任务
单词发音
分析词义
- "Coal" 是一种天然存在的黑色或深褐色的可燃岩石，主要由碳组成，通常用于燃烧以产生能量。
列举例句
- The power plant burns coal to generate electricity.
- 这家发电厂燃烧煤炭来发电。
- They used to heat their homes with coal before central heating was installed.
- 在安装集中供暖之前，他们用煤来取暖。
- Mining coal can be a dangerous job due to the risk of cave-ins and explosions.
- 由于坍塌和爆炸的风险，开采煤炭可能是一份危险的工作。
词根分析
- "Coal" 源自拉丁语词汇 "carbo"，意为“木炭”。
词缀分析
发展历史和文化背景
- Coal has been used as a fuel for thousands of years, dating back to ancient civilizations like the Romans who used it for heating and metallurgical processes. It played a crucial role in the Industrial Revolution, powering steam engines and factories, which led to significant advancements in technology and society. Today, coal remains a major source of energy worldwide despite concerns about environmental pollution and climate change.
单词变形
- Noun: Coal (n.) - 煤；复数形式：Coals
- Verb: To coal (v.) - 上煤，装煤；（不常用）
- Adjective: Coal-related (adj.) - 与煤有关的
- Phrases: Burn coal (烧煤), Coal mining (采煤), Coal power (煤电)
记忆辅助
- Think of "coal" as "carbon" because they both start with "C" and are related to fossil fuels. Remember that coal is primarily used for generating energy by burning it, similar to how you might roast marshmallows over a campfire using charcoal briquettes.
小故事
Once upon a time, in a small village nestled between mountains, there was a young boy named Jack who worked in the local coal mine. Every day, he would descend into the dark depths, his head lamp casting long shadows on the rock walls. Despite the danger and hardship, Jack took pride in his work, knowing that the coal he mined helped power factories far away, illuminating cities at night. One particularly cold winter evening, as snow fell outside, Jack found a shimmering piece of coal that glowed faintly in the darkness. Believing it to be special, he carefully placed it in his pocket and brought it home. That night, as he held the mysterious coal close, warmth spread through his small cottage, filling him with hope for brighter days ahead.
从前，在一个被群山环绕的小村庄里，有一个名叫杰克的年轻男孩在当地的煤矿工作。每天，他都会下到黑暗的深处，他的头灯在岩壁上投下长长的影子。尽管危险重重、生活艰辛，但杰克为自己的工作感到自豪，因为他知道他所开采的煤炭为远方的工厂提供了动力，让城市在夜晚闪耀光芒。一个特别寒冷的冬夜，当雪花飘落在外面时，杰克发现了一块闪闪发光的煤炭，它在黑暗中微弱地闪烁着光芒。相信这块煤很特别，他小心翼翼地把它放进口袋里，带回了家。那天晚上，当他紧紧握住这块神秘的煤炭时，一股温暖传遍了他的小屋，让他对未来充满了希望。