单元话题完形填空练习-2025-2026学年高中英语人教版选择性必修第二册

A little effort every day, you’ll make a big difference. Unit 1 Science and Scientists Science has always been a driving force in human progress. Throughout history, scientists have made great 1 to our understanding of the world. Their work often involves careful observation, repeated experiments, and 2 reasoning. One of the most famous scientists in history is Isaac Newton. He was sitting under an apple tree when an apple fell and hit him on the head. This simple event led him to think about the force that 3 objects toward the earth. After years of research, he finally developed his theory of gravity, which 4 why planets move around the sun in predictable paths. Another remarkable scientist is Marie Curie. She devoted her life to studying radioactive elements. Despite 5 many difficulties as a woman in science, she never gave up. Her discoveries in physics and chemistry earned her two Nobel Prizes, making her the first person to 6 this honor. Scientific research requires patience and 7 . Scientists must be willing to face failure and learn from their 8 . They also need to communicate their findings clearly so that others can 9 upon their work. In this way, knowledge accumulates and human society continues to 10 . Today, science is developing at an 11 speed. New technologies are emerging constantly, bringing both opportunities and 12 . As future citizens, we should develop scientific thinking and stay 13 about the world around us. The spirit of science encourages us to 14 questions and seek truth through evidence. Only by maintaining this 15 can we make progress in any field. 1. A. efforts B. contributions C. decisions D. preparations 2. A. logical B. physical C. chemical D. medical 3. A. pushes B. throws C. pulls D. drops 4. A. imagined B. created C. invented D. explained 5. A. facing B. avoiding C. ignoring D. solving 6. A. refuse B. achieve C. forget D. doubt 7. A. luck B. wealth C. determination D. comfort 8. A. successes B. mistakes C. dreams D. plans 9. A. take B. depend C. look D. build 10. A. advance B. return C. remain D. disappear 11. A. unusual B. unprecedented C. unexpected D. unnecessary 12. A. advantages B. benefits C. challenges D. chances 13. A. serious B. nervous C. silent D. curious 14. A. raise B. answer C. avoid D. repeat 15. A. silence B. distance C. attitude D. direction Unit 2 Bridging Cultures Studying abroad has become increasingly 1 among Chinese students in recent years. It offers young people a valuable opportunity to experience different cultures and 2 their horizons. However, adapting to a new environment can be 3 . When students first arrive in a foreign country, they often experience culture shock. Everything seems unfamiliar, from the food and weather to social customs and academic 4 . Some students may feel homesick and 5 during the initial period. It takes time and effort to 6 to the new way of life. Language barriers can also create