Unit 2 Digital humans 单词短语句型语法（教材考点精练）英语沪教版2020选择性必修第二册

Unit 2 Digital humans 教材考点精练 单元重点单词短语句型语法 (时间：60分钟，满分：100分) 一、用括号内所给单词的适当形式填空(本大题共40小题，每小题1分，共40分) 1. Digital humans, which are ____________(create) with advanced AI technology, are now widely used in various fields. 2. It is reported that the new digital human____________ (able) to interact with humans naturally will be launched next month. 3. The engineer spent three months____________ (improve) the facial expressions of the digital human to make them more realistic. 4. This digital human can not only speak multiple languages but also____________ (understand) the emotions of human speakers. 5. Many companies are investing heavily in digital human technology____________ (meet) the growing market demand. 6. The performance of the digital human at the concert last night ____________(impress) a large number of audience. 7. Do you know the reason why digital humans____________ (become) more and more popular in recent years? 8. The team is working on a new function that allows the digital human ____________(adapt) to different communication scenarios automatically. 9. Digital humans ____________(use) in customer service can save a lot of time for both companies and customers. 10. It is still unknown whether digital humans____________ (replace) human workers in some industries in the future. 11. The designer paid great attention to every detail when____________ (design) the appearance of the digital human. 12. A digital human with good communication skills____________ (be) very helpful in remote education. 13. We should consider the ethical problems that____________ (arise) from the wide use of digital humans. 14. The digital human host greeted the guests in a friendly voice as soon as they ____________(enter) the hall. 15. Scientists are doing research on how____________ (make) digital humans have a better sense of empathy. 16. The success of this digital human project depends ____________(great) on the cooperation of the whole team. 17. Digital humans are often compared ____________real humans in terms of communication skills. 18. It took the researchers two years____________ (develop) the core algorithm of the digital human. 19. The digital human singer is so popular that her songs have been downloaded millions ____________times. 20. This new type of digital human is different ____________the previous one in its interactive ability. 21. The company decided to set up a special department____________ (deal) with the research and development of digital humans. 22. Digital humans can help people____________ (solve) some difficult problems in daily life. 23. The number of digital humans used in the media industry____________ (increase) rapidly in the past five years. 24. It is important for us____________ (learn) about the advantages and disadvantages of digital humans. 25. The digital human teacher explained the math problem again and again____________ (ensure) that all students could understand it. 26. Many people are interested in____________ (know) how digital humans can simulate human body movements. 27. The digital human nurse can remind patients____________ (take) their medicine on time every day. 28. This digital human has the ability ____________(recognize) thousands of different human voices. 29. The development of digital humans is closely related____________the progress of AI and computer vision technology. 30. It is surprising that the digital human can finish the task____________ (efficient) than a human worker. 31. If we____________ (not control) the use of digital humans properly, it may bring some negative effects to society. 32. The digital human actor won an award for his excellent performance, ____________made many people surprised. 33. By the time we finish this course, we____________ (learn) all the basic knowledge about digital humans. 34. The digital human's voice sounds so natural that many people can't tell it ____________a real human's voice. 35. Some experts suggest that we____________ (establish) a set of rules to regulate the development of digital humans. 