Unit 1 单元知识点讲练 【精讲课件】2026-2027学年九年级英语上册同步精品课件（新教材人教版）

该初中英语单元复习课件围绕“The Changing World”主题，系统梳理现在完成时、It takes句型、used to do用法及spend/cost等词语辨析等核心语法与词汇，通过对比表格、例句解析和语境应用构建“语法-词汇-句型”知识网络，清晰呈现知识点内在逻辑。 其亮点在于采用“讲练结合-对比辨析-分层突破”复习策略，如用表格对比spend/cost/take/pay的主语与搭配，设计used to do从基础填空到语境翻译的分层练习，培养学生语言能力和思维品质，助力学生巩固知识，教师提升复习针对性。

Unit One The Changing World What brings about changes? 单元知识点讲练 They haven't seen each other for ages! How the place has changed since he last visited. 现在完成时 have/has + 过去分词 常用来表示从过去持续到现在的动作或状态。 for + 时间段：表示动作持续了多久 since + 时间点：表示动作从某个时间点开始，持续到现在 例句：自从上次见面后，这里发生了很大的变化。 The place has changed a lot since we last met. Language points Language points It took half a day to reach the town. 句意：“到达镇上花费半天时间。” It takes (sb.) some time to do sth. 做某事花费（某人）一段时间 其中it为形式主语，真正的主语是后面的动词不定式（短语） 例句：It took them three hours to watch the movie. 看电影花费了他们3个小时。 We spent seven days finishing the work. 我们花费了七天完成这份工作。 2 拓展：人+spend (s)+时间+doing sth 人+spend (s)+时间+on sth 词 语 辨 析 Language points 练 1.I ______ two hours on my homework every day. A. take B. spend C. cost D. pay 2.根据汉语意思完成句子。 咨询师Linda花了两个小时跟Andy沟通。 _____ _____the counselor Linda two hours ____ ____________ with Andy. B It took to communicate Language points They used to have to travel far to see a doctor. 句意：“他们过去得去很远的地方看医生。” used to do sth 过去(常常)做某事 主语为人或物，表示过去经常发生的动作 3 拓展：be used to do sth 被用来做某事 主语多为物，强调某物的用途，与be used for doing sth 同义 be used to doing sth 习惯于做某事 主语为人或物，表示过去或现在的习惯性动作，与get used to doing sth同义 Language points 例句：He used to be very shy and afraid to speak. 他以前很害羞，不敢讲话。 This gym is used to hold different kinds of school activities. 这个体育馆被用来举办各种学校活动。 My uncle is used to walking for an hour after dinner every day. 我叔叔习惯每天晚饭后散步一小时。 Used to be 用法详解 used to 是固定句式结构后接动词原形： 肯定句 否定 疑问句 反义疑问句 过去曾经是used to be +形容词/名词+ 介词短语 过去曾不。主语 +didn’t use to be+...（+其他）. 过去是否Did+主语＋used to be＋...？ 肯定回答：Yes， … did/No,...didn’t. 否定回答：No，… won't. 附加疑问加强语气used to be didn’t +主语? The road used to be narrow,didn’t it? 时间标志&语境常于before,in the past搭配。 4. 辨析 used to do、used to doing、use sth to do sth、be used to do sth ① used to do sth：过去常常，现在不做了 否定式：didn’t use to do /used not to do（口语更常用 didn’t use to） 疑问式：Did you use to...? 关键：to 是不定式符号，后面必须接动词原形 例：He used to smoke, but he quit last year.（他过去抽烟，去年戒了。） Language points 5. 辨析 used to do、used to doing、use sth to do sth、be used to do sth ② be/get used to doing：习惯于… 核心坑点：to 是介词！ 后面必须接 doing / 名词，不能接动词原形！ 例：I am used to the cold weather.（我习惯了寒冷的天气。） He is used to working at night.（他习惯了熬夜工作。） 注意：get used to 更强调 “逐渐习惯” 的过程， be used to 强调 “已经习惯” 的状态。 Language points . 辨析 used to do、used to doing、use sth to do sth、be used to do sth ③ Sb.+ use sth to do sth：主动使用某物做某事 主语是人，动作是主动发出的，强调 “使用者” 和 “用途” 的关系 例：She uses her phone to take photos.（她用手机拍照。） Language points ④ Sth.