Unit 5 A delicate World-阶段练习-2026-2027学年高中英语外研版选择性必修第二册

**基本信息** 以“基础-提升”分层训练构建语言能力培养体系，融合词汇语法基础与语篇综合应用，通过题型专项突破提升语言理解与表达能力。 **专项设计** |模块|题量/典例|方法提炼|知识逻辑| |----|-----------|----------|----------| |品句填词|10题|语境猜词法|从单元核心词汇到词性转换，夯实语言基础| |选词填空|6题|固定搭配辨析|短语应用与语境匹配，提升语言运用准确性| |单元语法|5题|语法规则应用|聚焦it用法等重点语法，强化知识迁移能力| |追型逐句|5题|句型结构分析|从基础句型到复杂句式，培养语言表达逻辑| |阅读理解|8题|题型分类解法|细节理解、主旨归纳等专项突破，提升语篇思维品质| |七选五|5题|语篇衔接技巧|上下文逻辑分析，强化信息整合能力| |完形填空|15题|语境词义辨析|通过情节发展理解词汇内涵，培养综合语言运用能力| |语法填空|10题|语法规则迁移|时态、语态等语法点系统训练，提升知识应用准确性|

Unit 5　A delicate World 基础练 Ⅰ.品句填词 1.We should follow the school rules to s　　　　　 a safe and peaceful learning environment for everyone.  2.We o　　　　　 our progress in study to the patience and guidance of our teachers and parents.  3.The 　　　　　　(巨大的) ocean and blue sky in the coastal city left an unforgettable impression on us during the school trip.  4.Eating too many snacks before meals is a bad habit that can easily ruin your 　　　　　　(食欲).  5.Protecting cultural 　　　　　　(遗产) is not only a responsibility but also a way to pass down our traditional values.  6.The sudden rain caused 　　　　　　(大混乱) at the school gate,with students rushing to find umbrellas or shelters.  7.The noise in the classroom 　　　　　　(减少) immediately when the teacher walked in with the exam papers.  8.The little cat got 　　　　　　(使困住) in the tree and waited anxiously for someone to come to its rescue.  9.We waved goodbye to our exchange student at the airport on the morning of his 　　　　　　(离开).  10.Cheers 　　　　　　(爆发) in the classroom when our class won first prize in the school sports meeting.  Ⅱ.选词填空 remove...from...,decrease from...to...,out of control,on behalf of,in return,coexist with... 1.　　　　　　　　　　　　 all the students,our monitor expressed sincere thanks to the volunteers for their help.  2.We helped our neighbors take care of their pets during the holiday,and 　　　　　　　　　　　,they sent us some homemade cookies.  3.It’s important for human beings to learn to 　　　　　　　　　　　　all living creatures to maintain ecological balance.  4.The teacher asked us to 　　　　　　the unnecessary words 　　　　　　our compositions to make them more concise.  5.The situation in the classroom was almost 　　　　　　　　　　　　when the teacher left for a short while.  6.The time we spent on group discussions 　　　　　　　　　　　　40 minutes　　　　　　 25 minutes due to the tight schedule.  Ⅲ.单元语法 As a high school student,I think it essential for me 1.　　　　　　(stick) to a regular study schedule every day.I find it no use 2.　　　　　　(stay) up late to cram for tests,for it only makes me tired the next day.I appreciate it 3.　　　　　　 my teachers give me personalized feedback on my essays.I consider 4.　　　　　　a waste of time scrolling through short videos mindlessly after class.I also hate 5.　　　　　　 when unexpected noises distract me while I’m focusing on my homework.  Ⅳ.追型逐句 1.他把所有业余时间都用来帮助别人,这使他在同学中很受欢迎。[动词-ing形式(短语)作结果状语] He devoted all his spare time to helping others,　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　.  2.在得到他真诚的帮助之前,我从未感到如此温暖和备受鼓舞。(否定副词位于句首引起的倒装句) 　　　　　　　　　　　　　　　　　　　　 before I received his sincere help.  3.我们一边沿着安静的乡间小路散步,一边愉快地聊着童年往事。(while引导时间状语从句) We chatted happily about our childhood 　　　　　　　　　　　　　　　　　　　　　. 4.与身边的人分享我们的快乐与善意是一件非常快乐的事。(It is+n.+to do sth.) 　　　　　　　　　　　　　　　　　　　　　　　　　　　　 with people around us. 5.老师讲的这个故事给了我一个关于人生与爱的宝贵教训。(过去分词作后置定语) The story 　　　　　　　　　　　　　　　　　　has taught me a valuable lesson about life and love.  提升练 Ⅴ.