24｜食品与石油：双纵轴与相似走势
本节题目
The graph below shows changes in global food and oil prices between 2000 and 2011.
看图读范文 · 图文对照
看着图，读到会写
图与范文同时保留。两侧可分别滚动，关键词标出信息关系。
先看标题、图例、单位和时间，再找关键特征。点击图片可放大；写作时也能随时对照题图。
The line graph compares the average price of a barrel of oil with the food price index over a period of 11 years.
It is clear that average global prices of both oil and food rose considerably between 2000 and 2011. Furthermore, the trends for both commodities were very similar, with broadly similar movements over much of the period.
In the year 2000, the average global oil price was close to $25 per barrel, and the food price index stood at just under 90 points. Over the following four years both prices remained relatively stable, before rising steadily between 2004 and 2007. By 2007, the average oil price had more than doubled, to nearly $60 per barrel, and food prices had risen by around 50 points.
A dramatic increase in both commodity prices was seen from 2007 to 2008, with oil prices reaching a peak of approximately $130 per barrel and the food price index rising to 220 points. However, by the beginning of 2009 the price of oil had dropped by roughly $90, and the food price index was down by about 80 points. Finally, in 2011, the average oil price rose once again, to nearly $100 per barrel, while the food price index reached its peak, at almost 240 points.
约 212 词 · 经本站整理的学习参考 · 不代表官方评分
先读熟，再遮住回忆。下方的“本题句型”帮助你把表达用到相似题目。
本题句型 · 看到这种关系，怎样起句
时间变化 · 先读本题句，再记表达关系。骨架中的省略号需要换成新题的信息，并调整时态与数量。
01 · 引言 · 交代对象与范围
看到题目，先说明图表展示什么。
可用骨架
The chart / table compares… in terms of…
本题原句
The line graph compares the average price of a barrel of oil with the food price index over a period of 11 years.
对象、地点、时期与图表数量随题目变化。用熟悉表达准确改述即可。
02 · 概述 · 抓住整体关系
两项指标总体上升；高峰后明显回落；食品后期再创较高水平。
可用骨架
Overall, A increased, whereas B declined over the period shown.
本题原句
It is clear that average global prices of both oil and food rose considerably between 2000 and 2011. Furthermore, the trends for both commodities were very similar, with broadly similar movements over much of the period.
有时间轴才描述变化。from 是起值，to 是终值，by 是变化量；不必强行把所有线写成相反走势。
03 · 细节 · 用信息支撑概述
按稳定期、快速上升期、回落与恢复期分组。
可用骨架
The figure rose / fell from… to… between… and…
本题原句
In the year 2000, the average global oil price was close to $25 per barrel, and the food price index stood at just under 90 points.
美元每桶与价格指数不能直接比较大小，也不能凭目测计算精确相关系数。
选择与组织 · 为什么这样写
先找关键特征
两项指标总体上升；高峰后明显回落；食品后期再创较高水平。
怎样决定分组
按稳定期、快速上升期、回落与恢复期分组。
为什么这样选择
共同转折比逐条曲线复述更有信息；走势相似不证明石油价格造成食品上涨。
语言与精度 · 本节重点
美元每桶与价格指数不能直接比较大小，也不能凭目测计算精确相关系数。
最后练一练 · 先组织，再写
读熟后，可以先遮住参考，回忆本节最有用的两三句。想动笔时再打开下方写作台，不需要首次学习就完成全文。
定点练习
纠正“Food was more expensive because its index was 220 and oil was $130.”
写完后看一种参考处理
Both indicators peaked in 2008, although they were measured in different units.
检查它修正了什么意义或关系。可以使用不同措辞，但信息需要准确。
换题使用
本站自编文字数据 · 与上方原题分开
自编数据：2010/2015/2020油价为40/80/60美元每桶，食品指数为90/140/120。写走势比较，不比较两个数值的绝对高低。
先试一段，再视需要写全文。将新内容写在写作台的“迁移”中；原稿留在“初稿”，修订另存到“修改”。图表题需要重新识别特征，书信与议论文需要重新回应任务。
打开写作台 · 短练、全文与复盘
The graph below shows changes in global food and oil prices between 2000 and 2011.
全文练习至少150词，约20分钟；短练可以先写两三句或一个段落。
把读到的表达，写成自己的答案
A 类 Task 1 · 全文练习至少 150 词 · 建议 20 分钟
留一个复盘：我能回忆哪组表达？换了内容后，哪一句还不熟？下一次先检查这个问题。