difficulties. Even students with good English skills may 7 to understand local accents and informal expressions. Classroom discussions and academic writing require a higher level of language 8 . Many students spend extra time improving their language abilities. Despite these challenges, studying abroad brings numerous 9 . Students gain independence and learn to solve problems on their own. They develop cross-cultural communication skills that are 10 in today’s globalized world. Making friends from different backgrounds helps them understand 11 perspectives. To make the most of this experience, students should keep an open 12 . They need to respect local customs while maintaining their own cultural 13 . Participating in campus activities and joining student organizations can help them 14 into the community. With proper preparation and a positive attitude, studying abroad can be a life-changing 15 . 1. A. difficult B. popular C. expensive D. boring 2. A. narrow B. limit C. broaden D. reduce 3. A. easy B. relaxing C. simple D. challenging 4. A. expectations B. excuses C. explanations D. experiments 5. A. excited B. lonely C. cheerful D. satisfied 6. A. adjust B. belong C. refer D. object 7. A. agree B. fail C. struggle D. hesitate 8. A. confidence B. appearance C. behavior D. proficiency 9. A. benefits B. risks C. losses D. debts 10. A. harmful B. essential C. optional D. similar 11. A. similar B. diverse C. simple D. familiar 12. A. mouth B. door C. window D. mind 13. A. identity B. memory C. history D. mystery 14. A. separate B. divide C. integrate D. isolate 15. A. disaster B. mistake C. accident D. journey Unit 3 Food and Culture Food is much more than just something we eat to 1 . It carries deep cultural meanings and reflects the history and values of a society. Different regions have developed unique cooking styles based on local 2 and climate conditions. Chinese cuisine is famous worldwide for its diversity and 3 . From the spicy flavors of Sichuan to the delicate tastes of Cantonese food, each region offers distinct 4 experiences. The art of Chinese cooking emphasizes the balance of colors, aromas, and 5 . Traditional Chinese medicine also influences food choices, as people believe certain ingredients can 6 health. Western food culture has its own 7 . In many European countries, meals are social events where families gather to share food and conversation. The French take particular 8 in their cuisine, which is considered an important part of their national identity. Wine pairing and elegant presentation are 9 elements of fine dining. Food also plays a significant role in festivals and 10 . During the Spring Festival, Chinese families prepare dumplings and fish, which 11 prosperity and abundance. Thanksgiving in America centers around a traditional turkey dinner, bringing loved ones together to 12 gratitude. In recent years, food culture has been influenced by globalization. People can now enjoy dishes from around the world in their own cities. However, it is important to 13 traditional cooking methods and local food heritage. Understanding food culture helps us 14 the richness of human civilization. Food truly serves as a bridge that 15 people across different cultures. 