Unit 2 Wildlife Protection Discovering Useful Structures & Listening and Talking 分层课后练习-2026-2027学年高中英语人教版必修第二册

**基本信息** 本练习通过A级基础巩固与B级能力提升的分层设计，构建从词汇语法到语篇应用的知识巩固路径，适配高中英语新授课语言能力与思维品质培养需求。 **分层设计** |层次|知识覆盖|设计特色| |----|----------|----------| |A级|基础词汇（单词拼写）、语法（单句语法填空）、基础写作（单句写作）|聚焦单一知识点直接考查，如单词拼写强化核心词汇（如kangaroos、insects），语法填空专项训练现在进行时被动语态| |B级|语篇理解（阅读理解、七选五）、综合运用（完形填空、语篇填空）|依托真实情境实现综合应用，如阅读理解选取动物行为研究文本培养信息获取能力，完形填空通过大象保护故事渗透文化意识与思维品质|

Discovering Useful Structures & Listening and Talking A级必备知识基础练 Ⅰ.单词拼写 1.K　　　　　　 are iconic Australian animals that hop across the outback.  2.Let’s r　　　　　　 energy consumption by turning off lights when they are not in use.  3.The 　　　　　　(临近的地方) park is a great place for children to play safely.  4.As is well known,　　　　　　(昆虫) play a crucial role in pollinating flowers and crops.  5.It’s important to drive carefully in areas where 　　　　　　(鹿) are known to cross roads.  Ⅱ.单句语法填空 1.Now young people 　　　　　　　　　　　　(encourage) to think carefully about their future plans by their parents and teachers.  2.The bridge 　　　　　　　　　　　　(repair) at present,so we will have to choose another route.  3.According to reports,nowadays sharks 　　　　　　　　　　　　　　(kill) at a surprising rate worldwide per year.  4.You can’t borrow any books from the university library because it 　　　　　　　　　　　　(decorate) these days.  5.　　　　　 the babies 　　　　　　　　　(take) care of by the only nurse now?  Ⅲ.单句写作 1.由于栖息地的丧失,许多野生动物正在艰难求生。(due to) 　　　　　　　　　　　　　　　　,many wild animals are struggling to survive.  2.科学家们正在寻找安全的新栖息地来迁移受影响的野生动物。(search for) Scientists 　　　　　　　　　　　　　　　　　　　　　　　　to relocate the affected wildlife.  3.这些温和巨兽的种群数量已减少到仅剩几百头。(reduce) The population of these gentle giants 　　　　　　　　　　　　　　　　　　a few hundred individuals.  4.我们保护它们的迁徙路线,以便子孙后代能见证它们的旅程。(so that) We protect their migration routes 　　　　　　　　　　　　　　　　　　　　　　　　　　　　.  5.这些古老的森林因其令人难以置信的生物多样性而正受到保护。(现在进行时的被动语态) These ancient forests 　　　　　　　　　　　　for their incredible biodiversity.  B级能力素养提升练 Ⅳ.阅读理解 A (2026广东深圳高一上期末) Making new friends is not easy—even for smart animals that can talk well.Recently,researchers at the University of Cincinnati carried out an interesting study.They focused on how monk parakeets(鹦鹉) make friends with birds they don’t know.The study was of great significance as its purpose was to understand the process and timing of how monk parakeets form social connections with unfamiliar birds. The researchers put groups of monk parakeets in a big cage where they could fly.Some of the birds had never met before.The team carefully observed the birds’ behavior,focusing on how they acted with each other.They paid special attention to how close the birds allowed each other to get and if they showed friendly behaviors like cleaning each other’s feathers or sharing space.A total of 179 interactions were recorded to see how new friendships were formed in the birds. The study showed that monk parakeets were cautious when meeting strange birds.Instead of rushing to make contact,they moved slowly toward each other,watching for any signs of danger.For example,they would stop and look around carefully before taking a few more steps.Over time,as they got used to seeing each other and felt more comfortable,they