练习册

  • 练习册
  • 试题
    精英家教网 > 高中英语 > 题目详情

    When the school year starts, it can be difficult to get up early．After a few early mornings, extreme tiredness might make you feel like you’re going to fall over．The amazing thing is that you probably manage to stay awake all day long and into the night．But how?
    A chemical in the brain called dopamine（多巴胺）might be part of the answer．According to new research, dopamine is what keeps people who don’t get enough sleep from conking out．The chemical also has a complicated influence on your ability to think and learn when you don’t get enough sleep．
    To study sleep loss and its effect on the brain, scientists rounded up 15 healthy volunteers．The scientists tested each person’s memory and ability to pay attention twice: once after a good night’s sleep and once after being kept up all night long．During the tests, the scientists measured levels of dopamine in the brains of the volunteers．
    The results showed that when the volunteers stayed up all night, dopamine levels increased in the brain．Higher levels of dopamine kept the volunteers awake even though they felt tired．Some people are amazingly able to think clearly and react quickly, even when they haven’t had much sleep．Other people have a really hard time paying attention when tired, and their reactions are slow．All of these may be related to the dopamine levels．However, the researchers found that higher levels of dopamine don’t remove the trouble people have thinking and learning while sleep-deprived （缺乏睡眠的）．
    60．The underlined phrase “conking out” in the second paragraph probably means     ．
    A．staying awake     B．falling asleep   
    C．paying attention         D．falling over
    61．With a higher level of dopamine, one     ．
    A．will not dream dreams at night              B．may have trouble in falling asleep
    C．can still stay awake after staying up          D．can do better in learning and working
    62．We can infer from the last paragraph that        ．
    A．not all people can react quickly after they stay up late
    B．dopamine in our brain does not work when we are sleeping
    C．lack of sleep has no influence on one’s learning and thinking ability
    D．the higher the dopamine levels are, the more quickly one reacts
    63．The passage is developed by        ．
    A．setting up a point and discussing it
    B．giving examples and drawing a conclusion
    C．pointing out similarities and differences  
    D．showing a fact and explaining the cause

    小题1:B
    小题2:C
    小题3:A
    小题4:D
             
    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

    Healthy eating begins with learning how to “eat smart”. It’s not just what you eat，小题1:.　　　　 how you eat. Pay attention to what you eat and choosing foods that are both nourishing小题2:　　　　 enjoyable  helps support an overall healthy diet.
    Take time to chew your food： Chew your food slowly， savoring every bite. We tend to rush through our meals， forgetting to actually taste the flavors and feel the textures(质地) of 小题3:　　　 is in our mouths. Reconnect with小题4:　　  joy of eating.
    Avoid stress while eating：  Avoid eating while working， driving， arguing， or watching TV. Try taking some deep breaths  before beginning your meal， or light candles and play soothing music to create a relaxing atmosphere.
    Listen to your body： Ask 小题5:　　　　 if you are really hungry. You may really be thirsty， so try drinking a glass of water first. During a meal， stop eating before you feel full. It actually takes a few minutes 小题6:　　　　 your brain to tell your body that it has had 小题7:　　　　 food， so eat slowly.
    Eat early： Starting your day小题8:　　　　 a healthy breakfast can jumpstart your metabolism(新陈代谢)， and eating early in the day gives your body time to work those calories off.

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解


    About ten men in every hundred suffer from color blindness in some way. Women are luckier; only about one in two hundred is affected in this matter. Perhaps, after all, it is safer to be driven by a woman!
    There are different forms of color blindness. In some cases a man may not be able to see deep red. He may think that red, orange and yellow are all shadows of green. Sometimes a person cannot tell the difference between blue and green. In rare cases an unlucky man may see everything in shades of green －a strange world indeed.
    Color blindness in human beings is a strange thing to explain. In a single eye there are millions of very small things called “cones”. These help us to see in a bright light and to tell difference between colors. There are also millions of “rods”, but these are used for seeing when it is near dark. They show us shape but no color.
    Some insects have favorite colors. Mosquitoes prefer blue to yellow. A red light will not attract insects, but a blue lamp will. In a similar way human beings also have favorite colors. Yet we are lucky. With the aid of the cones in our eyes we can see many beautiful colors by day, and with the aid of the rods we can see shapes at night. One day we may even learn more about the invisible colors around us.
    1. The passage is mainly about _____________.
    A. color and its surprising effects.            B. women being luckier than men
    C. danger caused by color blindness          D. color blindness
    2. According to the passage, with the help of the “cones”, we can_______________.
    A. tell different shapes                    B. see in a weak light
    C. kill mosquitoes                        D. tell orange from yellow
    3. Why do some people say it is safer to be driven by women?
    A. Women are more careful.              B. There are fewer color-blind women
    C. Women are fonder of driving than men.    D. Women are weaker but quicker in thinking.
    4. Which of the statements about the color- blind is true?
    A. Not all of them have the same problem in recognizing color.
    B. None of them can see deep red.
    C. None of them can tell the difference between blue and green.
    D. All of them see everything in shades of green.
    5. We can attract and kill mosquitoes by using a _____________.
    A. red light       B. yellow light          C. blue light        D. green light

