Unit 3 The Internet 核心词汇、短语及句式 讲义-2026-2027学年高中英语人教版必修第二册

本高中英语讲义聚焦人教版高一英语必修二Unit 3 The Internet，系统梳理Section A至D的核心知识点，涵盖chat、convenient等词汇的搭配与拓展，look up、keep sb. company等短语的多义辨析，too…to…、With复合结构等句式的用法，以及现在分词作定语、主谓一致等语法点，构建从基础词汇到语法应用的递进学习支架。 该资料通过词汇辨析（如look up与refer to）、句式结构分析（如too…to…的否定与肯定含义）提升语言能力，借助错误例句修正（如convenient的正确表达）培养严谨思维品质，助力学生规范语言输出。课中辅助教师系统授课，课后帮助学生巩固复习，有效查漏补缺。

人教版高一英语必修二Unit 3 The Internet Section A 1. chat vi. & n. 聊天；闲聊 变形：chatted — chatting v. chat about the affair / weather chat with / to n. have a chat with sb. about sth. a friendly / pleasant / live chat a chat show 2. look up 含义1：查找；查阅（单词、资料等） look up something on the Internet look up the new word in the dictionary 含义2：（形势、生意）好转 eg. Don't get depressed about it. Things are looking up for us. 含义3：look up to sb. 尊敬；钦佩某人 辨析：refer to 查阅（参考书、资料） 3. by the way 顺便说一下；问一下 in this way 用这种方式 in one way 从某种意义上讲 in no way 决不 in the way 挡路 on the way 在路上 4. identity n. 身份；个性；身份证 短语： cultural identity 文化认同 social identity 社会认同 find out / discover one's identity 查明某人的身份 hide one's identity 隐藏某人的身份 give away one's identity 泄露某人的身份 personal identity 个性 the sense of national identity 民族认同感 拓展：identify vt. 识别；认出 句式 too…to… = not…enough to = so…that 太……而不能（确定否定含义） eg. He was too weak to walk. = He was not strong enough to walk. = He was so weak that he couldn't walk. 注释： ① too…to 结构含有not, never等否定词时； ② too之前有only, simply, just等词时； ③ too之后有anxious, eager, glad, pleased, easy等形容词时，表示肯定含义。 Section B 1. convenient adj. 方便的 搭配： be convenient for/to sb. 对某人来说是方便的 It is convenient for sb. to do sth. ⚠错误例句修正：Please come at eight if you are convenient. 正确：Please come at eight if it is convenient for you. 拓展： convenience n. 方便；便利 at one's convenience 在某人方便时 for (one's) convenience 为了(某人的)便利 bring convenience to… 给……带来便利 a convenience store 便利店 conveniently adv. 便利地；方便地 2. cash n. 现金；金钱 in cash 用现金；有现钱 have cash on sb. 某人身上带有现金 carry cash 携带现金 be low on cash 现金不足 be short of cash 现金不足/缺钱 cash down 即付现款 熟词生义：cash v. 兑现支票 cash in 捞到好处；从中牟利 3. update vt. 更新；向…提供最新信息；n. 更新；最新消息 update software / information update sb. on sth. 向某人提供有关某事的最新信息 update them on the day's developments 告诉他们当天最新的发展 keep sb. updated 向某人通报最新数据/情况 a news update 最新新闻报道 receive no update 没有收到最新消息 4. stuck adj. 卡住；陷(入)；困(于) be stuck in = be trapped in 被困于……，陷入……中 be stuck on 被难住；答不上来…… be stuck / caught / held up in a traffic jam 遇上交通堵塞 5. keep sb. company 陪伴某人 company n. 陪伴 in company with 与…一起，与…同时 for company 陪伴；做伴 in the company of 在…的陪伴下 拓展：accompany vt. 陪伴 accompany sb. to + 地点 6. surf vt. & vi. 浏览；冲浪 surf the Net / Internet surf online go surfing 7. benefit n. 益处；v. 使受益；得益于 for one's benefit = for the benefit of sb. 为某人的利益 be of benefit to = be beneficial to 对…有益的 bring benefits to 给…带来好处 benefit sb. 使某人受益 benefit by / from 从…中受益 拓展：beneficial adj. 有利的；有用的 8. distance n. 距离 in the distance 在远处 at / from a distance 从远处，隔一段距离 keep sb. at a distance 与某人保持一定的距离 keep one's distance (from) （与…）保持距离 within walking distance 很近；在步行距离之内 a distance of … ……远的距离 the distance between rich and poor 贫富间的差距 拓展：distant adj. 遥远的；冷漠的 9. inspire vt. 鼓舞；激励；启发思考 inspire sb. to do sth. → inspire many young people to work hard be inspired by 受……的鼓舞 an inspiring book 一本鼓舞人心的书 拓展： inspired adj. 