started showing behaviors like cleaning each other’s feathers,sitting together,and sharing food or even interacting closely.Some pairs would gently clean each other’s feathers,which is a clear sign of trust. These findings help us better understand how animals make friends and also give us some ideas about human social behaviors.By studying how parakeets take time to build trust,researchers can use this knowledge to improve social relationships in both animals and humans.This research is a good reminder that in both the animal and human worlds,trust grows slowly,and relationships need time to develop. 1.What was the purpose of the study? A.How monk parakeets understand their friends. B.How monk parakeets communicate with partners. C.How monk parakeets make friends with strangers. D.How monk parakeets know when to talk with birds. 2.What does paragraph 2 mainly describe about the research? A.Its usual difficulties. B.Its research process. C.Its research method. D.Its scientific evidence. 3.How did monk parakeets behave with unfamiliar birds? A.They cleaned each other carefully. B.They approached them cautiously. C.They rushed to meet them eagerly. D.They engaged with them cheerfully. 4.What is the potential application of the findings? A.To guide trust-building. B.To solve social problems. C.To conduct animal studies. D.To improve social connections. B (2026陕西宝鸡高一上期末) How do you study unexplored areas of the ocean and identify critical habitat for an endangered species?You include the animal for study in the scientific process.Australian scientists have formulated a clever solution to study hard-to-reach areas of the seafloor:They attached(把……固定在) cameras to sea lions.The resulting videos have given scientists new information about the endangered sea lions,and also about the seafloor. Australian sea lions are endangered and have seen population declines of over sixty percent in the last forty years.Researchers from the University of Adelaide fitted endangered Australian sea lions with cameras and tracking devices(跟踪仪器) to better understand where they spent their time and how they used different areas of the seafloor to gather food. The sea lions could cover large areas of the ocean floor quickly,and dive deeply to places humans can’t reach.The researchers used eight healthy females from two different groups of sea lions.They chose females because they would soon return to land to feed their young pups.That meant the scientists could easily get the cameras back. The eight sea lions traveled about 560 kilometers underwater,diving as deep as 110 meters below the surface.In all,the animals collected 89 hours of videos,letting the researchers see exactly what the animals saw. After reviewing the videos,researchers were surprised to learn the sea lions hunt for food in six distinct seafloor habitats and different sea lions like different kinds of food.The videos gave the team a good idea of the kinds of plants and animals living in each of those environments. Using AI and the information from the videos,the researchers came up with a tool that can predict(预测) what the seafloor is like.If the AI tool is given the sea’s temperature at the surface,and how far the location is from land,it can guess what the ocean floor will be like.And it’s correct 98% of the time. 5.What does the underlined word “formulated” in paragraph 1 mean? A.Made up. B.Set down. C.Worked out. D.Taken over. 6.Why did the researchers choose females? A.They could offer feedback timely. B.They could travel a long distance. C.They could provide more accurate(精确的) information. D.They could collect larger amount of information. 