Unit 1 Science and Scientists 课后练习卷-2026-2027学年高中英语人教版选择性必修第二册

人教版高中英语选择性必修第二册 Unit 1 Science and Scientists 课后练习卷 （阅读理解 + 完形填空 + 七选五 + 语法填空） （解析版） 一、阅读理解（共1篇，4小题） （福建省莆田仙游第一中学2025-2026学年高二上学期第一次月考英语试题 ） The scientist's job is to figure out how the world works, to “torture (拷问)” Nature to reveal (揭露) her secrets, as the 17th century philosopher Francis Bacon described it. But who are these people in the lab coats and how do they work? It turns out that there is a good deal of mystery surrounding the mystery-solvers. “One of the greatest mysteries is the question of what it is about human beings—brains, education, culture etc. that makes them capable of doing science at all,” said Colin Allen, a scientist at Indiana University. Two vital elements seem to be necessary to make a scientist: the curiosity to seek out mysteries and the creativity to solve them. “Scientists exhibit a heightened level of curiosity,” reads a 2007 report on scientific creativity. “They go further and deeper into basic questions showing a passion for knowledge for its own sake.” Max Planck, one of the fathers of quantum (量子) physics, once said, the scientist “must have a vivid and intuitive imagination, for new ideas are not produced by deduction (推论), but by an artistically creative imagination.” But others disagree with this universal scientific mind. They believe that scientists have special abilities that set them apart. Discovering these abilities may be hard, Allen thinks, as many scientists will be unwilling to reveal them and would prefer to preserve the mystery of creativity, fearing that if it became an object of study it would lose its magic. But for Allen, this is all part of a bigger question of what lies behind anyone's behavior. “We are only just beginning to understand how the characteristics of creatures, including ourselves, aren't the fixed products of either genes or of environment/culture, but each of us is the product of a continual interactive process in which we help build the environments that in turn shape us,” he said. “As long as our best technology for seeing inside the brain requires subjects to lie nearly still while surrounded by a giant magnet (磁铁), we're only going to make limited progress on these questions,” Allen said. 1. Why does the author mention Max Planck in paragraph 3? A. To introduce a famous scientist. B. To stress the role of creativity in science. C. To illustrate what is curiosity in science. D. To compare different views on science. 2. What do Allen's words in the last two paragraphs suggest? A. Our interaction with the environment shapes us. B. Technology reveals much about human behavior. C. We are passively influenced by genes and culture. D. Human behavior is changeable and unpredictable. 3. What is Allen's attitude to the current study on the human brain? A. Pessimistic. B. Indifferent. C. Approving. D. Uncertain. 4. Which is the most suitable title for the text? A. Who Are the Mystery-Solvers B. Scientists Are Not Born but Made C. Great Mystery: What Makes a Scientist D. Solving Mysteries: Inside a Scientist's Mind 【答案与解析】 1.B 第三段引用普朗克的话：科学家“必须有生动而直觉的想象力，因为新思想不是通过推论产生的，而是通过艺术性的创造性想象力产生的”。这强调的是创造力（creativity）在科学中的作用，而非介绍名人本身。 重点：推理判断题：举例目的题——引用名人名言通常服务于段落论点，本段论点为“creativity to solve mysteries”。 2.A Allen说我们“不是基因或环境/文化的固定产物，而是一个持续互动过程的产物——我们帮助构建环境，环境反过来塑造我们”。这说明人与环境的互动塑造了我们。 重点：细节理解题：注意“interactive process”和“build the environments that in turn shape us”是核心同义替换。 3.A Allen说“只要我们观察大脑内部的最佳技术仍要求受试者在巨大磁铁中几乎一动不动地躺着，我们在这些问题上只会取得有限进展”。这表达了对当前脑研究技术局限性的悲观看法。 重点：观点态度题：“only going to make limited progress”传递出悲观/局限的态度。 4.C 全文围绕“是什么造就了科学家”这一核心谜团展开：开头提出“谁是这些穿白大褂的人？他们如何工作？”，中间讨论好奇心与创造力两大要素，结尾仍在追问人类行为背后的奥秘。C项“伟大的谜团：什么造就了科学家”最能概括全文。 重点：标题归纳题：须覆盖全文核心讨论对象（what makes a scientist），而非仅某一段落。 