You walk into the classroom, look at that white piece of paper in front of you and are told you've got an hour and a half to do it. That can make anyone nervous, but here is the guide to stay calm.

    Get a good night's sleep the night before the test, and eat a healthy breakfast next day. {#blank#}1{#/blank#} If you're too tired, you won't remember what you learnt the night before.

    Get to class a little earlier. If you get there early, you'll make sure to get your favorite seat. {#blank#}2{#/blank#}

    Breathe. Before the test, breathe in through your nose deeply and slowly. {#blank#}3{#/blank#} Repeat this several times. If you experience a sudden panic during the test, perform the exercise again.

    Skip questions if necessary. {#blank#}4{#/blank#} If you come across a difficult question, skip the question and move on. You can come back to it at the end of the test if you have time, and later questions may help you get the answer(s) to the one(s) you skipped.

    {#blank#}5{#/blank#} Don't panic if you notice other students writing very quickly or handing in their tests early. Tell yourself it's just a test. Really, it is. No matter what happens, everything will be OK.

    A study published Monday found that people who sleep less tend to be fat，and experts said it's time to find out if more sleep will fight fatness.

    “We've put so much emphasis on diet and exercise that we've failed to recognize the value of good sleep，”said Fred Turek，a physician at Northwestern University.

    Monday's study from Eastern Virgnia Medical School in Norfolk covered 1,000 people and found that total sleep time decreased as body mass index－a measure of weight based on height increased.

    “Men slept an average of 27 minutes less than women and overweight and fat patients slept less than patients with normal weights，”it said.In general the fatter subjects slept about 1.8 hours a week less than those with normal weights.

    “Americans experience insufficient sleep and fat bodies.Clinicians are aware of the burden of fatness on patients，”the study said.

    “Our findings suggest that major extensions of sleep time may not be necessary，as an extra 20 minutes of sleep per night seems to be associated with a lower body mass index，”it added.

    “We caution that this study does not set up a cause­and­effect relationship between restricted sleep and fatness，but investigations indicating success in weight loss via extensions of sleep would help greatly to set up such a relationship.”

    The study was published in the Archives of Internal Medicine along with an editorial by Turek and Northwestern colleague Joseph Bass commenting on it and related research.

    In an interview，Turek said some studies have shown the lack of sleep causes declines in an appetiteholding back protein hormone，and increases in another hormone that cause a longing for food.“In addition neuropathies(神经疗法)in the brain governing sleep and fatness appear to overlap(部分重叠)，”he said.

    “Fatness has been rising dramatically in developed countries and reached epidemic(流行病)levels in the United States，”it added，“leading to a variety of health problems.”

    It seems that there is never enough time in the day. But,since we all get the same 24 hours,why is it that some people achieve much more than others?{#blank#}1{#/blank#}.

Keep a to-do list.

    You should have a reminder system to tell you when you need to do what.{#blank#}2{#/blank#}Carry a pen andpaper wherever you go and write down the things you need to do, including appointments and deadlines.

Set goals.

    Set yourself specific goals,and make sure that they are realistic. To do this, you first need to examine your present situation and assess（判断）which goals are important to you. Have a secondary route to your goals in case you have to change your plans.

Break down (分解）tasks.

    Break goals down into different parts so that you can accomplish them one step at a time{#blank#}3{#/blank#}Try to complete one task before you go on to the next.

Organize your time.

    {#blank#}4{#/blank#}A good way to do this is to record everything you do for a week in detail and then examine your record to see how you use or waste your time.

{#blank#}5{#/blank#}

    Keep your work space tidy so that you can work efficiently - it's hard to work if things you need to find are buried under a pile of paper! Work to schedule (为...安排时间）so that you can meet deadlines in good time - don't leave everything until the last minute.

A Develop a regular work order.

B. Make a detailed plan.

C. The best time to do something is usually NOW.

D. The answer lies in good time management.

E. Don't try to remember everything in your head.

F.Write these steps down, and try to be as detailed as you can when you do this.

G. Identify areas of your life where you are wasting time and try to reduce them.

    Every animal sleeps, but the reason for this has remained foggy. When lab rats are not allowed to sleep, they die within a month.{#blank#}1{#/blank#}

    One idea is that sleep helps us strengthen new memories. {#blank#}2{#/blank#} We know that, while awake, fresh memories are recorded by reinforcing (加强) connections between brain cells, but the memory processes that take place while we sleep have been unclear.

    Support is growing for a theory that sleep evolved so that connections between neurons (神经元) in the brain can be weakened overnight, making room for fresh memories to form the next day.{#blank#}3{#/blank#}

    Now we have the most direct evidence yet that he is right.{#blank#}4{#/blank#} The synapses in the mice taken at the end of a period of sleep were 18 per cent smaller than those taken before sleep, showing that the connections between neurons weaken while sleeping.