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    I know what you’re thinking : pizza? For breakfast? But the truth is that you can have last night’s leftovers in the a. m. if you want to.
    I know lots of women who skip breakfast , and they have a ton of different excuses for doing it . Some say they don’t have time. others think they’re “saving” calories, still others just don’t like breakfast food . 
    But the bottom line is that eating in the morning is very important when you’re trying to lose weight. “Eating just about anything from 300 to 400 calories would be better than nothing at all,” says Katherine Brooking , R , D , who developed the super-easy eating plan for this year’s “SELF CHALLENGE”. And even pizza can be healthy if it’s loaded with vegetables, and you stick to one small piece. 
    Breakfast is one meal I never miss, and the same goes for most weight loss success stories. Research shows that eating breakfast keeps you from overeating later in the day. Researchers at the University of Southem California found that breakfast skippers have a bigger chance of gaining weight than those who regularly have a morning meal. 
    So eat something in the morning, anything. I know plenty of friends who end up having no breakfast altogether, and have just coffee or orange juice. I say, try heating up last night’s leftovers-it may sound crazy, but if it works for you, do it! I find if I tell myself, “You can always eat it tomorrow,” I put away the leftovers instead of eating more that night. Try it…you may save yourself some pre-bedtime calories. And watch your body gain the fat-burning effects. 
    小题1:The word “leftovers” in Paragraph 1 probably means__________.
    A．things left undoneB．food remaining after a meal
    C．meals made of vegetablesD．pizza topped with fruit
    小题2:What can we infer from the text?
    A．Working women usually have breakfast in a hurry.
    B．There are some easy ways of cooking a meal.
    C．Many people have wrong ideas about breakfast.
    D．Eating vegetables helps save energy.
    小题3:According to the last paragraph, it is important to____________. 
    A．eat something for breakfastB．put away the leftovers instead of eating more.
    C．heat up leftovers for breakfastD．eat calorie-controlled food
    小题4:The text is written mainly for those_____________. 
    A．who go to work earlyB．who stay up late
    C．who want to lose weightD．who eat before sleep

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解


    For many people,  there is only one good reason to go to an amusement park: the roller coaster. But why do People go on roller coasters?
    "Where else in the world can you scream at the top of your lungs and throw your arms in the air?"  Frank Farley asks. "If you did that in most other places, they'd take you to your parents and probably put you through a psychological evaluation  (心理检查)."  Farley is a psychologist at Temple University in Philadelphia, Pennsylvania.
    Roller coasters are often attractive to kids whose lives are stressful or controlled.  "Roller coasters are a way of breaking out of the humdrum (单调 ) of everyday life.  You can let it all go and scream and shout or do whatever you want," Farley says. It has been proved that many adults feel the same way.
    Compared with skateboarding, extreme mountain biking, and other adventure sports, riding roller coasters is safe. Parents usually don't mind when kids go on coasters.  Roller coasters also have a way of bringing people together.  Riders share the thrill and adventure of surviving what feels like an extreme experience.
    Whether you like to ride a roller coaster may depend on your personality.  Psychologists say that there is a certain type of person that naturally seeks out extreme experiences. "They enjoy things like change, variety, and intensity (强度)," says Farley. "These people are actually attracted to thrills."  He describes such people as having Type-T personalities ("T" stands for thrill).
    He also believes that these thrill seekers are more adventurous and creative than other people. Albert Einstein was a Type T. "If nobody liked to seek stimulation (刺激)," he argues, "the human race wouldn't be where it is today."
    1. What is the passage mainly about?
    A. The disadvantages of roller coasters.
    B. The characteristics of roller coasters.
    C. Why many people enjoy roller coasters.
    D. How people act when riding roller coasters.
    2. According to Farley, what will most people feel after riding a roller coaster?
    A. Scared.          B. Confident.    C. Nervous.       D. Relaxed.
    3. If a person is a Type T, he seems to           .
    A. enjoy adventure sports
    B. dislike riding roller coasters
    C. like popular sports
    D. work well with others
    4. According to Farley, to our society, people with Type-T personalities are __
    A. dangerous            B. important    C. useless               D. harmful