二、完形填空（共1篇，15小题） I never thought I'd find my calling in a petri dish. In high school, I loved biology but saw science as a mountain of facts to memorize. My perspective changed in my first year of university, in Professor Ardell's introductory lab. Our task seemed simple: test the effect of various substances on bacterial growth. My partner and I designed our experiment, carefully preparing agar plates with our chosen compounds. We predicted which would inhibit growth. After incubation, most plates showed clear inhibition zones—except one. Around a drop of common plant extract, the bacteria grew… but in a strange, stunted pattern, forming a perfect, shimmering ring. It was beautiful and completely ___1___. According to our hypothesis, this plate was a failure. My partner wanted to discard it and focus on the “successful” results. But I was ___2___. That odd ring whispered a question. I took the plate to Professor Ardell. Instead of dismissing it, her eyes lit up. “A failure?” she said. “No. This is where science gets interesting. Your hypothesis was wrong, but nature has shown you something new. Now you must ask why.” With her encouragement, I spent the next weeks in the library and the lab, ___3___ my “failed” experiment. I learned the extract contained a compound that might interfere with bacterial communication, a process called quorum sensing. Perhaps it didn't kill the bacteria but ___4___ their ability to coordinate, causing the strange growth pattern. I devised new experiments to test this idea. Most yielded ambiguous results, but one suggested a slight ___5___ in virulence factor production—a hint I might be on the right track. I presented my messy, inconclusive findings at a small departmental symposium. My voice shook. My graphs weren't pretty. But when I finished, Professor Ardell nodded, not with praise for a polished result, but with ___6___ for the process. “You've learned the most important lesson,” she said later. “Science isn't about being right the first time. It's about ___7___ to the evidence, even when it leads you away from your expected path.” That single “failed” plate became the ___8___ of my undergraduate thesis. It didn't lead to a groundbreaking discovery, but it changed me. I learned that a scientist is not a knower, but a ___9___. The core of the scientific spirit is not certainty, but a disciplined curiosity—the willingness to be ___10___ by an unexpected result and to pursue it with rigor. Now, as a graduate student, I keep a photo of that first petri dish on my desk. It reminds me that progress is often messy and nonlinear. It reminds me to listen to the data, especially when it ___11___. The greatest discoveries often begin not with a shout of “Eureka!” but with a quiet, puzzled “Hmm… that's odd.” Professor Ardell taught me that the true mark of a scientist is not never failing, but how one responds to failure: with curiosity, resilience, and an unwavering ___12___ to ask the next question. That lesson extends ___13___ the lab. In life, we often face unexpected results—plans that fail, paths that diverge. The scientific mindset teaches us to treat these not as dead ends, but as data points. To analyze, adapt, and formulate a new ___14___. It teaches humility before the complexity of the world and perseverance in seeking understanding. I am not just training to be a biologist; I am learning to engage with the world as a scientist: critically, curiously, and with the quiet courage to follow the evidence, ___15___ it may lead. 1. A. expected B. unexplained C. boring D. dangerous 2. A. satisfied B. fascinated C. ashamed D. annoyed 3. A. forgetting B. defending C. investigating D. repeating 4. A. enhanced B. blocked C. recorded D. ignored 5. A. increase B. decrease C. stability D. variation 6. A. approval B. pity C. criticism D. indifference 7. A. clinging B. listening C. explaining D. contributing 8. A. end B. foundation C. opposite D. summary 9. A. teacher B. leader C. learner D. critic 10. A. discouraged B. embarrassed C. surprised D. bored 11. A. confirms our beliefs B. is beautifully organized C. contradicts expectations D. supports a famous theory 12. A. refusal B. commitment C. ability D. request 13. A. beyond B. within C. towards D. against 14. A. excuse B. hypothesis C. conclusion D. story 15. A. wherever B. whenever C. however D. whoever 【答案与解析】 1. B 那个奇怪的培养皿结果既美丽又“无法解释”（unexplained），与后面“According to our hypothesis, this plate was a failure”形成呼应。 重点：前文“strange, stunted pattern”提示结果出乎意料、无法解释。 2. B 搭档想丢弃失败培养皿，但作者被这个奇怪的环“迷住了”（fascinated），因为它“whispered a question”。 重点：转折词But提示与搭档态度相反；fascinated表示被吸引、着迷。 