阅读理解 A (2026广西钦州高二期末) Every third Friday of May,we pause to recognize the fragile(易损的) existence of endangered species.We share the planet with countless animals,plants,and insects.Yet,many of them are disappearing right before our eyes.National Endangered Species Day urges us to take action before it’s too late. The day was established in 2006 by the US Congress to raise awareness about species in danger of dying out.But the issue goes back decades.Laws to protect endangered species have been around for over 40 years.Today,the urgency remains the same.Species are still disappearing,and their habitats are under threat. When the last of a species disappears,it’s gone forever.Endangered species are dangerously close to that fate(命运).Their numbers are so low that every birth counts,every death matters.Some remain in the thousands,others in the hundreds,and a few are down to mere tens. When a species disappears,it doesn’t go quietly.The loss greatly affects ecosystems.When a species disappears,its prey(被捕食者) populations explode.Plants die off,and animals lose their food source.The web of life is fragile,and every species has a role.Take pollinators(昆虫授粉),for instance.Bees,butterflies,and bats help plants reproduce.If they disappear,crops fail,and food chains fall apart. National Endangered Species Day reminds us that time is running out for many species.But the fate of these animals,plants,and insects isn’t set in stone.Organizations like the World Wildlife Federation and the Jane Goodall Institute work tirelessly to protect endangered species.They fund anti-poaching efforts,save injured animals,and restore habitats.Individuals can help too.Donate to wildlife organizations.Volunteer at local conservation centres.Adopt sustainable habits such as using less plastic.Every choice,no matter how small,can make a difference. Saving endangered species isn’t just about protecting animals.It’s about preserving ecosystems,supporting biodiversity,and ensuring a balanced,healthy planet for future generations.And that future starts with us. 1.What do we know about National Endangered Species Day? A.It was set up by the US Congress in 2006. B.It started to protect habitats 40 years ago. C.It is on the first Friday of every May. D.It makes species stop disappearing. 2.What does paragraph 4 focus on? A.Why pollinators are important to plants. B.How species loss harms ecosystems. C.What causes species to disappear quickly. D.Which animals help plants reproduce. 3.What can we infer from the text? A.Small choices have no influence on species. B.Only organizations can protect endangered species. C.Saving species helps keep the planet healthy. D.Endangered species’ fate can’t be changed. 4.What is the best title for the text? A.Endangered Species:Disappearing Quickly B.National Endangered Species Day:Act Now C.How to Protect Endangered Species Well D.Why So Many Species Are in Danger B (2026浙江衢州高二期末) Climate change is reshaping our world in unexpected ways,from rising temperatures to disrupted ecosystems.Now,scientists warn that melting polar ice caps are even affecting how we keep track of time. A recent study in Nature reveals that the rapid melting of polar ice is slowing Earth’s rotation(旋转).As meltwater flows into oceans,it collects around the equator,the imaginary circle dividing the earth into two equal parts.The planet gets slightly “fatter” there,which makes Earth turn slowly,much like an ice skater slowing down by stretching out her arms during a spin. A slower rotation means each day—the time for one full turn of Earth—gets a bit longer.As a result,the sun doesn’t rise or set exactly when we expect,which poses a critical challenge to global timekeeping systems. Modern life relies on ultra-precise synchronization(同步) across technologies.Financial markets,air traffic control,Internet servers,and communication networks depend on perfectly aligned clocks.Even a tiny timing error could trigger chaos.To address this,scientists propose introducing a negative leap second by 2029.This would make clocks jump from 23:59:58 straight to midnight,skipping 23:59:59,so our devices can match Earth’s actual rotation.Geophysicist Duncan Agnew from the Scripps Institution of Oceanography explained this in the Nature paper. However,this solution comes with risks.Unlike positive leap seconds(adding a second),which have been used since 1972,negative leap seconds have never been tested.Experts like physicist Judah Levine warn that software designed to handle time adjustments may fail.Past issues highlight the danger:In 2012,adding a leap second crashed airline booking systems,froze stock exchanges,and disrupted major websites like Reddit and LinkedIn. These events show how fragile our time-dependent world is,and climate change is making it even more challenging. 