There are more bicycles than residents in the Netherlands,and in cities

like Amsterdam and The Hague up to 70% of all journeys are made by bike.

    The BBC's reporter,Anna Holligan,examines what made everyone get back in the saddle（车座）.

    Before World WarⅡ,journeys in the Netherlands were mainly made by bike, but in the 1950s and 1960s,as car ownership increased quickly,this changed.As in many countries in Europe, roads became increasingly crowded.

    The jump in car number caused a huge rise in the number of deaths on the roads.In 1971 more than 3,000 people were killed by motor vehicles,and 450 of them were children.In response a social movement demanding safer cycling conditions for children was formed.Called Stop de Kindermoord,it took its name from the headline of an article written by journalist Vic Langenhoff whose own child had been killed in a road accident.

    The Dutch love of the motor vehicle was also shaken by the Middle East oil crisis of 1973,when oil-producing countries topped export to the US and Western Europe.

    These twin pressures helped to persuade the Dutch government to invest in improving cycling infrastructure（基础设施）and the Dutch urban planners started to change from the road-building policies designed mainly for cars.

    To make cycling safer and more inviting,the Dutch have built a vast network of cycle paths.These are clearly marked,have smooth surfaces,separate signs and lights for those on two wheels,and are wide enough to allow cycling side by side and overtaking.

    Even before they can walk,Dutch children live in a world of cycling.As babies they travel in special seats on bikes.As the children grow up they ride their own bikes.And,as the Dutch are not allowed to drive until 18,cycling offers teenagers an alternative form of freedom.

    The state also plays a part in teaching,with cycling lessons a compulsory（必修的）part in Dutch schools.All schools have places to park bikes and at some schools 90% of pupils cycle to class.

    Some students prefer a part­time job after class to earn some money and improve their working and communication abilities. Here are some good companies for you to choose.

    In­N­Out Burger

    It's the best hamburger shop in the west of America. Thought as one of the best employers, it offers flexible working hours and the highest starting part­time salaries (薪水). Above all, the company treats its workers the way they would like to be treated: like family.

    Position: selling assistant (experience required)

    Website：www.in­n­out.com

    Starbucks Coffee

    Starbucks has been a leader of the United States' coffee. Working hours are flexible. There is also a 30% discount and a free pound of coffee or box of tea every week.

    Position: coffee waiter (experience required)

    Website: www.starbucks.com

    Whole Foods Market

    Whole Foods Market is the world's largest natural and organic food selling company. With its focus on organic food, Whole Foods Market is all about health. Working hours are not fixed. You can get a 20% discount. There are also training courses on health and food every week.

    Position: secretary

    Website: www.wholefoodsmarket.com

    Lands' End

    Lands' End is a Wisconsin­based clothing retailer(零售商). Working hours can be changed easily to suit any new situation. Workers (even part­time workers) have the chance to go to a company­owned centre and get a 25% discount, and an invitation to the yearly company picnic.

    Position: salesman

    Website: www.landsend.com

    Have you ever heard of the Coral Sea? It is home to an amazing variety of turtles, sharks, whales, dolphins, large fish, birds, corals, plants, and many other species. Many of these species are endangered elsewhere in the world, but still survive in the healthy environment of the Coral Sea.

    The Coral Sea is a large series of coral reefs located off the northeast coast of Australia. This area is three times larger than Australia's famous Great Barrier Reef, which the Coral Sea borders.

    The Coral Sea is one of the few coral reef environments that have remained largely undamaged by over-fishing, oil and gas exploration and pollution. However, statistics show that coral reefs around the world are disappearing five times faster than rainforests. It is very likely that in the near future the Coral Sea will face the same threats to its existence.

    The Australian government is currently looking at options for protecting the Coral Sea but has made no decisions. Environmentalists are pushing for laws to declare the Coral Sea area a marine protected area, which will mean a large “no-take zone” for fishermen, a no-exploration zone for gas and oil companies and a no-dump zone for pollution, possibly making the Coral Sea a marine park larger than any other in the world.

    We can write letters to Australian leaders, Australian environmental protection agencies, and Australian friends, to let them know that people worldwide support this protection of the Coral Sea. To lose this last great marine wilderness world would be a loss for the whole world.

    Mary went out at night. She never forgot the night when she met a robber many years ago. That evening, she was invited to a birthday party which lasted until two o'clock in the morning. Without company Mary walked along the quiet street.

