28-高考核心688词汇 任务单-2027年高三英语二轮复习专项

该高中英语高考复习任务单系统覆盖高考高频词汇及多题型应用，以20个核心单词为基础，通过单词背诵、词义巩固、完形填空、语法填空、中英互译五个模块构建“记忆-理解-应用”的完整学习链，引导学生从孤立单词到语境运用自主搭建词汇知识网络，体现考点梳理的系统性和层次性。 亮点在于自主诊断与个性化复习设计，如Section A的默背跟踪表支持学生自测记忆效果，Section B的多义辨析题强化语境理解，培养语言能力和学习能力。完形填空结合语篇逻辑推理，提升思维品质，帮助学生自主发现薄弱环节，教师可依据学生完成情况精准指导，有效支持因材施教。

Leaf 28 Section A 单词背诵 Section B 词义巩固 Section C 完形填空 Section D 语法填空 Section E 中英互译 Section A 单词背诵 （使用时遮住英文或中文，一遍过则在方框内打勾，后续查漏补缺看未打勾单词。） 英文 中文 默背1 默背2 necessarily['nesəsərili] adv. 必然地；必定地 £ £ £ £ £ £ affordable[ə'fɔ:dəbl] adj. 支付得起的；不太昂贵的 £ £ £ £ £ £ desert['dezət] n. 沙漠；荒漠；v. 抛弃，遗弃；擅离 £ £ £ £ £ £ symbol['simbl] n. 象征；符号；标志 £ £ £ £ £ £ security[si'kju:riti] n. 安全；保障；证券 £ £ £ £ £ £ calculate['kælkjuleit] v. 计算；估计；打算 £ £ £ £ £ £ current['kʌrənt] adj. 现在的；当前的；流通的；n. 水流；电流；趋势 £ £ £ £ £ £ loose[lu:s] adj. 宽松的，松散的；不牢固的；v. 释放；松开 £ £ £ £ £ £ mild[maild] adj. 轻微的，温和的；淡味的；和善的 £ £ £ £ £ £ replace[ri'pleis] v. 取代；替换；归还；把… 放回原处 £ £ £ £ £ £ addiction[ə'dikʃən] n. 上瘾 (to)；沉溺；嗜好 £ £ £ £ £ £ resort[ri'zɔ:t] n.(度假) 胜地；手段；v. 诉诸，求助于（to） £ £ £ £ £ £ demonstrate['demənstreit] v. 证明，演示；示威游行；论证 £ £ £ £ £ £ accomplish[ə'kʌmpliʃ] v. 实现，完成；达到 £ £ £ £ £ £ absence['æbsns] n. 缺乏，缺席；不在；缺少 £ £ £ £ £ £ track[træk] v. 跟踪；追踪；n. 小路；轨道；足迹 £ £ £ £ £ £ straight[streit] adj. 直的；直接的；正直的；adv. 直接地；立即 £ £ £ £ £ £ wipe[waip] v. 擦；消除；涂上；n. 擦拭 £ £ £ £ £ £ vast[vɑ:st] adj. 广阔的；巨大的；大量的 £ £ £ £ £ £ literature['litərətʃə] n. 文学；文献；著作 £ £ £ £ £ £ Section B 词义巩固 （在括号中填写你认为合适的词义。） desert 【A】n. 沙漠；荒漠【B】v. 抛弃，遗弃；擅离 [ˈdezət] ①（ ）He deserted his family and left without a word. ②（ ）Few plants can grow in the dry desert. current 【A】adj. 现在的；当前的；流通的【B】n. 水流；电流 【C】n. 趋势 [ˈkʌrənt] ①（ ）The current situation requires quick action. ②（ ）Strong currents swept the boat away. ③（ ）People are influenced by the current of public opinion. loose 【A】adj. 宽松的，松散的；不牢固的 【B】v. 释放；松开 [luːs] ①（ ）The dog was loosed and ran into the woods. ②（ ）This loose shirt is comfortable in summer. resort 【A】n. (度假)胜地 【B】n. 手段 【C】v. 诉诸，求助于（to） [rɪˈzɔːt] ①（ ）You should not resort to cheating in exams. ②（ ）This coastal town is a popular holiday resort. ③（ ）Violence should be the last resort. track 【A】v. 跟踪；追踪 【B】n. 小路；轨道；足迹 [træk] ①（ ）The hunters tracked the animal through the forest. ②（ ）We found clear tracks left by wolves. straight 【A】adj. 直的；直接的；正直的 【B】adv. 直接地；立即 [streɪt] ①（ ）Go straight ahead and you will see the station. ②（ ）He is a straight man who always tells the truth. necessarily 【A】adv. 必然地；必定地 [ˈnesəsərɪli] ①（ ）Rich people are not necessarily happy. affordable 【A】adj. 支付得起的；不太昂贵的 [əˈfɔːdəbl] ①（ ）The government wants to build more affordable houses. symbol 【A】n. 象征；符号；标志 [ˈsɪmbl] ①（ ）The dove is a symbol of peace. security 【A】n. 安全；保障；证券 [sɪˈkjʊərəti] ①（ ）Everyone cares about public security. calculate 【A】v. 