Unit 2 Digital Life单元重点易错专项训练2026-2027学年沪教版（五四学制）八年级英语上册

**基本信息** 沪教版八年级上册Unit 2专项训练聚焦9大高频考点，通过“基础+提升+拓展”分层题型（81题），结合易错警示与详细解析，构建语法应用与议论文表达的系统训练体系，提升语言能力与思维品质。 **专项设计** |模块|题量/典例|方法提炼|知识逻辑| |----|-----------|----------|----------| |9大考点|每考点9题（3基础+3提升+3拓展）|①被动语态结构（have/has been done等）；②非谓语动词搭配（to do作主语、doing作宾语）；③从句时态呼应（主将从现等）；④短语辨析（lead to/result in等）|从基础语法（被动语态、非谓语、从句）到短语应用、比较级，再到议论文逻辑表达，形成“概念理解-结构辨析-语境运用”递进链条，培养学习能力|

沪教版(五四学制)八年级上册 Unit 2 Digital Life 重点易错专项训练 沪教版(五四学制)八年级上册 Unit 2 Digital Life 单元重点易错专项训练 题型：选择题(基础+提升) + 用适当形式填空(拓展) 共9大考点 x 9题 = 81题 | 含详细解析 说明：本卷所有题目紧扣沪教八年级上册Unit 2教材内容，涵盖现在完成时被动语态、情态动词被动语态、不定式作主语、动名词作宾语、时间/条件状语从句、核心短语、比较级最高级、议论文表达等9大高频考点。全部题目自主创新，答案唯一。 考点一：现在完成时的被动语态 (have/has been done) 【易错警示】易错点：① 结构：have/has + been + 过去分词；② 主语是动作的承受者；③ have/has 由主语单复数决定；④ 过去分词拼写要准确（如 discussed / replaced / developed）；⑤ 常与 recently / in recent years / since / for 连用 基础题：(选择题) ( ) 1. Many new digital apps ______ this year. A. develop B. developed C. have developed D. have been developed ( ) 2. The problem of cyberbullying ______ seriously in our school recently. A. has been discussed B. has discussed C. is discussing D. was discussing ( ) 3. Personal information ______ carefully by all of us. A. should protect B. should be protected C. should protected D. should be protect 提升题：(选择题) ( ) 1. Digital payment methods ______ greatly in the past few years. A. have changed B. have been changed C. changed D. were changed ( ) 2. Which sentence is in the Present Perfect Passive Voice? A. They have built a smart house. B. A smart house has been built by them. C. They are building a smart house. D. They will build a smart house. ( ) 3. Thousands of laptops ______ to students since last term. A. were given B. have given C. have been given D. are giving 拓展题：(用适当形式填空) ( ) 1. Social media ______ (use) by billions of people around the world today. ( ) 2. The digital camera ______ (invent) in the 1970s. ( ) 3. Personal data must ______ (protect) from being stolen online. 考点二：情态动词的被动语态 (can/must/should be done) 【易错警示】易错点：① 结构：情态动词 + be + 过去分词（be不可省略）；② 否定在情态动词后加not；③ 常见搭配：must be protected / should be avoided / can be seen / need to be done；④ 动作发出者用by引出（可省略） 基础题：(选择题) ( ) 1. Your password ______ to anyone else. A. shouldn't give B. shouldn't be given C. shouldn't been given D. should give ( ) 2. In a smart home, many devices ______ to the internet. A. can connect B. can be connect C. can be connected D. can connected ( ) 3. Private messages ______ by strangers online. A. must not read B. must not be read C. must not to read D. must be not read 提升题：(选择题) ( ) 1. Cyberbullying ______ at school. A. must stop B. must be stop C. must be stopped D. must stopped ( ) 2. Which of the following is WRONG? A. The computer can be repaired. B. The virus must be removed. C. The data should be backup. D. The password ought to be changed. ( ) 3. Your personal information ______ without your permission. A. needn't share B. needn't be shared C. needn't to be shared D. doesn't need share 拓展题：(用适当形式填空) ( ) 1. Online games should not ______ (play) for too long every day. ( ) 2. The virus on the computer must ______ (remove) at once. ( ) 3. Personal photos need ______ (protect) from being seen by strangers. 考点三：动词不定式作主语及 It is + adj. + to do 句型 【易错警示】易错点：① 不定式作主语时，常用It作形式主语放在句首，将真正主语to do放在句末；② It is important/necessary/convenient to do sth.；③ 否定形式：It is important not to do；④ too...to 表示'太...