Unit 3 The world at one click单词、语法、知识点讲解2025-2026学年译林版英语八年级下册

该初中英语单元复习讲义通过系统梳理单词、语法及句子知识点构建知识体系，单词精讲涵盖音标、词性及用法拓展，如"must"作名词与情态动词的辨析，语法部分用对比表格区分一般过去时与现在完成时的时间状语，句子讲解剖析核心句型结构，清晰呈现知识脉络与内在联系。 讲义亮点在于分层练习设计，词汇题如"countless possibilities"考查词形转换，语法题通过"It has been ten years since..."等情境题提升语言能力，培养思维品质。配套答案与解析支持学生自主复习，教师可据此实施精准教学，助力不同层次学生巩固基础、提升能力。

Unit 3 The world at one click单词、语法、知识点讲解 【知识梳理】 一、单词精讲 1. click /klɪk/ n.点击 2. coast /kəʊst/ n.海岸，海滨 3. must /mʌst/ n. 必须做(或看、买等)的事 A visit to this lively city is a must if you love music, sport and culture. 如果你喜爱音乐、体育和文化，这座充满活力的城市绝对值得一游。 ①lively作形容词，意为“充满活力的；热闹的；生动的” 常见搭配： 修饰场所：lively city充满活力的城市；修饰人：lively child活泼的孩子；修饰事物：lively music欢快的音乐。 ②must 作名词，意为“必须做(或看、买等)的事” Doing homework on time is a must for students. 作情态动词，意为“必须”，后跟动词原形。其否定形式为mustn’t，意为“禁止；不许”。 We must study hard. You mustn’t pollute the river. 作情态动词，意为“一定”，表肯定猜测。 You must be tired after walking a long way. 4. pop /pɒp/ adj. 流行音乐的；通俗的 popular作形容词，意为“流行的；受欢迎的”，popularity作名词，意为“流行；普及” 5. band /bænd/ n.乐队 6. be second to none 不亚于任何人(或事物) 7. live /laɪv/ adj.现场演出的 You can enjoy live music there.你可以在那里欣赏现场演出的音乐。 ①作形容词（发音/laɪv/），意为“现场演出的；直播的”，修饰名词时置于名词前。 live music现场音乐 live show现场表演 ②作形容词（发音/laɪv/），表示“活的；有生命的”，用于修饰动物或植物，不用于修饰人。 There are many live fish in the pond. ③作动词（发音/lɪv/），意为“居住；生活”。 live in+地点 居住在某地 live a...life 过...的生活 live on靠食...为生 He lives a happy life with his family. 8. whether /ˈweðə(r)/ conj.不管…；是否 A trip to Anfield Stadium will be a visit to remember, whether you are a football fan or not. 无论你是不是足球迷，去一趟安菲尔德球场都将是一次难忘的旅行。 ① 引导宾语从句，意为“是否”，常与or not连用。 I don’t know whether she will come to the party or not. ② 引导让步状语从句，意为“不管…（还是）”，常与or搭配，相当于no matter whether。 Whether it rains or snows, we will go hiking as planned. ③以下几种情况whether作为是否，都不能和if互换 1)whether 放在句首表示是否 2)whether 跟在介词后面表示是否 3)whether 后面出现了动词不定式 9. as for 至于，关于 As for the number of museums and cultural buildings, guess what? 至于博物馆和文化建筑的数量，你猜怎么着? 辨析：the number of与a number of 含义 用法 例句 the number of ……的数量 后接可数名词复数，谓语动词用单数形式 The number of students in our class is 45. a number of 许多，大量 后接可数名词复数，谓语动词用复数形式 A number of students are playing basketball. 10. slice /slaɪs/ n.部分；(切下的)片，块知识点 So make some time to visit a few of them and take in a slice of Liverpool’s culture. 所以，抽些时间参观其中几处，感受一下利物浦的文化。 take in ① 吸收，吸入（空气、液体等）； Plants take in carbon dioxide and release oxygen. ② 理解，领会（信息、知识等）； It took me a long time to take in what the teacher said. ③ 收留，收容（某人）； The kind old lady took in the homeless boy. 【拓展】take组成的常见短语 take up开始从事；占据 take on 接受，呈担 take out取出 take off脱掉；起飞 take away拿走；拿开 11. truly /ˈtruːli/ adv.真正，确实 New York is truly the biggest city in the USA.纽约确实是美国最大的城市。 它的形容词形式为true，意为“真正的，确实的”，truth作名词，意为“事实，真相” 12. bridge /brɪdʒ/ n.桥 13. doubt /daʊt/ n. 疑问，怀疑 no doubt 无疑 14. a bit of everything 什么都有点儿 From famous buildings and bridges to museums and theatres to malls and restaurants, there is no doubt this city has a bit of everything. 从著名的建筑和桥梁到博物馆和剧院，再到商场和餐厅，这座城市无疑拥有众多看点。 ①doubt还可作动词，意为“怀疑”，doubtful作形容词，意为“怀疑的” without doubt毫无疑问，的确 English is without doubt the most widely used in the world. ②a bit of everything相当于a little of everything。 15. count /kaʊnt/ vi.数数 count down 倒计时 It is fun counting down to midnight and watching a huge glass ball falling from the sky! 倒计时迎接午夜，看着巨大的水晶球从空中落下，十分有趣! ①count down倒计时，后面常跟介词to, 表示“(倒数)到某一节日或重要日子等”。 She is counting down to her birthday. count还可作名词，意为“数量”，countable作形容词，意为“可数的”，uncountable作形容词，意为“不可数的”，countless 作形容词，意为“无数的，数不清的” ②watch sb do/doing 看见某人（常）做某事/正在做某事 16. guard /ɡɑːd/ n.卫兵，看守；保卫 17. nightlife /ˈnaɪtlaɪf/ n.夜生活 18. excitement /ɪkˈsaɪtmənt/ n.激动，兴奋 The streets are always busy and full of excitement. excite作动词，意为“使兴奋”，excited作形容词，意为“兴奋的”，修饰人；exciting作形容词，意为“令人激动的”，修饰事 be excited about 对…感到兴奋 19. Italian /ɪˈtæliən/ adj.意大利(人)的，意大利语的 Italy作名词，意为“意大利” 20. digital /ˈdɪdʒɪtl/ adj. 数字式的，数码的 21. in person 亲自，亲身 22. check out 察看，看一看；(从图书馆等)借出 23. menu /ˈmenjuː/ n.菜单 24. sign /saɪn/ vi.&vt. 签(名)；和…签约 sign up (for sth) 报名(参加课程) 25. training /ˈtreɪnɪŋ/ n.训练，培训 My sister Shirley signed up for a swimming training course on its website yesterday. 我妹妹雪莉昨天在其网站上报名了一个游泳训练课程。 ①报名做某事sign up to do sth Please sign up to volunteer at the community centre. ②train作动词，意为“训练，培训；培养，锻炼” train to do sth训练做某事 train to be/as 训练成为 He is training to be a doctor. 26. list /lɪst/ n. 目录，清单 They have put a list of different shows on the website recently. 他们最近在网站上发布了一份不同演出的清单。 list还可作动词，意为“(按某次序)把…列表，列清单” make a list (of...) 列一张(…的)清单 on the list在清单上 Please list your ten favourite songs. 27. report /rɪˈpɔːt/ n.报告；汇报；报道 reporter作名词，意为“记者” 28. book /bʊk/ vt.&vi.预定，预约 29. ticket /ˈtɪkɪt/ n.票，入场券 30. cash /kæʃ/ n.现金 People usually do not need to carry cash—they prefer to pay online. prefer to do sth 更喜欢做某事 prefer to do rather than do 宁愿做而不愿做 31. ongoing /ˈɒnɡəʊɪŋ/ adj.仍在进行的，不断发展的 32. project /ˈprɒdʒekt/ n.项目 33. temple /ˈtempl/ n.庙宇，寺院 The Mogao Caves include cave temples, paintings and sculptures.莫高窟包括洞窟寺庙、壁画和雕塑。 include作动词，意为“包括，包含”，including作介词，意为“包括，包含” The whole family will tour some big cities, including Beijing and Shanghai. 34. proof /pruːf/ n.证据，证明 35. communication /kəˌmjuːnɪˈkeɪʃn/ n.交流，交际 They are not only art treasures from ancient China but also an important proof of the communication between different cultures along the ancient Silk Road. 它们不仅是中国古代的艺术瑰宝，而且是古代丝绸之路上不同文化交流的重要证据。 ①not only...but also...用于连接两个并列的成分，also有时可以省略。not only...but also...若连接两个并列成分作主语，谓语单复数形式常与but also后的主语保持一致(即“就近原则”)。 Not only the students but also the teacher likes playing soccer. ②prove作动词，意为“证明” ③communicate作动词，意为“交流；沟通” 与某人交流communicate with sb=have communication with sb 36. 3D(= three-dimensional /daɪˈmenʃənl/ adj.三维的，立体的 37. article /ˈɑːtɪkl/ n.文章 38. closely /ˈkləʊsli/ adv.靠近地；细致地 You can also watch the sea animals closely.你也可以近距离观察海洋动物。 close作形容词，意为“近的；亲密的”，作动词，意为“关闭”；closed作形容词，意为“关闭的” 39. complete /kəmˈpliːt/ vt.完成，结束 completely /kəmˈpliːtli/ adv. 完全地，完整地 To complete your online trip, go to the CN Tower. 为了完成你的线上旅行，去看看加拿大国家电视塔吧。 作形容词，意为“完全的，完整的；彻底的” 40. although /ɔːlˈðəʊ/ conj.