Noise pollution is doing much harm to our health now. Noise, in fact, is unwanted sound and is a kind of invisible (无形的) killer. More and more students enjoy listening to music very much. When they listen to MP3 players, they like to turn up the volume (音量). Some people love listening to loud music. Furthermore, while watching TV, they keep the volume up. But they haven't realized that the noise is weakening their hearing. In fact, the noise not only influences each member in the family, but also makes a difference to the comfort of neighbors.

Noise pollution is a source of increasing misery (痛苦) to people in our society. If people are often disturbed by it, they may feel uncomfortable or upset. What's worse, the noise can make people mad sometimes. If a worker works in a printing factory for too long, his/her hearing loss is much faster than a common person working in a quieter environment. So everybody must pay more attention to noise pollution. Generally speaking, the following four types of noise should be watched out for:

    ◆Noise in the street

    ◆Construction site (建筑工地) noise

    ◆Noise at work

    ◆Transportation noise

    I think the local department (部门) should take measures to control the noise levels, but it's everybody's duty to keep a quiet environment.

人类通过修建水库控制水循环各环节中的（    ）

根据拼音写出相应的词语。

    It is true that people with better education are usually able to get better jobs．In other words, they have more chances to choose a good job while people with little or no education don't．It seems that the purpose of education is to make people get jobs．But this isn't accepted by all people．

    Some people may think that a person should spend the best years of his life getting education only for a way of living．This was probably one of the earliest reasons of education．In fact, if education is just a way of making a living, people don't need to spend so much time in school．People can get education for a living in a short time．Subjects like History and Geography need not be taught to everyone．Even Language and Mathematics need not be taught in detail, either．Here it is clear that education is much more than teaching a man to get a way of living．

    Education is well-rounded and it is mainly for improving a man．It is not only to teach him to speak, read and write, but also to develop his creative thinking and other abilities．After that, it is to make him a wise man and thankfully enjoy the achievements of human．Education is to make a man lead a better life． Educated people are expected to be able to listen to good music, read good books, watch plays and most of all take an interest in the world．

    I would agree that making a good living is an important reason for education, but certainly not the most important or the main reason．