雅思考试技能get：数据类小作文Line graph写作技巧
雅思数据类小作文主要包括：
Pie chart 饼状图
Line graph 线形图
Bar chart 柱状图
Table 表格图
Combination 混合图表
本文主要分析Line graph数据类小作文的写作技巧
Line graph
Line graph写作词汇：
Line graph常用词汇：
横轴，纵轴：horizontal axis横轴, vertical axis 纵轴
总体趋势：general trend
底部：reach a low point． reach the bottom．reach the rock．hit a trough; hit a historic low；trough n．(曲线上的)最小值； record low历史低点
顶部：reach a peak．peak， reach the highest point／the top/the summit．peak in／at；record high历史高度
反弹 rebound; turn the corner; recover/recovery; pick up
不变：flatten out．Plateau，level off．remain stable．stay at the same level．constant，stagnate．steady，
stabilize． there is little／hardly/any／no change
翻了一番 double 翻了两番 triple/ three fold, three fold increase
波动：fluctuate (around), a fluctuation in (display /demonstrate a fluctuation)
幅度：considerable adj．相当多的，constant adj. 不变的，remarkable adj. 明显的，相当的
Line graph 常用句型：
1.开头概述常用套句
1)As we can see from the graph/ As can be seen from the line chart, the two curves show the fluctuation of … over the period from…to…
从图中可以看出，这两条曲线展示了从。。。到。。。。的。。。方面的变化
2)The line chart depicts the changes in the number of…over the period from 2000 to 2004．
该曲线图描述了从2000年到2004年……数量的变化。
3)The graph, presented in the curve diagram, shows the general trend in…
该图以曲线图的形式描述了……总的趋势。
4)This is a line chart showing…
这是一个曲线图，描述了……
2. 描述曲线常用套句
1)The…in the graph is measured in units, each of which is equivalent to…
图表中的……以……为单位，每单位等于……
2) The horizontal axis stands for…
横轴代表了……
3)The vertical axis stands for… remarkably
纵轴代表了……
4)There was a (rapid/ dramatical/drastic/sharp/great/remarkable/ slight/little/slow) increase/ rise/ decrease/ drop/ fall/decline of A over the period from…to…
从……到……期间A有快速/急遽/剧烈/急速/很大/明显/很小/几乎没有/缓慢地增长/下降。
5) The curve appeared to level off in 1988．
曲线似乎在1988年稳定下来。
6)The situation reached a peak/a high(point)at…in 2000．
这种情况在2000年到达一个顶点，为……
7) The situation fell down to/reached the bottom in 2000．
这种情况在2000年降到低谷。
8)The figures hit a trough in 2000．
这些数字2000年降到最低点。
写作题目：
The graph below shows electricity production (in terawatt hours) in France between 1980 and 2012.
Writing analysis：
Step 1：读题目The graph below shows electricity production (in terawatt hours) in France between 1980 and 2012. 然后读electricity production in France by source (TW-h). 看到横坐标是年份，纵坐标是发电量，4条线分别为thermal/nuclear/hydroelectric/renewables. 将这些信息融合到一起，去改写题目原句。（如何写好开头段，我们之后会有分享）
Step 2：我们稍微把头抬起来一点，看图表中非常明显的大趋势和大特征（注意要忽略具体时间点和数量），比如nuclear线一直上升，已经成了大来源。thermal和hydroelectric有波动，但始终处于二三位。而renewables至始至终都是低。将这些概括信息写入概述段。
Step 3：以1980年作为起始点，2012年作为终点，将每根线的重要细节都标注出来。比如1980年thermal是大的；nuclear和hydroelectric差不多；renewables几乎为0；1981年nuclear赶超成为并在2005年达到峰值，而thermal却在一波儿下降后一直计划持低位震荡；hydroelectric在整个阶段都计划持较为平稳的一个状态；renewables在2012年达到高点等等。这里我们要注意，细节信息和数据是非常多的，我们必须要做选择，这个我们会在后续的推送中介绍方法。挑选好重要信息，我们就可以大致将其分成两部分去写两个描述段。
Step 4：对写好的文章进行细致的检查，包括字数、拼写、标点、时态、数据、词语重复等等
Sample Answer：
The line graph compares the amount of electricity produced in France using four different sources of power over a period of 32 years.
It is clear that nuclear power was by far the most important means of electricity generation over the period shown. Renewables provided the lowest amount of electricity in each year.
In 1980, thermal power stations were the main source of electricity in France, generating around 120 terawatt hours of power. Nuclear and hydroelectric power stations produced just under 75 terawatt hours of electricity each, and renewables provided a negligible amount. Just one year later, nuclear power overtook thermal power as the primary source of electricity.
Between 1980 and 2005, electricity production from nuclear power rose dramatically to a peak of 430 terawatt hours. By contrast, the fifigure for thermal power fell to only 50 terawatt hours in 1985, and remained at this level for the rest of the period. Hydroelectric power generation remained relatively stable, at between 50 and 80 terawatt hours, for the whole 32-year period, but renewable electricity production saw only a small rise to approximately 25 terawatt hours by 2012.