1. A. compete B. travel C. study D. survive 2. A. ingredients B. instruments C. instructions D. inventions 3. A. simplicity B. sophistication C. weakness D. laziness 4. A. medical B. musical C. culinary D. physical 5. A. textures B. temperatures C. pressures D. measures 6. A. ignore B. damage C. improve D. prevent 7. A. problems B. characteristics C. difficulties D. disadvantages 8. A. pleasure B. pain C. pity D. pride 9. A. essential B. useless C. harmful D. optional 10. A. competitions B. celebrations C. examinations D. conversations 11. A. symbolize B. criticize C. organize D. describe 12. A. refuse B. hide C. express D. forget 13. A. forget B. destroy C. ignore D. preserve 14. A. waste B. appreciate C. doubt D. reject 15. A. controls B. separates C. confuses D. connects Unit 4 Journey Across a Vast Land Canada is the second largest country in the world, covering an 1 area from the Atlantic Ocean to the Pacific Ocean. Its vast landscape includes mountains, forests, lakes, and prairies, offering 2 scenery for travelers. The most famous train route in Canada is The Canadian, which travels from Toronto to Vancouver. This four-day journey takes passengers through some of the most 3 natural wonders. As the train moves westward, travelers can 4 the dramatic changes in landscape and climate. Starting from Toronto, passengers first pass through the Canadian Shield, a region of ancient rock covered with forests and lakes. Then the train enters the Prairie Provinces, where endless fields of wheat 5 to the horizon. This flat land gives way to the 6 Rocky Mountains, with snow-capped peaks and deep valleys. Along the way, travelers have opportunities to observe wildlife in their natural 7 . Bears, moose, and eagles can often be 8 from the train windows. The journey also provides a chance to meet people from different backgrounds and learn about their way of life. Traveling by train offers a 9 experience compared to flying. It allows passengers to slow down and truly 10 the beauty of the land. The rhythmic sound of wheels on tracks creates a peaceful 11 , perfect for reflection and relaxation. For those seeking adventure and natural beauty, a train journey across Canada is truly 12 . The vastness of Canada reminds us of the 13 of nature. In our fast-paced modern life, such journeys help us reconnect with the natural world. They teach us to be 14 and to find joy in simple moments. Whether you are a nature lover or simply need a break from daily 15 , this journey will leave a lasting impression. 