    If Tononi's theory is right, it would explain why, when we miss a night's, we find it harder the next day to concentrate and learn new information — our brains may have smaller room for new experiences.

    Their research also suggests how we may build lasting memories over time even though the synapses become thinner. The team discovered that some synapses seem to be protected and stayed the same size. {#blank#}5{#/blank#} "You keep what matters," Tononi says.

A. We should also try to sleep well the night before.

B. It's as if the brain is preserving its most important memories.

C. That's why students do better in tests if they get a chance to sleep after learning.

D. Similarly, when people go for a few days without sleeping, they get sick.

E. The processes take place to stop our brains becoming loaded with memories.

F. Tononi's team measured the size of these connections, or synapses, in the brains of 12 mice.

G. "Sleep is the price we pay for learning," says Giulio Tononi, who developed the idea.

注意：每个空格只填1个单词。

The changes facing fast-food companies

    Fast food was once thought to be recession-proof. When consumers need to cut spending, cheap meals like Big Macs and Whoppers become even more attractive. As a result, fast-food chains have survived the recession better than their more expensive competitors. In 2009 sales at full-service restaurants in America fell by more than 6%, but total sales remained about the same at fast-food chains. In some markets, such as Japan, France and Britain, total spending on fast food increased.

    But in this ongoing recession(萧条), which is more severe, not all fast-food companies have been as fortunate. Many, such as Burger King, have seen sales fall. In the recession, while some people trade down to fast food, many others eat at home more frequently to save money. Smaller fast-food chains in America, such as Jack in the Box and Carl's Jr., have been hit particularly hard in this downturn because they cut back spending on advertising.

    In face of such challenges, some fast-food companies have sacrificed their own profits by trying to give customers better value. During the recession companies set prices low, hoping to tempt more customers through the door. But in many cases that strategy doesn't work. Some companies are rethinking their strategies. KFC has launched a chicken sandwich that costs around $5 to attract consumers away from $1 specials.

    Companies are also trying to get customers to buy new and more items, including drinks. McDonald's started selling better coffee as a challenge to Starbucks. Its “McCafe” line now accounts for an estimated 6% of sales in America. As fast-food companies shift from “super size” to “more buys”, they need to keep customer traffic high throughout the day. Many see breakfast as a big opportunity, and not just for fatty food. McDonald's has started selling porridge in America, because the profits can be high.

    But what about those growing waistlines? So far, fast-food firms have cleverly avoided government regulation. By providing options like salads and low-calorie sandwiches, they have at least given the impression of doing something about helping to fight obesity(肥胖). These offerings don't necessarily lead to profit loss, as they can broaden the appeal of stores to groups of diners that include some people who don't want to eat a burger.

    But calls for tougher government regulation never wear down. This year Congress passed America's health-reform bill, which requires restaurant chains with 20 or more stores to put the calorie-content of items they serve to the menu. And the recent proposal by a county in California to ban McDonald's from including toys in its high-calorie “Happy Meals”, because law makers believe it attracts children to unhealthy food, suggests that fast-food companies will have to continue trying something new.

    The changes facing fast-food companies

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    An inferiority complex（自卑情结） as the name suggests is a complex in which an individual has strong feelings of inferiority. While we all have weak points, the person with an inferiority complex will focus on these weaknesses and use them to evaluate their overall worth. As a result, they see themselves generally less important or successful than others.

    In some cases inferiority complex can lead to overcompensation. Here the individual does everything in his power to overcome his inferiority and this can mean that they end up in highly successful jobs, gaining great wealth and succeeding in powerful relationships. However while such a person might be a high achiever, a sense of inferiority will mean that they will always be less happy than they could be and it may have other negative impacts on their life.

    Another possible outcome of an inferiority complex is that the individual ends up backing down from difficult situations and acting without any sense of worth or entitlement（权利）. Here the person's low self belief changes the way he behaves, and that in turn changes the way he is treated by others which in turn results in him actually becoming inferior in some ways.

    There are many factors that may lead to inferiority, but they tend to be the result of conditioned beliefs that come from continuous failure or criticism. Often parental attitudes can result in an inferiority complex if the child did not receive the right encouragement or unconditional love when growing up. In some cases an inferiority complex could also arise as a result of some kind of defect（缺陷） either physical or mental.

    If you are suffering from an inferiority complex, it's time that you did something about it.

    One of the very best ways to improve your self esteem is to find a loving partner. This is a great way to make you more confident as he or she will love you for who you are and always be there to support you and increase your confidence. Another is to take up a hobby. Find one thing that you are good at and then get your confidence from that. For instance, you might choose to take up a sport or woodwork, and then you can practice getting better at that and gain more confidence. Moreover, you can turn to self-help book. If you find the right books and follow the advice carefully, then it is possible to transform the way you view yourself and the way you present yourself.