+ be used to do sth：被动语态，某物被用来做某事 是 use sth to do 的被动形式，主语是物，表某物的固有用途 可以和 be used for doing sth 互换： Knives are used to cut things. = Knives are used for cutting things. 辨析 used to do、used to doing、use sth to do sth、be used to do sth ③ Sb.+ use sth to do sth：主动使用某物做某事 主语是人，动作是主动发出的，强调 “使用者” 和 “用途” 的关系 例：She uses her phone to take photos.（她用手机拍照。） Language points ④ Sth.+ be used to do sth：被动语态，某物被用来做某事 是 use sth to do 的被动形式，主语是物，表某物的固有用途 可以和 be used for doing sth 互换： Knives are used to cut things. = Knives are used for cutting things. Language points 练 1.He ______ play basketball every day, but now he likes swimming. A. used to B. use to C. is used to D. was used to 2.适当形式填空。 He used to __________ (live) in a small village. A live 6. track n. 意为“小路；轨道”，是可数名词。 railway tracks 铁轨。 track 作名词，还可意为“足迹；踪迹；车辙”，常用复数形式。 track 还可作动词，意为“追踪；跟踪；留下足迹”。 例：We followed a narrow track through the forest to the waterfall. 我们沿着一条窄小径穿过森林，前往瀑布。 Workers have spent three months laying new railway tracks.工人们花了三个月铺设新铁轨。 We followed the bear’s tracks in the snow.我们跟着熊在雪地上留下的足迹走。 13 wide /waɪd/ adj. 宽的；宽阔的 wide  作副词，仅用于修饰“与具体空间、物理状态相关的动作或状态”，如open wide。 widely  仅用于修饰“与抽象范围、认知、分布相关的动作或状态”，如widely used。 wide adj.广泛的;宽的；宽阔的 反义词为narrow(狭窄的) (1)widely adv. 广泛地 (2)width n. 宽度 (3)widen v. 加宽 7. wide /waɪd/ adj. 宽的；宽阔的 Language points The hills were covered with sand. 句意：“山上覆盖着沙子。” be covered with sth. 被......覆盖 为被动形式，其主动形式为cover...with..“用……覆盖……” 例句：The ground is covered with snow in winter 冬天地面被雪覆盖。 She covers the teddy bear with a cloth. 她用布盖住泰迪熊。 8 Language points 练 1.Most of the mountain ______ trees. A. cover with B. are covered with C. is covered with D. covers 2.根据汉语意思完成句子。 20世纪80年代，毛乌素沙漠完全被荒沙覆盖。 In the 1980s, the Mu Us Desert was fully _______ _______ barren sand. C covered with 9. improve 动词，改善；提高。名词 improvement；形容词 improved。 常见搭配：improve one‘s life / improve the environment / improve skills Regular exercise can improve your health. The government is trying to improve the public transportation system. Let’s learn and take notes 10. since then 时间状语短语，从那时起（直到现在），同义词 from then on 常与现在完成时连用。 He moved to Shanghai in 2010 and has worked there since then. Since then, the village has built two new schools. 11.bring about 短语 带来；引起 用法：后接名词或代词作宾语，表示“使某事发生”。 固定搭配：bring about changes（带来变化），bring about a result（带来结果） 辨析：bring about 强调“引起变化或结果”；cause 强调“导致（通常是不好的结果）”。 词 讲 练 What brings about changes?（是什么带来了变化？） The new roads have brought about great changes in the town.（新公路给这个小镇带来了巨大的变化。） 例 填空：The new technology ____________ great changes in our daily life. 翻译：是什么带来了这些变化？ brings about What brings about these changes? 12.rough /rʌf/ adj. 崎岖的；粗糙的 词性转换：副词 roughly（粗略地；粗暴地） 固定搭配：rough road（崎岖的道路），rough weather（恶劣的天气） 辨析：rough 指表面不平；bumpy 指颠簸不平。 词 讲 练 The bus took nearly 40 minutes over rough roads.（公交车在崎岖的路上花了将近40分钟。） The sea was rough during the storm.