Unit 2 Digital life 单元词汇讲解 + 专项练习 - 2026学年沪教版（五四学制）八年级上册英语

**基本信息** 聚焦数字生活主题词汇，通过详解+多维练习构建系统词汇网络，强化语言能力与学习能力。 **专项设计** |模块|题量/典例|题型特征|知识逻辑| |----|-----------|----------|----------| |词汇详解|51词|含音标、词性转换、固定搭配及例句|围绕“数字生活”主题，串联数码产品、技术术语、操作行为等词汇，形成主题关联网络| |专项练习|4题型（30+20+20+15空）|汉译英补全、词性转换、首字母填空、语法填空|覆盖词汇记忆（拼写）、应用（语境）、拓展（转换）维度，契合中考词汇考查核心要求|

沪教版（五·四学制）八年级上册Unit 2 Digital life 词汇练习 参考答案 一、根据括号内的中文提示补全句子 1. digital 解析：形容词digital修饰devices，数码设备 2. support 解析：不可数名词support，technical support 技术支持 3. laptop 解析：单数名词laptop，a后接单数 4. keyboard 解析：名词keyboard，电脑键盘 5. bluetooth 解析：不可数名词bluetooth，蓝牙 6. smartphone 解析：单数名词smartphone，a后接单数 7. headset 解析：单数名词headset，耳机 8. large 解析：形容词large，a large number of 大量的 9. clear 解析：形容词clear，听得清楚的 10. private 解析：形容词private，私人信息 private information 11. touch 解析：动词touch，do not后接动词原形 12. touch screen 解析：名词短语，触摸屏 13. advantages 解析：名词复数advantages，main advantages 主要优点 14. chip 解析：单数名词chip，芯片 15. lightning 解析：形容词lightning，lightning speed 飞快速度 16. purple 解析：形容词purple，紫色的 17. AI 解析：缩写AI，人工智能，句首大写 18. keep an eye on 解析：固定短语，留神、留意 19. health 解析：不可数名词health，健康 20. complaint 解析：单数名词complaint，make a complaint 投诉 21. press 解析：动词press，please后接动词原形 22. inconvenience 解析：不可数名词inconvenience，不便、麻烦 23. repeat 解析：动词repeat，do not后接动词原形 24. couple 解析：固定短语a couple of 几个 25. freeze 解析：动词freeze，may后接动词原形 26. software 解析：不可数名词software，软件 27. apps 解析：复数名词apps，应用程序 28. network 解析：名词network，网络 29. disabled 解析：形容词disabled，有残疾的 30. type 解析：单数名词type，a后接单数 二、用括号内单词的正确形式填空 1. Digital 解析：形容词digital修饰learning，句首大写，数字化学习 2. support 解析：不可数名词support，技术支持 3. laptops 解析：two后用复数laptops 4. keyboards 解析：复数泛指键盘 5. smartphones 解析：many后用复数smartphones 6. headsets 解析：these后用复数headsets 7. larger 解析：固定搭配a larger number of 更多数量的 8. clearly 解析：副词clearly修饰动词speak 9. privacy 解析：private形容词变名词privacy，隐私信息 10. touch 解析：名词touch修饰screen，touch screen 触摸屏 11. advantage 解析：固定搭配take advantage of 利用 12. chips 解析：these后用复数chips 13. disadvantages 解析：名词disadvantage复数，表示弊端 14. unhealthy 解析：health变形容词unhealthy，不健康的 15. complaints 解析：make complaints 投诉，用复数 16. repeated 解析：形容词repeated修饰operations，反复的 17. apps 解析：a couple of后接复数apps 18. frozen 解析：be frozen 卡住、冻结 19. types 解析：different后用复数types 20. blind 解析：形容词blind修饰people，视障人士 21. detect 解析：can后接动词原形detect 22. warned 解析：be warned 被动语态，被提醒警惕 23. directions 解析：direction复数directions，用法说明 24. informs 解析：主语system单数，一般现在时三单informs 25. report 解析：please后接动词原形report 26. connection 解析：connect动词变名词connection，网络连接 27. aware 解析：固定搭配be aware of 意识到 28. hidden 解析：形容词hidden修饰viruses，隐藏的 29. viruses 解析：different后用复数viruses 30. benefits 解析：many后用复数benefits，益处 三、根据首字母提示完成句子 1. digital 解析：digital devices 数码设备 2. support 解析：technical support 技术支持 3. laptop 解析：轻便笔记本电脑适合线上学习 4. keyboard 解析：定期清洁键盘 5. bluetooth 解析：通过蓝牙连接耳机 6. smartphones 解析：智能手机让生活更便利 7. large 解析：a large number of 大量 8. private 解析：保护私人信息 9. advantage 解析：take advantage of 利用优质数字资源 10. chip 解析：芯片是数码设备核心部件 11. apps 解析：留意陌生应用程序防病毒 12. freeze 解析：屏幕可能卡死冻结 13. detect 解析：杀毒软件检测病毒 14. warn 解析：系统提醒警惕危险软件 15. directions 解析：遵照软件使用说明 16. aware 解析：be aware of 意识到风险 17. viruses 解析：电脑病毒危害设备 18. conclusion 解析：in conclusion 最后 19. benefit 解析：benefit from 受益于优质软件 20. inconvenience 解析：不良软件带来不便 四、短文语法填空 1. digital 解析：形容词digital修饰products，数码产品 2. laptops 解析：a large number of后接复数laptops 3. types 解析：different后接复数types，不同类型 4. lightning 解析：固定搭配lightning speed 飞快速度 5. benefits 解析：many后接复数benefits，益处 6. disadvantages 解析：复数表示多种弊端 7. viruses 解析：复数viruses，电脑病毒 8. detect 解析：can后接动词原形detect 9. aware 解析：be aware of 意识到 10. private 解析：形容词private修饰information，私人信息 11. connection 解析：network connection 网络连接 12. disabled 解析：形容词disabled修饰users，残障用户 13. conclusion 解析：固定搭配in conclusion 最后 14. advantage 解析：take advantage of 利用 15. from 解析：固定搭配benefit from 受益于 学科网（北京）股份有限公司 $ 沪教版（五·四学制）八年级上册Unit 2 Digital life 单元词汇详解+专项练习 1. digital /ˈdɪdʒɪtl/ adj. 