There have been a lot of ways of acquiring knowledge. And the number is increasing unexpectedly owing to the popularization of modern mass media.
有很多获得知识的方法，而由于现代大众传媒的普及，(获取知识方法的)数量也在以意料之外的速度增长。
However, reading books has always been the major and convenient approach to knowledge. One may acquire most of his knowledge through reading books, since they can be carried easily and read leisurely everywhere at any time. Another equally important means of acquiring knowledge is through practice, especially learning from others. It is unlikely for a person to get all-round knowledge by merely reading books. As a matter of fact, genuine knowledge comes from practice.
Although books and practice are indispensable to the enrichment of one’s knowledge, other means shouldn’t be turned aside. With the development of IT industry, people tend to hunt for knowledge by means of Internet. Internet is changing people’s traditional approaches to knowledge. It has found its way into every field of the world.
Many years ago, credit card was believed to be the great improvement to facilitate people’s life, since then, people didn’t have to carry the paper money at hand, a card could pay the bill. Nowadays, with the development of technology, a more convenient way has been invented. There are all kinds of APPs in China, people can shopping online, order the food and do all kinds of business, the most important thing is that they can pay money just to click the button. In the big cities, you don’t need to take money at hand, a smart phone can solve all the problems. When you buy things, you can take out your phone and then scan the two-dimension code, the bill is paid. The foreign media reported the convenient way and they were astonished by China’s change. In the future, more Apps will be invented.
I was used to do things by my own, because I did not like to cooperate with other person, for I thought it was so easy and quick for me to finish the job. But since I went to high school, I thought I could not do things on my own any more, I needed someone else’s help. Take the biology homework for example. The teacher asked us to do some researches and then handed in the conclusion in the next class. It took me some time to finish the research, what’s more, I did not have enough time to do all the researches, so if I cooperated with other students, we could share our researches and then made the overall conclusion. It not only saved my time, but also helped me to promote the communication with my classmate. Cooperation has the great power.
Recently, it has been reported that a college student went to Guangzhou for travel, but she missed, finally, the policeman found her body. It is so terrible, this incident warns people to protect themselves, especially for the girls. First, we’d better travel with friends. Traveling alone is very popular among the young people, because they are independent and chase for freedom, so they like to go without friends. Then they are easily becoming the gangster’s targets. Therefore, having someone accompany not only can share the opinion, but also can be safe. Second, it is better not to go to the place which is dark and less people. The bad guys like to choose this place because they will not be noticed and are easy to do the criminal things. We need to learn to protect ourselves, life is precious.
It is very important to deal with the rubbish in cities. For one thing, rubbish may cause a lot of pollution. It may pollute the air, the water and the places we live in. For another, it may do harm to people's health.
So in our city, rubbish is well dealt with. First, it is sorted. Then old newspapers and glass are recycled. The harmful wastes are buried and the waste water is cleaned before it goes into the river. The government has already made laws against pollution caused by rubbish.
关于雷锋日的黑板报：社区学雷锋活动计划 