1. A. enormous B. tiny C. narrow D. limited 2. A. boring B. breathtaking C. ordinary D. familiar 3. A. common B. simple C. impressive D. artificial 4. A. witness B. ignore C. forget D. avoid 5. A. fall B. shrink C. break D. stretch 6. A. small B. ugly C. magnificent D. weak 7. A. habitat B. building C. factory D. school 8. A. trapped B. hidden C. lost D. spotted 9. A. similar B. unique C. boring D. dangerous 10. A. waste B. appreciate C. doubt D. reject 11. A. trouble B. pollution C. noise D. atmosphere 12. A. forgettable B. unforgettable C. comfortable D. uncomfortable 13. A. silence B. weakness C. power D. darkness 14. A. patient B. impatient C. careless D. hopeless 15. A. vacation B. holiday C. weekend D. routine Unit 5 First Aid Accidents can happen anytime and anywhere, making first aid knowledge 1 for everyone. Knowing how to respond in an emergency can mean the difference between life and death. Proper first aid can prevent injuries from becoming 2 and provide comfort to victims until professional help 3 . One of the most common emergencies is choking. When someone is choking, their airway is blocked, 4 them from breathing. The Heimlich maneuver is an effective technique to remove the 5 . You stand behind the person, wrap your arms around their waist, and make quick upward thrusts to force the object out. Burns are another frequent injury that requires 6 attention. For minor burns, cool the affected area with running water for at least ten minutes. Do not apply ice directly to the burn, as this can cause 7 damage. Cover the burn with a clean, dry cloth to prevent 8 . In case of bleeding, apply direct 9 to the wound using a clean cloth or bandage. Elevate the injured area above the heart level if possible. If the bleeding is severe and does not stop, call for emergency medical 10 immediately. Cardiopulmonary resuscitation, or CPR, is a life-saving technique used when someone’s heart has 11 . It involves chest compressions and rescue breaths to maintain blood flow and oxygen 12 . Learning CPR from a certified instructor ensures that you perform it 13 . First aid training should be part of everyone’s education. Schools and workplaces should organize regular training sessions to keep these skills 14 in people’s minds. Being prepared for emergencies not only protects ourselves but also 15 us to help others in need. 1. A. difficult B. optional C. essential D. impossible 2. A. better B. worse C. smaller D. lighter 3. A. arrives B. leaves C. disappears D. fails 4. A. encouraging B. allowing C. helping D. preventing 5. A. obstruction B. protection C. connection D. direction 6. A. delayed B. immediate C. unnecessary D. occasional 7. A. similar B. less C. further D. equal 8. A. infection B. comfort C. beauty D. strength 9. A. pleasure B. pressure C. attention D. attraction 10. A. punishment B. refusal C. complaint D. assistance 11. A. improved B. started C. stopped D. continued 12. A. shortage B. demand C. waste D. supply 13. A. slowly B. secretly C. correctly D. quietly 14. A. fresh B. old C. weak D. strange 15. A. delays B. prevents C. forbids D. enables 答案及解析 Unit 1 1---5 BACDA 6---10 BCBDA 11---15 BCDAC 文本分析 这是一篇议论文（说明文），主题为“科学与科学家”。