5.Which factor is responsible for Earth’s slower rotation? A.Ice mass gathering at the equator. B.Meltwater moving to the equator. C.Atmosphere thickening at the equator. D.Ocean currents intensifying near the equator. 6.What can be learned about the proposed “negative leap second”? A.It may cause system failures. B.It is a widely accepted time solution. C.It caused a major system crash in 2012. D.It has been successfully tested since 1972. 7.What is the author’s attitude toward the effects of climate change on timekeeping? A.Concerned.　　 B.Reserved. C.Optimistic. D.Doubtful. 8.Which of the following would be the best title for the passage? A.The History of Leap Seconds B.Risks in Adjusting Global Clocks C.Climate’s Surprising Test on Time D.Innovations in Timekeeping Technologies Ⅵ.七选五 (2026浙江台州高二期中) Unusual weather this summer has hurt many gardens in the United States.For many,the problem is too much rain.　1　 Do you still want to grow tomatoes or roses in that sunny place?It can be done.We will look at three ways you can correct the problem of too much water.  One way is to drain the water away to some lower location.The simplest way is with a ditch,or,if your garden is large,a few ditches.Ditches crossing your garden need not be unpleasant to look at or troublesome.Picture a garden in which flat stones line ditches and form bridges across ditches that cross paths.　2　 These waterways may look like a classic Persian garden.  　3　 Dig a ditch,as described above,then lay in black pipe that is about 10 centimeters across its width.Available at home and building stores,the pipe is made to bend easily,and the holes in it let in water.Cover the pipe with a piece of cloth that water can pass through to keep out dirt and a layer of small stones.　4　  A third way to give your plants more air is to raise them above the water.Trees and bushes can be planted on raised piles of soil,often called “beds”.The beds need to be wide enough to allow roots to spread.　5　 If you want a bigger plant,give its roots more room to grow.To make a raised bed,build a box at least 15 centimeters high of wood or stone.  A.Then place the soil. B.You have a variety of plants to choose from. C.Do you want to keep your garden where it is? D.Do you know how to shelter your garden in the sun? E.The whole system can be a beautiful water “feature”. F.How wide depends on the eventual size of the plant. G.Another way is to bury pipes with small holes underground. Ⅶ.完形填空 (2026浙江强基联盟高二期中) Bad luck hit Kart and three climbers as they set out for Mount Rainier.Despite the 　1　 weather forecast—strong winds and possible snowslides—they were determined to reach the summit.“We’ve prepared thoroughly,” Kart said,adjusting his equipment with 　2　.  As they climbed higher,the wind howled louder.Suddenly,blocks of ice 　3　 down the slope!One climber tried to grab Kart’s arm,but the force sent them sliding apart.After the chaos ended,Kart found himself stuck in a snow crack,legs trapped.He managed to 　4　 his feet with great effort.However,his teammates were nowhere to be seen.His throat tightened as he called their names,his voice filled with 　5　.  　6　,a weak shout echoed from above.Crawling 　7　,Kart spotted a teammate lying on the snow,bleeding from a head wound.His ankle bent at an unnatural angle—clearly broken.Kart immediately 　8　 his scarf to press on the wound.With no phone signal,he had to 　9　 the injured climber alone.  