Unit 1 The Changing World(知识讲解)2026-2027学年人教版九年级英语上册

2026-08-08
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学段 初中
学科 英语
教材版本 初中英语人教版九年级上册
年级 九年级
章节 Unit 1 The Changing World
类型 教案-讲义
知识点 -
使用场景 同步教学-单元练习
学年 2026-2027
地区(省份) 全国
地区(市) -
地区(区县) -
文件格式 DOCX
文件大小 51 KB
发布时间 2026-08-08
更新时间 2026-08-08
作者 学无止境-
品牌系列 -
审核时间 2026-08-08
下载链接 https://m.zxxk.com/soft/59132667.html
价格 1.00储值(1储值=1元)
来源 学科网

摘要:

该初中英语单元复习讲义围绕“人与社会—变化与变迁”主题,通过核心知识点一览表系统整合词汇、短语、句型、语法等内容,用对比表格呈现一般过去时与现在完成时差异、used to用法辨析等重难点,清晰构建知识脉络。 讲义亮点在于主题写作设计,如“Write about changes in your life since primary school”任务,结合今昔对比运用used to和现在完成时,培养语言能力与思维品质。合成词构词规律表格助力学生掌握学习策略,提升自主复习效率,教师可据此实施分层教学,帮助不同学生巩固基础、提升能力。

内容正文:

