2021版高考英语一轮复习Unit1Livingwithtechnology课后达标检测牛津译林版选修7

2021版高考英语一轮复习Unit1Livingwithtechnology课后达标检测牛津译林版选修7

Unit 1 Living with technology 课时练1　2篇阅读＋1篇完形 ‎[学生用书P375(单独成册)]‎ 阅读理解 A ‎(2020·安徽联盟阶段考试)With smart technology increasingly influencing all aspects of our lives, it is only a matter of time before someone invents smart shoes—ones that can be made based on personal needs. Called “ShiftWear”， the sneakers are the brainchild of a team of businessmen, and engineers led by New Yorkbased designer David Coelho.‎ The adaptable shoes can be customized by using a smart phone app. Shoe owners will have the option of selecting a design from a variety of HD patterns by famous artists or creating one themselves. The company’s founders imagine the marketplace where artists can not only share but also sell their designs to others. Despite being electronic, the designs are clearly visible even in the brightest sunlight. What’s even cooler is that by switching on backlight, users can even show their designs in the dark!‎ According to Coelho, the sneakers will keep their charge forever if only images are displayed. Though they will need periodic recharging, active users have nothing to worry about. That’s because the shoes are equipped with special WalkNCharge technology that powers the shoes—with every step. Inactive users also have options of charging the sneakers without using wires.‎ The bottom part of the shoes is covered with Kevlar fibers, a kind of strong material, reducing normal wear and tear. Even better, they are completely waterproof(防水的) and can even be thrown into an ordinary laundry machine for a quick wash! The company predicts that the shoes will range in price from $150 to $1，000 depending on the size of the EPanels where the designs are displayed.‎ This is not the first time that electronics and shoes have combined. Lithuaniabased iShuh Technologies has come up with a similar concept that connects ereader panels to a smart phone app via the Bluetooth. Whether these smart shoes become as popular as our smart devices remains to be seen, though they surely are 14‎ ‎ attractive.‎ ‎【解题导语】　本文是一篇说明文，主要介绍了一种智能运动鞋。‎ ‎1．What can we know about the smart shoes from the text?‎ A．The electronic designs can not be seen clearly at night.‎ B．The designers make sure every pair of sneakers is unique.‎ C．The bottom part of the shoes can last longer due to special materials.‎ D．The shoes have to be washed by hand to protect the electronics.‎ C　解析：细节理解题。根据第四段第一句“The bottom part of the shoes is covered with Kevlar fibers, a kind of strong material, reducing normal wear and tear.”可知，鞋子的底部附着凯芙拉合成纤维，这是一种增强材料，可以减少正常的磨损；据此可知，由于使用了特殊的材料，这种鞋子的鞋底耐磨，故C项正确。‎ ‎2．What does Paragraph 3 mainly talk about?‎ A．How the sneakers are charged.‎ B．How the sneakers can work well.‎ C．What images the sneakers show.‎ D．What technology the sneakers carry.‎ A　解析：段落大意题。通读第三段可知，该段第一句“According to Coelho, the sneakers will keep their charge forever if only images are displayed.”为该段的主题句，并结合全段内容可知，该段主要介绍了这种鞋子是如何充电的：活跃的用户可以通过走路来充电，不活跃的用户也可以不用电线充电，故A项正确。‎ ‎3．The varied prices of the sneakers mainly depend on ________.‎ A．the length of the shoes B．the size of their EPanels C．the designers of the shoes D．the material of their bottoms B　解析：细节理解题。根据第四段尾句“The company predicts that the shoes will range in price from $150 to $1，000 depending on the size of the EPanels where the designs are displayed.”可知，该公司预计，这款鞋的价格范围将是150美元到1 000美元，这取决于展示这些设计的电子显示屏的尺寸，故B项正确。‎ ‎4．How does the author feel about the sneakers’future market?‎ A．Negative.　　　　　　 B．Anxious.‎ C．Uncertain. D．Confident.‎ C　解析：观点态度题。根据尾段最后一句“Whether these smart shoes become as popular as our smart devices remains to be seen, though they surely are attractive.”‎ 14‎ 可知，尽管这些智能鞋子很有吸引力，但是它们是否会像我们的智能设备一样流行还有待观察；据此可推知，作者对这种鞋子的未来并不确定，故C项正确。