核能发电流程 - 智能英语陪练

📝 题目

The diagram below shows how a nuclear power plant generates electricity. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

📊 图表内容说明

流程图展示核能发电过程：①铀燃料棒在反应堆内发生核裂变→②产生大量热能→③热能加热一回路高压水→④高温水通过热交换器加热二回路水→⑤二回路水变为蒸汽→⑥蒸汽推动涡轮机→⑦涡轮机带动发电机发电→⑧蒸汽经冷却塔冷凝回水→⑨水循环使用。

✍️ 满分范文

主体段 1

The diagram illustrates the process by which a nuclear power plant generates electricity, from the nuclear reaction in the reactor to the transmission of electricity.

改写题目，补充from...to...框架。

主体段 2

Overall, the process is a linear energy-conversion system consisting of several interconnected stages. Nuclear fission produces heat, which is used to generate steam, and the steam in turn drives a turbine connected to a generator. The system also incorporates a cooling mechanism that allows water to be recycled.

三个要素：①线性能量转换系统 ②核心链条(fission→heat→steam→turbine→generator) ③附带冷却循环。'interconnected stages'强调系统耦合性——识别多个回路是高分观察。

主体段 3

The process begins inside the nuclear reactor, where uranium fuel rods undergo fission, releasing a substantial amount of heat. This heat is absorbed by pressurised water circulating in the primary loop. The hot water then passes through a heat exchanger, where it transfers its thermal energy to water in a secondary loop, causing that water to boil and turn into steam.

描述核反应和热传递阶段。被动为主(is absorbed, is directed)。专业术语密集(fission/primary loop/heat exchanger/secondary loop)。'causing that water to boil'用分词结构表示因果——链条式流程的核心语法。

主体段 4

The high-pressure steam is directed onto the blades of a turbine, causing it to rotate. The turbine is connected to a generator, which converts the mechanical energy into electricity that is transmitted through power lines. Meanwhile, the steam is cooled in a condenser, turning back into water that returns to the heat exchanger, ready to be reheated.

描述发电和冷凝回水阶段。'causing it to rotate'/'is connected to'/'converts...into'描述机械传动链。末句'turning back into water that returns...'用分词+定语从句描述冷却循环——与线性主体并存的循环子系统。

📚 核心词汇

fission (裂变) · 核物理术语 ☆ pressurised (加压的) · 技术描述 ☆ primary/secondary loop (一回路/二回路) · 术语 ☆ heat exchanger (热交换器) · 术语 ☆ thermal energy (热能) · 术语 ☆ condenser (冷凝器) · 术语 ☆

🏆 高分句型

a linear energy-conversion system → 用于概括流程特征，体现整体性。亮点是名词短语作表语，简洁有力。可替换为a linear conversion system或a step-by-step energy chain。 ☆

interconnected stages → 描述各环节关系，强调连续性。亮点是过去分词作定语。可替换为linked stages或related phases。 ☆

undergo fission, releasing a substantial amount of heat → 引出核心物理变化，现在分词短语表伴随结果。可替换为produces enormous heat或releases huge amounts of thermal energy。 ☆

transfers its thermal energy to → 说明能量传递方向，动作清晰准确。亮点是transfer...to的固定搭配。可替换为passes its heat to或delivers its thermal energy to。 ☆

directed onto the blades of a turbine → 描述蒸汽作用方式，被动语态突显客观流程。可替换为blown onto the turbine blades或applied to the blades。 ☆

converts the mechanical energy into electricity → 点明能量转换结果，动词convert...into精准。可替换为turns mechanical energy into electrical energy或changes it into electricity。 ☆

ready to be reheated → 说明循环末端状态，不定式表目的与后续衔接。可替换为prepared for reheating或available to be heated again。 ☆

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满分范文 —— 英文原文 + 中文翻译 + 逐段解析

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