How often do you use your car? Can you use your car less often? Do you know the following facts in the UK?
·About 50% of all car journeys are just for fun.
·Over 80% people go to work by car.
·25% car journeys are under two miles.
·70% car journeys are under five miles.
WALKING & CYCLING

Instead of using the car for short journeys, why not walk or ride a bicycle? Walking is the most popular form of exercise—it's healthy and it can save money. If you work nearby, try walking or cycling instead of driving. Walking your children to school gives them valuable road experience.
BUSES

Bus companies are using new buses: some run on new fuelswhich produce less pollution; some have easier access（通路）for disabled and old people. There are special traffic lanes (行车道)to make bus journeys easier. So do something to help solve the pollution problem—-let the bus take you to work and your children to school.
TRAINS

All car journeys, long or short, can be hard work. For some trips, it is wiser to take the train. Leave your car at home and walk, cycle or take a bus to and from the station. Train travel is fast, safe and comfortable. Train tickets are not always expensive.

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    ChaiJing, who worked for China Central Television (CCTV) from 2001 to 2013 as a TV reporter made a documentary(纪录片) named under the Dome （穹顶之下）to educate the public about smog. It is released（发行）online on March 1^st, 2015.

    In the opening of the documentary, Chai tells the story of her daughter with a begin tumor （良性肿瘤）before her birth. “ I couldn't help worrying while seeing the polluted sky in Beijing,” she says. She only took her daughter outside when the air in Beijing was good. The rest of the time she had to keep her at home like a “prisoner（囚犯）”. And there were175 polluted days in 2014 in Beijing.

    In the  documentary, Chai had an interview with a six-year-old girl, WangHuiqin, who live in Shanxi Province, a heavily polluted area in China. The girl told Chai that she had never seen stars, blue skies or white clouds in her village.

    Chai also went to London and Los Angeles, which had both suffered air pollution in the past, to learn how they had improved their environment.

    Chai spent one year making this 103-minute film, which cost her over 1 million yuan. In the documentary, Chai tries to answer three questions. They are “ What is smog”, “ Where does it come from?” and “What should people do?” And she calls on everyone to get into the fight against smog.

    In recent years, there have been many breakthroughs in the AI (人工智能) field. Here, let us see four of the most interesting developments in AI in 2017.

    Thousands of years ago. in the south of ancient China, there lived Shennong, a man who had an ox(牛) head and human body. Seeing that local people were suffering from disease, he built ladders and houses on a high mountain to store hundreds of medical plants. To remember him, people named the place Shennongjia.

    The legend(传说) makes Shennongjia in Hubei an inviting place for tourists. Travelling there is a unique experience, as you can see sceneries of the four seasons from different altitudes. “When the bottom of the mountain is summer, the top is spring and while the foothill is autumn, the top is covered with ice," local people say of the special climate of Shennongjia.

    Shennongjia is also home to 5, 000 species of animals and plants. Many animals in danger live there, such as the golden monkey, the clouded leopard and the Asian black bear.

    One interesting and mysterious thing about Shennongjia is its legend of wild men. Some people once claimed that they saw big footprints or big-foot creatures. Yet so far, scientists haven't proved it is true and some say they are just bears.

    The beautiful place has recently received a new title. On July 17, 2016, Shennongjia Forestry District was added to United Nations World Heritage list as a natural site. China now has 52 world heritage sites(遗址)，second only to Italy in the world.