7.What is the AI tool mentioned in the last paragraph used for? A.Working out the traveling distance. B.Monitoring the ocean temperatures. C.Gathering information about sea lions. D.Making predictions about the seafloor. 8.What would be the most suitable title for the text? A.Scientists Discover Ways to Study Sea Lions B.Sea Lions Are Found in Unexplored Areas C.Habitats for Sea Lions Are Being Observed D.Endangered Sea Lions Help Study the Seafloor Ⅴ.七选五 A growing number of studies show that warming temperatures are increasing death in creatures ranging from birds in the Mojave Desert to bumblebees in North America.Researchers warn that heat stress could become a major factor in future extinction (灭绝) of wildlife.　1　  It is important to have plenty of water for wildlife to drink and bathe in.　2　 But even heat-loving creatures can only survive (幸存) if they can find enough water.A shallow dish of water will benefit a wide variety of wildlife.If you want to do more,you can create a tiny pond.It’s possible to make a simple one out of an old washing-up bowl.  　3　 A pile of wood in a shady corner will offer places for insects to hide.Heatwaves are not the time to tidy your garden either — leave any plants uncut.They’ll provide shelter and food if they’ve gone to seed.  Food is important.You can grow plants that can continually provide quality food sources.Artificial (人工的) feeding with feeders can also be a good choice.　4　 Keep food dry and clean any feeders that animals come in direct contact with to reduce disease.  Reducing the heat can be another effective way.Compared to plants,concrete (混凝土) surfaces take in more heat in the day — about more than 20℃ hotter than grass.　5　 Besides,in the shade of trees,surface temperatures can be reduced by around 10℃,so planting a tree in your garden will cool both you and wildlife down.  A.Hot weather can be great for some creatures. B.So why not replace those surfaces with plants? C.Be sure what you are offering is high-quality and easy to eat. D.Fortunately,you can give a helping hand with a few easy steps. E.You can also help animals by offering them somewhere cool to rest. F.How can you make your local area become more friendly to animals? G.Follow these simple tips to make sure you’re keeping animals properly. Ⅵ.完形填空 (2026河北冀州高一上期末) After nearly three decades of forced performance in a traveling circus(马戏团),a 34-year-old Asian elephant named Bo finally arrived at his new forever home at an elephant reserve.He is now 　1　 to go where he wants on a 7-acre habitat,eat when he 　2　,and walk or play as much as he likes.  