Unit 2 Digital life 知识梳理与同步练习 2026—2027学年沪教版（五四学制）八年级上册英语

**基本信息** 沪教版（五四学制）八年级上册英语Unit 2 Digital life同步练习，以“基础巩固-语法应用-语篇综合”分层设计，通过词汇、语法、情景对话及书面表达的递进训练，提升语言能力与思维品质。 **分层设计** |层次|知识覆盖|设计特色| |----|----------|----------| |基础层|核心词汇（拼写/辨析）|单词拼写（8题）、选词填空（5题），聚焦“smartphone”“password”等单元重点词，强化音形义结合| |进阶层|语法规则（while过去进行时/as soon as）|语法单选（10题）、完成句子（5题），通过“was doing...while...”等结构训练，落实语法应用| |综合层|语篇交际与书面表达|情景对话（5题）、书面表达（1题），创设“网络学习利弊”情境，融合观点表达与建议提出，提升综合语言运用能力|

Unit 2 Digital life 知识梳理与同步练习 2026—2027学年沪教版（五四学制）八年级上册英语 第一部分 核心知识超全梳理 一、单元主题与交际场景 主题：Digital life（数字生活） 核心交际场景： 1. 介绍各类数码设备、功能与用途； 2. 谈论网络使用的利弊、线上学习与社交； 3. 描述过去同时发生的两件事（while过去进行时）； 4. 提出合理使用电子产品、网络安全防护的建议； 5. 书面表达：我的数字生活/正确使用智能手机。 二、核心重点词汇（音标+词性+释义+拓展变形） 1. digital /ˈdɪdʒɪtl/ adj. 数字的，数码的 → digital products 数码产品 2. smartphone /ˈsmɑːtfəʊn/ n. 智能手机 3. tablet /ˈtæblət/ n. 平板电脑 4. screen /skriːn/ n. 屏幕；v. 筛查 5. connect /kəˈnekt/ v. 连接 → connect to/with 连接到…… 6. online /ˌɒnˈlaɪn/ adj.&adv. 在线的（地）→ online courses 网课 7. convenient /kənˈviːniənt/ adj. 方便的 → convenience n. 便利 8. advantage /ədˈvɑːntɪdʒ/ n. 优点，优势（反：disadvantage 缺点） 9. depend /dɪˈpend/ v. 依靠；取决于 → depend on 依靠，取决于 10. properly /ˈprɒpəli/ adv. 正确地，适当地 → proper adj. 合适的 11. virus /ˈvaɪrəs/ n. 病毒 12. password /ˈpɑːswɜːd/ n. 密码 13. download /ˌdaʊnˈləʊd/ v. 下载 ↔ upload v. 上传 14. opinion /əˈpɪnjən/ n. 观点，看法 → in my opinion 在我看来 15. realize /ˈriːəlaɪz/ v. 意识到，明白 16. hide /haɪd/ v. 隐藏（过去式hid，过去分词hidden） 三、必背核心短语 1. keep in touch with sb. 与某人保持联系 2. instead of (doing) sth. 代替；而不是 3. search for information 搜索信息 4. surf the Internet 上网 5. take photos 拍照 6. send messages 发信息 7. be popular with… 受……欢迎 8. keep an eye on 照看；关注 9. set a password 设置密码 10. protect personal information 保护个人信息 11. spend time (in) doing sth. 花费时间做某事 12. as soon as 一……就…… 四、核心语法精讲（单元两大重难点） 语法1：while 引导过去进行时（两个动作同时进行） 结构：主语+was/were doing … while + 主语+was/were doing 含义：正当某人在做A事时，另一个人正在做B事（两个长动作同步发生） 例句：I was chatting online while my mother was cooking dinner. （我在网上聊天的时候，妈妈正在做晚饭。） 语法2：as soon as 引导时间状语从句（主将从现） 结构：主句（一般将来时）+ as soon as + 从句（一般现在时） 含义：一……就……，动作前后紧密衔接 例句：I will download the app as soon as I get home. 我一到家就下载这个应用软件。 补充高频句型 1. It’s + adj. + for sb. to do sth. 对某人来说做某事是……的 It’s convenient for us to study online. 线上学习对我们来说很方便。 2. There are both advantages and disadvantages of… ……既有优点也有缺点 五、书面表达万能句式 1. In my opinion, digital technology changes our life greatly. 在我看来，数字技术极大地改变了我们的生活。 2. We should use smartphones properly instead of spending too much time on games. 我们应当合理使用手机，而非花太多时间玩游戏。 3. It’s necessary for us to protect our personal information online. 我们有必要在网上保护个人隐私信息。 同步分层练习题 班级：________ 姓名：________ 得分：________ 一、单词拼写（每空2分，共16分）根据首字母/中文提示写单词 1. We use s___________ to make phone calls and take photos.（智能手机） 2. You need a strong p___________ to lock your WeChat account.（密码） 3. This new app has many a___________, so it is popular with students.（优点） 4. Please c___________ your computer to the WiFi before class.（连接） 5. It is not safe to ___________ (下载) apps from unknown websites. 6. We should use digital products ___________ (正确地) in daily life. 7. In my ___________ (观点), we shouldn’t stay online too long. 8. The ___________ (屏幕) of this tablet is too small for reading articles. 二、选词填空（词形适当变化，每词只用一次，每题3分，共15分） advantage, depend, online, convenient, hide 1. One ___________ of shopping ___________ is that it saves much time. 2. Our plan for the picnic ___________ on the weather tomorrow. 3. Little Tom tried ___________ his toy phone behind the sofa. 4. It is ___________ to search for information on the Internet. 