Unit 1 The Changing Word. 重点单词短语句型&写作通用表达（知识清单）-2026-2027学年九年级英语上册基础知识专项讲练（新教材人教版）

该初中英语单元知识清单系统梳理了“ The Changing World ”主题内容，涵盖重点词汇（含拓展）、核心短语、关键句型及写作通用表达，搭建了从基础词汇积累到句型应用再到写作输出的递进式学习支架。 清单通过“词汇拓展关联”“句型功能分类”“写作分层指导”构建知识体系，如“短缺n.”标注“短的adj.”拓展，句型聚焦“used to do”今昔对比，写作按“总-分-总”结构提供交通、生活、环境分层模板，培养学生语言能力和思维品质。设计“写作目标四维度”和“万能模板句”，如开头“Great changes have taken place...”，助力不同学生高效掌握，教师可直接用于课堂教学与复习巩固。

Unit 1 The Changing World 重点单词词汇变形短语句型&写作通用表达 重点单词 ____________adj.崎岖的 ____________n.沙尘暴 ______________　n.耕地 ______________　n.短缺 【拓展】adj.短的；短缺 _____________ ____________　　n.缺乏 _____________　　n.灌木 ________________　　n.根 _______________　n.土壤 _____________　　adj.铺满沙子的; 含沙的 【拓展】n. 沙子 ______________ ________________　n.政府 _________________　　n.&v.支持 __________________　　n.玉米；谷物 _________________ 　　adj.高科技的 ________________　　n.温室 _________________　　n.公路 _______________　　n.铁路 _______________　　n.向往的地方；　吸引力 【拓展】v.吸引；引起.......的好感 ______________ _____________　　n.产品 【拓展】v.生产；创造 _______________ ________________　　adv.大大地；非常 【拓展】adj.巨大的；极大地 _____________ ______________　　adj.社会主义的n.社会主义者 【拓展】adj.社会的 ________________ _________________　n.电子支付 _________________　　n.住房；住宅 【拓展】n.房屋 ________________ __________________　　adj.电子的 _____________　　adj.音频的n.音频 ________________　　n.泥土；尘土 ______________　　n.小路；轨道 ________________　　adj.宽的；宽阔的 ______________　　n.交通路线；联系v.连接 ________________　　n.港口 ___________________　　n.首都 ______________　　n.肯尼亚人adj.肯尼亚的；肯尼亚人的 【拓展】n.肯尼亚 ______________ ______________　　v.得益于；使受益n.优势；益处 _______________　adj.方便的 ______________　　n.生意；商业 【拓展】adj.忙的；繁忙的 _______________ ______________　　n.容易；自在 【拓展】adj.容易的；简单的 _________________ _____________　　n. 卡车 _________________　　n.经理 【拓展】v.管理；负责 _________________ ____________　　n.总结 【拓展】v. 得出结论 ______________ __________________　　adj.狭窄的 ____________________　　n.村民 ___________________　　v.带领；过（某种生活）n.领先地位；主角 _______________　adj.人造的；非天然的 ______________　　n. 奇迹 _____________　　adj.低年级的；初级的 _________________　　n.公寓 _______________　　n. 讨论 【拓展】v. 讨论 ___________________ _______________　　n. 方面 重点短语 1.____________________带来；引起 2._______________________ 靠双手 3._____________________被…覆盖 4.________________________缺乏… 5._______________________一直 6._________________从那时起 7._____________________相当多 8.______________________回来 9.______________一些，几个 10.__________________成吨的；许多；大量 11._______________________.把某物卖给某人 12.___________________遍及 13._________________按某人的意见；据某人看来 14.___________________很久；很长时间 15.__________去过（某地）________________去了（某地） 16._____________也；还；并且；除…之外（还） 17.______________ 在过去 18.________________发生；举行 19._________________成千上万的 20.___________________因此，结果 21._________________在…和…之间 22.___________到达 23._________________ 在某人的帮助下 24._________________ 把......缩短/削减到...... 25.________________超过，多于 26._________________从......受益 27._________________对…感到满意 28._________________准时 29.______________轻而易举地 30.________________遥远 31._________________互相 32.________________听说 33.__________________作为…而闻名 34._______________和…不同 35._______________小学 36._________________例如 37.______________离…远 38.___________________也 39._______________保持不变 40.