雅思數據類小作文主要包括：
Pie chart 餅狀圖
Line graph 線形圖
Bar chart 柱狀圖
Table 表格圖
Combination 混合圖表
本文主要分析Line graph數據類小作文的寫作技巧
Line graph
Line graph寫作詞彙：
Line graph常用詞彙：
橫軸，縱軸：horizontal axis橫軸, vertical axis 縱軸
總體趨勢：general trend
底部：reach a low point． reach the bottom．reach the rock．hit a trough; hit a historic low；trough n．(曲線上的)最小值； record low歷史低點
頂部：reach a peak．peak， reach the highest point／the top/the summit．peak in／at；record high歷史高度
反彈 rebound; turn the corner; recover/recovery; pick up
不變：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 翻了兩番 triple/ three fold, three fold increase
波動：fluctuate (around), a fluctuation in (display /demonstrate a fluctuation)
幅度：considerable adj．相當多的，constant adj. 不變的，remarkable adj. 明顯的，相當的
Line graph 常用句型：
1.開頭概述常用套句
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…
從圖中可以看出，這兩條曲線展示了從。。。到。。。。的。。。方面的變化
2)The line chart depicts the changes in the number of…over the period from 2000 to 2004．
該曲線圖描述了從2000年到2004年……數量的變化。
3)The graph, presented in the curve diagram, shows the general trend in…
該圖以曲線圖的形式描述了……總的趨勢。
4)This is a line chart showing…
這是一個曲線圖，描述了……
2. 描述曲線常用套句
1)The…in the graph is measured in units, each of which is equivalent to…
圖表中的……以……為單位，每單位等於……
2) The horizontal axis stands for…
橫軸代表了……
3)The vertical axis stands for… remarkably
縱軸代表了……
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…
從……到……期間A有快速/急遽/劇烈/急速/很大/明顯/很小/幾乎沒有/緩慢地增長/下降。
5) The curve appeared to level off in 1988．
曲線似乎在1988年穩定下來。
6)The situation reached a peak/a high(point)at…in 2000．
這種情況在2000年到達一個頂點，為……
7) The situation fell down to/reached the bottom in 2000．
這種情況在2000年降到低谷。
8)The figures hit a trough in 2000．
這些數字2000年降到最低點。
寫作題目：
The graph below shows electricity production (in terawatt hours) in France between 1980 and 2012.
Writing analysis：
Step 1：讀題目The graph below shows electricity production (in terawatt hours) in France between 1980 and 2012. 然後讀electricity production in France by source (TW-h). 看到橫坐標是年份，縱坐標是發電量，4條線分別為thermal/nuclear/hydroelectric/renewables. 將這些信息融合到一起，去改寫題目原句。（如何寫好開頭段，我們之後會有分享）
Step 2：我們稍微把頭抬起來一點，看圖表中非常明顯的大趨勢和大特徵（注意要忽略具體時間點和數量），比如nuclear線一直上升，已經成了大來源。thermal和hydroelectric有波動，但始終處於二三位。而renewables至始至終都是低。將這些概括信息寫入概述段。
Step 3：以1980年作為起始點，2012年作為終點，將每根線的重要細節都標註出來。比如1980年thermal是大的；nuclear和hydroelectric差不多；renewables幾乎為0；1981年nuclear趕超成為並在2005年達到峰值，而thermal卻在一波兒下降後一直計劃持低位震蕩；hydroelectric在整個階段都計劃持較為平穩的一個狀態；renewables在2012年達到高點等等。這裡我們要注意，細節信息和數據是非常多的，我們必須要做選擇，這個我們會在後續的推送中介紹方法。挑選好重要信息，我們就可以大致將其分成兩部分去寫兩個描述段。
Step 4：對寫好的文章進行細緻的檢查，包括字數、拼寫、標點、時態、數據、詞語重複等等
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.