Located in southwestern Georgia,the reserve has just the right climate to 　3　 Bo and up to nine more captive-born(圈养出生的) elephants to live outside year-round and 　4　 their “elephantness”. As a captive elephant,Bo spent most of his life on a one-acre 　5　 in Missouri,when not 　6　 with the circus.  Although his 　7　 will be limited to the 7-acre habitat for a few months of adaptation,he then will be 　8　 to live in a 100-acre area of grassland,woods,and ponds.Retiring Bo,a(n) 　9　 elephant in the prime of his life,to a shelter sets a new precedent(先例) for how circus elephants can 　10　 their lives.For the first time in his life,he can do as he pleases.  In the weeks leading up to Bo’s 　11　,people in the reserve worked to 　12　 the fence(围栏).As a male elephant in the prime of his life,Bo is 　13　 larger and stronger.  Luckily,Bo has 　14　 the suffering of circus life,but many other elephants are not as 　15　.  1.A.proud B.busy C.afraid D.free 2.A.walks B.wishes C.rests D.agrees 3.A.enable B.force C.invite D.cause 4.A.remove B.reduce C.regain D.recall 5.A.garden B.area C.stage D.reserve 6.A.exchanging B.dealing C.living D.touring 7.A.movements B.achievements C.purposes D.memories 8.A.limited B.believed C.allowed D.found 9.A.working B.existing C.promising D.performing 10.A.slow down B.come to C.live out D.think about 11.A.arrival B.departure C.survival D.expectation 12.A.break B.strengthen C.paint D.jump 13.A.reasonably B.necessarily C.considerably D.certainly 14.A.quit B.experienced C.lessened D.explored 15.A.strong B.lucky C.clever D.large Ⅶ.语篇填空 (2026湖北孝感高一上期末) Cats and dogs are known for 1.　　　　　　(have) a complicated relationship.However,a smiley dog and a grumpy(脾气暴躁的) cat have become stars on the Internet due to their 2.　　　　　　(friend) relationship.  Casper—a six-year-old Samoyed dog—loves to have his Persian cat brother,Romeo,by his side.And,despite his less than happy 3.　　　　　　(appear),two-year-old Romeo enjoys it too.The fluffy(毛茸茸) white brothers both live in Christchurch,with their 29-year-old owner Rinsa Li.  Casper and Romeo have gained quite the social media attention due to their expressive faces on their joint Internet account,4.　　　　　　 documents their day-to-day life.  Rinsa said,“It’s so humble that a cat and a dog’s relationship can bring so many smiles across the world.I think people really relate to Casper and Romeo’s different personalities and share this with their 5.　　　　　　(love) ones.People describe Romeo’s expression 6.　　　　　　 ‘before coffee’ while Casper’s as ‘after coffee’.”  Rinsa,a photographer,always wanted to own 7. cat—but wasn’t sure 8.　　　　　 Casper would react to a new family member.However,after taking Casper to see a friend’s kitty,Rinsa 9.(remind) that he would be gentle and sweet.She said,“After that,all my doubt disappeared 10.　　　　　　(immediate),and I decided to start looking for my dream cat—and I found Romeo.”  知识积累卡 一、重点单词 1.behave v.　　　　　　　　→behavior n.　　　　　　  2.interact v.　　　　　　→interaction n.　　　　　　　　　　　　  3.endanger n.　　　　　　　　　→endangered adj.　　　　　　  4.environment n.　　　　　　→environmental adj.　　　　　　  5.complicated adj.　　　　　  二、熟词生义 1.form　本文义:v. 　　　　　　　　　其他义:n.　　　　　　　　  2.review　本文义:v.　　　　　　　　　其他义:v.　　　　　　　　  