Unit 5 Section Ⅱ “Understanding ideas”的新知学习环节-【新课程学案】2025-2026学年高中英语选择性必修第二册配套课件PPT（外研版）

该高中英语课件聚焦词汇分层学习、核心词汇突破及重点句式解构，通过课前词汇默写导入，从阅读单词、重点单词到活用单词、拓展构词、高级词块逐步深入，结合核心词汇用法感知与应用，构建从基础积累到语境运用的学习支架。 其亮点在于以语言能力培养为核心，通过核心词汇（如harmony）的用法感知与应用融会、倒装句式的变换仿写训练，提升学生语言理解与表达能力，结合环保主题的随堂训练和语篇综合检测，培养思维品质与学习能力，助力学生系统掌握知识，教师可高效开展教学。

“Understanding ideas”的 新知学习环节 Section Ⅱ 课前词汇默写 核心词汇突破 重点句式解构 课时跟踪检测 Contents 目录 01 02 03 05 04 随堂融通训练 2 01 课前词汇默写 一、阅读单词——知其义 1．the halfway stage　　　　 ______阶段 2．a World Heritage Site 世界______地 3．native inhabitants 当地______ 4．natural habitat 自然_______ 5．the native vegetation 当地______ 6．cause soil erosion 造成土壤______ 中间 遗产 动物 栖息地 植被 侵蚀 7．develop an immunity to the virus 对______产生______ 8．a substantial number of cats ________猫 9．human intervention 人为______ 10．write a postscript 写上______ 11．pest control ______防治 病毒 免疫力 大量的 干预 附言 害虫 二、重点单词——写其形 1．develop an __________ for the birds 以鸟为食 2． __________ the risk of cancer 大大增加患癌风险 3．in _______ 　　　　　　　　　　 一片狼藉 4． __________ sharply 骤减 appetite multiply chaos decrease trap trap 6．since his __________ from the island 自从他离开这座岛后 7．in danger of __________ 有倒塌的风险 8．an isolated __________ 一个孤立的事件 9． _____ us an explanation 欠我们一个解释 departure collapsing incident owe 三、活用单词——悉其变 conserve dramatically dramatic drama subsequently subsequent conservation ecological explode explosion explosive ecology 四、拓展构词——明其规(依据规律串记单词) conservation：“v.(去e)＋-ation”→n. ①reserve→reservation　　　　　 预订 ②prepare→preparation 准备 五、高级词块——通其用 1． __________ 　　　　　 　　 未能做…… 2． ________________ 与……和谐相处 3． __________ 占据；掌管 4． ____________________ 对……产生食欲/兴趣 5． _______________ 被引进；被介绍给 6． _______ 反过来，转而；轮流，依次 7． _______ 导致 8． _____________ 失去控制；不受控制 fail to do in harmony with take over develop an appetite for be introduced to in turn lead to out of control 9． ______________ 提出 10． _______________ 把……从……去除/移走 11． __________________ 从……下降到…… 12． ______________ 结果，因此 13． __________ 结果是，证明是 14． ______________________ 大量的 15． ________________ 最终地；最后地；彻底地；一次了结地 16． __________ 所有；全部 17． ___________ 归功于……；归咎于…… come up with remove ... from decrease from ...to ... in consequence turn out a substantial number of once and for all every last owe ... to ... 02 核心词汇突破 1．Nor would they fail to imagine how its native inhabitants， including royal penguins， king penguins， and elephant seals， existed in perfect harmony with their natural habitat for thousands of years. 他们也不难想象出，数千年来，包括帝企鹅、王企鹅和象海豹在内的当地动物是如何与其自然栖息地完美地和谐共存的。 ★in harmony with 与……和谐相处 |用|法|感|知| ·(“环保”类写作佳句)Only when we learn to exist in harmony with nature can we stop being a threat to wildlife and to our planet. 只有学会与自然和睦共处，我们才不会成为野生生物和地球的威胁。 ·The violin was out of harmony with the rest of the instruments after I tried it out. 我试了一下后发现这把小提琴与其他乐器不协调。 [归纳点拨] (1)harmony n．　　　　 融洽，和睦；和谐；协调 out of harmony with 与……不和谐/不一致 live in harmony 和睦相处，和谐共处 coexist in harmony 和谐共生 (2)harmonious adj. 友好和睦的；协调的，和谐的 harmoniously adv. 友好和睦地；和谐地 |应|用|融|会| (1)单句语法填空/替换加蓝词汇 ①It was obvious that the building was out of harmony _____ the surrounding environment. ②Each member of the community should develop good habits and regulate their behavior in an attempt to create a ___________ (harmony) atmosphere. ③Only when we learn to be at one with nature and animals can we realize the deepest significance of mankind's existence.______________ with harmonious in harmony with (2)完成句子 ④Eventually， they realized _____________________________ ___________________. 最后，他们意识到了与环境和谐相处的必要性。 ⑤______________________________________， our society will become more harmonious. 如果每个人都能与他人和睦相处，那么我们的社会就会变得更加和谐。 the necessity to be in harmony with the environment If everyone can live in harmony with others 2．Even after Macquarie Island became an official nature reserve in the 1970s， the rabbits remained out of control. 