而不能'，如 too young to drive 基础题：(选择题) ( ) 1. ______ digital skills is very important for modern students. A. Learn B. Learns C. To learn D. Learned ( ) 2. It is very convenient ______ online nowadays. A. shop B. to shop C. shopping D. shops ( ) 3. It is necessary for teenagers ______ their personal information online. A. protect B. to protect C. protecting D. protected 提升题：(选择题) ( ) 1. Which sentence uses 'It' as a formal subject correctly? A. It to learn English is hard. B. It is hard learn English. C. It is hard to learn English. D. It is hard learning English. ( ) 2. He is too young ______ a social media account by himself. A. create B. to create C. creating D. creates ( ) 3. It is everyone's duty ______ careful when surfing the internet. A. be B. to be C. being D. been 拓展题：(用适当形式填空) ( ) 1. It is dangerous ______ (meet) strangers you met online in real life. ( ) 2. ______ (have) a balanced digital life is what we should aim for. ( ) 3. It is important ______ (not share) your password with anyone. 考点四：动名词作宾语 (enjoy/finish/practice/avoid/keep + doing) 【易错警示】易错点：① enjoy / finish / practice / avoid / keep / mind / suggest 后接动名词doing（不接to do）；② avoid doing = 避免做某事；③ practice doing = 练习做某事；④ keep doing = 持续做某事；⑤ 动名词的否定在前面加not 基础题：(选择题) ( ) 1. Many teenagers enjoy ______ online games in their free time. A. play B. to play C. playing D. played ( ) 2. We should avoid ______ too much personal information on social media. A. share B. to share C. sharing D. shared ( ) 3. Jam finished ______ his digital project at midnight. A. do B. to do C. doing D. done 提升题：(选择题) ( ) 1. Lily keeps ______ new apps to learn English better. A. download B. to download C. downloading D. downloaded ( ) 2. Which of the following is WRONG? A. She suggested going for a walk. B. He practiced to swim every day. C. They kept working until late. D. We enjoyed chatting online. ( ) 3. Chen Wu doesn't mind ______ his homework on the computer. A. do B. to do C. doing D. does 拓展题：(用适当形式填空) ( ) 1. Zhang Hui suggested ______ (use) digital tools to improve study efficiency. ( ) 2. The teacher advised us ______ (not spend) too much time on mobile phones. ( ) 3. They practised ______ (write) code for the school website. 考点五：时间状语从句 (when/while/as soon as + 时态呼应) 【易错警示】易错点：① when 可接短暂动作或延续动作；② while 后接延续动作，常接进行时；③ as soon as 主将从现（主句将来时，从句一般现在时）；④ 主祈从现：主句是祈使句，从句用一般现在时；⑤ when/while 引导的从句可放句首或句中 基础题：(选择题) ( ) 1. ______ you use the internet, you should be careful about your privacy. A. When B. While C. As soon as D. After ( ) 2. As soon as I ______ home, I will check my messages. A. get B. will get C. got D. am getting ( ) 3. Please turn off the computer when you ______ using it. A. finish B. will finish C. finished D. are finishing 提升题：(选择题) ( ) 1. ______ she was surfing the internet, her mother was cooking dinner. A. When B. While C. As soon as D. Before ( ) 2. Which sentence shows correct tense agreement? A. When it will rain, we stay at home. B. As soon as he will arrive, I will call you. C. While I was walking, it started to rain. D. After she will finish, she will go home. ( ) 3. Don't open strange emails ______ you don't know the sender. A. if B. when C. while D. as soon as 拓展题：(用适当形式填空) ( ) 1. ______ (when) I was young, I didn't have a smartphone. ( ) 2. As soon as the bell ______ (ring), the students closed their laptops. ( ) 3. Please call me as soon as you ______ (arrive) in Kunming. 