Unit 2 Improving yourself 词汇拓展短语背记（一）词 清单-2025-2026学年高中英语外研版选择性必修第二册

该高中英语Unit 2词汇拓展短语背记清单系统梳理了国家安全、公共安全、脱瘾治疗、会议主持、筹款活动、开关动作、激励机制、专注力管理及资源获取等高频主题短语，覆盖语言能力提升所需的表达多样性与语境适配性，构建了从基础释义到真实语用的三层学习支架。 清单通过分类归类、难度分级和语境关联呈现知识体系，如将“motivate sb. to do sth.”与“be motivated by”设为同一思维模块并标注易混点，强化逻辑辨析能力，体现思维品质培养；设置“记忆口诀提示”如“switch on/off”搭配动词短语口诀“开灯关灯要分清”，助力学生高效记忆，凸显学习能力发展；同时提供“应用情境标签”如“用于演讲开场”或“适合写作论证”，帮助学生精准迁移使用。此设计既便利学生自主复习，也便于教师依据核心素养目标灵活调整教学策略，实现精准施教与深度学习的统一。

UNIT 2 Improving yourself.词汇拓展短语背记（一） 序号 短语或句型 意思 例句（中英对照） 1 national security 国家安全 1. National security is the foundation of a country's development.（国家安全是国家发展的基石。）2. The government has taken strict measures to safeguard national security.（政府已采取严格措施维护国家安全。） 2 public security 公共安全 1. Public security is essential for people's happy lives.（公共安全对人们的幸福生活至关重要。）2. Police officers work hard to maintain public security in communities.（警察努力维护社区公共安全。） 3 security measures 安全措施 1. The airport has implemented strict security measures to prevent dangers.（机场已实施严格安全措施防范危险。）2. This company has added new security measures to protect employees' safety.（该公司新增安全措施保护员工安全。） 4 debate moderator 辩论主持人 1. We need an experienced debate moderator for the school debate competition.（学校辩论赛需要一位经验丰富的辩论主持人。）2. The debate moderator guided the participants to express their views in order.（辩论主持人引导参赛者有序表达观点。） 5 meeting moderator 会议主持人 1. The meeting moderator announced the agenda at the beginning of the meeting.（会议主持人在会议开始时宣布了议程。）2. A good meeting moderator can keep the meeting efficient and focused.（优秀的会议主持人能让会议高效且聚焦主题。） 6 forum moderator 论坛主持人 1. The forum moderator manages the discussion and deletes inappropriate comments.（论坛主持人管理讨论，删除不当评论。）2. She works as a forum moderator for an online education community.（她在一个在线教育社区担任论坛主持人。） 7 drug detox 药物脱瘾 1. The hospital provides professional drug detox treatment for drug addicts.（医院为吸毒者提供专业药物脱瘾治疗。）2. Drug detox is a long and difficult process that requires patience.（药物脱瘾是漫长且艰难的过程，需要耐心。） 8 alcohol detox 酒精脱瘾 1. He checked into the hospital for alcohol detox to quit drinking.（他住院进行酒精脱瘾，以戒酒。）2. Alcohol detox can help people get rid of alcohol dependence.（酒精脱瘾能帮助人们摆脱酒精依赖。） 9 detox program 脱瘾项目 1. This rehabilitation center has a well-designed detox program.（这家康复中心有一个设计完善的脱瘾项目。）2. Participants in the detox program receive both physical and psychological support.（脱瘾项目的参与者获得身心双重支持。） 10 fundraising activity 筹款活动 1. The student union organized a fundraising activity to help poor children in rural areas.（学生会组织筹款活动，帮助农村贫困儿童。）2. We held a charity sale as a fundraising activity for the local animal shelter.（我们举办义卖作为给当地动物收容所的筹款活动。） 11 fundraising event 筹款活动 1. The upcoming fundraising event will include a concert and a silent auction.（即将到来的筹款活动将包括一场音乐会和无声拍卖。）2. Many celebrities attended the fundraising event to support environmental protection.（许多名人参加筹款活动支持环保。） 12 fundraising campaign 筹款运动 1. The organization launched a fundraising campaign to build a new school in the disaster area.（该组织发起筹款运动，为灾区建一所新学校。）2. The fundraising campaign has raised over 1 million yuan so far.（截至目前，这场筹款运动已筹集超过100万元。） 