UNIT 8 Section Ⅰ TOPIC TALK-【优学精讲】2025-2026学年高中英语必修第三册教用课件（北师大版）

该高中英语课件围绕“绿色生活与环境保护”主题，整合听说读写技能训练，涵盖核心词汇（如desert, solution）、重点句型（动名词作主语）及检测练习。课堂通过听说课前词汇清障（如environmental problems）和教材听力材料导入，搭建从词汇输入到听力理解再到表达输出的学习支架，衔接知识学习与能力检测。 其亮点在于以情境化任务（如环保讲座对话、海草水杯交流）提升语言能力，通过环保主题渗透文化意识（人类命运共同体），听力阅读中的推理判断问题培养思维品质。采用任务型教学，学生能综合提升语言运用能力，教师可直接使用结构化资源提高教学效率。

Section Ⅰ　TOPIC TALK 目 录 01 话题听说·勤操练 02 核心知识·巧突破 03 课时检测·提能力 话题听说·勤操练 目 录 听说课前清障 1. 环境问题 ⁠ 2. 例如 ⁠ 3. 水污染 ⁠ 4. 以……结束 ⁠ 5. 过绿色生活 ⁠ 6. live in harmony with ⁠ 7. be close to ⁠ environmental problems　 for instance/for example　 water pollution　 end with　 lead a green life　 与……和谐相处　 接近，靠近　 目 录 英语·必修第三册（BSD） 8. tackle the problems ⁠ 9. reduce pollution ⁠ 10. fight against ... ⁠ 解决这些问题　 减少污染　 与……斗争　 目 录 英语·必修第三册（BSD） 话题听力提能 Ⅰ.听教材听力8.1，回答第1至3题。 1. What does the first section of the exhibition introduce？（　　） A. Different solutions for pollution. B. The reasons for pollution. C. Different types of pollution. √ 目 录 英语·必修第三册（BSD） 2. What are the main sources of pollution according to the second section？（　　） A. Animals. B. Human activities. C. Natural disasters. √ 目 录 英语·必修第三册（BSD） 3. What is one good way to reduce pollution according to the third section？（　　） A. Drive more cars. B. Use more plastic bags. C. Plant more trees. √ 目 录 英语·必修第三册（BSD） Ⅱ.再听教材听力8.1，根据所听内容填空。 1. Dear all， welcome to our exhibition on green living.You may wonder by green living.I’m sure you will understand this after the exhibition.There are ⁠ altogether. what we mean　 concept　 four sections　 2. We all know that there are types of pollution around us， which may cause different kinds of ， for instance， water pollution， ， ocean pollution， soil pollution and noise pollution.This section will show how pollution affects .The second section explains that cause different types of pollution. various　 environmental problems　 air pollution　 our environment and our health the reasons　 目 录 英语·必修第三册（BSD） 3. The third section presents the that have been taken to ， we can help the environment. 4. Finally， the exhibition ends with about what we believe we should be doing to lead a green life.To me， green living is about living ⁠. solutions　 tackle the problems　 detailing ways　 a summary　 personally　 in harmony with nature　 目 录 英语·必修第三册（BSD） Ⅲ.听教材听力8.2，回答第1至3题。 1. What does the woman prefer to have instead of living in a flat in the city？（　　） A. A house with a garden. B. A house with a swimming pool. C. A flat with a rooftop terrace. √ 目 录 英语·必修第三册（BSD） 2. What does the man do to create green spaces in his flat？（　　） A. He plants flowers and vegetables outside his window. B. He buys artificial plants. C. He paints his walls green. √ 3. What is the main benefit of green spaces according to the conversation？（　　） A. They help improve the view. B. They help the environment. C. They increase property value. √ 目 录 英语·必修第三册（BSD） Ⅳ.再听教材听力8.2，根据所听内容填空。 1. What a beautiful ！ Actually， I live in a flat， but I can help the by creating more ⁠. 2. Yes， absolutely. are very important in our ⁠ like global warming. garden　 environment　 green spaces　 Green spaces　 fight against problems 目 录 英语·必修第三册（BSD） 话题表达实战 　　情境一：布朗博士给同学们作了一个关于城市空气污染——雾 霾的讲座。同学们积极参与，提出了一些问题…… 　　阅读下面对话， 根据语境选择最佳选项。 Dr.Brown：Good evening， everyone.1.