计算；估计；打算 [ˈkælkjuleɪt] ①（ ）We need to calculate the total cost carefully. mild 【A】adj. 轻微的，温和的；淡味的；和善的 [maɪld] ①（ ）We have mild weather in spring here. replace 【A】v. 取代；替换；归还；把…放回原处 [rɪˈpleɪs] ①（ ）Robots cannot completely replace human beings. addiction 【A】n. 上瘾(to)；沉溺；嗜好 [əˈdɪkʃən] ①（ ）Many teenagers suffer from mobile phone addiction. demonstrate 【A】v. 证明，演示；示威游行；论证 [ˈdemənstreɪt] ①（ ）The teacher demonstrated how to use the machine. accomplish 【A】v. 实现，完成；达到 [əˈkʌmplɪʃ] ①（ ）Only hard work can help you accomplish your goals. absence 【A】n. 缺乏，缺席；不在；缺少 [ˈæbsns] ①（ ）His absence made the meeting difficult to carry on. wipe 【A】v. 擦；消除；涂上；n. 擦拭 [waɪp] ①（ ）Time cannot wipe away the painful memory. vast 【A】adj. 广阔的；巨大的；大量的 [vɑːst] ①（ ）A vast number of people enjoy reading online. literature 【A】n. 文学；文献；著作 [ˈlɪtrətʃə] ①（ ）He majors in Chinese literature at university. Section C 完形填空 （阅读下面短文，从每题所给 A、B、C、D 四个选项中选出最佳选项。考察词义辨析、固定搭配、一词多义、语篇逻辑推理。） The ___1___ desert used to be regarded as a lifeless wasteland. Strong winds often blew ___2___ sand everywhere, worsening the local ecological environment and threatening living ___3___. In the ___4___ situation of ecological degradation, people did not choose to ___5___ to pessimism. Instead, numerous volunteers and workers devoted themselves to desert afforestation. Greening the desert is not ___6___ easy, but persistent efforts can definitely ___7___ remarkable results. Workers carefully ___8___ planting density and water demand to ensure every sapling can survive. They ___9___ dry and barren sand with fertile soil and drought-resistant plants. Under the ___10___ climate of desert areas, they stick to daily maintenance and firmly follow the growth ___11___ of vegetation. After decades of hard work, people have finally ___12___ the greening miracle. The once barren land has regained vitality, which fully ___13___ the power of human perseverance. Green belts stretching ___14___ have become a powerful ___15___ of ecological restoration, greatly improving regional environmental security. The ___16___ of desert greening proves that no difficulty is invincible. People’s active efforts can effectively ___17___ out ecological crises. Without perseverance and dedication, success is an absolute ___18___. Such touching deeds have also been recorded in relevant environmental ___19___, inspiring more people to participate in public welfare causes with ___20___ costs and higher efficiency. 