选择性必修第三册 UNIT 9 HUMAN BIOLOGY（word练习）-【导学教程】2025年英语新编高考大一轮总复习（北师大版）

[对应学生用书P552] A级　阅读提升练 Ⅰ.阅读理解 A (2023·绍兴诊断性考试)Brazilian artist Néle Azevedo is best known for big public art pieces.The artist carves hundreds of 20­centimeter­tall ice figures seated with their ankles crossed and places them atop outdoor steps and puts them in city squares all over the world，where they quickly melt.The faceless sculptures drip and stream into small puddles as time passes.Her works have been adopted by environmentalists as a kind of activists' art against climate change. But is it? Yes and (mostly) no. The mass of melting bodies makes a natural connection with the threat humankind faces due to rising global temperatures.“Its close link with that subject is evident，”said the artist.In addition to the threat of global warming itself，the sheer number of sculptures sitting together also calls attention to the fact that we humans are all in it together.“Such kind of threat also finally puts man in his place，his fate is along with the destiny of the planet，and he is not the‘king’of nature，but an essential element of it，”continues Azevedo on her website. “I took every characteristic of traditional monuments and made the opposite，”she says.“I made small figures that sit on the floor.It doesn't honor anybody.It does honor the unknown.” Azevedo explains，“In a minute action，the rules of the monument are inverted：in the place of the hero，the unknown；in the place of the solidity of the stone，the momentary process of the ice；in the place of the monument size，the minimum size of the perishable (易腐烂的) bodies.”Originally Azevedo wanted her art to get people thinking about impermanence，and the sight of ice transforming into a puddle of water certainly does that brilliantly. [语篇解读]　本文是一篇说明文。本文主要介绍了巴西艺术家Néle Azevedo的冰雕作品，她的作品被环保主义者视作一种对抗气候变化的艺术。 1．What can we learn about Néle Azevedo's artworks? A．They are put in public places for artists to appreciate. B．They are adopted as a way of showing artistic talents. C．They are linked with the threat of climate change. D．They are considered as a symbol of unity. 解析　C　细节理解题。根据第一段中的“Her works have...climate change”可知，她的作品被环保主义者视为一种对抗气候变化的激进艺术。据此可知，她的作品与气候变化的威胁有关。 2．Which of the following can best replace the word “inverted” in paragraph 5? A．kept track of B．turned upside down C．laid emphasis on D．taken into account 解析　B　词义猜测题。根据第四段中的“I took every...made the opposite”可知，该艺术家利用了传统纪念碑的每一个特点，并做了相反的东西。根据第五段中的“in the place of the hero...size of the perishable(易腐烂的)bodies”可知，在有英雄的地方放无名之人；在石头坚固的地方展示冰的短暂过程；在放置纪念碑的地方放最小尺寸的易腐物体。据此可知，纪念碑规则被颠倒了，画线词inverted和turned upside down意思相近。 3．What can be inferred about the square show from the last paragraph? A．It is permanent by nature. B．It lacks practical influence. C．It takes long to see the results. D．It conveys the artist's exact intention. 解析　D　推理判断题。根据最后一段的“Originally Azevedo...does that brilliantly”可知，最初，Azevedo希望她的艺术作品能让人们思考无常，而冰变成水坑的景象无疑成功地做到了这一点。据此可以推知，该艺术家在广场上展示的作品传达了她的确切意图。 4．Which of the following can be the best title for the text? A．Public Interest in Contemporary Art B．Ice Figures Transforming into Water C．Responsibility Demanded from Activist Artists D．Mini Sculptures Echoing the Climate Crisis 解析　B　文章标题题。通读全文可知，本文主要介绍了巴西艺术家Néle Azevedo的冰雕作品，她希望通过自己的作品让人们思考无常，冰变成水坑的景象无疑成功地做到了这一点，因此B项“冰雕变成水”点明主旨，最适合作本文标题。 