不过，然而；尽管 41. introduction /ˌɪntrəˈdʌkʃn/ n.介绍 introduce作动词，意为“介绍” 42. French /frentʃ/ adj.法国(人)的，法语的 n.法语 43. queen /kwiːn/ n.王后；女王 It used to be the home of French kings and Queens and became a museum in 1793. used to be 曾经是 used to do 过去常常做某事 France作名词，意为“法国”, Frenchman作名词，意为“法国人” 44. tour /tʊə(r)/ vt.&vi. 旅游 I toured all four floors and saw so many fantastic works of art. 我把四层楼都游览了，看到了许多极棒的艺术作品。 tour作可数名词，意为“旅游” We are planning a tour around the world. tourist作名词，意为“游客”，tourism作名词，意为“旅游业” 45. zoom /zuːm/ vi.快速移动 zoom in 使画面放大，拉近 46. crowd /kraʊd/ n.人群，观众 Moreover, there were no crowds, and it was completely free. crowded作形容词，意为“拥挤的” 【练一练】 1. There are__________(count)‌ possibilities in the future. 2. There was great __________(兴奋)‌ at the school fair when the band started playing. 3. ________(有着) flowers everywhere, the spring in Yangzhou is well worth a visit. 4. If you study hard, you will__________(true)master the subject. 5. She is learning __________(意大利) to communicate with her friends in Italy. 6. How many eggs are there in the fridge? ____________.(没有) 7. What’s in your pencil case? ____________.(没有) countless；excitement; With; truly; Italian; None; Nothing 8. The bag on the bench are the __________(tour) and they will come back for them soon. 9. House prices have __________(zoom) up here since the new underground opened. 10. Please listen to the __________(introduce) to the popular attractions and learn more about them. 11. The artist __________(数码地) creates paintings on a tablet instead of using a brush and canvas. 12. The famous writer who is ________(签名) books for readers in the bookstore is very knowledgeable. 13. Her new novel has stayed on the best-seller __________(清单) for three months. 14. I have _________(预定) two tickets for us to watch the concert this weekend. 15. Can you move a little _________(close)? I can’t hear what you are saying. 16. The team spent months collecting __________(证据) that show the gas is harmless to the environment. 17. His last ______________(communicate) with the team was a short email sent before the storm hit the area. 18. During the Spring Festival, some people would visit _________(庙宇) to pray for wealth and health. tourists’; zoomed; introductions; digitally; signing; list; booked; closer; proofs; communication; temples 二、语法精讲——一般过去时和现在完成时的区别 1. 一般过去时单纯表示过去某个时间发生的事情或存在的状态，说话的侧重点在于陈述过去发生的事情或状态，和现在没有联系，常与表示过去的、确定的时间状语连用。 2. 现在完成时表示到说话时为止已经发生或完成（不一定结束）的动作或状态，强调造成的结果或对现在产生的影响，不能与表示过去的、确定的时间状语连用。 3. 时间状语 一般过去时：yesterday, the other day (= a few days ago), last…, … ago, the day before yesterday, just now, in +过去时间 现在完成时：already, ever, just, recently, (not) yet, so far (迄今为止), up to now, till now, since, never, before 【练一练】 1.