1. A. vast B. stiff C. serene D. brittle 2. A. thick B. loose C. stable D. abrupt 3. A. security B. landmark C. diary D. fixation 4. A. current B. intense C. infinite D. chronic 5. A. resort B. swap C. supervise D. eradicate 6. A. financially B. necessarily C. exactly D. faithfully 7. A. accomplish B. refresh C. quantify D. exhibit 8. A. monitor B. calculate C. exclude D. revive 9. A. replace B. erase C. locate D. generate 10. A. infertile B. harsh C. temperate D. variable 11. A. emblem B. log C. track D. desire 12. A. validated B. accomplished C. purified D. reversed 13. A. demonstrates B. assesses C. observes D. withdraws 14. A. sprawling B. straight C. subtle D. thrifty 15. A. bulletin B. pursuit C. symbol D. assurance 16. A. success B. heritage C. sign D. guarantee 17. A. wipe B. recover C. estimate D. chase 18. A. impossibility B. certainty C. fantasy D. craving 19. A. record B. literature C. relic D. submission 20. A. limitless B. continual C. modest D. affordable Section D 语法填空 （使用括号中的单词的正确形式填空。） Entertainment is not ____________ (necessarily) bad, yet we should judge whether it is ____________ (affordable) for teenagers. The quiet ____________ (desert) island in the novel serves as a ____________ (symbol) of inner peace and spiritual ____________ (security). We can ____________ (calculate) how much time the ____________ (current) screen ____________ (addiction) wastes. Never ____________ (resort) to mobile phones to kill loneliness. Teachers ____________ (demonstrate) how ____________ (accomplish) self-control. In the ____________ (absence) of digital devices, we can ____________ (track) our thoughts and walk ____________ (straight) toward goals. We can ____________ (wipe) anxiety away by exploring the ____________ (vast) world of ____________ (literature). Real hobbies cannot be simply ____________ (replace) by screens. Section E 中英互译 1. Researchers calculate current costs and demonstrate how affordable equipment can replace loose old tools in vast desert regions. _______________________________________________________________________________ _______________________________________________________________________________ 2. Security officers track visitors’ movements straight and wipe out hidden risks caused by the absence of regular management. _______________________________________________________________________________ _______________________________________________________________________________ 3. 温和的劝导不一定奏效，许多人深陷成瘾问题，只能诉诸更加系统的干预手段。 _______________________________________________________________________________ _______________________________________________________________________________ 4. 经典文学作品是时代的象征，能够帮助我们完成自我反思，看清内心真实诉求。 _______________________________________________________________________________ _______________________________________________________________________________ 5. 不要轻易舍弃既定规划，稳定持续的努力才更容易实现心中远大目标。 _______________________________________________________________________________ _______________________________________________________________________________ 学科网（北京）股份有限公司 $ Leaf 28 Section A 单词背诵 Section B 词义巩固 Section C 完形填空 Section D 语法填空 Section E 中英互译 Section A 单词背诵 （使用时遮住英文或中文，一遍过则在方框内打勾，后续查漏补缺看未打勾单词。） 