数码的；数字式的 词性转换：digit (n. 数字)；digitally (adv. 数字化地) 固定搭配：digital products 数码产品；digital technology 数字技术 例句：Many people use digital devices in daily life. 2. support /səˈpɔːt/ n. 技术支持；支持；帮助 v. 支持；支撑 词性转换：supportive (adj. 支持的)；supporter (n. 支持者) 固定搭配：technical support 技术支持；support sb. 支持某人 例句：The team offers free technical support for laptops. 3. laptop /ˈlæptɒp/ n. 便携式电脑；笔记本电脑 词性转换：laptops (pl.) 固定搭配：use a laptop 使用笔记本电脑 例句：A light laptop is convenient for study and work. 4. keyboard /ˈkiːbɔːd/ n. (计算机或打字机的)键盘 词性转换：keyboards (pl.) 固定搭配：computer keyboard 电脑键盘 例句：Clean the keyboard regularly to keep it tidy. 5. bluetooth /ˈbluːtuːθ/ n. 蓝牙（用于手机、计算机等电子设备的短距离无线连接技术） 固定搭配：bluetooth connection 蓝牙连接 例句：We connect headsets via bluetooth. 6. smartphone /ˈsmɑːtfəʊn/ n. 智能手机 词性转换：smartphones (pl.) 固定搭配：smartphone app 手机应用 例句：Smartphones make daily life much easier. 7. headset /ˈhedset/ n. (尤指带麦克风的)头戴式受话器，耳机 词性转换：headsets (pl.) 固定搭配：wireless headset 无线耳机 例句：A good headset helps with online classes. 8. large /lɑːdʒ/ adj. 大的；大规模的；大量的 词性转换：larger (比较级)；largest (最高级)；largely (adv. 主要地) 固定搭配：a large number of 大量的；large scale 大规模 例句：There is a large network of digital devices. 9. clear /klɪə(r)/ adj. 听得清的；清楚的；明白的 v. 移走，清除(不需要的东西) 词性转换：clearly (adv. 清楚地)；clearance (n. 清除) 固定搭配：clear the screen 清理屏幕；be clear about 清楚 例句：Make the sound clear when using the headset. 10. private /ˈpraɪvət/ adj. 私人的；个人的 词性转换：privately (adv. 私下地)；privacy (n. 隐私) 固定搭配：private information 私人信息；private network 专用网络 例句：Do not share private information online. 11. touch /tʌtʃ/ n. 触摸；触觉 v. 触摸；碰 词性转换：touched (adj. 受触动的)；touching (adj. 感人的) 固定搭配：touch screen 触摸屏；keep in touch 保持联系 例句：Do not touch the screen with dirty hands. 12. touch screen /ˈtʌtʃ skriːn/ n. (计算机)触摸屏 固定搭配：a big touch screen 大屏幕触摸屏 例句：This laptop has a wide touch screen. 13. advantage /ədˈvɑːntɪdʒ/ n. 优点；优势 词性转换：disadvantage (n. 不利因素)；advantageous (adj. 有利的) 固定搭配：take advantage of 利用；have an advantage over 优于 例句：Digital technology has many advantages. 14. chip /tʃɪp/ n. 芯片 词性转换：chips (pl.) 固定搭配：computer chip 电脑芯片 例句：The tiny chip controls the whole system. 15. lightning /ˈlaɪtnɪŋ/ adj. 闪电般的；飞快的 n. 闪电 固定搭配：lightning speed 飞快的速度 例句：Data travels at lightning speed in the network. 16. purple /ˈpɜːpl/ adj. 紫色的 词性转换：purples (pl. 紫色衣物) 固定搭配：purple screen 紫屏 例句：The old screen sometimes turns purple. 17. AI /ˌeɪ ˈaɪ/ abbr. (= artificial intelligence) 人工智能 固定搭配：AI technology 人工智能技术 例句：AI changes people’s daily work greatly. 18. keep an eye on 照看；留神；留意 例句：Keep an eye on personal information online. 19. health /helθ/ n. 人的身体(或精神)状况；健康 词性转换：healthy (adj. 健康的)；healthily (adv. 健康地) 固定搭配：digital health 数字健康；keep in good health 保持健康 例句：Too much screen time is bad for our health. 20. complaint /kəmˈpleɪnt/ n. 投诉；抱怨 词性转换：complain (v. 抱怨，投诉) 固定搭配：make a complaint 进行投诉 例句：Many users make complaints about virus software. 21. press /pres/ v. 按，压(使启动) 词性转换：pressed (adj. 按下的) 固定搭配：press the key 按键；press the button 按下按钮 例句：Press the key to restart the laptop. 