2022年专接本-大学英语考前模拟强化练习题93（附答案详解）

2022年专接本-大学英语考前模拟强化练习题（附答案详解）1. 单选题A supermarket is a self-service store. It is the important type of retail by combining self-service with low prices. An average supermarket handles（买卖）thousands of edible things including vegetables, meat, fresh fruits, canned groceries, bakery items, frozen foods and dairy products. Some also carry items such as seafood and liquor. Non-edible things in a supermarket include household cleaners, health and beauty aids, and housewares. The markets are located in shopping centers, business centers, neighborhood areas and along highways.Self-service stores were set up in the US in the early 20th century. The American merchant Michael Cullen opened the first supermarket, which he called King Kullen in 1930, in New York City.Supermarkets grow rapidly. Wide ownership of cars and home refrigerators and the appearance of packaged groceries contributed to the popularity（普及）of supermarkets. Moreover, the general consumer appeal of the supermarket conceptlarge size, self-service, variety of goods, one-stop shopping, and low pricesensured their growth.Today, supermarkets are operated by chains of various sizes and by independent owners. The supermarket concept is gaining increasing popularity through the world.1、What is not the characteristic of the supermarkets?2、What does the underlined word “edible” in the first paragraph mean?3、What does one-stop shopping mean?4、Who opened the first supermarket in the US?5、Which of the following statements is not true according to the passage?问题1选项A.Self-service.B.Low prices.C.Variety of goods.D.Far away from the shopping center.问题2选项A.Fit to be eaten.B.Fit to be used.C.Fit to be drunk.D.Fit to be sold.问题3选项A.It means that the consumers can only stop once when they are in a supermarket.B.It means that the consumers can buy whatever they want in a supermarket, so they neednt go to another one.C.It means that the consumers will be stopped at the entrance of a supermarket.D.It means that there is only one entrance to a supermarket.问题4选项A.King Kullen.B.Michael Cullen.C.Queens.D.New York.问题5选项A.Generally speaking, a supermarket handles thousands of items.B.Supermarkets develop very quickly.C.In the future, supermarkets will not be so popular as they are today.D.That more people have cars and refrigerators makes the supermarkets more popular.【答案】第1题:D第2题:A第3题:B第4题:B第5题:C【解析】第1题:【原文考查】事实细节题【选项释义】什么不是超市的特征？A. 自助服务B. 低价C. 品种齐全D. 远离购物中心【解题思路】本题可根据第三段最后一句中的“the supermarket conceptlarge size, self-service, variety of goods, one-stop shopping, and low prices”可知，超市的概念是大规模、自助服务、品种齐全、一站式购物、低价，所以A、B、C三项均是超市的特征。又根据第一段最后一句中的“The markets are located in shopping centers.”可知，超市位于购物中心等地方，而不是远离购物中心。故本题选D。【干扰项排除】A、B、C选项均是超市的特征。第2题:【原文考查】词语理解题【选项释义】第一段中的划线词“edible”是什么意思？A. 适合吃的B. 适合用的C. 适合喝的D. 适合卖的【解题思路】本题为词语理解题，找到划线词edible所在的第一段第三句“An average supermarket handles thousands of edible things including vegetables, meat, fresh fruits, canned groceries, bakery items, frozen foods and dairy products.”，由此可知，超市买卖数以千计的物品，包括蔬菜、肉类、新鲜水果、罐装食品杂货、烘焙食品、冷冻食品和乳制品。