Unit 6 Earth First 阶段练习-2026-2027学年高中英语外研版必修第二册

Unit 6　Earth First 基础练 Ⅰ.品句填词 1.Don’t release the news to the public until we give you the 　　　　　　(许可).  2.When applying for a job,you should 　　　　　　(使……突出) your experience and skills.  3.Today,　　　　　　(可持续的) development is a popular trend in many countries.  4.Our country attaches great importance to establishing 　　　　　　(保护区) for animals in danger.  5.He never 　　　　　　(采纳) others’ advice so that he always makes mistakes.  6.The grades you get are based on your 　　　　　　(态度) to study.  7.On the stage,the man wearing a frightening mask 　　　　　　(吓唬) the child into crying.  8.They all got involved in a 　　　　　　(活动) to reduce 　　　　　　(温室) gases.  9.　　　　　　 (供给) of water and food from all over the country have been sent to the disaster area to help those 　　　　　　(影响) by the flood.  10.People used to 　　　　　　(把……作为目标) trees for profit but now they have been aware of the importance of protecting trees.  Ⅱ.选词填空 break down,due to,on average,depend on,mistake...for...,take...into account,without permission,the majority of 1.It is agreed that traffic accidents are largely 　　　　　　　　　drivers’ carelessness.  2.Obviously,the ship set out on its voyage 　　　　　　　　　　　last night.  3.　　　　　　　　　　 each report requires 1,000 hours to prepare.  4.One must 　　　　　　the audience 　　　　　　　　　　　　when making speeches. 5.With so much tough work filling my mind,I 　　　　　　　　　　　　　.  6.For many years,　　　　　　　　　　　　 Irish people earned their living as farmers.  7.The neighbors often 　　　　　　Amy 　　　　　　her twin sister Alice.  8.The expenses of the trip 　　　　　　　　　(取决于) how many people are involved.  Ⅲ.单元语法 1.在车流的喧闹声中,他无法使别人听到他的声音。 He couldn’t 　　　　　　　　　　　　above the noise of the traffic.  2.随着社会的快速发展,我们有必要掌握好英语。 　　　　　　　　　　　　　　　　　,it is necessary for us to have a good command of English.  3.最终,你会发现自己正在成长为一个全面发展的人。 In time you will 　　　　　　　　　　　　　　　　　　a well-rounded individual.  4.一切完成后,她兴奋得两眼放光。 　　　　　　　　　　　　　　,her eyes were shining with excitement.  5.当我们站在山上时,看到太阳从东方缓缓升起。 We 　　　　　　　　　　　　　　　　　　from the east when we stood on the hill.  6.当老师去拿她忘在办公室的一本书时,一个学生睡觉被柯老师抓住了。 A student 　　　　　　　　　　　　　　　　by Mr Ke when their teacher went to get a book she had left in the office.  7.我必须在老板回来之前让人把汽车修好。 I must 　　　　　　　　　　　　　　　　　　before the boss comes back.  8.她刚才如此全神贯注于工作,以至于没听见有人敲门。 She was so absorbed in her job that she didn’t 　　　　　　　　　　　　　　　　the door just now.  9.黄昏时,游客们发现自己在树林里迷了路。 At dusk,the tourists 　　　　　　　　　　　　　in the woods.  10.露西很有幽默感,总是用她的故事逗同事们开心。 Lucy has a great sense of humour and always 　　　　　　　　　　　　　　　　with her stories.  Ⅳ.追型逐句 1.既兴奋又有活力,这位年轻运动员朝着终点线冲刺。(形容词作状语) 　　　　　　　　　　　,the young athlete sprinted towards the finish line.  2.志愿者们在公园里种了很多树,让这个地方变得更漂亮,还为鸟类提供了栖息地。(现在分词短语作结果状语) The volunteers planted many trees in the park,　　　　　　　　　　　　　　　　　　　　　　　　 and providing habitats for birds.  3.我正在写申请信时,电脑突然坏了,这让我非常焦虑。(be doing...when...) I 　　　　　　　　　　　　　　　　　　　　　　　　my computer suddenly broke down,which made me quite anxious.  4.在关于学校社团的讨论中,并非所有学生都喜欢加入体育社团,有些人对艺术社团更感兴趣。(部分否定) In the discussion about school clubs,　　　　　　　　　　　　　　　　　　　　　　　　　　　—some are more interested in art clubs.  5.我们公司出版的书的数量是去年的两倍。(倍数句型) Our company has published twice 　　　　　　　　　　　　　　　　we did last year.  提升练 Ⅴ.