Unit5 First Aid 单词讲解课件-2025-2026学年高中英语人教版选择性必修第二册

该高中英语课件围绕Unit 5 First Aid主题，系统梳理了“technique”“radiation”“minor”等核心词汇的词义、相关短语及用法示例，通过词汇派生、短语搭配与语境例句的串联，搭建从基础词义到实际运用的学习支架，帮助学生建立连贯的词汇知识脉络。 其亮点在于以结构化词汇呈现为核心，通过“词汇-短语-例句”三层递进设计，结合急救主题语境，培养学生的语言运用能力与逻辑思维品质。例如“urgent”一词从动词“urge”派生出名词“urgency”、副词“urgently”，并搭配“It is urgent that...”句式，帮助学生在关联中深化理解。这种设计既提升学生词汇学习效率，也为教师提供清晰的教学路径，助力课堂高效实施。

Unit 5 First Aid Words and Expressions technique master a technique 掌握技术 teaching techniques 教学方法 technique for (doing) sth 做某事的技巧 technical 技术的 technician 技术人员 technology 科技 He improved his cooking technique by watching online videos. This is a useful technique for remembering vocabulary. She wants to become a computer technician to help people fix software problems. radiation nuclear radiation 核辐射 be exposed to radiation 暴露于辐射中 radiate 散发；辐射 The sun’s radiation can be harmful to our skin. The heat radiates from the fireplace. The radiation from the phone is very weak. minor a minor issue 小问题 minor injuries 轻伤 a minority of 少量的 (反) major minority 少数；少数民族 majority 多数 It’s just a minor mistake; don’t worry. She decided to minor in French. electric electric car 电动汽车electric shock 触电 electrical 与电有关的 electricity 电 electronic 电子的 He got an electric shock when touching the wire. My father is an electrical engineer. This is an electrical fault. You need to call an engineer. urgent an urgent message 紧急消息 It is urgent that… (should do) 坚决要求/极力主张某人应该做某事 urge 催促 urgency 紧迫性 urgently 紧急地 There is an urgent need for food and water. She urged him to see a doctor/to hurry up. elderly the elderly 老年人 an elderly woman 一位老妇人 elder 长者，常用于家庭中 We should respect the elderly. My elder brother is a teacher. The elderly are being taken good care of in this community. delay without delay 立即 delay doing sth 推迟做某事 We must leave without delay. They delayed holding the meeting. The flight is delayed because of the heavy rain. practical practical advice 实用建议practical joke 恶作剧 practically 几乎；实际上practice 练习；实践 It’s not practical to carry such a big bag. He’s practically a member of our family. welfare social welfare 社会福利animal welfare 动物福利 The government should care about people’s welfare. She works for an animal welfare organization. We should care about the welfare of poor children. organ internal organs 内脏 organ donation 器官捐献 organic 有机的 organize 组织 The heart is a vital organ. Organic food is becoming more popular. The organic apples are more expensive but healthier. millimeter milli 千分之一+ meter 米 = 毫米 milli 千分之一+ ampere安培 = 毫安 milli 千分之一 + gram 克 = 毫克 The tolerance for this part is only one millimeter. ease with ease 轻松地 ease one’s pain 减轻痛苦 She solved the problem/finished the work with ease. The medicine helped to ease his pain. slip slip and fall 滑倒 slip of the tongue 口误 Be careful not to slip on the wet floor. operator telephone operator 电话接线员 machine operator 机器操作员 operate 操作；动手术 operation 操作；手术 Please dial zero for the operator. The doctor will operate on him tomorrow. The operation of this machine requires special training. panic panic attack 恐慌发作 in a panic 惊慌中 Don’t panic! Everything will be OK. She was in a panic when she lost her phone. panic → panicked interrupt interrupt sb 打断某人 without interruption 不间断地 interruption n. 打断 It’s rude to interrupt others while they are speaking. The rain continued without interruption. Don’t interrupt others when they are talking. desperate be desperate for 极度渴望 desperate situation 绝望的处境 desperation 绝望 desperately 绝望地 He was desperate for a job. They made a desperate attempt to save the child. He was desperate to pass the exam. tight tight schedule 日程紧张 tight clothes 紧身衣服 tightly 紧紧地tighten 使变紧 These shoes are too tight. She held the bag tightly. motion in motion 进行中set in motion 启动 The train was already in motion. The project was set in motion last month. move 移动 justify justify oneself 为自己辩护 justify doing sth 证明做某事是合理的 justification 理由 How can you justify such expensive spending? He tried to justify his actions. There is no justification for his rude behavior. foggy a foggy day 有雾的日子 fog 雾 The morning was cold and foggy. Driving in thick fog is dangerous. collapse collapse from exhaustion 因精疲力尽而昏倒economic collapse 经济崩溃 The old building collapsed in the earthquake. He collapsed on the floor after running the marathon. membership membership fee 会员费 apply for membership 申请会员资格 member 成员 My membership will expire next month. She is a member of the tennis club. $