（　　） I’m Dr. Brown and I’m going to talk about air pollution in cities — what we all know as “smog”.Please feel free to stop me if you have any questions.So， first of all， a bit of history.The term “smog” was first used in the 1800s in cities that had problems with smoke and fog. 目 录 英语·必修第三册（BSD） Student A：Sorry for interrupting， but I believe it was in the 1900s. Dr.Brown：2.（　　）You are right.It was in the 1900s.Thank you.London was one of the cities where smog caused big problems.In December 1952， it suffered from “The Great Smog”.It was a very cold winter， so a lot of coal was burned at home and in the factories.The problem was that there was no wind， so thick smog covered the city.Nowadays ... Student B：Excuse me， but can I just ask — did the smog cause any deaths？ 目 录 英语·必修第三册（BSD） Dr.Brown：3.（　　）According to research， about 4，000 people are known to have died as a result of the smog， but that number could be much higher.It was terrible！Nowadays， smog still exists， but is produced by chemicals coming from traffic and factories.However， governments are taking measures to reduce smog as much as possible.Now， let’s look at what smog does to our health ... Student A：If I could just stop you again ...4.（　　） 目 录 英语·必修第三册（BSD） Dr.Brown：Well， for example， factories must follow rules about what chemicals they use.In some cities， when there’s smog， people have to pay to drive in the centre.5.（　　） A. I’m afraid so. B. Sorry， I made a mistake. C. Thank you for coming to today’s talk. D. Can you give us examples of these measures？ E. Now， let’s move on to the impact of smog on our health. 答案：1－5　CBADE 目 录 英语·必修第三册（BSD） 　　情境二：工作结束后，Mary （M）向James （J）要一杯水喝， 身为环保主义者的 James向她推荐了由海草制作的水杯…… 　　阅读并根据提示完成下面对话。 M：I’ve finally finished my work today.James， can you give me a cup， please？ I want to drink some water. J：OK. Here you are.Oh， wait.Use this one， please. M：1. （为什么我不能用那个）？ Why can’t I use that one　 目 录 英语·必修第三册（BSD） J：I know you love drinking hot water， Mary.That cup cannot hold hot water.2. （这不是一个普通的纸 杯）， you know.It’s made of seaweed.If you use it to hold hot water， it’ll be damaged and I’m afraid you’ll get burned. M：Then why did you buy such cups？ J：You know I 3. （爱护环境）very much.Now we produce too much waste every day.Different from plastic and paper cups， this kind of cup can disappear within thirty days outdoors and they do no harm to soil. It’s not a normal paper cup　 care about the environment　 目 录 英语·必修第三册（BSD） M：4. （这是神奇的）.Could you go to the supermarket with me tomorrow？ I want to buy some such cups， too. J：OK. I didn’t know you also care about the environment. M：Well， I think we all should do what we can to 5. ⁠ （保护地球）. J：I can’t agree more. That’s amazing　 protect the Earth　 目 录 英语·必修第三册（BSD） 核心知识·巧突破 目 录 核心词汇集释 1. desert n.沙漠 vt.遗弃，抛弃 教材原句　sandstorms and deserts沙尘暴和沙漠 【用法】 （1）in the desert　在沙漠中 （2）desert sb/sth　　抛弃/遗弃某人/某物 （3）deserted adj.　　荒芜的；被遗弃的；无人居住的 目 录 英语·必修第三册（BSD） 【佳句】　The vast desert stretched for miles， with no sign of life or water in sight. It felt like an endless sea of sand.　（环境描写） 广阔的沙漠延伸数英里，眼前没有生命的迹象，也没有水源。它感觉 就像是无尽的沙海。 【练透】　单句语法填空 ①The team wandered for days the desert， their water supplies running out with each passing hour. ②It was heartbreaking to see the dog （desert） on the side of the road， alone and frightened. in　 deserted　 目 录 英语·必修第三册（BSD） 【写美】　完成句子 ③He went to the Sahara Desert last year， which is ⁠ ⁠. 