📅 2026-07-01 每日必背单词 — CET-4 ×5 / CET-6 ×5 / TEM-8 ×5 （所选单词均未出现在你提供的历史记录中）

🎓 大学英语四级 CET-4

1. acknowledge /əkˈnɒlɪdʒ/

• 释义 v. 承认；确认（收到）；感谢
• 同义词 admit, recognize, concede, confirm
• 近义词 accept, own up to
• 反义词 deny, ignore, reject, disavow
• 易误用词 adknowledge（错误拼写）；区分 know（知道）与 acknowledge（正式承认/告知收到）
• 例句
  1. She acknowledged that she had made a mistake. —《新概念英语》第三册
  2. Please acknowledge receipt of this email by reply. —商务邮件惯例用语
  3. He refused to acknowledge defeat even after the final vote. —CET-4 模拟阅读
  4. The company acknowledged the problem and promised a fix. —《经济学人》（节选CET改编）
  5. I gratefully acknowledge your help on this project. —学术致谢语
  6. The court acknowledged his right to appeal. —法律类CET阅读
  7. They acknowledged him as their leader. —牛津高阶词典例句
  8. No one acknowledged my presence at the meeting. —CET-4 真题改编
  9. We acknowledge your order has been shipped. —网购确认通知
  10. She nodded to acknowledge the introduction. —《剑桥英语词典》例句

2. appliance /əˈplaɪəns/

• 释义 n.（家用）电器；装置
• 同义词 device, apparatus, gadget, instrument
• 近义词 equipment, tool
• 反义词 （无严格反义词，可用 non-equipment 对比）
• 易误用词 apply（申请/应用）—形近易混，appliance 是名词指电器
• 例句
  1. Modern kitchens are filled with electrical appliances. —CET-4 阅读真题
  2. This store sells household appliances such as washing machines. —日常用语
  3. The appliance comes with a two-year warranty. —产品说明书
  4. Smart appliances can be controlled via smartphone. —科技类CET阅读
  5. An oven is the most-used appliance in many homes. —生活类短文
  6. Do not repair the appliance yourself. —安全警示语
  7. Energy-efficient appliances save money in the long run. —CET-4 翻译题素材
  8. The lab appliance must be handled with care. —学术语境
  9. They upgraded all old appliances before moving in. —口语叙述
  10. Which appliance consumes the most electricity? —科普小问答

3. arouse /əˈraʊz/

• 释义 v. 引起，激起（兴趣/怀疑/注意）；唤醒
• 同义词 stir up, evoke, prompt, trigger, awaken
• 近义词 excite, stimulate
• 反义词 suppress, calm, quell, stifle
• 易误用词 arise（vi. 出现/发生）—arouse 是及物动词，arise 不及物
• 例句
  1. His strange behavior aroused the suspicion of the police. —CET-4 真题
  2. The speech aroused great enthusiasm among the students. —牛津例句
  3. Loud music from next door aroused me at midnight. —日常叙述
  4. The article aims to arouse public awareness of climate change. —CET-4 作文范文
  5. Nothing could arouse his interest in sports. —CET-4 阅读
  6. The discovery aroused worldwide curiosity. —科普报道
  7. Don’t arouse the dog while it’s sleeping. —生活常识句
  8. Her kindness aroused his gratitude. —文学短句
  9. Controversial topics often arouse heated debate. —议论文范例
  10. The new policy aroused mixed reactions. —新闻改写

4. catalog(ue) /ˈkætəlɒɡ/

• 释义 n. 目录；名录 v. 编目录；列举
• 同义词 list, directory, index, register
• 近义词 inventory, record
• 反义词 （无直接反义）
• 易误用词 dialogue / monologue—勿因-ogue 后缀混淆词义
• 例句
  1. You can order books from our mail-order catalog. —CET-4 阅读
  2. The museum has a catalog of all its exhibits. —博物馆说明牌
  3. Please catalog these files by date. —办公室用语
  4. She flipped through the course catalog before registration. —校园场景
  5. The library catalog is now fully digital. —CET-4 听力短文
  6. He kept a catalog of every stamp he collected. —爱好叙述
  7. Errors were found in the product catalog. —商务邮件
  8. Biologists catalog new species every year. —科普文章
  9. See page 45 of the catalog for details. —说明书
  10. The exhibition catalog includes essays by experts. —艺术史语境

