Unit 1 The Changing World课件-2026-2027学年九年级英语上册单元核心知识精讲精练（新教材人教版）

该初中英语单元复习课件系统梳理了“ The Changing World”单元的词汇、短语、句型、语法及写作核心知识，通过词缀法（如sand+y→sandy）、短语归纳（如bring about）、句型示例（如现在完成时对比句）构建词汇-短语-句型网络，结合语法中现在完成时与一般过去时的对比及非延续性动词转换规则，帮助学生形成完整的语言知识体系。 其亮点在于采用“词汇拓展-语法对比-写作实践”的三维复习策略，例如词汇拓展通过词缀规律培养语言能力，语法中动词转换练习（如borrow→keep）提升思维品质，写作框架（今昔对比结构）和分层训练（从基础填空到倡议书写作）发展学习能力。这种设计既巩固学生知识，又为教师提供精准复习方向，助力高效教学。

Unit 7 Be wise with money Unit 1 The Changing World 考点串讲 人教版·九年级上册 1 词 汇 （1）名词 1. 沙尘暴   2. 耕地 3. 短缺 4. 缺乏 5. 灌木 6. 根 7. 土壤 8. 政府 9. 玉米；谷物 10. 温室 11. 公路  12. 铁路 13. 向往的地方；吸引力   14. 产品  15. 电子支付 16. 住房；住宅   17. 当然 18. 泥土；尘土 19. 小路；轨道 20. 港口城市；港口 sandstorm farmland   shortage  lack   bush    root  soil   government  corn    greenhouse   highway   railway    attraction  product  e-payment housing  course    dirt    track port    词 汇 21. 首都    22. 生意；商业 23. 容易；自在   24. 卡车  25. 经理 26. 总结   27. 铁路 28. 村民 29. 奇迹  30. 公寓 31. 讨论   32. 方面  （2）形容词 33. 崎岖的  34. 铺满沙子的；含沙的  35. 高科技的 36. 电子的 37. 宽的；宽阔的   38. 方便的  39. 狭窄的  40. 人造的；非天然的 capital business    ease  lorry   manager    conclusion  rail    villager    miracle   flat    discussion  aspect   rough   sandy   high-tech digital    wide  convenient   narrow   man-made  词 汇 41. 低年级的；初级的   （3）副词 44. 大大地；非常   （4）多重词性词 45. n.& v.支持 46. adj.社会主义的n.社会主义者   47. adj.音频的n.音频  48. n.交通路线；联系v.连接   49. v.完成；结束adj.完全的；彻底的   50. n.肯尼亚人adj.肯尼亚的；肯尼亚人的 51. n.& v.评论；批评  52. v.带领；过（某种生活）n.领先地位；主角 junior  greatly  support    socialist   audio   link  complete   Kenyan    comment   lead  词汇拓展 1. short (adj. 短的；短缺) + -age（名词后缀）→ (n. 短缺) 2. sand (n. 沙子) + -y（形容词后缀）→ (adj. 铺满沙子的；含沙的) 3. attract (v. 吸引；引起……的好感) + -ion（名词后缀）→ (n. 向往的地方；吸引力) 4. great (adj. 巨大的；极大的) + -ly（副词后缀）→ (adv. 大大地；非常) 5. social (adj. 社会的) + -ist（形容词/名词后缀）→ (adj. 社会主义的 / n. 社会主义者) shortage sandy attraction greatly socialist 词汇拓展 6. e-（前缀，电子的）+ pay (v. 付费) + -ment（名词后缀）→ (n. 电子支付) 7. Kenya (n. 肯尼亚) + -(a)n（名词/形容词后缀）→ (n. 肯尼亚人 / adj. 肯尼亚的；肯尼亚人的) 8. manage (v. 管理，负责) + -(e)r（名词后缀）→ (n. 经理) 9. conclude (v. 得出结论) 去de + -sion（名词后缀）→ (n. 总结) 10. lead (v. 带领；过某种生活) → 过去式/过去分词 11. discuss (v. 讨论) + -ion（名词后缀）→ (n. 讨论) e-payment Kenyan manager conclusion led discussion 短 语 1. 带来；引起 2. 被……覆盖 3. 缺乏；匮乏；短缺 4. （在某段时间内）一直，始终  5. 依某人之见；在某人看来  6. 注意；专心；留心 7. 从……中获益良多 8. 对……感到满意 9. 轻而易举地 10. 奥林匹克运动会 11. 决定做某事 12. 被认为是；作为……而出名 13. 既然；由于 14. 在……上变得更加自信 bring about be covered with lack of  all the time  in one’s opinion pay attention to...  benefit a lot from... be happy with with ease  the Olympics be determined to do sth  be known as  now that become more confident in 句 子 1. ——在过去的20年里，你家乡的生活发生了怎样的变化？——噢，它变化很大！ —How in your hometown over the last 20 years?—Oh, it has changed quite a lot!2. 许多年轻人过去在大城市工作。现在，他们中更多的人回到这里生活和工作。 Many young people  in big cities. Now, more of them  live and work here. 3. 我们的村庄已经成了一个旅游胜地。我们现在可以向游客出售本地产品。 Our village  . We can now sell local products to . 4. 太棒了！你们正在一起建设一个社会主义新村庄。 Wonderful! you are building a new village. 5. 这是我参观过的最高科技的图书馆。 It’s the most   I have ever visited. has life changed used to work have come back to has become a tourist attraction tourists Together socialist high-tech library 句 子 6. 这使得当地人很难将产品推向市场或发展工业。 This to the market or to develop industry. 