22. inconvenience /ˌɪnkənˈviːniəns/ n. 不便；麻烦；困难 词性转换：inconvenient (adj. 不方便的)；convenience (n. 便利) 固定搭配：cause inconvenience 造成不便 例句：System breakdown causes great inconvenience. 23. repeat /rɪˈpiːt/ v. 重复；重做；重说 词性转换：repetition (n. 重复)；repeated (adj. 反复的) 固定搭配：repeat the operation 重复操作 例句：Do not repeat the wrong operation again. 24. couple /ˈkʌpl/ n. 几个人；几件事物 固定搭配：a couple of 几个；一对 例句：A couple of apps may carry hidden viruses. 25. freeze /friːz/ v. (屏幕)冻结 词性转换：froze (过去式)；frozen (过去分词/adj. 冻结的) 固定搭配：screen freeze 屏幕卡死冻结 例句：The laptop screen may freeze sometimes. 26. software /ˈsɒftweə(r)/ n. 软件 固定搭配：system software 系统软件；anti-virus software 杀毒软件 例句：Install safe anti-virus software regularly. 27. app /æp/ n. (= application) 应用程序；应用软件 词性转换：apps (pl.) 固定搭配：mobile apps 手机应用程序 例句：Download official apps only. 28. network /ˈnetwɜːk/ n. (互联)网络 词性转换：networks (pl.)；networked (adj. 联网的) 固定搭配：wireless network 无线网络 例句：Check the network before online study. 29. disabled /dɪsˈeɪbld/ adj. 有残疾的 词性转换：disable (v. 使失效、致残)；disability (n. 残疾) 固定搭配：disabled users 残障用户 例句：Special apps help disabled people use digital devices. 30. type /taɪp/ n. 类型；种类 v. 打字 词性转换：types (pl.)；typing (n. 打字) 固定搭配：different types of software 不同类型软件；type words 打字 例句：There are many types of anti-virus software. 31. blind /blaɪnd/ adj. 瞎的；失明的 词性转换：blindness (n. 失明)；blindly (adv. 盲目地) 固定搭配：blind users 视障用户 例句：Voice apps help blind people use smartphones. 32. detect /dɪˈtekt/ v. 发现；查明；侦察出 词性转换：detection (n. 检测)；detective (adj. 检测的) 固定搭配：detect virus 检测病毒 例句：Anti-virus software can detect hidden viruses. 33. object /ˈɒbdʒɪkt/ n. 物体；东西 词性转换：objects (pl.) 固定搭配：digital object 数字对象 例句：Touch screens can recognize different objects. 34. as soon as 一……就…… 例句：Shut down the laptop as soon as the screen freezes. 35. warn /wɔːn/ v. 提醒注意(可能发生的事)；使警惕 词性转换：warning (n./adj. 警告/警告的) 固定搭配：warn sb. of sth. 警告某人某事 例句：The system warns users of dangerous software. 36. direction /dəˈrekʃn; daɪˈrekʃn/ n. 方向；用法说明(常为复数) 词性转换：direct (adj./v. 直接的；指引)；directly (adv. 直接地) 固定搭配：follow directions 遵照说明；in all directions 四面八方 例句：Read the directions before using new software. 37. inform /ɪnˈfɔːm/ v. 知会；通知 词性转换：information (n. 信息)；informative (adj. 信息量大的) 固定搭配：inform sb. of sth. 通知某人某事 例句：The system informs users of virus risks. 38. report /rɪˈpɔːt/ n. 调查报告；报告 v. 报告 词性转换：reporter (n. 记者) 固定搭配：virus report 病毒报告；report problems 上报问题 例句：Please report unusual software problems quickly. 39. population /ˌpɒpjuˈleɪʃn/ n. (地区/国家等的)人口，人口数量 固定搭配：the whole population 全体人口 例句：A large population uses digital devices every day. 40. rural /ˈrʊərəl/ adj. 乡村的；农村的 固定搭配：rural areas 农村地区；rural network 乡村网络 例句：Digital technology also helps people in rural areas. 41. connection /kəˈnekʃn/ n. 连接 词性转换：connect (v. 连接)；connected (adj. 相连的) 固定搭配：network connection 网络连接；bluetooth connection 蓝牙连接 例句：Check the internet connection before online classes. 42. firefighting /ˈfaɪəfaɪtɪŋ/ n. 灭火；消防 固定搭配：firefighting system 消防系统 例句：AI helps improve modern firefighting work. 43. send /send/ v. 发送 词性转换：sent (过去式/过去分词) 固定搭配：send messages 发送信息；send emails 发送邮件 例句：Do not send private information online. 44. unit /ˈjuːnɪt/ n. 装置；机件 词性转换：units (pl.) 固定搭配：control unit 控制组件 例句：The core unit controls the whole laptop system. 45. opinion /əˈpɪnjən/ n. 意见；看法 固定搭配：in my opinion 依我看；personal opinion 个人看法 例句：People have different opinions about AI technology. 