Education pay
From the bar chart given above, we can observe that it reflects the statistics of income among people of different educational background. Those who possess a doctoral degree earn 1,551dollars median weekly, ranking first among people of other education level. The median weekly earnings of people with associate degree and below can not reach the average of 797 dollars, ranking from 768 dollars to 451 dollars. As for the unemployment rate, 2.5 % of people with doctoral degree will suffer form unemployment. However, the unemployment rate of people with some college, no degree and lower degree surpass the mean value of 7.6%， ranking from 8.7% to 14.1%。
  The bar chart of Education Pays reveals a phenomenon that there exits some difference in incomes and unemployment rate among people with different educational level. Quite a few reasons can account for this phenomenon: for one thing, with the advancement of technology and the adjustment of industrial structure, quite a few high-tech industries emerge overnight, which leads to a soar demand of workforces with high educational degree, thus, it i
s natural that graduates with bachelor’ and higher degree get a high pay-packet and enjoy a stable job. Additionally, those with educational background under associate degree are easily dismissed and paid by low salary. They can be replaced any time due to the fact that their jobs are easy and can be finished by average people。
四级英语作文模板  Definitely, the higher education degree you get, the more likely you are to enjoy a competitive edge in the employment market. Thus, the authorities should enforce some policies to ensure the equity of education. Only in this way can more people lead a stable and comfortable life。
Water of the 21st Century
    Life on earth depends  on  water,and there is no substitute for it. The current assumption is that our basic needs for water-whether for drinking, agriculture, industry or the raising of fish--will always have to be met. Given that premise, there are two basic routes we can go. more equitable access to water or more drastic engineering solutions.    Looking at the engineering solution first, a lot of my research concentrates on what happens to wetlands
when you build dams in river basins, particularly in Africa. The ecology of such areas is almost entirely driven by the seasonal change of the river--the pulse of the water. And the fact is that if you build a dam, you generally wreck the downstream ecology. In the past, such problems have been hidden by a lack of information. But in the next century, governments will have no excuse for their blissful ignorance.    The engineers ability to control water flows has created new kinds of unpredictability too. 'Dams in Africa have meant fewer fish, less grazing and less floodplain agriculture--none of which were anticipated. And their average economic life is assumed to be thirty years. Dams don't exist for ever, but what will replace them is not clear.    The key issue in any discussion of water is money. To talk about a water crisis hides intractable problems such as poverty.    Consider the problems of water supply in Mexico City or Delhi. If you' re rich, you drink mineral water and may even have a swimming-pool--yet millions in such cities can't get safe drinking water. People talk about the coming water crisis. I believe we have one now. It is a water crisis for the poor.
 
Social Network Sites
In recent years, social network sites like Renren and Kaixin have rapidly gained popularity among all kinds of people. Many people spend a lot of time on those sites chatting, making friends and playing games. Those sites have become a part of their life.
The public hold different views on this phenomenon. Some are in favor of those sites for they provide many opportunities to know other people and to know what’s happening in the world. Besides, they’re very convenient to access. One can use a computer or cell phone to log on at home, in a restaurant, or even in the subway. But some people don’t approve of the social network sites. They say that people are wasting too much time on the sites. Some even get addicted to them and abandon their real life. After all, they don’t live in the virtual world.
In my opinion, the social network sites can be very helpful when we want to keep in touch with friends, but we must remember that the real world is the most important in our life.
Social Network Sites
Social network websites have rapidly increased in popularity over the past few years. Many people have registered and become members of some social network websites, such as Facebook, Kaixin and Twitter. These websites have become a part of their daily life.
People’s opinions vary greatly on social network sites. Supporters regard social network websites as places to share feelings and experiences with their friends. Besides, they say these websites provide various interesting games and can help people relax. However, opponents think it is difficult to protect users’ privacy on social network sites. Apart from that, they maintain that users’ chances to gain employment may be reduced as more and more employers take the images which users portray on social network sites into consideration.
As far as I’m concerned, social network sites serve as a good platform for us to make new friends and keep in touch with old ones. Still, we should be aware of the potential dangers involved. It is very necessary to adjust our privacy settings to control who has access to our personal information.
                    The sense of happiness
The sense of happiness is of great significance. As a vital factor of life, it brings us power, arouses our enthusiasm for loving life, and helps us to create a promising future. However, in contemporary China, it has become a trend for Chinese people to hold different views about happiness and the way to enhance it.
In addition to material basis, the sense of happiness also refers to several others aspects. Firstly, based on a recent survey, a majority of individuals admit that they are no longer content with being fed and clothed adequately, and their happiness depends more on their success in careers, friendship and love. Secondly, a great many people claim that health is the key to their sense of happiness. It is health that enables them to build up a solid foundation for anything significant.