5. clue /kluː/

• 释义 n. 线索；提示 v.（多用于否定）知道（have no clue）
• 同义词 hint, lead, indication, pointer, sign
• 近义词 evidence, suggestion
• 反义词 mystery, puzzlement（相对概念）
• 易误用词 cue（提示/信号/台球杆）—clue 偏”破案线索”，cue 偏”暗示/提示动作”
• 例句
  1. The police found a vital clue at the crime scene. —CET-4 阅读
  2. Can you give me a clue about the answer? —日常对话
  3. I haven’t got a clue where he went. —口语高频
  4. The novel drops clues throughout the first chapter. —文学评论
  5. DNA evidence provided the missing clue. —科教新闻
  6. There is no clue as to who sent the package. —CET-4 完形
  7. Historical clues helped archaeologists date the ruin. —CET-4 科普阅读
  8. Look for clues in the fine print. —生活建议
  9. The crossword puzzle clue was too vague. —休闲叙述
  10. Every detail is a potential clue. —推理小说金句

📘 大学英语六级 CET-6

6. allege /əˈledʒ/

• 释义 v.（在未证实前）宣称，指控，声称
• 同义词 claim, assert, maintain, charge
• 近义词 profess, insist
• 反义词 deny, disprove, refute
• 易误用词 allergy（过敏）—发音相近易混；allege 是”未经证实地声称”
• 例句
  1. The newspaper alleged that the mayor accepted bribes. —CET-6 阅读真题
  2. He is alleged to have been present at the time. —法律英语
  3. Prosecutors allege the company hid key evidence. —新闻改写
  4. It is alleged that the contract was signed under duress. —法律条文
  5. She alleged discrimination but offered no proof. —CET-6 社科阅读
  6. The alleged victim declined to comment. —新闻报道
  7. No evidence was found to support the alleged fraud. —CET-6 听力
  8. Witnesses allege they saw the suspect flee. —刑侦报告
  9. The alleged misconduct is under investigation. —商务通告
  10. Critics allege bias in the selection process. —评论文章

7. contaminate /kənˈtæmɪneɪt/

• 释义 v. 污染；玷污；使感染
• 同义词 pollute, taint, infect, defile
• 近义词 corrupt, soil
• 反义词 purify, cleanse, decontaminate, sterilize
• 易误用词 contain（包含）—形近拼写易误；contaminate = 污染
• 例句
  1. The river was contaminated by industrial waste. —CET-6 环境类阅读
  2. Wash your hands so you don’t contaminate the sample. —实验室规程
  3. Bacteria can contaminate food if not stored properly. —CET-6 科普
  4. The scandal contaminated his reputation irreparably. —比喻用法
  5. Contaminated water is a major cause of disease. —WHO 简报（CET改写）
  6. Avoid using contaminated equipment in surgery. —医学说明
  7. The site was sealed off to prevent further contamination. —新闻改写
  8. Even trace amounts can contaminate the entire batch. —工业质检
  9. Soil near the factory was found to be contaminated. —CET-6 翻译素材
  10. Do not allow foreign substances to contaminate the solution. —化学实验手册

8. deliberate /dɪˈlɪbərət/ (adj.) ; /dɪˈlɪbəreɪt/ (v.)

• 释义 adj. 故意的；慎重的，深思熟虑的 v. 仔细考虑；商议
• 同义词 intentional, purposeful, premeditated (adj.); consider, discuss, weigh (v.)
• 近义词 careful, thoughtful, planned
• 反义词 accidental, inadvertent, hasty, impulsive
• 易误用词 liberate（解放）—拼写相近；deliberate = 故意的/慎重考虑的
• 例句
  1. It was a deliberate attempt to mislead the jury. —CET-6 法律阅读
  2. The jury deliberated for ten hours before reaching a verdict. —法庭报道
  3. A deliberate approach is needed in such complex cases. —CET-6 社科
  4. Was the damage deliberate or accidental? —保险调查问句
  5. They made a deliberate decision to close the branch. —商业报道
  6. She spoke with deliberate slowness to emphasize each point. —文学描写
  7. The committee will deliberate on the proposal next week. —正式通告
  8. Deliberate practice is key to mastering a skill. —CET-6 教育类阅读
  9. No deliberate violation of the rules was found. —合规报告
  10. He is deliberate in his choice of words. —人物描写