36. The digital human was designed ____________a famous singer, so it looks exactly like her. 37. As long as we use digital humans in a correct way, they____________ (bring) more benefits to our life. 38. The team leader asked who____________(be) responsible for testing the new function of the digital human. 39. Digital humans ____________(equip) with advanced sensors can collect and analyze human behavior data in real time. 40. I wonder if the digital human____________ (be) able to have independent thinking like humans in the near future. 二、根据句意及首字母或汉语提示完成单词(本大题共20小题，每小题1分，共20分) 1. Digital humans can____________ (模拟) human expressions and movements so vividly that they are hard to distinguish from real people. 2. The____________(互动) between digital humans and users has become more natural with the development of AI technology. 3. This company has developed a new ____________(算法) to improve the response speed of digital humans. 4. Digital humans are widely used in the____________ (娱乐) industry, such as virtual idols in music and games. 5. The____________(外观) of this digital human is designed based on the preferences of young users. 6. We need to____________ (分析) the data collected from user feedback to optimize the digital human’s functions. 7. The ____________(智能) of digital humans mainly comes from advanced machine learning technology. 8. This digital human can____________ (交流) with users in multiple languages, including Chinese, English and Japanese. 9. The____________ (发展) of digital humans has opened up new possibilities for the service industry. 10. Engineers are trying to____________ (克服) the technical difficulties in making digital humans’ movements more flexible. 11. The____________ (应用) of digital humans in customer service can reduce the workload of real staff. 12. Digital humans with____________ (逼真的) skin textures are more popular among users. 13. We should ____________(评估) the impact of digital humans on society before promoting their large - scale use. 14. The____________ (技术) used to create this digital human is leading the global industry. 15. This digital human can____________ (回应) to users’ questions within 0.5 seconds, showing high efficiency. 16. The____________ (设计师) spent three months perfecting the details of the digital human’s face. 17. Digital humans can____________ (协助) doctors in explaining medical knowledge to patients more clearly. 18. The____________ (表现) of this digital human in the live show won high praise from the audience. 19. We need to ____________(更新) the digital human’s software regularly to fix bugs and add new features. 20. The____________ (普及) of digital humans is growing rapidly due to their wide range of uses. 三、完成句子(本大题共20小题，每小题2分，共40分) 1. Digital humans, which combine advanced AI and 3D modeling, ________ (正被广泛应用于) various fields like customer service and education. 2. With the development of technology, it is possible that digital humans ________ (将在未来替代) some repetitive human jobs. 3. The digital human host can interact with audiences naturally because it ________ (被编程能理解) basic human emotions through voice and facial expressions. 4. Many companies invest heavily in digital human technology ________ (为了提升) their service efficiency and user experience. 5. Unlike real humans, digital humans ________ (不需要休息) and can work 24 hours a day without getting tired. 6. The designer spent three months ________ (完善) the details of the digital human’s appearance to make it look more realistic. 7. It is reported that a digital human teacher ________ (已在多所学校试用) to help students with their after-class homework. 8. Digital humans can communicate with people in multiple languages, which ________ (使其在国际场合很有用). 9. To create a digital human, engineers first need ________ (收集大量的) data related to human movements and expressions. 10. The digital human singer’s performance was so popular that it ________ (吸引了超过一百万的观众) online last night. 11. Some people worry that if digital humans ________ (变得过于智能), they might bring unexpected risks to human society. 12. The team is working on a new function that ________ (允许数字人类) to learn from users’ daily interactions automatically. 13. By the end of next year, our company ________ (将已开发出) at least five types of digital humans for different industries. 