阅读理解 A (2026湖南长沙长郡中学高一上期末) “My instincts tell me this is Opung’s faeces(粪便),” said Nayla Azmi as she studied the clump of hair,broken egg shells and bones while out in the forest.In the local Batak language,“Opung” means grandparent and is used to refer to tigers.The Batak people,Indigenous(土生土长的) to Sumatra in Indonesia,have legends about ancestors making friends with tigers. Azmi,35,is part of an all-women Indigenous patrol team,the Nuraga Bhumi Institute,founded in 2021.Their job is to help Gunung Leuser National Park(GLNP) rangers protect 100 hectares of buffer zone territory. The GLNP,established in 1980,protects almost 1.1 million hectares of the 2.6 millionhectare Leuser ecosystem.However,with many unfenced borders and a shortage of rangers,it’s easy for poachers(偷猎者) or palm oil companies to move onto the land.The Leuser ecosystem is the only place where tigers,elephants,orangutans(猩猩) and rhinos live together in the wild,but all are endangered due to poaching and habitat destruction. Azmi founded the Nuraga Bhumi Institute,which operates near a tourist hot spot for wild orangutan encounters,to address the gender imbalance and lack of Indigenous people in local preservation.“Only about 15 percent of Sumatran environmentalists are women;the percentage of Indigenous women is probably less than half that,” says Azmi. The team members undergo practical training to conduct patrols effectively.They learn to use GPS,camera traps and drones,identify and take apart poachers’ traps,and report findings to park authorities.The team also hosts weekly protection education classes for local children. As another day ends,they watch footage of a tiger.The team is delighted to know a tiger in their territory is safe—for now. 1.How does the author introduce the topic? A.By sharing a local legend. B.By introducing a key individual. C.By discussing a traditional belief. D.By describing an environmentalist’s fieldwork. 2.What can be inferred about the GLNP? A.It gives priority to the protection of tigers. B.It cooperates with palm oil companies. C.It struggles with illegal human activities. D.It’s the only habitat for certain species. 3.Why did Azmi establish the Nuraga Bhumi Institute? A.To enhance local wildlife research. B.To support the growth of eco-tourism. C.To promote inclusion in protection. D.To assist the authorities in catching poachers. 4.What could be the best title for the article? A.The Nuraga Bhumi Institute’s Efforts B.The Challenges Faced by Sumatran Wildlife C.The Role of Women in Wildlife Protection D.The Evolution of Gunung Leuser National Park B (2026山东烟台高一上期末) AI has a water problem,which worries us a lot.People are increasingly using AI tools in their daily personal and professional lives.A significant amount of heat is produced by the energy required to power the tools.This heat is released into data centers,which provide those AI systems with the computational support and storage space they need to function. There are no regulations for AI and no laws requiring technology companies to deal with the problem.That’s led scientists like Shaolei Ren,an associate professor at UC Riverside,to investigate this question independently.As he notes,cooling down the data centers requires an enormous amount of water,similar to the amount used by tens of thousands of residents(居民).“When you use water for a shower,for example,it can be repurposed,” says Ren,whose research is focused on how to make AI more socially and environmentally responsible.“When water is evaporated(蒸发) to cool down a data center,it’s gone.” Even before the current AI development,data centers’ water and energy demands had steadily(稳定地) increased.In 2022,according to Google,its data centers used over five billion gallons of water,20 percent more than in 2021;Microsoft used 34 percent more water companywide in 2022 than in 2021. AI stands only to compound the existing resource demand that data centers create for the global energy system:In 2026,electricity consumption at data centers because of the increasing use of AI will double the amount in 2022,the International Energy Agency says. “I explain it in terms my kid understands,” says Ren.