______________________ …的数量 重点句型 1、____ ____ half a day _______ ________ the town.到达镇上花费半天时间。 2、They ____________ ___________ have to travel far to see a doctor.他们过去得去很远的地方看医生。 3、The hills _______ __________ _________ sand.山上覆盖着沙子。 4、There used to be sandstorms all the time, and the fields were getting ___________ _____ __________.过去一直有沙尘暴，而且田地变得越来越小。 5、They began planting it in sandy areas,_______ the _________ ___________.在政府的支持下，他们开始在沙地里种植这种灌木。 6、I used to grow a few vegetables on a small farm ________ _________ at the local market.过去我在一小块农田里种些蔬菜，拿到当地市场去卖。 7、There, I grow_________ ________ fruit and vegetables,and sell them in large cities.在那里，我种植大量的水果和蔬菜，并销往各大城市。 8、_____ __________ ___________, what has changed the most in your hometown in the last 10years?在你看来，过去10年里你的家乡变化最大的是什么？ 9、There are sections with books about science and Chinese culture, ______ ______ ______ a huge section with children's books.有关于科学和中国文化的书籍专区，还有一个很大的儿童书籍区。 10、This __________ ________ difficult _______ locals _______ _________ products to the market or to develop industry.这使得当地人很难把产 11、Now great changes have _________ ______.现在已经发生了巨大的变化。品运到市场，也很难发展工业。 12、The government has built ________ __________ kilometres of highways, railways, and wide roads.政府修建了数千千米的公路、铁路和宽阔的道路。 13、_______ ________ _________, the lives of local people have improved. 结果，当地人的生活得到了改善。 14、In 2017, the new ________________ Mombasa-Nairobi railway was opened. 2017年，全新的480千米蒙巴萨-内罗毕铁路正式通车。 15、I'm very ____________ __________ the new railway built by our Chinese friends.我对中国朋友修建的这条新铁路感到非常满意。 16、I _______ ________ _________ get to places _____ _______ and make business deals _____ ________.我能准时到达各地，轻而易举地谈成生意。 17、_______ _________ ________ people who use the new train every year每年使用新火车的人数 18、Have you seen or ________ ________ any similar changes in the world over the last several years??在过去几年里，你在世界上见过或听说过类似的变化吗？ 19、They ________ _______ corn,vegetables,and insects,.它们以玉米、蔬菜和昆虫为食。 20、Today.Saihanba ______ ____________ ____________"the green miracle”、如今，塞罕坝被誉为“绿色奇迹”。 单元写作通用表达&范文背诵 【写作话题】 本单元的话题是“变化的世界”，写作时应围绕着对比人或事物的过去与现在展开。文章通常采用“总一分一总”的结构，开头总领全文，点明人和事物发生了巨大变化；中间部分可从生活环境、交通方式、日常生活等角度分层展开，通过今昔对照凸显变化的具体方面；结尾则结合自己的情况，阐述能采取的行动，或表达对未来的美好展望。描写过去的状态与事件时使用一般过去时，描写当下的情况或过去变化对现在产生的影响时，用一般现在时或现在完成时。人称以第一、三人称为主。 [教材典句] ①Now great changes have taken place. ②The road used to be narrow and dirty. ③This made it difficult for locals to bring products to the market or to develop industry. ④There used to be sandstorms all the time,and the fields were getting smaller and smaller. 【写作目标】 1. 主题目标：围绕今昔对比，描写社会、生活、交通、环境等方面的过去与现在的不同，突出世界/生活发生的巨大改变。 2. 结构目标：严格使用总—分—总经典考场结构，逻辑清晰、层次分明，贴合中考评分标准。 3. 内容目标：从交通出行、日常生活、居住环境三个核心角度分层描写，运用used to do 今昔对比句型，内容充实、紧扣话题。 4. 情感目标：通过对比变化，抒发对美好生活的珍惜，结合青少年身份写出个人行动，展望未来发展，升华文章主旨。 【写作步骤】 步骤一：开头【总领全文·点题】 写作任务：开门见山，直接点明近些年我们的生活、世界发生了翻天覆地的变化，引出下文对比。 万能模板句： Great changes have taken place in our life and the world in recent years. Our world is changing fast, and our daily life is totally different from the past. 