英文 中文 默背1 默背2 necessarily['nesəsərili] adv. 必然地；必定地 £ £ £ £ £ £ affordable[ə'fɔ:dəbl] adj. 支付得起的；不太昂贵的 £ £ £ £ £ £ desert['dezət] n. 沙漠；荒漠；v. 抛弃，遗弃；擅离 £ £ £ £ £ £ symbol['simbl] n. 象征；符号；标志 £ £ £ £ £ £ security[si'kju:riti] n. 安全；保障；证券 £ £ £ £ £ £ calculate['kælkjuleit] v. 计算；估计；打算 £ £ £ £ £ £ current['kʌrənt] adj. 现在的；当前的；流通的；n. 水流；电流；趋势 £ £ £ £ £ £ loose[lu:s] adj. 宽松的，松散的；不牢固的；v. 释放；松开 £ £ £ £ £ £ mild[maild] adj. 轻微的，温和的；淡味的；和善的 £ £ £ £ £ £ replace[ri'pleis] v. 取代；替换；归还；把… 放回原处 £ £ £ £ £ £ addiction[ə'dikʃən] n. 上瘾 (to)；沉溺；嗜好 £ £ £ £ £ £ resort[ri'zɔ:t] n.(度假) 胜地；手段；v. 诉诸，求助于（to） £ £ £ £ £ £ demonstrate['demənstreit] v. 证明，演示；示威游行；论证 £ £ £ £ £ £ accomplish[ə'kʌmpliʃ] v. 实现，完成；达到 £ £ £ £ £ £ absence['æbsns] n. 缺乏，缺席；不在；缺少 £ £ £ £ £ £ track[træk] v. 跟踪；追踪；n. 小路；轨道；足迹 £ £ £ £ £ £ straight[streit] adj. 直的；直接的；正直的；adv. 直接地；立即 £ £ £ £ £ £ wipe[waip] v. 擦；消除；涂上；n. 擦拭 £ £ £ £ £ £ vast[vɑ:st] adj. 广阔的；巨大的；大量的 £ £ £ £ £ £ literature['litərətʃə] n. 文学；文献；著作 £ £ £ £ £ £ Section B 词义巩固 （在括号中填写你认为合适的词义。） desert 【A】n. 沙漠；荒漠【B】v. 抛弃，遗弃；擅离 [ˈdezət] ①（ ）He deserted his family and left without a word. ②（ ）Few plants can grow in the dry desert. current 【A】adj. 现在的；当前的；流通的【B】n. 水流；电流 【C】n. 趋势 [ˈkʌrənt] ①（ ）The current situation requires quick action. ②（ ）Strong currents swept the boat away. ③（ ）People are influenced by the current of public opinion. loose 【A】adj. 宽松的，松散的；不牢固的 【B】v. 释放；松开 [luːs] ①（ ）The dog was loosed and ran into the woods. ②（ ）This loose shirt is comfortable in summer. resort 【A】n. (度假)胜地 【B】n. 手段 【C】v. 诉诸，求助于（to） [rɪˈzɔːt] ①（ ）You should not resort to cheating in exams. ②（ ）This coastal town is a popular holiday resort. ③（ ）Violence should be the last resort. track 【A】v. 跟踪；追踪 【B】n. 小路；轨道；足迹 [træk] ①（ ）The hunters tracked the animal through the forest. ②（ ）We found clear tracks left by wolves. straight 【A】adj. 直的；直接的；正直的 【B】adv. 直接地；立即 [streɪt] ①（ ）Go straight ahead and you will see the station. ②（ ）He is a straight man who always tells the truth. necessarily 【A】adv. 必然地；必定地 [ˈnesəsərɪli] ①（ ）Rich people are not necessarily happy. affordable 【A】adj. 支付得起的；不太昂贵的 [əˈfɔːdəbl] ①（ ）The government wants to build more affordable houses. symbol 【A】n. 象征；符号；标志 [ˈsɪmbl] ①（ ）The dove is a symbol of peace. security 【A】n. 安全；保障；证券 [sɪˈkjʊərəti] ①（ ）Everyone cares about public security. calculate 【A】v. 计算；估计；打算 [ˈkælkjuleɪt] ①（ ）We need to calculate the total cost carefully. mild 【A】adj. 轻微的，温和的；淡味的；和善的 [maɪld] ①（ ）We have mild weather in spring here. replace 【A】v. 取代；替换；归还；把…放回原处 [rɪˈpleɪs] ①（ ）Robots cannot completely replace human beings. addiction 【A】n. 上瘾(to)；沉溺；嗜好 [əˈdɪkʃən] ①（ ）Many teenagers suffer from mobile phone addiction. demonstrate 【A】v. 