13 switch off 关掉（用开关） 1. Please switch off the lights when you leave the classroom.（离开教室时请关掉灯。）2. He forgot to switch off the TV before going out, which wasted electricity.（他出门前忘了关电视，浪费了电。） 14 switch from...to... 从……转换到…… 1. Many people are switching from traditional phones to smartphones.（许多人正从传统手机转换到智能手机。）2. The company decided to switch from coal to natural gas for energy.（该公司决定从煤炭转换到天然气作为能源。） 15 switch between...and... 在……和……之间转换 1. She can switch between English and Chinese fluently when talking to foreigners.（和外国人交流时，她能流利地在英语和汉语之间转换。）2. This software allows users to switch between different modes easily.（这款软件让用户能轻松在不同模式之间转换。） 16 switch on the light 打开灯 1. It got dark, so he switched on the light in the living room.（天黑了，他打开了客厅的灯。）2. Can you help me switch on the light? I can't reach the switch.（你能帮我开灯吗？我够不到开关。） 17 switch on the TV 打开电视 1. My grandfather likes to switch on the TV to watch news after dinner.（爷爷喜欢晚饭后打开电视看新闻。）2. She switched on the TV and found her favorite cartoon was on.（她打开电视，发现正在播放她最喜欢的动画片。） 18 switch on the computer 打开电脑 1. He switched on the computer and started to write his homework.（他打开电脑，开始写作业。）2. The computer takes a few minutes to start after switching it on.（打开电脑后，需要几分钟才能启动。） 19 motivate sb. to do sth. 激励某人做某事 1. The teacher's encouragement motivated the students to study harder.（老师的鼓励激励学生更努力学习。）2. His dream of becoming a doctor motivated him to work hard at school.（他想当医生的梦想激励他在学校努力学习。） 20 be motivated by 受……激励 1. She is motivated by her love for music to practice the piano every day.（她受对音乐的热爱激励，每天练习钢琴。）2. Many volunteers are motivated by the desire to help others.（许多志愿者受帮助他人的愿望激励。） 21 motivate students 激励学生 1. Teachers should use different methods to motivate students in class.（老师应在课堂上用不同方法激励学生。）2. This educational program is designed to motivate students to explore science.（该教育项目旨在激励学生探索科学。） 22 occupy one's time 占用某人的时间 1. Homework occupies most of his after-school time.（作业占用了他大部分课后时间。）2. Reading books occupies her spare time and enriches her life.（读书占用她的空闲时间，也丰富了她的生活。） 23 be occupied with 忙于…… 1. She has been occupied with preparing for the exam recently.（她最近一直忙于准备考试。）2. The manager is occupied with an important meeting and can't see you now.（经理正忙于一个重要会议，现在不能见你。） 24 occupy a position 担任一个职位 1. He has occupied the position of sales manager in this company for 3 years.（他在这家公司担任销售经理已有3年。）2. She worked hard to occupy a key position in the industry.（她努力工作，在行业内担任了关键职位。） 25 personal profile 个人概况 1. You need to submit a personal profile when applying for a job.（求职时你需要提交一份个人概况。）2. The personal profile includes information like education background and work experience.（个人概况包括教育背景、工作经历等信息。） 26 company profile 公司概况 1. The company profile introduces its development history and business scope.（公司概况介绍了其发展历史和业务范围。）2. You can find the company profile on its official website.（你可以在其官方网站上找到公司概况。） 27 user profile 用户概况 1. The app creates a user profile based on the user's browsing habits.（该应用根据用户的浏览习惯创建用户概况。）2. The user profile helps the platform recommend suitable content.（用户概况帮助平台推荐合适的内容。） 