“If you have a conversation with ChatGPT for 10 to 50 questions and answers,it will use about 500 milliliters of water,or the size of a standard bottle of water.This shocking water consumption shows how necessary it is for the technology industry to put more money in and develop energy-saving AI to cut down on such waste to ensure the digital inventions don’t come at the expense of our planet’s resources.” 5.What is the primary issue discussed in the text? A.The safety risks of AI. B.The limited computational support. C.The energy consumption by AI. D.The high cost of building data centers. 6.How does water used for data centers differ from shower water? A.It’s cleaner in quality. B.It cannot be reused. C.It consumes less water. D.It’s treated with chemicals. 7.What does the underlined word “compound” in paragraph 4 mean? A.Slow down.　　B.Connect with. C.Add to. D.Smooth out. 8.What’s the purpose of Ren’s words in the last paragraph? A.To encourage the use of AI. B.To highlight the power of AI. C.To provide the exact data for researchers. D.To call for the development of greener AI. Ⅵ.七选五 (2026河南三门峡高一上期末) Shinrin-you,or forest bathing,is a unique Japanese practice emerging in the 1980s.It invites people to immerse themselves in forest energy and calm,seeking reflection,positive energy and renewed wellness. 1　 The concept was developed by Japan’s Forest Agency in 1982 with two goals:relieving high-stress lifestyles from the technological revolution and encouraging reconnection with nature.  Unlike intense outdoor activities,forest bathing is low-impact.　2　 It emphasizes being present,focusing on surroundings and embracing woodlands’ natural order instead of altering them.Many mistake it for long hikes or intense physical activity,but it is actually about slowing down.  The practice is surprisingly simple.　3　 Whether alone or on a guided tour,participants walk quietly in forests,concentrating on the world around them without distractions.Even sitting under a tree and breathing deeply counts as forest bathing.  4　 Studies show that forest time lowers cortisol(皮质醇) levels and boosts the activity of natural killer cells,which help fight off illness.Mentally,it clears brain fog and reduces anxiety,offering a rare break from digital overload.  You don’t need to travel far for forest bathing,even in or near Tokyo.　5　 These spots offer accessible escapes from the hustle and bustle of city life,letting urban dwellers experience nature’s healing power without long trips.  From Iiyama’s beach forests to Meiji Shrine,forest bathing helps people step away from daily pressures and reconnect with nature meaningfully.It reminds us that wellness is simple—it lies in quiet,tree-filled spaces. A.This calm practice has a thoughtful origin story. B.Its core is mindfulness,not speed or achievement. C.Leave digital devices aside to fully engage with nature. D.Forest bathing has grown globally popular in recent years. E.The idea behind forest bathing arose from improving public health. F.Meiji Shrine and the Institute for Nature Study are perfect examples. G.It’s not just leisure—forest bathing benefits physical and mental health. Ⅶ.完形填空 (2026山西大同高一上期末) While David Lee was in college,he found an injured owl(猫头鹰) on his way home one day.The owl was 　1　,unable to move,and its eyes were filled with fear.Instead of 　2　 it,David gently picked it up and took it to a nearby wildlife rescue center.That small act 　3　 the course of his life.  