这些物品有一个共同点，那便是都是可食用的，进而推出，edible的意思和A选项最为接近。故本题选A。【干扰项排除】B、C、D选项均不是划线词的意思。第3题:【原文考查】推理判断题【选项释义】一站式购物是什么意思？A. 它的意思是消费者在超市只能停留一次。B. 它的意思是消费者可以在一家超市买到他们想要的任何物品，所以不需要再去另一家。C. 它的意思是消费者将被拦在超市入口。D. 它的意思是超市只有一个入口。【解题思路】通过文章第一段的内容可以了解到，人们在超市可以买到各种各样的物品，有可食用物品，还有不可食用物品。由此可以推断，一站式购物的意思是消费者可以在一家超市里买到他们想要的任何物品，不必再去另一家购买，B选项符合题意，故本题选B。【干扰项排除】A、C、D选项均不是一站式购物的意思。第4题:【原文考查】事实细节题【选项释义】谁开了美国第一家超市？A. King Kullen.B. Michael Cullen.C. Queens.D. New York.【解题思路】本题的题眼为“the first supermarket”，可以定位到第二段第二句“The American merchant Michael Cullen opened the first supermarket.”，由此可知，美国商人Michael Cullen开办了第一家超市。故本题选B。【干扰项排除】A、C、D选项均不正确。第5题:【原文考查】事实细节题【选项释义】根据文章内容，下面哪一个观点是不正确的？A. 总体而言，一家超市可以买卖数以千计的物品。B. 超市发展地非常迅速。C. 在未来，超市不会像如今这样普及。D. 更多的人有了车和冰箱会使得超市更加普及。【解题思路】本题可根据文章中的最后一句话“The supermarket concept is gaining increasing popularity through the world.”了解到，超市的概念在全球越来越普及，所以C选项观点不正确，故本题选C。【干扰项排除】根据第一段第三句“An average supermarket handles thousands of things.”，排除A选项；根据第三段第一句“Supermarkets grow rapidly.”，排除B选项；根据第三段第二句“Wide ownership of cars and home refrigerators contributed to the popularity of supermarkets.”，排除D选项。2. 单选题It was because the boy broke an expensive vase _his mother scolded him.问题1选项A.whyB.whenC.thatD.which【答案】C【解析】【考点】本题考查强调句。【选项释义】A. why 为什么；B. when 当时候；C. that 引导从句无释义；D. which 哪一个。【解题思路】分析句子结构可知，这里考查强调句。强调句的基本句型是：It is/was+被强调部分+that/who+其他。被强调部分如果是人，其后可以用who连接，也可以用that连接；被强调部分如果是事物，其后只能用that连接。本句强调的是原因状语从句because the boy broke an expensive vase，所以应用连接词that。故本题选C。【干扰项排除】A、B、D选项连接词均不正确。【句意】正是因为那个男孩打碎了一个昂贵的花瓶，他妈妈才责骂了他。3. 翻译题He successfully solved the problems at last.【答案】【参考译文】他最终成功地解决了这些问题。【解析】【考点】本题考查简单句的翻译。【解析】 本句中“successfully”是successful的副词形式，可译为“成功地”。 本句中“solved”是solve的过去式，可译为“解决了”；“at last”可译为“最终”。4. 单选题Computers are useful machines. They can help people a lot in their everyday life. For example, they can help people save much time, and they can help people work out many problems they cant do easily. Our country asks everyone to learn to use computers except the old people.Today more and more families own computers. Parents buy computers for their children.They hope computers can help them improve（提高）their studies in school. Yet many of the children use computers to play games, to watch videos or to sing a song instead of studying. So many teachers and parents complain that computers cannot help children to study but make them fall behind. So computers are locked by parents in the boxes.In some other countries, even some scientists hate computers. They say computers let millions of people lose their jobs or bring them a lot of trouble.Will computers really bring trouble to people or can they bring people happiness? It will be decided by people themselves.1、Why do we say the computer is a useful machine? Because _.2、What do many teachers and parents complain about?3、In this passage we know computers _.4、What do students do with computers? Except _.5、How do you understand the last sentence of this passage? I think it means _.