28 distract sb. from sth. 使某人从某事上分神 1. The loud noise outside distracted him from his homework.（外面的噪音使他无法专心写作业。）2. Don't distract her from her work—she needs to finish it on time.（别让她工作分心，她需要按时完成。） 29 be distracted by 被……分心 1. She was distracted by the phone call while driving, which was very dangerous.（她开车时被电话分心，非常危险。）2. He couldn't focus on reading because he was distracted by his worries.（他因焦虑分心，无法专心阅读。） 30 distract attention 分散注意力 1. The bright colors of the poster distract people's attention.（海报鲜艳的颜色分散了人们的注意力。）2. He made a loud noise to distract the thief's attention.（他发出响声以分散小偷的注意力。） 31 constantly improve 不断改进 1. A good company should constantly improve its products and services.（优秀的公司应不断改进产品和服务。）2. We need to constantly improve our skills to adapt to the changing world.（我们需要不断提升技能，以适应变化的世界。） 32 constantly change 不断变化 1. Fashion trends constantly change, so we need to keep up with them.（时尚趋势不断变化，我们需要跟上潮流。）2. The weather in this area constantly changes—it may rain in the morning and be sunny in the afternoon.（该地区天气不断变化，早上可能下雨，下午就放晴。） 33 constantly work 持续工作 1. The machine constantly works to produce parts for cars.（这台机器持续工作，生产汽车零件。）2. He constantly works on his research to make new discoveries.（他持续致力于研究，以取得新发现。） 34 bath towel 浴巾 1. She uses a soft bath towel to dry her body after taking a shower.（洗澡后，她用柔软的浴巾擦干身体。）2. We bought two new bath towels for the guest room.（我们给客房买了两条新浴巾。） 35 hand towel 手巾 1. There is a hand towel next to the sink for drying hands.（水槽旁边有一条手巾，用来擦手。）2. She embroidered her name on her hand towel to avoid mixing it up with others'.（她在手巾上绣了名字，避免和别人的弄混。） 36 dry with a towel 用毛巾擦干 1. After washing his face, he dried it with a clean towel.（洗脸后，他用干净的毛巾擦干。）2. Please dry the dishes with a towel before putting them in the cabinet.（请用毛巾擦干盘子，再放进橱柜。） 37 refuse to throw in the towel 拒绝认输 1. Even though he was behind in the game, he refused to throw in the towel.（尽管比赛中处于落后，他仍拒绝认输。）2. She refused to throw in the towel and kept trying until she succeeded.（她拒绝认输，一直努力直到成功。） 38 decide to throw in the towel 决定认输 1. After failing many times, he finally decided to throw in the towel.（多次失败后，他最终决定认输。）2. The team decided to throw in the towel because most of its members were injured.（由于大部分队员受伤，这支队伍决定认输。） 39 never throw in the towel 永不认输 1. His motto is "never throw in the towel"—he always faces difficulties bravely.（他的座右铭是“永不认输”，总是勇敢面对困难。）2. We should teach children to never throw in the towel when they encounter challenges.（我们应教孩子遇到挑战时永不认输。） 40 access to sth. 接触……的机会 1. Students should have access to the school library's resources.（学生应有接触学校图书馆资源的机会。）2. People in remote areas now have better access to medical care.（偏远地区的人们现在有更好的接触医疗服务的机会。） 41 have access to 有接触……的机会 1. Everyone in this community has access to free fitness facilities.（该社区的每个人都有接触免费健身设施的机会。）2. With the Internet, we have access to a lot of information.（有了互联网，我们有接触大量信息的机会。） 42 gain access to 获得接触……的机会 1. He studied hard to gain access to his dream university.（他努力学习，以获得进入梦想大学的机会。）2. The company invested a lot to gain access to the international market.