证明，演示；示威游行；论证 [ˈdemənstreɪt] ①（ ）The teacher demonstrated how to use the machine. accomplish 【A】v. 实现，完成；达到 [əˈkʌmplɪʃ] ①（ ）Only hard work can help you accomplish your goals. absence 【A】n. 缺乏，缺席；不在；缺少 [ˈæbsns] ①（ ）His absence made the meeting difficult to carry on. wipe 【A】v. 擦；消除；涂上；n. 擦拭 [waɪp] ①（ ）Time cannot wipe away the painful memory. vast 【A】adj. 广阔的；巨大的；大量的 [vɑːst] ①（ ）A vast number of people enjoy reading online. literature 【A】n. 文学；文献；著作 [ˈlɪtrətʃə] ①（ ）He majors in Chinese literature at university. desert：①【B】②【A】 current：①【A】②【B】③【C】 loose：①【B】②【A】 resort：①【C】②【A】③【B】 track：①【A】②【B】 straight：①【B】②【A】 necessarily：①【A】 affordable：①【A】 symbol：①【A】 security：①【A】 calculate：①【A】 mild：①【A】 replace：①【A】 addiction：①【A】 demonstrate：①【A】 accomplish：①【A】 absence：①【A】 wipe：①【A】 vast：①【A】 literature：①【A】 Section C 完形填空 （阅读下面短文，从每题所给 A、B、C、D 四个选项中选出最佳选项。考察词义辨析、固定搭配、一词多义、语篇逻辑推理。） The ___1___ desert used to be regarded as a lifeless wasteland. Strong winds often blew ___2___ sand everywhere, worsening the local ecological environment and threatening living ___3___. In the ___4___ situation of ecological degradation, people did not choose to ___5___ to pessimism. Instead, numerous volunteers and workers devoted themselves to desert afforestation. Greening the desert is not ___6___ easy, but persistent efforts can definitely ___7___ remarkable results. Workers carefully ___8___ planting density and water demand to ensure every sapling can survive. They ___9___ dry and barren sand with fertile soil and drought-resistant plants. Under the ___10___ climate of desert areas, they stick to daily maintenance and firmly follow the growth ___11___ of vegetation. After decades of hard work, people have finally ___12___ the greening miracle. The once barren land has regained vitality, which fully ___13___ the power of human perseverance. Green belts stretching ___14___ have become a powerful ___15___ of ecological restoration, greatly improving regional environmental security. The ___16___ of desert greening proves that no difficulty is invincible. People’s active efforts can effectively ___17___ out ecological crises. Without perseverance and dedication, success is an absolute ___18___. Such touching deeds have also been recorded in relevant environmental ___19___, inspiring more people to participate in public welfare causes with ___20___ costs and higher efficiency. 