14. Digital humans are not just tools; they ________ (也被视为) a new way to connect people in the digital world. 15. The reason why this digital human is more popular than others is that it ________ (能更好地适应) the changing needs of users. 16. Before this digital human is put into use, it ________ (必须经过) strict tests to ensure its safety and reliability. 17. It is amazing that the digital human ________ (能模仿人类的) body language so accurately that few people can tell it apart from a real person. 18. In the past five years, the cost of creating digital humans ________ (已大幅下降), making it easier for small companies to use this technology. 19. This digital human doctor can give patients preliminary advice, but it ________ (不能替代) real doctors in making important medical decisions. 20. If we ________ (合理利用) digital human technology, it will certainly play a positive role in promoting social development. 1 / 14学科网（北京）股份有限公司 学科网（北京）股份有限公司 $ Unit 2 Digital humans 教材考点精练 单元重点单词短语句型语法 (时间：60分钟，满分：100分) 一、用括号内所给单词的适当形式填空(本大题共40小题，每小题1分，共40分) 1. Digital humans, which are ____________(create) with advanced AI technology, are now widely used in various fields. 答案：created； 解析：此处为被动语态，“数字人”被“创造”，故用过去分词与are构成被动结构。 2. It is reported that the new digital human____________ (able) to interact with humans naturally will be launched next month. 答案：able； 解析：“be able to”为固定搭配，此处“able to...”作后置定语修饰“digital human”，无需变形式。 3. The engineer spent three months____________ (improve) the facial expressions of the digital human to make them more realistic. 答案：improving； 解析：“spend + 时间 + (in) doing sth”为固定用法，in可省略，故填动名词形式。 4. This digital human can not only speak multiple languages but also____________ (understand) the emotions of human speakers. 答案：understand； 解析：“not only...but also...”连接并列谓语，前面有情态动词can，故此处用动词原形。 5. Many companies are investing heavily in digital human technology____________ (meet) the growing market demand. 答案：to meet； 解析：此处为目的状语，用不定式“to do”表示“为了满足市场需求”。 6. The performance of the digital human at the concert last night ____________(impress) a large number of audience. 答案：impressed； 解析：根据时间状语“last night”可知，此处用一般过去时，impress的过去式为impressed。 7. Do you know the reason why digital humans____________ (become) more and more popular in recent years? 答案：have become； 解析：“in recent years”为现在完成时的标志词，主语为复数，故填have become。 8. The team is working on a new function that allows the digital human ____________(adapt) to different communication scenarios automatically. 答案：to adapt； 解析：“allow sb/sth to do sth”为固定搭配，故填不定式to adapt。 9. Digital humans ____________(use) in customer service can save a lot of time for both companies and customers. 答案：used； 解析：此处为过去分词作后置定语，“digital humans”与“use”为被动关系，故用used。 10. It is still unknown whether digital humans____________ (replace) human workers in some industries in the future. 答案：will replace； 解析：根据“in the future”可知，此处用一般将来时，故填will replace。 11. The designer paid great attention to every detail when____________ (design) the appearance of the digital human. 答案：designing； 解析：此处为“when + 现在分词”的省略结构，完整形式为“when he was designing”，故填designing。 12. A digital human with good communication skills____________ (be) very helpful in remote education. 答案：is； 解析：主语为“A digital human”，单数形式，陈述客观事实用一般现在时，故填is。 13. We should consider the ethical problems that____________ (arise) from the wide use of digital humans. 答案：arise； 解析：此处为定语从句，先行词为“problems”，时态为一般现在时，故填arise（无被动语态）。 14. The digital human host greeted the guests in a friendly voice as soon as they ____________(enter) the hall. 答案：entered； 解析：“as soon as”引导时间状语从句，主句用一般过去时，从句也用一般过去时，故填entered。 15. Scientists are doing research on how____________ (make) digital humans have a better sense of empathy. 答案：to make； 解析：“how to do sth”为固定结构，作介词on的宾语，故填to make。 16. The success of this digital human project depends ____________(great) on the cooperation of the whole team. 答案：greatly； 解析：此处修饰动词depends，需用副词形式，great的副词为greatly。 17. Digital humans are often compared ____________real humans in terms of communication skills. 答案：to； 解析：“compare...to...”为固定搭配，意为“把……比作……”，符合语境。 18. It took the researchers two years____________ (develop) the core algorithm of the digital human. 答案：to develop； 解析：“It takes sb + 时间 + to do sth”为固定句型，it为形式主语，真正主语为不定式，故填to develop。 