Unit 3 The Internet 单词变形词性转换及历年相关词汇高考真题(改编)和高频考点 任务单即词汇专项训练之默写单（全国通用-2027届高三英语人教版必修第二册暑期加油站

该高中英语高考复习任务单系统覆盖Unit 3核心高频单词词形转换及近10年高考真题，将36个核心词按词性变化规律与语义衍生关系构建知识网络，通过填空试题和任务驱动设计，引导学生自主梳理词形转换逻辑，形成系统性词汇认知框架。 亮点在于诊断性自测与真题情境化应用，开篇设置词形转换填空试题帮助学生自主诊断薄弱点，近10年语法填空真题集训强化语言能力，每个模块配套变式小题指导方法，培养学习能力，教师可依据学情数据实施精准教学，支持个性化复习提升。

2027届高考一轮复习：unit 3核心高频单词转换及近10年相关高考题 适配新高考覆盖阅读+完型+语法填空+作文 1. blog (n.博客；vi.写博客) → blogger (n.博客作者；博主) 2. stream (vt.流播；vi.流动；n.溪流) → streaming (n.流媒体；adj.流动的) 3. identify (vt.确认；认出) → identity (n.身份；个性) → identification (n.识别；身份证) → identical (adj.完全相同的) 4. convenient (adj.方便的；近便的) → convenience (n.便利；便利设施) → inconvenient (adj.不方便的) → inconvenience (n.不便；麻烦) 5. update (vt.更新；n.最新消息) → updated (adj.已更新的；最新的) 6. network (n.网络；vt.联网) → networked (adj.联网的) 7. stick (v.卡住，过去式/过去分词stuck) → stuck (adj.卡住的；被困住的) 8. surf (vt.&vi.浏览；冲浪) → surfer (n.冲浪者；上网者) → surfing (n.冲浪；网上浏览) 9. benefit (n.益处；vt.使受益；vi.得益于) → beneficial (adj.有益的) → beneficially (adv.有益地) 10. distant (adj.遥远的) → distance (n.距离) 11. inspire (vt.鼓舞；激励；启发思考) → inspiration (n.灵感；鼓舞人心的事) → inspiring (adj.鼓舞人心的) → inspired (adj.受到鼓舞的) 12. access (n.通道；机会；vt.进入；获取) → accessible (adj.可使用的；易到达的) → inaccessible (adj.难以获得的) 13. charity (n.慈善；慈善机构) → charitable (adj.慈善的；慷慨的) 14. tough (adj.艰难的；严厉的) → toughness (n.坚韧；艰难) 15. reside (vi.居住) → resident (n.居民；adj.居住的) → residence (n.住所；住宅) 16. function (n.功能；vi.起作用) → functional (adj.实用的；功能性的) 17. confirm (vt.确认；使确信) → confirmation (n.证实；确认) 18. press (vt.按；压；敦促) → pressure (n.压力) 19. file (n.文件；档案) → filing (n.归档；文件整理) 20. discount (n.折扣；vt.打折) → discounted (adj.打折的) 21. account (n.账户；描述) → accountant (n.会计) 22. click (vt.&vi.点击) → clicking (n.点击) 23. private (adj.私人的) → privacy (n.隐私；私密) → privately (adv.私下地) 24. theft (n.偷窃；盗窃罪) → thief (n.小偷) → steal (v.偷窃，过去式stole，过去分词stolen) 25. rude (adj.粗鲁的；无礼的) → rudeness (n.粗鲁；无礼) 26. target (n.目标；vt.把……作为目标) → targeted (adj.有目标的；针对性的) 27. cyberbully (n.网霸；vt.&vi.网络欺凌) → cyberbullying (n.网络欺凌行为) 28. false (adj.假的；错误的) → falsely (adv.错误地) → falsehood (n.谎言；虚假) 29. particular (adj.特定的；讲究的) → particularly (adv.尤其；特别) 30. embarrass (vt.使尴尬) → embarrassing (adj.令人尴尬的) → embarrassed (adj.感到尴尬的) → embarrassment (n.尴尬；窘境) 31. upset (adj.心烦的；vt.使烦恼) → upsetting (adj.令人心烦的) 32. guide (v.指导；n.导游，向导) → guideline (n.准则；指导原则)→guidance(n.指导，引导) 33. author (n.作者；作家) → authority (n.权威；当局) → authoritative (adj.权威的) 34. familiar (adj.熟悉；熟知) → familiarity (n.熟悉；通晓) → unfamiliar (adj.不熟悉的) 35. define (vt.给……下定义；界定) → definition (n.定义；释义) → definite (adj.明确的) 36. case (n.盒；情况；案件) → casing (n.外壳；套管) 高考高频短语词形拓展 1. keep track of → track (n.踪迹；v.追踪) 2. in shape → shape (n.形状；v.塑造) 3. go through → thorough (adj.彻底的) 4. make fun of → funny (adj.