步骤二：中间【分层分述·今昔对比 核心段落】 写作任务：分三个角度分层对比，先用 In the past 描述过去落后、不便的状态，再用 Now / At present 描述现在的便利、美好，形成鲜明对比。 分层写作角度+模板句型： 1. 交通出行对比 In the past, people used to go out on foot or by bike. It was slow and tiring. However, now we have high-speed trains, subways and private cars, which make our trips fast and convenient. 2. 日常生活对比 People used to communicate by writing letters and had few ways to relax. Today, we can chat online, shop on the Internet and enjoy all kinds of colorful activities easily. 3. 居住环境对比 Years ago, living conditions were poor and the environment was polluted sometimes. At present, more tall and bright buildings appear, and our living environment becomes cleaner and more beautiful. 步骤三：结尾【总结升华·行动+展望】 写作任务：总结变化带来的美好生活，结合青少年身份写自身做法（努力学习、珍惜生活），最后展望未来、升华主题。 万能模板句： These great changes bring us a comfortable and happy life. As teenagers, we should study hard and cherish the present life. I believe our world will become much more wonderful with our hard work in the future. 【词汇积累】 单词 ①change v.& n. 改变；变化 ②development n. 发展 ③improve v. 改善；提高 ④progress n. 进步 ⑤society n. 社会 ⑥transport n. 交通 ⑦condition n. 条件；状况 ⑧technology n. 科技 ⑨convenient adj. 方便的 ⑩modern adj. 现代的 ⑪past n. 过去 adj. 过去的 ⑫present n. 现在 adj. 当前的 ⑬rapid adj. 迅速的 ⑭communication n. 交流；通讯 ⑮online adj. 线上的 ⑯environment n. 环境 ⑰possible adj. 可能的 ⑱realize v. 意识到；实现 ⑲memory n. 记忆 ⑳future n. 未来 短语 ①in the past 在过去 ②at present 目前；现在 ③take place 发生 ④great changes 巨大变化 ⑤because of 由于 ⑥with the development of 随着…… 的发展 ⑦used to do 过去常常做 ⑧in one’s daily life 在某人日常生活中 ⑨more and more 越来越 ⑩instead of 代替；而不是 ⑪keep up with 跟上 ⑫play an important role in 在…… 起重要作用 ⑬make a difference 产生影响 ⑭look forward to 期待 ⑮as time goes by 随着时间流逝 【句式积累】 开头句（总领全文，点明变化） ①Great changes have taken place in our world during these years. 这些年，我们的世界发生了巨大的变化。 ②Our world is changing so fast that we can feel the differences everywhere. 我们的世界变化如此之快，我们处处都能感受到这些不同。 ③Compared with the past, our society has experienced great progress. 和过去相比，我们的社会取得了巨大进步。 ④Times are changing, and many things around us are quite different from what they used to be. 时代在改变，我们身边很多事物和过去大不相同。 ⑤It’s amazing to see how much our world has changed over the years. 看到这些年来世界发生如此大的改变令人惊叹。 中间句（今昔对比：环境、交通、日常生活） ①People used to go out on foot or by bike, but now more people choose high‑speed trains. 人们过去步行或骑车出行，但现在更多人选择高铁。 ②In the old days, people mainly communicated by writing letters while they chat online at present. 在过去人们主要写信沟通，然而现在他们网上聊天。 ③The living conditions were poor in the past, but most families live much more comfortably today. 过去生活条件艰苦，但如今大多数家庭生活舒适得多。 ④There used to be fewer tall buildings, and modern high‑rises can be seen everywhere now. 过去高楼很少，如今现代化高楼随处可见。 ⑤With the development of technology, our daily life becomes far more convenient than before. 随着科技发展，我们的日常生活变得比以前方便得多。 ⑥Years ago, people hardly had colourful fun activities, but now they have many ways to relax themselves. 多年前人们几乎没有丰富的娱乐活动，但现在有很多放松的方式。 ⑦In the past, it took people a long time to travel far away, but the traffic saves us plenty of time now. 过去远行要花费很长时间，如今交通帮我们节约大量时间。 ⑧Some places used to be polluted, yet people are trying their best to make the environment better. 一些地方过去污染严重，但现在人们尽全力改善环境。 ⑨Children used to play outdoors most of the time, while many kids enjoy digital activities nowadays. 过去孩子大多在户外玩耍，然而如今很多孩子喜爱数字活动。 ⑩More people can get good medical care now, which was impossible many years ago. 现在更多人可以获得良好医疗，这在很多年前是不可能的。 结尾句（谈行动、展望未来） ①As teenagers, we should study hard so that we can make our world even better. 作为青少年，我们应当努力学习，让我们的世界变得更加美好。 ②I believe our world will become more beautiful if everyone makes a small difference. 我相信如果每个人贡献一点力量，世界将会变得更加美好。 ③Though we enjoy the convenient life now, we still need to keep working for a brighter future. 虽然我们享受便利生活，但我们仍要为更加光明的未来继续奋斗。 ④I look forward to seeing more wonderful changes in our world in the coming days. 我期待在未来看到世界更多美好的改变。 ⑤It is our duty to value the present and try our best to create a better tomorrow. 珍惜当下，尽全力创造更美好的明天是我们的责任。 【俗语谚语】 ①Time changes, and so do people. 时代变迁，人亦随之改变。 ②Progress is the activity of today and the assurance of tomorrow. 进步是今日的行动，明日的保障。 ③The world is constantly changing. Nothing stays the same forever. 世界不断变化，没有什么永恒不变。 ④Every new day brings new changes. 每一天都会带来新的改变。 ⑤If you want the future different, act in the present. 想要不一样的未来，就要在当下行动。 【范文欣赏】 Great Changes in Our World Great changes have taken place in our world over the past few years. Our society is developing rapidly, and people’s daily life is quite different from it used to be. In the past, people lived a simple and hard life. They mainly went out on foot or by bike. People communicated with others by writing letters, and there were few entertainment ways. However, things are totally different at present. With the development of modern technology, convenient traffic like high-speed trains makes our travel easier. We can chat online and get information in seconds. Besides, people’s living conditions have improved greatly and our environment becomes much better. These amazing changes bring us a comfortable and colorful life. As teenagers, we should value the present life and study hard. I believe we will create a more wonderful world in the future. / 学科网（北京）股份有限公司 $ Unit 1 The Changing World 重点单词词汇变形短语句型&写作通用表达 重点单词 rough adj.崎岖的 sandstorm n.沙尘暴 farmland　n.耕地 shortage　n.短缺 【拓展】adj.短的；短缺 short lack　　n.缺乏 bush 　　n.灌木 root　　n.根 soil 　n.土壤 sandy 　　adj.铺满沙子的; 含沙的 【拓展】n. 沙子 sand government　n.政府 support　　n.&v.支持 corn　　n.玉米；谷物 high-tech 　　adj.高科技的 greenhouse　　n.温室 highway　　n.公路 railway 　　n.铁路 attraction 　　n.向往的地方；　吸引力 【拓展】v.吸引；引起.......的好感 attract product　　n.产品 【拓展】v.生产；创造 produce greatly　　adv.大大地；非常 【拓展】adj.巨大的；极大地 great socialist　　adj.社会主义的n.社会主义者 【拓展】adj.社会的 social e-payment 　　n.电子支付 housing　　n.住房；住宅 【拓展】n.房屋 house digital　　adj.电子的 audio　　adj.音频的n.音频 dirt　　n.泥土；尘土 track　　n.小路；轨道 wide 　　adj.宽的；宽阔的 link　　n.交通路线；联系v.连接 port　　n.港口 capital　　n.首都 Kenyan　　n.肯尼亚人adj.肯尼亚的；肯尼亚人的 【拓展】n.肯尼亚 Kenya benefit　　v.得益于；使受益n.优势；益处 convenient　adj.方便的 business 　　n.生意；商业 【拓展】adj.忙的；繁忙的 busy ease 　　n.容易；自在 【拓展】adj.容易的；简单的 easy lorry 　　n. 