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解


    “Love your neighbor as yourself" is a saying familiar to most of us. It means that you must have he ability to love and accept yourself in order to form and keep satisfying relationship with others self-esteem means accepting yourself for who you really are, and believing that you are indeed a ivdrthwhile person who is deserving of love and respect from others.
    Self-esteem is our sense of how good we feel about ourselves. It is based on our judgment of urselves, not on other people's assessment, but simply on our own. Our self-esteem is not efaendent on our talent. Some very ordinary people feel very good about themselves, while other extranordinarily high achievers hold low opintions of themselves.
    Self-esteem is the primary key to long-term stress managerment. Why? The first three sourees of stress are: predictable life event, unexpected changes and build-up of daily stresscs, These are much easier to handle when we believe in ourselves, A postive, healthy self-estcem gives us the “hardiness”(强健) to deal with the difficulities of life, and to see them as challenges to be met, rather than threals to be feared.
    The forth category of streesons is entirely the result of a low self-esteem. It is the category of stress that is most common and tiring over the long run. This kind of stress cannol be overcome, or evenchanged, until the self-exteem problems that cause it are corrected.
    Learning to love yourself for who y ou are is the key to overcoming stress. Self-esteem comes form the self, and cannot be promoted by others. A person who fecls that his self-estecm comes from the approval of those around him or her is bound to self-destruct(自毁), One cannot keep the level of “performance” required to please everyone else, especially if that performance disagrees with who you are and is simply a facade that makes you popular with the world. When the applause is gone, there is nothing left.
    Only those who can feel the strength of knowing who they are and those who can feel good about that will survive the stresses of life. Sef-esteem is the basis of contentment and positive living.
    58． What is self-csteem?
    A．A kind of positive lifestyle.
    B．The impression we have on other people.
    C．Our sense of how good we feel about ourselves.
    D．Our understanding of how we are seen by others.
    59．What is the key to overcoming stress according to the passage?
    A．Removing yourself from stressful situation．
    B．Learning to love yourself for who you are．
    C．Facing the stress and dealing with it．
    D．Getting help from friends．
    60．What does the underlined word "facade" （in Para 5） mean?
    A．A false appearance．   B．A big worry．
    C．A wrong action．       D．A strange feeling．
    61．The passage is written to ______．
    A．tell people how to overcome stress
    B．help people form good relationship with others
    C．show the importance of feeling good about yourself
    D．provide the different methods to get a clear view of yourself

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    HOW TO QUIT SMOKING
    When thinking about quitting…
    List all the reasons why you want to quit. Every night before going to bed, repeat one of the reasons 10 times. Decide surely that you want to quit. Try to avoid negative（消极的）thoughts about how difficult it might be. Develop strong personal reasons in addition to your health and duties to others. For example, think all the time you waste taking cigarette breaks, rushing out to buy a pack, hunting a light, etc. Set a date for quitting—perhaps a special day like your birthday, or a holiday. If you smoke heavily at work, quit during your vacation. Make the date seriously, and don’t let anything change it. Begin to prepare yourself physically: start a modest（适度的）exercise, drink more water, get plenty of rest.
    Immediately after quitting…
    The first few days after you quit, spend as much free time as possible in places where smoking is forbidden, e.g. libraries, museums, theatres, department stores, etc. Drink large quantities of water and fruit juice. Try to avoid wine, coffee, and other drinks, which remind you of cigarette smoking. Start a conversation with someone instead of asking for a match for a cigarette. If you miss the sensation（感觉）of having a cigarette in your hand, play with something else—a pencil, a pen, or a ruler. If you miss having something in your mouth, try toothpicks or a fake（假的）cigarette.
    小题1:Which of the following statements is best supported by the author?
    A．When you want a cigarette, try to forget it by starting a conversation with someone.
    B．Try to drink wine, coffee, and other drinks instead of a cigarette.
    C．If you miss the sensation of having a cigarette in your mouth, play with a pen.
    D．Every night before going to bed, repeat the reasons 10 times.
    小题2:From the passage, we know smokers _______.
    A．spend a lot of time breaking the habit of smoking
    B．have to stop to smoke from time to time
    C．had better quit smoking during their holiday
    D．start a modest exercise every day
    小题3:The author suggests _______ immediately after quitting.
    A．all kinds of drinks be avoided
    B．drinking water and fruit juice
    C．trying low-tar（低焦油）cigarettes
    D．spending as much free time as possible in public places
    小题4:If the article is in a newspaper, which section is it in?
    A．Sports.B．News.C．Health.D．Culture.