考点六：条件状语从句 (if/unless + 主将从现) 【易错警示】易错点：① if 引导条件状语从句，主将从现（主句将来时，从句一般现在时）；② unless = if...not，本身含否定意义，句中不再用not；③ 主祈从现：主句是祈使句，if从句用一般现在时；④ 主情从现：主句有情态动词，从句用一般现在时 基础题：(选择题) ( ) 1. If you ______ your password safe, no one can use your account. A. keep B. will keep C. kept D. are keeping ( ) 2. You will be in trouble ______ you don't log out properly. A. if B. unless C. when D. as soon as ( ) 3. Unless we ______ careful, our personal data may be stolen. A. are B. will be C. were D. are going to be 提升题：(选择题) ( ) 1. ______ you don't update your antivirus software, your computer may get a virus. A. If B. Unless C. When D. As soon as ( ) 2. Which sentence is equal to 'Unless you study hard, you will fail'? A. If you study hard, you will fail. B. If you don't study hard, you will fail. C. When you study hard, you will fail. D. As soon as you study hard, you will fail. ( ) 3. If there ______ a problem with your laptop, please tell the teacher. A. is B. will be C. was D. are 拓展题：(用适当形式填空) ( ) 1. If it ______ (rain) tomorrow, we will stay at home and play online games. ( ) 2. Unless you ______ (have) a strong password, your account is not safe. ( ) 3. If everyone ______ (follow) the rules, the internet will be a safer place. 考点七：be connected to / depend on / lead to / result in 等单元核心短语辨析 【易错警示】易错点：① be connected to = 连接到（被动结构）；② depend on = 依赖/取决于；③ lead to = 导致（to是介词，后接名词或doing）；④ result in = 导致；⑤ be aware of = 意识到；⑥ keep an eye on = 留意/照看；⑦ pay attention to + doing 基础题：(选择题) ( ) 1. In a smart home, all devices ______ the internet. A. connect with B. are connected to C. are connecting to D. connect on ( ) 2. Spending too much time online may ______ health problems. A. lead to B. lead for C. lead with D. lead at ( ) 3. We should ______ the information we read on the internet. A. be aware B. be aware of C. be aware on D. be aware at 提升题：(选择题) ( ) 1. Your choice of apps ______ your personal needs. A. depends at B. depends on C. depends in D. depends for ( ) 2. Parents should ______ their children's online activities. A. keep an eye on B. keep an eye for C. keep an eye with D. keep an eye at ( ) 3. Which phrase means the SAME as 'lead to'? A. result in B. result from C. depend on D. connect to 拓展题：(用适当形式填空) ( ) 1. More screen time may lead to ______ (have) poor eyesight. ( ) 2. We must pay attention to ______ (protect) our privacy online. ( ) 3. The success of digital learning ______ (depend) on good self-control. 考点八：形容词比较级与最高级 (bigger/faster/most convenient) 及比较结构 【易错警示】易错点：① 规则变化：直接+er/est、e结尾+r/st、辅音+y变i+er/est、重读闭音节双写+er/est；② 多音节词用 more / most + 原级；③ than 用于比较级；④ one of the + 最高级 + 名词复数；⑤ even / much / a little 修饰比较级 基础题：(选择题) ( ) 1. Laptops are much ______ than desktops. A. light B. lighter C. lightest D. more light ( ) 2. Smartphones are ______ of all digital devices. A. convenient B. more convenient C. most convenient D. the most convenient ( ) 3. The new AI technology is far ______ than the old one. A. advanced B. more advanced C. most advanced D. the most advanced 提升题：(选择题) ( ) 1. Which sentence is CORRECT? A. This laptop is more faster than that one. B. This laptop is much faster than that one. C. This laptop is the faster of all. D. This laptop is more fast than that one. ( ) 2. The ______ you practise typing, the ______ you will become. A. much; fast B. more; faster C. most; fastest D. many; fast ( ) 3. Chen Wu thinks WeChat is one of ______ social media apps in China. A. popular B. more popular C. most popular D. the most popular 拓展题：(用适当形式填空) ( ) 1. Digital cameras are ______ (small) than traditional cameras. ( ) 2. This is the ______ (good) digital device I have ever used. ( ) 3. The internet makes our lives ______ and ______ (easy) (convenient). 