文章通过列举牛顿和居里夫人的事例，阐述了科学研究的精神和方法，最后号召读者培养科学思维。 文章结构 第一段（1-2句） 科学是人类进步的驱动力，科学家的工作方式 第二段（3-7句） 牛顿发现万有引力的故事 例证一 第三段（8-10句） 居里夫人的科学成就 例证二 第四段（11-14句） 科学研究需要的精神品质 第五段（15-18句） 科学发展的现状与对青少年的期望 详解 1. B. contributions句意：纵观历史，科学家们为我们对世界的理解做出了巨大的贡献。 分析：考查固定搭配 make contributions to（为……做贡献）。A. efforts → make efforts to do（努力做某事），后接不定式，不接to+名词；C. decisions → make decisions（做决定），语义不符，D. preparations → make preparations for（为……做准备），语义不符，故选B。 2. A. logical句意：他们的工作通常涉及仔细观察、反复实验和逻辑推理。科学研究需要”逻辑推理”（logical reasoning），这是科学方法的核心。B. physical（物理的），C. chemical（化学的），D. medical（医学的）。干扰项均范围过窄，故选A。 3. C. pulls句意：这个简单的事件让他思考那种将物体拉向地球的力。万有引力（gravity）是将物体拉向地球中心的力，用 pull（拉）最准确。A. pushes 推力，方向向外，与引力方向相反，B. throws 扔/抛，强调瞬间动作，D. drops使落下，通常指物体从高处掉下，不用于描述力的本质，故选C。 4. D. explained句意：经过多年的研究，他终于提出了万有引力理论，该理论解释了为什么行星以可预测的轨道绕太阳运行。科学理论的目的是解释（explain）自然现象。A. imagined想象，科学理论不是想象出来的，B. created 创造，理论不是被“创造”的，而是被“发现/提出”的，C. invented发明，通常指发明具体物品，故选D。 5. A. facing句意：尽管作为科学界的女性面临许多困难，她从未放弃。despite 是介词，后接名词或动名词。face difficulties（面临困难）是固定搭配。B. avoiding避免困难，与“从未放弃”矛盾，C. ignoring忽视困难，语义不通，D. solving解决困难，despite solving difficulties（尽管解决了困难）逻辑不通，故选A。 6. B. achieve句意：她在物理和化学方面的发现为她赢得了两项诺贝尔奖，使她成为第一个获得这一荣誉的人。achieve 表示“取得/获得（成就、荣誉）”，与 honor 搭配恰当。A. refuse拒绝荣誉，与文意相反，C. forget忘记荣誉，语义不通，D. doubt 怀疑荣誉，语义不通，故选B。 7. C. determination句意：科学研究需要耐心和决心。and 连接并列成分，patience（耐心）对应 determination（决心），都是科学家必备的品质。A. luck运气，科学研究不依赖运气， B. wealth财富，与科学研究的精神品质无关，D. comfort舒适，科学研究往往需要吃苦，不是追求舒适，故选C。 8. B. mistakes 句意：科学家必须愿意面对失败，并从他们的错误中学习。learn from mistakes（从错误中学习）是固定搭配，与前面的 failure（失败）形成呼应。A. successes 从成功中学习，与“面对失败”的语境不符，C. dreams从梦想中学习，语义不通，D. plans从计划中学习，语义不通，故选B。 9. D. build句意：他们还需要清晰地传达他们的发现，以便其他人能够在他们的工作基础上继续发展。考查固定短语 build upon（在……基础上发展/建设）。A. take upon（承担），语义不符，B. depend upon（依赖），虽有此搭配，但强调“依赖”而非“发展”，C. look upon（看待），语义不符，故选D。 10. A. advance句意：通过这种方式，知识不断积累，人类社会持续进步。advance 作动词表示“前进/进步”，与前面的 progress（进步）呼应。B. return返回，与文意相反，C. remain保持不变，与”知识积累”矛盾，D. disappear消失，与文意相反，故选A。 11. B. unprecedented句意：如今，科学正以空前的速度发展。unprecedented（空前的、前所未有的）强调速度之快是历史上从未有过的，语气最强，最符合语境。A. unusual不寻常的，程度较弱，C. unexpected意外的，强调出乎意料，而非速度快，D. unnecessary 不必要的，语义完全不符，故选B。 12. C. challenges句意：新技术不断涌现，既带来机遇，也带来挑战。both...and... 连接并列成分，opportunities（机遇）对应 challenges（挑战），形成对比。A. advantages优势， B. benefits好处，D. chances机会，均不符合句意，故选C。 13. D. curious句意：作为未来的公民，我们应该培养科学思维，对周围的世界保持好奇。stay curious about（对……保持好奇）是科学精神的核心。科学家最重要的品质之一就是好奇心。A. serious严肃的，stay serious about（对……严肃），不如 curious 贴切，B. nervous紧张的，语义不符，C. silent沉默的，语义不符，故选D。 14. A. raise 句意：科学精神鼓励我们提出问题，并通过证据寻求真理。raise questions（提出问题）是固定搭配，科学始于提问。B. answer回答问题，与“通过证据寻求真理”的递进关系不如 raise 好，C. avoid回避问题，与科学精神相反，D. repeat重复问题，语义不通，故选A。 15. C. attitude句意：只有保持这种态度，我们才能在任何领域取得进步。this 指代前文提到的科学精神（提出问题、寻求真理），这是一种态度（attitude）。A. silence沉默，与科学精神相反，B. distance距离，语义不通，D. direction方向，“保持方向”搭配不当，且不如 attitude 准确，故选C。 Unit 2 1---5 BCDAB 6---10 ACDAB 11---15 BDACD 语篇分析 本文是一篇说明文，主题为“跨文化桥梁——留学”，围绕中国学生出国留学这一社会现象展开论述。