Bicycle Safety

    Operation Always ride your bike in a safe, controlled manner on campus(校园). Obey rules and regulations. Watch out for walkers and other bicyclists, and always use your lights in dark conditions.

    Theft Prevention Always securely lock your bicycle to a bicycle rack — even if you are only away for a minute. Register your bike with the University Department of Public Safety. It's fast, easy, and free. Registration permanently records your serial number, which is useful in the possible recovery of the bike stolen.

Equipment

    Brakes Make sure that they are in good working order and     adjusted properly.

    Helmet A necessity, make sure your helmet meets current safety standards and fits properly.

    Lights Always have a front headlight — visible at least 500 feet in front of the bike. A taillight is a good idea.

Rules of the Road

    Riding on Campus As a bicycle rider, you have a responsibility to ride only on streets and posted bicycle paths. Riding on sidewalks or other walkways can lead to a fine. The speed limit for bicycles on campus is 15 mph, unless otherwise posted. Always give the right of way to walkers. If you are involved in an accident, you are required to offer appropriate aid, call the Department of Public Safety and remain at the scene until the officer lets you go.

    Bicycle Parking Only park in areas reserved for bikes. Trees, handrails, hallways, and sign posts are not for bicycle parking, and parking in such spots can result in a fine.

If Things Go Wrong

    If you break the rules, you will be fined. Besides violating rules while riding bicycles on campus, you could be fined for:

No bicycle registration  ………………..……………….…… $25

Bicycle parking banned   …………..…………………….……$30

Blocking path with bicycle   …………………………….……$40

Violation of bicycle equipment requirement  ……………....…$35

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    During the first decade of the 21st century, a popular and new word has come into our vocabulary. That word is Facebook. This is the most popular social networking website on the Internet. There are about 350 million active users on this website. The main idea of Facebook is that you can keep in touch with all your friends around the world who has Facebook. In the 350 million users on Facebook, 67% of them are between the ages of 13-25. More than 35 million users update their status every day. 2.5 billion Photos are added each month.

    The highest age groups who use Facebook are teenagers. Most of them keep the website running whenever they are using the computer and general teens nowadays are always on the computer, if they aren't in school or when they aren't asleep. I feel that teens should focus on their schoolwork or be socializing with their friends in person or exercising. Facebook is just changing the new generation of youngsters completely because the teenage life is one of the most important stages of life and wasting it on Facebook is not encouraging this in any way. It is also a complete distraction (分心) to their mind, for they would turn to Facebook just to check if there was anything updated among their friends.

    Remember back in the good old days, when teens would do their homework handwritten, play sports and hang out with friends. Today, most teens would only speak to their friends on Facebook, while we can see them battling obesity as they stare at their friend's message on their wall. In summary, teens don't have a life because they are on Facebook 24/7, except for those who don t use Facebook or occasionally do.

    Facebook is also where people can see the conflicts among their friends, virtual arguments, relationship status and updates, who is in whose 'top friends, and so on. You can join groups, post pictures and videos, play games, and invite friends to parties. Mainly, all this would just disturb people into living life to its fullest.

    Facial expressions carry meaning that is determined by situations and relationships. For example, in American culture the smile is in general an expression of pleasure. Yet it also has other uses. A woman's smile at a police officer does not carry the same meaning as the smile she gives to a young child. A smile may show love or politeness. It can also hide true feelings. It often causes confusion (困惑) across cultures. For example, many people in Russia consider smiling at strangers in public to be unusual and even improper. Yet many Americans smile freely at strangers in public places (although this is less common in big cities). Some Russians believe that Americans smile in the wrong places; some Americans believe that Russians don't smile enough. In Southeast Asian culture, a smile is frequently used to cover painful feelings. Vietnamese people may tell a sad story but end the story with a smile.

    Our faces show emotions (情感), but we should not try to "read" people from another culture as we would "read" someone from our own culture. The fact that members of one culture do not express their emotions as openly as members of another do does not mean that they do not experience emotions. Rather, there are cultural differences in the amount of facial expressions permitted. For example, in public and in formal situations many Japanese do not show their emotions as freely as Americans do. When with friends, Japanese and Americans seem to show their emotions similarly.