去年他去了撒哈拉沙漠，那是世界上最大的沙漠。 the biggest desert in the world　 目 录 英语·必修第三册（BSD） （1）a solution to ...　　　……的解决方法 （2）solve vt.　　解决；解答 2. solution n.解决办法 【用法】 【佳句】　The solution to her broken phone was simple — she took it to a repair shop， and it was fixed in no time.　（动作描写） 她手机坏了，解决方法很简单——她把它带到维修店，很快就修 好了。 目 录 英语·必修第三册（BSD） 【点津】　solve和settle都意为“解决”，solve侧重给出一个答案， settle通常指某种争端。 【练透】　单句语法填空 ①Mr Fox hopes his new invention will offer a solution those villages without a local shop. ②The school advisors help you talk through your problems， but they don’t give you any direct （solve）. to　 solution　 【写美】 词汇升级 ③He always helps me to settle my financial troubles. ⁠ solve　 目 录 英语·必修第三册（BSD） 3. balance n.平衡 vt.使平衡 教材原句　maintaining the balance between human and nature 维持人与自然之间的平衡 （1）keep a balance between ...and ... 保持……与……之间的平衡 keep one’s balance 　　保持平衡 lose one’s balance　　失去平衡 on balance　　 总的来说 （2）balance ...against ...　　权衡……与…… （3）balanced adj.　　 保持（或显示）平衡的 【用法】 目 录 英语·必修第三册（BSD） 【佳句】　（2024·全国甲卷）These developments show China’s journey towards a modern and efficient transportation network that balances convenience with environmental responsibility.　（事物介绍） 这些发展展示了中国向现代化和高效的交通网络迈进的过程，这个交 通网络在便利性和环境责任之间取得了平衡。 目 录 英语·必修第三册（BSD） 【练透】　单句语法填空 ①After balancing the advantages the disadvantages， David wiped away the tears， and made his way to the starting line. ②Having a （balance） diet is of great importance， especially for teens who are growing up. ③My suggestion is that you should try （balance） your diet by eating more fruit and less meat. against　 balanced　 to balance　 目 录 英语·必修第三册（BSD） 【写美】　完成句子 ④To study more efficiently， ⁠ .　（建议信） 为了更有效地学习，你最好在学习和锻炼之间保持平衡。 you’d better keep a balance between learning and working out　 目 录 英语·必修第三册（BSD） 4. do one’s part for sth 尽某人所能做某事 教材原句　doing my part for the environment 为环境尽我的一份力 take part in　　　　　参与，参加（活动） take an active part in　　积极参加 play a part in　　在……中起作用；在……中扮演角色 for the most part　　 多半；通常 in part　　 在某种程度上；部分地 【用法】 目 录 英语·必修第三册（BSD） 【佳句】　By reducing our carbon footprint， we can do our part for future generations and leave behind a healthier planet.　（演讲稿） 通过减少碳排放量，我们可以为子孙后代尽一份力，留下一个更健康 的地球。 目 录 英语·必修第三册（BSD） 【练透】　单句语法填空 ①The officer refused to let his men take part the operation. ② the most part， he stayed up to do his research on Sunday nights. ③These days work plays an important part a single woman’s life. in　 For　 in　 目 录 英语·必修第三册（BSD） 【写美】　完成句子 ④ you enjoy where/and you can make many friends. 积极参加你喜欢的活动，在这些活动中你能交到很多朋友。 Take an active part in the activities　 目 录 英语·必修第三册（BSD） 重点句型解构 ◇句型公式：动词-ing形式作主语 教材原句　Having more green spaces helps the environment. 拥有更多的绿地有利于环境。 目 录 英语·必修第三册（BSD） 【用法】 （1）动词-ing形式（短语）作主语往往表示经常性、习惯性的动 作，谓语动词通常用单数形式。 （2）该用法可以用it作形式主语，常见的形容词和名词有good，no good，no use， useless等。 （3）动词-ing形式可以在前面加上一个名词或代词的所有格，构成 动词-ing形式的复合结构。 目 录 英语·必修第三册（BSD） 【佳句】　Cooking meals at home is not only fun but also a great way to save money and eat healthier. 在家做饭不仅有趣，而且是节省钱和吃得更健康的好方法。 【写美】　完成句子 ① is a good habit. 早睡早起是一个好习惯。 ②Tom is a stubborn boy， so it is no use ⁠. 汤姆是个倔强的孩子，所以和他争论是没有用的。 ③ your trouble to a man like him. 向他那样的人谈你的烦恼是浪费时间的。 Going to bed early and getting up early　 debating with him　 It is a waste of time talking about　 目 录 英语·必修第三册（BSD） 课时检测·提能力 目 录 维度一：品句填词 1. Our beach house is just a couple of miles from the （海 洋）. 