7. 过去需要一天的旅程现在只需要几个小时。 A journey that  now  . 8. 然而，在中国帮助下修建的新铁路已经将旅客在蒙巴萨(Mombasa)和内罗毕(Nairobi)之间的出行时间缩短至约五到六个小时。 However, the new railway,  , has already the travel time between Mombasa and Nairobi to about five to six hours for passengers. 9. 虽然中国和肯尼亚(Kenya)相距遥远，但这条铁路展示了不同国家可以共同努力建设一个更美好的世界。 China and Kenya are , the railway shows how different countries can work together to build a better world. 10. 这座桥方便了村民过河进城。 The bridge  the villagers to travel across the river to the city. made it difficult for locals to bring products  used to take a day takes only a few hours built with China’s help cut Although  far away from each other made it convenient for 句 子 11. 这是一个只在网上销售的数字产品。This is a   that only online. 12. 今天，塞罕坝(Saihanba)被誉为“绿色奇迹”。这是艰苦工作和人们共同努力的结果。 Today, Saihanba   “the green miracle”. This is  and people working together. 13. 我学习的方式也不一样了。我在学习上变得更加自信，并且经常参加小组讨论。 The way I study is also different. I have  in my studies and often group discussions. 14. 我的生活在许多方面都发生了变化，但有一点是不变的：我的家人分享的爱和幸福的感觉。My life has changed in many ways, but one thing stays the same: . 15. 改变是创造更加美好的未来的机会。Change is .  digital product sells is known as the result of hard work  become more confident attend the feeling of love and happiness shared by my family the opportunity to create a better future Unit 7 Be wise with money Unit 1 The Changing World 知识点串讲 人教版·九年级上册 11 知识点 考点1 The hills were covered with sand. (教材P2 1c) be covered with 被……覆盖 主语通常为物，with后接具体的覆盖物。 After the heavy snow, the whole mountain was covered with white snow.大雪过后，整座山都被白雪覆盖着。 When spring comes, the garden is covered with green grass and colourful flowers. 春天来临时，花园里长满了青草和五颜六色的花。 用法拓展 cover...with sth. 用某物盖住……，主语通常为人。 Mum covers the table with a clean cloth.妈妈用一块干净的布盖住桌子。 知识点 考点2 water shortage    lack of technology (教材P3 2a) shortage /ˈʃɔːtɪdʒ/ n. 短缺 lack /læk/ n. 缺乏 两者为同义词，均可作可数名词和不可数名词，常用于“There is no shortage/lack of...”结构，表示“不缺……”。 There is no shortage/lack of delicious food in this small town.这个小镇不缺美味的食物。 The company is facing a shortage/lack of skilled workers this year.这家公司今年面临技术工人短缺的问题。 用法拓展 lack v. 没有；缺乏 He lacks courage to speak in public.他缺乏在公共场合说话的勇气。 知识点 考点3 They began planting it in sandy areas, with the government’s support. (教材P3 2c) sandy /ˈsændi/ adj. 铺满沙子的；含沙的 由“sand (n. 沙子) + -y (形容词后缀)”构成。 We walked on the sandy beach for an hour yesterday.昨天我们在沙滩上走了一个小时。 The soil in my garden is very sandy.我花园里的土壤含沙量很高。 词缀拓展 -y表示“充满……的；有……特性的”，通常加在名词后构成形容词。 dust n.灰尘 — dusty adj. 布满灰尘的 hair n.毛发 — hairy adj.毛茸茸的 知识点 考点4 They began planting it in sandy areas, with the government’s support. (教材P3 2c) support /səˈpɔːt/ n. & v. 支持 （1）[及物动词] support sb. in (doing) sth. 在（做）某事方面支持某人 You have to trust and support each other during matches.在比赛期间，你们必须互相信任和支持。 We’ll support you in making your own decision.我们将支持你自己做决定。 （2） [不可数名词] with sb.’s support = with the support of sb. 在某人的支持下 With my teacher’s support, I finished the task successfully.在老师的支持下，我成功完成了任务。 My parents always give me enough support during my growth.在我成长的过程中，我的父母总是给我足够的支持。 词义拓展 养活He works hard to support his family. 他努力工作以养活自己的家庭。 证实The facts support our conclusion. 这些事实证实了我们的结论。 