这是针对能源/环境类流程图的雅思小作文模板。这类题目（如发电、净水、垃圾回收）具有高度相似性，可以用统一的逻辑框架应对。
第一段：改写题目 + 总体概述
The diagram illustrates (the process of / how + 主语 + is/are + 过去分词). Overall, the procedure consists of (数字) main stages, beginning with (初始原料/步骤) and culminating in (最终产品/结果).
活用替换：
- `the process of generating electricity from tidal power`（潮汐发电）
- `how seawater is desalinated for human consumption`（海水淡化）
- `how municipal waste is recycled and converted into energy`（垃圾回收发电）
第二段：前期准备/输入阶段
The process commences when (原料A) (动词：is collected / is extracted / enters / flows into) (地点/容器). (可选：After this initial step,) (原料A) ( undergoes / is subjected to ) (第一个处理步骤，如：filtration / screening / crushing), (目的：to remove impurities / to reduce size / to separate components).
活用替换：
垃圾发电 The process commences when household waste is collected and transported to a processing plant...
净水处理 The process commences when raw water is extracted from a river and pumped into a reservoir...
风力发电 The process commences when wind turns the blades of a turbine...
第三段：核心处理/转化阶段
（主体段，可分段写）
(Subsequently / Following this / Thereafter), (主语) (is/are + 过去分词) (处理方式). (地点状语：in a + 设备/容器). This stage is crucial as (解释该步骤的作用/原理). (Optional: 如果有分支流程) While (主流程) (动词), (副产物/分支) (is/are + 过去分词 + 去向).
活用替换：
加热/燃烧 ...the waste is incinerated at high temperatures in a combustion chamber...
过滤/净化 ...the water is passed through a series of filters to eliminate contaminants...
能量转化 ...the steam drives a turbine which powers a generator to produce electricity...
化学反应 ...the sludge undergoes anaerobic digestion, producing biogas as a by-product...
第四段：最终产出/循环利用
In the final stage, (最终产品) (is produced / is generated / is made available). (Optional: 如果有循环/废物利用) Any (残余物/副产品) (is/are + 处理方式：recycled / reused / safely disposed of / converted into) (新用途).
活用替换：
In the final stage, purified drinking water is distributed to households through the municipal supply network.
In the final stage, electricity is transmitted via power lines to residential and industrial areas.
Any residual ash is collected and used in construction materials, ensuring minimal waste.
第五段：总结
（可选，如字数够可省略）
(To conclude / In summary), the entire process is (形容词：continuous / cyclical / linear / highly efficient), with (特点：no waste produced / multiple by-products utilized / renewable energy harnessed).
高分连接词库（按阶段分类）
开始 The process begins/commences/initiates when...
承接 Subsequently, Following this, Thereafter, In the subsequent stage
同时 Simultaneously, At the same time, Meanwhile, Concurrently
结果 Consequently, As a result, This results in..., ...which leads to
结束 In the final stage, Ultimately, The process culminates in...
核心动词被动语态库
移动类 is transported, is conveyed, is pumped, is channelled, is fed into
处理类 is filtered, is purified, is incinerated, is crushed, is sorted, is composted
转化类 is converted into, is transformed into, is utilized to produce
储存类 is stored in, is collected in, is retained
实战应用示例（垃圾发电）
The diagram illustrates how municipal waste is converted into electricity. Overall, the procedure consists of six main stages, beginning with the collection of household rubbish and culminating in the distribution of power to the grid.
The process commences when waste is collected by trucks and delivered to a processing facility. Following this, the rubbish undergoes manual and mechanical sorting to remove recyclable materials. Subsequently, the remaining organic matter is shredded into smaller pieces to facilitate combustion.
In the next stage, the processed waste is transferred to an incinerator and burned at high temperatures. This generates heat, which is used to boil water and create steam. Thereafter, the steam drives a turbine connected to a generator, thereby producing electricity. Simultaneously, any residual ash is collected and sold for use in road construction.
In the final stage, the electricity generated is transmitted via power lines to homes and businesses. To conclude, the process is cyclical and sustainable, with by-products being repurposed rather than discarded.
使用建议：
1. 先定位题型：确认是线性流程(linear)还是循环流程(cyclical)
2. 数清阶段：通常3-6个主要步骤，每步写1-2句
3. 被动语态：流程图80%用被动，体现客观性
4. 避免漏图：检查是否有箭头、分支、副产品、循环箭头
流程图小作文通用模板
(工业/技术流程，如发电、净水、回收等)
开头段 (Introduction)
The provided flowchart/diagram delineates the steps involved in the (替换1: 流程总称，如 generation of electricity, purification of water, recycling of plastic waste). In essence, it is a (替换2: 流程属性，如 linear/circular, multi-stage, man-made) process comprising (替换3: 总阶段数，如 four, six, several) key phases, from the initial (替换4: 第一阶段) to the final (替换5: 最后阶段或产物).
主体段 1 (前段与核心处理)
The procedure begins with the (替换6: 起始步骤，如 collection of raw materials, intake of seawater/ contaminated water, sorting of recyclable items). Subsequently, the collected materials undergo (替换7: 初步处理，如 coarse filtration, crushing, combustion). In the following stage, (替换8: 核心转换或/处理，如 steam is used to drive turbines, chemical dosing and sedimentation occur, materials are melted in a furnace) in order to (替换9: 核心处理的目的，如 generate kinetic energy, remove impurities, reform the raw material).
主体段 2 (后段与产出)
Following this, the resulting (替换10: 中间产物，如 vapor, treated water, molten material) is then subjected to (替换11: 进一步处理，如 condensation, fine filtration via membranes, cooling and solidification). The (替换12: 产物) is then either (替换13A: 最终处理或去向之一，如 transmitted to the grid via power lines, discharged into storage tanks for distribution, molded into pellets) or (替换13B: 可能产生的副产品及去向，如 the remaining ash is landfilled, the brine is returned to the sea, by-products are used for other purposes). Ultimately, the process yields (替换14: 最终产物，如 usable electricity, potable water, new products like bottles or fibers).
结尾段 (可选总结)
In summary, the diagram outlines how (重复/转述原材料或初始物) is processed through (替换15: 总结关键阶段，如 physical treatment and energy conversion, a series of chemical and biological steps, sorting, reprocessing and remanufacturing) to become (重复/转述最终产物).
模板使用与活用提示：
1. 精确替换：括号内容必须严格替换为图中所示的具体名词、动词和阶段数。
2. 阶段划分：可依据图中步骤的多少，将“主体段1”或“主体段2”进一步拆分，使段落与逻辑分组对应。
3. 被动语态：此类工业流程通常大量、正确地使用被动语态（is collected, are processed, is generated）来体现客观性。
4. 逻辑衔接：除列出的词外，可使用
"at this point",
"concurrently",
"meanwhile" (同时),
"prior to",
"once" 等丰富逻辑关系。
5. 词汇升级：
* 处理：
"process",
"treat",
"handle"
* 转化：
"convert into",
"transform into"
* 运输/移动：
"convey",
"transport",
"channel"
* 产出：
"yield",
"produce",
"generate",
"result in"