19. The digital human singer is so popular that her songs have been downloaded millions ____________times. 答案：of； 解析：“millions of”为固定短语，意为“数百万的”，修饰可数名词复数times。 20. This new type of digital human is different ____________the previous one in its interactive ability. 答案：from； 解析：“be different from”为固定搭配，意为“与……不同”，为固定用法。 21. The company decided to set up a special department____________ (deal) with the research and development of digital humans. 答案：to deal； 解析：此处为不定式作目的状语，“建立部门”的目的是“处理研发工作”，故填to deal。 22. Digital humans can help people____________ (solve) some difficult problems in daily life. 答案：solve； 解析：“help sb (to) do sth”为固定搭配，to可省略，故填solve。 23. The number of digital humans used in the media industry____________ (increase) rapidly in the past five years. 答案：has increased； 解析：“the number of + 复数名词”作主语，谓语动词用单数；“in the past five years”为现在完成时标志，故填has increased。 24. It is important for us____________ (learn) about the advantages and disadvantages of digital humans. 答案：to learn； 解析：“It is + adj + for sb + to do sth”为固定句型，it为形式主语，真正主语为不定式，故填to learn。 25. The digital human teacher explained the math problem again and again____________ (ensure) that all students could understand it. 答案：to ensure； 解析：此处为不定式作目的状语，“反复讲解”的目的是“确保学生理解”，故填to ensure。 26. Many people are interested in____________ (know) how digital humans can simulate human body movements. 答案：knowing； 解析：介词in后接动名词作宾语，故填knowing。 27. The digital human nurse can remind patients____________ (take) their medicine on time every day. 答案：to take； 解析：“remind sb to do sth”为固定搭配，意为“提醒某人做某事”，故填to take。 28. This digital human has the ability ____________(recognize) thousands of different human voices. 答案：to recognize； 解析：“the ability to do sth”为固定结构，意为“做某事的能力”，故填to recognize。 29. The development of digital humans is closely related____________the progress of AI and computer vision technology. 答案：to； 解析：“be related to”为固定搭配，意为“与……相关”，故填to。 30. It is surprising that the digital human can finish the task____________ (efficient) than a human worker. 答案：more efficiently； 解析：根据“than”可知，此处用比较级；修饰动词finish需用副词，efficient的副词比较级为more efficiently。 31. If we____________ (not control) the use of digital humans properly, it may bring some negative effects to society. 答案：don't control； 解析：此处为if引导的条件状语从句，遵循“主将从现”原则，主句用may bring（含情态动词，表将来），从句用一般现在时，故填don't control。 32. The digital human actor won an award for his excellent performance, ____________made many people surprised. 答案：which； 解析：此处为非限制性定语从句，指代前面整个句子“数字人演员获奖”这件事，关系词在从句中作主语，故填which。 33. By the time we finish this course, we____________ (learn) all the basic knowledge about digital humans. 答案：will have learned； 解析：“by the time + 一般现在时从句”表示“到……时候为止”，主句用将来完成时，故填will have learned。 34. The digital human's voice sounds so natural that many people can't tell it ____________a real human's voice. 答案：from； 解析：“tell...from...”为固定搭配，意为“区分……和……”，符合语境“无法区分数字人和真人的声音”。 35. Some experts suggest that we____________ (establish) a set of rules to regulate the development of digital humans. 答案：(should) establish； 解析：“suggest”表示“建议”时，其后的宾语从句用虚拟语气，谓语动词用“(should) + 动词原形”，should可省略。 36. The digital human was designed ____________a famous singer, so it looks exactly like her. 答案：after； 解析：“be designed after”为固定短语，意为“仿照……设计”，符合“仿照著名歌手设计数字人”的语境。 37. As long as we use digital humans in a correct way, they____________ (bring) more benefits to our life. 答案：will bring； 解析：“as long as”引导条件状语从句，遵循“主将从现”原则，从句用一般现在时，主句用一般将来时，故填will bring。 38. The team leader asked who____________(be) responsible for testing the new function of the digital human. 答案：was； 解析：此处为宾语从句，主句用一般过去时（asked），从句需用相应的过去时态，主语为who（单数），故填was。 39. Digital humans ____________(equip) with advanced sensors can collect and analyze human behavior data in real time. 答案：equipped； 解析：此处为过去分词作后置定语，“digital humans”与“equip”为被动关系，“被配备传感器”，故填equipped。 40. I wonder if the digital human____________ (be) able to have independent thinking like humans in the near future. 答案：will be； 解析：“in the near future”为一般将来时标志，宾语从句中需用相应时态，故填will be。 二、根据句意及首字母或汉语提示完成单词(本大题共20小题，每小题1分，共20分) 1. Digital humans can____________ (模拟) human expressions and movements so vividly that they are hard to distinguish from real people. 