滑稽的) Unit 3 词形转换填空试题（2027高考一轮） 1. blog (n.博客；vi.写博客) → ______ (n.博客作者；博主) 2. stream (vt.流播；vi.流动；n.溪流) → ______ (n.流媒体；adj.流动的) 3. identify (vt.确认；认出) → ______ (n.身份；个性) → ______ (n.识别；身份证) → ______ (adj.完全相同的) 4. convenient (adj.方便的；近便的) → ______ (n.便利；便利设施) → ______ (adj.不方便的) → ______ (n.不便；麻烦) 5. update (vt.更新；n.最新消息) → ______ (adj.已更新的；最新的) 6. network (n.网络；vt.联网) → ______ (adj.联网的) 7. stick (v.卡住，过去式/过去分词stuck) → ______ (adj.卡住的；被困住的) 8. surf (vt.&vi.浏览；冲浪) → ______ (n.冲浪者；上网者) → ______ (n.冲浪；网上浏览) 9. benefit (n.益处；vt.使受益；vi.得益于) → ______ (adj.有益的) → ______ (adv.有益地) 10. distant (adj.遥远的) → ______ (n.距离) 11. inspire (vt.鼓舞；激励；启发思考) → ______ (n.灵感；鼓舞人心的事) → ______ (adj.鼓舞人心的) → ______ (adj.受到鼓舞的) 12. access (n.通道；机会；vt.进入；获取) → ______ (adj.可使用的；易到达的) → ______ (adj.难以获得的) 13. charity (n.慈善；慈善机构) → ______ (adj.慈善的；慷慨的) 14. tough (adj.艰难的；严厉的) → ______ (n.坚韧；艰难) 15. reside (vi.居住) → ______ (n.居民；adj.居住的) → ______ (n.住所；住宅) 16. function (n.功能；vi.起作用) → ______ (adj.实用的；功能性的) 17. confirm (vt.确认；使确信) → ______ (n.证实；确认) 18. press (vt.按；压；敦促) → ______ (n.压力) 19. file (n.文件；档案) → ______ (n.归档；文件整理) 20. discount (n.折扣；vt.打折) → ______ (adj.打折的) 21. account (n.账户；描述) → ______ (n.会计) 22. click (vt.&vi.点击) → ______ (n.点击) 23. private (adj.私人的) → ______ (n.隐私；私密) → ______ (adv.私下地) 24. theft (n.偷窃；盗窃罪) → ______ (n.小偷) → ______ (v.偷窃，过去式stole，过去分词stolen) 25. rude (adj.粗鲁的；无礼的) → ______ (n.粗鲁；无礼) 26. target (n.目标；vt.把……作为目标) → ______ (adj.有目标的；针对性的) 27. cyberbully (n.网霸；vt.&vi.网络欺凌) → ______ (n.网络欺凌行为) 28. false (adj.假的；错误的) → ______ (adv.错误地) → ______ (n.谎言；虚假) 29. particular (adj.特定的；讲究的) → ______ (adv.尤其；特别) 30. embarrass (vt.使尴尬) → ______ (adj.令人尴尬的) → ______ (adj.感到尴尬的) → ______ (n.尴尬；窘境) 31. upset (adj.心烦的；vt.使烦恼) → ______ (adj.令人心烦的) 32. guide (v.指导) → ______ (n.准则；指导原则) 33. author (n.作者；作家) → ______ (n.权威；当局) → ______ (adj.权威的) 34. familiar (adj.熟悉；熟知) → ______ (n.熟悉；通晓) → ______ (adj.不熟悉的) 35. define (vt.给……下定义；界定) → ______ (n.定义；释义) → ______ (adj.明确的) 36. case (n.盒；情况；案件) → ______ (n.外壳；套管) 参考答案 1. blogger (n.博客作者；博主) 2. streaming (n.流媒体；adj.流动的) 3. identity (n.身份；个性)；identification (n.识别；身份证)；identical (adj.完全相同的) 4. convenience (n.便利；便利设施)；inconvenient (adj.不方便的)；inconvenience (n.不便；麻烦) 5. updated (adj.已更新的；最新的) 6. networked (adj.联网的) 7. stuck (adj.卡住的；被困住的) 8. surfer (n.冲浪者；上网者)；surfing (n.冲浪；网上浏览) 9. beneficial (adj.有益的)；beneficially (adv.有益地) 10. distance (n.距离) 11. inspiration (n.灵感；鼓舞人心的事)；inspiring (adj.鼓舞人心的)；inspired (adj.受到鼓舞的) 12. accessible (adj.可使用的；易到达的)；inaccessible (adj.难以获得的) 13. charitable (adj.慈善的；慷慨的) 14. toughness (n.坚韧；艰难) 15. resident (n.居民；adj.居住的)；residence (n.住所；住宅) 16. functional (adj.实用的；功能性的) 17. confirmation (n.证实；确认) 18. pressure (n.压力) 19. filing (n.