--In China, the film industry is quite different from what it _____ years ago. ---I agree. The Wandering Earth is ______ good example. A. Has been; the B. was; the C.has been;a D.was;a 2. --Many companies in the world _______HUAWEI（华为芯片） --Great! The world will ______ more chances to the better company. A.are used to using;offer B.were used to use;offer C.used to use; provide D.are used to;provide 3. It _______ ten years since we ______ in Beijing last time. A.have been, met B.is,met C.was, meet D.has been, meet 4. --Is your father in? --No, he ________ for three hours. A.was out B.has been out C.went out D.has gone out 5. --He’s just back from work,______? --_______. He won’t come back until tomorrow. A.hasn’t he; Yes, he has B.hasn’t he; No, he hasn’t C.isn’t he; Yes, he is D.isn’t he; No, he isn’t 6. --She ______. Please be quiet! --What? It’s seven a.m. I _____ for an hour. A. has just fallen asleep; have got up B. has just slept; have got up C. has just fallen asleep; have been up D. has just been asleep; have been up 7. This is the most beautiful I have _____ visited. A.never B.not C.ever D.yet 8. The film ______ for nearly an hour. You should go to the cinema earlier. A.will stop B.has been over C.has stopped D.will be over 9. Though Mr Li ______ his hometown for over ten years, he misses his old friends from time to time. A.has left B.left C.was away from D.has been away from 10. Neither Jim nor Tom ______ Australia before, but they know the country very well. A.has gone to B.has been to C.have gone to D.have been to 11. I have finished my homework. When ______ you _____it? A.do; finish B.will;finish C.have;finished D.did;finish 12. The students’ interest in Chinese paper-cutting _______ a lot after a folk artist gave them a talk. A.has risen B.rose C.rises D.was rising 13. --He ____ to draw horses already. When ______ he learn it? --Last year. A.learned; has B.learned; did C.has learned;has D.has learned; did 14. --Have you been to Suning Plaza (苏宁易购) in our city? --No. Although it _______ for more than a week, I am far too busy to go there. A.has started B.has been on C.has been open D.has opened 15. --Where is Mike? --He _____to New York on business. He_____ the airport at five in the morning. A.has gone; has left for B.has been; has left for C.has gone; left for D.has been; left for DABBD CCBDB DADCC 三、句子讲解 1. Oh, it’s more convenient to visit a place online. convenient作形容词，意为“方便的；便利的”，反义词是inconvenient，意为“不方便的”，convenience作名词，意为“方便，便利” It is convenient for sb. to do sth. 对某人来说做某事是方便的 2. The internet enables us to learn about the outside world. enable作动词，意为“使能够” enable sb to do sth 使某人能够做某事 3. There are even online tour guides telling you all about them. There be+ sb +doing sth 有某人做某事 There be +sth to do.有事要去做 4. A trip to New York would not be complete without a walk through Central Park. complete v. 完成=finish； adj. 完整的，incomplete adj.不完整的 completely adv.完全地，彻底地 central adj. 中心的，中央的 center n.中心 city center 市中心 5. It feels like we came here just yesterday. feel like的用法： ①感觉像 I feel like a fish in the sea. ②想要 想要做某事feel like doing sth =want to do sth=would like to do sth 6. Maybe I can visit your country this summer holiday. maybe作副词，表示“也许，可能”，用于推测或不确定的情况，在句中作状语，修饰整个句子或谓语动词，通常位于句首。 辨析maybe与may be maybe 大概，或许，可能 副词，作状语，常位于句首 may be 可能是 情态动词may+动词原形be 在句中作谓语 20 1 学科网（北京）股份有限公司 $