激动的；受到启发的 inspiring adj. 鼓舞人心的 inspiration n. 灵感；鼓舞人心的人或事物 draw inspiration from ordinary life an inspiration to Lily 对莉莉的激励 An old saying: Genius is 1% of inspiration and 99% of perspiration. But the 1% inspiration is more important than the 99% perspiration. 10. now that 既然；由于（引导原因状语从句，口语中that可省略，不与so连用） eg. Now (that) it is raining, let's stay in the cabin for a break. eg. Now that you're ready, we can set off now. 11. together with 和…一起；连同 辨析：as well as , along with, with, besides, except等 主谓一致遵循“就远原则” eg. Tom together with his parents is going to visit the Great Wall. 12. access n. 通道；机会；（使用、查阅、接触或面见的）权利；vt. 进入；使用；读取 access to 通往…的通道；使用…的机会/权利 have direct access to the beach 有直接通往海滩的通道 have/gain/get access to 有权使用；可以接近…… have access to good resources 有机会使用好的资源 data access 数据访问 remote access 远程访问 access the Internet / information / a website 进入网络；获取信息；访问网站 拓展：accessible adj. 可进入的；可使用的 be accessible to 可进入/使用 13. go through 经历；度过；通读；检查；执行；用完；穿过 go through many difficulties 经历很多困难 go through one's papers 检查试卷 go through tasks 执行任务 go through all one's savings 花光某人所有积蓄 拓展短语： go ahead 开始做 go over 仔细检查 go against 违反；违背 go by (时间)逝去 go out 外出 go in for 爱好；参加考试（或竞赛） 14. tough adj. 艰难的；严厉的；坚强的；棘手的；toughly adv. 艰难地；严厉地 be tough on / with sb. 对某人严厉 have a tough time 日子很难过 a tough childhood 苦难的童年 as tough as nails = very tough 坚韧不拔；雷打不动，铁石心肠；不为所动 It's tough doing sth. 句式 现在分词短语作后置定语 ①单个现在分词作定语，位于被修饰词之前 ②现在分词短语作定语时，放在被修饰词之后 eg. A barking dog seldom bites. The man standing against the wall is our teacher. The meeting being held now is of great importance. the people sitting at the back … =the people who are sitting at the back … 句式 2. With复合结构 结构：with +宾语+宾补，在句子中作状语，表示时间、原因、方式、条件或伴随等。 宾补形式： 现在分词 V-ing（主动或正在进行） 过去分词 Ved（被动或已经完成） 动词不定式 to do（尚未发生） adj. / adv. /介词短语 例句： ①I can't work with all that noise going on. ②With his hair cut, he looked much younger. ③With so much work to do, I can't go on holiday. ④He often sleeps with the light on. ⑤The teacher came in with a book in his hand. 3. no matter how… 引导让步状语从句 Section C 1. function n. 功能；作用；机能；职能；vi. 起作用；正常工作运转；adj. functional 实用的；起作用的；运转的 the function of the heart 心脏的作用 perform vital function 起重要的作用 perform (fulfill) (an)… function 发挥…作用；履行…职责 perform a variety of functions 履行多种职责 function as = act as = serve as 起…作用；具有…功能 function as a mobile phone function under…conditions 在……条件下运行 function well / normally 运转良好/正常 2. confirm vt. 确认；使确信；证实；证明；批准；confirmation n. 证实；确认书；证明书 confirm that/wh-… 证实 It has been confirmed that… 已经证实 confirm sb. in sth. 使某人坚信某事（信念、地位等） confirm sb. as sth. 批准某人担任某职位 confirm one's finding 证实某人的发现 confirm one's identity 证实某人的身份 a confirmation letter / email / flight confirmation 3. press vt. 按压；敦促；熨平 press a button 按下按钮 press sb. to do sth. / into doing sth. 催促/迫使某人做某事 have this blouse pressed press ahead / on with sth. 坚持继续进行某事；加紧做某事 拓展：pressure n. 压力 be under pressure to do sth. 面临做某事的压力 put pressure on sb. 