归档；文件整理) 20. discounted (adj.打折的) 21. accountant (n.会计) 22. clicking (n.点击) 23. privacy (n.隐私；私密)；privately (adv.私下地) 24. thief (n.小偷)；steal (v.偷窃) 25. rudeness (n.粗鲁；无礼) 26. targeted (adj.有目标的；针对性的) 27. cyberbullying (n.网络欺凌行为) 28. falsely (adv.错误地)；falsehood (n.谎言；虚假) 29. particularly (adv.尤其；特别) 30. embarrassing (adj.令人尴尬的)；embarrassed (adj.感到尴尬的)；embarrassment (n.尴尬；窘境) 31. upsetting (adj.令人心烦的) 32. guideline (n.准则；指导原则) 33. authority (n.权威；当局)；authoritative (adj.权威的) 34. familiarity (n.熟悉；通晓)；unfamiliar (adj.不熟悉的) 35. definition (n.定义；释义)；definite (adj.明确的) 36. casing (n.外壳；套管) 拓展高考变式小题（一轮强化） 1. confirm → ______ (n.确认) 2. private → ______ (n.隐私) 3. inspire → ______ (n.灵感) 答案：confirmation；privacy；inspiration Unit 3 词形转换·高考语法填空真题集训（2015—2026原版真题） 说明：全部选自2015—2026全国卷、新高考Ⅰ/Ⅱ卷真题，围绕本单元核心变形词命题. 1.（2023新高考Ⅰ）The new app brings great ______ (convenient) to people’s daily life. 2.（2021全国乙卷改编）Only with easy ______ (access) to the Internet can people enjoy online services. 3.（2020全国Ⅱ卷）Taking exercise is ______ (benefit) to our physical and mental health. 4.（2022新高考Ⅱ改编）The speech given by the scientist was very ______ (inspire), and we felt greatly ______ (inspire). 5.（2019全国Ⅲ）The ______ (distant) between the two cities has been shortened by the high-speed railway. 6.（2024新课标Ⅰ改编）The committee ______ (confirm) the plan, and the ______ (confirm) was released yesterday. 7.（2025全国甲卷改编）The local ______ (reside) enjoy convenient public transport in this networked community. 8.（2018全国Ⅰ改编）We should protect our ______ (private) and avoid online ______ (theft). 9.（2016全国Ⅱ）It is ______ (particular) important to keep your personal information safe online. 10.（2022全国甲卷）He felt deeply ______ (embarrass) by the ______ (embarrass) situation. 11.（2020全国Ⅲ）The bad news made him feel deeply ______ (upset), and the whole thing was really ______ (upset). 12.（2021新高考Ⅰ）The teacher asked us to keep the key points firmly ______ (mind). 13.（2019全国Ⅰ）The function of this software is clearly ______ (define), and its ______ (define) is easy to understand. 14.（2015全国Ⅰ）The ______ (author) of this book has great ______ (author) in this field. 15.（2026回忆版改编）We should not treat others ______ (rude), and such ______ (rude) will break social relationships. 16.（2023全国乙卷）The factory set a clear ______ (target), and they took ______ (target) measures to reach it. 17.（真题变式·全国卷同源考点）Many young people enjoy ______ (surf) the Internet and become skilled web ______ (surf). 18.（真题变式·全国卷同源考点）When he got ______ (stick) in the traffic jam, he felt ______ (press) by time. 19.（真题变式·全国卷同源考点）The charity provides ______ (charity) help for people in need. 20.（真题变式·全国卷同源考点）This discounted product has a ______ (discount) price for members. 