雅思写作流程图是A类考试中常见的题型，本文以剑19Test3的小作文为例，详细解析生物燃料乙醇生产流程的写作方法。通过分析高分范文，帮助考生掌握流程图题型的写作技巧。
流程图
The diagram below shows how a biofuel called ethanol is produced. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.
Write at least 150 words.
题目来源：剑19Test3小作文
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题目大意
下图显示了生物燃料乙醇的生产过程。通过选择和报告主要特征来总结信息，并在相关之处进行比较。
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高分范文示例
The given chart illustrates the process of producing ethanol from plants and trees. This cycle for biofuel production involves three main stages: harvesting and preparing plant material for processing, producing ethanol by chemical processing, and then using the fuel for transportation before the cycle begins again.
In the first stage, plants and trees absorb sunlight and capture atmospheric carbon dioxide to grow. Once mature, those plants are harvested using agricultural machinery, after which they undergo pre-processing equipment where they are converted into cellulose, which is a crucial component for ethanol production.
In the following stage, the cellulose is transported into a chemical factory for further processing, and then the starting cellulose is degraded into sugars which are subsequently transformed into bioethanol with the addition of microbes. The produced ethanol can be utilized as fuel for various vehicles, including cars, trucks, and airplanes.
During the combustion of ethanol in engines, carbon dioxide is released into the atmosphere. This carbon dioxide is then reabsorbed by plants and trees, continuing the same procedure cycle.
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相关词汇和语法结构
illustrates the process 展示过程
producing ethanol from plants and trees 从植物和树木中生产乙醇
biofuel production 生物燃料生产
three main stages 三个主要阶段
harvesting and preparing plant material 收获和准备植物材料
chemical processing 化学加工
absorbs sunlight 吸收阳光
agricultural machinery 农业机械
pre-processing equipment 预处理设备
combustion of ethanol in engines 在发动机中燃烧乙醇
来源：雅思情报圈
通过以上对剑19写作范文的解析，相信大家对雅思写作流程图的解题思路有了更清晰的认识。如需获取更多雅思备考技巧，欢迎咨询新航道雅思老师，我们将为您提供专业的学习指导。