（暴风雨期间海面波涛汹涌。） 例 填空：I don't like the ______ road because it makes me feel sick. 翻译：以前这条路很崎岖，但现在很平坦。 rough The road used to be rough, but now it is very smooth. 13. How has life changed in your hometown over the last 20 years? 现在完成时特殊疑问句：How have/has + 主语 + 过去分词…? over the last + 时间段 How has your school changed in the past five years? 2.The new highway and railway must have helped a lot! must have + 过去分词，对过去事情做肯定推测，意思是“一定已经…了” The ground is wet. It must have rained last night. 14.attraction attract (v. 吸引) attraction (n. 吸引；名胜古迹/景点) attractive (adj. 有吸引力的) the way 后面跟了一个定语从句。省略了关系代词 that 或 in which。意为“改变了我们耕作的方式”。 The Great Wall is a famous tourist attraction. 4.We’ve changed the way we farm. I don't like the way (that) you speak to your mother. 15. The only transport links between Mombasa and Nairobe. link /lɪŋk/ n. 交通路线；联系 v. 连接 a link between A a nd B A 与B 之间的联系 break the link 打破联系 / 纽带 link A to/with B 将 A 与B 连接 / 联系起来 例： There is a strong link between regular exercise and good health. 规律运动和身体健康之间存在密切联系。 Language Points 16. I am able to get to places on time and make business deals with ease. ease n.容易；自在 v.使减轻/ 缓解 ease pain 缓解疼痛 ease stress 减轻压力 ease 的词形变化： easy adj. 容易的 easily adv. 容易地 例：She passed the exam with ease.她轻松通过了考试。 The warm room made Mary feel at ease after the long trip. 长途旅行后，温暖的房间让玛丽感到自在舒适。 Language points 17. As a result, people now have more fresh food to eat. 结果，人们现在能吃上更多新鲜食物了。 as a result ：结果、因此 as a result of 由于……的结果（介词短语，后接原因） result in 导致，造成（结果） result from 由……引起，起因于（后接原因） 例 讲 句 1. As a result of the heavy rain, the match was cancelled. 由于大雨，比赛被取消了。2. Hard work can result in success. 努力工作能带来成功。 3.Success results from careful planning and effort. 成功源于周密的计划和努力。 Language points 18. Before then, the only transport links between Mombasa and Nairobi were rough roads and an old railway line. 在那之前，蒙巴萨和内罗毕之间唯一的交通连接是崎岖的公路和一条旧铁路线。 例 讲 句 transport v.运输，运送；n. 交通运输，运输工具 public transport 公共交通 transport...from...to... 把……从……运到…… transportation (n.) 运输，交通（美式常用，与transport同义） Trucks transport fresh vegetables from farms to supermarkets. 卡车把新鲜蔬菜从农场运到超市。 The railway has also made the transport of food easier. 这条铁路还让食品运输变得更加容易。 Language points 19. I am able to get to places on time and make business deals with ease. 我能准时到达各地，轻松地达成商业交易。 deal n.交易，协议 ；v. 处理，应对 deal with 处理，应对 a great deal of 大量的（接不可数名词） make a deal 达成协议/做交易 例 讲 句 1. We need to deal with this problem immediately. 我们需要马上处理这个问题。 2. The project requires a great deal of time and effort. 这个项目需要大量的时间和精力。 3. The two companies made a deal to share technology. 这两家公司达成了技术共享的协议。 Language points 20.It is very convenient and doesn’t cost much money. 它非常方便，而且花费不多。 例 讲 句 convenient adj.方便的，便利的 convenience (n.) 方便，便利。at your convenience 在你方便的时候 inconvenient (adj.) 