‎ B ‎(2020· 新疆维吾尔自治区适应性检测)Technology is forever changing the way we get our news. Most people now get a lot of their news on electronic devices, instead of traditional media, such as newspapers, television or radio. An increasing number of people also report turning to social media for information.‎ Now, there is a new technology that could greatly change the way we get the news: computer－created news readers. China has launched what it called the world’s first artificial intelligence, or AI news presenters.‎ The news readers, supported by machine learning technology, are based on two real life Chinese newsmen. One is able to present news broadcast in English; the other, in Mandarin Chinese. A report said machine learning was used to examine video images and sounds of the two newsmen. Similar technology has been used to create video products known as “deepfake videos”. A deepfake video is a video that looks real, but is electronically changed. Such videos can make people appear to say things they never said.‎ It’s said that the AI presenters will be a great improvement to the news team because they “can work 24 hours a day” on its website and on social media. One of the presenters even promised to “work tirelessly” to keep people informed. Some machine learning experts said the system showed off China’s latest progress in voice recognition, text to speech technology and data analysis.‎ Others wondered about the effects robots might have on employment and workers. Some people argued that only low level jobs requiring heavy labor will be easily replaced by robots. Others praised the technology as a way for companies to make money from lowcost labor machines.‎ Anyway, for its great potential, some businesses have experimented with similar technology for possible use in news operations.‎ ‎【解题导语】　本文主要介绍了人工智能新闻主播的相关内容。‎ ‎5．People now get information mainly from ________．‎ A．electronic devices　　　　 B．traditional media C．social media D．AI news presenters A　解析：细节理解题。根据第一段第二句中的“Most people now get a lot of their news on electronic devices”可知，人们现在主要从电子设备上获得信息。‎ 14‎ ‎6．The author mentioned “deepfake” in Paragraph 3 because ________．‎ A．it was also artificial B．it was also developed by China C．it also used machine learning technology D．it also gained popularity and recognition C　解析：推理判断题。根据第三段第三、四句“A report said machine learning was used...known as ‘deepfake videos’．”可推知，作者提到deepfake是因为它也用了机器学习技术。‎ ‎7．What can we know about AI news presenters?‎ A．AI news presenters can only “speak” one language.‎ B．Not all the people are in favor of AI news presenters.‎ C．AI news presenters will soon replace human news readers.‎ D．AI news presenters can reflect the improvement in robot making.‎ B　解析：细节理解题。根据第五段的内容，尤其是“Others wondered about the effects robots might have on employment and workers.”可知，并不是所有人都支持人工智能新闻主播。‎ ‎8．What will probably be discussed in the following paragraph?‎ A．Further research on the technology.‎ B．Other advantages of the technology.‎ C．Principles the technology is based on.‎ D．Examples the technology is applied to.‎ D　解析：推理判断题。根据第六段中的“some businesses have experimented with similar technology for possible use in news operations”可知，接下来的一段很可能讨论这种技术所应用的例子。‎ 完形填空 ‎(2020·南昌二模)In a clean, clinical room, my best friend was dying in my arms. His eyes, dark brown and trusting, would soon __1__ forever. Heartbroken, I said, “Flash, you __2__ so much happiness to me. I will do something good as a __3__．”‎ Flash came into my __4__ when I was nine. From the moment my parents brought this cute dog home, he __5__ my family with joy.‎ Then, __6__ happened. My mum was diagnosed with breast cancer when I was 11. Then my grandma, who was my __7__， passed away. My sister developed Crohn’s disease and while being tested, __8__ a heart attack. I was being bullied at school and started to __9__ classes and avoid seeing people.