After graduating,David decided to become a full-time wildlife rescuer.His job was　4　.Every day,he responded to calls about injured birds or animals.He spent long hours 　5　 wounds,feeding animals,and staying up late to 　6　 those in need.  However,not every rescue ended　7　.Some animals were too weak to 　8　,leaving David feeling helpless and sad.Still,he never gave up.He believed that every life deserved(应得) respect and a chance to 　9　.Even saving one animal made his 　10　 worthwhile.  Over the years,David has also　11　 the public.He visited schools and communities to teach people how to act when they found injured wildlife and why protecting animals mattered.As a result,more people have become 　12　 of the importance of wildlife protection.  Today,many animals have　13　 safely to the wild because of David’s work.His 　14　 tells us that protecting wildlife does not always require great power or wealth.Sometimes,it begins with one kind 　15　 and the courage to act.  1.A.calm B.weak C.noisy D.active 2.A.ignoring B.touching C.pushing D.saving 3.A.recorded B.shocked C.stopped D.changed 4.A.well-paid B.bad-mannered C.challenging D.unpromising 5.A.hiding B.treating C.counting D.moving 6.A.look up B.come across C.clear away D.watch over 7.A.happily B.quietly C.suddenly D.illegally 8.A.escape B.survive C.compete D.follow 9.A.live B.play C.travel D.run 10.A.reports B.tours C.efforts D.proposals 11.A.warned B.invited C.protected D.educated 12.A.aware B.afraid C.tired D.short 13.A.listened B.returned C.attended D.replied 14.A.need B.team C.story D.family 15.A.tip B.teacher C.face D.decision Ⅷ.语篇填空 (2026河北邢台高一上期末) In southern Africa,the Kavango Zambezi Transfrontier Conservation Area(KAZA) is 1.　　　　　　 important reserve for southern Africa’s large carnivores(食肉动物).2.　　　　　　(connect) protected lands across Angola,Botswana,Namibia,Zambia,and Zimbabwe,KAZA is home 3.　　　　　　 around 20% of Africa’s lions,25% of the continent’s wild dogs,and 15% of the world’s cheetahs,etc.All these species share the landscape with some 2.7 million people.  However,increasingly,large carnivore habitats are under threat.As human populations grow,wildlife habitats become destroyed 4.　　　　　　(alarming).As a result,carnivores are forced to move through human areas,leading to conflicts(冲突) between people and carnivores.From 2003 to 2015,carnivores hunted and killed nearly 6,000 farm animals in Namibia alone,where local economy 5.　　　　　　　　　(threaten) greatly.What’s worse,it also caused ill-intended killings—one of the greatest threats to KAZA’s lions.  6.　　　　　　　　　(promote) human-wildlife coexistence in conflict hot areas,WWF’s partners have helped build long-lasting and mobile enclosures(围场),or kraals,7.　　　　　　 keep farm animals safe from carnivores at night.Long-lasting kraals are built using metals,while mobile kraals are made from strong cloth materials.  These enclosures have been remarkably 8.　　　　　　(effect).Since setting up kraals,communities in Botswana,Namibia,and Zimbabwe 9.　　　　　　　　(see) a sharp drop in farm animal loss—sometimes by as much as 100%.And with fewer 10.　　　　　　(attack) on farm animals,people are less likely to harm large carnivores,making KAZA safer for all.  参考答案 基础练 Ⅰ.1.permission　2.highlight　3.sustainable　4.reserves　5.adopts　6.attitude　7.scared　8.campaign;greenhouse　9.Supplies;affected　10.target Ⅱ.1.due to　2.without permission　3.On average　4.take;into account　5.broke down　6.the majority of　7.mistake;for　8.depend on Ⅲ.1.make himself heard　2.With society developing quickly　3.find yourself growing into　4.With everything finished　5.saw the sun rising slowly　6.was caught sleeping　7.have the car repaired　8.hear anybody knocking at　9.found themselves lost　10.keeps her colleagues amused Ⅳ.1.Excited and energetic　2.making the place more beautiful　3.was writing my application letter when　4.not all students are fond of joining sports clubs　5.as many books as 提升练 Ⅴ.