即使在20世纪70年代麦夸里岛成为官方自然保护区后，兔子仍然不受控制。 ★out of control 失去控制；不受控制 |用|法|感|知| ·(2025·浙江1月高考写作)The enthusiasm of some students for filming short videos on campus is out of control as if they have forgotten their primary task of studying. 一些学生在校园内拍摄短视频的热情失控了，就好像他们忘记了学习这个首要任务。 ·(“倡议”类写作佳句)Put down your phone and you'll be in control of your time and your life again. 放下手机，你将能重新掌控自己的时间与人生。 ·While you cannot turn back the clock， you can take control of your life. 虽然你不能让时间倒流，但你可以掌控自己的生活。 [归纳点拨] lose control of　　　　　 对……失去控制 be under control 被控制住，处于控制之下 beyond (one's) control (某人)无法控制 be in control of 控制着，掌管着 be in the control of 在……的控制/掌管下 bring ...under control 把……控制住 take control of 对……进行控制 |应|用|融|会| (单句语法填空/完成句子) ①Don't worry — everything is _______ control. ②Without them， genome editing could be as dangerous as a car ____ of control. under out ③The speaker made an announcement that __________________ _______________________ the residents be permitted to return to their homes. 发言人宣布，只有当火势得到控制时，居民才能返回家园。 ④Students are encouraged to ______________________________， rather than just depending on the teacher. 鼓励学生掌控自己的学习，而不仅仅是依赖老师。 only when the fire was under control would take control of their own learning 3．But although the virus caused the rabbit population to decrease from 130，000 to around 10，000， it also meant less food for the cats. 然而，虽然病毒使得兔子的数量从130 000降到约10 000 只，但这也意味着猫的食物变少了。 ★decrease v．(使)变小，(使)减少 n．减少；降低 |用|法|感|知| ·(“环境保护”主题佳句)As a result of global warming，the number of many animals is decreasing. 由于全球变暖，许多动物的数量正在减少。 ·(“环境保护”主题佳句)To decrease the amount of rubbish and to protect the environment， we should recycle more waste materials. 为了减少垃圾的数量和保护环境，我们应该回收利用更多的废弃物质。 ·Over the past decades， sea ice has been on the decrease in the Arctic as a result of global warming. 在过去的几十年里，由于全球变暖，北极的海冰一直在减少。 [归纳点拨] (1)decrease from ...to ...　 从……下降到…… decrease by 减少了……(表示减少的幅度) decrease in 在……方面减少 (2)a decrease in ... 在……方面的减少 on the decrease 在减少 |应|用|融|会| (单句语法填空/完成句子) ①The number of employees has decreased ___ twenty after the manager laid off some of them. ②The output of August in this company decreased ____ 20% compared with that of July. ③She takes exercise every day， and she has decreased her weight from 80 kilograms ___ 60 kilograms. ④____________________________________ due to smart irrigation systems. 城市水资源浪费因智能灌溉系统而减少。 to by to Urban water waste is on the decrease [联想发散] increase v．& n．　 增加，增长 increase to 增加到……(表示增加后的量) increase by 增加了……(表示增加的幅度) increase in 在……方面增加 on the increase 在增加 4．This intervention is a long， much-delayed ending to a sad story， but we humans owe it to the island to give it a happy ending. 这次干预行动是这场悲剧漫长而屡被贻误的大结局，但这是我们人类应该做的，我们亏欠这座岛屿一个美好的结局。 ★owe v．应该做，对……负有……的义务，欠(情)；归功于 |用|法|感|知| ·(“感谢”类写作佳句)I would like to express my sincere thanks to you， for I should owe it to you that I have made great progress in English learning. 我想向你表达我真诚的感谢，因为我在英语学习方面取得的巨大进步归功于你。 ·(“道歉”类写作佳句)I owe you an apology for what I said this morning.Anyway， I meant no offence. 我为今天早上说的话向你道歉。无论如何，我没有冒犯的意思。 ·He owed his survival to his strength as a swimmer. 他因为水性好才幸免于难的。 [归纳点拨] (1)owe sth.to sb.＝owe sb.sth.　 欠某人某物 (2)owe (3)owing to 由于，因为 |应|用|融|会| (单句语法填空/完成句子) ①_______ (owe) to my lack of experience，I didn't do the work well. ②I must say I owe all the achievements ____ the encouragement and help from my colleagues and friends. ③You _________________________ for what you have done. 你应该为你的所作所为向你的朋友道歉。 [名师点津]　owing to (＝because of)“由于，因为”引导原因状语，可位于句首、句中或句末。 Owing to owe your friend an apology 03 重点句式解构 Nor would they fail to imagine how its native inhabitants， including royal penguins， king penguins， and elephant seals， existed in perfect harmony with their natural habitat for thousands of years. 