Unit 13（课件）- 《实用商务英语写作》同步教学（东南大学版·2017）

Unit 13 Graph and Chart Tasks 1. Introduction 2. Categorization 3. Principles 4. Samples 5. Exercises 6. Case study Introduction A graph or chart is a kind of visual design to explain or illustrate something. It is used in business and economics to make the readers easily understand large quantities of data and the relationship between different parts of the data. It is also used to supplement text to help readers in understanding of particular concept. It may present information quickly and directly, and make the concept more clear or interesting. Categorization 1) Pie chart 2) Bar chart 3) Line chart 4) Flow chart 5) Organization chart 1) Pie chart It is used to represent values of variables. It is displayed in circles that are divided into segments reflecting the proportion of the variables. Percentage is used to compare the segments, with the whole being equal to 100%. It is also advisable to write percentage and category label next to each segment. 2) Bar chart Bar chart, also called bar graph, is used to present and compare data. There are two types of bar chart: horizontal bar chart and vertical bar chart. A bar chart consists of several rectangular bars with length or height proportional to the value that they represent. In a horizontal bar chart, value is represented by the length of the bar as measured by the x-axis, and category labels are displayed on the y-axis. In a vertical bar chart, the categories appear on the x-axis, and the height of bar corresponds to the value of each category. 3) Line chart A line chart displays a series of data points connected by straight line segments. It shows how some particular data change at equal interval of time. The value of data is represented by the height of the point as measured by the y-axis, and category labels are displayed on the x-axis. 4) Flow chart A flow chart represents the workflow of an organization. It is used to design and analyze complex process or program. It shows