【语篇解读】本文是一篇记叙文。文章以阿兹米的森林实地保护工作切入,介绍其 2021 年创立的印尼原住民女性保护团队,讲述团队成立背景、培训及保护工作,守护当地濒危物种的生存环境。 1.D　推理判断题。根据第一段“‘My instincts tell me this is Opung’s faeces,’ said Nayla Azmi as she studied the clump of hair,broken egg shells and bones while out in the forest.In the local Batak language,‘Opung’ means grandparent and is used to refer to tigers.The Batak people,Indigenous to Sumatra in Indonesia,have legends about ancestors making friends with tigers.”可推知,作者是通过描述一位环保主义者的研究工作来引入主题的。 2.C　推理判断题。根据第三段中“However,with many unfenced borders and a shortage of rangers,it’s easy for poachers or palm oil companies to move onto the land.”可知,GLNP 存在边界无围栏、护林员短缺的问题,偷猎者和棕榈油企业极易侵入其领地,由此可推断,该公园深受非法人类活动的困扰。 3.C　细节理解题。根据第四段中“Azmi founded the Nuraga Bhumi Institute,which operates near a tourist hot spot for wild orangutan encounters,to address the gender imbalance and lack of Indigenous people in local preservation.”可知,阿兹米创立该机构的核心目的是解决当地保护工作中性别失衡和原住民参与度低的问题,本质是推动保护工作的包容性,让女性和原住民更多地参与其中。 4.A　主旨大意题。通读全文可知,文章开篇以阿兹米的实地工作引入主题,随后介绍其创立的 Nuraga Bhumi Institute(原住民女性巡逻队)的成立背景、创立初衷、团队的培训内容和具体保护工作,全文始终围绕该机构的野生动物保护行动展开,因此A 选项“努拉加·布米研究所的努力”是最贴合主旨的标题。 【语篇解读】本文是一篇说明文。文章主要介绍了人工智能的发展带来了严重的水资源消耗问题,AI 运行所需的数据中心冷却会耗费大量不可回收的水,科学家呼吁科技行业研发更环保节能的人工智能以减少资源浪费。 5.C　细节理解题。根据第一段“AI has a water problem,which worries us a lot.People are increasingly using AI tools in their daily personal and professional lives.A significant amount of heat is produced by the energy required to power the tools.”以及全文围绕 AI 带来的水和能源消耗展开论述可知,文章探讨的核心问题是人工智能的能源消耗问题。 6.B　细节理解题。根据第二段“‘When you use water for a shower,for example,it can be repurposed,’ says Ren,whose research is focused on how to make AI more socially and environmentally responsible.‘When water is evaporated to cool down a data center,it’s gone.’”可知,用于数据中心的水和洗澡水的区别在于前者无法被再次利用。 7.C　词义猜测题。根据第四段“AI stands only to compound the existing resource demand that data centers create for the global energy system:In 2026,electricity consumption at data centers because of the increasing use of AI will double the amount in 2022,the International Energy Agency says.”及后文提到的耗电量翻倍的内容可推知,compound意为“增加、加剧”。 8.D　推理判断题。根据最后一段“‘I explain it in terms my kid understands,’ says Ren.‘If you have a conversation with ChatGPT for 10 to 50 questions and answers,it will use about 500 milliliters of water,or the size of a standard bottle of water.This shocking water consumption shows how necessary it is for the technology industry to put more money in and develop energy-saving AI to cut down on such waste to ensure the digital inventions don’t come at the expense of our planet’s resources.’”可知,任教授说这些话的目的是呼吁研发更环保的人工智能。 Ⅵ.【语篇解读】本文是一篇说明文。文章主要介绍了日本森林浴的起源、低强度且以正念为核心的特点、简单的实践方式,及其对身心的益处,还说明了东京周边就近就可体验该活动。 1.E　上文 “Shinrin-yoku,or forest bathing,is a unique Japanese practice emerging in the 1980s.It invites people to immerse themselves in forest energy and calm,seeking reflection,positive energy and renewed wellness.” 介绍了森林浴的定义和对健康的追求。下文 “The concept was developed by Japan’s Forest Agency in 1982 with two goals:relieving high-stress lifestyles from the technological revolution and encouraging reconnection with nature.” 讲述森林浴概念的提出背景和健康相关创立目标。E 项 “森林浴的理念源于改善公共健康” 承上启下,承接上文对森林浴健康初衷的介绍,引出下文其创立的健康相关目标,符合语境。 2.B　上文 “Unlike intense outdoor activities,forest bathing is low-impact.” 指出森林浴低强度的特点,下文 “It emphasizes being present,focusing on surroundings and embracing woodlands’ natural order instead of altering them.Many mistake it for long hikes or intense physical activity,but it is actually about slowing down.” 