问题1选项A.our country asks us to learn itB.it can help us a lotC.we can use it to play gamesD.it can help us to find jobs问题2选项A.Their students and children use computers to study.B.Computers let them lose their jobs.C.Computers make the students and children fall behind.D.Computers bring people a lot of trouble.问题3选项A.also bring us troubleB.bring us happiness onlyC.are hated by peopleD.are bad for peoples health问题4选项A.playing computer gamesB.watching videosC.studyingD.singing a song问题5选项A.computers are used by peopleB.people can live well without computersC.computers are strange machinesD.one must decide how to use computers【答案】第1题:B第2题:C第3题:A第4题:C第5题:D【解析】第1题:【原文考查】事实细节题【选项释义】我们为什么说计算机是有用的机器？因为_。A. 我们国家要求我们学习它B. 它对我们有很大的帮助C. 我们可以用它来玩游戏D. 它可以帮助我们找工作【解题思路】本题根据题干中的“the computer is a useful machine.”，定位到第一段的第一句，再根据本句后的“They can help people a lot in their everyday life.”可以得知，计算机是有用的机器，因为在日常生活中它对人们有很大的帮助。故本题选B。【干扰项排除】A、C、D选项均与原文不符。第2题:【原文考查】事实细节题【选项释义】许多老师们和父母们都在抱怨什么？A. 他们的学生和孩子用计算机来学习。B. 计算机让他们丢了工作。C. 计算机使学生们和孩子们学业落后。D. 计算机给人们带来了很多麻烦。【解题思路】本题的题眼为“complain”，定位到第三段中的倒数第二句“So many teachers and parents complain that computers cannot help children to study but make them fall behind.”，由此可知，许多老师们和父母们抱怨计算机不能帮助孩子学习，反而使他们学业落后了。故本题选C。【干扰项排除】A、B、D选项均与原文不符。第3题:【原文考查】事实细节题【选项释义】通过这篇文章，我们得知计算机_。A. 也会给我们带来麻烦B. 只会给我们带来快乐C. 被人们所讨厌D. 对人们的健康有害【解题思路】本题可以根据第一段第二句“They can help people a lot in their everyday life.”和倒数第二段最后一句“They say computers let millions of people lose their jobs or bring them a lot of trouble.”得出，计算机对人们有很大的帮助，同时也会带来诸多麻烦。故本题选A。【干扰项排除】B选项有一个only，不正确；C选项说法过于绝对，在文章倒数第二段第一句中有提到，在一些其他国家，甚至一些科学家讨厌计算机，并没有上升到全体人类都讨厌，不正确；D选项在文中并未提及。第4题:【原文考查】事实细节题【选项释义】学生们用计算机做什么？除了_。A. 玩电脑游戏B. 看视频C. 学习D. 唱歌【解题思路】本题根据第三段第二句“Yet many of the children use computers to play games, to watch videos or to sing a song instead of studying.”可知，许多孩子使用计算机玩游戏、看视频或唱歌，而不是学习。故本题选C。【干扰项排除】A、B、D选项均为学生们用计算机做的事情。第5题:【原文考查】推理判断题【选项释义】你怎么理解这篇文章的最后一句话？我认为它的意思是_。A. 计算机被人们所使用B. 人们离开计算机可以活得很好C. 计算机是奇怪的机器D. 一个人必须决定如何使用计算机【解题思路】本题根据文章中的最后一段“Will computers really bring trouble to people or can they bring people happiness? It will be decided by people themselves.”可以得知，计算机给人们带来的究竟是麻烦还是快乐将由人们自己决定。由此可以推断出，本文最后一句话的意思是一个人必须自己决定如何去使用计算机。故本题选D。【干扰项排除】A、B、C选项均不是文章最后一句话的深层含义。5. 单选题Lucy _the washing all the morning so she is exhausted now.问题1选项A.had doneB.has been doingC.doesD.is going to do【答案】B【解析】【考点】本题考查动词时态。【选项释义】A. had done 做（过去完成时）；B. has been doing 做（现在完成进行时）；C. does 做（一般现在时）；D. is going to do 做（一般将来时）。【解题思路】本题根据句意和前一分句中的时间状语all the morning（整个上午）可知，前一分句应用现在完成进行时，即其谓语动词用“have/has been+现在分词”的形式，表示从过去某一时间开始一直延续到现在的动作，这个动作可能刚刚结束，或者可能还要继续进行下去。故本题选B。【干扰项排除】A、C、D选项时态均不正确。【句意】露西整个上午都在洗衣服，所以她现在筋疲力尽。6. 单选题Can you help me _ my pen?Its under your chair.问题1选项A.ask forB.look forC.put onD.put up【答案】B【解析】【考点】本题考查动介短语的语义辨析。【选项释义】A. ask for 请求，要求；B. look for 寻找，期望；C. put on 穿上，上演；D. put up 提升，建造。【解题思路】根据句意，此处应该是表示“找我的笔”，look for有“寻找”之意，故本题选B。【干扰项排除】A、C、D选项均不符合句意。【句意】你能帮我找找我的笔吗？它在你的椅子下面。7. 单选题If you always _to others, you will end up having no thoughts of your own.问题1选项A.give awayB.give inC.give upD.give out【答案】B【解析】【考点】本题考查词义辨析。【选项释义】A. give away 赠送，泄露，分发；B. give in 屈服，认输；C. give up 放弃；D. give out 分发，公布。