46. aware /əˈweə(r)/ adj. 意识到；明白 词性转换：awareness (n. 意识) 固定搭配：be aware of 知道；意识到；明白 例句：Be aware of hidden virus risks online. 47. disadvantage /ˌdɪsədˈvɑːntɪdʒ/ n. 不利因素 词性转换：advantage (n. 优势)；disadvantageous (adj. 不利的) 固定搭配：have a disadvantage 处于劣势 例句：Too much screen time has many disadvantages for health. 48. hide /haɪd/ v. 藏；隐蔽 词性转换：hid (过去式)；hidden (过去分词/adj. 隐藏的) 固定搭配：hide files 隐藏文件；hidden danger 隐患 例句：Some viruses hide inside unknown apps. 49. virus /ˈvaɪrəs/ n. 病毒 词性转换：viruses (pl.) 固定搭配：computer virus 电脑病毒 例句：We must protect laptops from computer viruses. 50. conclusion /kənˈkluːʒn/ n. 结束；结尾；结论 固定搭配：in conclusion 最后；draw a conclusion 得出结论 例句：In conclusion, use digital products wisely. 51. benefit /ˈbenɪfɪt/ n. 优势；益处；成效 v. 有益于 词性转换：beneficial (adj. 有益的)；beneficiality (n. 有益性) 固定搭配：benefit from 受益于；have many benefits 有很多益处 例句：We can benefit a lot from proper digital technology use. 单词专项练习 一、根据括号内的中文提示补全句子 1. We use many ________ (数码的) devices in daily study. 2. The company offers free technical ________ (支持) for laptops. 3. A light ________ (笔记本电脑) is very useful for online study. 4. Clean the computer ________ (键盘) regularly to keep it clean. 5. Connect the headset via ________ (蓝牙) correctly. 6. A new ________ (智能手机) can help us learn knowledge easily. 7. This wireless ________ (耳机) works well with digital devices. 8. A ________ (大量的) number of people use digital products every day. 9. Please make the sound ________ (听得清的) for online lessons. 10. Never leak ________ (私人的) information on public networks. 11. Do not ________ (触摸) the screen with wet hands. 12. This is a big ________ (触摸屏) on the new tablet. 13. What are the main ________ (优点) of AI technology? 14. The tiny ________ (芯片) controls the whole digital device. 15. Data moves at ________ (飞快的) speed across the network. 16. The old screen sometimes becomes ________ (紫色的). 17. ________ (人工智能) is developing very fast these years. 18. Please ________ (留神) the hidden risks of unknown apps. 19. Long screen time is bad for people’s ________ (健康). 20. Users may make a ________ (投诉) about unsafe software. 21. Please ________ (按) the key to restart the frozen screen. 22. Bad software brings great ________ (不便) to daily work. 23. Do not ________ (重复) the wrong operation on the device. 24. A ________ (几个) of apps may contain hidden computer viruses. 25. The screen may ________ (冻结) when the system breaks down. 26. Download safe ________ (软件) only from official websites. 27. Do not open unknown mobile ________ (应用程序). 28. Check the internet ________ (网络) before online classes. 29. Special apps help ________ (有残疾的) people use digital devices. 30. This is a new ________ (类型) of anti-virus software. 二、用括号内单词的正确形式填空 1. ________ (digit) learning becomes popular among students. 2. The local centre provides free technical ________ (support). 3. Two new ________ (laptop) are used in the computer room. 4. Clean the computer ________ (keyboard) every week. 5. Many new ________ (smartphone) come out every year. 6. These wireless ________ (headset) work with bluetooth. 7. A ________ (large) number of users use online learning apps now. 8. Please speak ________ (clear) during online meetings. 9. We should protect our ________ (private) information online. 10. The ________ (touch) screen is easy for children to operate. 