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The bar chart shows the general trend of university students whotake parttime jobs at different stages during their college life.Seeing from the chart,more than half of the college students,about 66.77%take a parttime job at their first year.And the proportion increases slightly year by year,til the last year,the proportion reaches the maximal number,surging to 88.24%.There are basically three reasons behind this trend.To begin with,most students are eager to take a parttime job in the purpose of earning some money,which can ease their parents'burden.Besides,they can acquire more experience before officially entering the society.And with more experience,they can easily get a job compared to those who do not have any experience.Finally,they can not only turn what they have learnt into the application,but also learn more which they cannot obtain from their books.In my view,getting a parttime job is a good practice.However,the major task of students is still the study.They should make a balance between their academic life and their working life.

This bar chart shows the market shares of three different types of brandcars in domestic automobile market between 2008 and 2009.In 2008,Japanese brands cars took the lead in the automobile market,accounting for 35%,followed by Chinese brand cars,with 25%marketshares.American brand cars fell behind,with mere 12%market shares.In2009,Chinese brand cars saw a mild increase in their market shares,whichcame to 33%,while Japanese brand cars lost a lots of their market shares,taking up only 25%.American brand cars stayed almost the same position,occupying 13%market shares.It could be concluded that more and more people choose to buy Chinesecars instead of buying the foreign brands cars.In the past,Japanese carsdominated the Chinese car market because of the comparably low priceand low oil consumption.While,as our Chinese car industry has grown tobe maturer and maturer.We could also produce cars with highperformance,low price,and beautiful look.However,it cannot beneglected that the gap is not so obvious and if Chinese brand automakerswant to make a big difference,they have to make more efforts.

This bar chart shows mobilephone subscriptions in developing countries and developed countries,measured in billions,for the years 2000 to 2008.The mobilephone subscriptions in both developing countries and developed countries enjoyed increase in different speed over time.In this chart,the mobilephone subscription in developed countries maintained a continual and steady increase from 2000 to 2007 and remained constant in 2008.Meanwhile,the mobilephone subscription in developing countries have undergone a slow increase from 2000 to 2004 and then saw a great surge from 2005 to 2007.This trend increased to a peak about 4 billion in 2008.Based on different national situations,the reasons leading to this trend can be summarized into two points.First,the developed countries have a limited number of population,which decides that the demand for mobilephone service is also limited and will soon be saturated.Second,as for the developing countries,it has a large population and also a large demand for mobilephone service.And as the mobilephone becomes more available and more affordable,there is an increasing number of people buying their mobilephones.In my view,this trend that the number of mobilephone subscription continues to grow in developing countries will be constant for a while in the future.And this trend would also benefit most of the mobile users both in the developing countries and developed countries.

This table ilustrates the difference of degree of satisfaction among employees at different ages in some company.In general,the overall trend of the degree of satisfaction is different with the variation of ages.Of those who feel satisfactory about their jobs,those beyond 50 years old take up the majority,accounting for 40%,followed by those who are no more than 40 years old,which take up 16.7%.Those between 41 to 50 years old have the lowest satisfactory rate,merely0.0%.Of those who feel dissatisfactory about their jobs,those between 41 to 50 years old take up the majority,accounting for 64.0%,followed by those less than 40 years old,which take up 33.3%.Those who beyond 50years old enjoy the lowest dissatisfactory rate,taking up only 10%.Besides,there are still 50.0%of less than 40 years old employees,36.0%of those between 41 to 50 years old and 50.0%of over 50 years old employees remaining uncertain about the degree of satisfaction.The contributory factors to this result can mainly divide into three parts.Firstly,those less than 40 years old are ambitious,impractical and eager to find their places in work.With those characteristics,they often get upset find their places in work.With those characteristics,they often get upset when they fail to fulfill their goals.Secondly,those between 41 to 50 years old employees,confronted with challenges posed by their young colleagues,often face a great deal of working competition and pressure.Lastly,with their impending retirement,those beyond 50 years old face relatively small working pressure and feel satisfactory about their jobs.From this table,we can make a conclusion that if the companies want to raise the degree of satisfaction of its employees,it should make more efforts to improve the working environment,ameliorate the welfare and establish the effective incentive mechanism.