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    The main aim is a fully autonomous car that gets rid of the cause of most accidents: the driver, Hodgson points out, ＂For the sake of safety, the faster you can remove humans, the better, even if there are unfortunately a few accidents from new causes. It's a question of balancing the number injured or killed by autonomous vehicles with the people whose lives are potentially saved.＂

    It's a theme that Elon Musk, head of electric car company Tesla Motors, has long supported. His company is determined to be the first to deliver a fully autonomous vehicle to consumers. Last year, Musk announced that Tesla's 2017 goal was ＂to do a demonstration ( 示 范 ) drive of full autonomy all the way from LA to New York...and have the car park itself.＂

    However, even Tesla admits that there are problems to overcome — the software needs further confirmation and the appropriate regulatory (监管的) approval needs to be in place. Indeed, recent crashes of Tesla vehicles and Google cars confirm that the software isn't ready yet.

    The UK government appears determined to encourage the development of autonomous vehicles. It's supporting four city trials, publishing the Modern Transport Bill to reduce red tape around their introduction and adapting the legal system to take into account issues such as insurance liability when a human isn't in control of a vehicle.

    The insurance industry is similarly keen to promote increasing autonomy in cars. As the Association of British Insurers (ABI) points out: ＂More than 90 per cent of road accidents are attributed to human errors.＂ This costs motor insurers a surprising £20 per day in claims.

    A woman lost the sight in one eye after going swimming in a pool at a hotel wearing contact lenses（隐形眼镜）. Jennie Hurst, from Southampton, suffered from a rare and painful infection caused by amoeba（变形虫）in water. The infection causes people to be sensitive to light and the 28-year-old said she had to stay in a dark room for three months. She is now warning of the dangers of swimming or showering wearing contacts.

    Ms Hurst experienced four operations and a treatment in which she had eye drops every half hour. "During that time I stayed in my bedroom with black curtains at the window. The only thing I could do was to listen to the radio. One evening, I was so eager to look out of window to get a look of the outside world that I opened my curtains in the middle of the night. As soon as I did this the moon shone in my eyes and it really hurt. I didn't do that again. I have been left with no sight in my left eye and the damage to my right eye could be lasting," she said.

    Ms Hurst had been wearing contact lenses for five years. "I don't even like swimming,"she said. "My friends were quite surprised that I had gone swimming and probably thought that I had been a bit lazy. I wasn't aware of the problem at all — it didn't even enter my brain to take them out. I felt responsible that I had let it happen when actually I could have just taken my contacts out."

    Tickets for the 2014 World Cup in Brazil have gone on sale, with fans able to apply on FIFA's website. FIFA is expecting a similar demand to that in Germany 2006, when there were about seven applicants for every ticket of the 64 matches. And now around 3.3 million tickets will be available for the matches in 2014.

    Tickets will range in price from￡58 for first-round matches to￡632 for the final at Maracana Stadium in Rio de Janeiro. Brazilian citizens over 60, local students and members of some social programs can purchase tickets for ￡15.

    The Price of Football - World Cup 2014

    "It's always difficult to predict," said FIFA marketing director Thierry Weil. "But I truly believe that it will be more similar to what happened in Germany than in South Africa in 2010." According to FIFA, the 2006 World Cup was attended by more than 3.3 million fans. Almost two million tickets were sold to the general public in South Africa, although the number of applications during the first ticketing phase was significantly lower.

    All applications made before 10th October 2013 will enter a random selection draw if there are not enough tickets available to fulfill all requests. The sales of the leftover tickets will begin on 5th November on a first-come, first-served basis. Another phase（阶段） will begin on 8th December after the draw is made. The tournament begins on 12th June, with Brazil playing the opener in Sao Paulo.

    A study on the price of World Cup 2014 looked at the ticket prices and the cost of travelling to Brazil and found that our English fans face hotel costs of between￡46 and￡797 a night, while packages range from￡2,999 to￡14,999.

    Buck's first day in the frozen Northland was like a bad dream. Every hour was filled with shock and surprise. Here was neither peace, nor rest, nor a moment's safety—only continual noise and movement. At evey moment life itself was in danger, because these dogs and men were not town dogs and men. They knew only the law of club and tooth.

    He had never seen dogs fight as these wolfish creatures fought, and his first experience taught him an unforgettable lesson. Curly was the victim(牺牲者). She tried to make friends with a Husky, a dog only half as large as she was. There was no warning. The dog jumped on Curly, his teeth closed together, then he jumped away, and Curly's face was torn open from eye to mouth.

    Wolves fight like this, biting and jumping away, but the fight did not finish then. Thirty or forty more dogs ran up and made a circle around the fight, watching silently. Curly tried to attack the dog who had bitten her; he bit her a second time, and jumped away. When she attacked him again, he knocked her backwards, and she fell on the ground. She never stood up again, because this was what the other dogs were waiting for. They moved in, and in a moment she was under a crowd of dogs.

    So sudden was it, and so unexpected, that Buck was taken aback. He saw Spitz run out his tongue in a way he had of laughing; and he saw Francois, swinging an axe, spring into the mess of dogs. Three men with clubs were helping him to scatter them. It did not take long. Two minutes later the last of the dogs was chased away. But Curly lay dead in the snow, her body torn almost to pieces. Curly's death often came back to Buck in his dreams. He understood that once a dog was down on the ground, he was dead. He also remembered Spitz laughing, and from that moment he hated him.