1. A. vast B. stiff C. serene D. brittle 2. A. thick B. loose C. stable D. abrupt 3. A. security B. landmark C. diary D. fixation 4. A. current B. intense C. infinite D. chronic 5. A. resort B. swap C. supervise D. eradicate 6. A. financially B. necessarily C. exactly D. faithfully 7. A. accomplish B. refresh C. quantify D. exhibit 8. A. monitor B. calculate C. exclude D. revive 9. A. replace B. erase C. locate D. generate 10. A. infertile B. harsh C. temperate D. variable 11. A. emblem B. log C. track D. desire 12. A. validated B. accomplished C. purified D. reversed 13. A. demonstrates B. assesses C. observes D. withdraws 14. A. sprawling B. straight C. subtle D. thrifty 15. A. bulletin B. pursuit C. symbol D. assurance 16. A. success B. heritage C. sign D. guarantee 17. A. wipe B. recover C. estimate D. chase 18. A. impossibility B. certainty C. fantasy D. craving 19. A. record B. literature C. relic D. submission 20. A. limitless B. continual C. modest D. affordable 解析： 1. 应填：A. vast。分析：句子意为“‘广阔的’沙漠曾被视为没有生命的荒地”，vast desert表示“广阔的沙漠”，强调面积辽阔。语法上vast为形容词修饰desert。排除：B.stiff（僵硬的，强调不灵活）；C.serene（宁静的，强调平静）；D.brittle（易碎的，强调脆弱）。 2. 应填：B. loose。分析：句子意为“强风常吹起‘松散的’沙尘”，loose sand表示“松散的沙子”，强调沙粒不紧实。语法上loose为形容词修饰sand。排除：A.thick（厚的，强调厚度）；C.stable（稳定的，强调牢固）；D.abrupt（突然的，强调突发性）。 3. 应填：A. security。分析：句子意为“威胁生物的‘安全’”，living security表示“生存安全”，强调生命安全。语法上security为名词，作threatening的宾语。排除：B.landmark（地标，强调标志性建筑）；C.diary（日记，语义不符）；D.fixation（固定，强调固定状态）。 4. 应填：A. current。分析：句子意为“在生态退化的‘当前’局势下”，current situation表示“当前局势”，强调现在的情况。语法上current为形容词修饰situation。排除：B.intense（强烈的，强调强度）；C.infinite（无限的，强调无穷）；D.chronic（慢性的，强调长期性）。 5. 应填：A. resort。分析：句子意为“人们并没有选择‘诉诸于’悲观”，resort to表示“诉诸于、求助于”，强调采取某种手段。语法上resort为不及物动词，后接介词to。排除：B.swap（交换，强调互换）；C.supervise（监督，强调管理）；D.eradicate（根除，强调消灭）。 6. 应填：B. necessarily。分析：句子意为“绿化沙漠‘未必’容易”，not necessarily表示“未必”，强调不是必然。语法上necessarily为副词修饰easy。排除：A.financially（财政上，强调经济方面）；C.exactly（确切地，强调精确）；D.faithfully（忠实地，强调忠诚）。 7. 应填：A. accomplish。分析：句子意为“持续努力一定可以‘取得’显著成果”，accomplish results表示“取得成果”，强调完成实现。语法上accomplish为及物动词，后接results。排除：B.refresh（刷新，强调更新）；C.quantify（量化，强调测量）；D.exhibit（展示，强调展出）。 8. 应填：B. calculate。分析：句子意为“工作人员仔细‘计算’种植密度和需水量”，calculate density表示“计算密度”，强调精确计算。语法上calculate为及物动词，后接density。排除：A.monitor（监控，强调持续观察）；C.exclude（排除，强调剔除）；D.revive（复苏，强调恢复活力）。 9. 应填：A. replace。分析：句子意为“他们‘替换’干燥贫瘠的沙土”，replace A with B表示“用B替换A”，强调替代。语法上replace为及物动词，后接sand。排除：B.erase（擦除，强调抹去）；C.locate（定位，强调确定位置）；D.generate（产生，强调创造）。 10. 应填：B.harsh。分析：句子意为“在沙漠地区‘恶劣’气候下”，。语法上temperate为形容词修饰climate。排除：A.infertile（贫瘠的，强调不肥沃）；C.temperate climate表示“温和气候”；D.variable（多变的，强调变化）。 11. 应填：C. track。分析：句子意为“坚定地遵循植被生长‘轨迹’”，growth track表示“生长轨迹”，强调发展路径。语法上track为名词，作follow的宾语。排除：A.emblem（象征，强调标志）；B.log（日志，强调记录）；D.desire（渴望，强调愿望）。 12. 应填：B. accomplished。分析：句子意为“人们终于‘实现了’绿化奇迹”，accomplished the miracle表示“实现了奇迹”，强调成功完成。语法上accomplished为及物动词过去式，后接miracle。排除：A.validated（验证，强调确认有效性）；C.purified（净化，强调清洁）；D.reversed（逆转，强调反向改变）。 13. 应填：A. demonstrates。分析：句子意为“充分‘展示了’人类毅力的力量”，demonstrates power表示“展示了力量”，强调清晰展现。语法上demonstrates为及物动词，后接power。排除：B.assesses（评估，强调判断）；C.observes（观察，强调观看）；D.withdraws（撤回，强调收回）。 14. 