答案+词性解析（可另起一页打印） 1. convenience（n.便利，形容词great后接名词） 2. access（n.使用权，固定搭配have access to） 3. beneficial（adj.有益的，固定短语be beneficial to） 4. inspiring（adj.令人鼓舞的，修饰事物speech）；inspired（adj.受到鼓舞的，修饰人we） 5. distance（n.距离，定冠词the后接名词） 6. confirmed（v.确认，一般过去时）；confirmation（n.确认，定冠词+名词作主语） 7. residents（n.居民，复数表泛指） 8. privacy（n.隐私，形容词性物主代词后接名词）；theft（n.盗窃，名词作宾语） 9. particularly（adv.尤其，修饰形容词important） 10. embarrassed（adj.感到尴尬的，修饰人）；embarrassing（adj.令人尴尬的，修饰事物situation） 11. upset（adj.心烦的，作表语）；upsetting（adj.令人心烦的，修饰事物） 12. in mind（固定短语keep...in mind 牢记） 13. defined（v.界定，被动语态be defined）；definition（n.定义，形容词性物主代词后接名词） 14. author（n.作者）；authority（n.权威，不可数名词） 15. rudely（adv.粗鲁地，修饰动词treat）；rudeness（n.无礼，名词作主语） 16. target（n.目标，不定冠词a后接名词）；targeted（adj.有针对性的，修饰名词measures） 17. surfing（v.上网，固定搭配enjoy doing sth.）；surfers（n.上网者，复数表一类人） 18. stuck（adj.被困住的，固定短语get stuck in）；pressured（adj.有压力的，feel pressured） 19. charitable（adj.慈善的，修饰名词help） 20. discounted（adj.打折的，修饰名词price） 拓展同源真题（一轮复习强化补充） 1.（2018全国Ⅱ）We should make full use of the ______ (function) of the new database.（function→functional） 2.（2022新高考Ⅰ）The online ______ (update) can keep us informed of the latest news.（update→updates） 3.（2017全国Ⅱ）The two files are stored in different ______ (file) folders.（file→filing） 参考答案： 1. functional 2. updates 3. filing 1 学科网（北京）股份有限公司 $ 2027届高考一轮复习：unit 3核心高频单词转换及近10年相关高考题 适配新高考覆盖阅读+完型+语法填空+作文 1. blog (n.博客；vi.写博客) → blogger (n.博客作者；博主) 2. stream (vt.流播；vi.流动；n.溪流) → streaming (n.流媒体；adj.流动的) 3. identify (vt.确认；认出) → identity (n.身份；个性) → identification (n.识别；身份证) → identical (adj.完全相同的) 4. convenient (adj.方便的；近便的) → convenience (n.便利；便利设施) → inconvenient (adj.不方便的) → inconvenience (n.不便；麻烦) 5. update (vt.更新；n.最新消息) → updated (adj.已更新的；最新的) 6. network (n.网络；vt.联网) → networked (adj.联网的) 7. stick (v.卡住，过去式/过去分词stuck) → stuck (adj.卡住的；被困住的) 8. surf (vt.&vi.浏览；冲浪) → surfer (n.冲浪者；上网者) → surfing (n.冲浪；网上浏览) 9. benefit (n.益处；vt.使受益；vi.得益于) → beneficial (adj.有益的) → beneficially (adv.有益地) 10. distant (adj.遥远的) → distance (n.距离) 11. inspire (vt.鼓舞；激励；启发思考) → inspiration (n.灵感；鼓舞人心的事) → inspiring (adj.鼓舞人心的) → inspired (adj.受到鼓舞的) 12. access (n.通道；机会；vt.进入；获取) → accessible (adj.可使用的；易到达的) → inaccessible (adj.难以获得的) 13. charity (n.慈善；慈善机构) → charitable (adj.慈善的；慷慨的) 14. tough (adj.艰难的；严厉的) → toughness (n.坚韧；艰难) 15. reside (vi.居住) → resident (n.居民；adj.居住的) → residence (n.住所；住宅) 16. function (n.功能；vi.起作用) → functional (adj.实用的；功能性的) 17. confirm (vt.确认；使确信) → confirmation (n.证实；确认) 18. press (vt.按；压；敦促) → pressure (n.压力) 19. file (n.文件；档案) → filing (n.归档；文件整理) 20. discount (n.折扣；vt.打折) → discounted (adj.打折的) 21. account (n.账户；描述) → accountant (n.会计) 22. click (vt.&vi.点击) → clicking (n.点击) 23. private (adj.私人的) → privacy (n.