B (2023·南京六校联合体调研)Queen Elizabeth National Park is a place of outstanding beauty and extreme biodiversity.On a previous underwater assignment with my wife and photographic partner，Jennifer Hayes，we'd documented healthy coral reefs surrounded with fish，sharks，and crocodiles.We knew that time，increased tourism and climate change could make the park different—so 15 years later，we returned to see how it was going. We were photographing some jellyfish.Jennifer，her back to me，was focused on something above her.Out of the corner of my viewfinder，I saw a sizable crocodile coming.As I began to take its photograph，I realized that the crocodile was going to swim directly between Jennifer and me.I started to make loud noises through my regulator and moved towards Jennifer，firing a burst of flash­lit shots to warn her that we had company.She quickly detected my signal and turned to meet our visitor. She gave me a quick thumbs­up，nodded OK，and said“Hello，handsome”as she bent closer to take its photos.I admired her for treating the crocodile with respect，calm curiosity，and absolute joy.She didn't feel threatened.She was familiar with this kind of crocodile in this particular place—and she had a big underwater camera housing that could double as a mighty shield(盾牌)if needed.After a few pictures the crocodile，unimpressed with us，swam downstream on its way to do other crocodile things.We continued our search for jellyfish. There is always risk in our line of work.But this encounter highlighted the good news that we saw all around us here.The crocodile is an indicator animal，a symbol of a healthy ecosystem that can support top predators(捕食性动物).The easing of travel restrictions is bound to bring more tourists—so it's vital to maintain a balance among ecotourism，exploration，and conservation.That's possible if visitors adopt the same philosophy that we hold toward that curious crocodile. We_enter_Earth's_oceans_on_their_terms，not_our_own． [语篇解读]　本文是一篇记叙文。作者和妻子返回伊丽莎白女王国家公园去看生态系统的变化，偶遇了一只鳄鱼。通过和鳄鱼的短暂接触，他们发现公园的生态系统维持得很好，最后作者呼吁我们在探索自然的过程中也要尊重自然。 5．What was the author's purpose in returning to Queen Elizabeth National Park? A．To enjoy its beauty. B．To assess a document. C．To check its ecosystem. D．To photograph jellyfish. 解析　C　推理判断题。根据第一段中的“We knew that time...see how it was going”可知，作者和妻子回来是想看看伊丽莎白女王国家公园的变化，结合文章内容尤其是最后一段中的“a healthy ecosystem”可推测出他们主要是想看看公园的生态系统。 6．Why did Jennifer feel at ease with the crocodile? A．She met it before. B．She trusted her husband. C．She could protect herself. D．She longed for its company. 解析　C　推理判断题。根据第三段第四句“She was familiar with...if needed”可知，在这个特殊的地方她对这种鳄鱼很熟悉，况且她还有一个巨大的水下摄像机外壳，如果需要的话这个外壳可以充当强大的盾牌；据此可以推知，面对鳄鱼Jennifer感到轻松是因为她可以保护她自己。 7．What is the implied meaning of the underlined part in the last paragraph? A．Explore nature with curiosity. B．Respect nature while exploring it. C．Study nature while developing tourism. D．Protect nature through biological research. 解析　B　句意理解题。根据第四段第三、四、五句“The crocodile is...curious crocodile”可知，鳄鱼是一种标志性动物，是可以支持顶级捕食性动物生存的健康生态系统的象征。维持生态旅游、探险和保护生态这三者之间的平衡至关重要。如果游客采用作者和妻子对待那只好奇的鳄鱼的相同理念，这种平衡是有可能达成的。再结合前文可知，作者和妻子对鳄鱼持尊重的态度，据此可推知，画线句应是说我们在旅游、探索自然时也要尊重自然。 8．Which of the following can be the best title for the text? A．A Narrow Escape B．A Risky Job C．An Underwater Assignment D．A Chance Meeting 解析　D　主旨大意题。文章讲述了作者和妻子重返伊丽莎白女王国家公园，想看看生态系统的变化，后来在拍照过程中偶遇了一只鳄鱼。通过和鳄鱼的短暂接触，作者觉得生态系统维持得很好，最后作者呼吁我们在探索自然的过程中也要尊重自然。所以D项最适合作本文的标题。 Ⅱ.七选五 (2023·石家庄教学质量检测)Too much stuff, too much to do, too much stress...These are weighing people down and breaking their spirit.__1__ Here are several things to help you get started. The first step is to sort out your possessions. To live a simple life, you need a simple living space. So take some time to tidy your living area. Focus on keeping things that you value deeply and throw away things that you don't need any longer.