卡车 manager 　　n.经理 【拓展】v.管理；负责 manage conclusion 　　n.总结 【拓展】v. 得出结论 conclude narrow 　　adj.狭窄的 villager 　　n.村民 lead 　　v.(led /led/,led)带领；过（某种生活）n.领先地位；主角 man-made　adj.人造的；非天然的 miracle　　n. 奇迹 junior　　adj.低年级的；初级的 flat 　　n.公寓 discussion　　n. 讨论 【拓展】v. 讨论 discuss aspect 　　n. 方面 重点短语 1.bring about带来；引起 2.by hand 靠双手 3.be covered with被…覆盖 4.a lack of缺乏… 5.all the time一直 6.since then从那时起 7.quite a lot相当多 8.come back回来 9.a few一些，几个a little少量的 10.tons of成吨的；许多；大量 11.sell sth. to sb.把某物卖给某人 12.all over遍及 13.in one's opinion按某人的意见；据某人看来 14.for ages很久；很长时间 15.have been to去过（某地）have gone to去了（某地） 16.as well as也；还；并且；除…之外（还） 17.in the past 在过去 18.take place发生；举行 19.thousands of成千上万的 hundreds of成百上千的millions of数百万的 20.as a result因此，结果 21.between...and...在…和…之间 22.get to到达arrive in/at 23.with one’s help 在某人的帮助下 24.cut...to... 把......缩短/削减到...... 25.more than超过，多于 26.benefit...from...从......受益 27.be happy with对…感到满意 28.on time准时in time及时 29.with ease轻而易举地 30.far away遥远 31.each other互相 32.hear of/about听说 33.be known/famous as作为…而闻名 be known/famous for因…而闻名 34.be different from和…不同 35.primary school小学 junior high school初中 36.for example例如 37.be far from离…远 38.as well也 39.stay the same保持不变 40.the number of+可数名词复数 …的数量 a number of+可数名词复数 许多… 重点句型 1、It took half a day to reach the town.到达镇上花费半天时间。 2、They used to have to travel far to see a doctor.他们过去得去很远的地方看医生。 3、The hills were covered with sand.山上覆盖着沙子。 4、There used to be sandstorms all the time, and the fields were getting smaller and smaller.过去一直有沙尘暴，而且田地变得越来越小。 5、They began planting it in sandy areas,with the government's support.在政府的支持下，他们开始在沙地里种植这种灌木。 6、I used to grow a few vegetables on a small farm to sell at the local market.过去我在一小块农田里种些蔬菜，拿到当地市场去卖。 7、There, I grow tons of fruit and vegetables,and sell them in large cities.在那里，我种植大量的水果和蔬菜，并销往各大城市。 8、In your opinion, what has changed the most in your hometown in the last 10years?在你看来，过去10年里你的家乡变化最大的是什么？ 9、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专区，还有一个很大的儿童书籍区。 10、This made it difficult for locals to bring products to the market or to develop industry.这使得当地人很难把产11、Now great changes have taken place.现在已经发生了巨大的变化。品运到市场，也很难发展工业。 12、The government has built thousands of kilometres of highways, railways, and wide roads.政府修建了数千千米的公路、铁路和宽阔的道路。 13、As a result, the lives of local people have improved. 结果，当地人的生活得到了改善。 14、In 2017, the new 480-kilometre Mombasa-Nairobi railway was opened. 2017年，全新的480千米蒙巴萨-内罗毕铁路正式通车。 15、I'm very happy with the new railway built by our Chinese friends.我对中国朋友修建的这条新铁路感到非常满意。 16、I am able to get to places on time and make business deals with ease.我能准时到达各地，轻而易举地谈成生意。 17、the number of people who use the new train every year每年使用新火车的人数 18、Have you seen or heard of any similar changes in the world over the last several years??在过去几年里，你在世界上见过或听说过类似的变化吗？ 19、They feed on corn,vegetables,and insects,.它们以玉米、蔬菜和昆虫为食。 20、Today.Saihanba is known as"the green miracle”、如今，塞罕坝被誉为“绿色奇迹”。 单元写作通用表达&范文背诵 【写作话题】 本单元的话题是“变化的世界”，写作时应围绕着对比人或事物的过去与现在展开。文章通常采用“总一分一总”的结构，开头总领全文，点明人和事物发生了巨大变化；中间部分可从生活环境、交通方式、日常生活等角度分层展开，通过今昔对照凸显变化的具体方面；结尾则结合自己的情况，阐述能采取的行动，或表达对未来的美好展望。