11. We should take ________ (advantage) of good digital resources. 12. These computer ________ (chip) are made with new technology. 13. We should learn to find the ________ (advantage) of digital products. 14. Too much screen time is ________ (health) for teenagers. 15. Many users make ________ (complain) about unsafe apps. 16. The ________ (repeat) wrong operations may damage the system. 17. A couple of ________ (app) may carry hidden viruses. 18. The screen got ________ (freeze) suddenly during the lesson. 19. Different ________ (type) of software have different functions. 20. Voice software helps ________ (blind) people use smartphones. 21. The system can ________ (detect) dangerous computer viruses quickly. 22. We should be ________ (warn) of hidden risks online. 23. Read the ________ (direct) carefully before using new software. 24. The system ________ (inform) users about virus risks every day. 25. Please ________ (report) abnormal software problems immediately. 26. Good internet ________ (connect) is important for online study. 27. We should be fully ________ (aware) of digital safety risks. 28. Some viruses are ________ (hide) inside common apps. 29. New software can fight different computer ________ (virus). 30. We can get many ________ (benefit) from proper digital learning. 三、根据首字母提示完成句子 1. Many d______ devices help people study and work better. 2. The store offers good technical s______ for digital products. 3. A light l______ is popular with online learners. 4. Please clean the computer k______ regularly. 5. Connect the headset via b______ before online lessons. 6. Modern s______ make our daily life more convenient. 7. A l______ number of people use the internet every day. 8. Protect p______ information when using public networks. 9. Take a______ of good digital learning resources. 10. The tiny c______ makes modern digital devices work. 11. Keep an eye on unknown a______ to avoid computer viruses. 12. The screen may f______ when the system runs too many apps. 13. Anti-virus software can d______ and remove computer viruses. 14. The system will w______ users of dangerous software. 15. Follow the d______ before installing new software. 16. Be a______ of hidden virus risks in unknown apps. 17. Some v______ may damage laptops and smartphones. 18. In c______, we should use digital technology wisely. 19. We can b______ a lot from safe and useful digital apps. 20. Bad software brings much i______ to daily online study. 四、短文语法填空 Nowadays, ______(1) (digit) products change daily life greatly. A large number of people use ______(2) (laptop), smartphones and different ______(3) (type) of apps every day. AI technology develops at ______(4) (lightning) speed, bringing many ______(5) (benefit). However, digital products also have clear ______(6) (disadvantage). Hidden computer ______(7) (virus) may hide in unknown apps. Anti-virus software can ______(8) (detect) these dangers and warn users. Everyone should be fully ______(9) (aware) of online risks and protect ______(10) (private) information. Good network ______(11) (connect) and safe software help people learn and work easily. Special apps help ______(12) (disable) and blind users too. In ______(13) (conclude), we should take ______(14) (advantage) of digital technology properly, and keep an eye on health while using screens. We can truly benefit ______(15) smart digital life. 学科网（北京）股份有限公司 $