‎ 14‎ Flash soon gave me all the __10__ he could offer. There were times when I felt there was no __11__， but a pair of brown eyes and loving face would somehow ease me. I knew he was __12__ there for me. I knew he understood.‎ Now after 15 years, Flash was __13__. I thought doing charity work was the best reward for him. I __14__ in a nonprofit organization in Southampton and contributed about 3，500 hours to __15__ children with special needs, which completely changed my life. I learned to love the __16__ I had been on, and even accept the __17__ bits.‎ I still miss Flash. It was him that had somehow __18__ me to help others. Flash’s death was one of the __19__ moments of my life. But it was also an inspiring moment that __20__ who I was—in the best possible way—forever.‎ ‎【解题导语】　陪伴“我”多年的狗去世了，“我”悲痛欲绝，因为它曾经在“我”人生最艰难的时期陪伴“我”；狗离开“我”之后，“我”开始思考如何回报它的陪伴；于是，“我”加入了志愿者服务行列。‎ ‎1．A.open　　　　　　　　　 B．close C．shine D．fade B　解析：根据本段第一句中的“my best friend was dying”可知，狗就要去世了，它的眼睛即将永远闭上。故选 B。‎ ‎2．A.brought B．told C．saved D．owed A　解析：根据第二段的内容可知，“我”九岁时，Flash走进“我”的生活，陪伴“我”；由此可知，此处表示它曾经给“我”带来了那么多的快乐。故选A。‎ ‎3．A.relief B．chance C．bonus D．reward D　解析：根据第五段中的“I thought doing charity work was the best reward for him.”可知，为了报答Flash的陪伴，“我”将尽自己的能力做一些事情回报它。故选D。‎ ‎4．A.mind B．room C．world D．power C　解析：根据下文中的“my parents brought this cute dog home”可知，在“我”九岁时，Flash进入“我”的世界。故选C。‎ ‎5．A.helped B．filled C．protected D．decorated B　解析：根据语境可知，Flash让“我”的家充满欢乐。故选 B。‎ ‎6．A.disasters B．stories C．wonders D．mistakes 14‎ A　解析：根据下文可知，母亲患了癌症，祖母去世了，妹妹也生病了，并且“我”在学校受到同学的欺负。由此可知，“我”的家庭经历了一系列不幸的事情，故选A。‎ ‎7．A.burden B．trouble C．strength D．challenge C　解析：根据语境并结合选项可知，祖母当时是“我”的力量源泉。故选C。‎ ‎8．A.caused B．noticed C．fought D．suffered D　解析：根据该句中的“while being tested”和“a heart attack”可推知，妹妹当时在检查的过程中，遭受了心脏病的折磨。故选D。‎ ‎9．A.skip B．give C．take D．enjoy A　解析：根据该句中的“being bullied at school”和“avoid seeing people”可知，“我”当时在学校受到欺负，并且开始避开人群。由此可推知，“我”当时开始逃课。故选A。‎ ‎10．A.comment B．comfort C．expectation D．relaxation B　解析：根据该段中的“ease me”和“I knew he understood.”可知，Flash给了“我”极大的安慰。故选B。‎ ‎11．A.hope B．time C．money D．use A　解析：根据第三段的内容可知，“我”曾经遇到了一系列的不幸，“我”时常感到生活没有了希望，但是Flash棕色的眼睛、可爱的脸庞总是能让“我”感到宽慰。故选A。‎ ‎12．A.frequently B．sometimes C．hardly D．always D　解析：根据上文可知，Flash总是能够在“我”最困难的时候，一直陪伴“我”。故选D。‎ ‎13．A.aging B．gone C．missing D．deserted B　解析：根据本文第一句并结合该句可知，现在，15年后，Flash去世了。故选B。‎ ‎14．A.searched B．competed C．volunteered D．performed C　解析：根据下文中的“a nonprofit organization”和“contributed about 3，500 hours”可知，“我”自愿在一家非营利机构工作。故选C。‎ ‎15．A.attending to B．meeting with 14‎ C．talking about D．bringing up A　解析：根据下文中的“children with special needs”可知，“我”贡献了大约3 500个小时来照看有特殊需要的孩子。故选A。A项意为“照料”。‎ ‎16．A.earth B．journey C．holiday D．street B　解析：根据上文中的“which completely changed my life”可知，通过志愿者服务，“我”的生活完全变了，“我”开始喜欢自己过去所经历的旅程，甚至接受了最难接受的那些事情。故选B。‎ ‎17．A.fantastic B．absurd C．hard D．pleasant C　解析：参见上题解析。‎ ‎18．A.led B．forced C．trained D．persuaded A　解析：根据空前一句“I still miss Flash.”及下文中的“an inspiring moment”可知，Flash引导“我”去帮助他人。故选A。‎ ‎19．A.fullest B．craziest C．tiniest D．saddest D　解析：根据第一段中的“Heartbroken”可知，Flash的去世是“我”人生中最难过的时刻之一。故选D。‎ ‎20．A.explained B．transformed C．admitted D．described B　解析：根据第五段中的“which completely changed my life”并结合本段内容可知，Flash的去世也是让“我”发生改变的时刻。故选B。‎ 课时练2　2篇阅读＋1篇七选五 ‎＋1篇语法填空 ‎[学生用书P377(单独成册)]‎ 阅读理解 A ‎(2020·安徽五校质检)Are you a procrastinator(拖延者)? It’s a common problem. And it can be harmful, as previous research has shown that people who procrastinate have higher levels of stress and lower wellbeing, reported the Association for Psychological Science in the US. But a new study has found a way to deal with this problem: Be more connected to your future self.