练习册

  • 练习册
  • 试题
    精英家教网 > 高中英语 > 题目详情
    Few of us make money by losing sleep．But three graduate students at Brown University in Providence built a company around sleep deprivation （睡眠不足）．
    Jason Donahue, Ben Rubin and Eric Shashoua were working late nights in Brown's business and engineering schools．They began thinking about ways to sleep better．They discovered they weren't alone in burning the midnight oil．Around 20% of Americans get less than six hours of rest a night．
    The friends imagined a smart alarm clock that could track how much time people spend in the most restorative （有回复作用的） stages of the sleep cycle: REM （rapid eye movement） and deep sleep．What would it cost to design such a thing? Five years of research, 20 employees, $14 million and a whole lot of doubting from investors and scientists．
    Their company, Zeo, based in Newton, Mass, launched its product in June, 2009．The Zeo device uses a headband with tiny sensors （传感器） that scan your brain for signs of four sleep states- REM, light, deep and waking sleep．The smart alarm clock displays a graph of your sleep pattern and wakes you as you're not in REM sleep （which is when you're least groggy）．In the morning you can upload the data to the company's Web site, and so track your sleep over time．Most of the feedback comes in the form of Zeo's ZQ score showing how well you've slept．
    "Zeo allows people to unlock this black box of sleep," says Dave Dickinson, a health-care CEO．
    Whether any of this actually improves sleep is up to the consumer, who will also need to make lifestyle changes like cutting out alcohol before bedtime or caffeine after 3 pm．
    For now the company is selling Zeo online only．Dickinson also plans to spread it to countries such as Australia, where sleep deprivation approaches US levels．
    小题1:Who will support Zeo?
    A．People full of imagination．B．People suffering sleeping problems．
    C．People having access to the Internet．D．People having bad lifestyles．
    小题2:Why did the three graduate students imagine a smart alarm clock?
    A．To wake them up on time in the morning．
    B．To earn enough money for their study．
    C．To improve the quality of people's sleep．
    D．To enjoy their life while working at night．
    小题3:To design the Zeo device, the three graduate students ____．
    A．spent much time and moneyB．were widely supported by scientists
    C．worked by themselves all the timeD．attracted many investors
    小题4:What can we know from the passage?
    A．Zeo has a direct effect on users' lifestyles．
    B．It needs more personal efforts to make Zeo function better．
    C．A large quantity of Zeo devices have been sold in Australia．
    D．Consumers can go to the Zeo company to purchase Zeo in person．

    小题1:B
    小题1:C
    小题1:A
    小题1:B
    略
    练习册系列答案
    年级 高中课程 年级 初中课程
    高一 高一免费课程推荐！ 初一 初一免费课程推荐！
    高二 高二免费课程推荐！ 初二 初二免费课程推荐！
    高三 高三免费课程推荐！ 初三 初三免费课程推荐！
    相关习题