知识点 考点5 Our village has become a tourist attraction. (教材P4 3a) attraction /əˈtrækʃ(ə)n/ n. 向往的地方；吸引力 tourist attraction 旅游景点；旅游胜地 The Summer Palace is a popular tourist attraction.颐和园是一个受欢迎的旅游景点。 I can’t see the attraction of sitting on a beach all day.我看不出整天坐在海滩上有什么乐趣。 词形拓展 attract v. 吸引 attraction n. 向往的地方；吸引力 attractive adj. 有吸引力的 Our school’s reading comer is really attractive. It attracts students during the break, and it has become a popular attraction. 我们学校的读书角特别有吸引力。它在课间吸引学生前去，已经成为一个受欢迎的地方。 知识点 考点6 We can now sell local products to tourists. (教材P4 3a) product /ˈprɒdʌkt/ n. 产品 produce v. 生产-product n. 产品-production n. 产量；生产 The factory produces millions of cameras every year. The products are up to standard and popular. Till now, the production of this factory has reached a record high. 这家工厂每年生产数百万部相机，产品合格并且很受欢迎。截至目前，该厂产量已经达到了历来的最高记录。 知识点 考点7 There are sections with books about science and Chinese culture, as well as a huge section with children’s books. (教材P5 4b) as well as 除……之外，也，还 【辨】 as well as与as well 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 知识点 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。 用法拓展 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。 知识点 考点8 This made it difficult for locals to bring products to the market or to develop industry. (教材P5 4c) make it + adj. + for sb. + to do sth. 使做某事对某人来说 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。 有此用法的常见动词还有find、 think、consider等。 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。 知识点 考点9 The government has built thousands of kilometres of highways, railways, and wide roads. (教材P5 4c) wide /wide/ adj. 宽的；宽阔的 反义词：narrow 狭窄的 知识点 考点10 Before then, the only transport links between Mombasa, Kenya’s main port, and Nairobi, Kenya’s capital, were rough roads and an old railway line completed in 1901. (教材P6 1b) link /lɪŋk/ n. 交通路线；联系v. 连接 ① n. 交通路线 The new subway link makes it easy to go to the airport.这条新地铁线使去机场很便捷。 ② n. 联系 There is a close link between hard work and success.努力和成功之间有紧密的联系 知识点 ③ v. 连接 同义词为connect，指把物体、地方等连接起来，或把两个事物、因素等联系起来 link... (together) 把……连接/联系起来 link... with/to/and... 把……和……连接/联系起来 This railway links these four cities together.这条铁路把这四座城市连接了起来。 We link thunder with lightning because they usually happen together.我们把雷声和闪电联系起来，因为它们通常同时发生。 知识点 考点11 Local Kenyans have benefited a lot from the new railway. (教材P6 1b) benefit /ˈbenɪfɪt/ v. 得益于；使受益n. 优势；益处 ① v. 得益于；使受益 The new plan may benefit many students.这项新计划将使很多学生受益。 In fact, I have benefited a lot from volunteering.事实上，我从志愿工作中获益很多。 ② n. 优势；益处 I’ve realized the benefit of sports.我已经意识到了运动的益处。 知识点 考点12 It is very convenient and doesn’t cost much money. (教材P6 1b) convenient /kənˈviːniənt/ adj. 方便的 比较级：more convenient最高级：most convenient It is very convenient to pay by WeChat.用微信付款非常方便。 AI can make life more convenient in many ways.人工智能可以在许多方面使生活更方便。 词形拓展 inconvenient adj. 不方便的 convenience n. 方便（不可数） 知识点 考点13 I am able to get to places on time and make business deals with ease. (教材P6 1b) business /ˈbɪznəs/ n. 生意；商业 [不可数名词] do business with 和……做生意   out of business 歇业；停业 It’s a pleasure to do business with you.和你做生意很愉快。 This shop has gone out of business for two months.这家店已经停业两个月了。 