答案：simulate 解析：“模拟”对应单词“simulate”，情态动词“can”后接动词原形，符合句子“数字人能模拟人类表情动作”的语义。 2. The____________(互动) between digital humans and users has become more natural with the development of AI technology. 答案：interaction 解析：“互动”的名词形式为“interaction”，此处需用名词作主语，体现“数字人与用户间的互动”这一核心概念。 3. This company has developed a new ____________(算法) to improve the response speed of digital humans. 答案：algorithm 解析：“算法”对应的专业术语是“algorithm”，由不定冠词“a”可知用单数形式，符合“新算法提升响应速度”的语境。 4. Digital humans are widely used in the____________ (娱乐) industry, such as virtual idols in music and games. 答案：entertainment 解析：“娱乐”的名词形式为“entertainment”，“entertainment industry”是固定搭配，意为“娱乐行业”，契合“虚拟偶像应用场景”。 5. The____________(外观) of this digital human is designed based on the preferences of young users. 答案：appearance 解析：“外观”对应“appearance”，此处指数字人的外在形象，作主语符合“基于用户偏好设计”的语义逻辑。 6. We need to____________ (分析) the data collected from user feedback to optimize the digital human’s functions. 答案：analyze 解析：“分析”的动词为“analyze”，“need to”后接动词原形，体现“通过分析数据优化功能”的动作。 7. The ____________(智能) of digital humans mainly comes from advanced machine learning technology. 答案：intelligence 解析：“智能”的名词是“intelligence”，不可数名词，作主语说明数字人智能的来源。 8. This digital human can____________ (交流) with users in multiple languages, including Chinese, English and Japanese. 答案：communicate 解析：“交流”对应动词“communicate”，情态动词“can”后接原形，符合“多语言交流”的场景。 9. The____________ (发展) of digital humans has opened up new possibilities for the service industry. 答案：development 解析：“发展”的名词为“development”，作主语体现“数字人的发展为服务业带来新可能”的句意。 10. Engineers are trying to____________ (克服) the technical difficulties in making digital humans’ movements more flexible. 答案：overcome 解析：“克服”对应动词“overcome”，“try to”后接原形，契合“工程师解决技术难题”的语境。 11. The____________ (应用) of digital humans in customer service can reduce the workload of real staff. 答案：application 解析：“应用”的名词是“application”，“the application of...”为固定结构，意为“……的应用”，符合“客服场景应用”的语义。 12. Digital humans with____________ (逼真的) skin textures are more popular among users. 答案：realistic 解析：“逼真的”对应形容词“realistic”，修饰名词“skin textures”（皮肤质感），体现数字人形象的真实感。 13. We should ____________(评估) the impact of digital humans on society before promoting their large - scale use. 答案：evaluate 解析：“评估”对应动词“evaluate”，情态动词“should”后接原形，强调“推广前评估社会影响”的必要性。 14. The____________ (技术) used to create this digital human is leading the global industry. 答案：technology 解析：“技术”对应名词“technology”，作主语说明“打造该数字人的技术处于领先地位”。 15. This digital human can____________ (回应) to users’ questions within 0.5 seconds, showing high efficiency. 答案：respond 解析：“回应”对应动词“respond”，情态动词“can”后接原形，符合“快速回应问题”的效率描述。 16. The____________ (设计师) spent three months perfecting the details of the digital human’s face. 答案：designer 解析：“设计师”对应名词“designer”，由定冠词“the”可知指特定设计师，符合“完善面部细节”的动作主体。 17. Digital humans can____________ (协助) doctors in explaining medical knowledge to patients more clearly. 答案：assist 解析：“协助”对应动词“assist”，情态动词“can”后接原形，体现“数字人辅助医生”的功能。 18. The____________ (表现) of this digital human in the live show won high praise from the audience. 答案：performance 解析：“表现”对应名词“performance”，作主语说明“数字人在直播中的表现获好评”。 19. We need to ____________(更新) the digital human’s software regularly to fix bugs and add new features. 答案：update 解析：“更新”对应动词“update”，“need to”后接原形，符合“定期更新软件”的操作需求。 20. The____________ (普及) of digital humans is growing rapidly due to their wide range of uses. 答案：popularity 解析：“普及”对应名词“popularity”，不可数名词，作主语体现“数字人因用途广泛而快速普及”的趋势。 三、完成句子(本大题共20小题，每小题2分，共40分) 1. Digital humans, which combine advanced AI and 3D modeling, ________ (正被广泛应用于) various fields like customer service and education. 答案：are being widely applied in 解析：主语“Digital humans”与“应用”是被动关系，“正被”提示用现在进行时的被动语态；“应用于”固定搭配为“be applied in”。 2. With the development of technology, it is possible that digital humans ________ (将在未来替代) some repetitive human jobs. 答案：will replace 解析：“未来”提示用一般将来时，“替代”直接用“replace”，无需被动（主语“digital humans”是动作发出者）。 3. The digital human host can interact with audiences naturally because it ________ (被编程能理解) basic human emotions through voice and facial expressions. 答案：has been programmed to understand 解析：“被编程”是被动关系，且动作对现在有影响（能自然互动），用现在完成时的被动语态；“编程做某事”为“be programmed to do”。 4. Many companies invest heavily in digital human technology ________ (为了提升) their service efficiency and user experience. 