Unit 7 Careers Lesson 2-2025-2026学年高中英语词义辨析及同义替换精讲选择性必修第三册（北师大版）

高中选修3北师大版 【核心词汇精讲】 Unit 7:Careers Lesson 2 核心词汇 Unit 7:Careers Lesson 2 词义辨析及同义替换精讲 本单元核心词汇 一、全部单元单词 trend/trend/n.趋势，趋向，倾comprehension/komprI'henn/AI(artificial intelligence)/,er'a/ 向 n.理解（力）：阅读理解测试 n.人工智能 financial/far'nen/adj.财政的，bio-technology/,barautek'nplad3 i/motivated/maotrvertid/adj..积 金融的：财务的 n.生物技术 极的，主动的 logical/'lDd3kl/adj.合乎逻辑guarantee/.ger3n'ti:/t.保证， 的：合情合理的 担保；n.保修单 词义辨析及同义替换 1. logical/'Ipd3ikl/adj.合乎逻辑的：合情合理的 词义辨析： logical:侧重指符合逻辑规则、推理严密，强调思维的条理性和合理性，多用于形容论证、结论 或思考方式。 reasonable:侧重指公平、有道理，符合常识或情理，语气较缓和，可形容人、要求或行为。 同义替换： reasonable,rational 例句： It is logical to assume that the project will be completed on time with proper planning. 真题链接：（北师大版高中选修3同步练习） His argument was so that everyone agreed with him. A.logical B.funny C.strange（答案：A) 2.guarantee/,gaeran'ti:/t.保证，担保；n.保修单 词义辨析： guarantee(v.):指对产品质量、服务或结果做出正式承诺，确保某事会发生或符合标准，语气 较正式。 promise(v.):泛指口头或书面承诺做某事，语气较灵活，可用于个人或非正式场合。 1 高中选修3北师大版 【核心词汇精讲】 Unit 7:Careers Lesson 2 同义替换： promise,ensure 例句： The company guarantees a full refund if customers are not satisfied with the product 真题链接：（北师大版高中选修3单元测试） The manufacturer that the new phone will last for at least two years without any problems. A.suggests B.guarantees C.forgets (答案：B) 3.motivated/'mautIveitid/adj.积极的，主动的 词义辨析： motivated:侧重指人因内在动力（如兴趣、目标)或外在激励而表现出积极性，强调主动采取 行动的状态。 active:泛指“活跃的、积极的”，侧重参与度高，不一定强调内在动力，可形容人或活动。 同义替换： active,enthusiastic 例句： Motivated students often achieve better results by taking the initiative in learning. 真题链接：（北师大版高中选修3阅读理解改编） The survey shows that students who set clear goals are more to complete their tasks on time A.motivated B.lazy C.worried(答案：A) 4.tend/rend/n.趋势，趋向，倾向 词义辨析： trend:指事物发展的总体方向或流行趋势，尤指社会、经济或文化领域的变化，具有一定持续 性。 tendency:侧重指人或事物自然呈现的倾向或偏好，语气较客观，可用于描述习惯或规律。 同义替换： tendency,tendency 例句： The trend of working from home has become increasingly popular in recent years. 真题链接：（北师大版高中选修3完形填空） Experts predict a towards more sustainable energy sources in the next decade. A.trend B.problem C.secret(答案：A) 5.financial/fa'nen/adj.财政的，金融的；财务的 词义辨析： financial::侧重与金钱、财政或金融体系相关，如财政政策、金融市场，多用于正式语境。 economic:侧重与经济整体相关，如经济增长、经济形势，范围更广，涵盖生产、分配等领域。 高中选修3北师大版 【核心词汇精讲】 Unit 7:Careers Lesson 2 同义替换： monetary,fiscal 例句： The government has announced new financial measures to support small businesses. 真题链接：（北师大版高中选修3阅读理解） The report focuses on the challenges faced by developing countries in the global market A.financial B.physical C.medical (答案：A) 6.comprehension/kompri'henn/n.理解（力）：阅读理解测试 词义辨析： comprehension:特指对文字、语言或信息的理解能力，也可指阅读理解测试，强调“领会含义” 的过程。 understanding:泛指对事物的理解或认识，可用于人、情感或抽象概念，语气较宽泛。 同义替换： understanding,grasp 例句： Good reading comprehension is essential for success in academic studies 真题链接：（北师大版高中选修3单元测试） The English exam includes a section where students need to answer questions based on a passage A.comprehension B.translation C.spelling(答案：A) 7.bio-technology/,barautek'nplad3i/n.生物技术 词义辨析： bio-technology:指利用生物体或其成分（如细胞、基因）开发产品或技术的学科，属于科技领 域的专业术语。 technology:泛指“技术、工艺”，涵盖所有应用科学知识解决实际问题的方法和工具，范围极 广。 同义替换： biotech(缩写) 例句： Bio-technology has made significant progress in the development of new medicines. 真题链接：（北师大版高中选修3科普阅读改编） is widely used in agriculture to improve crop yields and resistance to diseases. A.Bio-technology B.History C.Music（答案：A) 8.AI(artificial intelligence)/,er'a/n.人工智能 词义辨析： AI(artificial intelligence):特指通过计算机模拟人类智能的技术，能执行需要人类智慧的任务（如 高中选修3北师大版 【核心词汇精讲】 Unit 7:Careers Lesson 2 推理、学习)，是专业术语。 robot: 指能自动执行任务的机器装置，强调物理实体，不一定具备AI的智能水平。 