文章采用“总—分—总”结构： 第一段（第1-3空）：总述留学现象及其双重性——机遇与挑战并存 第二段（第4-6空）：分述文化冲击与适应问题 第三段（第7-8空）：分述语言障碍 第四段（第9-11空）：转折论述留学的诸多好处 第五段（第12-15空）：提出建议并总结升华 详解 1. B. popular 由“increasingly...among Chinese students”及常识可知，近年来出国留学在中国学生中越来越流行/普遍。popular 意为“受欢迎的，流行的”，符合语境。difficult（困难的）、expensive（昂贵的）、boring（无聊的）均与后文 “valuable opportunity”的积极基调不符。故选B。 2. C. broaden broaden one’s horizons 为固定搭配，意为“开阔眼界”。narrow（使变窄）、limit（限制）、reduce（减少）均为反向含义，与 “valuable opportunity”矛盾。故选C。 3. D. challenging 由 “However”这一转折词可知，本句与前文 “valuable opportunity”形成对比，指适应新环境可能是有挑战性的。challenging 意为“富有挑战性的”，准确体现留学生活的困难一面。easy（容易的）、relaxing（放松的）、simple（简单的）均与转折逻辑相悖。故选D。 4. A. expectations 由 “academic”（学术的）修饰可知，此处指学术期望/要求。academic expectations 为常见搭配，指学校或教师对学生的学业要求。excuses（借口）、explanations（解释）、experiments（实验）均不符合“文化冲击”语境下对陌生环境的描述。故选A。 5. B. lonely由 “homesick”（想家的）可知，此处需填与之情感色彩一致的词。lonely（孤独的）与homesick构成并列，描述初到异国的心理状态。excited（兴奋的）、cheerful（高兴的）、satisfied（满意的）均为积极词汇，与语境不符。故选B。 6. A. adjust adjust to 为固定搭配，意为“适应”，与前文 “adapting to a new environment”呼应。belong to（属于）、refer to（参考，提及）、object to（反对）均不符合“适应新生活方式”的语义。故选A。 7. C. struggle 由 “Language barriers can also create difficulties”及 “Even”（即使）可知，即使英语好的学生也可能努力/艰难地理解当地口音和非正式表达。struggle to do sth. 意为“艰难地做某事”，体现困难程度。agree to（同意）、fail to（未能，过于绝对）、hesitate to（犹豫做）均不如struggle贴切。故选C。 8. D. proficiency 由 “Classroom discussions and academic writing”（课堂讨论和学术写作）可知，这些活动需要更高的语言熟练度/ proficiency。language proficiency 为固定搭配，指语言 proficiency。confidence（信心）、appearance（外表）、behavior（行为）均与语言技能无关。故选D。 9. A. benefits 由 “Despite these challenges”（尽管有这些挑战）转折可知，本段论述留学的好处/益处。benefits 意为“好处，益处”，与 “challenges” 形成对比。risks（风险）、losses（损失）、debts（债务）均为负面词汇，与转折逻辑矛盾。故选A。 10. B. essential 由 “in today’s globalized world”（在当今全球化世界）可知，跨文化沟通技能是必不可少的。essential 意为“极其重要的，必不可少的”，符合语境。harmful（有害的）、optional（可选择的）、similar（相似的）均不符合全球化背景下对该技能的定位。故选B。 11. B. diverse 由 “friends from different backgrounds”（来自不同背景的朋友）可知，这有助于理解多样的/不同的观点。diverse 意为“多样的，不同的”，与different backgrounds呼应。similar（相似的）、simple（简单的）、familiar（熟悉的）均与 “different”矛盾。故选B。 12. D. mind keep an open mind 为固定搭配，意为“保持开放的心态/思想”，是提出建议时的常用表达。mouth（嘴）、door（门）、window（窗户）均无此搭配。故选D。 13. A. identity 由 “respect local customs while maintaining their own cultural...”可知，此处指在尊重当地习俗的同时保持自己的文化身份/认同。cultural identity 为固定搭配，指文化认同。memory（记忆）、history（历史）、mystery（神秘）均不符合“保持自我”的语义。故选A。 14. C. integrate integrate into 为固定搭配，意为“融入”，与 “Participating in campus activities”（参加校园活动）的目的相符。separate（分离）、divide（分开）、isolate（孤立）均为反向含义，与语境完全相反。故选C。 15. D. journey 由 “life-changing”（改变人生的）修饰及全文积极总结可知，留学是一段改变人生的旅程。journey 意为“旅程”，具有象征意义，升华主题。disaster（灾难）、mistake（错误）、accident（事故）均为负面词汇，与 “positive attitude”及全文基调严重不符。故选D。 Unit 3 1---5 DABCA 6---10 CBDAB 11---15 ACDBD 文本分析 第一段 食物的本质：食物不仅是生存所需，更承载文化意义，反映历史与价值观 第二段 中国饮食文化：多样性、精致性、地域特色（川菜 vs 粤菜）、色香味平衡、食疗理念 第三段 西方饮食文化：社交属性、法国美食 pride、葡萄酒搭配、精致摆盘 第四段 食物与节日：春节（饺子、鱼象征富足）、感恩节（火鸡、表达感恩） 第五段 全球化与传统保护：全球化带来便利，但需保护传统烹饪方法和地方饮食遗产；食物是跨文化桥梁 详解 1. D. survive首句点明主旨——食物远超“生存”层面。动词不定式表目的， “eat to survive”（为了生存而吃）是基本逻辑。