答案：to improve / in order to improve 解析：空格表目的，用不定式“to do”或“in order to do”，“提升效率/体验”为“improve efficiency/experience”。 5. Unlike real humans, digital humans ________ (不需要休息) and can work 24 hours a day without getting tired. 答案：don’t need to rest / don’t require rest 解析：描述客观事实用一般现在时，“需要休息”可表达为“need to rest”或“require rest”，主语为复数，否定式用“don’t”。 6. The designer spent three months ________ (完善) the details of the digital human’s appearance to make it look more realistic. 答案：perfecting 解析：固定搭配“spend + 时间 + doing sth”，“完善细节”为“perfect the details”，故填“perfecting”。 7. It is reported that a digital human teacher ________ (已在多所学校试用) to help students with their after-class homework. 答案：has been tried out in many schools 解析：“已试用”提示用现在完成时，“试用”为“try out”，主语“digital human teacher”与“试用”是被动关系，故用被动语态。 8. Digital humans can communicate with people in multiple languages, which ________ (使其在国际场合很有用). 答案：makes them very useful in international occasions 解析：定语从句中，关系词“which”指代前文整个句子，视为单数，谓语用“makes”；“使其有用”为“make them useful”，“国际场合”是“international occasions”。 9. To create a digital human, engineers first need ________ (收集大量的) data related to human movements and expressions. 答案：to collect a large amount of / to gather plenty of 解析：“需要做某事”为“need to do”，“大量的”修饰不可数名词“data”，可用“a large amount of”或“plenty of”。 10. The digital human singer’s performance was so popular that it ________ (吸引了超过一百万的观众) online last night. 答案：attracted more than one million audiences 解析：“last night”提示用一般过去时，“吸引观众”为“attract audiences”，“超过一百万”是“more than one million”。 11. Some people worry that if digital humans ________ (变得过于智能), they might bring unexpected risks to human society. 答案：become too intelligent 解析：“if”引导条件状语从句，遵循“主将从现”，主句用“might bring”（情态动词），从句用一般现在时“become”。 12. The team is working on a new function that ________ (允许数字人类) to learn from users’ daily interactions automatically. 答案：allows digital humans 解析：定语从句修饰“function”（单数），谓语用“allows”；“允许某人做某事”为“allow sb to do”，“数字人类”用复数“digital humans”（泛指）。 13. By the end of next year, our company ________ (将已开发出) at least five types of digital humans for different industries. 答案：will have developed 解析：“By the end of next year”（截止到未来时间点）提示用将来完成时，结构为“will have + 过去分词”，“开发出”为“developed”。 14. Digital humans are not just tools; they ________ (也被视为) a new way to connect people in the digital world. 答案：are also regarded as / are also seen as 解析：“被视为”固定搭配为“be regarded as”或“be seen as”，主语“they”为复数，描述客观事实用一般现在时的被动语态。 15. The reason why this digital human is more popular than others is that it ________ (能更好地适应) the changing needs of users. 答案：can adapt better to / is better able to adapt to 解析：“能适应”为“can adapt to”或“be able to adapt to”，“更好地”用“better”修饰，主语“it”为单数，“be able to”中“be”用“is”。 16. Before this digital human is put into use, it ________ (必须经过) strict tests to ensure its safety and reliability. 答案：must be tested through / has to go through 解析：“必须经过”可表达为被动（“must be tested through”，主语与“测试”是被动关系）或主动（“has to go through”，“go through tests”表示“通过测试”）。 17. It is amazing that the digital human ________ (能模仿人类的) body language so accurately that few people can tell it apart from a real person. 答案：can imitate humans’ / is able to copy human 解析：“能模仿”为“can imitate”或“be able to copy”，“人类的肢体语言”可表达为“humans’ body language”（名词所有格）或“human body language”（形容词“human”修饰）。 18. In the past five years, the cost of creating digital humans ________ (已大幅下降), making it easier for small companies to use this technology. 答案：has decreased greatly / has dropped significantly 解析：“In the past five years”提示用现在完成时，“下降”可译为“decrease”或“drop”，“大幅”用“greatly”或“significantly”修饰。 19. This digital human doctor can give patients preliminary advice, but it ________ (不能替代) real doctors in making important medical decisions. 答案：cannot replace / is not able to take the place of 解析：“不能替代”直接用“cannot replace”，或用“be not able to take the place of”（“take the place of”为“替代”的固定短语），主语“it”为单数，“be”用“is”。 20. If we ________ (合理利用) digital human technology, it will certainly play a positive role in promoting social development. 答案：make rational use of / use properly 解析：“if”引导条件状语从句，“主将从现”，主句用“will play”，从句用一般现在时；“合理利用”可译为“make rational use of”或“use properly”。 1 / 14学科网（北京）股份有限公司 学科网（北京）股份有限公司 $