Afterwards,Kart helped the teammate limp toward a rocky cave.The icy path made each step shaky,but he refused to 　10　.Luckily,they reached shelter before dark.Kart lit a fire,his hands trembling from exhaustion and 　11　.  When rescuers finally arrived at dawn,the teammate whispered to Kart,“I 　12　 you my life.” Kart let out a long breath,relief mixing with pride.Later,　13　 this terrifying hardship,he said,“I never knew I had such strength.The 　14　 taught me that courage isn’t the absence of fear,but in 　15　 it.”  1.A.extreme B.stable C.mild D.crucial 2.A.hesitation B.eagerness C.anxiety D.satisfaction 3.A.flowed B.jumped C.knocked D.rolled 4.A.free B.bend C.stretch D.relax 5.A.persistence B.fear C.assurance D.sadness 6.A.Suddenly B.Currently C.Gradually D.Similarly 7.A.upward B.downward C.backward D.outward 8.A.cleaned B.folded C.tied D.tore 9.A.comfort B.leave C.rescue D.call 10.A.fall behind B.break down C.slow down D.give in 11.A.warmth B.starvation C.cold D.thirst 12.A.owe B.appreciate C.admire D.respect 13.A.forgetting B.recalling C.dismissing D.avoiding 14.A.experience B.journey C.situation D.affair 15.A.abandoning B.braving C.ignoring D.celebrating Ⅷ.语法填空 (2026四川成都高二期中) One of the main ways that governments can help to protect wildlife is to help protect wildlife 1.　　　　　(habitat).Many governments have national parks 2. activities like hunting,farming,and fishing are not allowed.  The first national park was Yellowstone National Park in the United States,which 3.　　　　　　(make) a national park in 1872.Today there are 61 national parks covering over 330,000 square kilometers of land in the United States.Throughout the world,there are over 100 countries that 4.　　　　　　(enthusiastic) work together to protect over 1,000 national parks.  An important part of protecting animals 5.　　　　　(include) keeping track of animal populations,helping scientists to know if the population is growing or falling.Scientists use a number of methods 6.　　　　　(try) to understand animal populations.  Another way that governments can help in protecting animals is with laws making it illegal to kill or harm endangered animals.There are many laws and international treaties(条约) that protect animals.People who hurt or kill these 7.　　　　　　(protect) animals can go to jail(监狱) for a long time and pay heavy fines.8. there are still some countries that have not signed the treaties.Such inaction could lead to 9.　　　　　　(disaster) consequences for global cooperation,putting endangered species 10.　　　　　 greater risk.  参考答案 基础练 Ⅰ.1.secure　2.owe　3.vast　4.appetite　5.heritage　6.chaos　7.decreased 8.trapped　9.departure　10.exploded Ⅱ.1.On behalf of　2.in return　3.coexist with　4.remove;from　5.out of control 6.decreased from;to Ⅲ.1.to stick　2.staying　3.if　4.it　5.it Ⅳ.1.making himself popular among his classmates 2.Never had I felt so warm and encouraged 3.while we were walking along the quiet country road 4.It is a great pleasure to share our happiness and kindness 5.told by my teacher 提升练 Ⅴ.【语篇解读】本文是一篇说明文。文章主要介绍美国国家濒危物种日的由来,并阐述物种灭绝的危害及组织和个人的保护行动。 1.A　细节理解题。根据第二段中的“The day was established in 2006 by the US Congress to raise awareness about species in danger of dying out.”可知,国家濒危物种日是美国国会在2006年设立的。故选A项。 2.B　主旨大意题。根据第四段“When a species disappears...and food chains fall apart.”可知,第四段重点说明物种消失如何对生态系统造成危害。故选B项。 3.C　推理判断题。根据最后一段可知,拯救物种有助于维持地球的健康状态。故选C项。 4.B　主旨大意题。文章开篇介绍美国国家濒危物种日的时间和设立初衷,接着阐述濒危物种的现状、物种消失的危害,最后呼吁组织和个人采取行动保护濒危物种,核心是借该节日倡导人们立即行动起来保护濒危物种。故选B项。 【语篇解读】本文是一篇说明文。气候变化引发极地冰盖融化,融水涌向赤道使地球自转变慢,进而给全球计时系统带来挑战。科学家提议引入“负闰秒”解决该问题,但这一方案也存在系统故障的潜在风险。 5.B　细节理解题。根据第二段中“As meltwater flows into oceans,it collects around the equator”和“The planet gets slightly ‘fatter’ there,which makes Earth turn slowly”可知,是融水向赤道移动导致了地球自转变慢。故选B项。 6.A　细节理解题。根据第五段中“Experts like physicist Judah Levine warn that software designed to handle time adjustments may fail.”