    科目：高中英语 来源：不详 题型：阅读理解

    (NEW YORK)---Scientists have discovered small signs of awareness in some vegetative(植物人的) brain injury patients and have even communicated with one of them---findings that are beneficial to how to assess and care for such people.
    The new research suggests that standard tests may ignore patients who have some consciousness, and that someday some kind of communication may be possible.
    In the strongest example, a 29-year-old patient was able to answer yes-or-no questions by picturing specific scenes the doctors asked him to imagine.
    “We were stunned when this happened,” said one study author, Martin Monti of the Brain Sciences Unit in Cambridge. “I find it really amazing. This was a patient who was believed to be vegetative for five years.”
    Ever since a research paper four years ago described obvious signs of awareness in a vegetative patient, families of patients have been demanding brain scans, said Dr. James Bernat, a spokesman for the American Academy for Neurology.
    But experts said more study is needed before the specialized brain scans could be used in medical treatment. “It’s still a research tool,” Bernat said.
    Experts also pointed out that only a few tested patients showed evidence of awareness. And they said it is not clear what degree of consciousness and mental abilities the signs imply.
    They also noted that the positive signals appeared only in people with traumatic(外伤的) brain injury---not in patients whose brains had been lacking in oxygen, as can happen when the heart stops.
    The new study used brain scanning called functional MRI, for 23 patients in a vegetative state and 31 that are minimally(极微地) conscious.
    Patients are said to be in a vegetative state if they are tested and found unable to do such things as move on command or follow a moving object with their eyes. Minimally conscious patients show signs of awareness, but they are minimal and discontinuous.
    小题1: What is the practical use of the research?
    A．It leads to studying how to cure vegetative patients.
    B．It attracts society to pay more attention to vegetative patients.
    C．It helps doctors know whether patients are vegetative or not.
    D．It drives the government to care about vegetative patients.
    小题2:What does the underlined word “stunned” in Paragraph 4 probably mean?
    A．RelaxedB．AmazedC．ExcitedD．Worried
    小题3:One is considered vegetative if _______________.
    A．his eyes can’t follow a moving thingB．his brain only has a little oxygen
    C．he has a traumatic brain injuryD．his heart stops beating
    小题4:The passage mainly deals with ________________.
    A．how to recognize a vegetative patientB．the significance of a new scientific finding
    C．how family members look after a vegetative patient
    D．the latest findings on awareness in some vegetative patients

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    Drunken driving –sometimes called America’s socially accepted form of murder—has become a national epidemic (流行病). Every hour of every day about three Americans on average are killed by drunken drivers, adding up to an incredible 250,000 over the past ten years. A drunken driver is usually referred to as one with 0.10-blood alcohol content or roughly three beer glasses of wine or shots of whisky drunk within two hours. Heavy drinking used to be an acceptable part of the American manly image and judges were lenient in most courts, but the drunken killing has recently caused so many well-publicized tragedies, especially concerning young children, that public opinion is no longer so tolerant.
    Twenty states have raised the legal drinking age to 21, reversing a trend in the 1960s to reduce it to 18. After New Jersey lowered it to 18, the number of people killed by 18-20 years old drivers more than doubled, so the state recently upped it back to 21.
    Reformers, however, fear raising the drinking age will have little effect unless accompanied by educational programs to help young people to develop “responsible attitudes” about drinking and teach them to resist peer pressure to drink.
    Though new laws have led to increased arrests and tests in many areas already, to a marked drop in accidents, some states are also punishing bars for serving customers too many drinks. A bar in Massachusetts was fined for serving six or more double brandies to a customer who was “obviously drunk” and later drove off the road, killing a 9-year-old boy.
    As the accidents continue to occur daily in every state, some Americans are even beginning to speak well of the 13 years national prohibition of alcohol that began in 1919, which President Hoover called the “noble experiment”. They forgot that legal prohibition didn’t stop drinking, but encouraged political corruption and organized crime. As with the booming drug trade generally, there is no easy solution.
    小题1: From paragraph one, we can know that ____________.
    A．most Americans like drinking
    B．heavy drinking is hard to avoid
    C．many Americans are killed by drunk drivers
    D．Americans are not shocked by traffic accidents
    小题2:What can be inferred from the fact of the traffic accidents in New Jersey?
    A．The legal drinking age should be raised.
    B．Young drivers were usually bad.
    C．Most drivers hoped to raise the legal drinking age.
    D．Drivers should not be allowed to drink.
    小题3:The underlined word “lenient” in the first paragraph means “_________”.
    A．seriousB．cruel C．mercifulD．determined
    小题4:In America, public opinion about drunken driving has changed because __________.
    A．judges are no longer lenient
    B．new laws are introduced in some states
    C．the problem has attracted public attention
    D．drivers do not appreciate their manly image
    小题5:Which of the following best shows the writer’s opinion of drunken driving?
    A．It may lead to organized crime.
    B．It is difficult to solve this problem.
    C．The new laws can stop heavy drinking.
    D．There should be no bars to serve drinks.