【解题思路】分析句子结构可知，此处包含一个if引导的状语从句。根据句意可知，四个选项中只有B选项带入句中，句意通顺：“如果你总向别人屈服”。故本题选B。【干扰项排除】A、C、D选项均不符合句意。【句意】如果你总向别人屈服，你最终会没有自己的想法。8. 单选题There are lots of tickets left for the next flight, so you _book the ticket in advance.问题1选项A.needntB.mustntC.cantD.shouldnt【答案】A【解析】【考点】本题考查情态动词。【选项释义】A. neednt 不必，没有必要；B. mustnt 禁止，不准；C. cant 不能；D. shouldnt 不应该。【解题思路】本题根据逗号前一分句的句意“下一航班还剩有很多票”可知，四个选项中只有A选项带入句中，符合语境，因此A选项正确。故本题选A。【干扰项排除】B、C、D选项均不符合句意。【句意】下一航班还剩有很多票，所以你不必提前订票。9. 翻译题What are you going to do this summer holiday?【答案】【参考译文】你这个暑假打算做什么？【解析】【考点】本题考查特殊疑问句的翻译。【解析】 本句中“What are you going to do?”为特殊疑问句，可译为“你打算做什么？”。 本句中“summer holiday”可译为“暑假”。10. 单选题His car _ five years ago, but it looks quite new.问题1选项A.buysB.boughtC.is boughtD.was bought【答案】D【解析】【考点】本题考查动词的时态和语态。【选项释义】buy 购买，购得。A. buys（一般现在时）；B. bought（一般过去时）；C. is bought（一般现在时的被动语态）；D. was bought（一般过去时的被动语态）。【解题思路】根据前半句中的时间状语five years ago可以得知，buy这个动作发生在过去，应用一般过去时。又由于主语his car和谓语动词buy之间形成逻辑上的动宾关系，因此应用被动语态，故本题选D。【干扰项排除】A选项时态和语态均不符合；B选项语态不符合；C选项时态不符合。【句意】他的车是五年前买的，但看起来相当新。11. 单选题On the first day of Chinese New Year we _ new clothes and visit people.问题1选项A.pick upB.put onC.take offD.throw away【答案】B【解析】【考点】本题考查动介短语的语义辨析。【选项释义】A. pick up 接人，捡起；B. put on 穿上，上演；C. take off 起飞，脱下；D. throw away 扔掉，抛弃。【解题思路】根据句意，此处应该是表示“穿上新衣服”，put on有“穿上”之意，故本题选B。【干扰项排除】A、C、D选项均不符合句意。【句意】在中国新年的第一天，我们会穿上新衣服去拜访人们。12. 翻译题我们每年三月植树。【答案】【参考译文】We plant trees every March.【解析】【考点】本题考查简单句的翻译。【解析】 根据时间状语“每年三月”可知，译文的时态应为一般现在时。 本句中“每年三月”可译为“every March”；“植树”可译为“plant trees”。13. 单选题Youve probably heard about sports coaches, fitness instructors, voice teachers, career counselors, psychiatrists（精神科医生）and other specialists who teach skills and help us cope with problems. But now there is a rapidly growing kind of careersome professionals do a little bit of everything. She or he is called a “life coach”. People who are at a crossroads in their lives, and corporations that want to provide their employees with opportunities for advancement are turning to them for help.This new style of life coaches also includes enthusiastic speakers or writers. They use their own experience in business, sports or psychotherapy（心理疗法）to help others make critical life decisions. The idea that one persons success story can change other peoples lives for the better goes back at least to the 1930s. Shortly thereafter, Dale Carnegies How to Win Friends & Influence People came out in 1936, which is a popular book about self-development.The life coaches often give their approaches a slogan, such as “energy coaching” “fearless living” or “working yourself happy”. Dave Lakhani in Boise, Idaho, for instance, works with salespeople to make what he calls a “road map”. He says an ongoing relationship with a coach is like having a personal trainer for ones career and life outside work. Lakhanis coaching firm also donates some of its time to help people who are not successfulincluding struggling single mothers.But others in the so-called “helping professions” are not thrilled about the life-coaching movement. They say that anyone, who is trained or untrained, can