compete竞争、travel旅行、study学习，均与“吃”的基本目的无关。故选D。 2. A. ingredients烹饪风格的形成基于两大因素：①当地食材（ingredients）②气候条件。两者并列，逻辑通顺。instruments乐器/工具、instructions说明、inventions发明，均与“当地”和“烹饪”关联性弱。故选A。 3. B. sophistication and 连接并列褒义词。diversity（多样性）对应 sophistication（精致、讲究、复杂性），共同体现中国菜的优点。simplicity（简单）与事实相反；weakness（弱点）、laziness（懒惰）为贬义词，与 “famous worldwide”矛盾。故选B。 4. C. culinary烹饪的、厨房的。culinary experiences 指“美食体验”，是饮食类文章的常用搭配。medical（医学的）、musical（音乐的）、physical（身体的）均偏离“食物”主题。故选C。 5. A. textures 中国烹饪讲究“色香味形/质”俱全。colors（色）、aromas（香）与 textures（口感/质地）构成完美并列。temperatures（温度）、pressures（压力）、measures（措施）均不符合烹饪美学语境。故选A。 6. C. improve前句提到 “Traditional Chinese medicine also influences food choices”（中医影响饮食选择），后句自然引出“食疗”概念——某些食材能改善健康。ignore（忽视）、damage（损害）与中医理念相反；prevent（预防）虽有道理，但 “improve health”（增进健康）更贴合“食疗”的积极意义。故选C。 7. B. characteristics本段转而介绍西方饮食文化，强调其“特点/特征”。characteristics 为中性描述词，承上启下。problems（问题）、difficulties（困难）、disadvantages（缺点）均为贬义，与后文描述的积极社交属性不符。故选B。 8. D. pride固定搭配 take pride in = 为……感到自豪。法国人以美食为傲，这是举世公认的文化特征。pleasure（快乐）虽有 take pleasure in 搭配，但后文 “considered an important part of their national identity”（国家身份的重要部分）更强调“自豪感”而非单纯的快乐。故选D。 9. A. essential葡萄酒搭配和精致摆盘是高级餐饮的“核心/必要”元素。essential = 必不可少的。useless（无用的）、harmful（有害的）与 fine dining 语境完全相反；optional（可选的）削弱了这些元素的重要性。故选A。 10. B. celebrations festivals（节日）与 celebrations（庆典）为同义复现，形成并列。食物在节庆场合的作用。competitions（比赛）、examinations（考试）、conversations（对话）与“节日”关联度低。故选B。 11. A. symbolize春节吃饺子和鱼，因为它们象征（symbolize）富足和丰饶。这是中国文化常识。criticize（批评）、organize（组织）、describe（描述）均不符合“食物寓意”的语境。故选A。 12. C. express感恩节的核心是“表达感恩”。express gratitude = 表达感激之情，固定搭配。refuse（拒绝）、hide（隐藏）、forget（忘记）均与感恩节精神背道而驰。故选C。 13. D. preserveHowever 转折，全球化带来便利的同时，也要“保护”传统。preserve = 保护、保存。forget（忘记）、destroy（破坏）、ignore（忽视）均与“保护传统”的呼吁相反。故选D。 14. B. appreciate理解食物文化帮助我们“欣赏/领会”人类文明的丰富性。appreciate = 欣赏、感激、理解。waste（浪费）、doubt（怀疑）、reject（拒绝）均与“理解”带来的积极意义相悖。故选B。 15. D. connects bridge（桥梁）的核心功能是“连接”。connects people across different cultures = 连接不同文化的人们，完美呼应 bridge 的比喻。controls（控制）、separates（分离）、confuses（使困惑）均与“桥梁”的积极意象相反。故选D。 Unit 4 1---5 ABCAD 6---10 CADBB 11---15 DBCAD 文本分析 体裁：说明文（夹叙夹议） 主题：加拿大横贯大陆的火车旅行（The Canadian 路线） 结构：总分总结构 第一段：总述加拿大地理概况和旅行价值 第二至四段：具体描述火车路线及沿途景观 第五至六段：升华主题，对比现代快节奏生活，强调火车旅行的意义 详解 1. A. enormous句意：加拿大是世界第二大国家，从大西洋到太平洋，面积当然是“巨大的”。B. tiny（微小的）、C. narrow（狭窄的）、D. limited（有限的）均与事实相反。enormous area表示“广袤的面积”。故选A。 2. B. breathtaking前文提到山脉、森林、湖泊、草原，这些都是令人惊叹的自然景观。A. boring（无聊的）、C. ordinary（普通的）与语境褒义色彩冲突；D. familiar（熟悉的）不符合对旅行者的描述逻辑。breathtaking beauty，意为“令人屏息的美景”。故选B。 3. C. impressive The Canadian 是最著名的火车路线，经过的自然奇观应当是“令人印象深刻的”。A. common（普通的）、B. simple（简单的）与 “most famous”矛盾；D. artificial（人造的）与 “natural”直接冲突。故选C。 4. A. witness句意：乘客在火车上能够“目睹”景观和气候的剧烈变化。B. ignore（忽视）、C. forget（忘记）、D. avoid（避免）均与旅行体验的逻辑相反。故选A。 5. D. stretch无边无际的麦田“延伸”至地平线，stretch to 是固定搭配。A. fall to（落到）、B. shrink to（收缩到）、C. break to（打破）均不符合麦田的视觉形象。stretch to the horizon 意为：延伸至地平线，描绘草原的辽阔。故选D。 6. C. magnificent落基山脉有白雪皑皑的山峰和深谷，应当是“雄伟壮丽的”。A. small（小的）、B. ugly（丑陋的）、D. weak（微弱的）均与雪山深谷的意象严重不符。