知识点 词义拓展business的其他用法 知识点 考点14 ... said a supermarket manager. (教材P6 1b) manager /ˈmænɪdʒə(r)/ n. 经理 由“manage (v. 负责，管理) 去 e + -er (名词后缀)”构成。 Mr White is the manager of the company.怀特先生是这家公司的经理。 词形拓展 manage v. 管理 management n. 管理 manager n. 经理 My mother is a manager. She is familiar with management skills, so she manages the department well. 我妈妈是一名经理。她熟悉管理技巧，因此她把部门管理得很好。 知识点 考点15... Wang Shanghai led a group of 369 people who were determined to make the environment of Saihanba better. (教材P8 2c) lead /liːd/ v. 带领；过（某种生活）n. 领先地位；主角 过去式、过去分词：led 知识点 词义拓展 作动词的其他含义： (1) 导致（后果）  lead to 导致 Lack of sleep can lead to tiredness during the day. 睡眠不足会导致白天疲惫。 (2) 通往；通向 The path led down to a small lake. 这条路通向一个小湖。 知识点 考点16 I have become more confident in my studies and often attend group discussions. (教材P9 3a) discussion /dɪˈskʌʃn/ n. 讨论 由“discuss (v. 讨论) + ion (名词后缀)”构成，其常用结构有： have a discussion with sb. 和某人讨论 have a discussion about/on sth. 就某事展开讨论 under discussion 在讨论中 Could I have a discussion with my classmates first?我能先和我的同班同学讨论一下吗？ We had a discussion about the basketball game yesterday.昨天我们就这场篮球比赛展开了讨论。 The plan is still under discussion.计划还在讨论中。 知识点 词缀拓展 -ion表示“……行为；……状态”，常加在动词后构成名词。 collect v. 收集 → collection n. 收集 protect v. 保护 → protection n. 保护 Unit 7 Be wise with money Unit 1 The Changing World 语法考点 人教版·九年级上册 33 语 法 比较现在完成时和一般过去时 知识点1现在完成时和一般过去时的区别 时态 区别 例句 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。标志词：already、yet、just、never、recently、so far、for+一段时间、since+时间点等。 My mother has been a doctor for five years.我妈妈已经当医生五年了。   一般 过去时 表示过去某个时间发生的事情或存在的状态，侧重陈述过去发生的事情或状态。标志词:yesterday、the day before yesterday、last week (night、month、year）、in 2020、 two years ago等。 My mother was a doctor five years ago.我妈妈五年前是医生。 语 法 知识点2非延续性动词与延续性动词之间的转换 （1）在现在完成时的句子中，表示持续的动作或状态时，常用延续性动词与表示时间段的时间状语连用。 I have played the guitar for six years.我弹吉他六年了。 （2）与表示一段时间的时间状语连用时，应将非延续性动词转换为延续性动词或表示状态的短语等。 I borrowed this magazine three months ago.我三个月前借了这本杂志。 →I have kept this magazine for three months.这本杂志我已经借来三个月了。 语 法 （3）常见的非延续性动词转换为延续性动词的情况: ① 用与其意义相对应的“be+形容词/副词/介词/名词等”结构。 非延续性动词 结构 leave begin/start join die open be away (from) be on be in/a member (of) be dead be open 语 法 I joined the club two years ago. 我两年前加入的这个俱乐部。 →I the club for two years. 我加入这个俱乐部两年了。 have been in/a member of ②用与其意义相对应的延续性动词。 非延续性动词 延续性动词 buy borrow put on have keep wear 语 法 I bought this pop-up book about the Palace Museum one week ago. 我一周前买了这本关于故宫博物院的立体书。 →I this pop-up book about the Palace Museum for one week. 我买来这本关于故宫博物院的立体书已经一周了。 have had Unit 7 Be wise with money Unit 1 The Changing World 写作串讲 人教版·九年级上册 39 写 作 （1）写作任务 假设你是一名初中生，和小学时期相比，你的生活、学习、出行等方面都发生了很多变化。请以《Changes in My Life》为题，写一篇短文介绍这些改变，并说说始终不变的东西。词数80-120词。 写 作 （2）审题要点 （1）主题：个人成长变化——今昔对比，描述生活、学习、出行等方面的改变 （2）文体：记叙文（兼有今昔对比的说明性叙述） （3）时态：一般过去时（描述小学往事）+ 现在完成时（表达已发生的变化，have/has + done） （4）要点：① 学习科目/方式的变化；② 出行/环境的变化；③ 不变的：兴趣、友谊等 （5）亮点提示：完成时标志词：since, in the past...years, so far；对比词：used to, compared with, however 写作框架 开头 引入：时间飞逝，生活发生了许多变化 Time flies; many changes have taken place in my life 点明：自从进入初中，生活改变显著 Since I entered junior high school, my life has changed a great deal 正文 变化一：学习——科目增多，方式改变（数字工具/网络资源）used to have only...; now have more subjects; have started using digital tools 变化二：出行——以前走窄土路，现在骑车走宽阔平整的道路used to walk along narrow dirt roads; now ride a bike along wide, smooth roads 不变之处：对读书的热爱、与好友的友谊始终如一 my love of reading / friendship with best friends has never changed 结尾 感悟：变化让我意识到世界发展之快，为成长感到骄傲have made me realize how fast... / am proud of my growth 展望：期待未来更多美好变化 look forward to more positive changes in the future 写 作 （4）句式练习 第一段（开头）：引入变化，点明主题 1.