3. C 在教授鼓励下，作者花数周时间在图书馆和实验室“调查研究”（investigating）那个“失败”的实验。 重点：investigate = 系统调查研究，符合科研语境。 4. B 该提取物没有杀死细菌，而是“阻断了”（blocked）它们协调沟通的能力，从而导致奇怪的生长模式。 重点：前文“interfere with bacterial communication”与block同义替换。 5. B 一个实验提示毒力因子产生有轻微“下降”（decrease），暗示研究方向可能正确。 重点：提取物抑制细菌交流→毒力因子应减少，逻辑一致。 6. A 教授点头赞许，不是因为漂亮的结果，而是对这个过程表示“认可”（approval）。 重点：not…but…结构：不是赞扬结果，而是认可过程。 7. B 科学不是第一次就正确，而是“倾听”（listening）证据，即使证据带你偏离预期路径。 重点：listen to the evidence为固定搭配，呼应后文“listen to the data”。 8. B 那个“失败”的培养皿成了作者本科论文的“基础”（foundation）。 重点：become the foundation of = 成为…的基础。 9. C 科学家不是已知者（knower），而是“学习者”（learner）。 重点：与knower形成对比，科学精神核心是持续学习。 10. C 科学精神核心是训练有素的好奇心——愿意对意外结果感到“惊讶”（surprised）并严谨追问。 重点：unexpected result → surprised，因果逻辑。 11. C 作者提醒自己倾听数据，尤其是当数据“与预期矛盾”（contradicts expectations）时。 重点：呼应前文“leads you away from your expected path”。 12. B 真正的科学家标志是以好奇心、韧性和坚定不移的“承诺”（commitment）去问下一个问题来回应失败。 重点：unwavering commitment to do sth. = 坚定不移地做某事。 13. A 这个教训延伸到实验室“之外”（beyond）——生活中也适用科学思维。 重点：extend beyond = 延伸到…之外。 14. B 科学思维教会我们把意外当作数据点，去分析、调整并形成新的“假说”（hypothesis）。 重点：hypothesis是科学方法核心概念，与全文主题呼应。 15. A 带着勇气追随证据，“无论它引向何方”（wherever it may lead）。 重点：wherever引导让步状语从句，表“无论哪里”。 三、七选五（共1篇，5小题） （湖北省武汉市武钢三中2025-2026学年高二上学期10月英语月考试题） With data shaping everything from healthcare breakthroughs to the latest entertainment trends, data scientists are at the heart of some of the most exciting innovations happening right now. ___1___ In the simplest terms, data scientists are the problem-solvers of the digital age. They collect, analyze and interpret complex datasets to help businesses solve real-world problems. ___2___ Whether it's uncovering hidden patterns in customer data, improving product quality or helping businesses make smarter decisions, data scientists are always deeply engaged in it. Data scientists are highly skilled in coding. ___3___ It's also used to automate repetitive tasks, freeing up time for more creative work. While not every task will involve coding, it's still a core skill that enables data scientists to obtain insights efficiently and effectively. It's the foundation upon which they build the models and tools that power business innovations. ___4___ With more and more data being generated every day, skilled data professionals are more popular than ever. This rapid growth is driven by the increasing need for data to inform smarter decision-making across every industry. Roles in the field span a wide range, including machine learning engineer, data analyst, quantitative researcher and business intelligence specialist. With AI moving at lightning speed, it's natural to wonder if data scientists could one day be replaced by AI. While AI can automate repetitive tasks like data preparation, it doesn't have the critical thinking and strategic decision-making that human data scientists bring to the table. ___5___ If you have a passion for coding and get excited about turning data into real-world solutions, data science might just be your perfect match. A. Are data scientists in demand? B. Coding isn't just for creating instructions. C. The life of a data scientist is anything but dull. D. They excel at turning raw data into actionable insights. E. So, rather than replacing data scientists, AI will help them. F. But what is it actually like to be a data scientist in today's world? G. However, their work could not always lead to practical solutions. 【答案与解析】 1. F 上文指出数据科学家处于当今创新核心，F项“但在当今世界，成为一名数据科学家到底是什么样的呢？”提出问题，自然引出下文对数据科学家角色的具体描述，承上启下。 重点：七选五解题：看空格前后逻辑——上文讲重要性，下文讲具体工作，空格处应为过渡提问句。 2. D 上文说数据科学家收集、分析和解读复杂数据集以解决实际问题。D项“他们擅长将原始数据转化为可操作的见解”直接对应上文描述，进一步解释核心能力。 重点：同义复现：collect, analyze, interpret → turning raw data into actionable insights。 3. B 上文说数据科学家精通编码，下文说“它还被用来自动化重复任务”。B项“编码不仅仅是为了创建指令”承上启下，引出编码的其他用途。 重点：后句It's also used to…中的also提示前句应讲coding的第一个用途。 4. A 下文说“随着每天生成越来越多的数据，熟练的数据专业人才比以往任何时候都更受欢迎”。A项“数据科学家有需求吗？”提出问题，引出下文需求增长的描述。 重点：空格在段首——该段为总分结构，后文全在讲demand/growth。 5. E 上文说AI不具备人类数据科学家的批判性思维和战略决策能力。E项“因此，AI不会取代数据科学家，而是会帮助他们”承接上文，进一步解释AI与数据科学家的关系。 重点：因果逻辑：AI lacks critical thinking → AI will HELP, not replace。 