08年和09年的四级作文.doc

Recreational ActivitiesIn the era of information and technology, there are all kinds of recreational activities. Some people think those recreational activities are great and necessary, because they can help people relax from the hard work and study. Some of the activities, such as hiking, jogging, can help people relax physically; while some of them, such as surfing the Internet, can help people relax mentally.However, some people think that so many kinds of recreational activities may have a bad effect on our lives. Some people may not resist some temptations from those activities, and indulge themselves in those activities. At last they are lured away from their study or their work.In my opinion, we should pay more attention to the advantages of various recreational activities and make the most of them. Meanwhile, we should learn how to use those activities positively, and make them a helpful tool for our development.Disposable Plastic BagsNowadays we may find ourselves surrounded by a sea of disposable plastic bags. And recently the problems of using disposable plastic bags have been brought into peoples focus.First of all, the use of disposable plastic bags causes irreversible harm to our environment. As these bags are not biodegradable, they are blocking the drainage system and causing water pollution.Whats more, customers using disposable plastic bags may think that they are of great convenience. But what they dont quite realize is that there will be remarkable negative impact on our health. And sometimes careless disposal of these bags may even poison some innocent animals.In view of the severity of this issue, effective measures have been taken in our country. There has been a strict limit on the using of disposable plastic bags in supermarkets, which not only enhances peoples awareness on environmental protection but also cuts down the cost of the running of supermarkets.Free Admission to Museums?owadays, a lot of museums open to the public for free, and a lot of people are attracted to go there. However, it also brought some unexpected problems.At present, people can get knowledge from many ways like libraries, internet, and other sources. However, there is also much information that people cannot get from the above ways. Free admission museums supply more chances for the public to get knowledge that cannot be easily accessed. People can learn more things about history, art, science and so on. Although, this kind of policy brought much convenience to the public, it also caused some problems. For example, beggars and shabby-dressed people may enter the museums and cause bad reputation among the public; along with the increasing number of people getting into museums, there will be no enough service establishments to meet the requirements; besides, under the policy of free admission, the cultural relics displayed there may be inevitably broken or damaged by the crowds. Moreover, the crowds in the museums may also cause security problems.In my opinion, free admission is a good policy for the public, and it brings the public much convenience. But, we should also take possible measures to protect the cultural relics and maintain the order of spot. Besides,