时光飞逝，自从我进入初中，我的生活发生了很大的变化。 Time flies. Since I entered junior high school, my life has changed a great deal. 2.在过去几年里，我们的家乡发生了翻天覆地的变化。 In the past few years, great changes have taken place in our hometown. 3.众所周知，科技的发展带来了我们生活方式的巨大变革。 As we all know, the development of technology has brought about great changes in our way of life. 4.我想和大家分享一下我生活中发生的那些令人难忘的变化。 I would like to share with you some unforgettable changes that have taken place in my life. 写 作 第二段（中间）：具体描述变化（过去时 vs 现在完成时） 1.以前，我每天步行上学，走的是狭窄的土路；现在，我骑车走宽阔平整的道路，节省了很多时间。I used to walk to school along narrow dirt roads every day. Now I ride a bike along a wide, smooth road, which saves a lot of time. 2.过去，我的家乡到处都是农田，几乎没有楼房；如今，许多现代化的建筑已经在这里拔地而起。 My hometown used to be covered with farmland with hardly any buildings. Now many modern buildings have been built here. 3.高科技的发展大大改变了人们的学习和生活方式，电子支付和在线学习已经变得非常普遍。 The development of high technology has greatly changed people's ways of learning and living. E-payment and online learning have become very common. 4.到目前为止，我们县已经建成了好几条高速公路，把我们的村庄与城市紧密相连。 So far, several highways have been built in our county, linking our village closely with the city. 写 作 第三段（结尾）：点明不变之处，升华感悟，展望未来 1.尽管很多事情都变了，我对读书的热爱和与好友之间的友谊却从未改变。 Although many things have changed, my love of reading and my friendship with my best friends have never changed. 2.这些变化让我意识到，我们的世界正在以惊人的速度发展。 These changes have made me realize that our world is developing at an amazing speed. 3.我为自己的成长感到骄傲，也为家乡日新月异的变化感到自豪。 I am proud of my own growth and also proud of the rapid changes in my hometown. 4.我期待在未来的日子里，见证更多美好的变化，也期待自己成长为一个更好的人。 I look forward to witnessing more wonderful changes in the future and growing into a better version of myself. 写 作 Changes in My Life Time flies. Since I entered junior high school, my life has changed a great deal compared with my primary school days. In terms of study, I used to have only three main subjects: Chinese, Maths, and English. Now I have more subjects, such as Physics, Chemistry, and History. I have also started using digital tools and online resources to study more efficiently. As for transportation, I used to walk along narrow dirt roads every day. Now I ride a bike along a wide, smooth road, which saves a lot of time and energy.     练 习   However, not everything has changed. My love of reading and my friendship with my best friends have always remained the same. These changes have made me realize how rapidly our world is developing. I am proud of my growth, and I look forward to even more positive changes in the future. Unit 7 Be wise with money Unit 1 The Changing World 综合训练 人教版·九年级上册 48 练 习 根据句意及汉语提示，用单词或短语的正确形式填空，注意时态、主谓一致、单复数变化 1.China has made great __________ (进步) in medical care in recent years. 