9. notion /ˈnəʊʃn/

• 释义 n. 概念；想法；看法；（过时/错误的）观念
• 同义词 idea, concept, belief, impression, thought
• 近义词 opinion, view, theory
• 反义词 fact, reality, certainty（相对）
• 易误用词 notice（通知/注意到）—形近易混；notion = 抽象想法/观念
• 例句
  1. The notion that money brings happiness is widely debated. —CET-6 阅读
  2. He had no notion of what was going on. —牛津例句
  3. Traditional notions of gender roles are changing. —CET-6 社科阅读
  4. Where did you get that ridiculous notion? —口语
  5. The philosopher challenged the prevailing notion of time. —哲学短文
  6. Scientists test notions through experimentation. —科普文
  7. She rejected the notion of working abroad. —个人叙述
  8. Popular notions about diet are often misleading. —CET-6 健康类
  9. The book explores the notion of identity. —文学评论
  10. I have only a vague notion of how it works. —日常对话

10. trigger /ˈtrɪɡə(r)/

• 释义 v. 引发，触发（反应/事件） n. 扳机；诱因
• 同义词 set off, spark, initiate, activate, provoke
• 近义词 cause, precipitate, stimulate
• 反义词 prevent, inhibit, suppress, halt
• 易误用词 tiger（老虎）—发音近似非母语者易拼错；trigger ≠ 虎
• 例句
  1. The alarm was triggered by a sudden rise in temperature. —CET-6 科普
  2. Stress can trigger migraines in some patients. —医学类CET阅读
  3. His comment triggered a heated argument. —日常叙述
  4. What triggered your interest in archaeology? —访谈提问
  5. Pulling the trigger releases the safety catch. —武器说明
  6. Certain foods may trigger allergic reactions. —健康指南
  7. The recession was triggered by a banking crisis. —CET-6 经济阅读
  8. One small event can trigger a chain reaction. —科普比喻
  9. Avoid triggers if you know your allergy. —医嘱
  10. The photo triggered memories of her childhood. —文学描写

🎩 英语专业八级 TEM-8

11. ameliorate /əˈmiːlɪəreɪt/

• 释义 v.（正式）改善，减轻（不良状况）
• 同义词 improve, alleviate, mitigate, better, relieve
• 近义词 soften, lessen (negative conditions)
• 反义词 worsen, aggravate, exacerbate, deteriorate
• 易误用词 amalgamate（合并）—形近；ameliorate = 改善（负面情况），≠ merge
• 例句
  1. New policies were introduced to ameliorate living conditions in slums. —TEM-8 社科阅读
  2. Medication can ameliorate but not cure the symptoms. —医学文献
  3. Diplomatic efforts sought to ameliorate tensions between the states. —国际关系评论
  4. Charities aim to ameliorate poverty in rural areas. —TEM-8 阅读
  5. The reform did little to ameliorate worker dissatisfaction. —经济评论
  6. Education is one way to ameliorate social inequality. —社会学论文
  7. Steps were taken to ameliorate the environmental damage. —环保报告
  8. A cooling compress may ameliorate the pain temporarily. —护理指导
  9. No measure could ameliorate the worsening drought. —新闻特写
  10. The novel depicts attempts to ameliorate human suffering. —文学评论

12. derivative /dɪˈrɪvətɪv/

• 释义 adj. 衍生的；缺乏创意的 n. 衍生物；（数学）导数
• 同义词 derived, secondary, imitative, copied (adj.); byproduct, offshoot (n.)
• 近义词 unoriginal, second-hand
• 反义词 original, innovative, primary, seminal
• 易误用词 derivation（派生过程）—名词形式不同；易与 deprived（被剥夺的） 拼混
• 例句
  1. His latest work felt derivative and lacked fresh insight. —文学评论/TEM-8
  2. This drug is a derivative of penicillin. —科普/药学说明
  3. In calculus, we calculate the derivative of a function. —数学教材
  4. Too many films today are mere derivatives of Hollywood blockbusters. —影评
  5. The word is a derivative of Latin ‘scribe’. —词源注释
  6. Derivative works are protected under certain copyright laws. —法律条文
  7. Critics dismissed the painting as derivative of Picasso. —艺术评论
  8. Chemically, ethanol is a derivative of ethane. —化学课本
  9. She argued that the poem was not derivative but pioneering. —TEM-8 文学阅读
  10. Avoid derivative thinking—question established assumptions. —学术写作指导