他们也不难想象出，数千年来，包括帝企鹅、王企鹅和象海豹在内的当地动物是如何与其自然栖息地完美地和谐共存的。 本句中nor放在句首，句子用了部分倒装语序，情态动词would提到了主语they之前。 具有否定意义的副词或短语never， not， nor， hardly， little， seldom， rarely， neither， scarcely， at no time， by no means， in no way， on no account 等置于句首时，句子用部分倒装语序，即将情态动词、连系动词 be 或助动词提到主语之前。 “两层级”学通用活句式 (1)通过“句式变换”弄明句式结构 ①I have never stopped in my pursuit of this purpose. →_____________________ in my pursuit of this purpose. ②We had hardly left the dormitory the next morning when we realized we had left our map in the room. → _____________________________ the next morning when we realized we had left our map in the room. Never have I stopped Hardly had we left the dormitory ③It was this unique experience that made me understand whatever difficulty we are faced with， we should by no means give up our hope. →It was this unique experience that made me understand whatever difficulty we are faced with， __________________________ ____________. by no means should we give up our hope (2)通过“句式仿写”做到熟练运用 ④(2023·新高考Ⅰ卷写作)我从没料到我能在这次写作比赛中获得一等奖。 _____________________________________________ in the writing contest. ⑤不论做什么，都要尽力而为，绝不能半途而废。 Whatever you do， do with your might and __________________ ___________________.(account) Never had I expected that I could win the first prize on no account should you give up halfway 04 随堂融通训练 根据课文内容，在空白处填入1个适当的单词或括号内单词的正确形式。 On Macquarie Island， the green grass and bare rock of its landscape contrast dramatically， giving it a wild and natural ①________ (beautiful)．However， in 1810 when humans arrived on the island， they ② ____________ (unknowing) brought rats and mice.These small animals ate the birds' eggs and attacked baby birds.Cats were brought to the island to control the rats and mice.Unfortunately， the cats subsequently developed an appetite ③ ____ the birds， too. beauty unknowingly for Meanwhile， rabbits ④ _______________ (introduce) to the island as a source of food for humans.The exploding rabbit population provided plentiful food for the cats.As ⑤__ result， parakeets， once large in number and native to the island， died out in 1891. were introduced a In the 1970s， to remove all the rabbits from the island， a virus ⑥____________ (release) onto the island， leading to more birds being killed by the cats indirectly.The last cat there was caught in 2000.With the departure of the cats from the island， the mouse and rat population ⑦ ________ (start) to increase.Then， in 2006， the rabbits' digging caused some land to collapse， ⑧ ________ (kill) a substantial number of penguins. was released started killing So， I am here to participate in the programme ⑨ ________ (tackle) this very problem with my dogs.This intervention is a long， much-delayed ending to a sad story， ⑩ ____ we humans owe it to the island to give it a happy ending. to tackle but 05 课时跟踪检测 第Ⅰ卷　语言基础训练 (一)单词拼写(8分) (1)The police are connecting this ________ (事件) with last week's bombing. (2)He suffered from headaches and loss of __________ (胃口)． (3)Because of the earthquake， tourist numbers have dropped _____________ (显著地)． (4)She ______ (归因于) her good health to diet and exercise. incident appetite dramatically owed (5)This species has nearly died out because its _______ (栖息地) is being destroyed. (6)Some drivers disobey the traffic rules， causing traffic _______ (混乱)． (7)They had received no news of him since his __________ (离开) from the island. (8)Smoking __________ (大大增加) the risk of heart attacks and other health problems. habitat chaos departure multiplies Ⅱ.