    Suddenly from the shadow of a dark building a tall man with a sharp knife in his right hand ran out at her. "Good evening, lady," the man said in a low voice, "I don't think you wish to die here."

    "What do you want?" Mary asked.

    "Your earrings（耳环）. Take them off!"Slowly Mary's eyes looked down. She tried to cover her necklace with the collar（领子）of her overcoat while she used the other hand to take off both of her earrings, and then she quickly threw them on the ground.

    "Take them and let me go." She said. The robber looked at her only feeling uncertain. He saw the girl didn't care for the earrings at all, only trying to protect the necklace. He realized the necklace would cost more. So he said, "Give me your necklace."

    "Oh, sir. It's not worth much. Please let me keep it."

    "Stop rubbish. Quick!"

    With shaky hands, Mary took off her necklace. As soon as the robber disappeared, she picked up her earrings and ran as fast as she could to one of her friends.

    The earrings cost 480 pounds and the necklace the robber had taken away cost only six pounds ten shillings.

    As the weather gets colder, we start wearing jackets, and most of us stop thinking about the sun. But the sun's rays can be just as harmful when it's cold and cloudy outside. "Any exposed area of your body can still get sunburned," Dr. Apple Bodemer, an associate professor at the University of Wisconsin-Madison, told Live Science.

    Whether you spend a day on the slopes, skating on a pond or clearing snow out of your driveway, your face is still getting exposed to the sun's radiation in the form of ultraviolet (紫外线) (UV) light, which can go deep into your skin cells causing DNA damage, according to Bodemer.

    The sun's long ultraviolet A (UVA) waves can cause earlier aging, sunspots and wrinkles, while its short ultraviolet B (UVB) rays are known for causing skin reddening and burns.

    Skin damage caused by UV exposure increases over time. More exposure to radiation contributes to more severe damage, even skin cancer. In addition, snow and ice can also make sun damage worse. They reflect up to 80 percent of UV rays reaching the ground. That means you get hit from both the sky and the ground. And skiers and snowboarders increase their risk of getting sunburned even more because UV exposure increases at higher altitudes.

    "Generally, the biggest factor for sun-sensitivity is how pale your skin is," he said. "But, the reality is that even the darkest individual can get sun damage."

    Luckily, the solution for protecting your skin is simple: Wear sunscreen every day. Rigel recommended using sunscreen with a sun protection factor (SPF) of at least 30, and going higher at high altitudes. As a rule of thumb, SPF 30 will block 97 percent of UVB rays, SPF 50 blocking 98 percent, and SPF 100 blocking 99 percent. Whatever kind of sunscreen you use, it's important to apply SPF about once every 2 hours.

    Rigel also suggested sunscreens with "broad spectrum (光谱)"—to protect against both UVB and UVA rays—as well as sunscreens that are water resistant for up to 80 minutes. That way, you can go about your day without it wearing off too quickly.

    Facebook says it is working on technology to allow us to control computers directly with our brains. It is developing "silent speech "software to allow people to type at a rate of 100 words per minute, it says. The project, in its early stages, will require new technology to detect brainwaves without needing invasive operation. "We are not talking about monitoring your random thoughts," assured Facebook's Regina Dugan. "You have many thoughts, and you choose to share some of them. We're talking about monitoring those words. A silent speech interface（界面）-one with all the speed and flexibility（灵活）of voice. "

    Ms Dugan is the company's head of Building 8, the firm's hardware research lab. The company said it intends to build both the hardware and software to achieve its goal, and has employed a team of more than 60 scientists and academics to work on the project.

    On his Facebook page, Mark Zuckerberg added, "Our brains produce enough data to stream four HD（高清）movies every second. The problem is that the best way we have to get information out into the world-speech-can only send about the same amount of data as a 1980s modem. We're working on a system that will let you type straight from your brain about five times faster than you can type on your phone today. Finally, we want to turn it into a wearable technology that can be produced in quantity. "

    Technology is going to have to get a lot more advanced before we can share a pure thought or feeling. but this is a first step. Other ideas detailed at the company's developers conference in San Jose included work to allow people to "hear" through skin. The system, comparable to Braille, uses pressure points on the skin to pass information. "One day, not so far away, it may be possible for me to think in Chinese, and you to feel it instantly in Spanish,"Ms Dugan said.