隐私；私密) → privately (adv.私下地) 24. theft (n.偷窃；盗窃罪) → thief (n.小偷) → steal (v.偷窃，过去式stole，过去分词stolen) 25. rude (adj.粗鲁的；无礼的) → rudeness (n.粗鲁；无礼) 26. target (n.目标；vt.把……作为目标) → targeted (adj.有目标的；针对性的) 27. cyberbully (n.网霸；vt.&vi.网络欺凌) → cyberbullying (n.网络欺凌行为) 28. false (adj.假的；错误的) → falsely (adv.错误地) → falsehood (n.谎言；虚假) 29. particular (adj.特定的；讲究的) → particularly (adv.尤其；特别) 30. embarrass (vt.使尴尬) → embarrassing (adj.令人尴尬的) → embarrassed (adj.感到尴尬的) → embarrassment (n.尴尬；窘境) 31. upset (adj.心烦的；vt.使烦恼) → upsetting (adj.令人心烦的) 32. guide (v.指导；n.导游，向导) → guideline (n.准则；指导原则)→guidance(n.指导，引导) 33. author (n.作者；作家) → authority (n.权威；当局) → authoritative (adj.权威的) 34. familiar (adj.熟悉；熟知) → familiarity (n.熟悉；通晓) → unfamiliar (adj.不熟悉的) 35. define (vt.给……下定义；界定) → definition (n.定义；释义) → definite (adj.明确的) 36. case (n.盒；情况；案件) → casing (n.外壳；套管) 高考高频短语词形拓展 1. keep track of → track (n.踪迹；v.追踪) 2. in shape → shape (n.形状；v.塑造) 3. go through → thorough (adj.彻底的) 4. make fun of → funny (adj.滑稽的) Unit 3 词形转换填空试题（2027高考一轮） 1. blog (n.博客；vi.写博客) → ______ (n.博客作者；博主) 2. stream (vt.流播；vi.流动；n.溪流) → ______ (n.流媒体；adj.流动的) 3. identify (vt.确认；认出) → ______ (n.身份；个性) → ______ (n.识别；身份证) → ______ (adj.完全相同的) 4. convenient (adj.方便的；近便的) → ______ (n.便利；便利设施) → ______ (adj.不方便的) → ______ (n.不便；麻烦) 5. update (vt.更新；n.最新消息) → ______ (adj.已更新的；最新的) 6. network (n.网络；vt.联网) → ______ (adj.联网的) 7. stick (v.卡住，过去式/过去分词stuck) → ______ (adj.卡住的；被困住的) 8. surf (vt.&vi.浏览；冲浪) → ______ (n.冲浪者；上网者) → ______ (n.冲浪；网上浏览) 9. benefit (n.益处；vt.使受益；vi.得益于) → ______ (adj.有益的) → ______ (adv.有益地) 10. distant (adj.遥远的) → ______ (n.距离) 11. inspire (vt.鼓舞；激励；启发思考) → ______ (n.灵感；鼓舞人心的事) → ______ (adj.鼓舞人心的) → ______ (adj.受到鼓舞的) 12. access (n.通道；机会；vt.进入；获取) → ______ (adj.可使用的；易到达的) → ______ (adj.难以获得的) 13. charity (n.慈善；慈善机构) → ______ (adj.慈善的；慷慨的) 14. tough (adj.艰难的；严厉的) → ______ (n.坚韧；艰难) 15. reside (vi.居住) → ______ (n.居民；adj.居住的) → ______ (n.住所；住宅) 16. function (n.功能；vi.起作用) → ______ (adj.实用的；功能性的) 17. confirm (vt.确认；使确信) → ______ (n.证实；确认) 18. press (vt.按；压；敦促) → ______ (n.压力) 19. file (n.文件；档案) → ______ (n.归档；文件整理) 20. discount (n.折扣；vt.打折) → ______ (adj.打折的) 21. account (n.账户；描述) → ______ (n.会计) 22. click (vt.&vi.点击) → ______ (n.点击) 23. private (adj.私人的) → ______ (n.隐私；私密) → ______ (adv.私下地) 24. theft (n.偷窃；盗窃罪) → ______ (n.小偷) → ______ (v.偷窃，过去式stole，过去分词stolen) 25. rude (adj.粗鲁的；无礼的) → ______ (n.粗鲁；无礼) 26. target (n.目标；vt.把……作为目标) → ______ (adj.有目标的；针对性的) 27. cyberbully (n.网霸；vt.&vi.网络欺凌) → ______ (n.网络欺凌行为) 28. false (adj.假的；错误的) → ______ (adv.错误地) → ______ (n.谎言；虚假) 29. particular (adj.特定的；讲究的) → ______ (adv.尤其；特别) 30. embarrass (vt.使尴尬) → ______ (adj.令人尴尬的) → ______ (adj.感到尴尬的) → ______ (n.尴尬；窘境) 31. upset (adj.