‎ Psychologists think that each person believes that they are really two 14‎ ‎ people：“Present Me” and “Future Me”. “People act as if they prefer their current selves’ needs and desires to those of their future selves，” wrote psychologists Neil Lewis and Daphna Oyserman.‎ Oyserman and Lewis decided to try to find a way to make “Present Me” imagine exactly how “Future Me” would feel the night before a big paper was due, though “Present Me” hadn’t started yet. They made “Present Me” think about a faroff event a number of days away, not months or years.‎ Thinking about events in this_way meant that something like a friend’s wedding seemed 16.3 days sooner when considered in days rather than months and 11.4 months sooner when considered in months rather than years.‎ The researchers also tried to find out whether people would take action sooner if they were told a certain event was happening in several days rather than years. For example, participants imagined they had a newborn child, and that the child would need to go to college in either 18 years or 6，570 days. The researchers found those in the “days” condition planned to start saving four times sooner than those in the “years” condition.‎ So if you think of your life in days instead of years, you may get things done quicker.‎ ‎【解题导语】　本文主要探究了一种应对拖延症的方法。‎ ‎1．What did Oyserman and Lewis intend to do through their study?‎ A．To work on a solution to test if someone is a procrastinator.‎ B．To find out whether human beings usually have two different characters.‎ C．To discover procrastinators are more likely to have a lower sense of wellbeing.‎ D．To prove it’s helpful to connect our current selves more with future selves.‎ D　解析：细节理解题。根据对第三段的整体理解可知，Oyserman和Lewis想要通过他们的研究去验证把“现在的我”和“将来的我”联系起来是否会对应对拖延症有一定的帮助，故选D。‎ ‎2．The underlined part “this way” in Paragraph 4 refers to “________”．‎ A．setting up tough deadlines B．following schedules strictly C．counting in smaller units of time D．imagining how your future self will feel C　解析：词义猜测题。承接第三段最后一句“They made ‘Present Me’ think about a faroff event a number of days away, not months or years.”可推知，‎ 14‎ 画线部分是指用更小的时间单位去计量，故选C。‎ ‎3．What helps prevent people from procrastinating?‎ A．Comparing their future selves with present selves.‎ B．Considering their current selves’ needs and desires.‎ C．Thinking about faroff events in days rather than years.‎ D．Marking important events on a calendar as a reminder.‎ C　解析：推理判断题。根据第五段的内容以及最后一段“So if you think of your life in days instead of years, you may get things done quicker.”可推知，用天而不是用年去考虑将来所发生的事情会帮助拖延者不再拖延，故选C。‎ ‎4．What does the passage mainly talk about?‎ A．A way to get things done in time.‎ B．The harmful effects of procrastination.‎ C．The reason to overlook future needs and desires.‎ D．The way to reduce stress and improve happiness.‎ A　解析：主旨大意题。根据第一段最后一句“But a new study has found a way to deal with this problem: Be more connected to your future self.”，并结合对全文的整体理解可推知，本文主要探究了一种应对拖延症的方法，故选A。‎ B ‎(2020·江西三校联考)A new study has shown how computers and robots powered by artificial intelligence can read human eye movements to “read” human personalities.‎ The eyes, they say, are the windows to the soul. And if that is true, computers and robots powered by sophisticated(复杂的) artificial intelligence algorithms(演算法) may soon have the ability to peer_into your soul. That is the result of a new study on the connection between eye movements and personality, conducted by neuroscience researchers based at the University of South Australia and published in the scientific journal Frontiers in Neuroscience.‎ ‎“Eye movements during an everyday task predict aspects of our personality，” wrote the researchers, led by University of South Australia neuroscientist Tobias Loetscher, whose team followed 42 study subjects around the university campus recording their eye movements, then determined their personality traits with “wellestablished questionnaires” for determining the personality type, according to a summary of the study published by the site Science Daily.