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    Roslyn Hing School on long Island recently started a pilot program using iPads in some classrooms.
    A growing number of schools across the U.S.are multimedia,history through gamse and math with step-by -step animation(动画）of complex problems.
    As part of a pilot program,Roslyn High School handed out 47 iPads on Dec.20,2010 to the students and teachers in two humanities(人文学科）classes. The school district hopes to provide iPads eventually to all 1,100 of its students.
    The iPads are to be used in class and at hom during the school year to replace texbooks,allow students to correspond with teachers and tum in papers and homework tasks,and preserve a rocord of student work in digital files.
    “It allows us to extend the classes beyond these four walls.”said larry Reiff,an English teacher at Roslyn who now posts all his course mateials online.
    But educators are still divided over whether practices to give every student a laptop have made a difference academically.
    “Thre is very little evidence that kids learn more,faster of better by using these machines,”said Larry Cuban,a retried professor of eduction at Staford University.“IPads are excellent tools to attract kids,but then the fieshness wears off and you eget int hard-core problems of teaching and learning.”
    But school leaders say the iPad is not just a cool new toy but rather a powerful and multifunctional tool with a number of applications,including thousands with educational uses.
    “If there isn't an application that does something I need ,there will be sooner or later,”said Mr.Reiff,who said he now used an application that includes all of Shakespare's plays.
    小题1:The program of using iPads in class is            .
    A．widely accepted by most schools in the United States
    B．only an experimental one carried out in some schools
    C．a compulsory one carried out by the U.S government
    D．encouraged and organized by the iPad company
    小题2:The underlined part “these four walls”in paragraph 5 refers to    .
    A．school dormitoryB．school campus
    C．teacher's officeD．school classroom
    小题3:We can use iPads to do the following at school except     .
    A．replace the school textbooksB．keep digital record of homework
    C．judge the teachers'teachingD．communicate with teachers
    小题4:The school leaders tink highly of the iPad mainly because it is       .
    A．cool and interestingB．powerful and helpful
    C．multifunctional and expensiveD．attractive and vivid
    小题5:We can infer from the passage that     .
    A．most old teachers are against the pilot program
    B．students have achieved a lot after using iPads
    C．teaching will become less important with the help of ipads
    D．iPads will be used is more and more schools in the US

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    Some teens believe drugs will help them think better, and be more popular. These days, drugs can be found everywhere. Many teens are tempted(诱惑) by the excitement or escape from reality that drugs seem to offer.
    Drugs are chemicals that change the way our bodies work. When you put them into your body, drugs find their way in your blood and are taken to parts of your body, such as your brain.
    The effects of drugs can be different depending on the kind of drug taken, how much is taken, how often it is used, how quickly it gets to the brain, and what other drugs or food are taken at the same time. Although drugs can make you feel good at first, they can finally do a lot of harm to the body.
    There are many kinds of drugs available, and there are many reasons for trying them regularly. People take drugs just for pleasure they believe they can bring. Often it’s because someone told them that drugs would make them feel good or that they’d have a better time if they took them.
    Many teens use drugs because they’re unhappy or think drugs will help them escape their problems. The truth is that drugs don’t solve problems—they simply hide feelings and problems. When a drug wears off, the feelings and problems remain, or became worse. Drugs can ruin every aspect of a person’s life.
    小题1:The main idea of the second paragraph is probably _________.
    A．how drugs work
    B．what drugs are made of
    C．that drugs can reduce physical pain
    D．that drugs dull your senses
    小题2: People take drugs regularly _________.
    A．just for good health
    B．because they can have a better life
    C．just for pleasure
    D．because they need them
    小题3: __________ cause teens to take drugs.
    A．Physical pain, escaping and fear
    B．Escaping, excitement and unhappiness
    C．Curiosity, fear and escaping
    D．Excitement, unhappiness and their physical pain
    小题4: Which of the following is NOT true ?
    A．Drugs may be tempting to teens.
    B．Drugs do harm to the body.
    C．Drugs can solve people’s problems.
    D．Drugs can make people happy.
    小题5:Which of the following would be the best title for the passage?
    A．Drugs: the Killer of People
    B．Drugs: the Favorite of Teens
    C．Drugs: What You Should Take
    D．Drugs: What You Should Know