    Before he had recovered from the shock caused by the death of Curly, he received another surprise. Francois put a harness on him. Buck had seen harnesses on horses, and now he was made to work like a horse, pulling Francois on a sledge into the forest and returning with wood for the fire. Though his dignity was deeply hurt by becoming a work animal, he was too wise to rebel(反抗). It was all new and strange, but Buck did his best. Buck learned easily and under the combined teaching of Francois and his two mates, Dave and Spitz, two experienced sled dogs, he made remarkable progress. Before they returned to camp he knew enough to stop at "ho," to go ahead at "mush," to swing wide on the bends, and to stay clear when the heavy came shot downhill.

"Those three are very good dogs," Francois told Perrault. "That Buck pulls very well, and he's learning quickly."

    Perrault had important letters and official papers to take to Dawson City, so that afternoon he bought two more dogs, two brothers called Billee and Joe. Billee was very friendly, but Joe was the opposite. In the evening Perrault bought one more dog, an old dog with one eye. His name was Solleks, which means The Angry One. Like Dave, he made no friends; all he wanted was to be alone.

    That night Buck discovered another problem. Where was he going to sleep? Francois and Perrault were in their tent, but when he went in, they shouted angrily and threw things at him. Outside it was very cold and windy. He lay down in the snow, but he was too cold to sleep.

    He walked around the tents trying to find the other dogs. But, to his surprise, they had disappeared.

    He walked around Perrault's tent, very, very cold, wondering what to do. Suddenly, the snow under his feet fell in, and he felt something move. He jumped back, waiting for the attack, but heard only a friendly bark. There, in a warm hole under the snow, was Billee.

    So that was what you had to do. Buck chose a place, dug himself a hole and in a minute he was warm and asleep. He slept well, although his dreams were bad.

    A team of engineers at Harvard University in trying to create the first robotic fly. Designed to do what a fly does naturally, the tiny is the size of a fat housefly. Its mini wings allow it to stay in the air and perform controlled flight tasks.

    "The added difficulty with a project like this is that actually none of its components is off the shelf and so we have to develop them all on our own' said Robert Wood, a Harvard engineering professor.

    They engineered a series of systems to start and drive the robotic fly. "The seemingly simple system which just moves the wings has a number of interdependencies (相互依赖）on the individual components, each of which individually has to perform well, but then has to be matched well to everything it d connected to," said Wood.

    While this first robotic flyer is linked to a small, off-board power source, the goal is eventually to equip it with a built-in power source, so that it might someday perform data-gathering work at rescue sites, in farmers' fields or on the battlefield. "Basically it should be able to take off, land and fly around," he said.

    Wood says the design offers a new way to study flight mechanics and control at insect-scale. Yet, the power, sensing and computation technologies on board could have much broader applications." You can start thinking about using them to answer open scientific questions, you know, to study biology in ways that would be difficult with the animal, but using these robots instead" he said. "So there are a lot of technologies and open interesting scientific questions that are really what drives us on a day-to-day basis."

    Reading books and looking at pictures is great, but nothing facilitates (促进) learning like travel, especially for teenagers. Not only do they get to see a world beyond their neighborhood, they also get to experience it, feel it, taste it, hear it and better understand the world around them.

    After nearly four decades in the classroom and traveling the world, Phyllis Duvall Bailey knew this perhaps better than anyone else.

    Becoming involved in the work in AKA Sorority Inc in US, she worked to educate children about the United Nations. There was no doubt in Bailey's mind that the lessons would mean so much more if the students could see things for themselves.

    Starting in 2015, Bailey, 82, set out to take her students to the UN Headquarters in New York City to give them a "Window Seat to the World", and thus transformed them into global citizens.

    Indeed, it is a great opportunity to give students national and international exposure. Since Bailey saw the students as future leaders, she was desperate to expose them to the UN, its mission, its agendas (议程) and its supporting organizations.

    She decided to give $10, 000 of her own money to pay for the late June trip, enough to take 10 students aged 14-17 on a four-night stay in New York. There, they had guided tours of the UN Headquarters and the New York City Harbor (海港).

    It was Quenyaun Payne's first trip to the city and Taylor Sappington's second. Payne, 17, is a senior at Mceachem High School in the state of Georgia, US. Sappington, 15, is a junior at Therrell High School in Atlanta, Georgia, US. Both said their visit to the UN was inspiring.

    "I like not only how countries are working together but they're focused on common goals like global warming and keeping peace," Sappington said.

Payne commented, "The trip was amazing. I'm so thankful Mrs. Bailey made it possible."

    Actually, there are a lot of people grateful for the retired teacher's effort. The United Nations Association of Atlanta recently gave Bailey its Humanitarian Award, and the United Nations Association of the US-awarded her with the National Education Award.

    But Bailey wasn't looking for recognition or even gratitude. Over those four days in New York, she'd already felt it and seen it in the eyes of those 10 teenagers, Payne and Sappington included, who made the trip.

    "It has been a real joy to get to see and watch their reaction to new experiences," she said.