2. We moved into a cabin with （电） but no running water. 3. If you’re away from the （雾霾） of cities， then the air is filled with energizing oxygen. ocean　 electricity　 smog　 目 录 英语·必修第三册（BSD） 4. Before use， the （电池） must be charged. 5. Humans take in oxygen and breathe out （碳） dioxide. 6. The road stretched ahead across the （平坦的）landscape. 7. She turned off the t and dried her hands. 8. He wiped the dust off his face with a t ⁠. battery　 carbon　 flat　 ap　 issue　 目 录 英语·必修第三册（BSD） 维度二：词形转换 1. Sunlight reflection may relieve （globe） warming. 2. Measures for preventing and controlling （industry） pollution have gradually been perfected. 3. The organisation was set up to preserve endangered species from （extinct）. 4. In the future， we will have more quick ⁠ （transport） means. global　 industrial　 extinction　 transportation　 目 录 英语·必修第三册（BSD） 5. With the help of our English teacher， we had a discussion and finally came up with a proper （solve）. 6. Besides， many parents have limited knowledge about what a （balance） diet is. 7. Mrs Luhrs now edits a magazine， which publishes tips on how to buy （recycle） furniture. 8. The project is aimed to make some companies reuse all ⁠ （desert） plastic bottles. solution　 balanced　 recycled　 deserted　 目 录 英语·必修第三册（BSD） 维度三：固定搭配和句式 1. （沿着古丝绸之路旅游） is an interesting and rewarding experience. 2. We should （尽我们的一份力） the environment by recycling and conserving energy. 3. Learning to （保持平衡） is one of the first steps in learning how to ride a bike. Traveling along the ancient Silk Road　 do our part for　 keep your balance　 目 录 英语·必修第三册（BSD） Ⅰ.阅读理解 A 　　（2025·山东菏泽期末）Ben was eleven years old when he spotted his neighbour， Julie， working in her garden. He popped his head over the fence， and said to her， “I’ve seen you’re very good with a lawn mower （割草机） and gardening tools. The hedge （树篱） over the pathway near here has become so overgrown that I am planning to cut it back myself. Would you like to help out？” 目 录 英语·必修第三册（BSD） 　　Julie loved the idea of helping Ben and their community. They agreed to cut the hedge the following Sunday. Ben’s brother Josh， aged 8 at the time， also came along to help. All three of them tackled away at it until they reduced it. 　　They posted photos of their handiwork on “Our Malmesbury”， their local Facebook Group. The community reaction was amazing. The comments and reactions just kept on coming. The whole town of Malmesbury seemed to embrace their team spirit and felt inspired to follow their lead. Many people raised their hands to volunteer and do more to keep their town tidy. With many willing hands， their town has transformed. Before， the town looked a bit run down， but now， the place looks cleaner and tidier. 目 录 英语·必修第三册（BSD） 　　To keep the projects going， Ben created a Facebook page and website to support their projects. Their Facebook Page “Helping The Community Of Malmesbury” currently sits at 669 members and is a place for all the locals to share what litter picking and cleaning up they have been up to. Ben also managed to sort funding through local businesses and associations. The funding has helped them obtain trees， plants， tools， and gardening equipment. When community members plan a clean-up， they can contact them via the website to access any tools and equipment they need to complete a project. 