同义替换： machine intelligence 例句： AI is increasingly used in industries such as healthcare and finance to optimize processes. 真题链接：（北师大版高中选修3话题写作） Many people believe that will play a key role in shaping the future of work. A.AI B.books C.sports (答案：A) 综合演练 综合练习 一、 单项选择 1.Her analysis of the problem helped the team find a quick solution. A.logical B.reasonable C.funny 2.The store that all products can be returned within 30 days if they are damaged. A.promises B.guarantees C.suggests 3.Students who are by their interests usually perform better in practical tasks A.active B.motivated C.worried 4.Environmentalists are closely watching the of reducing plastic use worldwide. A.trend B.tendency C.secret 5.The lecture focused on the impact of AI development on global markets. A.financial B.economic C.medical 高中选修3北师大版 【核心词汇精讲】 Unit 7:Careers Lesson 2 6.This English course includes daily exercises to improve students'reading skills. A.comprehension B.understanding C.translation has allowed scientists to create new crops that are resistant to harsh weather. A.Technology B.Bio-technology C.History 8.Many companies are now investing into automate repetitive tasks in factories. A.robots B.AI C.books 二、根据句意及汉语提示完成单词 1.The (of online shopping has grown rapidly in recent years. 2.Good (理解力)of the text is necessary before answering the questions 3.The government has introduced new (财政的)policies to support small businesses. (生物技术)is widely used in the medical field to develop new drugs.. 5.She is highly (积极的)and always volunteers to lead group projects. 6.The company offers a two-year (保修单)for all its electronic products. 三、用所给单词的适当形式填空 1.He made a _(logical)argument that convinced everyone in the meeting. 2.The manager (guarantee)that the project will be finished by next month J3 (motivate)students often spend extra time researching topics they are interested in. 4.The (develop)of AI technology has changed many industries. 5.Reading more books can improve your reading (comprehend) 四、完成句子 1.It is (合乎逻辑的)to prepare for the exam in advance. 高中选修3北师大版 【核心词汇精讲】 Unit 7:Careers Lesson 2 2.The manufacturer )the quality of this product for three years. 3. Students with clear goals are more (积极的)to learn independently. 4.The (of working from home is becoming more popular. 五、语篇填空 阅读下面短文，在空白处填入一个适当的单词或用括号内单词的正确形式填空，使短文通顺、连 贯。 With the rapid development of technology,two fields have stood out: (1)bi0- technology/technology)and(2)(AI/robot).Bio-technology uses living organisms to create new products,such as disease-resistant crops,which has changed agriculture.On the other hand,AI, or (3)(machine intelligence/artificial intelligence),is being used in finance to analyze (4)(financial/economic)data and predict market changes. These trends have also influenced education.Schools now focus on improving students' (5)(comprehension/understanding)of scientific texts and encouraging(6)(motivated/active) learning.Teachers often use real-world examples,like how AI(7)(guarantees/promises)faster data processing,to make lessons more engaging.As a result,students are more (8)(logi- cal/reasonable)in their thinking and better prepared for future challenges. 参考答案 I.单项选择 1.A2B 3B4.A5.A6.A7.B8B Ⅱ.根据句意及汉语提示完成单词 1.trend 2.comprehension 3.financial 4.Bio-technology 5.motivated 6.guarantee L用所给单词的适当形式填空 1.logical 2.guarantees 3.Motivated 4.development 5.comprehension V.完成句子 1.logical 2.guarantees 3.motivated 4.trend V.语篇填空 1.bio-technology 2.AI 3.artificial intelligence 4.financial 5.comprehension 6.motivated 7.guarantees 8.logical 6