‎ The researchers fed the data into their AI algorithms and found that computers ‎ 14‎ running the algorithms were able to record human eye movements and immediately determine a person’s major personality traits, such as “neuroticism, extraversion(外向), agreeableness, conscientiousness, as well as curiosity”， the scientists wrote.‎ ‎“The new findings could improve the way human beings interact with their computers and other hightech devices, even robots, allowing for more natural and realistic social interactions with machines，” Loetscher said.‎ ‎“People are always looking for improved, personalized services. Today’s robots and computers are not socially aware so they cannot adapt to nonverbal information，” Loetscher said in a statement quoted by The Indian Express. This research provides opportunities to develop robots and computers so that they can become more natural, and better at interpreting human social signals.‎ The study revealed previously undiscovered relations between specific personality characteristics and specific eye movement tendencies, according to a summary in Britain’s Daily Mail newspaper.‎ ‎【解题导语】　本文主要介绍了一项人工智能计算机和机器人通过读人眼球的运动从而一窥人的个性的研究。‎ ‎5．What do the underlined words “peer into” in Paragraph 2 probably mean?‎ A．Understand. B．Stare at.‎ C．Search for. D．Concern about.‎ A　解析：词义猜测题。根据第二段第一句“The eyes, they say, are the windows to the soul.”，并结合对第一段的整体理解可推知，此处peer into与第一段中的“read”相呼应，故选A。‎ ‎6．How did the researchers conduct the research?‎ A．It was carried out in a lab.‎ B．42 study subjects’ eye movements were recorded.‎ C．The students’ daily movements were tracked.‎ D．Its subjects’ personalities were determined by computer.‎ B　解析：细节理解题。根据对第三段的整体理解可知，这项研究是通过追踪42个研究对象并记录他们的眼球运动来开展的，故选B。‎ ‎7．According to Tobias Loetscher, what can we know?‎ A．Robots and computers are socially conscious.‎ B．People care less about improved, personalized services.‎ C．Today’s robots and computers can accustom to nonverbal information.‎ 14‎ D．The discovery will improve the interaction between human beings and machines.‎ D　解析：细节理解题。根据对倒数第三段的整体理解可知，这项研究发现有助于改善人类和机器的互动，故选D。‎ ‎8．What can be a suitable title for the text?‎ A．Human Personality Traits B．What Human Eye Movements Are C．Tell Personalities by Eye Movements D．How Humans and Machines Interact C　解析：标题归纳题。根据第一段开篇点题，并结合对全文的整体理解可推知，本文是一篇说明文，主要介绍了一项人工智能计算机和机器人通过读人眼球的运动从而一窥人的个性的研究，故选C。‎ 七选五 ‎(2020·合肥第二次质检)What’s the purpose of building patience abilities? In a word, happiness. Better relationships, more success. But indeed it takes efforts to build them successfully. 1.________ Thus, when the big ones come, we will have developed the patience we need for hard times.‎ Understand the addictive nature of anger and impatience. We, human beings, are still constructed with our old reptilian(爬行动物的) brain that protects our physical and emotional survival. On the emotional survival side, we want our way to get ahead, to achieve, and to “look good”. Let’s just face it. 2.________ So the first step in growing patience is to get in touch with the addictive quality of the opposite of patience—anger, impatience, blame and shame. We all have them. And we can grow beyond them.‎ Upgrade our attitude towards discomfort and pain. Pain has its purposes and pushes us to find solutions—we try to change the other person, situation or thing that we think is causing our discomfort. But the problem is that it is not the outside thing that’s the source of our pain, but how our mind is set. 3.________‎ Pay attention when the impatience or pain starts. Most of us don’t really realize it when we are feeling even the smallest—but very present—painful feelings. 