考点九：in my opinion / in conclusion / however / although 议论文常用表达及逻辑关系 【易错警示】易错点：① in my opinion = 在我看来（放句首或句中）；② in conclusion = 总之/最后；③ however 表转折，用逗号隔开（不能连接两个独立句）；④ although 不与 but 连用；⑤ on the one hand...on the other hand... 对比两方面；⑥ have a positive/negative influence on 基础题：(选择题) ( ) 1. ______, digital life has both advantages and disadvantages. A. In my opinion B. In conclusion C. However D. Although ( ) 2. Smartphones are very useful. ______, they can also be addictive. A. And B. But C. However D. So ( ) 3. ______, we should use digital devices wisely. A. In my opinion B. In conclusion C. However D. Although 提升题：(选择题) ( ) 1. Social media has a strong influence ______ teenagers' daily lives. A. at B. on C. in D. for ( ) 2. Which transition word shows a CONTRAST correctly? A. And he is tall. However, his brother is short. B. He is tall. However his brother is short. C. He is tall; but, however, his brother is short. D. He is tall. However, because his brother is short. ( ) 3. On the one hand, the internet is helpful. On the other hand, it ______ be dangerous. A. must B. should C. can D. need 拓展题：(用适当形式填空) ( ) 1. ______ my opinion, online shopping is very convenient. ( ) 2. In ______ (conclude), we should balance our online and offline lives. ( ) 3. Digital technology has had a great influence ______ the way we communicate. 参考答案与详细解析 考点一：现在完成时的被动语态 (have/has been done) (1) 答案：D 解析：this year 是现在完成时标志，apps是develop的承受者，用have been developed。 (2) 答案：A 解析：recently 是现在完成时标志，problem与discuss是被动关系，用has been discussed。 (3) 答案：B 解析：information与protect是被动关系，should be protected（情态动词被动）。 (1) 答案：B 解析：in the past few years是现在完成时标志，methods与change是被动关系，用have been changed。 (2) 答案：B 解析：A smart house has been built by them 是现在完成时被动语态，主语是承受者。 (3) 答案：C 解析：since last term 是现在完成时标志，laptops与give是被动关系，用have been given。 (拓展1) 答案：is used 解析：Social media是use的承受者，today提示一般现在时，用is used。 (拓展2) 答案：was invented 解析：digital camera与invent是被动关系，in the 1970s用一般过去时，填was invented。 (拓展3) 答案：be protected 解析：must 后接 be + 过去分词，data与protect是被动关系，填be protected。 考点二：情态动词的被动语态 (can/must/should be done) (1) 答案：B 解析：password与give是被动关系，shouldn't be given（情态动词被动：should + be + 过去分词）。 (2) 答案：C 解析：devices与connect是被动关系，can be connected（情态动词被动结构）。 (3) 答案：B 解析：messages与read是被动关系，must not be read（否定被动）。 (1) 答案：C 解析：cyberbullying与stop是被动关系，must be stopped（must + be + 过去分词）。 (2) 答案：C 解析：C中backup应为过去分词backed up；正确应为should be backed up。 (3) 答案：B 解析：information与share是被动关系，needn't be shared（needn't后接be done）。 (拓展1) 答案：be played 解析：games与play是被动关系，should not be played。 (拓展2) 答案：be removed 解析：virus与remove是被动关系，must be removed。 (拓展3) 答案：to be protected 解析：need to be done = need doing，data与protect是被动关系，填to be protected。 考点三：动词不定式作主语及 It is + adj. + to do 句型 (1) 答案：C 解析：To learn 作主语，表示'学习数字技能'。也可用It作形式主语：It is important to learn... (2) 答案：B 解析：It is convenient to do sth. 固定句型，to shop作真正主语。 (3) 答案：B 解析：It is necessary (for sb.) to do sth. 不定式作真正主语，填to protect。 (1) 答案：C 解析：It is + adj. + to do 句型，C正确：It is hard to learn English. (2) 答案：B 解析：too...to 句型 = 太...而不能，too young to create（不定式作结果状语）。 (3) 答案：B 解析：It is one's duty to do sth. 不定式作真正主语，填to be。 (拓展1) 答案：to meet 解析：It is dangerous to do sth. 不定式作真正主语，填to meet。 (拓展2) 答案：To have 解析：To have 作主语，置于句首，首字母大写，表示'拥有平衡的数字生活'。 (拓展3) 答案：not to share 解析：It is important (not) to do sth. 否定形式在不定式前加not，填not to share。 