__2__ Finally, you will be shocked to see how few possessions you actually use in your daily life. __3__ As humans we tend to think of what we are used to as being naturally right. However, there could be problems in the million little things that bother us as we go about our day. The best skill you can develop in your life is the ability to take a step back and look at things objectively by raising doubts about what is seemingly the way it is supposed to be. We should always stay mindful and live with intention. If there is something in your life that you don't love, change it! Cut out the things that aren't serving you. You can write down what an ideal day would look like for you in five years' time. Then outline what things you want more in your life and what things you want less.__4__ Managing your time wisely counts.__5__ Instead, take some time to think about whether it's something that you are excited about attending. Be clear how you spend your time and take control of what you do. This is how you can guarantee yourself a flexible schedule and do everything in an unhurried way. A．Minimalists live intentionally. B．Complete the process in several sweeps. C．Don't reply “yes” to everything you're invited to. D．With that in hand, you have a goal to work towards. E．From time to time you need to question your lifestyle. F．That's why there is a growing interest in the minimalist lifestyle. G．Having a flexible schedule depends on you taking control of things. [语篇解读]　本文是一篇说明文。介绍了如何做到极简生活。 1．解析　F　空前提到太多的事情和压力压得人们喘不过气，空后提到这里有几件事可以帮你开始，由此可知该空应该会讲到一种减轻人们压力的方式，起到承上启下的作用，F项“这就是为什么人们对极简主义生活方式越来越感兴趣”符合语境。后文的内容也都是关于如何做到极简主义。故选F。 2．解析　B　空前一句讲到专注于保留你非常珍视的东西，扔掉你不再需要的东西，空后一句提到最后你会惊讶地发现你在日常生活中实际使用的物品是如此之少。由此可知，该空的内容应与完成整理任务有关。对比各选项可知，B项“在几次打扫中完成此过程”符合语境，故选B。 3．解析　E　分析篇章结构可知，该篇为总分结构。第二段至第五段，每段的首句为该段的主题句。根据结构衔接做题法可知，该空也应为该段的主题句。根据该段内容尤其是“The best skill you can develop...the way it is supposed to be”可知，此段讲述的是要时常对自己的生活方式提出质疑，E项符合语境，故选E。 4．解析　D　根据该段首句可知，该段讲述的是我们应该始终保持有意识、有目标的生活方式，由此可知，该空内容应与目标相关，D项“有了那个，你就有一个奋斗的目标”符合语境，且D项中的that指代空前说的概述你在生活中更想要的东西和不太想要的东西这一行为。故选D。 5．解析　C　该空后面的Instead和attending是解题的关键，该空后一句提到相反，花点时间想想你是否有兴趣参加。分析各选项可知，C项符合语境，指的是不要对所有你受到的邀请都回答“是”，并且该选项中的invited与空后一句中的attending呼应。故选C。 Ⅲ.完形填空 (2023·重庆第二次质量调研)With over 125，000 followers，34­year­old Oliver James is a star in the Book Tok community. And it all started with a simple __1__：Learn to read. For most of the kids，school is a place where they can develop a relationship with learning in a __2__ environment. For James，the opposite. __3__ with learning and behavior disabilities made him in __4__ education. “The special education system at the time was a lot more __5__ on behavior than educating，” he said. Reading __6__ carried over into James' adulthood and it significantly __7__ his employment opportunities and affected his self­esteem(自尊心). However，when he and his wife decided to __8__ their family to three, James became determined to change things. Starting his journey with a book of inspirational quotes gifted by his wife，James began reading bits out loud and __9__ them to TikTok. Being a motivational speaker，he would often combine his interests with his heartfelt honesty and personality. __10__ will often send James more books to read in hopes for his book reviews. But perhaps the biggest __11__ has been the way reading has __12__ James' relationship with his son. In an interview，he shared that they've not only __13__ over books but reading has proven to be a great __14__ for mental health，which has helped James become a better parent. James' new goal is to read 100 new titles by 2024—__15__ for any bookworm in this day and age. [语篇解读]　本文是一篇记叙文。