描写过去的状态与事件时使用一般过去时，描写当下的情况或过去变化对现在产生的影响时，用一般现在时或现在完成时。人称以第一、三人称为主。 [教材典句] ①Now great changes have taken place. ②The road used to be narrow and dirty. ③This made it difficult for locals to bring products to the market or to develop industry. ④There used to be sandstorms all the time,and the fields were getting smaller and smaller. 【写作目标】 1. 主题目标：围绕今昔对比，描写社会、生活、交通、环境等方面的过去与现在的不同，突出世界/生活发生的巨大改变。 2. 结构目标：严格使用总—分—总经典考场结构，逻辑清晰、层次分明，贴合中考评分标准。 3. 内容目标：从交通出行、日常生活、居住环境三个核心角度分层描写，运用used to do 今昔对比句型，内容充实、紧扣话题。 4. 情感目标：通过对比变化，抒发对美好生活的珍惜，结合青少年身份写出个人行动，展望未来发展，升华文章主旨。 【写作步骤】 步骤一：开头【总领全文·点题】 写作任务：开门见山，直接点明近些年我们的生活、世界发生了翻天覆地的变化，引出下文对比。 万能模板句： Great changes have taken place in our life and the world in recent years. Our world is changing fast, and our daily life is totally different from the past. 步骤二：中间【分层分述·今昔对比 核心段落】 写作任务：分三个角度分层对比，先用 In the past 描述过去落后、不便的状态，再用 Now / At present 描述现在的便利、美好，形成鲜明对比。 分层写作角度+模板句型： 1. 交通出行对比 In the past, people used to go out on foot or by bike. It was slow and tiring. However, now we have high-speed trains, subways and private cars, which make our trips fast and convenient. 2. 日常生活对比 People used to communicate by writing letters and had few ways to relax. Today, we can chat online, shop on the Internet and enjoy all kinds of colorful activities easily. 3. 居住环境对比 Years ago, living conditions were poor and the environment was polluted sometimes. At present, more tall and bright buildings appear, and our living environment becomes cleaner and more beautiful. 步骤三：结尾【总结升华·行动+展望】 写作任务：总结变化带来的美好生活，结合青少年身份写自身做法（努力学习、珍惜生活），最后展望未来、升华主题。 万能模板句： These great changes bring us a comfortable and happy life. As teenagers, we should study hard and cherish the present life. I believe our world will become much more wonderful with our hard work in the future. 【词汇积累】 单词 ①change v.& n. 改变；变化 ②development n. 发展 ③improve v. 改善；提高 ④progress n. 进步 ⑤society n. 社会 ⑥transport n. 交通 ⑦condition n. 条件；状况 ⑧technology n. 科技 ⑨convenient adj. 方便的 ⑩modern adj. 现代的 ⑪past n. 过去 adj. 过去的 ⑫present n. 现在 adj. 当前的 ⑬rapid adj. 迅速的 ⑭communication n. 交流；通讯 ⑮online adj. 线上的 ⑯environment n. 环境 ⑰possible adj. 可能的 ⑱realize v. 意识到；实现 ⑲memory n. 记忆 ⑳future n. 未来 短语 ①in the past 在过去 ②at present 目前；现在 ③take place 发生 ④great changes 巨大变化 ⑤because of 由于 ⑥with the development of 随着…… 的发展 ⑦used to do 过去常常做 ⑧in one’s daily life 在某人日常生活中 ⑨more and more 越来越 ⑩instead of 代替；而不是 ⑪keep up with 跟上 ⑫play an important role in 在…… 起重要作用 ⑬make a difference 产生影响 ⑭look forward to 期待 ⑮as time goes by 随着时间流逝 【句式积累】 开头句（总领全文，点明变化） ①Great changes have taken place in our world during these years. 这些年，我们的世界发生了巨大的变化。 ②Our world is changing so fast that we can feel the differences everywhere. 我们的世界变化如此之快，我们处处都能感受到这些不同。 ③Compared with the past, our society has experienced great progress. 和过去相比，我们的社会取得了巨大进步。 ④Times are changing, and many things around us are quite different from what they used to be. 时代在改变，我们身边很多事物和过去大不相同。 ⑤It’s amazing to see how much our world has changed over the years. 看到这些年来世界发生如此大的改变令人惊叹。 