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解


    Stay and Play for 2 Days
    Stay in the magic with your friends and family and book a hotel stay at either Disney’s Hollywood Hotel or Hong Kong Disneyland Hotel. As a hotel guest, you can enjoy an extra day at Hong Kong Disneyland Park during your stay when you buy a one-day ticket!
    How It Works
    Hotel guests staying at either the Disney’s Hollywood Hotel or Hong Kong Disneyland Hotel who buy a Hong Kong Disneyland Park ticket will receive an extra park admission for the following day. Guests can buy Stay and Play for 2 Days tickets as soon as you check in at the Front Desk. Ticket price will be based on the first day a guest visits the Park. If the first visit day is a Regular Day, guests can buy Regular Day tickets even though the following day may be a Peak (高峰) or Special Day. If the first visit day is a Peak Day, Guests should buy Peak Day tickets even though the following day may be a Regular Day.
    This offer is available 13 May through 30 September 2009. Guests who have bought their Hong Kong Disneyland Park tickets before 13 May 2009 can exchange their unused and not expired（过期的）tickets to Stay and Play for 2 Days tickets at the Hotel Front Desk.
    Where to Buy
    Guests can book their hotel stay through the following:
    Call Hong Kong Disneyland Reservation Center at +852 1-830-830, opens daily 9 am-6 pm.
    OR
    Get in touch with your travel agent.
    Dates to Remember
    Offer Period   13 May 2009– 30 September 2009 
    Last Day to buy Stay and Play for 2 days tickets   29 September 2009 
    Last Visit Date   30 September 2009 
    For more information, please click here.
    60. As a guest at Hong Kong Disneyland Hotel, you can enjoy an extra day in ______.
    A. Disney’s Hollywood Hotel                 B. a Hong Kong family
    C. Hong Kong Disneyland Hotel               D. Hong Kong Disneyland Park
    61. You can get a Stay and Play for 2 Days ticket______.
    A. from 13 May 2009 to 30 September 2009
    B. by calling +852 1-830-830 any time of the day
    C. by getting in touch with your travel agent
    D. with your used Hong Kong Disneyland Park ticket
    62. It can be inferred（推断）from the article that ______ .
    A. Disney’s Hollywood Hotel is in Hollywood, the USA
    B. Regular Day tickets are cheaper than Peak Day tickets
    C. anyone can exchange his park ticket for a Stay and Play for 2 days ticket
    D. this special offer lasts a little over six months
    63. This advertisement is probably taken from ______ .
    A. a newspaper        B. a magazine        C. the website      D. a travel handbook

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解


    Fresh flowers actually continue to grow while in a vase．So in order to keep flowers fresh, you need to consider what the flowers need to grow and stay healthy．Flowers need water, light, and food．Besides, you need to be aware of a few precautions to take．
    Distilled water（蒸馏水） is the best kind of water to use for fresh flowers, because there are no chemicals in it．Change the water for your fresh flowers every day or no less than every 2 days to prevent bacteria（细菌） building up．Cut the stems under water again before putting them back in the vase, so that they will be able to draw water up easily．
    Keep your fresh flowers out of direct sunlight．At night, put them in the fridge．This will prolong their life．Adding commercial flower food to good water is probably the best method of keeping flowers fresh．Some people put sugar in the water for food．That is OK, but commercial flower food has bacteria-killing ingredients, which can make the water more acidic（酸性的）．If you want a more natural food for your fresh flowers, try water that has been specially treated．That solution will also give the water acidity, sugar, and bacteria-killing ability．
    Keep your fresh flowers away from fruit．Fruit gas, or ethylene, will reduce the life of your fresh flowers, making them get older faster．Ethylene is what makes fruit ripen．It is given off by dead flowers, too, so be sure to remove them．
    If you follow these tips, your fresh flowers will last a long time and beautify any room in which you put them．
    1．What does the underlined word precautions in Paragraph 1 mean?
    A．problems that happen to flowers． B．advantages of having flowers．
    C．measures taken to prevent problems．   D．preparations to grow flowers outside．
    2．The fact that distilled water is most beneficial for fresh flowers indicates that ______．
    A．distilled water is perfect for people to drink
    B．running water shouldn’t be used to water flowers
    C．it takes great efforts to keep flowers fresh
    D．fresh flowers aren’t used to certain chemicals
    3．In order to prolong the life of fresh flowers, you should ______．
    A．protect them from direct sunlight during the daytime
    B．put them in a damp place at night
    C．put them in a fridge all the time
    D．put them near water during the daytime
    4．Which of the following is the best method of keeping flowers fresh?
    A．Cutting the stems under water before putting them back．
    B．Using distilled water and commercial flower food．
    C．Keeping them away from fruit gas．
    D．Watering them with water which contains sugar．

    查看答案和解析>>

    同步练习册答案