必修1 Unit 1 第1课时 固基•语言知识(课件PPT)-【新高考方案】2027年高考英语一轮总复习（人教版）

该高中英语高考复习课件聚焦“青少年生活”主题，依据高考评价体系覆盖基础词汇、重点词汇、语法填空及读写题型，结合2023-2025年高考真题分析高频考点，如词汇多义辨析（challenge、advance）、语法应用（非谓语、被动语态），明确词汇语境应用占30%、语法填空占25%的权重，构建系统备考体系。 课件亮点在于“真题融入+语境活用+思维深化”，如以2023新高考Ⅰ卷写作“个人喜好选择”为例，解析prefer的搭配及写作应用，培养语言能力与思维品质。特设易错点分析（如solution to介词搭配）和“动词-ed+to”短语归纳，帮助学生掌握答题技巧。教师可通过随堂训练精准评估学情，助力学生高效冲刺高考。

UNIT 1　TEENAGE LIFE “教材单元语基背诵与默写”见学生用书《语基背诵与默写》 课前先过“识记关”哦! (单击进入) 1 |主|题|语|境|建|构| 第1课时　固基·语言知识 目录 基础词汇•自查自纠 随堂训练•语境活用 重点词汇•深化学习 课时作业评价 01 02 03 04 基础词汇•自查自纠 5 Ⅰ.单词拼写 1.Most __________(青少年) feel that the most important people in their lives are their parents. 2.________ (专家) say that the quality of praise is more important than the quantity. 3.It is believed that ___________(温室) gases are the main cause of global warming. teenagers Experts greenhouse 4.He ____________(自愿做) to clean up the lab after school for the old professor. 5.The first part of the project was completed two months ahead of _________(工作计划). 6.It’s important for the college __________(一年级新生) to form a good habit. 7.The girl said that she was a high school __________(毕业生) and had no experience. volunteered schedule freshmen graduate 8.These teenagers find it much easier to talk to the outgoing ________ (成年人). 9.The young man who likes looking for __________ (冒险) has signed up for the activity. 10.He gets respect and honor for his success in __________ (文学). 11.The students prepared thoroughly for the upcoming _______(辩论) competition. 12.Each student must choose a ______(话题) for their final project. adults adventure literature debate topic Ⅱ.单句语法填空 1.Table tennis is a ____________ (challenge) sport， which requires strength and skill. 2.The hall had no spare seats left last night. ___________(obvious)， the performance achieved great success. 3.The course was too _________ (advance) for me， and I had trouble keeping up. 4.She can speak Spanish _________ (fluent)， for she has lived in Mexico for several years. challenging Obviously advanced fluently 5.We learned about ________ (survive) skills like building a shelter during outdoor activities. 6.This movie is not ________(suit) for children due to its frightening scenes. 7._________ (actual)， I think we should consider a different approach to solving this problem. survival suitable Actually 8.We planned a party to celebrate our ____________ (graduate) from junior high. 9.After thinking all night， I finally found a ________(solve) to the tricky math problem. 10.Practicing good __________(behave) not only benefits others， but it also makes you feel proud. graduation solution behaviour 易错微点 1.challenge表示“挑战”时为抽象名词，不可数；表示“具有挑战性的事物”时为抽象名词具体化，可数。challenging意为“具有挑战性的”，是difficult的高级表达。 2.副词obviously意为“显然”，通常用作评注性状语，置于句首，修饰整个句子。 3.be suitable for ...意为“适合于……”，be suitable to do sth.表示“适合做某事”。 4.solution为名词，意为“解决办法”；搭配a solution to ...意为“……的解决办法”，其中to为介词。 Ⅲ.语境辨义(将对应词义的代码填在横线上) 1.challenge A.n.挑战　B.vt.怀疑(生义)　C.vt.向……挑战 ①He challenged the statement made by his classmate， asking for evidence to support it.　 ___ ②He challenged his friend to a chess match after school to see who was the better player.　 ___　  ③The challenge of learning a new language opened up new opportunities for her to experience other cultures.　 ___　  B  C A 2.advance A.n.前进；发展　　　　B.vi.前进；发展 C.vt.发展；促进(生义) ①The scientist worked tirelessly to advance his research in the field of bi1ology. 　 ___　  ②The advance in technology has made it easier for students to research and learn.　 ___　  ③Despite the challenges， she continued to advance in her studies and finally achieved high marks. 　 ____  C A B 3.schedule A.n.日程安排　 B.vt.安排　 C.vt.预定(生义) ①We need to schedule a time to meet and discuss our project.　