/blank#} is made up of three parts (Suitang Grand Canal, Beijing Hangzhou Grand Canal and Zhedong Grand Canal), is a {#blank#}3{#/blank#} (run) epic (史诗) of transformation. The man-made waterway runs more than 2,000 kilometres from north to south across the large eastern flatland of China. It is about 16 times {#blank#}4{#/blank#} size of the Suez Canal in Egypt and 33 times {#blank#}5{#/blank#} (long) than the Panama Canal, the world's second- and third-largest man-made waterways. "It sees the striking and early development of water engineering," the UNESCO website says {#blank#}6{#/blank#} (official).

In ancient times, the Grand Canal served {#blank#}7{#/blank#} the key waterway for grain transport and every kind of economic and cultural exchange. It also improved the time-consuming journeys of workers {#blank#}8{#/blank#} materials for the building of the Forbidden City in Beijing, the imperial city of the Yuan (1271-1368), Ming and Qing (1644-1911) dynasties.

Years ago, it {#blank#}9{#/blank#} (inspire) the name of Chenchen, one of the three mascots (吉祥物) of the Hangzhou Asian Games. Chenchen, from the Gongchen Bridge, which goes across the Hangzhou part of the Grand Canal, is coloured blue {#blank#}10{#/blank#} (suggest) science and technology.