目 录 英语·必修第三册（BSD） 　　Ben is so pleased that 6 years later， the clean up campaign is still in full-swing. He has just been so overwhelmed with the support over the years that he cannot thank the community enough. Their mission will not stop. 语篇解读：本文是一篇记叙文。文章主要讲述了Ben和邻居Julie以及 弟弟Josh一起修剪树篱，并通过社交媒体激发了整个社区清洁行动的 故事。 语篇解读：本文是一篇记叙文。文章主要讲述了Ben和邻居Julie以及 弟弟Josh一起修剪树篱，并通过社交媒体激发了整个社区清洁行动的 故事。 目 录 英语·必修第三册（BSD） 1. What did Ben invite Julie to do？（　　） A. Mow the lawn. B. Cut the hedge. C. Repair the fence. D. Help the neighbor. 解析：　细节理解题。根据第一段最后两句可知。Ben邀请Julie帮忙 修剪树篱。 √ 目 录 英语·必修第三册（BSD） 2. What did the community do after seeing their post？（　　） A. They cleaned their town. B. They shared more photos. C. They embraced each other. D. They stood by doing nothing. 解析：　细节理解题。根据第三段中的The whole town ...keep their town tidy.可知，社区居民在看到他们的帖子后，开始清洁城镇。 √ 目 录 英语·必修第三册（BSD） 3. What is paragraph 4 mainly about？（　　） A. Ways to raise funds. B. Efforts to run the projects. C. Scenes of doing cleaning. D. Feelings of managing the projects. 解析：　段落大意题。本段主要讲述了Ben为维持项目所做的努力。 √ 目 录 英语·必修第三册（BSD） 4. What can we learn from the text？（　　） A. No pains， no gains. B. You reap what you sow. C. More haste， less speed. D. Many hands make light work. 解析：　推理判断题。根据文章内容，尤其是第三段最后两句可 知，文章主要讲述了Ben和他的邻居Julie以及弟弟Josh一起修剪树篱， 从而引发小镇居民积极参与小区清洁活动的故事。由此我们可以学到 “众人拾柴火焰高”这个道理。 √ 目 录 英语·必修第三册（BSD） B 　　（2025·福建泉州期末）Singapore’s Gardens by the Bay stands as a shining example of the nation’s promise to bring nature into city living. This groundbreaking project， built in 2012， shows how creative design and green living can appear at the same time in a busy central city. 　　The project covers 101 hectares of recovered land and features three waterfront gardens： Bay South， Bay East， and Bay Central. The centerpiece， Bay South， is home to the famous Supertree Grove， a collection of gardens that reach heights of up to 50 metres. These 目 录 英语·必修第三册（BSD） Supertrees not only serve as sightseeing wonders but also play an important role in the park’s sustainable ecosystem by collecting rainwater， producing solar energy， and providing living areas for local high land wildlife. Besides， the Cloud Forest is a wonderful glass dome （圆顶） that houses a 35-metre-tall mountain covered with plants and an eye-catching indoor waterfall. Visitors can start a journey through the forest， learning about the local biodiversity （生物多样性）. 目 录 英语·必修第三册（BSD） 　　As Gardens by the Bay continues to grow， there are exciting plans for development in the works. Future projects may include new garden exhibits， interactive equipment， and better sustainability ways. The gardens aim to remain at the leading position of creative green spaces， inspiring visitors with new experiences and educational chances. 　　One wisdom from the project is the importance of teamwork between various groups of people. The Singapore government worked closely with builders， engineers， and environmentalists to ensure that the design was not only attractive but also ecologically sound. The method drove the application of modern technologies， which allow for the plantation of various plants from different climates. 