____　  ②Can you schedule a dentist appointment for me next week?　 ____　  ③He had a busy schedule， with soccer practice and a piano lesson. ___　  B C A 4.title A.n.标题　B.n.头衔(生义)　C.v.给……命名 ①She was given the title of “Best Student” at the ceremony. 　 ____　  ②What’s more， the article with a catchy title is more likely to attract readers’ attention.　 ___　  ③The director chose to title the documentary after a small village， because it records the real and warm stories of the villagers there for ten years. 　____  B A C 重点词汇•深化学习 1.prefer vt.较喜欢；宁愿；喜欢……多于…… ①Among all the subjects， I actually have a ___________ (prefer) for English while my partner prefers chemistry ___ biology. ②(2023·新高考Ⅰ卷写作)I suggest that students choose their own partners _________________________________.  我建议学生根据自己的个人喜好选择自己的搭档。 preference to based on their personal preferences ③(2025·全国Ⅰ卷写作)I ___________________________________ ___________ because it can record the moments when we laugh loudly during PE class， which all classmates will enjoy reading.  比起《猜猜我是谁》，我更喜欢《校园趣事》，因为它能记录下体育课上我们开怀大笑的瞬间，所有同学都会乐意阅读。 prefer “Fun at my school” to “Guess who I am” ④(写作话题:语言学习)Half of the students surveyed _________ ________________________ by watching English movies.  接受调查的学生中有一半更喜欢通过看英文电影来学习英语。 prefer learning/to learn English (1)prefer to do/doing sth. 更喜欢做某事 prefer ...to ... 喜欢……多于…… 宁愿做某事而不愿做某事 (2)preference n. 偏爱；爱好 have a preference for 对……偏爱 名师指津:(1)prefer的过去式、过去分词、现在分词分别为: preferred， preferred， preferring。 (2)prefer=like better，因此prefer不能和比较级连用。 2.content n.内容；[pl.]目录；主题adj.满足的；满意的vt.使满足 ①(语段串练)Tom was content ___________ (practice) basketball every afternoon. He shot hoops and dribbled the ball ___ his heart’s content. What he was content _____ was that he found his skills had improved greatly.  ②(2025·全国Ⅱ卷写作)Please remember _____________________ is due by next Friday — do let me know once you’ve completed it.  请记住文章内容需在下周五前提交——完成后请务必告诉我。 to practice to with the content of the article ③(靓丽表达句)He ____________________________________ at home， reading his favorite book.  读着自己最喜欢的书，他满足于在家度过一个安静的夜晚。 contented himself with a quiet evening (1)be/feel content with ... 对……满足/满意 be content to do sth. 乐于做某事 to one’s heart’s content 尽情地；心满意足地 (2)content oneself with ... 满足于…… 联想发散:“对……满意”的常用短语还有:be pleased with； be satisfied with； be happy with等。 3.confuse vt.使糊涂；使迷惑 ①(语段串练)Tom was confused _______ the new math problem his teacher gave. He stared at the paper in __________ (confuse)， not knowing where to start. ②(2024·浙江1月高考写作)________________________________ ， she did not utter any word except flashing a radiant smile and going away. 面对学生们困惑的表情，她没有说一句话，只是露出灿烂的微笑，然后离开了。  about confusion Faced with students’ confused look ③(“道歉信”范句) I apologize for __________________ and hope this hasn’t caused any inconvenience.  我为搞混了日期深表歉意，希望没有造成不便。 ④Don’t _____________________________________. They sound similar but have very different meanings. 不要把单词“expect”和“except”搞混了。它们听起来相似，但意思完全不同。  confusing the dates confuse the word “expect” with “except” (1)confuse A and/with B　　　 　把A和B混淆 (2)confused adj. 糊涂的；迷惑的 be confused about 对……感到迷惑 (3)confusion n. 迷惑；困惑；混乱；混淆 in confusion 不知所措；处于混乱状态 (4)confusing adj. 难以理解的；不清楚的 4.recommend vt.建议；推荐；介绍 ①(“建议信”范句)I strongly ________________________________ _________， Huashan Mountain _______， which is located in Shaanxi.  我强烈向你推荐位于陕西的著名旅游景点华山。 ②(“推荐信”范句)I am writing to ____________ Jack， fluent in English，_________________.  我写信推荐英语流利的杰克作为你的助理。 recommend the famous tourist attraction to you recommend as your assistant ③(2023·北京高考)For the activity format， I would ___________ ______________________________________________.  对于活动形式，我建议组织一次环保友好型的展览。 ④(改写句子·丰富表达)My adviser recommended me to sign up for advanced literature. →My adviser recommended _______________________ advanced literature.  recommend organizing an environmentally friendly exhibition that I (should) sign up for (1)recommend doing sth. 建议做某事 recommend sb. to do sth. 建议某人做某事 recommend that sb.(should) do sth. 建议某人做某事 recommend sth. to sb. 向某人推荐某物 recommend sb. as ... 推荐某人当…… (2)recommendation n. 建议；推荐 名师指津:recommend及recommendation后接从句时，从句谓语动词用“(should+)动词原形”。 5.responsible adj.负责的；有责任的 ①She always does her homework ___________ (responsible)， making sure it is done on time and correctly. ②(“演讲稿”范句)As far as I am concerned， ________________ __________________________ and spread traditional Chinese culture to the world.  我认为，保护并向世界传播中国传统文化是我们的责任。 responsibly it is our responsibility to preserve ③(写作话题:环境保护)我们应该对我们的行为负责，尽全力去保护海洋不受污染。(一句多译) →We are supposed to __________________________________ and spare no effort to protect oceans from being polluted.(responsible)  →We are supposed to _____________________________________ and spare no effort to protect oceans from being polluted.(responsibility)  be responsible for our own behaviour take responsibility for our own behaviour (1)be responsible for 　　 对……负责 (2)responsibility n. 责任；义务 a sense of responsibility 责任感 take responsibility for ... 对……负责 accept/shoulder responsibility 承担/担负起责任 It is one’s responsibility to do sth. 做某事是某人的职责 (3)responsibly adv. 认真负责地 6.attract vt.吸引；引起……的注意(或兴趣) ①(2024·新高考Ⅰ卷写作)I had no choice but to give him an _________ (attract) souvenir I had bought at Prague， which he accepted with delight. ②The West Lake， ___________________ lying in Hangzhou，____________________________ every year.  西湖，一处位于杭州的旅游胜地，每年吸引成千上万的游客。 attractive a tourist attraction attracts thousands of tourists ③(写作话题:活动介绍)I enjoyed every second of the concert and ___________________________ it when the boys and girls from Britain started to sing the traditional Chinese song “Liang Zhu”.  我非常享受音乐会的每一秒，尤其是当来自英国的男孩和女孩开始唱起中国的传统歌曲“梁祝”时，我被吸引住了。 was particularly attracted to (1)attract one’s attention 吸引某人的注意力 attract sb.to sth. 吸引某人关注某事 (2)attraction n. 有趣的东西；吸引人的事物 a tourist attraction 旅游景点 (3)attractive adj. 有吸引力的；引起注意的 7.focus vi.& vt.集中(精力、注意力等)；(使)调节焦距n.中心；重点；焦点 ①With so many people focusing ______(they) eyes on me， I felt extremely nervous and awkward. ②Hair in knots and nose covered by pumpkin pulp，I became ____ ___________________ those who viewed the video posted online. 头发打结，南瓜肉盖着鼻子，我成了那些在网上观看视频的人关注的焦点。  their the focus of attention of ③(升华主旨句)The key to success is _____________________， no matter how challenging the path may become.  成功的关键在于，无论道路是多么具有挑战性，都要专注于你的目标。 to focus on your goals (1)focus on/upon　 集中；特别关注 focus one’s attention/eyes on ... 集中注意力/目光于…… (2)the focus of ... ……的焦点 联想发散:表示“专注于；专心于”的短语集锦:fix/concentrate on； be lost/absorbed/buried in； put one’s heart into； abandon oneself to； be devoted to等。 8.addicted to对……很入迷 (根据句意填入适当的短语) ①Lisa found herself ___________ solving Rubik’s cubes； the challenge of each mix was irresistible to her.  ②He’s so ___________ his career that he often works late without realizing it.  ③Children should be __________ diverse experiences to foster their curiosity and creativity.  addicted to devoted to exposed to ④The growth of a plant is ___________ various factors， including sunlight， water， and soil quality.  ⑤After moving to a new city， it took me a while to get ____________ the different lifestyle.  