阐释森林浴的核心是专注当下、放慢节奏而并非追求运动成果。B 项 “它的核心是正念,而非速度或成就” 承上启下,承接上文的低强度特点,引出下文对森林浴核心内涵的具体阐释,符合语境。 3.C　上文 “The practice is surprisingly simple.” 说明森林浴的实践方式十分简单,下文 “Whether alone or on a guided tour,participants walk quietly in forests,concentrating on the world around them without distractions.Even sitting under a tree and breathing deeply counts as forest bathing.” 描述森林浴的具体做法是专注自然、不受外界干扰。C 选项 “放下电子设备,全身心投入自然” 承上启下,承接上文的简单特点,引出下文参与者专注自然、不分心的具体做法,符合语境。 4.G　下文 “Studies show that forest time lowers cortisol levels and boosts the activity of natural killer cells,which help fight off illness.Mentally,it clears brain fog and reduces anxiety,offering a rare break from digital overload.” 通过研究结果说明森林浴对身体和心理的双重益处。G 项 “这不仅仅是休闲——森林浴对身心健康都有益处” 引出下文对森林浴健康益处的具体阐述,符合语境。 5.F　上文 “You don’t need to travel far for forest bathing,even in or near Tokyo.” 指出在东京及周边体验森林浴无需长途跋涉,下文 “These spots offer accessible escapes from the hustle and bustle of city life,letting urban dwellers experience nature’s healing power without long trips.” 说明这些就近体验点的作用。F 选项 “明治神宫和自然研究所就是绝佳的例子” 承上启下,承接上文的就近体验观点,举出具体地点的例子,且与文末的 Meiji Shrine 相呼应,引出下文 “These spots” 的指代内容,符合语境。 Ⅶ.【语篇解读】本文是一篇记叙文。文章主要讲述了David Lee救助受伤的猫头鹰后成为全职野生动物救助者,他的工作充满挑战,但他从未放弃,他还教育公众保护野生动物的重要性,他的故事告诉我们保护野生动物始于善意的决定和行动的勇气。 1.B　根据下文“unable to move,and its eyes were filled with fear”可知,猫头鹰无法移动,推测此处表示猫头鹰很虚弱。 2.A　根据下文“David gently picked it up and took it to a nearby wildlife rescue center.”可知,David采取了行动,没有忽视受伤的猫头鹰。 3.D　根据下文“After graduating,David decided to become a full-time wildlife rescuer.”可知,那个小小的举动改变了David的人生轨迹。 4.C　根据下文“Every day,he responded to calls about injured birds or animals.”可知,David的工作很有挑战性。 5.B　根据上文“After graduating,David decided to become a full-time wildlife rescuer.”以及下文“wounds”可知,作为野生动物救助者,David会帮助动物治疗伤口。 6.D　根据上文“Every day,he responded to calls about injured birds or animals.”可知,此处表示David照顾那些需要帮助的动物。 7.A　根据下文“Some animals were too weak to 　　　,leaving David feeling helpless and sad.”可知,并不是每一次救援都能圆满结束。  8.B　根据下文“leaving David feeling helpless and sad”可知,有些动物太虚弱了,无法生存下来,这会使得David感到无助和悲伤。 9.A　根据上文“He believed that every life deserved respect”以及语境可知,每个生命都值得被尊重,都有生存的机会。 10.C　根据上文“Even saving one animal”可知,此处表示即使拯救一只动物也让他的努力变得值得。 11.D　根据下文“He visited schools and communities to teach people how to act when they found injured wildlife and why protecting animals mattered.”可知,David还教人们知识和方法,所以此处表示David教育公众。 12.A　根据下文“the importance of wildlife protection”可知,越来越多的人意识到保护野生动物的重要性。 13.B　根据下文“safely to the wild because of David’s work”可知,许多动物已经安全地回到了野外。 14.C　根据下文“tells us that protecting wildlife does not always require great power or wealth”以及语境可知,此处表示他的故事告诉我们一个道理。 15.D　根据上文“Instead of 　　　it,David gently picked it up and took it to a nearby wildlife rescue center.That small act 　　　the course of his life.”以及下文“and the courage to act”可知,此处表示一个善意的决定和采取行动的勇气。  Ⅷ.【语篇解读】本文是一篇说明文。KAZA是非洲南部重要的食肉动物保护区,但人类活动破坏了它们的栖息地,引发人兽冲突。WWF 建立防护围场,有效减少牲畜损失,促进人兽共存,保护了食肉动物。 1.an　考查冠词。此处reserve为泛指,且important是发音以元音音素开头的单词。故填an。 2.Connecting　考查非谓语动词。此处connect与KAZA构成主动关系,故用现在分词作状语,句首首字母大写。故填Connecting。 3.to　考查介词。be home to“是……的家园”。故填to。 4.alarmingly　考查副词。修饰谓语become destroyed,用副词。故填alarmingly。 5.was threatened　考查动词的时态和语态。主语economy与谓语构成被动关系,根据上文From 2003 to 2015可知为一般过去时的被动语态,谓语用单数。故填was threatened。 6.To promote　考查非谓语动词。此处作目的状语,用不定式,首字母大写。句首故填To promote。 7.that/which　考查定语从句。定语从句修饰先行词enclosures,引导词代替先行词在从句中作主语,指物,故填that/which。 8.effective　考查形容词。此处作表语,用形容词effective。故填effective。 9.have seen　考查动词的时态。根据上文Since setting up kraals可知为现在完成时,主语为communities,助动词用have。故填have seen。 10.attacks　考查名词的数。根据上文fewer可知应用复数形式。故填attacks。 学科网（北京）股份有限公司 $