四、语法填空（共1篇，10小题） （山东省菏泽市鄄城县第一中学2025-2026学年高二上学期9月月考） Born in Ningbo, China, Tu Youyou graduated from Peking University Medical School in 1955. In 1967, she ___1___ (choose) into a research team ___2___ was formed by the Chinese government with the aim of discovering a new treatment ___3___ malaria. She and her teammates examined over 2,000 old medical texts, ___4___ (evaluate) 280,000 plants for their medical properties, and tested 380 distinct ancient Chinese medical treatments that showed promise in the fight against malaria. As a ___5___ (commit) and patient scientist, she never acknowledged defeat, whatever difficulty she met. After ___6___ (fail) to draw out useful extract by boiling the sweet wormwood, she began even ___7___ (careful) thinking and research work. She drew ___8___ conclusion that boiling the sweet wormwood ___9___ (destroy) its medical properties. So she used a lower temperature ___10___ (draw) out the extract and finally she succeeded. 【答案与解析】 （注：本篇语法填空答案编者按语法规则推导，官方答案待补充核实。） 1. was chosen 被动语态：she与choose之间是被动关系（她被选入研究团队），时间1967年为过去时，故用一般过去时的被动语态。 重点：谓语动词考点：主语she是choose的承受者→被动；时间状语In 1967→一般过去时。 2. that / which 定语从句：先行词为a research team（指物），关系词在从句中作主语，故用that或which。 重点：定语从句：先行team指物，从句缺主语→that/which。 3. for 固定搭配：a treatment for malaria 表示“治疗疟疾的方法”，treatment后接介词for。 重点：介词固定搭配：a treatment for + 疾病。 4. evaluated 并列谓语：与examined和tested并列，同为一般过去时，故用evaluated。 重点：并列结构：examined, ___4___, and tested → 三个并列谓语动词形式一致。 5. committed 形容词作定语：修饰名词scientist，需将动词commit变为形容词committed（尽心尽力的），与patient并列。 重点：词类转换：commit(v.) → committed(adj.) 修饰scientist。 6. failing 介词后接动名词：After为介词，后接动名词failing。 重点：语法规则：介词after后必须接doing形式。 7. more careful 比较级：even修饰比较级，表示“更加仔细的思考”，careful的比较级为more careful。 重点：even + 比较级：even more careful。 8. a 固定搭配：draw a conclusion 表示“得出结论”，需用不定冠词a。 重点：固定短语：draw a conclusion。 9. had destroyed / destroyed 时态：屠呦呦得出结论时，煮沸破坏药性这一动作已发生，可用过去完成时had destroyed表示“过去的过去”；亦可填一般过去时destroyed。 重点：时态考点：destruction发生在drew a conclusion之前→过去的过去→had destroyed。 10. to draw 非谓语动词：use sth. to do sth. 结构，用不定式to draw表目的（用更低温度来提取提取物）。 重点：非谓语：use a lower temperature to draw out = 用低温来提取，不定式表目的。 学科网（北京）股份有限公司 $ 人教版高中英语选择性必修第二册 Unit 1 Science and Scientists 课后练习卷 （阅读理解 + 完形填空 + 七选五 + 语法填空） （原卷版） 一、阅读理解（共1篇，4小题） （福建省莆田仙游第一中学2025-2026学年高二上学期第一次月考英语试题 ） The scientist's job is to figure out how the world works, to “torture (拷问)” Nature to reveal (揭露) her secrets, as the 17th century philosopher Francis Bacon described it. But who are these people in the lab coats and how do they work? It turns out that there is a good deal of mystery surrounding the mystery-solvers. “One of the greatest mysteries is the question of what it is about human beings—brains, education, culture etc. that makes them capable of doing science at all,” said Colin Allen, a scientist at Indiana University. Two vital elements seem to be necessary to make a scientist: the curiosity to seek out mysteries and the creativity to solve them. “Scientists exhibit a heightened level of curiosity,” reads a 2007 report on scientific creativity. “They go further and deeper into basic questions showing a passion for knowledge for its own sake.” Max Planck, one of the fathers of quantum (量子) physics, once said, the scientist “must have a vivid and intuitive imagination, for new ideas are not produced by deduction (推论), but by an artistically creative imagination.” But others disagree with this universal scientific mind. They believe that scientists have special abilities that set them apart. Discovering these abilities may be hard, Allen thinks, as many scientists will be unwilling to reveal them and would prefer to preserve the mystery of creativity, fearing that if it became an object of study it would lose its magic. But for Allen, this is all part of a bigger question of what lies behind anyone's behavior. “We are only just beginning to understand how the characteristics of creatures, including ourselves, aren't the fixed products of either genes or of environment/culture, but each of us is the product of a continual interactive process in which we help build the environments that in turn shape us,” he said. “As long as our best technology for seeing inside the brain requires subjects to lie nearly still while surrounded by a giant magnet (磁铁), we're only going to make limited progress on these questions,” Allen said. 1. Why does the author mention Max Planck in paragraph 3? A. To introduce a famous scientist. B. To stress the role of creativity in science. C. To illustrate what is curiosity in science. D. To compare different views on science. 