不方便的 1. The supermarket is open 24 hours for the convenience of customers. 这家超市24小时营业，方便顾客。 2. The bus schedule is really inconvenient for night workers. 这个公交时刻表对夜班工人来说很不方便。 3. You can pay the bill at your convenience. 你可以在方便的时候付款。 Language points 21. Local Kenyans have benefited a lot from the new railway. 当地的肯尼亚人从这条新铁路中受益良多。 例 讲 句 benefit v.使受益；获益；n.好处，利益 benefit from 从……中获益 beneficial (adj.) 有益的，有利的 反义词：harm (v./n.) 伤害 1. We can all benefit from regular exercise. 我们都能从经常锻炼中获益。 2. Fresh food is beneficial to our health. 新鲜食物对我们的健康有益。 3. Smoking will benefit no one; it only harms your body. 吸烟对谁都没好处，只会伤害你的身体。 Language points 22. A digital product is something you sell online and doesn't have a physical form. 数字产品是指你在网上销售的、没有实体形态的东西。 product /ˈprɒdʌkt/（n.）产品 produce（v.）生产 production （n.）生产 productive （adj.）多产的 例 讲 句 eg. An e-book is a digital product without a physical form. 一本电子书就是没有实体形态的电子产品。 Language points 23. Beijing, China's capital, hosted the 2008 Summer Olympics and the 2022 Winter Olympics. 北京是中国的首都，举办了2008年夏季奥运会和2022年冬季奥运会。 例 讲 句 capital /ˈkæpɪtl/（n.）首都；资本；大写字母 搭配：capital city 首都 / capital letter 大写字母 make capital from 从…获利 eg. Paris is the capital of France, famous for art and culture. 巴黎是法国的首都，以艺术和文化闻名于世。 Language points 24. The road used to be narrow and dirty. Now, it is wide and clean. 这条路过去又窄又脏。现在又宽又干净。 wide /waɪd/（adj.）宽的；广泛的 反义词：narrow（窄的） width （n.）宽度、广度 搭配：wide river （宽阔的河流）、 wide knowledge（广泛的知识） 例 讲 句 eg. 1. The river is too wide to swim across. 这条河太宽了，而不能游过去。 2. She has a wide smile. 她笑容灿烂。 25.technology / tekˈnɒlədʒi / n. 技术；科技 词性转换：形容词 technological（技术的），名词 technologist（技术专家） 固定搭配：modern technology（现代科技），information technology（信息技术） 用法：可数或不可数名词，泛指“科学技术”。 辨析：technology 强调“技术、工艺”；technique 强调“技巧、方法”。 词 讲 练 Technology has changed our lives greatly.（科技极大地改变了我们的生活。） Many people use smart devices and modern technology.（许多人使用智能设备和现代科技。） 例 填空：The development of ________ has made communication much easier. 翻译：科技给我们的生活带来了许多便利。 technology Technology has brought much convenience to our lives. 26.entertainment / ˌentəˈteɪnmənt / n.娱乐；消遣 词性转换：动词 entertain（使娱乐），形容词 entertaining（有趣的） 固定搭配：entertainment industry（娱乐业），place of entertainment（娱乐场所） 用法：不可数名词，泛指“娱乐活动”。 辨析：entertainment 指“娱乐、消遣”；fun 指“乐趣、快乐”。 词 讲 练 What did you do for entertainment when you were young?（你年轻时做什么娱乐活动？） Watching films is a popular form of entertainment.（看电影是一种受欢迎的娱乐形式。） 例 填空：These days, children have many ways of _____________ (entertain). 翻译：电视是我们家中主要的娱乐方式。 entertainment TV is the main form of entertainment in our home. 27.medical / ˈmedɪkl / adj. 医疗的；医学的 词性转换：名词 medicine（药；医学） 固定搭配：medical care（医疗保健），medical treatment（医疗治疗） 用法：作定语，修饰名词，表示“与医疗有关的”。 辨析：medical 指“医疗的、医学的”；physical 指“身体的、物理的”。 词 讲 练 Housing and medical care are very important in life.（住房和医疗保健在生活中非常重要。） She works in a medical centre.