Unit 1 The Changing World(知识讲解) 一、学习目标 主题:人与社会 → 变化与变迁(Big Question: What brings about changes?) 1. talk about how things are different from the past.(谈论事物与过去的差异) 2. discuss how changes have influenced our lives.(讨论变化如何影响我们的生活) 3. find out how changes happened.(弄清楚变化是怎样发生的) 4. explore what you can do for your hometown.(思考自己能为家乡做些什么) 二、单元概览(核心知识点一览表) 板块 核心内容 单元 / 主题 人与社会 → 变化与变迁;大问题:What brings about changes? Section A: What changes have taken place around you? Section B: How do changes influence us? 必备单词 (Section A) Section A 重点词汇(家乡与变化) 1. environment n. 环境 2. change v. 改变;变化 n. 变化 3. reach v. 到达(及物) 4. travel v./n. 旅行;出行 5. hospital n. 医院 6. shopping n. 购物 7. local adj. 当地的 n. (常复) locals 当地人 8. village n. 村庄 9. sandstorm n. 沙尘暴(合成词 sand+storm) 10. farmland n. 农田(合成词 farm+land) 11. technology n. 科技;技术 12. bush n. 灌木 13. root n. 根;根部 14. soil n. 土壤 15. plant v. 种植 n. 植物 16. rough adj. 粗糙的;崎岖的(道路) 17. transport n./v. 交通;运输 必备单词 (Section B) Section B 重点词汇(变化的影响·合成词) 1. railway n. 铁路(合成词 rail+way) 2. passenger n. 乘客;旅客 3. port n. 港口 4. capital n. 首都;省会 5. wide adj. 宽的;宽阔的 6. bridge n. 桥 7. product n. 产品 8. corn n. 玉米 9. digital adj. 数字的 10. government n. 政府 11. result n. 结果;成果 12. sandy adj. 含沙的;沙质的 13. convenient adj. 方便的 14. benefit v. 受益;对…有益 n. 益处 15. experience n. 经历(可数)/经验(不可数)v. 经历 16. century n. 世纪 高频短语 1. used to 过去常常(现在不做了) 2. take place 发生(无被动) 3. over the last few years 在过去的几年里 4. cut the travel time 缩短旅行时间 5. with one's help 在某人的帮助下 6. as a result 结果;因此 7. benefit from 从……中受益 8. make business deals 做生意;达成交易 9. on time 准时 10. work together 合作;共同工作 11. build a better world 建设更美好的世界 12. compare then and now 比较过去与现在 常考句型 1. 现在完成时与一般过去时对比(Grammar Focus 4a): He became a good friend of your grandfather about 20 years ago. They haven't seen each other for ages! 2. used to do 表示过去习惯/状态: We used to have to travel far to see a doctor. 3. 现在完成时描述已发生并影响现在的变化: Our village has just built a new hospital. Many changes have taken place in the town over the last few years. 4. 描述变化的常用表达: The town / environment has changed a lot. 语音知识 1. 元音复习:/eɪ/(change, train, railway, made);/aɪ/(time, life, China, ride); /iː/(people, seen, been, experience);/ʌ/(much, bus, country, result)。 2. 句子重音与语调:描述变化时,对比信息(used to ... vs now ...)需重读。 3. 连读:used to → /juːstə/,如 used to travel。 重点语法 一般过去时 vs 现在完成时(Compare simple past tense and present perfect tense) · 一般过去时:动作发生在过去、与现在无关,常配 yesterday / ... ago / last ... · 现在完成时:过去发生、持续或影响到现在,常配 since / for / ever / never / just / already / yet / over the last few years · used to + 动词原形:过去常常(现在不做了) 主题写作 主题写作:Write about changes in your life since primary school (写一写你上小学以来的生活变化) 三、Section A 课文讲解(What changes have taken place around you?) 本板块通过 Li Rui 家乡的今昔对比,学习用一般过去时与现在完成时描述变化,并掌握 used to 的用法。(教材 Unit 1 Section A) 1 used to +动词原形,表示“过去常常做某事(现在已不做了)”,暗含今昔对比,只用于过去。 【否定/疑问】 否定 didn't use to do;疑问 Did ... use to do?(注意 use 用原形) 【辨析】 used to do(过去常做) / be used to doing(习惯于做) / be used to do(被用来做) » There used to be sandstorms all the time. 过去一直有沙尘暴。 » We used to have to travel far to see a doctor. 我们过去得走很远才能看医生。 » He is used to getting up early. 他习惯于早起。 2 change v. 改变;变化。n. 变化(可数)。 【拓展】 take place 发生(无被动语态) » How has this place changed over time? 这地方随着时间发生了怎样的变化? » Many changes have taken place in the town. 镇上发生了许多变化。 3 reach v. 到达(及物动词,后面直接接地点,不加 to)。 【辨析】 reach + 地点 / arrive at(in) + 地点 / get to + 地点 » It took a long time to reach the town. 到达那个镇花了很长时间。 4 environment n. 环境(常作单数)。 【拓展】 environmental adj. 环境的;environmental protection 环境保护 » The environment has changed a lot. 环境变化很大。 » difficult environment 恶劣的环境 5 rough adj. 粗糙的;不平的;艰难的。 【辨析】 rough(粗糙/崎岖) ↔ smooth(光滑/平坦) » Going to school by bus took long over rough roads. 在崎岖的道路上乘校车要花很久。 6 local adj. 当地的;本地的。n.(常复数 locals)当地人。 » Local Kenyans have benefited a lot from the new railway. 当地肯尼亚人从新铁路中受益匪浅。 » Locals worked by hand in the past. 过去当地人靠手工劳作。 7 take place 发生(侧重“举行 / 发生”,无被动语态)。 【辨析】 take place(按计划/自然发生) / happen(偶然发生) / break out(战争、疾病等突发) » Many changes have taken place over the last few years. 过去几年里发生了许多变化。 8 over the last few years “在过去的几年里”,与现在完成时连用,强调从过去持续到现在。 【辨析】 since + 时间点 / for + 时间段 / over the last few years(均常与现在完成时连用) » Many changes have taken place in the town over the last few years. 过去几年镇上发生了许多变化。 9 sandstorm / farmland(合成词) sandstorm = sand + storm 沙尘暴;farmland = farm + land 农田。本单元重点学习合成词构词法。 【拓展】 更多合成词:railway, highway, greenhouse, hometown, countryside 等(见后文辨析表) » There used to be sandstorms all the time. 