2. What do Allen's words in the last two paragraphs suggest? A. Our interaction with the environment shapes us. B. Technology reveals much about human behavior. C. We are passively influenced by genes and culture. D. Human behavior is changeable and unpredictable. 3. What is Allen's attitude to the current study on the human brain? A. Pessimistic. B. Indifferent. C. Approving. D. Uncertain. 4. Which is the most suitable title for the text? A. Who Are the Mystery-Solvers B. Scientists Are Not Born but Made C. Great Mystery: What Makes a Scientist D. Solving Mysteries: Inside a Scientist's Mind 二、完形填空（共1篇，15小题） I never thought I'd find my calling in a petri dish. In high school, I loved biology but saw science as a mountain of facts to memorize. My perspective changed in my first year of university, in Professor Ardell's introductory lab. Our task seemed simple: test the effect of various substances on bacterial growth. My partner and I designed our experiment, carefully preparing agar plates with our chosen compounds. We predicted which would inhibit growth. After incubation, most plates showed clear inhibition zones—except one. Around a drop of common plant extract, the bacteria grew… but in a strange, stunted pattern, forming a perfect, shimmering ring. It was beautiful and completely ___1___. According to our hypothesis, this plate was a failure. My partner wanted to discard it and focus on the “successful” results. But I was ___2___. That odd ring whispered a question. I took the plate to Professor Ardell. Instead of dismissing it, her eyes lit up. “A failure?” she said. “No. This is where science gets interesting. Your hypothesis was wrong, but nature has shown you something new. Now you must ask why.” With her encouragement, I spent the next weeks in the library and the lab, ___3___ my “failed” experiment. I learned the extract contained a compound that might interfere with bacterial communication, a process called quorum sensing. Perhaps it didn't kill the bacteria but ___4___ their ability to coordinate, causing the strange growth pattern. I devised new experiments to test this idea. Most yielded ambiguous results, but one suggested a slight ___5___ in virulence factor production—a hint I might be on the right track. I presented my messy, inconclusive findings at a small departmental symposium. My voice shook. My graphs weren't pretty. But when I finished, Professor Ardell nodded, not with praise for a polished result, but with ___6___ for the process. “You've learned the most important lesson,” she said later. “Science isn't about being right the first time. It's about ___7___ to the evidence, even when it leads you away from your expected path.” That single “failed” plate became the ___8___ of my undergraduate thesis. It didn't lead to a groundbreaking discovery, but it changed me. I learned that a scientist is not a knower, but a ___9___. The core of the scientific spirit is not certainty, but a disciplined curiosity—the willingness to be ___10___ by an unexpected result and to pursue it with rigor. Now, as a graduate student, I keep a photo of that first petri dish on my desk. It reminds me that progress is often messy and nonlinear. It reminds me to listen to the data, especially when it ___11___. The greatest discoveries often begin not with a shout of “Eureka!” but with a quiet, puzzled “Hmm… that's odd.” Professor Ardell taught me that the true mark of a scientist is not never failing, but how one responds to failure: with curiosity, resilience, and an unwavering ___12___ to ask the next question. That lesson extends ___13___ the lab. In life, we often face unexpected results—plans that fail, paths that diverge. The scientific mindset teaches us to treat these not as dead ends, but as data points. To analyze, adapt, and formulate a new ___14___. It teaches humility before the complexity of the world and perseverance in seeking understanding. I am not just training to be a biologist; I