目 录 英语·必修第三册（BSD） 　　The gardens utilize rainwater gathering， solar energy， and natural airing to reduce energy and water usage. Moreover， the project stresses the value of public partnership. It also encourages visitors to connect with nature and understand the importance of biodiversity. This has led to increased community cooperation and a greater love for the environment. 语篇解读：本文是一篇说明文。文章主要介绍了新加坡滨海湾花园 项目的特点与意义。 语篇解读：本文是一篇说明文。文章主要介绍了新加坡滨海湾花园 项目的特点与意义。 目 录 英语·必修第三册（BSD） 5. What does the Gardens by the Bay project show？（　　） A. How city planners can use modern technology. B. How Singapore includes green living into a city. C. How citizens grow more plants in limited space. D. How Singapore spreads its city planning experience. 解析：　细节理解题。根据第一段可知，滨海湾花园项目展示了新 加坡如何将绿色生活融入城市。 √ 目 录 英语·必修第三册（BSD） 6. What is a function of the Supertree Grove？（　　） A. It is home to the waterfront gardens. B. It supports the park sustainability. C. It houses a mountain covered with plants. D. It shows the high land’s biodiversity. 解析：　细节理解题。根据第二段中的These Supertrees ...local high land wildlife.可知，Supertree Grove的功能是支持公园的可持续性。 √ 目 录 英语·必修第三册（BSD） 7. What is paragraph 3 mainly about？（　　） A. The project’s general features. B. The project’s basic facilities. C. The project’s important experience. D. The project’s future development. 解析：　段落大意题。本段主要介绍了滨海湾花园项目的未来发展 计划。 √ 目 录 英语·必修第三册（BSD） 8. What does the underlined word “utilize” in the last paragraph mean？（　　） A. Give way to. B. Keep track of. C. Pay attention to. D. Take advantage of. 解析：　词义猜测题。根据画线词所在句可知，花园利用雨水收 集、太阳能和自然通风等技术来降低能源和水资源的消耗。因此， utilize意为“利用”。 √ 目 录 英语·必修第三册（BSD） C 　　（2025·济南期中）As climate change quickly advances， many Middle Eastern countries are making the change from oil-based economies to ones that attract people from around the world — for travelling， business， work or to live. 　　One such example is NEOM to be built in Saudi Arabia. A key part of NEOM is“The Line”， a $725 billion futuristic （未来派的） city which will house 9 million people. It is a mirrored wall-like building， 200 meters wide and 500 meters tall. To be built in north-western Tabuk 目 录 英语·必修第三册（BSD） Province， the project will spread 170 kilometres from the Red Sea across deserts， mountains and valleys. 　　At first look， the project appears environmentally impressive. The city area is no more than 100 metres from any point in the city. A high- speed electric public transport service makes sure every part of The Line is within 20 minutes away. Unfortunately， as in many high-rise buildings with a large population inside， a vertical （垂直的） transportation system would be needed， for it is equal to a 125-floor building. 目 录 英语·必修第三册（BSD） 　　The project costs also seem OK at US $55，000 per person. Let’s say this is achievable （做得成的） in a country like Saudi Arabia and only covers infrastructure （基础设施）. Even so， it remains to be seen how super-high-speed transport and most advanced infrastructure and services in the hugest building ever built can be cost-effective. 　　The Line is planned for green living. Energy comes from renewable sources， waste water is recycled， and it owns the latest “smart city” and mixed-use building technologies. Car ownership is avoided in favour of walking， cycling and public transport. 目 录 英语·必修第三册（BSD） 　　However， the materials to be used and the building of such a big project could be very harmful to the environment. The plan says no one would be more than two minutes from nature. But does this include the waiting times for a lift？ Without careful design， a high dependence on vertical transportation may ruin the pleasure of walkable or bicycle- friendly areas. 语篇解读：本文是一篇说明文。文章介绍了沙特阿拉伯将要建设的 The Line的基本情况、规划理念以及可能面临的问题等。 语篇解读：本文是一篇说明文。文章介绍了沙特阿拉伯将要建设的 The Line的基本情况、规划理念以及可能面临的问题等。 目 录 英语·必修第三册（BSD） 9. Why will “The Line” be built in Saudi Arabia？（　　） A. To take a step towards green economies. B. To attract more tourists from all over the world. C. To house the increasing population in Saudi Arabia. D. To make preparations for a project known as NEOM. 解析：　细节理解题。根据第一段及第二段中“其中一个例子”可 知，许多中东国家正从石油经济向吸引全球人才的绿色经济转型。 The Line就是这样的一个例子。 √ 目 录 英语·必修第三册（BSD） 10. How does the author introduce “The Line” in paragraph 2？ （　　） A. By giving an example. B. By expressing opinions. C. By providing numbers. D. By making a comparison. 解析：　推理判断题。根据第二段中的数字可推知，本段主要是以 列数字的方式来对其进行介绍的。 √ 目 录 英语·必修第三册（BSD） 11. What do we know about “The Line”？（　　） A. It will possibly cost $725 million to build. B. It will be completely environmentally friendly. C. It will require a vertical transportation system. D. It will be a 125-floor mirrored wall-like building. 解析：　细节理解题。根据第三段最后一句可知，由于其相当于125 层的建筑，内部人口众多，所以需要垂直交通系统。 √ 目 录 英语·必修第三册（BSD） 12. What attitude does the author take towards “The Line”？（　　） A. Unclear. B. Doubtful. C. Unconcerned. D. Hopeful. 解析：　观点态度题。根据最后一段可推知，作者对“The Line” 持怀疑态度。 √ 目 录 英语·必修第三册（BSD） Ⅱ.阅读七选五 　　（2025·贵州黔西期末）All kinds of pollution and waste are doing harm to the earth. 13.（　　） So everyone can do something to help the environment. Here are a few ideas. 　　Save energy. 　　First of all， turn off the unused lights in time and consider using energy-saving light bulbs （灯泡）， which can save much electricity. 14.（　　） For example， you can take shorter showers. Also， turning off the tap as you brush your teeth can save much water， too. 目 录 英语·必修第三册（BSD） 　　15. （　　） 　　If the place you want to go is not far away， please ride a bike instead of driving a car. Riding seems to be a better choice， because it can help cut down the air pollution. You can also choose public transportation， such as taking a bus or subway. 　　Say no to waste. 　　16. （　　） Don’t take more than you can eat. Growing food needs much work. Moreover， get long life out of things you own by taking good care of them. If something is broken， don’t just throw it away. You can try to fix it or use it to make something else. 目 录 英语·必修第三册（BSD） 　　Use reusable things. 　　When you go shopping， don’t use a paper gift bag， because it is not environmentally friendly. Disposable plastic and paper bags can pollute oceans and the soil. They are hard to break down. 17.（　　） A. Then use less water. 目 录 英语·必修第三册（BSD） B. Choose green travel. C. You should eat less food. D. Ride a bike to school or work every day. E. A reusable cloth bag will be a wise choice. F. However， small steps add up to make a big difference. G. The easiest step you should take is to avoid wasting food. 语篇解读：本文是一篇说明文。文章主要介绍了保护环境的一些方 法。 语篇解读：本文是一篇说明文。文章主要介绍了保护环境的一些 方 法。 目 录 英语·必修第三册（BSD） 13. F　上文指出各种污染和废物对地球造成伤害，下文指出每个人 都可以做一些事情来保护环境，上下文是转折关系。F项（但是，小 步骤加起来有很大的作用）承上启下，符合语境。 14. A　上文介绍了节约用电的一些方法，下文举例说明要节约用 水。A项（然后使用更少的水）引起下文，符合语境。 15. B　此处是本段小标题。本段主要建议绿色出行。B项（选择绿色 出行）能概括本段内容。 16. G　下文指出要避免浪费食物。G项（你能采取的最简单的步骤是 避免浪费食物）引起下文。 17. E　上文指出不要用纸质礼品袋和一次性塑料袋以及纸袋。E项 （可重复使用的布袋将是明智的选择）承接上文，符合语境。 目 录 英语·必修第三册（BSD） $