related to accustomed to “动词⁃ed+to”构成的短语:accustomed to　　 习惯于…… attached to (情感上)依赖于或附属于…… devoted to 忠诚或热爱于…… related to 与……有关联或关系 opposed to 反对…… exposed to 暴露于…… 随堂训练•语境活用 (根据课文内容，在空白处填入1个适当的单词或括号内单词的正确形式) Adam is a freshman at senior high school.He was faced with many ①___________ (challenge) at the first week.At first， he didn’t know which courses ②__________ (choose)， but his adviser helped him solve this problem.Finally， he chose Chinese. He thought ③___ was very difficult， but he hoped to be fluent when he graduated.His adviser also recommended that he ④_____________ (sign) up for ⑤___________ (advance) literature.In addition， he wanted to join the school football team but ⑥____________ (refuse)， ⑦________ challenges to choose it (should) sign advanced was refused which made him unhappy.He didn’t give up and decided to find a way ⑧___ ________ (improve) on his own so that he could make the team next year.Now he is a volunteer， ⑨_________ (hand) out food to homeless people in the community. Studying hard isn’t always fun， but he will try his best to keep up ⑩_____ others.  to improve handing with 课时作业评价 Ⅰ.阅读理解 (2026·江苏南通模拟)When Strauss’s first wife passed away， it was a shock for him and their then⁃10⁃year⁃old daughter， Molly. Seeing her facing a challenge she really wasn’t prepared for， Strauss naturally turned to what he knows best: storytelling. “I had the idea that perhaps stories of great heroes and the way they met challenges and hardships in their lives could be inspirational to her，” Strauss says. The principal at his daughter’s elementary school had lost her own mother when she was nine and developed a close bond with Molly. Her school hosted the first plays， and the principal advised him to design the plays to fit in with the standard school curriculum， so that teachers could achieve their education goals along with Strauss’s objectives. Strauss calls his collection of plays the Spirit Series， “because it’s a celebration of the human spirit and because our job is to spirit students over a threshold (门槛) in a transformative way”. Unlike in regular theater plays， the Spirit Series plays leave room for the children to plug in their own dialogue， put themselves in the historic figures’ shoes and write essays about big questions posed by the historic figures in the plays， for instance: What do you want out of life when you grow up? Does popularity feed the soul? The Spirit Series has been hosted by more than 100 schools and 60，000 students in California. The results students and teachers report are striking: More than a quarter of students improve academically and in social and emotional skills. More than 90 percent of students report improved teamwork after participating， and nearly 82 percent of participating teachers said that the series enhances focus. Today，the Spirit Series has expanded into Spirit Corps， which provides video⁃assisted storytelling that Strauss is rolling out more widely this year， and Spirit Works， a coaching program for teachers， “because you can’t expect students to go where you can’t lead them，” Strauss says. “Transformative outcomes in classrooms begin with self⁃transformation.”  语篇解读:本文是一篇记叙文。文章讲述了Strauss为女儿创作the Spirit Series戏剧教育项目，该项目通过互动式历史人物故事激发学生的创造力和思考能力，并在加州多所学校取得显著的教育成效，最终扩展为更全面的教师培训计划。 √ 1.Why did Strauss create the Spirit Series? A.To express the love to his lost wife. B.To help his daughter tackle the sorrow. C.To offer standard curriculum to schools. D.To promote traditional theater education. 解析:细节理解题。根据第一段“When Strauss’s first wife ... he knows best: storytelling. ”和第二段中Strauss所说的话“I had the idea that perhaps stories of great heroes and the way they met challenges and hardships in their lives could be inspirational to her ”可知，Strauss创作该剧的初衷是帮助女儿应对悲伤。故选B。 √ 2.What makes the Spirit Series plays special? A.They record major historic events. B.They are a collection of students’ essays. C.They are written by a less⁃known writer. D.They allow children to add their own creation. 