From these graphs, we can draw a conclusion that, with the growth of human population, the number of species has decreased rapidly in America, and some species have even vanished from our planet.
Why does this phenomenon appear? There are several possible reasons for this. Above all, as the human population grows rapidly, a growing number of people came to live where some wild species have been living. Then these species have to move to other places. Some of them probably can not adapt to the new environment and die. In addition, although many people look on the wildlife as their friends, some people may not think so. They catch a lot of wild animals and sell them in order to get more money. Even worse(坏)/More importantly(好), as the result(中性) /consequence(贬义)of the industry, the natural balance and the ecologic environment are destroyed. The clear cutting has become increasingly serious. So some of the wildlife become homeless and extinct.
In order to protect the wildlife, I have some suggestions. First, the governments should make laws to prevent them from being caught and killed. Second, the governments should educate people to love nature and protect it. Third, as for ourselves, we should take practical actions to protect our living environment.
the picture describes an increasingly common scenario in today's world. an employee quits her previous job and carries the company's confidential commercial information to her new position, which quite angers her former boss. meanwhile, the employee herself is ignorant of her misbehavior, but only indulges in the happiness of a better career development.
i would like to begin the discussion by relating the background of this phenomenon. as china has experienced, and is experiencing, a prosperous economic boom with numerous companiesmushrooming, people start to throw away the deep-rooted thought that one should keep a single job as a life-long pursuit. instead, job hopping has become as common as daily meals. a series of problems thus emerge, including how employees stick to their occupational discipline to keep secrets of different organizations. some people are offered a new position merely for the much intelligence they command, while others might reveal confidential information unconsciously. their behavior leads to unfair competition and damage the otherwise well-functioning economic order.
in my point of view, for one thing, all employees need to be instilled with honesty and loyalty. honesty records should be established to evaluate employees' credibility. for another, therefore should be interferences from relevant laws and regulations in order to chastise those whose telltale action results in great harm.
What is shown in the table above indicates that dramatic changes have taken place in the daily expenses in Xi' an from 1995 to 1999. The expenses on food have declined by 30% while those on clothing and recreation have increased respectively by 9% and 7%. The statistics of rise and fall seem to exist in isolation but closely related to one another.
There are two factors accounting for these changes. Development in economy is an essential one in the five years. The increased income resulting from economic growth plays an important part in the less expense on food. Hence, a small percentage of total income is enough to cover food expense. Another one is the changes in life style. When food presents no worry to the average, people begin to focus more of interest on handsome appearance and happy leisure time. As a result of such a shift, spending on clothing and recreation increased year after year.
From the analyses made above, we may come to the conclusion that people's living standards in Xi' an have been constantly improved between 1995 and 1999. With the further growth in economy and more changes in life style, the tendency indicated in the table will continue in the table will continue in the better direction.