Oliver James是一个有学习行为障碍的人，阅读障碍一直伴随着他直到成年，并极大地影响了他的就业和生活。等他和妻子决定生孩子时，他决定改变这一情况。James开始阅读并在社交媒体上打卡，这也激励了粉丝们。粉丝们经常给他寄书读，盼望着聆听他的书评。阅读也增进了他和儿子的关系。他还计划在2024年读100本新书。 1．A.title B．goal C．name D．campaign 解析　B　根据下文的“Reading __6__ carried over into James' adulthood...James became determined to change things”可知， James决定改变自己有阅读障碍的状况。据此可以推断，他在Book Tok社区阅读的最初目标(goal)就是学习阅读。另外，最后一段中的“James' new goal”也是提示。campaign“(有计划的)活动，运动”。 2．A.safe B．dangerous C．quiet D．noisy 解析　A　根据常识可知，学校是一个进行学习的安全(safe)之地。 3．A.Putting up B．Going up C．Clearing up D．Growing up 解析　D　根据下文的“Reading __6__ carried over into James' adulthood”可知，在成长(Growing up) 的过程中，阅读障碍一直伴随着 James。put up“提供，建造，提高”；go up“(建筑物、墙等)被建造，上涨”；clear up“放晴，整理，清理，打扫”。 4．A.logical B．mental C．special D．common 解析　C　此处考查词汇复现，呼应下文中的“The special education system at the time”。据此可知，由于阅读障碍，James 只能接受特殊(special)教育。logical“符合逻辑的，合乎情理的，合乎常理的”；mental“思想的，精神的，思考的，智力的”。 5．A.depended B．turned C．brought D．focused 解析　D　分析语境：根据上文的“For most of the kids...For James, the opposite”可知，James的情况与绝大多数孩子相反→做推断：据此可知，对James来说，特殊教育系统相对于培养他的阅读能力而言，关注(focused)更多的是他的行为培养→定答案：故选D。 6．A.struggles B．proposals C．conflicts D．regrets 解析　A　分析语境可知，空处指的是上文中的“learning and behavior disabilities”，阅读障碍一直伴随到他成年。struggle“斗争，奋斗，努力”；proposal“提议，建议，动议”；conflict“冲突，争执，争论”。 7．A.developed B．increased C．reduced D．damaged 解析　C　结合常识和下文中的“affected his self­esteem(自尊心)”可知，阅读障碍降低了James的自信，也极大地减少(reduced)了他的就业机会。 8．A.leave B．occupy C．expand D．forgive 解析　C　根据本文叙述的顺序可知，文章从James小时候写起，写到了他成年，此处讲到了他结婚后的情况，他和妻子决定从二人世界扩展成为三口之家。occupy“占据(空间、时间)，使忙于(做某事)”；expand“扩大，增加，增强(尺码、数量或重要性)”。 9．A.commenting B．posting C．writing D．connecting 解析　B　根据上文的“a star in the Book Tok community”可知，此处讲到James开始大声阅读并把视频发到(posting) Book Tok社区上。comment“表达意见”；connect“(使)连接，联结”。 10．A.Fans B．Librarians C．Speakers D．Booksellers 解析　A　根据上文的“began reading bits out loud and __9__ them to TikTok”和下文中的“in hopes for his book reviews”可知，James 的粉丝(Fans)经常送书给他并希望看到他的书评。librarian“图书馆馆长，图书管理员”；bookseller“书商”。 11．A.weakness B．outcome C．threat D．impact 解析　D　根据语境和下文的“has helped James become a better parent”可知，此处讲到了读书给James带来的影响(impact)。weakness“虚弱，软弱，缺点，不足”；outcome“结果，效果”；threat “威胁，恐吓”。 12．A.ruined B．shaped C．ended D．saved 解析　B　根据语境和下文的“has helped James become a better parent”可知，读书影响(shaped)了James和儿子之间的关系。ruin“毁坏，破坏，糟蹋”。 13．A.collapsed B．bonded C．quarreled D．argued 解析　B　根据语境和常识可知，此处在说阅读的积极影响，James和其儿子之间通过图书应是建立了密切的关系。collapse“突然倒塌”；bond“增强(与某人的)信任关系，建立(与某人的)互信关系”；quarrel“争吵，吵架”。 14．A.resource B．barrier C．preference D．loan 解析　A　根据上文的“affected his self­esteem(自尊心)”和他有了很多粉丝、增进了和儿子的关系等可以看出，书籍也是他心理健康的一大资源(resource)。barrier“障碍，障碍物”；preference“偏爱，爱好，喜爱”；loan“贷款，借款”。 15．A.unrealistic B．greedy C．ambitious D．influential 解析　C　结合常识和上文中的“to read 100 new titles by 2024”可知，在如今的时代对任何一个书虫来说这是一个宏大的(ambitious)目标。unrealistic“不切实际的，不实事求是的”； greedy“贪婪的，贪心的，贪吃的，渴望的”；influential“有很大影响的，有支配力的”。 B级　写作规范练 Ⅰ.语法填空 (2023·南通第一次调研)Home to the headwaters of the Yangtze, Yellow, and Lancang rivers, the Sanjiangyuan area on the Qinghai­Tibet Plateau (青藏高原) is known as “China's water tower”. It is a 1.________ (whole) unique plateau wetland ecosystem and serves as 2.________ important ecological defense for the country. Decades ago, serious environmental degradation (恶化) in Sanjiangyuan, 3.