2.The small village has __________ (发展) into a modern town already. 3.It is __________ (便利的) for us to go shopping online now. 4.Many __________ (医疗的) teams went to help people in need last year. 5.People’s living conditions have __________ (改善) a lot in the past few years. 6.We should (远离) bad habits and keep healthy. 7.The school __________ (提供) free books for all students every term. progress   developed   convenient   medical   improved   stay away from / keep away from provides 练 习 语法填空 阅读短文，用括号内所给单词的适当形式填空 Our hometown 1.________ (change) greatly in the past thirty years. In the past, people 2.________ (live) a poor life. Few children could get good 3.________ (educate). 4.________ (recent), with the fast 5.________ (develop) of our country, everything is different. Now many 6.________ (volunteer) come to help us. Every kid 7.________ (have) a chance 8.________ (study) in new schools. We can behave 9.________ (proper) and take part in social activities. I 10.________ (true) love my lovely hometown. has changed lived   education   Recently   development  volunteers   has   to study properly   truly 练 习 将短暂动词改为延续性动词 例：He bought the book two weeks ago. → He has had the book for two weeks. 1. The movie started an hour ago. → The movie ________ ________ for an hour. 2. They arrived in Beijing last Monday. → They ________ ________ in Beijing since last Monday. 3. I borrowed this bike yesterday. → I ________ ________ this bike since yesterday. 4. She left home at 7:00. → She ________ ________ ________ from home for two hours. 5. He joined the army in 2020. → He ________ ________ in the army since 2020. 6. The meeting began at 9 am. → The meeting ________ ________ ________ for 30 minutes. 7. I got this computer three years ago. → I ________ ________ this computer for three years. 8. They got married last year. → They ________ ________ ________ for one year. has been on have been have had has been away has been has been on have had have been married 练 习 学校英文报刊举办主题活动 Our Changing Hometown，请你以学生会的名义，面向全校学生写一篇环保倡议书。 写作要点： 1.家乡发展迅速，但环境持续遭到破坏； 2.提出三条切实可行的日常环保举措； 3.呼吁全体同学从小事做起，守护家乡。 词数要求：100 词以上，规范倡议书格式 练 习 Let’s Protect Our Changing Hometown Dear schoolmates, Our hometown has developed rapidly in the past ten years. New roads, tall buildings and large shopping malls have appeared everywhere, and people’s living standards have improved a lot. However, the environment around us is not as good as it used to be. There used to be clear rivers full of fish and green trees along streets, but now we can see rubbish everywhere and the river water becomes dark and polluted. 练 习 To fix this problem and protect our hometown, we students can take simple actions in daily life. First, we should walk or ride bikes instead of asking parents to drive private cars when we go out. Second, we must save water and electricity at home and school, and never waste any natural resources. Third, we can take part in tree-planting activities on weekends to add more green to our city. Small actions can create huge changes. Every student has the duty to protect our hometown. Let’s take action right now to keep our lovely hometown clean and beautiful forever! The Student Union Thank you! 55 $