三、词块速记 1.carry out 　　　　　　  2.focus on 　　　　　　  3.be of great significance 　　　　　　  4.pay special attention to 　　　　　　  5.come up with 　　　　　　  四、经典句式背诵 1.By studying how parakeets take time to build trust,researchers can use this knowledge to improve social relationships in both animals and humans.(by doing sth表示方式) 句意: 　　　　　　　　　　　　　　　　　　　　　　　　 2.Located in southwestern Georgia,the reserve has just the right climate to enable Bo and up to nine more captive-born(圈养出生的) elephants to live outside year-round and regain their “elephantness”.(过去分词短语作状语) 句意:  　　　　　　　　　　　　　　　　　　　　　　　　 五、长难句分析 Researchers from the University of Adelaide fitted endangered Australian sea lions with cameras and tracking devices(跟踪仪器) to better understand where they spent their time and how they used different areas of the seafloor to gather food. 分析:本句是一个主从复合句。to better understand...是动词不定式短语作　　　　　　状语,where和how引导的都是　　　　　　从句。  句意:  　　　　　　　　　　　　　　　　　　　　　　　　 参考答案 Ⅰ.1.Kangaroos　2.reduce　3.neighbourhood　4.insects　5.deer Ⅱ.1.are being encouraged　2.is being repaired　3.are being killed　4.is being decorated　5.Are;being taken Ⅲ.1.Due to their loss of habitats　2.are searching for safe new habitats　3.has been reduced to　4.so that future generations can witness their journey　5.are being preserved Ⅳ.【语篇导读】本文是一篇说明文。文章介绍了辛辛那提大学关于和尚鹦鹉如何与陌生鸟类交朋友的研究,阐述了研究目的、实验过程、鹦鹉的谨慎交友行为以及该研究对改善动物和人类社交关系的潜在意义。 1.C　细节理解题。根据第一段中“They focused on how monk parakeets make friends with birds they don’t know...how monk parakeets form social connections with unfamiliar birds.”可知,研究的核心目的是探究和尚鹦鹉如何与陌生鸟类建立友谊,故选C项。 2.B　主旨大意题。第二段主要描述了研究人员将鹦鹉分组置于大笼中、仔细观察其行为、记录179次互动等具体实施步骤,完整呈现了研究的开展过程,故选B项。 3.B　细节理解题。根据第三段中“The study showed that monk parakeets were cautious when meeting strange birds.Instead of rushing to make contact,they moved slowly toward each other,watching for any signs of danger.”可知,鹦鹉面对陌生同类时表现出谨慎接近的行为特征,故选B项。 4.D　推理判断题。根据最后一段中“researchers can use this knowledge to improve social relationships in both animals and humans”可知,该研究成果可用于改善动物与人类的社交关系,故选D项。 【语篇导读】本文是一篇说明文。文章主要介绍了澳大利亚科学家通过在濒危的澳大利亚海狮身上安装摄像头和跟踪设备,利用海狮的活动来研究人类难以到达的海底区域,并基于收集的数据开发出可预测海底环境的AI工具。 5.C　词义猜测题。根据第一段中“Australian scientists have formulated a clever solution to study hard-to-reach areas of the seafloor:They attached cameras to sea lions.”可知,澳大利亚科学家想出了在海狮身上安装摄像头这一巧妙方案来研究海底区域,因此“formulated”意为“想出,制定出”,与“worked out”意思相近,故选C项。 6.A　细节理解题。根据第三段中“They chose females because they would soon return to land to feed their young pups.That meant the scientists could easily get the cameras back.”可知,选择雌性海狮是因为它们会很快返回陆地哺育幼崽,这样科学家便能及时取回摄像头,故选A项。 7.D　细节理解题。根据最后一段中“Using AI and the information from the videos,the researchers came up with a tool that can predict what the seafloor is like.”可知,该AI工具用于预测海底状况,故选D项。 8.D　主旨大意题。通读全文,尤其是根据第一段中“Australian scientists have formulated a clever solution to study hard-to-reach areas of the seafloor:They attached cameras to sea lions.”可知,文章核心内容是科学家利用濒危海狮来研究海底区域,因此D项最能概括文章主旨。 Ⅴ.【语篇导读】本文是一篇说明文。文章主要介绍了四种帮助野生动物在酷暑中生存的方法。 1.D　根据上文“Researchers warn that heat stress could become a major factor in future extinction of wildlife.”与下文“It is important to have plenty of water for wildlife to drink and bathe in.”可知,D项“Fortunately,you can give a helping hand with a few easy steps.”既承接了上文野生动物面临的危机,又开启了下文介绍帮助野生动物的具体方法。 2.A　根据下文的“But even heat-loving creatures can only survive if they can find enough water.”