三、语法单项选择（每题2分，共20分） ( )1. I ______ an online class while my father ______ newspapers last night. A. took; read B. was taking; was reading C. take; reads ( )2. I will call you as soon as I ______ to the station. A. get B. will get C. got ( )3. We should do more reading ______ playing phone games all day. A. instead of B. because of C. thanks to ( )4. Success ______ on hard work rather than luck. A. depend B. depends C. depended ( )5. —Why do you set a new password? —To ______ my personal information from hackers(黑客). A. protect B. realize C. connect ( )6. You ______ open strange links. They may carry viruses. A. mustn’t B. needn’t C. can ( )7. She spends two hours ______ useful information every weekend. A. search B. searching C. to search ( )8. There are both good points and ______ of using social media. A. advantages B. disadvantages C. products ( )9. As soon as the rain ______, we will go out to fly kites. A. stops B. will stop C. stopped ( )10. My brother was watching videos ______ I was doing my English homework. A. since B. while C. when 四、完成句子（中文提示填空，横线作答，每空1分，共19分） 1. 我们可以通过微信和远方的朋友保持联系。 We can ________ ________ ________ our faraway friends by WeChat. 2. 他靠上网搜索信息来完成作业。 He ________ ________ searching online for information to finish his homework. 3. 一拿到新平板，她就会下载学习软件。 She ________ ________ study apps as soon as she gets her new tablet. 4. 当爸爸在工作时，妹妹正在网上听音乐。 Dad ________ ________ while his sister ________ ________ music online. 5. 在我看来，合理使用数码产品对青少年很重要。 ________ ________ ________, it’s important for teenagers to use digital products properly. 五、情景对话补全（从方框选句子，有一项多余，每题2分，共10分） A. I agree with you. B. What do you usually use your phone for? C. I’m searching for some history materials. D. But we should pay attention to online safety. E. Online study has many advantages, right? F. How do you connect your phone to WiFi? A: Hi, Lucy. What are you doing on your smartphone? B: 1.________ I need to finish my history homework. A: It’s so convenient to get information online. 2.________ B: Yes, but it also has disadvantages. Sometimes I spend too much time chatting online. A: 3.________ We should control our screen time. B: By the way, 4.________ A: I usually use it to take photos and keep in touch with my cousins. B: Sounds great. 5.________ We must protect our privacy. A: You’re right. I always set a difficult password for my phone. 六、书面表达（20分） 主题：My opinions on digital life（我的数字生活看法） 要求：80词左右，包含：①数码产品给生活带来的便利；②过度使用的弊端；③你的合理建议。 ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________________________________________ 参考答案汇总 一、单词拼写 1. smartphones 2. password 3. advantages 4. connect 5. download 6. properly 7. opinion 8. screen 二、选词填空 1. advantage; online 2. depends 3. to hide 4. convenient 三、语法单选 1.B 2.A 3.A 4.B 5.A 6.A 7.B 8.B 9.A 10.B 四、完成句子 1. keep in touch with 2. depends on 3. will download 4. was working; was listening 5. In my opinion 五、情景对话 1.C 2.E 3.A 4.B 5.D 六、书面表达参考范文 My opinions on digital life Now digital products are everywhere in our life. Smartphones and tablets make our study and life very convenient. We can search for knowledge, take online classes and keep in touch with friends easily. However, spending too much time on phones is bad for our eyes and study. Some students even lose themselves in online games. In my opinion, we should use digital products properly. We should make good use of their advantages and stay away from bad online habits. 学科网（北京）股份有限公司 $