应填：B. straight。分析：句子意为“绵延‘笔直的’绿色带”，stretching straight表示“笔直延伸”，强调方向单一。语法上straight为副词修饰stretching。排除：A.sprawling（蔓延的，强调无计划扩张）；C.subtle（微妙的，强调难以察觉）；D.thrifty（节俭的，强调节约）。 15. 应填：C. symbol。分析：句子意为“成为生态恢复的强有力‘象征’”，powerful symbol表示“强有力的象征”，强调代表性。语法上symbol为名词，作become的宾语。排除：A.bulletin（公告，强调通知）；B.pursuit（追求，强调追赶）；D.assurance（保证，强调承诺）。 16. 应填：A. success。分析：句子意为“沙漠绿化的‘成功’证明”，success of greening表示“绿化的成功”，强调成就。语法上success为名词，作主语。排除：B.heritage（遗产，强调继承）；C.sign（标志，强调标记）；D.guarantee（保证，强调担保）。 17. 应填：A. wipe。分析：句子意为“可以有效‘消除’生态危机”，wipe out表示“消灭、消除”，强调彻底清除。语法上wipe为及物动词，后接crises。排除：B.recover（恢复，强调重新获得）；C.estimate（估计，强调推测）；D.chase（追逐，强调追赶）。 18. 应填：A. impossibility。分析：句子意为“成功是绝对的‘不可能’”，absolute impossibility表示“绝对不可能”，强调不可能实现。语法上impossibility为名词，作is的宾语。排除：B.certainty（确定性，强调确定）；C.fantasy（幻想，强调想象）；D.craving（渴望，强调强烈欲望）。 19. 应填：B. literature。分析：句子意为“被记录在相关环境‘文献’中”，environmental literature表示“环境文献”，强调书面记录。语法上literature为名词，作in的宾语。排除：A.record（记录，强调档案）；C.relic（遗迹，强调古代遗物）；D.submission（提交，强调呈递）。 20. 应填：D. affordable。分析：句子意为“以‘可承受的’成本和更高效率参与公益事业”，affordable costs表示“可承受的成本”，强调负担得起。语法上affordable为形容词修饰costs。排除：A.limitless（无限的，强调无限制）；B.continual（持续的，强调连续）；C.modest（适度的，强调不过分）。 Section D 语法填空 （使用括号中的单词的正确形式填空。） Entertainment is not ____________ (necessarily) bad, yet we should judge whether it is ____________ (affordable) for teenagers. The quiet ____________ (desert) island in the novel serves as a ____________ (symbol) of inner peace and spiritual ____________ (security). We can ____________ (calculate) how much time the ____________ (current) screen ____________ (addiction) wastes. Never ____________ (resort) to mobile phones to kill loneliness. Teachers ____________ (demonstrate) how ____________ (accomplish) self-control. In the ____________ (absence) of digital devices, we can ____________ (track) our thoughts and walk ____________ (straight) toward goals. We can ____________ (wipe) anxiety away by exploring the ____________ (vast) world of ____________ (literature). Real hobbies cannot be simply ____________ (replace) by screens. 解析： 1. 应填：necessarily。分析：句子意为“娱乐‘未必’是坏的”。副词necessarily修饰is，表示“必然地、一定地”，not necessarily表示“未必”。排除：necessary（形容词，不符合副词位置）。 2. 应填：affordable。分析：句子意为“判断它是否对青少年‘可负担的’”。形容词affordable作表语，表示“负担得起的”。排除：affordably（副词，不符合系动词is后接形容词的用法）。 3. 应填：desert。分析：句子意为“小说中安静的‘荒岛’”。名词desert作定语修饰island，表示“荒芜的、沙漠的”。排除：deserted（虽可表示“荒废的”，但desert island为固定搭配）。 4. 应填：symbol。分析：句子意为“作为内在平静和精神‘安全’的‘象征’”。冠词a后接可数名词单数symbol，表示“象征”。排除：symbols（复数形式，与a不搭配）。 5. 应填：security。分析：句子意为“精神‘安全/安宁’”。名词security为不可数名词，表示“安全、安宁”。排除：securities（复数形式，此处泛指用单数）。 6. 应填：calculate。分析：句子意为“我们可以‘计算’当前屏幕成瘾浪费了多少时间”。情态动词can后接动词原形calculate，表示“计算、估算”。排除：calculates（第三人称单数，不符合can后接原形规则）。 7. 应填：current。分析：句子意为“当前的”屏幕成瘾。形容词current修饰addiction，表示“当前的、目前的”。排除：currently（副词，不修饰名词）。 8. 应填：addiction。分析：句子意为“屏幕‘成瘾’”。