可知,A项“Hot weather can be great for some creatures.”与下文构成转折关系。 3.E　通读本段可知,本段主要讲的是给动物提供乘凉的场所,E项“You can also help animals by offering them somewhere cool to rest.”可作为主题句。 4.C　根据下文“Keep food dry and clean any feeders that animals come in direct contact with to reduce disease.”可知,空处应与用喂食器人工喂养动物的注意事项有关。C项“Be sure what you are offering is high-quality and easy to eat.”符合语境。 5.B　根据下文“so planting a tree in your garden will cool both you and wildlife down”可知,B项“So why not replace those surfaces with plants?”可引出下文。 Ⅵ.【语篇导读】本文是一篇记叙文。文章讲述了一头名叫Bo的亚洲象在马戏团被迫表演近30年后,终于抵达佐治亚州大象保护区开始新生活的故事,展现了它从禁锢到自由、重获“大象本色”的转变过程。 1.D　根据下文“go where he wants...eat when he...and walk or play as much as he likes”可知,Bo现在可以随心所欲地活动、进食和玩耍,因此是“自由的”(free)。 2.B　根据上文“go where he wants”和下文“walk or play as much as he likes”可知,此处与“想吃什么就吃什么”结构平行,表示“想(wishes)吃的时候就吃”。 3.A　根据下文“Bo and up to nine more captive-born elephants to live outside year-round”可知,适宜的气候使大象能够全年户外生活,“enable sb to do sth”表示“使某人能够做某事”。 4.C　根据上文“captive-born”和“their ‘elephantness’”可知,圈养出生的大象在保护区可以重新获得(regain)原本的天性。 5.B　根据上文“a 7-acre habitat”和“a one-acre”对比可知,此处指Bo此前被困在一英亩的狭小区域内(area)。 6.D　根据上文“forced performance in a traveling circus”可知,此处指Bo不在马戏团巡回演出时(touring)就被关在小区域内。 7.A　根据下文“limited to the 7-acre habitat”可知,此处指Bo的活动范围(movements)在适应期内受限。 8.C　根据上文“will be limited”和转折词“then”可知,适应期后Bo将被允许(allowed)进入更大的生活区域。 9.D　根据上文“forced performance in a traveling circus”可知,Bo是一头用于表演(performing)的大象。 10.C　根据下文“For the first time in his life,he can do as he pleases”可知,这为马戏团大象如何度过余生树立了先例,“live out one’s life”表示“度过余生”。 11.A　根据下文“people in the reserve worked to 　　　the fence”可知,人们在Bo到达(arrival)之前加固围栏。  12.B　根据下文“As a male elephant...Bo is 　　　larger and stronger”可知,因Bo体型庞大力量强,人们需要加固(strengthen)围栏。  13.C　根据上文“male elephant in the prime of his life”和下文“larger and stronger”可知,正值壮年的公象体型相当(considerably)高大强壮。 14.A　根据上文“Luckily”和下文“the suffering of circus life”可知,Bo幸运地摆脱了(quit)马戏团的苦难生活。 15.B　根据上文“Luckily”和转折词“but”可知,其他一些大象没有Bo这么幸运(lucky),仍在受苦。 Ⅶ.【语篇导读】本文是一篇记叙文。文章主要介绍了一只爱笑的萨摩耶犬Casper和一只脾气暴躁的波斯猫Romeo之间的友好关系,以及它们因表情反差而在网络上走红的故事。 1.having　考查非谓语动词。for是介词,后接动词时需用动词-ing形式,故填having。 2.friendly　考查形容词。根据空后“relationship”可知,此处需用形容词修饰名词,表示“友好的”关系,故填friendly。 3.appearance　考查名词。根据空前“his less than happy”可知,形容词性物主代词和形容词后需接名词,表示“外表”,故填appearance。 4.which　考查定语从句。根据空前“joint Internet account”和空后“documents their day-to-day life”可知,此处引导非限制性定语从句,先行词为物且在从句中作主语,故填which。 5.loved　考查形容词。根据空后“ones”可知,此处需用形容词修饰代词,表示“所爱的”人,故填loved。 6.as　考查介词。根据空前“describe Romeo’s expression”和空后“before coffee”可知,此处为固定搭配“describe...as...”,表示“把……描述为……”。 7.a　考查冠词。根据空后“cat”可知,此处表示泛指“一只猫”,且cat以辅音音素开头,故填a。 8.how　考查宾语从句。根据空前“wasn’t sure”和空后“Casper would react”可知,此处引导宾语从句,从句中缺少方式状语,表示“如何”反应,故填how。 9.was reminded　考查被动语态。根据主语“Rinsa”与“remind”之间的被动关系,以及上下文的一般过去时可知,此处需用一般过去时的被动语态,故填was reminded。 10.immediately　考查副词。根据空前“disappeared”可知,此处需用副词修饰动词,表示“立刻”消失,故填immediately。 知识积累卡 一、1.表现　行为　2.互动　互动;相互作用　3.使……濒危　濒危的　4.环境　环境的　5.复杂的 二、1.形成;构成　形式;形态　2.仔细查看　复习;回顾 三、1.实施;执行　2.专注于　3.意义重大　4.特别注意　5.提出;想出 四、1.通过研究鹦鹉如何花时间建立信任,研究人员可以利用这些知识来改善动物和人类的社交关系。 2.该保护区位于佐治亚州西南部,拥有适宜的气候,能让波和其他最多九头圈养出生的大象实现全年户外生活,并重新恢复其“大象的天性”。 五、目的　宾语 阿德莱德大学的研究人员为濒危的澳大利亚海狮安装了摄像头和跟踪仪器,以便更好地了解它们在哪里活动,以及如何利用海底的不同区域来觅食。 1 学科网（北京）股份有限公司 $