单句语法填空 (共6空，12分) (9)The policy had a _________ (drama) effect on the development of the local economy. (10)He was born in Shanghai where he ______________ (subsequent) practised as a lawyer until his retirement. (11)The number of independent firms in this country has decreased ______ 198 ___ 96 this year. (12)These statistics are important from an _________ (ecology) point of view. (13)It was a large _________ (explode) and the resulting damage was extensive. dramatic subsequently from to ecological explosion (三)选词填空(16分) in harmony with， turn out， out of control， once and for all， in turn， come up with， in consequence， be introduced to (14)No one could have foreseen things would _________ this way. (15)To our horror， the fire is burning ______________. (16)He soon found himself _______________ his new co-workers. turn out out of control in harmony with (17)She got up late， and ______________ she missed the meeting. (18)We'd better settle the matter ______________. (19)I _________________ the manager at the party last week. (20)We've been asked to ______________ some new ideas. (21)The students called out their names _________ on the first school day. in consequence once and for all was introduced to come up with in turn (四)完成句子(10分) (22)We've discovered who the thief was， and it seems we ______ _______________.(owe) 我们已经查明了小偷是谁，看来我们应该向你道歉。 (23)He confidently forecast a big increase in sales， and ________ ___________________.(turn out) 他自信地预测销量会大幅增长，结果证明他是对的。 owe you an apology it turned out that he was right (24)I have never seen the film before. ____________ (nor) 我以前从未看过这部电影。他也没有看过。 (25)At times， he _________________________________________ _________. (feel it＋adj.＋to do sth.) 有时，他感到很难习惯早起。 (26)The earth， _____________ ， moves round the sun. (as引导的定语从句) 正如我们所知，地球绕着太阳转。 Nor has he. feels it difficult to accustom himself to getting up early as we know 第Ⅱ卷　语篇综合训练 (一)阅读理解 The Sabi Sands Game Reserve in South Africa is one of the richest wildlife regions in the African continent.Over 200 species of mammals and 350 different birds can be found in its vast plains，grasslands and forests. I spoke to Michael Rattray，chairman of the Sabi Sands management committee，about the management policies.“If in a thousand years' time the reserve is still a wonderful habitat for wildlife，then we will have succeeded in our mission.Various measures are being put in place.These include dealing with the problem of erosion.In 1996 we had abnormally high rainfall.This could have been absolutely destructive.However，we have successfully fought erosion using gabion stretchers，which are wire baskets filled with rocks.We have also used a lot of old aerial photographs， which have helped us return the land to its earlier state.This meant recreating open grassland areas to attract different types of animals，” he said. Apart from these measures，the reserve employs a wide range of local workers.Building staff accommodation of any sort would make a big impact on the environment and would go against the aim of keeping the reserve as natural as possible.Instead，transport is provided so employees can live a normal life with their families outside the area，and the human impact is kept to a minimum. Visitors to the reserve spend about six hours a day in open vehicles，observing wildlife on game drives.They are accompanied by a ranger (护林员) and a local tracker.I shall never forget the moment on a game drive when a cheetah (猎豹) with her five cubs was pointed out to me.She was lying in a sea of long yellow grass， her markings almost invisible.We got close enough to hear her purr. The Sabi Sands Game Reserve is a place where animals have no fear of humans.It is impossible to quantify the benefits of spending time in such an environment. 语篇解读：本文是一篇说明文。文章介绍了南非的Sabi Sands野生动物保护区，这是非洲大陆物种最丰富的野生动物保护区之一。 1．What helped solve the problem of erosion？ A．The low rainfall. B．Gabion stretchers. C．Empty baskets. D．Aerial photographs. √ 解析：细节理解题。根据文章第二段中的“However，we have successfully fought erosion using gabion stretchers”可知，B项正确。 2．What can we know about visitors to the reserve？ A．They can walk to the open fields. B．They must have very good eyesight. C．They cannot go around the reserve alone. D．They have two ways to reach the reserve. √ 解析：细节理解题。根据倒数第二段中的“They are accompanied by a ranger (护林员) and a local tracker.”可知，参观者需有工作人员陪同。 3．How did the author feel when he visited the reserve？ A．Disappointed.　　　　 B．Amazed. C．Frightened. D．Moved. √ 解析：推理判断题。根据最后两段可知，在Sabi Sands野生动物保护区的经历令作者难以忘怀，因为这个保护区的一切令作者大为惊叹。 4．What would be the best title for the text？ A．An introduction to the Sabi Sands Game Reserve B．The importance of protecting wildlife C．Some advice on visiting the Sabi Sands Game Reserve D．The Sabi Sands Game Reserve — the biggest wildlife region √ 解析：标题归纳题。本文主要介绍了南非的Sabi Sands 野生动物保护区。 (二)完形填空 I am so grateful for the 21-Day Eco challenge hosted by a conservation website.Taking care of our sweet Mother Earth has always been _____ to me in my life and I have taken steps in my everyday life to recycle， reuse， think about ways to preserve， etc.However， this _____ awoke me even more. 5 6 Our Scholars Together community has _____ more than we have before in terms of recycling， using our own china cups and metal water bottles when we go out， not buying things in plastic and having green lunches more _____ ， not occasionally， but the biggest change we made was setting a _____ of Zero Waste. 7 8 9 We set up more boxes and bins for paper that we could _____ again， and recycled every sheet of used-on-both-sides paper， plastics， cans， etc.We also _____ all of our food we cooked or bought， _____ throwing some away.We really made it into a challenge.Each day we all _____ how little could be in our dustbins.I realized that I had been throwing paper away that could be used on the other side or could be recycled， and now I am looking everywhere for how things can be used more _____ until recycling time. 10 11 12 13 14 The videos offered by the website have been so instructive and _____ for us all.I don't want the Eco challenge to end.We will continue to do our part and _____ the news to our family and friends.Next week we are trying some _____ in our local sandwich and sub shops where the kids like to go to see if we can _____ our own containers in， rather than having them put in bags.It is cool to see how the _____ spreads.Thank you the website for providing the community with daily support and great researched videos and information. 15 16 17 18 19 语篇解读：本文是一篇记叙文。文章讲述了作者参加了一个21天的生态挑战，在日常生活中尽量不制造垃圾。活动结束后，作者更深刻地意识到环保的重要性。 5．A.abstract　　　　　　 B．vital C．ambiguous D．curious 解析：根据下文中的“taken steps in my everyday life to recycle， reuse， think about ways to preserve”可知，照顾好我们可爱的“地球母亲”这件事在“我”生命中一直是至关重要的。 √ 6．A.challenge 　 B．journey C．adventure D．lifestyle √ 解析：根据上文中的“I am so grateful for the 21-Day Eco challenge”可知，这种挑战更进一步地唤醒了“我”。challenge在此处为原词复现。 7．A.abandoned 　 B．rejected C．depended on D．taken on √ 解析：根据下文“more than we have before in terms of recycling”可知，Scholars Together社区在回收利用方面要比以往承担的事情要多：当我们外出时，使用陶瓷杯子和金属杯子，不买塑料制品，坚持吃环保午餐。 8．A.smoothly 　 B．consistently C．formally D．casually 解析：根据下文“Zero Waste”可知， “零垃圾”是一个目标。 9．A.password 　 B．budget C．suggestion D．goal 解析：根据下文中的“not occasionally”可知，此处是说 “一贯地”。 √ √ 10．A.create 　 B．find C．use D．put √ 解析：根据第一段中的“in my everyday life to recycle， reuse”可知，“我们”放置了更多的盒子和垃圾箱来收集可以再次使用的纸。 11．A.ate 　 B．sold C．rid D．made √ 解析：根据句间逻辑关系可知，上下文构成转折关系，故选B。 12．A.apart from 　 B．instead of C．regardless of D．but for 解析：根据文章首句和第二段尾句可知，作者参加了一项“零浪费”挑战，所以作者他们会把自己烹饪的或购买的食物都吃掉。 √ 13．A.saw 　 B．admitted C．overcame D．debated √ 解析：根据上文中的“We really made it into a challenge.”可知，“我们”的确把这件事当成一个挑战，因此“我们”每天都看到了“我们”产生的垃圾是多么少。 14．A.easily 　 B．passively C．conveniently D．effectively √ 解析：根据上文“I realized ... things can be used more”可知，“我”意识到以前扔掉的纸张本可以得到更充分的利用的，因此现在“我”到处寻找一些东西，高效地使用它们，直到它们不能使用为止。 