名词addiction表示“成瘾、上瘾”，作wastes的主语。排除：addictions（复数形式，此处泛指用单数）。 9. 应填：resort。分析：句子意为“绝不‘诉诸于’手机来消除孤独”。Never后接动词原形resort，固定搭配resort to，表示“诉诸于、依靠”。排除：resorted（过去式，不符合Never后接原形规则）。 10. 应填：demonstrate。分析：句子意为“老师‘示范’如何实现自我控制”。主语Teachers为复数，一般现在时用demonstrate，表示“示范、展示”。排除：demonstrates（第三人称单数，与Teachers不匹配）。 11. 应填：accomplish。分析：句子意为“如何‘实现’自我控制”。how to后接动词原形accomplish，表示“实现、完成”。排除：accomplished（过去式，不符合to后接原形结构）。 12. 应填：absence。分析：句子意为“在数字设备的‘缺席/缺乏’下”。介词In后接名词absence，固定搭配in the absence of，表示“在缺乏……的情况下”。排除：absent（形容词，不符合名词位置）。 13. 应填：track。分析：句子意为“我们可以‘追踪’我们的想法”。情态动词can后接动词原形track，表示“追踪、跟踪”。排除：tracks（第三人称单数，不符合can后接原形规则）。 14. 应填：straight。分析：句子意为“‘径直地’朝着目标前进”。副词straight修饰walk，表示“径直地、笔直地”。排除：straightness（名词，不修饰动词）。 15. 应填：wipe。分析：句子意为“我们可以‘擦除’焦虑”。情态动词can后接动词原形wipe，表示“擦去、消除”，常与away搭配。排除：wipes（第三人称单数，不符合can后接原形规则）。 16. 应填：vast。分析：句子意为“探索‘广阔的’文学世界”。形容词vast修饰world，表示“广阔的、浩瀚的”。排除：vastly（副词，不修饰名词）。 17. 应填：literature。分析：句子意为“文学世界”。名词literature为不可数名词，表示“文学”。排除：literatures（复数形式，此处泛指用单数）。 18. 应填：replaced。分析：句子意为“真正的爱好不能被屏幕简单地‘替代’”。情态动词cannot后接be replaced，表示“被替代”，replace的过去分词为replaced。排除：replacing（现在分词，不符合被动结构）。 Section E 中英互译 1. Researchers calculate current costs and demonstrate how affordable equipment can replace loose old tools in vast desert regions. _______________________________________________________________________________ _______________________________________________________________________________ 2. Security officers track visitors’ movements straight and wipe out hidden risks caused by the absence of regular management. _______________________________________________________________________________ _______________________________________________________________________________ 3. 温和的劝导不一定奏效，许多人深陷成瘾问题，只能诉诸更加系统的干预手段。 _______________________________________________________________________________ _______________________________________________________________________________ 4. 经典文学作品是时代的象征，能够帮助我们完成自我反思，看清内心真实诉求。 _______________________________________________________________________________ _______________________________________________________________________________ 5. 不要轻易舍弃既定规划，稳定持续的努力才更容易实现心中远大目标。 _______________________________________________________________________________ _______________________________________________________________________________ 解析： 1.研究人员核算当下成本，论证平价设备如何在广袤荒漠地区替代老旧松动工具。 2.安保人员全程持续追踪访客动向，消除因常态化管理缺失带来的潜在隐患。 3.Mild persuasion does not necessarily work. Many people suffer from addiction and have to resort to more systematic intervention. 4.Classic literature works serve as symbols of times. They help us accomplish self-reflection and figure out our inner demands. 5.Do not abandon established plans casually. Steady and continuous efforts make it easier to realize your ambitious aims. 学科网（北京）股份有限公司 $