call himself or herself a life coach. The existence of these slick（虚有其表的）promoters who mess with peoples lives can do more harm than good.1、Which of the following is the best title for the passage?2、What does the underlined phrase “life coach” in Paragraph 1 mean?3、What can we learn from the passage?4、Which of the following statements is TRUE according to the passage?5、What is the attitude of other people in helping professions towards life coaches?问题1选项A.Working Yourself HappyB.Life Coaches: Help You with Tough DecisionsC.How to Cope with Daily LifeD.The Life-coaching Movement问题2选项A.The career counselor who teaches skills.B.The fitness instructor who teaches us lessons.C.The professional who helps us cope with daily life.D.The specialist who helps us solve psychological problems.问题3选项A.An enthusiastic writer who is good at psychology may become a life coach.B.One persons success story must change other peoples lives for the better.C.A sports coachs job is the same as a fitness instructors.D.Only a trained person can call himself a life coach.问题4选项A.A person who needs to make a significant decision in his life can turn to a life coach.B.The book How to Win Friends & Influence People appeared in the nineteenth century.C.Lakhanis coaching firm doesnt help those single mothers.D.Life coaches can help the government to solve many problems.问题5选项A.Cautious.B.Approving.C.Neutral.D.Disapproving.【答案】第1题:B第2题:C第3题:A第4题:A第5题:D【解析】第1题:【原文考查】主旨大意题【选项释义】下列哪一项是本文的最佳标题？A. 使你自己高兴B. 人生教练：帮助你做出艰难的决定C. 如何应对日常生活D. 人生指导运动【解题思路】本题为主旨大意题，根据文章首段中的“Now there is a rapidly growing kind of careersome professionals do a little bit of everything. She or he is called a life coach.”可知，现如今有一种快速发展的职业人生教练。本文主要是围绕着“人生教练”来展开论述的，在后文中提到了人生教练用自己的经验来帮助人们，以及关于人生教练的争议。由此可知，B选项最适合作为本文标题，故本题选B。【干扰项排除】A、C、D选项均不能概括文章主要内容。第2题:【原文考查】词语理解题【选项释义】第一段中的划线短语“life coach”是什么意思？A. 教授技能的职业顾问B. 给我们上课的健身教练C. 帮助我们应对日常生活的专家D. 帮助我们解决心理问题的专家【解题思路】本题为词语理解题，可根据“life coach”所在的句子及其后的“She or he is called a life coach. People who are at a crossroads in their lives, and corporations that want to provide their employees with opportunities for advancement are turning to them for help.”可知，处在人生重大抉择关头的人们，以及想要为员工提供晋升机会的公司，都在向人生教练寻求帮助。由此可推知，“人生教练”指的是一些帮助人们应对日常生活的专业人士，故本题选C。【干扰项排除】A、B、D选项均不正确。第3题:【原文考查】事实细节题【选项释义】从本文我们可以学到什么？A. 一位热心的、擅长心理学的作家可能成为一名人生教练。B. 一个人的成功故事必须让其他人的生活变得更好。C. 一个体育教练的工作与一个健身教练的工作相同。D. 只有一个被训练过的人可以称他自己为人生教练。【解题思路】本题可根据第二段中的“This new style of life coaches also includes enthusiastic speakers or writers. They use their own experience in business, sports or psychotherapy to help others make critical life decisions.”可知，人生教练包括热心的演说家或作家，他们可以用自己在某些方面的经验来帮助他人做出关键的人生决定，因此A选项正确，故本题选A。【干扰项排除】根据最后一段中的“They say that anyone, who is trained or untrained, can call himself or herself a life coach.”，排除D选项；B选项说法过于绝对；C选项文中并未提及。第4题:【原文考查】事实细节题【选项释义】根据文章内容，下列哪一项陈述是正确的？A. 一个需要做出重大人生决定的人会求助于人生教练。B. 人性的弱点这本书出版于19世纪。C. 拉哈尼的培训公司不帮助那些单身母亲。D. 人生教练能够帮助政府解决许多问题。【解题思路】本题可根据第一段的末尾“People who are at a crossroads in their lives are turning to them for help.”可知，处在人生重大抉择关头的人们，即需要做出重大人生决定的人，会求助于人生教练，所以A选项正确，故本题选A。