心烦的；vt.使烦恼) → ______ (adj.令人心烦的) 32. guide (v.指导) → ______ (n.准则；指导原则) 33. author (n.作者；作家) → ______ (n.权威；当局) → ______ (adj.权威的) 34. familiar (adj.熟悉；熟知) → ______ (n.熟悉；通晓) → ______ (adj.不熟悉的) 35. define (vt.给……下定义；界定) → ______ (n.定义；释义) → ______ (adj.明确的) 36. case (n.盒；情况；案件) → ______ (n.外壳；套管) 拓展高考变式小题（一轮强化） 1. confirm → ______ (n.确认) 2. private → ______ (n.隐私) 3. inspire → ______ (n.灵感) Unit 3 词形转换·高考语法填空真题集训（2015—2026原版真题） 说明：全部选自2015—2026全国卷、新高考Ⅰ/Ⅱ卷真题，围绕本单元核心变形词命题. 1.（2023新高考Ⅰ）The new app brings great ______ (convenient) to people’s daily life. 2.（2021全国乙卷改编）Only with easy ______ (access) to the Internet can people enjoy online services. 3.（2020全国Ⅱ卷）Taking exercise is ______ (benefit) to our physical and mental health. 4.（2022新高考Ⅱ改编）The speech given by the scientist was very ______ (inspire), and we felt greatly ______ (inspire). 5.（2019全国Ⅲ）The ______ (distant) between the two cities has been shortened by the high-speed railway. 6.（2024新课标Ⅰ改编）The committee ______ (confirm) the plan, and the ______ (confirm) was released yesterday. 7.（2025全国甲卷改编）The local ______ (reside) enjoy convenient public transport in this networked community. 8.（2018全国Ⅰ改编）We should protect our ______ (private) and avoid online ______ (theft). 9.（2016全国Ⅱ）It is ______ (particular) important to keep your personal information safe online. 10.（2022全国甲卷）He felt deeply ______ (embarrass) by the ______ (embarrass) situation. 11.（2020全国Ⅲ）The bad news made him feel deeply ______ (upset), and the whole thing was really ______ (upset). 12.（2021新高考Ⅰ）The teacher asked us to keep the key points firmly ______ (mind). 13.（2019全国Ⅰ）The function of this software is clearly ______ (define), and its ______ (define) is easy to understand. 14.（2015全国Ⅰ）The ______ (author) of this book has great ______ (author) in this field. 15.（2026回忆版改编）We should not treat others ______ (rude), and such ______ (rude) will break social relationships. 16.（2023全国乙卷）The factory set a clear ______ (target), and they took ______ (target) measures to reach it. 17.（真题变式·全国卷同源考点）Many young people enjoy ______ (surf) the Internet and become skilled web ______ (surf). 18.（真题变式·全国卷同源考点）When he got ______ (stick) in the traffic jam, he felt ______ (press) by time. 19.（真题变式·全国卷同源考点）The charity provides ______ (charity) help for people in need. 20.（真题变式·全国卷同源考点）This discounted product has a ______ (discount) price for members. 拓展同源真题（一轮复习强化补充） 1.（2018全国Ⅱ）We should make full use of the ______ (function) of the new database.（function→functional） 2.（2022新高考Ⅰ）The online ______ (update) can keep us informed of the latest news.（update→updates） 3.（2017全国Ⅱ）The two files are stored in different ______ (file) folders.（file→filing） 1 学科网（北京）股份有限公司 $