am learning to engage with the world as a scientist: critically, curiously, and with the quiet courage to follow the evidence, ___15___ it may lead. 1. A. expected B. unexplained C. boring D. dangerous 2. A. satisfied B. fascinated C. ashamed D. annoyed 3. A. forgetting B. defending C. investigating D. repeating 4. A. enhanced B. blocked C. recorded D. ignored 5. A. increase B. decrease C. stability D. variation 6. A. approval B. pity C. criticism D. indifference 7. A. clinging B. listening C. explaining D. contributing 8. A. end B. foundation C. opposite D. summary 9. A. teacher B. leader C. learner D. critic 10. A. discouraged B. embarrassed C. surprised D. bored 11. A. confirms our beliefs B. is beautifully organized C. contradicts expectations D. supports a famous theory 12. A. refusal B. commitment C. ability D. request 13. A. beyond B. within C. towards D. against 14. A. excuse B. hypothesis C. conclusion D. story 15. A. wherever B. whenever C. however D. whoever 三、七选五（共1篇，5小题） （湖北省武汉市武钢三中2025-2026学年高二上学期10月英语月考试题） With data shaping everything from healthcare breakthroughs to the latest entertainment trends, data scientists are at the heart of some of the most exciting innovations happening right now. ___1___ In the simplest terms, data scientists are the problem-solvers of the digital age. They collect, analyze and interpret complex datasets to help businesses solve real-world problems. ___2___ Whether it's uncovering hidden patterns in customer data, improving product quality or helping businesses make smarter decisions, data scientists are always deeply engaged in it. Data scientists are highly skilled in coding. ___3___ It's also used to automate repetitive tasks, freeing up time for more creative work. While not every task will involve coding, it's still a core skill that enables data scientists to obtain insights efficiently and effectively. It's the foundation upon which they build the models and tools that power business innovations. ___4___ With more and more data being generated every day, skilled data professionals are more popular than ever. This rapid growth is driven by the increasing need for data to inform smarter decision-making across every industry. Roles in the field span a wide range, including machine learning engineer, data analyst, quantitative researcher and business intelligence specialist. With AI moving at lightning speed, it's natural to wonder if data scientists could one day be replaced by AI. While AI can automate repetitive tasks like data preparation, it doesn't have the critical thinking and strategic decision-making that human data scientists bring to the table. ___5___ If you have a passion for coding and get excited about turning data into real-world solutions, data science might just be your perfect match. A. Are data scientists in demand? B. Coding isn't just for creating instructions. C. The life of a data scientist is anything but dull. D. They excel at turning raw data into actionable insights. E. So, rather than replacing data scientists, AI will help them. F. But what is it actually like to be a data scientist in today's world? G. However, their work could not always lead to practical solutions. 四、语法填空（共1篇，10小题） （山东省菏泽市鄄城县第一中学2025-2026学年高二上学期9月月考） Born in Ningbo, China, Tu Youyou graduated from Peking University Medical School in 1955. In 1967, she ___1___ (choose) into a research team ___2___ was formed by the Chinese government with the aim of discovering a new treatment ___3___ malaria. She and her teammates examined over 2,000 old medical texts, ___4___ (evaluate) 280,000 plants for their medical properties, and tested 380 distinct ancient Chinese medical treatments that showed promise in the fight against malaria. As a ___5___ (commit) and patient scientist, she never acknowledged defeat, whatever difficulty she met. After ___6___ (fail) to draw out useful extract by boiling the sweet wormwood, she began even ___7___ (careful) thinking and research work. She drew ___8___ conclusion that boiling the sweet wormwood ___9___ (destroy) its medical properties. So she used a lower temperature ___10___ (draw) out the extract and finally she succeeded. 学科网（北京）股份有限公司 $