    It is difficult to make a general statement about Americans and facial expressiveness because of personal and cultural differences in the United States. People from certain cultural backgrounds in the United States seem to be more facially expressive than others. The key is to try not to judge people whose ways of showing emotion are different. If we judge according to our own cultural habits, we may make the mistake of "reading" the other person incorrectly.

    Sports can help you keep fit and get in touch with nature. However, whether you are on the mountains, in the waves, or on the grassland, you should be aware that your sport of choice might have great influence on the environment.

    Some sports are resource-hungry. Golf, as you may know, eats up not only large areas of countryside, but also tons of water. Besides, all sorts of chemicals and huge amounts of energy are used to keep its courses（球场）in good condition. This causes major environmental effects. For example, in the dry regions of Portugal and Spain, golf is often held responsible for serious water shortage in some local areas.

    There are many environment-friendly sports. Power walking is one of them that you could take up today. You don't need any special equipment except a good pair of shoes; and you don't have to worry about resources and your purse. Simple and free, power walking can also keep you fit. If you walk regularly, it will be good for your heart and bones. Experts say that 20 minutes of power walking daily can make you feel less anxious, sleep well and have better weight control.

    Whatever sport you take up, you can make it greener by using environment-friendly equipment and buying products made from recycled materials. But the final goal should be "green gyms". They are better replacements（代替物）for traditional health clubs and modern sports centers. Members of green gyms play sports outdoors, in the countryside or other open spaces. There is no special requirement for you to start your membership. And best of all, it's free.

    It began as a game: High school and college students studying computer technology figured out they could use personal computers to break into telephone company computers and make free, long-distance telephone calls. These young computer talents soon gained the name "hackers".

    Police arrested a few hackers, but many went on to even more complex hacking. One of them was arrested for making illegal telephone calls and later he used a phone to change a police officer's credit records to get back at the officer for arresting him. He also used a computer to change his college records to give himself better grades.

    As hackers gained experience, they began invading computers at banks, airlines and other businesses. In one case a hacker instructed an airline's computer to give him free airplane tickets.

    The U.S. government is worried that hackers may break into its networks of defense computers. The government's secrets are easily attacked because thousands of government computers are connected by telephone lines that hackers can get into.

    In November 1988, a college student entered a U.S. Defense Department computer network called Arpanet. The hacker injected a computer program that made copies of itself throughout Arpanet. Some hackers use viruses to destroy all the data in a computer. But in this case, government officials shut down the network before the program reached every computer in the system. Shutting down the system angered many researchers who were using the computers. The hacker turned himself in to the police and he was charged with a crime.

    The incident put the spotlight on computer hacking in the United States. Many companies have hired experts to protect their computers from hackers, and many computer experts now advise companies on how to protect their computers.

    The U.S. government believes foreign governments have hired hackers to try to break into top-secret defense computers.

    Experts disagree over whether a computer network can ever be safe from hacking. But in the future, some of the most outstanding minds in the U.S. will be working to frustrate the attempts of computer hackers.

    Over the next decade, technology will decimate more jobs in many professions.

    Some robots already cost less to operate than the salaries of the humans they replace, and they are getting cheaper. Boston Consulting Group predicts that, by 2025, the operating cost of a robot that does welding (焊接) will be less than $2 per hour, for example. That's more affordable than the $25 per hour that a human welder earns today in America.

    Uber and many other companies are working on developing cars and trucks that don't need a driver in the driver's seat. According to the American Trucking Associations, approximately 3 million truck drivers were employed in the United States in 2010, and 6. 8 million others were employed in other jobs relating to trucking activity. So roughly one of every 15 workers in the country is employed in the trucking business. We could be talking about millions of jobs disappearing in the early 2020s.

    And then there is the "Gig Economy (零工经济)" that has some businesses moving toward part-time, on-demand employment. Uber has already done this to taxi drivers, and other technology companies are doing it to a wide range of jobs. A study by Intuit predicted that, by 2020, 40% of American workers will be self-employed, and that full-time jobs will be harder to find. We are talking about 60 million people in this category. The problem is that not only do such part-time workers lack reliable full-time jobs and sick pay, but they can't enjoy health insurance and longer-term benefits.

    The measures to be taken are to raise trade barriers. But closing the doors to foreign trade won't bring jobs back. It will only slow the global economy and hurt American exports, shrinking the U. S. economy and accelerating job loss.