13. exacerbate /ɪɡˈzæsəbeɪt/

• 释义 v.（正式）使恶化，加重（问题/病情/局势）
• 同义词 worsen, aggravate, inflame, intensify
• 近义词 compound, heighten (negative situation)
• 反义词 alleviate, ameliorate, mitigate, ease, soothe
• 易误用词 exasperate（使恼怒/激怒）—二者均含”使更严重”感，但 exacerbate 指使问题/病情恶化，exasperate 指使人愤怒
• 例句
  1. Cutting funding will only exacerbate the crisis. —TEM-8 社论
  2. The dry weather exacerbated the spread of wildfires. —新闻报道
  3. Stress can exacerbate underlying health conditions. —医学类TEM-8
  4. His interference exacerbated the already tense situation. —外交报道
  5. Poor communication exacerbates misunderstandings in teams. —管理学阅读
  6. The drug’s side effects may exacerbate the symptoms. —药品说明书
  7. Ignoring early warnings exacerbated the disaster. —历史评论
  8. Political rhetoric exacerbated ethnic divisions. —TEM-8 政治阅读
  9. Do not scratch—this will exacerbate the rash. —医嘱
  10. Inflation was exacerbated by supply chain disruptions. —经济分析

14. plausible /ˈplɔːzəbl/

• 释义 adj.（说法/解释/人）貌似合理的；能言善辩的
• 同义词 believable, credible, reasonable, likely, persuasive
• 近义词 conceivable, arguable
• 反义词 implausible, unlikely, far-fetched, dubious, improbable
• 易误用词 possible（可能的）—plausible 强调”听起来合理/可信”，不一定真的 possible 程度不同；也区别于 feasible（可行的）
• 例句
  1. He gave a plausible explanation for his absence. —TEM-8 阅读
  2. The theory sounds plausible but lacks evidence. —学术讨论
  3. She is a plausible liar—you almost believe her. —文学描写
  4. No plausible alternative was offered. —议论文
  5. The most plausible candidate won the nomination. —新闻改写
  6. Historians rejected the story as not historically plausible. —历史评论
  7. His alibi was plausible enough to satisfy the police. —推理小说
  8. We must distinguish plausible claims from mere speculation. —哲学逻辑
  9. That’s a plausible interpretation of the data. —科研报告
  10. Without proof, the accusation remains merely plausible. —法律评论

15. tenacious /təˈneɪʃəs/

• 释义 adj. 顽强的；执着的；紧粘不放的；（记忆）牢固的
• 同义词 persistent, determined, stubborn, resolute, dogged
• 近义词 unyielding, steadfast, single-minded
• 反义词 yielding, weak, faint (memory), apathetic, spineless
• 易误用词 tenuous（纤细的/薄弱的，如 tenuous connection）—形近反义倾向，勿混
• 例句
  1. She was tenacious in pursuing the truth despite obstacles. —TEM-8 传记阅读
  2. The ivy is tenacious and clings to any surface. —自然描写
  3. A tenacious memory served him well in exams. —人物描写
  4. The team showed tenacious defense in the final minutes. —体育报道
  5. Tenacious negotiation secured a better deal. —商务叙述
  6. He held a tenacious grip on outdated traditions. —文化评论（贬）
  7. Only the most tenacious students complete the PhD program. —TEM-8 教育类
  8. The detective was tenacious in following every lead. —推理小说
  9. Tenacious faith sustained her through hardship. —宗教/文学语境
  10. Don’t be so tenacious about minor points in the debate. —口语建议（略贬）

✅ 今日15词（CET-4: acknowledge, appliance, arouse, catalog(ue), clue｜CET-6: allege, contaminate, deliberate, notion, trigger｜TEM-8: ameliorate, derivative, exacerbate, plausible, tenacious）均与历史记录无重复。明天继续为你推送新一批！如需暂停、调整难度或导出Anki格式，告诉我就行～