4.________ But to really care for ourselves, get curious about what’s actually happening in the moment inside you. Focusing on what’s actually happening, you can notice the worry of not wanting what’s happening, the resistance.‎ ‎5．________ When you find yourself impatient, or angry with yourself, you can remind yourself that you are growing, and that, “Sure, this is understandable; this ‎ 14‎ is what happens to me when I’m bothered.” You can say to yourself, “It’s true. I don’t like this; this is uncomfortable, but I can tolerate it.”‎ A．Practice positive selftalk.‎ B．So the solution to pain is an inside job.‎ C．Patience abilities benefit you in many ways.‎ D．Learn to forgive yourself for being impatient in hard times.‎ E．We ignore the fact that we’re in pain and focus completely on fixing the problem.‎ F．The urge to protect ourselves and what we consider valuable is absolutely habitforming.‎ G．Effective ways are recommended to train ourselves to work with little pain and annoyance.‎ ‎【解题导语】　本文是一篇说明文，主要介绍了培养耐心的几个有效的方法。‎ ‎1．G　解析：根据空后一句“Thus, when the big ones come, we will... hard times.”可知，成功地培养耐心需要花费精力，因而推荐一些有效的方法用来训练我们应对痛苦及烦恼的能力，因此当更大的麻烦来临时，我们将已经有耐心应对困难的时刻。故G项符合语境。‎ ‎2．F　解析：根据空后的“So the first step... blame and shame.”可推知，保护我们自己和我们认为有价值的东西的冲动绝对是由习惯养成的，因此要做的第一步就是了解负面情绪根深蒂固的本性。故选F。‎ ‎3．B　解析：根据空前一句“But the problem is that it is not the outside thing that’s the source of our pain, but how our mind is set.”可知，问题不是出现在引起痛苦的外在因素上，而是出现在我们的思考方式上，因此解决痛苦是一种内在的活动。故选B。‎ ‎4．E　解析：根据空前一句“Most of us don’t really realize it... painful feelings.”及空后的“get curious about what’s actually happening in the moment inside you”可知，我们经常忽略了这样一个事实，即我们处于痛苦之中，而我们关注的焦点总是全部集中在解决问题上。‎ ‎5．A　解析：根据文章结构和空处所在位置可知，空处为段落主题句；通读本段可知，本段主要是说要积极地自我对话，故A项符合语境。‎ 语法填空 ‎(2020·长春质量监测一)It used to be common to see US teenagers busy at fastfood restaurants cooking burgers and 1.____________(clean) tables, especially during the summer vacation. 2.____________， the scene is becoming less common.‎ 14‎ Instead of finding summer jobs, many US teenagers are spending 3.____________(they) free time taking classes. According to The Atlantic, this change partly results 4.____________the low teen earnings paying little toward the costs of college. For many students who are going to attend college, the money from summer jobs doesn’t live up to their 5.____________(expect) at all. Meanwhile, US teenagers’ increasing interest in education 6.____________(account) for this as well. They go to summer school to learn 7.____________they might not have time for after they leave school, which 8.____________(consider) as a wise choice.‎ Despite this, a summer job is still believed to benefit teenagers. Early work experience is 9.____________human activity that develops people’s social skills. When kids are working, they gradually gain 10.____________(practice) knowledge and understanding of the labor market.‎ ‎【解题导语】　这是一篇说明文，主要介绍了美国青少年暑期生活的变化。‎ ‎1．cleaning　解析：考查非谓语动词。根据空前的并列连词and可知，空处与前面的cooking并列作be busy(in) doing sth.结构的宾语。‎ ‎2．However　解析：考查副词。由上文中的“It used to be common”以及空后的“the scene is becoming less common”可知，此处前后句构成转折关系，故用However。‎ ‎3．their　解析：考查代词。根据语境可知，空处修饰名词free time，故应用they的形容词性物主代词their在句中作定语，表示“他们的”。‎ ‎4．from　解析：考查固定搭配。这种变化部分是由青少年得到的薪水很低而难以支付大学的费用造成的。result from “(由……而)造成”为固定搭配。‎ ‎5．expectations　解析：考查词性转换和名词的单复数。根据语境及空前的“their”可知，空处应用expect的名词复数形式，表示“他们的那些期望”。‎ ‎6．accounts　解析：考查动词的时态和主谓一致。根据语境可知，文章介绍的是一般情况，且主语是US teenagers’ increasing interest，因此谓语动词用一般现在时的第三人称单数形式accounts。‎ ‎7．what　解析：考查连接词。分析句子结构可知，空处引导宾语从句，作动词learn的宾语，指物，因此填what。‎ ‎8．is considered　解析：考查动词的时态和语态。根据语境可知，文章介绍的是一般情况，应用一般现在时，此处表示“这被认为是一个明智的选择”，应用被动语态，故用一般现在时的被动语态。‎ ‎9．a　解析：考查冠词。根据空前的“is”和空后的“human activity”可知，此处表示泛指“一项人类活动”，且human的发音以辅音音素开头，故用不定冠词a。‎ ‎10．practical　解析：考查形容词。修饰名词应用形容词，故用practical “实用的”。‎ 14‎ 14‎