中间句（今昔对比：环境、交通、日常生活） ①People used to go out on foot or by bike, but now more people choose high‑speed trains. 人们过去步行或骑车出行，但现在更多人选择高铁。 ②In the old days, people mainly communicated by writing letters while they chat online at present. 在过去人们主要写信沟通，然而现在他们网上聊天。 ③The living conditions were poor in the past, but most families live much more comfortably today. 过去生活条件艰苦，但如今大多数家庭生活舒适得多。 ④There used to be fewer tall buildings, and modern high‑rises can be seen everywhere now. 过去高楼很少，如今现代化高楼随处可见。 ⑤With the development of technology, our daily life becomes far more convenient than before. 随着科技发展，我们的日常生活变得比以前方便得多。 ⑥Years ago, people hardly had colourful fun activities, but now they have many ways to relax themselves. 多年前人们几乎没有丰富的娱乐活动，但现在有很多放松的方式。 ⑦In the past, it took people a long time to travel far away, but the traffic saves us plenty of time now. 过去远行要花费很长时间，如今交通帮我们节约大量时间。 ⑧Some places used to be polluted, yet people are trying their best to make the environment better. 一些地方过去污染严重，但现在人们尽全力改善环境。 ⑨Children used to play outdoors most of the time, while many kids enjoy digital activities nowadays. 过去孩子大多在户外玩耍，然而如今很多孩子喜爱数字活动。 ⑩More people can get good medical care now, which was impossible many years ago. 现在更多人可以获得良好医疗，这在很多年前是不可能的。 结尾句（谈行动、展望未来） ①As teenagers, we should study hard so that we can make our world even better. 作为青少年，我们应当努力学习，让我们的世界变得更加美好。 ②I believe our world will become more beautiful if everyone makes a small difference. 我相信如果每个人贡献一点力量，世界将会变得更加美好。 ③Though we enjoy the convenient life now, we still need to keep working for a brighter future. 虽然我们享受便利生活，但我们仍要为更加光明的未来继续奋斗。 ④I look forward to seeing more wonderful changes in our world in the coming days. 我期待在未来看到世界更多美好的改变。 ⑤It is our duty to value the present and try our best to create a better tomorrow. 珍惜当下，尽全力创造更美好的明天是我们的责任。 【俗语谚语】 ①Time changes, and so do people. 时代变迁，人亦随之改变。 ②Progress is the activity of today and the assurance of tomorrow. 进步是今日的行动，明日的保障。 ③The world is constantly changing. Nothing stays the same forever. 世界不断变化，没有什么永恒不变。 ④Every new day brings new changes. 每一天都会带来新的改变。 ⑤If you want the future different, act in the present. 想要不一样的未来，就要在当下行动。 【范文欣赏】 Great Changes in Our World Great changes have taken place in our world over the past few years. Our society is developing rapidly, and people’s daily life is quite different from it used to be. In the past, people lived a simple and hard life. They mainly went out on foot or by bike. People communicated with others by writing letters, and there were few entertainment ways. However, things are totally different at present. With the development of modern technology, convenient traffic like high-speed trains makes our travel easier. We can chat online and get information in seconds. Besides, people’s living conditions have improved greatly and our environment becomes much better. These amazing changes bring us a comfortable and colorful life. As teenagers, we should value the present life and study hard. I believe we will create a more wonderful world in the future. / 学科网（北京）股份有限公司 $