changes in people‘s diet
as can be seen in the table， there have been great changes in people‘s diet in the past five years. grain used to be the chinese main food， but now it is playing a less important role in people?s diet， while the consumption of some high?energy foods， such as milk and meat， has increased steadily.
what caused these changes? i think the reasons are as follows: first,the open policy brings the people opportunities to earn a lot of money.second,people nowadays pay more attention to the structure of their diet.they are seeking the most reasonable diet structure, which will do good to their health.
from the above， we can see that，with the development of the country，the level of the chinese people‘s life has changed in the past five years.i’m sure there will be greater changes in the future.
文中第壹句話就明確告訴讀者這篇作文是壹篇圖表作文。接下來根據圖表分析了在過去的五年中人們的飲食結構都發生了哪些變化，最後預測將來人們的生活水平還會發生更大的變化。盡管在這張圖表中有很多數據，但作者並沒有過多地引用這些數據，而是通過數據把要說明的問題點了出來。
[例2]directions： for this part，you are allowed 30 minutes to write a composition of no less than 100 words on income sources between chinese and american students.study the following table carefully and your composition must be based on the in formation given in the table. write three paragraphs to：
1. describe the differences of the income sources between chinese and american students.
2. analyze possible reasons for these differences.
3. predicate future tendency.
[範文]
income sources between chinese students and american students
income sources of chinese students are quite different from those of american students. in china, students get 90% of their money from their parents while in america, only 50% of students` money is provided by parents. in addition, chinese students earn only 5% of their money from part time jobs and 5% from fellowship or scholarship while income from these two resources for american students takes up 35% and 15% respectively of their total income.
i think there are probably three reasons for their differences. first， because of the influence of different social and family values，chinese students have formed the habit of asking for money from their parents while american students have developed more sense of being financially independent. second， most chinese parents devote too much care to their children and they would rather save up to afford their children?s education rather than encourage them to take part?time jobs.but in america， many parents pay more attention to developing the students? ability of self?reliance，so they encourage their children to find part?time job to earn some money by themselves. third， since america is more developed than china，it is relatively easy for students to find part?time jobs.in china，such opportunities are rather rare.
i believe with the development of china， more and more chinese students will realize and pay more attention to the necessity of self?dependence. in addition， more and more opportunities will be provided for them to take part?time jobs. so more students will go out of the ivory tower to broaden their knowledge and to become the master of their own lives.
作者在這篇圖表作文中很好地利用了圖表以及題目中所給的提示，文章結構完整，意思表達清楚，較好地完成了壹篇圖表作文所應該表達的內容。
第五節命題作文
命題作文要求就所給的作文題目進行寫作。與其他作文相比，命題作文具有較大的自主性。因為同樣的壹個題目可以從不同的角度、用不同的文體來進行寫作。例如“my teacher”這個題目可以寫成壹篇記敘文，也可以寫成壹篇描寫文。不管用什麽文體，也不管從哪個方面來寫，只要寫出的文章切題、流暢、條理清楚、語言正確就是壹篇好文章。然而，這種較大的自主性也會使考生感到困難。因為在有限的30分鐘之內，要形成提綱，並寫成短文並不是件易事。這就要求考生在寫命題作文時首先壹定要審好題，要仔細分析題意，搞清楚題目所涉及的範圍，確定文章的中心思想，切忌跑題。再者，要選擇正確的文體。最後，要圍繞文章的中心思想，將寫作素材進行分析、歸類並寫好寫作提綱，包括：引言句、主題句和結尾句。