强迫某人；劝说某人 reduce / ease / give in to / deal with pressure 减轻/缓解/屈服于/应对压力 blood pressure 血压 Section D 1. in shape 状况良好 keep/stay in shape 保持健康/身材 in good shape 处于良好状态 in great shape 处于非常好的状态 in bad shape 状况不佳 out of shape 身体不好，不健康；变形的 in the shape of 呈……的形状；以……的形式 take shape 成形，有了模样 lose one's shape 走样；变形 get bent out of shape (about / over…) (为……)生气，焦躁；烦躁 2. keep track of 掌握……的最新消息；了解…的动态；记录 lose track of 不了解…的动态；与…失去联系 be on the track of 跟踪；追赶于 track and field 田径运动 thousands of miles of track 数千英里的轨道 follow his tracks 循着他的足迹 3. discount n. 折扣；vt. 打折 sell the books at a discount get/give/offer a discount a discount store / shop 10% discount 九折 v. discounted prices / fares 票价 discount sth. 某物打折出售 4. account n. 账户；描述；说明；赊欠账；v. 认为；视为 open / close an account 开立/结清账户 on account 挂账；赊账 give an account of 描述 on account of 因为 on no account 决不 take…into account / take account of… 考虑到，顾及 take no account of… 不考虑… account for 解释；是……的说明（或原因）；（数量上，比例上）占 5. rude adj. 粗鲁的；无礼的；rudely adv.；rudeness n. be rude to sb. / about sth. be in a rude manner rude behaviour / reply / words / remarks It's rude to do sth. apologise for one's rudeness 6. target n. 目标；对象；靶子；vt. 把…作为攻击目标 set a target 设定目标 achieve a target 实现目标 reach a target 达到目标 miss a target 未达到目标 hit a target 击中目标 target … at 把…对准 7. particular adj. 特定的；特别的；讲究的；particularly adv. 尤其；特别 be particular about / over… 对……讲究/挑剔 be particular about her clothes pay particular attention to 特别注意 of particular interest 尤其让人感兴趣 in particular = particularly be particularly busy 8. make fun of 取笑；戏弄（不可接不定式） 同义短语： laugh at sb./sth. play jokes / a joke on sb. play tricks / a trick on sb. 9. embarrassing adj. 让人难堪（尴尬、害羞）的；embarrass vt. 使尴尬；embarrassed adj. 尴尬的；窘迫的；embarrassment n. 尴尬 an embarrassing question / situation / incident be / feel embarrassed about / at 对…感到尴尬/窘迫 be embarrassed to do sth. an embarrassed silence to one's embarrassment eg. Don't get caught making an embarrassing mistake at a restaurant. eg. Don't be embarrassed at your failures. You should learn from them. eg. They were all staring at me — honestly, I never felt so embarrassed in my whole life. 10. upset adj. 心烦的；苦恼的；vt. 使烦恼；使生气；扰乱；变形：upset – upset be upset about sth. 为某事心烦意乱/沮丧 be upset that 因…而心烦意乱/不安 upset sb. It upsets sb. to do sth. 熟词生义：v. 打翻；使不适 upset the cup 把杯子打翻 upset one's stomach 使某人肠胃不适 11. tip n. 忠告；诀窍；实用的提示；小费；尖端；vt. 给小费；倒出；倾倒 tip on / for (doing) sth. （做）某事的提示/诀窍 the tip of her nose 她的鼻尖 leave a tip 留小费 give / offer a tip 付小费；给小费 tip the porter 10 pounds 给搬运工10英镑 tip the hot water out 把热水倒出来 12. familiar adj. 熟悉；熟知；常见的；随便的 get familiar with 熟悉 look / sound familiar 看起来/听起来熟悉 辨析： 人 + be familiar with + 事/物 事物 + be familiar to + 人 拓展：be on familiar terms with 与…交情好/关系友好 eg. make you more familiar with China eg. in familiar surroundings 13. keep…in mind = bear…in mind 牢记 Keep what I said in mind. change one's mind make up one's mind to do sth. read one's mind 看透某人的心思 fix one's mind on / upon 把注意力集中在 lose one's mind 失去理智 14. case n. 盒；箱；箱；情况；案件 in the latter case 在后一种情况下 in most cases 在多数情况下 in classic case 典型的案例 relate to the case 与案件有关 in no case 绝不，无论如何都不 in any case 无论如何，不管怎样 as is often the case 情况常如此 in case 以防 in case of 如果，假使 in case of emergency 万一发生紧急情况 in that case 既然那样 语法点：case + where / in which +定语从句 当先行词是case, situation, position, point, stage等抽象地点的名词，且定语从句中缺少地点状语时，定语从句常用 where 或 in which 引导。 学科网（北京）股份有限公司 $