（她在一家医疗中心工作。） 例 填空：The village has built a new __________ (medicine) centre. 翻译：村民们现在能获得更好的医疗服务。 medical The villagers can now get better medical care. 28.opportunity / ˌɒpəˈtjuːnəti / n. 机会 固定搭配：have an opportunity to do sth.（有机会做某事），take the opportunity（抓住机会） 词性转换：形容词 opportune（合适的；及时的） 用法：可数或不可数名词，指“有利的时机或机会”。 辨析：opportunity 强调“好机会、良机”；chance 强调“可能性、偶然的机会”。 词 讲 练 Change is the opportunity to create a better future.（变化是创造更美好未来的机会。） I had the opportunity to travel abroad last year.（去年我有机会出国旅行。） 例 填空：This is a great __________ for you to learn new skills. 翻译：我们应该抓住机会改善我们的生活。 opportunity We should take the opportunity to improve our lives. 29. common / ˈkɒmən / adj. 常见的；普通的 词性转换：副词 commonly（通常地） 固定搭配：common sense（常识），have...in common（有共同点） 用法：作定语或表语，表示“普遍的、常见的”。 辨析：common 强调“常见的、普通的”；ordinary 强调“平凡的、不起眼的”。 词 讲 练 Home computers are now very common.（家用电脑现在非常普遍。） They have a lot in common.（他们有很多共同点。） 例 填空：Smartphones have become ______________ (common) than before. 翻译：这个习惯在年轻人中很常见。 more common This habit is very common among young people. 30. There are sections with books about science and Chinese culture, as well as a huge section with children’s books. 有关于科学和中国文化的书籍区域，还有一个巨大的儿童书籍区域。 as well as 除……之外，也，还 as well as as well 含义 除……之外，也，还 也，还 位置 位于所连接的两个成分之间，不能位于句尾 通常位于句尾 用法 连接对等成分，在语义上通常强调其前面的信息（翻译时通常先译后面的，再译前面的） 无侧重，用于补充信息 It’s a good time for you to be with each other as well as having the enjoyable food. 这是你们品尝美味佳肴和相聚的好时光。 Reading more books can improve our English as well. 多读书也能提升我们的英语水平。 as well as连接两个并列成分作主语时，谓语动词应与其前面的主语保持人称和数的一致。 Tony as well as his friends is from England. 托尼还有他的朋友们都来自英格兰。 用法拓展 32. ...and most roads were just dirt tracks. 而且大多数道路都只是泥土路。 dirt /dɜːt/ n. 泥土；尘土（不可数） Pack the dirt firmly round the plants. 将植物周围的土培实。 Little Tom is playing in the garden and his face and hands are covered with dirt. 小汤姆正在花园里玩，他的脸和手上全是泥。 dirt n. 泥土；尘土 dirty adj. 脏的 If you step on the dirt in the yard, your shoes will get dirty quickly. 如果你踩到院子里的泥土，你的鞋子会很快变脏。 33. This made it difficult for locals to bring products to the market or to develop industry. 这使得当地人很难将产品运到市场上或发展工业。 make it + adj. + for sb. + to do sth. 使做某事对某人来说是…… 该句型中it是形式宾语，不可省略，真正的宾语是to do sth.。 Some useful apps made it convenient for me to live here. 一些有用的应用程序让我在这里的生活很方便。 Teamwork makes it possible for us to finish the task quickly. 团队合作使我们快速完成任务成为可能。 We all consider it necessary for us to take notes in class. 我们都认为上课记笔记对我们来说很有必要。 有此用法的常见动词还有find、 think、consider等。 34. The government has built thousands of kilometres of highways, railways, and wide roads. 政府已经修建了数千公里的高速公路、铁路和宽阔的道路。 （表示道路、河流等）宽的 （表示距离）宽度为……的 The small path starts narrow and becomes wide from here. 这条小路一开始很窄，到这个地方就变宽了。 wide （表示眼睛）睁大的 Her eyes were wide with wonder. 她惊讶地睁大了眼睛。 The river is more than three metres wide. 这条河宽3米多。 $