________ was caused by climate change and human activities, resulted in a large number of lakes drying out and wildlife numbers falling sharply. In 2016, the pilot program of the Sanjiangyuan National Park management system 4.________ (launch).Through painstaking practice, development and innovation, efforts have been made 5.________ (turn) the park into a symbol of the progress of China's ecological civilization. Over the past years, the ecological environment of the Qinghai­Tibet Plateau 6.________ (experience) comprehensive changes. Water conservation in the area has risen 7.________ 11 percent every year, compared with 10 years ago. Local residents enjoy the gifts given by nature, and the 8.________ (establish) of the national park has enabled them to transform from exploiting (开发) nature to becoming its protectors and benefiting from it. Some work as tour guides, 9.________ (assist) visitors from home and abroad. Today, as people walk on the vast land of Sanjiangyuan, looking at the expansive mountains, glaciers, lakes and pastures, 10.________ catching sight of wild animals and birds, they cannot help but be impressed by the vastness and beauty of nature. [语篇解读]　本文是一篇说明文。本文主要介绍了几十年前三江源地区生态开始恶化，之后国家采取了一系列措施保护该地区，并取得了成效。 1．解析　wholly　考查词性转换。句意为：它是一个完全独特的高原湿地生态系统，是国家重要的生态防御。设空处修饰空后的形容词unique，应用副词。故填wholly。 2．解析　an　考查冠词。句意见上一题解析。此处表示“一个重要的生态防御”，为泛指，应用不定冠词修饰，且空后important的发音以元音音素开头。故填an。 3．解析　which　考查定语从句。句意为：几十年前，气候变化和人类活动造成三江源环境严重恶化，这导致大量湖泊干涸，野生生物数量急剧下降。分析句子结构可知，设空处引导非限制性定语从句，先行词为serious environmental degradation，指物，且设空处在从句中充当主语，应用which引导该从句。故填which。 4．解析　was launched　考查动词的时态和语态及主谓一致。句意为：2016年，启动三江源国家公园管理体系试点项目。分析句子结构可知，设空处在句中作谓语；主语为the pilot program，为单数，谓语动词也应用单数形式；根据时间状语In 2016可知，此处应用一般过去时，且主语和launch之间为被动关系，故应用一般过去时的被动语态。故填was launched。 5．解析　to turn　考查非谓语动词。句意为：通过辛苦实践、发展和创新，(人们)努力使园区成为中国生态文明进步的象征。分析句子结构可知，have been made为谓语，且与设空处之间无连词连接，故此处应用非谓语动词。根据句意可知，此处表示目的，故应用不定式作目的状语。故填to turn。 6．解析　has experienced　考查动词的时态和主谓一致。句意为：在过去的几年里，青藏高原生态环境发生了全面变化。分析句子结构可知，设空处在句中作谓语；根据时间状语Over the past years可知，此处应用现在完成时；主语the ecological environment of the Qinghai­Tibet Plateau为单数，谓语动词也应用第三人称单数形式。故填has experienced。 7．解析　by　考查介词。句意为：与10年前相比，该地区的节水率每年增长11%。rise by为固定搭配，其后常跟表示增幅的表达，表示增长了多少，by后通常接分数、百分数、倍数等。此处表示增长了11%。故填by。 8．解析　establishment　考查词性转换。句意为：当地居民享受大自然的馈赠，国家公园的建立使他们从开发自然转变为自然的保护者并从中受益。根据句意并结合空前冠词the及空后介词of可知，设空处应为名词。故填establishment。 9．解析　assisting　考查非谓语动词。句意为：有些人担任导游，协助来自国内外的游客。分析句子结构可知，work为本句中的谓语动词，动词assist与其之间无连词连接，此处应用非谓语动词形式作状语。assist与其逻辑主语Some之间为逻辑上的主动关系，故应用现在分词形式。故填assisting。 10．解析　and　考查连词。句意为：如今，当人们走在三江源这片广袤的土地上，望着辽阔的山峦、冰川、湖泊和牧场，看到野生动物和鸟类时，不禁被大自然的浩瀚和美丽所折服。根据句意可知，句中looking at the expansive mountains, glaciers，lakes and pastures和catching sight of wild animals and birds为两个并列的现在分词短语作伴随状语，应用and连接两个现在分词短语。故填and。 Ⅱ.应用文写作 为了让同学们远离疾病，保持健康，你们班将举行一次英语班会，主题为“How to be strong and healthy”。请你根据下面提示写一篇发言稿，主要内容包括： 1．存在的问题； 2．解决方法； 3．发出号召。 注意：1.词数80左右； 2．开头和结尾已给出，不计入总词数。 How to be strong and healthy Good morning, boys and girls! It's my great honour to deliver my speech on how to maintain fitness. ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ That's all.Thank you. One possible version： How to be strong and healthy Good_morning,_boys_and_girls!_It's_my_great_honour_to_deliver_my_speech_on_how_to_maintain_fitness． It is obvious that some students are neither in good health nor full of energy.Therefore, I'd like to offer some suggestions on how to keep healthy and energetic. First of all, to get enough sleep, we'd better form the habit of early to go to bed and early to rise instead of staying up late.In addition, we ought to take more exercise and do more outdoor activities to strengthen our body.Last but not least, make sure we keep a balanced diet, which will be beneficial to us. Follow these suggestions, and we will be strong and healthy and stay away from illnesses. That's_all.Thank_you． Ⅲ.