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    Researchers found that compared with teens who spent much of their free time in front of TV sets, those who were physically active often had higher self-respect, better grades and were less likely to have risky behavior like taking drugs, smoking, or drinking．The findings, based on a national survey of nearly 12,000 middle and high school students, were published in a journal．
    "Across the board, children who engaged in any kind of activity were belier off than kids who watched a lot of TV," said study co author professor Penny Gordon Larsen of the University of North Carolina．
    Other studies have linked certain content of television programs, such as violence and sex, to children's behavior．But beyond this issue, Gordon-Larsen said that kids who spend hours watching TV "miss opportunities" to develop skills, learn teamwork and have other experiences that their more active peers benefit from．
    That doesn't mean, however, that kids have to be on the football team． The study found that some activities like skating and skateboarding——which adults sometimes frown upon——were also related to better self respect and less risk taking．
    That skaters were better behaved than TV watchers might come as a surprise to some adults who consider these teens to be bad, according to Gordon-Larsen．Skateboarding is forbidden in many public areas, and some communities oppose building skating parks．But if kids who like to skate have nowhere to do it, "it's a shame," said Gordon-Larsen．
    Not only should parents encourage their kids to engage iii the physical activities they enjoy, she said, but schools and communities should also do more to create opportunities for children to be active．
    小题1:From the passage we know that          .
    A．physically active kids get into less trouble
    B．more skating parks are being built
    C．kids who spend hours watching TV benefit a lot
    D．kids who have nowhere to skate tend to take drugs
    小题2:If your kid is a football player, he is more likely to ____
    A．get into the habit of smoking or drinking
    B．develop teamwork spirit
    C．have risky behaviors
    D．fail in the schoolwork
    小题3:This passage is mainly written to ___     ．
    A．offer some information to teachers and parents
    B．persuade kids not to watch a lot of TV
    C．urge the public to help children be active
    D．show the author's concern about children's growth
    小题4:What does the underlined sentence "which adults sometimes frown upon" in the 4th paragraph mean?
    A．Some adults don't understand the sports．
    B．Some adults are impatient with kids．
    C．Adults consider it dangerous to go skating or skateboarding.
    D．Some adults think them related to bad behaviors.
    小题5:It can be inferred from the passage that          .
    A．kids are not expected to be active by some parents
    B．professor Penny is a famous writer and journalist
    C．skateboarding is popular in schools and communities
    D．kids are not encouraged to join the football team

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    People who traveled in the past had to put up with many discomforts which we do not have nowadays, and of course they traveled far more slowly. Roads were bad indeed and you often found you could not get along at all because of the mud. In dry weather many places were thick in dust and when it was stormy, trees might fall across the road and it was nobody’s business to clear them away.
    Ordinary people traveled on foot or on horseback, but everyone who could afford it kept a private coach. There were public coaches too. called “stage coaches” because long journeys took several days and were done in stages, with stops over night at inns. Some stage, coaches ran only in the summer months. Others all the year around. They were very slow and crowded and passengers often became in on the way because of the swaying (摇晃).
    Break downs were frequent, since many roads were not smooth. So a coach might very easily turn right over. Early in the century coach and wagon builders were encouraged to put very wide wheels on their vehicles. So that these might level the roads a little. But many people complained of this since it slowed travel down a good deal.
    Most travelers during the 18th century wrote bitterly about the state of the roads. One visitor to Sussex took six hours to travel nine miles in his coach; another wrote to a friend that on time of his journeys “almost every mile was marked by the overturn of a carriage”.
    小题1:Which of the following mainly prevented people from travelling fast in the past?
    A．Falling treesB．Thick dust
    C．Muddy roadD．Many discomforts
    小题2: The underlined word “them” in the first paragraph refers to _____.
    A．the discomfortsB．the blocked roads
    C．the dusty placesD．the fallen trees
    小题3: Public coaches were called “stage-coaches” because ______. 
    A．the long journey was broken into several parts
    B．they were slow and crowded
    C．they stopped for meals at inns
    D．they served public people only
    小题4: The sentence “almost every mile was marked by the overturn of a carriage” suggests that ______.
    A．the coaches were of poor quality
    B．the writers liked to describe the road bitterly
    C．the road condition was really poor
    D．travelling about in the past was extremely slow