15．A.meaningless 　 B．useful C．brief D．funny √ 解析：根据上文“The videos offered by the website have been so instructive”可知，这些视频对“我们”所有人来说既有教育意义又有用。 16．A.hide 　 B．delete C．enjoy D．spread √ 解析：根据下文“the news to our family and friends”可知，“我们”继续做好“我们”该做的部分并传播这个消息，让家人和朋友都知道。 17．A.dreams 　 B．wonders C．experiments D．hopes √ 解析：根据“trying some ____________ in our local sandwich and sub shops”可知，下个星期“我们”打算去当地孩子们喜欢的三明治商店和地铁处的商店做一些试验。 18．A.give 　 B．bring C．get D．turn √ 解析：根据“It is cool to see how the ____________spreads.”可知，看到人们的环保意识如何传播是很酷的！ 19．A.awareness 　 B．donations C．mottoes D．fantasy 解析：根据下文“our own containers in， rather than having them put in bags”可知，看看是否可以把“我们”自己携带的容器带进去，而不是打包食物。 √ (三)语法填空(15分) High on the Qinghai-Tibet Plateau _____ (lie) China's “water tower” Sanjiangyuan.It is home to the headwaters of China's three rivers：the Yellow River， Yangtze River， and Lancang River.It is the three rivers _____ provide water for about half the population of China.However， human activities are putting this ecosystem _____ risk.Hopefully， though， we can repair this damage.The Chinese government decided to set up Sanjiangyuan National Park in Qinghai Province.The park， officially _____ (establish) in 2021， has increased the area's green coverage and attracted more wildlife. 20 21 22 23 The local government has also made great effort to improve biological diversity.The success of Sanjiangyuan will mark the start of a ____ (green) future. With Sanjiangyuan ____ (take) the lead， nine other regions in China ____ (choose) by a field conservation station to carry out projects over the past three years， ____ will form a national park system together.The idea of a national park system is still new in China， but ____ (it) realization is urgent.After all， building an ecological civilization bears great ____ (important) in the development and progress of human civilization. 24 25 26 27 28 29 语篇解读：本文是一篇说明文。文章主要讲述了在三江源生态保护区的带动下，中国正在进行全国范围的生态保护系统的建设，这将对人类文明的发展和进步有着重要的意义。 20．lies　考查时态和主谓一致。本句是倒装句，主语为China's “water tower” Sanjiangyuan。空处所填为本句的谓语动词，描述客观事实应用一般现在时，且主语Sanjiangyuan为第三人称单数，故填lies。 21．that　考查强调句型。本句使用了强调句型，对主语the three rivers进行强调。 22．at　考查介词。put sth.at risk为固定搭配，表示“使某事物处于危险之中”。 23．established　考查非谓语动词。句中谓语动词为has increased，空处应用非谓语动词形式。establish与The park之间为被动关系，故用过去分词作后置定语。 24．greener　考查形容词比较级。此处强调与现状相比，未来更加“绿色化”，因此空处应用形容词比较级。 25．taking　考查非谓语动词。空处为with复合结构，take与Sanjiangyuan之间为主动关系，故用现在分词作宾语补足语。 26．have been chosen　考查时态、语态和主谓一致。根据时间状语over the past three years可知，应用现在完成时；又因动词choose与主语nine other regions之间为被动关系且主语为复数形式，故用现在完成时的被动语态。 27．which　考查定语从句。空处引导非限制性定语从句，且在从句中作主语，先行词为nine other regions，故填which。 28．its　考查物主代词。空处应用形容词性物主代词，修饰后面的名词realization。 29．importance　考查名词。由空前的形容词great可知，此处应填名词形式，important的名词形式为importance。 (四)主题微写作(12分) 用本课所学的单词和短语补全下面关于保护生态的短文。 Ecology， the delicate balance of our planet， is currently at risk. A large number of species are in danger ① _________________________ _________ (因为它们的栖息地正遭到破坏). For instance， the Amazon rainforest，home to countless creatures，is shrinking fast due to deforestation. This has led to ② _______________ (急剧减少) in biodiversity. as their habitats are being destroyed a sharp decrease If we continue to ignore the importance of ③______________________ ______ (与自然和谐相处)， we will face severe consequences.Extreme weather events， like floods and droughts， are becoming more frequent. To safeguard our future， ④___________________________ (我们必须立即行动起来). We can start by reducing waste， protecting forests， and ⑤ _____________________________ (支持可持续发展的做法). Only in this way can we hope to ⑥______________________ _________________ (恢复并维持生态平衡). living in harmony with nature we must take immediate action supporting sustainable practices restore and maintain the ecological balance 本课结束 更多精彩内容请登录：www.zghkt.cn $