过去一直有沙尘暴。 » They are now covered with farmland. 如今它们被农田覆盖。 四、Section B 课文讲解(How do changes influence us?) 阅读文本 On the Fast Track(蒙内铁路):2017 年在中方帮助下开通的蒙巴萨—内罗毕铁路,将两地通行时间从约 10 小时缩短到约 4 小时,极大改善了当地民生。(教材 Unit 1 Section B) 1 railway n. 铁路(合成词 rail + way)。 【拓展】 合成词构词规律:名词+名词(railway, hometown);形容词+名词(highway, greenhouse) » The new 480-kilometre Mombasa-Nairobi railway was opened in 2017. 全长480公里的蒙巴萨—内罗毕铁路于2017年开通。 2 passenger n. 乘客;旅客。 » The new railway has cut the travel time to about four hours for passengers. 新铁路把乘客的旅行时间缩短到约4小时。 3 convenient / convenience convenient adj. 方便的;便利的(不修饰人,不能说 a convenient person);convenience n. 方便。 » It is very convenient and doesn't cost much money. 它很方便,也不贵。 4 benefit v. 受益;对……有益。n. 益处;好处。 【搭配】 benefit from ... 从……中受益 » Local Kenyans have benefited a lot from the new railway. 当地肯尼亚人从新铁路中受益匪浅。 5 experience n. 经历(可数)/ 经验(不可数)。v. 经历;体验。 【辨析】 experience(经验,不可数) / experiences(经历,可数) » My experience of using the train since 2017 has been good. 自2017年以来我乘车的体验一直很好。 6 on time 准时(强调“按规定的时刻”)。 【辨析】 on time(准时) ↔ in time(及时,赶在事前) » I am able to get to places on time. 我能准时到达各地。 7 as a result 结果;因此(副词短语,常置于句首,后接逗号)。 » 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。 8 with one's help 在某人的帮助下(= with the help of sb.)。 » The new railway, built with China's help, has cut the travel time. 在中方帮助下建成的新铁路缩短了通行时间。 9 century n. 世纪。 【拓展】 in 1901 = in the 20th century 初;an old railway line built in 1901 有百余年历史 » An old railway line was built in 1901. 一条旧铁路线建于1901年。 10 work together 合作;共同工作。 » The railway shows how different countries can work together to build a better world. 这条铁路展示了不同国家如何合作建设更美好的世界。 五、重点辨析(高频考点) 1. used to do / be used to doing / be used to do 结构 含义 例句 used to do 过去常常做(现在不做了) We used to travel far to see a doctor. be used to doing 习惯于做某事(to 为介词) He is used to getting up early. be used to do 被用来做(被动语态) Bamboo can be used to make furniture. 2. 一般过去时 vs 现在完成时 时态 侧重点 标志词 例句 一般过去时 过去某时发生的动作,与现在无关 yesterday, ... ago, last week, in 2017 It opened last Friday. 现在完成时 过去发生、持续或影响到现在 since, for, ever, never, just, already, yet, over the last few years They haven't seen each other for ages. 3. since / for / over the last few years 时间状语 接什么 时态 例句 since 时间点(since 2017 / since then) 现在完成时 I have used it since 2017. for 时间段(for ages / for 10 years) 现在完成时 They haven't seen each other for ages. over the last few years 固定短语“近几年来” 现在完成时 Many changes have taken place over the last few years. 4. 合成词构词规律(本单元词汇重点) 合成方式 例词 构成 名词 + 名词 railway, hometown, classroom rail + way;home + town;class + room 形容词 + 名词 highway, greenhouse, sandbox high + way;green + house;sand + box 名词 + 名词(自然现象) sandstorm, snowfall, rainfall sand + storm;snow + fall;rain + fall 名词 + 名词(土地) farmland, grassland farm + land;grass + land 5. on time / in time 短语 含义 例句 on time 准时(按规定的时刻) The train arrives on time. in time 及时(赶在事前/出事前) We got there in time to catch the train. 6. reach / arrive / get to 表达 用法 例句 reach 及物,直接 + 地点 We reached the town at noon. arrive arrive at + 小地点 / arrive in + 大地点 They arrived in Nairobi. get to get to + 地点 It took long to get to the village. 六、主题写作指导(Write about changes in your life since primary school) 写作任务:写一写你上小学以来的生活变化。建议用一般过去时描述过去,用现在完成时/今昔对比突出“变化”,并运用 used to。 写作框架: ① 开头:点明话题——Since I started primary school, my life has changed a lot. ② 主体(2–3 段):从学习、爱好、生活等方面对比过去与现在,用 used to / didn't use to / now ... ③ 结尾:感受与展望——These changes make me ... / I will ... for a better future. 参考范文(Sample): Since I started primary school, my life has changed a lot. I used to be shy and afraid of speaking in public. Now I am more confident and enjoy taking part in school activities. My study habits have also improved. I didn't use to make plans, but now I have a clear daily schedule and finish my homework on time. Besides, transport around my hometown has become much more convenient. We used to travel on rough roads; now there are wide, clean streets and even a new railway nearby. These changes make me happy and hopeful. I will keep working hard to build a better future for myself and my hometown. 学科网(北京)股份有限公司 $

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Unit 1 The Changing World(知识讲解)2026-2027学年人教版九年级英语上册
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Unit 1 The Changing World(知识讲解)2026-2027学年人教版九年级英语上册
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Unit 1 The Changing World(知识讲解)2026-2027学年人教版九年级英语上册
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