Unit 3 Our digital lives Section 1 Experiencing and understanding language同步练习2026-2027学年沪教版八年级英语上册

**基本信息** 初中英语沪教版八年级上册Unit 3同步练，新授课场景下通过基础巩固、灵活应用到综合语篇的三层设计，实现词汇-句型-语篇的渐进式知识巩固，培养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|词形转换、短语互译|单一知识点直接应用，如screen复数形式、"数字生活"短语翻译，夯实语言基础| |进阶层|词形填空、句型转换|语法规则灵活运用，如用harm的形容词形式填空、主动变被动语态，提升语言应用能力| |综合应用层|语篇填空、补全对话|真实情境综合运用，如数字生活主题短文填空、平衡屏幕时间对话补全，发展思维品质与跨文化意识|

沪教版初中英语八年级上册 Unit 3 Our digital lives Section 1 Experiencing and understanding language 同步练习 一、词形转换 1. screen ________(复数) 2. digital ________(n. 数字；数位) 3. attend ________(n. 注意力；专心) 4. concentrate ________(n. 专注；集中) 5. harm ________(adj. 有害的) 6. avoid ________(adj. 可避免的) 7. depend ________(n. 依赖；依靠) 8. develop ________(n. 发展；开发) 9. spend ________(过去式/过去分词) 10. smart ________(n. 智能；机灵) 二、用所给词的适当形式填空 1. The ________(screen) of most modern phones are designed to be eye-friendly. 2. You need to pay more ________(attend) to your pronunciation when speaking English. 3. It’s well-known that too much screen time is ________(harm) to children’s growth. 4. Can you ________(concentrate) on your work when there’s noise around? 5. We should learn to ________(avoid) unnecessary digital distractions in class. 6. Too much ________(depend) on AI tools may make us lose our thinking ability. 7. The rapid ________(develop) of 5G technology has changed how we communicate. 8. Last summer holiday, I ________(spend) most of my time learning digital skills online. 9. A ________(digit) camera can take clearer photos than a traditional one. 10. The boy showed his ________(smart) by solving the digital puzzle quickly. 三、重点短语 1. 数字生活 ________________ 2. 集中注意力于 ________________ 3. 对……有害 ________________ 4. 避免做某事 ________________ 5. 依赖；依靠 ________________ 6. 花时间做某事 ________________ 7. 在线聊天 ________________ 8. 屏幕时间 ________________ 9. 离线活动 ________________ 10. 数字技术 ________________ 四、用所给短语的适当形式填空 digital lives, concentrate on, do harm to, avoid doing, depend on, spend time doing, chat online, screen time, offline activities, digital technology 1. With the help of ________, we can finish our work more efficiently. 2. Teenagers are advised to limit their ________ to no more than two hours daily. 3. My grandma likes to ________ with her old friends through WeChat every evening. 4. To keep healthy, we should take part in more ________ instead of staying indoors. 5. Staying up late playing online games will ________ your physical and mental health. 6. Please ________ your studies when you are doing homework. 7. We shouldn’t ________ digital devices completely for solving all problems. 8. Try to ________ using your phone in dim light to protect your eyes. 9. My little brother often ________ playing mobile games on weekends. 10. Our ________ are becoming more and more convenient with the development of the Internet. 五、按要求完成句子 concentrate / harm / avoid / depend / spend / digital 1. Students must ________ on their lessons to improve their grades. 2. Too much screen time can ________ people’s eyes and sleep quality. 3. You should ________ looking at screens for over two hours without breaks. 4. Many children ________ too much on their parents to set up digital accounts. 5. Last night, I ________ three hours watching educational documentaries online. 6. ________ technology has brought us both convenience and challenges. 六、句型转换 1. Spending too much time on digital devices is harmful to our health.（改为同义句） Spending too much time on digital devices ________ ________ to our health. 2. I began to use tablets for study when I entered middle school.（用since I entered middle school改写） I ________ ________ tablets for study since I entered middle school. 3. We can balance screen time by doing more offline activities.（对划线部分提问） ________ ________ we balance screen time? 4. People use digital devices to keep in touch with their relatives.（改为被动语态） Digital devices ________ ________ to keep in touch with relatives. 5. Have you ever spent more than five hours on digital devices in a day?（作否定回答） ________, ________ ________. 七、改错（每句一处错误，划出并改正） 1. Too much screen time do harm to our eyes and sleep. ____________________________________________________________________ 2. We should learn avoid using phones before going to bed. ____________________________________________________________________ 3. He spend about two hours playing online games every day. ____________________________________________________________________ 4. Many students depend in digital dictionaries to learn new words. ____________________________________________________________________ 5. Besides use digital products, we also need to do more outdoor sports. ____________________________________________________________________ 八、重点句子翻译 1. 