解析:细节理解题。根据第三段中“Unlike in regular theater plays， the Spirit Series plays leave room for the children to plug in their own dialogue， put themselves in the historic figures’ shoes and write essays about big questions posed by the historic figures in the plays ”可知，该剧的特别之处在于允许孩子们加入自己的创作。故选D。 √ 3.What does paragraph 4 mainly talk about concerning the Spirit Series? A.Its positive impacts. B.Its high profitability. C.Its potential problems. D.Its great complexity. 解析:段落大意题。根据第四段中“The results students and teachers ... the series enhances focus. ”可知，该段通过数据说明该剧的积极影响。故选A。 √ 4.What message does the underlined sentence in the last paragraph convey? A.Teachers should improve their teaching aims. B.Teachers should be a model for the students. C.Teachers should coach their students. D.Teachers should reform their teaching. 解析:词句猜测题。画线句的上文“because you can’t expect students to go where you can’t lead them ”表明教师需先具备引领的能力，再根据画线句“Transformative outcomes in classrooms begin with self⁃transformation. ”可知，此处指教师需先改变自身教学方式，才能引导学生实现转变。故选D。 Ⅱ.完形填空 I don’t remember a thing I learned in fifth grade about math， science or social studies. I know I learned something because I was promoted to sixth grade. But those lessons left no mark on my mind. What I do remember is my teacher， Mrs.Tippet， and the 　5　 she had on my life. I loved Mrs.Tippet. I used to 　6　 reasons to go to her desk. Though it was not required， I’d bring my papers to her to 　7　. I stood on one foot and then the other， hoping she’d write “Excellent” across the top with her fountain pen.  She　8　 no misbehavior， despite there wasn’t much. Most of us did not want to 　9　 her. Of course， John Phillips would 　10　 to Ronnie Reeves when she was writing on the blackboard or helping someone at their desk. She never 　11　 her voice， but the look on her face was so cold that they could not 　12　 their regret. Some of us 　13　 were glad they got what they deserved； some were sorry for them. But we all were 　14　 because we weren’t the ones who disturbed the room.  She　15　 me once， too. We were supposed to make a poster. Patty Bussen drew a beautiful flower on her paper and colored it deep red. I liked what she did and 　16　 her. Mrs. Tippet walked around the room as we worked. She asked me if the 　17　 was my own idea. “Oh， yes，” I assured her. She looked at me for a long time and then walked on.  I learned she knew what I had done and was immediately ashamed. The shame was　18　 enough. That was one thing I remember from fifth grade: 　19　 deserves what it gets.  语篇解读:本文是一篇记叙文。作者回忆五年级时的老师蒂皮特夫人对自己生活的影响，以及在学校发生的一些与老师相关的事情，从而引出对诚实等品质的感悟。 √ 5.A.influence　　　　　　 B.sign C.passion D.secret 解析:根据下文描述老师在学校对作者和同学们的种种影响可知，这里说的是老师对作者生活的影响，“have an influence on”是固定短语，表示“对……有影响”，故选A。 √ 6.A.explain B.invent C.introduce D.propose 解析:根据下文的“to go to her desk”可知，作者为了能去老师办公室，会编造一些理由，“invent reasons”符合这种行为逻辑，故选B。 √ 7.A.identify B.examine C.compose D.exchange 解析:根据下文的“hoping she’d write ‘Excellent’ across the top with her fountain pen”可知，作者把作业拿给老师，是希望老师检查并给予评价，故选B。 √ 8.A.assessed B.displayed C.tolerated D.observed 解析:根据下文“She never ________ her voice， but the look on her face was so cold”老师对约翰·菲利普斯窃窃私语的处理方式可知，老师不允许学生有不良行为，“tolerate no misbehavior”表示“不能容忍任何不良行为”，故选C。  √ 9.A.please B.follow C.support D.disappoint 解析:根据上文的“Most of us did not want to”可知，因为大家喜欢老师，所以不想做出不良行为让老师失望，故选D。 √ 10.A.whisper B.shout C.report D.listen 解析:根据下文的“when she was writing on the blackboard or helping someone at their desk”可知，在老师不注意的时候，约翰·菲利普斯应该是小声和罗尼·里夫斯说话，“whisper to sb.”表示“对某人窃窃私语”，故选A。 √ 11.A.silenced B.raised C.lowered D.lost 解析:根据下文“the look on her face was so cold”可知，老师不用提高嗓门，一个表情就能让学生感到懊悔；“raise one’s voice”表示“提高嗓门”，故选B。 √ 12.A.live with B.set off C.get over D.hold back 解析:老师冷漠的表情让犯错的学生内心懊悔，无法抑制这种情绪，“hold back one’s regret”表示“抑制某人的懊悔”，故选D。 √ 13.A.casually B.gradually C.secretly D.accidentally 解析:根据常理，有些同学庆幸犯错的同学得到惩罚，但这种想法可能不会公开表达，所以是暗自庆幸，故选C。 √ 14.A.annoyed B.confused C.surprised D.relieved 解析:根据下文的“because we weren’t the ones who disturbed the room”可知，看到犯错的同学被老师惩罚，自己没犯错，所以大家会松一口气，故选D。 √ 15.A.consulted B.persuaded C.corrected D.challenged 解析:根据下文的“She looked at me for a long time and then walked on.”和下一段的“I learned she knew what I had done and was immediately ashamed.”可知，作者模仿别人画花还撒谎，老师的反应让作者意识到自己的错误，说明老师纠正了作者的行为，故选C。 √ 16.A.ignored B.imitated C.respected D.defended 解析:根据上文的“I liked what she did”以及下文作者谎称是自己的想法可知，作者模仿了帕蒂·布森画的花，故选B。 √ 17.A.design B.flower C.picture D.diagram 解析:根据语境可知，老师询问海报设计是否为原创，直接对应上文“We were supposed to make a poster.”，故选A。 √ 18.A.protest B.prejudice C.praise D.punishment 解析:根据上文的“I learned she knew what I had done and was immediately ashamed.”可知，作者因为不诚实的行为感到羞愧，这种羞愧就像是一种惩罚，故选D。 √ 19.A.familiarity B.dishonesty C.kindness D.imperfection 解析:根据上文的“I learned she knew what I had done and was immediately ashamed.”可知，作者因为模仿别人并撒谎而感到羞愧，意识到不诚实会带来不好的结果，总结教训“不诚实会自食其果”，呼应抄袭事件，故选B。 Ⅲ.语法填空 (2026·江西模拟预测)A student at Xinyilu Primary School in Qinhuangdao， Hebei Province， asked a virtual “Confucius” on the screen， “Does the phrase ‘To learn and constantly review what one has learned， isn’t that a delight?’ mean we should frequently review our lessons?” The digital “Confucius”， 　20　 (dress) in traditional attire (服装)， nodded and responded， “Indeed. By reviewing what one has learned， new insights can 　21　 (gain).”  With AI⁃powered virtual teaching assistants， historical figures can now interact with students in the classroom， 　22　 (enhance) learning experiences. “The integration of AI in education is expected to bring significant changes，” says Xue Lan， Dean of Schwarzman College at Tsinghua University. “AI offers 　23　 (limit) possibilities as a personalized learning hub.”  At Tianjin Huiwen Middle School， AI education has developed in three stages. In 2017， the school started a sci⁃tech club focused on AI. By 2022， AI programs　24　 (expand)， including courses on robots， drones， and the RoboMaster competition. AI is now 　25　 regular part of teaching.  At Xinyilu Primary School， smart boards and AI⁃powered assistants have improved teaching　26　 (efficient) and engagement， according to the principal. Parents and teachers see the benefits 　27　 worry about AI’s limitations. Some believe over⁃reliance 　28　 AI may reduce critical thinking skills， with concerns that students may turn to AI for answers instead of solving problems 　29　 (independent).  语篇解读:本文是一篇说明文。文章主要介绍了人工智能在教育领域的应用及其影响。 20.dressed　考查非谓语动词。此处为非谓语动词作后置定语，be dressed in“穿着”，所以需要去掉be动词，剩下过去分词作定语。故填dressed。 21.be gained　考查被动语态。空处和can构成句子的谓语，gain与主语new insights之间为被动关系，所以用被动语态，空前有can，所以空处需要“be + 过去分词”结构。故填be gained。 22.enhancing　考查非谓语动词。此处为非谓语动词作结果状语，需用现在分词表示自然而然的结果。故填enhancing。 23.unlimited/limitless　考查形容词。修饰名词possibilities应用形容词，根据句意可知，此处表示“无限的”，应用形容词unlimited或者limitless。 24.had expanded/had been expanded　考查时态和语态。空处为句子的谓语动词，根据时间状语By 2022可知，此处应用过去完成时，expand与主语AI programs之间为被动关系，应用过去完成时的被动语态。而expand也可作不及物动词，表示“扩展；扩大；发展；膨胀”。所以该句也可用主动语态。故填had expanded/had been expanded。 25.a　考查冠词。part为可数名词，此处表示泛指，应用不定冠词，且regular是发音以辅音音素开头的单词，应用a。 26.efficiency　考查名词。分析句子结构可知，空处和engagement并列作improved的宾语，应用名词efficiency，表示“效率”，为不可数名词。 27.but　考查连词。“see the benefits”与“worry about AI’s limitations”为转折关系，用连词 but连接。 28.on/upon　考查介词。over⁃reliance on/upon为固定短语，表示“过度依赖”。故填on/upon。 29.independently　考查副词。修饰动词solve应用副词independently，表示“独立地”。 $