剑19写作范文及解析 | A类小作文Test3 流程图

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

1、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。

2、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.

5、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