读后续写 阅读下面材料，根据其内容和所给段落开头语续写两段，使之构成一篇完整的短文。 (2023·绍兴诊断性考试)Ms.Johnson will never forget Chelsea，a wounded soul.Over the years Chelsea had always struggled，both academically and with self­confidence.Additionally，her mother had died after a heroic battle with a terminal illness when Chelsea was a fifth grader.As she began her sixth grade，Chelsea was still hurting.Ms.Johnson worried about her with good reason. Each fall，Ms.Johnson takes the students for a five­day adventure at Wolf Ridge，an environmental learning center in the woods of Northern Minnesota overlooking Lake Superior.The week is filled with learning，team building，and overcoming seemingly impossible challenges.They go in October，and the turning leaves of trees come to symbolize the changes happening to the students over the week.The steps and growth students make at Wolf Ridge become a metaphor Ms.Johnson uses throughout the year as her students face challenges in the classroom. The most difficult activity is the adventure ropes course，which stretch from tower to tower high among the treetops 25—30 feet above the ground.Ms.Johnson knew this experience would be particularly difficult for Chelsea. When it was time for her to fasten the harness (安全带)，Chelsea was already trembling.The harness offers physical protection，but not much mental comfort when nothing but a slippery board or an unsteady wire is between your feet and the ground far below.Chelsea stepped hesitantly onto the Swinging Wood Bridge，and only after the instructor's encouragement，slowly made her way across its shaky boards up to the first tower.With the support of a chaperone (监护人) stationed there，she began her way across the Burma Bridge，made of merely three wires and straps.Her trembling body added to its shaking.From down below，her ground partners shouted out supportively，“Come on，Chelsea，you're doing great！” Chelsea finally reached the second tower and eventually stepped out onto the next challenge and slowly inched her way across. 注意：1.续写词数应为150左右； 2．请按如下格式作答。 Now she faced what for many is the most difficult activity：the Single Wire. ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ The final challenge is a zip line (高空滑绳)，which requires leaping off the last tower and sliding to the ground. _________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ One possible version： Now she faced what for many is the most difficult activity：the Single Wire. Thinking about the fact that there was only one wire，Chelsea was trembling again and afraid to take one more step. But hearing the cheers from her teacher and classmates below，she got to gain courage. Holding the harness tightly，Chelsea began to walk step by step carefully and cautiously. Finally，she made it. The final challenge is a zip line (高空滑绳)，which requires leaping off the last tower and sliding to the ground. Staring at the zip line，Chelsea didn't feel frightened any longer. Because she found it is much easier to slide to the ground with the line.She had experienced much tougher activities before，so she had the faith to go through it. Without hesitation，Chelsea slid along the zip line and landed on the ground safe and sound. All her teacher and classmates applauded her and there was a wide smile on her face. 学科网（北京）股份有限公司 $$