考点四：动名词作宾语 (enjoy/finish/practice/avoid/keep + doing) (1) 答案：C 解析：enjoy doing sth. 喜欢做某事，play的动名词是playing。 (2) 答案：C 解析：avoid doing sth. 避免做某事，share的动名词是sharing。 (3) 答案：C 解析：finish doing sth. 完成做某事，do的动名词是doing。 (1) 答案：C 解析：keep doing sth. 持续做某事，download的动名词是downloading。 (2) 答案：B 解析：B错：practice后应接doing，不是to do。正确为practice swimming。 (3) 答案：C 解析：mind doing sth. 介意做某事，do的动名词是doing。 (拓展1) 答案：using 解析：suggest doing sth. 建议做某事，use的动名词是using。 (拓展2) 答案：not to spend 解析：. (拓展3) 答案：writing 解析：practice doing sth. 练习做某事，write的动名词是writing。 考点五：时间状语从句 (when/while/as soon as + 时态呼应) (1) 答案：A 解析：when 引导时间状语从句，表示'当你使用互联网时'，从句用一般现在时。 (2) 答案：A 解析：as soon as 主将从现，从句用一般现在时get（不用will get）。 (3) 答案：A 解析：主祈从现：主句是祈使句(Please turn off)，when从句用一般现在时finish。 (1) 答案：B 解析：while 强调两件事同时发生，常接进行时，此处while she was surfing（她上网的同时）。 (2) 答案：C 解析：C正确：While I was walking（过去进行时），it started to rain（一般过去时）。 (3) 答案：A 解析：if 引导条件状语从句，主祈从现：Don't...if you don't know（从句一般现在时）。 (拓展1) 答案：When 解析：When I was young 引导时间状语从句，表示'当我年轻时'，首字母大写。 (拓展2) 答案：rings 解析：as soon as 主将从现，主句用一般过去时closed，从句用一般现在时rings（第三人称单数）。 (拓展3) 答案：arrive 解析：as soon as 主将从现，主句用一般将来时will call，从句用一般现在时arrive。 考点六：条件状语从句 (if/unless + 主将从现) (1) 答案：A 解析：if 主将从现，主句用一般将来时(will be)，从句用一般现在时keep。 (2) 答案：A 解析：if 引导条件状语从句，主将从现，从句用一般现在时don't log out。 (3) 答案：A 解析：unless = if...not，本身含否定，句中不再用not。主将从现，从句用are。 (1) 答案：A 解析：if 主将从现，主句用一般将来时will be，从句用一般现在时is（第三人称单数）。 (2) 答案：B 解析：Unless = If...not，B句unless you study hard = if you don't study hard，意思一致。 (3) 答案：A 解析：if 主将从现，主句是祈使句(Please tell)，从句用一般现在时is（there be句型）。 (拓展1) 答案：rains 解析：if 主将从现，主句用一般将来时will stay，从句用一般现在时rains（第三人称单数）。 (拓展2) 答案：have 解析：unless 主将从现，主句用一般将来时is not safe，从句用一般现在时have（you是第二人称）。 (拓展3) 答案：follows 解析：if 主情从现，主句有情态动词will be，从句用一般现在时follows（everyone是三单）。 考点七：be connected to / depend on / lead to / result in 等核心短语 (1) 答案：B 解析：be connected to = 连接到，devices是connect的承受者，用被动语态are connected to。 (2) 答案：A 解析：lead to = 导致，to是介词，后接名词health problems。 (3) 答案：B 解析：be aware of = 意识到，固定搭配，of后接名词information。 (1) 答案：B 解析：depend on = 依赖/取决于，固定搭配，on是介词。 (2) 答案：A 解析：keep an eye on = 留意/照看，固定短语。 (3) 答案：A 解析：result in = 导致，与lead to同义。result from = 由...引起（因果相反）。 (拓展1) 答案：having 解析：lead to 中to是介词，后接动名词having（不是动词原形have）。 (拓展2) 答案：protecting 解析：pay attention to + doing，to是介词，protect的动名词是protecting。 (拓展3) 答案：depends 解析：depend on 随主语success变化，success是不可数名词，用depends。 考点八：形容词比较级与最高级 (1) 答案：B 解析：than 提示用比较级，light的比较级是lighter（规则变化直接+er）。 (2) 答案：D 解析：of all 提示用最高级，convenient是多音节词，最高级是the most convenient。 (3) 答案：B 解析：than 提示用比较级，advanced是多音节词，比较级是more advanced。 (1) 答案：B 解析：B正确：much修饰比较级faster，much faster than（不是more faster）。 (2) 答案：B 解析：The more...the more/faster...句型，practise的比较级用more，become的比较级用faster。 (3) 答案：D 解析：one of the + 最高级 + 名词复数，popular的最高级是the most popular。 (拓展1) 答案：smaller 解析：than 提示用比较级，small的比较级是smaller。 (拓展2) 答案：best 解析：the + 最高级，good的最高级是best（不规则变化）。 (拓展3) 答案：easier more convenient 解析：and 连接两个并列比较级，easy的比较级是easier，convenient的比较级是more convenient。 考点九：in my opinion / in conclusion / however / although 议论文常用表达 (1) 答案：A 解析：In my opinion = 在我看来，放在句首引出个人观点。 (2) 答案：C 解析：However 表转折，用逗号与前后隔开，表示'然而它们也可能让人上瘾'。 (3) 答案：B 解析：In conclusion = 总之/最后，放在句首总结全文。 (1) 答案：B 解析：have a strong influence on = 对...有重大影响，固定搭配用on。 (2) 答案：A 解析：However 表转折时前后用逗号隔开，A正确：And he is tall. However, his brother is short. (3) 答案：C 解析：can 表示可能性，句意：另一方面，它可能会很危险。 (拓展1) 答案：In 解析：In my opinion 是固定搭配，in置于句首大写。 (拓展2) 答案：conclusion 解析：in conclusion = 总之，conclude的名词形式是conclusion。 (拓展3) 答案：on 解析：have an influence on = 对...有影响，固定搭配用on。 第 页 学科网（北京）股份有限公司 $