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    Many businesses today use conferences as a means of discussing new plans for company. As people are paying more attention to the environment and green problems, more businesses are looking for ways to reduce their negative effect on the environment. Many businesses do this by using web conferencing.
    Web conferencing is a technology that allows people to communicate more effectively over the Internet. It is an easy way of hosting and attending conferences without having to leave the office. Each of the people involved in a web conference will be posted an invitation to the conference with the time and date of the web conference on it. When the conference is ready to begin, all participants (参与者) must sit at their computer and they will be connected over the Internet.
    Obviously, in doing this no fuel is used in traveling to and from a conference, and less work time is taken up in attending a conference.
    Any material to be used during the web conference is simply e-mailed to all the participants before the conference. This not only saves paper but also greatly reduces mailing cost for the business.
    As a conference hall or business center isn’t being used, it means that the only power that is used is the power used by the participants’ personal computers. Similarly conference organizers don’t have to arrange for food or overnight accommodation (住宿) for participants. All this means that less energy is used.
    Many companies actively do many things to reduce their negative impact (影响) on the environment. So web conferencing is much cheaper and greener and more people are willing to host and attend a web conference.
    小题1:What is the passage mainly about?
    A．Ways of protecting the environment.
    B．Green benefits of web conference.
    C．Ways of hosting a web conference.
    D．Impacts of web conferencing on costs.
    小题2:According to paragraph 1, many companies use web conferencing because they________.
    A．are interested in using any new technology
    B．believe that web conferencing is more convenient
    C．want to do something to protect the environment
    D．haven’t enough money to hold a traditional conference
    小题3:Web conferencing has all of the following advantages EXCEPT _________.
    A．saving timeB．promoting understanding
    C．saving energyD．saving paper
    小题4:The participants of a web conference_________.
    A．will be e-mailed an invitation before the conference
    B．are required to sit in the office together
    C．will receive many paper materials
    D．must have access to the Internet

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    Be Healthy ! Be Slim ! Be Beautiful!
    Discover the secret for a healthy, slim, and beautiful you !
    Discover how to be healthy, slim and beautiful !
    I love this healthy diet program because it helps you lose weight, lose inches, feel healthy and look beautiful. .com
    This healthy diet is an 8 week’s program which is unlike other diet regimes(食物疗法). In that it focuses on proper nutrition first and weight loss second. Your body must have proper levels of minerals, vitamin, and protein in order to work well. It provides a simple lifestyle change to give you more energy and improve your health most greatly. It offers control over stomach and continuing hunger with a dense diet allowing 1,700 to 2,000 calories a day. If a person has a weight problem, their body probably is not working at proper levels of basic nutrients. We invite you to follow this program, so you can be the slim person who lives inside you.
    You too, can love dieting especially if you are losing weight and losing inches.
    For more information about our program, please get to our address in the internet:
    http://www.Shaklee. net/ lifestyle—for—heath/products
    小题1:This passage is mainly about            .
    A．how people should keep fitB．a healthy diet program
    C．why people should keep fitD．ways to lose weight
    小题2:The underlined phrase “lose inches” in the passage means            .
    A．become shorterB．become taller
    C．become fatterD．become thinner
    小题3:According to this passage, all of the following are true except that          .
    A．this program makes a change in your lifestyle
    B．this program can stop you from feeling hungry all the time
    C．this program allows you 1,700 to 2,000 calories for each meal
    D．this program tries to tell us what people should do to become slim
    小题4:If you click “ http://www.Shaklee. net/ lifestyle—for—heath/products ”you may read      
    A．some other programsB．the content of this program
    C．some interesting foodsD．some products you can buy

    查看答案和解析>>

    同步练习册答案