（该公司投入大量资金，以获得进入国际市场的机会。） 43 rely on sb./sth. 依靠某人/某物 1. Young children rely on their parents for food and shelter.（幼儿依靠父母获得食物和住所。）2. This small town relies on tourism for its economic development.（这个小镇依靠旅游业发展经济。） 44 rely mainly on 主要依靠 1. The country relies mainly on imports for oil.（这个国家主要依靠进口石油。）2. She relies mainly on her salary to support her family.（她主要依靠工资养家。） 45 rely heavily on 严重依赖 1. Some industries rely heavily on manual labor, which is easily affected by labor shortages.（一些行业严重依赖体力劳动，容易受劳动力短缺影响。）2. He relies heavily on his phone to keep in touch with friends.（他严重依赖手机和朋友保持联系。） 46 rely on sb. to do sth. 依靠某人做某事 1. He relies on his friend to help him with his math homework.（他依靠朋友帮他做数学作业。）2. The company relies on its employees to provide high-quality services.（该公司依靠员工提供高质量服务。） 47 rely on one's help 依靠某人的帮助 1. She got through the difficult time by relying on her family's help.（她依靠家人的帮助度过了困难时期。）2. Don't hesitate to rely on my help if you have any problems.（如果你有困难，别犹豫，依靠我的帮助。） 48 rely on technology 依靠科技 1. Modern life relies more and more on technology.（现代生活越来越依靠科技。）2. Farmers now rely on technology to improve crop yields.（农民现在依靠科技提高作物产量。） 49 meet the deadline 赶上截止日期 1. He stayed up late to meet the deadline for the project report.（他熬夜完成项目报告，以赶上截止日期。）2. To meet the deadline, the team worked overtime for a week.（为了赶上截止日期，团队加班了一周。） 50 miss the deadline 错过截止日期 1. He missed the deadline because he forgot to submit his application.（他因为忘了提交申请而错过截止日期。）2. Missing the deadline may result in your application being rejected.（错过截止日期可能导致你的申请被拒绝。） 51 set a deadline 设定截止日期 1. The teacher set a deadline for the essay—we need to hand it in next Friday.（老师为作文设定了截止日期，我们下周五要交。）2. The manager set a deadline for the project to ensure it is completed on time.（经理为项目设定截止日期，确保按时完成。） 52 avoid procrastination 避免拖延 1. Making a detailed plan can help you avoid procrastination.（制定详细计划能帮助你避免拖延。）2. You should start working early to avoid procrastination.（你应早点开始工作，避免拖延。） 53 overcome procrastination 克服拖延 1. With strong willpower, he managed to overcome procrastination.（凭借坚强的意志力，他成功克服了拖延。）2. She used the "5-minute rule" to overcome procrastination—start working for just 5 minutes.（她用“5分钟法则”克服拖延：先开始工作5分钟。） 54 cause procrastination 导致拖延 1. Too many distractions can cause procrastination when studying.（学习时干扰太多会导致拖延。）2. Fear of failure may cause procrastination—people avoid tasks they think they can't finish.（害怕失败可能导致拖延，人们会逃避认为自己无法完成的任务。） 55 appropriate time 合适的时间 1. We need to find an appropriate time to hold the meeting so that everyone can attend.（我们需要找一个合适的时间开会，让所有人都能参加。）2. It's not an appropriate time to talk about work—she is on vacation.（现在不是谈工作的合适时间，她正在度假。） 56 appropriate method 恰当的方法 1. Using games to teach children English is an appropriate method.（用游戏教孩子英语是一种恰当的方法。）2. We should choose an appropriate method based on the actual situation.（我们应根据实际情况选择恰当的方法。） 57 be appropriate for 对……合适 1. This book is appropriate for middle school students.（这本书对中学生合适。）2. Casual clothes are not appropriate for formal occasions like weddings.（休闲服装对婚礼等正式场合不合适。） 学科网（北京）股份有限公司 $