【干扰项排除】根据第二段最后一句“Dale Carnegies How to Win Friends & Influence People came out in 1936”可知，人性的弱点这本书出版于20世纪30年代，B选项不正确；根据第三段最后一句“Lakhanis coaching firm also donates some of its time to help people who are not successfulincluding struggling single mothers.”可知，Lakhani的培训公司帮助单身母亲，C选项不正确；D选项在文中并未提及。第5题:【原文考查】观点态度题【选项释义】其他帮助职业人士对人生教练持什么样的态度？A. 谨慎的B. 赞成的C. 中立的D. 反对的【解题思路】本题可根据文章结尾处“The existence of these slick promoters who mess with peoples lives can do more harm than good.”可知，其他帮助职业人士认为干涉人们生活的虚有其表的倡导者的存在弊大于利，即他们对人生教练持反对的态度，故本题选D。【干扰项排除】A、B、C选项均不符合题意。14. 单选题I wish I _a company of my own before I am forty years old.问题1选项A.startB.startedC.can startD.could start【答案】D【解析】【考点】本题考查虚拟语气。【选项释义】A. start 开始（动词原形）；B. started 开始（过去分词/过去式）；C. can start 能开始；D. could start 能开始（一般过去时）。【解题思路】动词wish后接的宾语从句应用虚拟语气，从句谓语动词用过去式表示对现在情况的假设；从句谓语动词用“had+过去分词”的形式表示对过去情况的假设；从句谓语动词用“would/could/might+动词原形”的形式表示对将来情况的假设。根据从句中的时间状语从句before I am forty years old（在四十岁之前）可知，此处表示对将来情况的假设，再结合选项可知，空处应用could start。故本题选D。【干扰项排除】A、B、C选项形式均不正确。【句意】我希望我能在四十岁之前开办自己的公司。15. 单选题More than one student _ the prize for the most innovative design at yesterdays meeting.问题1选项A.awardedB.were awardedC.was awardedD.have awarded【答案】C【解析】【考点】本题考查主谓一致和动词时态、语态。【选项释义】A. awarded 授予（过去式/过去分词）；B. were awarded 被授予（一般过去时，被动，复数）；C. was awarded 被授予（一般过去时，被动，单数）；D. have awarded 授予（现在完成时，复数）。【解题思路】“more than one+单数名词”在意义上虽有复数概念，但作主语时，谓语动词一般用单数形式；“more+复数名词+than one”作主语时，谓语动词应用复数形式。根据句中的主语More than one student可知，谓语动词应用单数形式；根据句意可知，More than one student和award之间是被动关系，应用被动语态。再根据句中的时间状语at yesterdays meeting（在昨天的会议上）可知，这里应用一般过去时。故本题选C。【干扰项排除】A选项语态不正确。B选项动词的数不正确。D选项时态、语态和数均不正确。【句意】不止一个学生在昨天的会议上被授予了最具创意设计奖。16. 单选题Technical support is _ our company should provide for him.问题1选项A.whenB.whatC.whyD.how【答案】B【解析】【考点】本题考查名词性从句的连接词。【选项释义】A. when 何时，连接副词，在名词性从句中作时间状语；B. what 什么，连接代词，可在名词性从句中作主语、宾语、表语、定语等成分；C. why 为什么，连接副词，在名词性从句中作原因状语；D. how 如何，连接副词，在名词性从句中作方式状语。【解题思路】本题通过分析句子结构可知，空处引导的是一个表语从句。从句中成分不完整，缺少provide的宾语，所以应用连接代词what来引导，what既起连接作用，又作provide的宾语。故本题选B。【干扰项排除】A、C、D选项为连接副词，在名词性从句中作状语，均不符合题意。【句意】技术支持是我们公司应该向他提供的。17. 不定项选择题There are many ways to help improve your health like eating healthy food, taking exercise and getting medical help. But the easiest and cheapest way to improve your health is just to sleep for eight hours or more every night. The general sleeping rule is that the younger you are, the longer sleep you need. But regardless of（不管）age, some people need to sleep more while for some a few hours is enough.The problem with sleep is that more and more people in the world are not sleeping enough. According to the World Health Organization over half the people in the world may be sleep-deprived. Having less sleep not only makes people feel fired but also causes accidents. In the United States alone, sleepy drivers cause at least 100,000 traffic accidents a year. Also sleep problems can cause medical problems such as high blood pressure.（血压）Why are so many people sleep-deprived? Part of the reasons may be cultural. In the American culture, people put a higher value on work than on sl