长时间使用电子设备对我们的身心健康有害。 ____________________________________________________________________ 2. 我们应该学会平衡屏幕时间和离线活动。 ____________________________________________________________________ 3. 学生需要集中注意力在学习上，而不是沉迷于手机游戏。 ____________________________________________________________________ 4. 我们不应该过度依赖数字技术来完成所有学习任务。 ____________________________________________________________________ 5. 避免在睡前使用手机有助于提高睡眠质量。 ____________________________________________________________________ 6. 数字生活给我们带来了很多便利，但也存在一些潜在的问题。 ____________________________________________________________________ 九、语篇填空 阅读短文，从方框中选择适当的词并用其正确形式填空，使短文通顺、意思完整。每空限填一词，每词限用一次。 screen, digital, attention, concentrate, harm, avoid, depend, develop, spend, online, offline, technology, health, smart, necessary Nowadays, 1.________ technology has greatly 2.________ our daily lives. We use various 3.________ devices such as 4.________ phones, computers and tablets every day. However, spending too much time 5.________ can cause problems. It may take away our 6.________ and make it difficult to 7.________ on studies or work. What’s worse, it does great 8.________ to our 9.________, especially our eyes and sleep. To stay healthy, we should 10.________ using screens for long hours without breaks. We shouldn’t 11.________ too much on digital devices. Instead, we should 12.________ more time on 13.________ activities like playing sports, reading books or chatting with friends face to face. It’s 14.________ for us to keep a balance between digital lives and real life. Only in this way can we enjoy the benefits of digital technology without losing our 15.________ lifestyle. 十、补全对话 根据下面的对话情景，在每个空白处填上一个恰当的句子，使对话的意思连贯、完整。 A: Hi, Lily! How do you usually spend your free time after school? B: I usually scroll through short videos on my phone or play online games. 1. ________________________? A: I like to do some offline activities, like drawing pictures or playing badminton with my classmates. B: 2. ________________________? A: Because too much screen time is bad for our health. It can make our eyes tired and affect our study. B: You’re right. Sometimes I feel sleepy in class after playing phone games late. 3. ________________________? A: We can set a daily time limit for using digital devices, like one hour a day after school. B: That’s a good idea. 4. ________________________? A: Yes, I also try to read more books instead of using my phone before going to bed. B: 5. ________________________. I’ll follow your advice to balance my digital life and real life. 参考答案 一、词形转换 1. screens 2. digit 3. attention 4. concentration 5. harmful 6. avoidable 7. dependence 8. development 9. spent 10. smartness 二、用所给词的适当形式填空 1. screens 2. attention 3. harmful 4. concentrate 5. avoid 6. dependence 7. development 8. spent 9. digital 10. smartness 三、重点短语 1. digital lives 2. concentrate on 3. do harm to / be harmful to 4. avoid doing sth. 5. depend on 6. spend time (in) doing sth. 7. chat online 8. screen time 9. offline activities 10. digital technology 四、用所给短语的适当形式填空 1. digital technology 2. screen time 3. chat online 4. offline activities 5. do harm to 6. concentrate on 7. depend on 8. avoid doing 9. spends time doing 10. digital lives 五、按要求完成句子 1. concentrate 2. harm 3. avoid 4. depend 5. spent 6. Digital 六、句型转换 1. does harm 2. have used 3. How can 4. are used 5. No; I haven’t 七、改错 1. do → does（主语为不可数名词短语，谓语用第三人称单数） 2. learn avoid → learn to avoid（learn to do sth. 固定搭配） 3. spend → spends（主语为He，一般现在时谓语用第三人称单数） 4. in → on（depend on 固定搭配） 5. use → using（besides为介词，后接动名词） 八、重点句子翻译 1. Using electronic devices for a long time is harmful to our physical and mental health. 2. We should learn to balance screen time and offline activities. 3. Students need to concentrate on their studies instead of being addicted to mobile games. 4. We shouldn’t depend too much on digital technology to finish all learning tasks. 5. Avoiding using phones before going to bed helps improve sleep quality. 6. Digital lives have brought us much convenience, but there are also some potential problems. 九、语篇填空 1. digital 2. developed 3. smart 4. screen 5. online 6. attention 7. concentrate 8. harm 9. health 10. avoid 11. depend 12. spend 13. offline 14. necessary 15. healthy 十、补全对话（参考合理答案） 1. What about you 2. Why do you like offline activities better 3. What should we do to solve this problem 4. Do you have other good suggestions 5. That sounds great 学科网（北京）股份有限公司 $