可知,提议引入的“负闰秒”可能会引发系统故障。故选A项。 7.A　推理判断题。根据第六段“These events show how fragile our time-dependent world is,and climate change is making it even more challenging.”可知,作者对气候变化给计时带来的影响持担忧的态度。故选A项。 8.C　主旨大意题。根据第一段中“Now,scientists warn that melting polar ice caps are even affecting how we keep track of time.”以及全文围绕气候变化对全球计时系统的意外影响展开介绍可知,“气候对时间的意外考验”最适合作为文章标题。故选C项。 Ⅵ.【语篇解读】本文是一篇说明文。文章主要介绍了夏季雨水过多时,在花园里如何排水和种植植物。 1.C　本空前提到“For many,the problem is too much rain.”以及下文“Do you still want to grow tomatoes or roses in that sunny place?It can be done.”可知,本句与空后并列,是一个关于花园的问句。故选C项。 2.E　根据上文“Picture a garden in which flat stones line ditches and form bridges across ditches that cross paths.”可知,上文主要是关于如何美化花园的沟渠,本句也和其有关。故选E项。 3.G　根据下文“Dig a ditch,as described above,then lay in black pipe that is about 10 centimeters across its width.Available at home and building stores,the pipe is made to bend easily,and the holes in it let in water.Cover the pipe with a piece of cloth that water can pass through to keep out dirt and a layer of small stones.”可知,本段主要内容是建议在地下埋置带有小孔的管道来排水,这是文中提出的第二种方法,G选项中“Another way”呼应第二段开头的“One way”和第四段开头的“A third way”。故选G项。 4.A　本段主要建议在地下埋置带有小孔的管道来排水,空格前提到“Cover the pipe with a piece of cloth that water can pass through to keep out dirt and a layer of small stones.”可知,下文就应该开始埋置管子的收尾工作。故选A项。 5.F　上文提到“The beds need to be wide enough to allow roots to spread.”以及下文提到“If you want a bigger plant,give its roots more room to grow.”可知,本句是在说明宽度对于植物生长的影响。故选F项。 Ⅶ.【语篇解读】本文是一篇记叙文。Kart与队友攀登雷尼尔山时遭遇极端天气和险情,他勇救受伤队友,最终获救,并领悟了勇气的真谛。 1.A　根据下文“strong winds and possible snowslides”可知,预报天气极端恶劣,故选A项。 2.B　根据上文“We’ve prepared thoroughly”可知,Kart准备充分,所以调整装备时很急切,故选B项。 3.D　根据上文“blocks of ice”和下文“down the slope”可知,冰块会顺着斜坡滚下来,故选D项。 4.A　根据上文“After the chaos ended,Kart found himself stuck in a snow crack,legs trapped.”可知,Kart的腿被困住了,所以此处表示他要把脚抽出来,使脚自由,故选A项。 5.B　根据上文“However,his teammates were nowhere to be seen.”可知,队友都不见了,所以他很恐惧,故选B项。 6.A　根据上文“However,his teammates were nowhere to be seen.”以及下文“a weak shout echoed from above”可知,在Kart恐惧的时候,突然听到了喊声,故选A项。 7.A　根据上文“a weak shout echoed from above”可知,喊声是从上面传来的,所以Kart是向上爬,故选A项。 8.D　根据下文“his scarf to press on the wound”以及语境可知,此处表示撕下围巾,按压伤口,故选D项。 9.C　根据下文“the injured climber alone”以及语境可知,没有信号无法求救,所以他只能独自营救受伤的队友,故选C项。 10.D　根据下文“Luckily,they reached shelter before dark.Kart lit a fire,his hands trembling from exhaustion and 　　　.”可知,虽然路难走,但他没有屈服和放弃,他们最终到达了避难所,故选D项。  11.C　根据上文“Afterwards...The icy path made each step shaky”可知,路上很冷,所以他的双手因筋疲力尽和寒冷而颤抖,故选C项。 12.A　根据上文“Kart immediately 　　　his scarf to press on the wound.With no phone signal,he had to 　　　the injured climber alone.”以及“Afterwards,Kart helped the teammate limp toward a rocky cave.”可知,Kart救了队友的命,所以队友认为他欠Kart一条命,故选A项。  13.B　根据下文“this terrifying hardship,he said,‘I never knew I had such strength...’”以及语境可知,此处表示Kart在回忆这次经历,故选B项。 14.A　根据上文“Later,　　　 this terrifying hardship,he said,‘I never knew I had such strength...’”可知,是这次登山经历让他明白了勇气的含义,故选A项。  15.B　根据上文“The 　　　taught me that courage isn’t the absence of fear”可知,此处表示勇气不是没有恐惧,而是勇敢面对恐惧,故选B项。  Ⅷ.【语篇解读】本文是一篇说明文。文章介绍了政府保护野生生物的几种方法。 1.habitats　考查名词的数。habitat为可数名词,根据句意,此处表达的是复数意义。故填habitats。 2.where　考查定语从句。空处引导定语从句,先行词parks在从句中作地点状语,故用where引导定语从句。 3.was made　考查动词的时态和语态。根据句中的in 1872可知,此处描述的是发生在过去的事情,用一般过去时,which引导定语从句,并在从句中作主语,替代先行词Yellowstone National Park,是单数,谓语动词用单数,且与make是被动关系。故填was made。 4.enthusiastically　考查副词。修饰动词work,使用副词作状语,enthusiastic的副词为enthusiastically,意为“热心地,满腔热情地”。故填enthusiastically。 5.includes　考查动词的时态和主谓一致。设空处所在句主语的中心词为part,为单数形式,所以谓语include应用第三人称单数形式。根据语境可知,此处描述的是客观事实,应用一般现在时。故填includes。 6.to try　考查非谓语动词。设空处作目的状语,应用不定式。故填to try。 7.protected　考查非谓语动词。设空处作定语,修饰animals,且animals与protect之间为被动关系,所以应用过去分词。故填protected。 8.But　考查连词。上下文是转折关系,讲述伤害或杀害这些受保护动物的人会被惩罚,但是仍有一些国家没有签署这些条约。故填But。 9.disastrous　考查形容词。修饰名词consequences用形容词作定语。故填disastrous。 10.at　考查介词。put...at risk表示“将某人或某物置于危险之中”,为固定短语。故填at。 学科网（北京）股份有限公司 $