故选C。 7. A. habitat句意：观察野生动物在它们的自然“栖息地”。B. building（建筑物）、C. factory（工厂）、D. school（学校）均不属于野生动物的生存环境。natural habitat意为：自然栖息地。故选A。 8. D. spotted 句意：熊、驼鹿、鹰经常可以从火车窗口被“发现/看到”。A. trapped（被困）、B. hidden（被隐藏）、C. lost（迷路）均不符合观察野生动物的语境。故选D。 9. B. unique后文说 “It allows passengers to slow down”，说明火车旅行与飞机相比是“独特的”体验。A. similar（相似的）与 “compared to”的对比逻辑矛盾；C. boring（无聊的）、D. dangerous（危险的）与全文赞美基调不符。故选 unique。故选B。 10. B. appreciate句意：慢下来才能真正“欣赏”大地之美。A. waste（浪费）、C. doubt（怀疑）、D. reject（拒绝）均与 “beauty”的褒义搭配冲突。appreciate the beauty 意为：欣赏美景。故选B。 11. D. atmosphere句意：车轮与铁轨有节奏的声音创造了一种宁静的“氛围”，适合沉思和放松。A. trouble（麻烦）、B. pollution（污染）为贬义；C. noise（噪音）虽然 technically 是声音，但 peaceful noise 搭配不当，且与 reflection 矛盾。故选D。 12. B. unforgettable句意：对于寻求冒险和自然之美的人来说，这段旅程是“难忘的”。A. forgettable（易忘的）与全文赞美基调完全相反；C. comfortable（舒适的）、D. uncomfortable（不舒服的）过于片面，未触及核心情感。故选B。 13. C. power句意：加拿大的广袤让我们想起大自然的“力量/威力”。A. silence（寂静）、B. weakness（弱点）、D. darkness（黑暗）均与 “vastness”（广袤）所暗示的宏大意象不匹配。故选C。 14. A. patient句意：快节奏的现代生活中，这样的旅程教会我们要“耐心”。B. impatient（不耐烦的）与文意相反；C. careless（粗心的）、D. hopeless（绝望的）与 “find joy in simple moments”的积极导向不符。 15. D. routine句意：从日常的“常规/惯例”中解脱出来。A. vacation（假期）、B. holiday（假日）与 “break from”语义重复；C. weekend（周末）范围过窄。daily routine 意为：日常惯例。故选D。 Unit 5 1---5 CBADA 6---10 BCABD 11---15 CDCAD 文本分析 本文是一篇说明文，主题为急救知识的重要性及常见急救方法。文章结构清晰： 第一段：总述急救知识的重要性 第二至五段：分别介绍四种常见紧急情况的处理方法（窒息、烧伤、出血、心脏骤停） 第六段：呼吁普及急救培训 详解 1. C. essential 根据下文 “Knowing how to respond...can mean the difference between life and death”（知道如何应对可能意味着生死之别），说明急救知识是必不可少的。A. difficult困难的，B. optional可选的，C. essential必不可少的，D. impossible不可能的。故选C。 2. B. worse急救的目的是防止伤情恶化。A. better — 急救不能让伤害“变好”，只能防止恶化，C. smaller更小，D. lighter更轻，均不符合急救语境。故选B。 3. A. arrives急救是临时措施，直到专业医疗人员到达。B. leaves离开，C. disappears消失，D. fails失败，这三个选项均与急救逻辑相反。故选A。 4. D. preventing阻塞气道会阻止呼吸。A. encouraging鼓励，B. allowing允许，C. helping帮助，均与“阻塞”矛盾。故选D。 5. A. obstruction句意：海姆立克急救法是移除阻塞物的有效技术。上文提到 “airway is blocked”（气道被阻塞），所以是移除阻塞物。B. protection保护，C. connection连接，D. direction方向，均与语境无关。故选A。 6. B. immediate句意：烧伤是另一种需要及时处理的常见伤害。A. delayed延迟的，与急救原则相反，C. unnecessary不必要的，D. occasional偶尔的，不符合医学常识。故选B。 7. C. further句意：不要直接将冰块敷在烧伤处，因为这会造成进一步损伤。A. similar相似的，B. less更少的，D. equal相等的，均不符合逻辑。故选C。 8. A. infection句意：用干净干燥的布覆盖烧伤处以防止感染。B. comfort舒适，C. beauty美观，D. strength力量，均不符合急救目的。故选A。 9. B. pressure句意：对伤口施加直接的压力。A. pleasure愉悦，C. attention注意 D. attraction吸引，均不符合句意。故选B。 10. D. assistance句意：如果出血严重且不止，立即寻求紧急医疗援助。A. punishment惩罚，B. refusal拒绝，C. complaint抱怨，均不符合句意。故选D。 11. C. stopped句意：当某人的心脏已经停止跳动时使用CPR。A. improved改善，B. started开始，D. continued继续，均不需要CPR。故选C。 12. D. supply句意：维持血液流动和氧气供应。A. shortage短缺，B. demand需求，C. waste浪费，均不符合句意。故选D。 13. C. correctly 语境：向认证教练学习CPR确保你能正确执行。A. slowly缓慢地，B. secretly秘密地，D. quietly安静地。故选C。 14. A. fresh 语境：定期培训以保持这些技能在人们脑海中保持新鲜/熟练。A. fresh新鲜的/清晰的， keep...fresh in mind使……记忆犹新，B. old旧的，C. weak弱的，D. strange陌生的。故选A。 15. D. enables 语境：不仅保护我们自己，也使我们能够帮助他人。A. delays延迟，B. prevents阻止，C. forbids禁止，均与“帮助他人”矛盾。故选D。 12 / 14 学科网（北京）股份有限公司 $