A new study suggests that the timing of a wound affects the speed at which it heals(愈合). Wounds suffered during the day heal around 60 percent faster than those at night.

    The study showed how the body's circadian rhythm(昼夜节律) controlled the healing of wounds{#blank#}1{#/blank#} It tells our bodies when to wake up, eat and sleep in a cycle—a series of activities that repeat themselves day after day{#blank#}2{#/blank#}

    In the study, researchers found that skin cells moved faster to repair wounds suffered during the day. Their findings were published in the journal Science Transnational Medicine.

    The researchers examined cells, mice, and burn injury databases{#blank#}3{#/blank#}Night-time burns—burns suffered between 8 o'clock at night and 8 o' clock the next morning—were 95percent healed after an average of 28 days.

    But after an average of 17 days, daytime burns-burns suffered between 8 o'clock in the morning and 8 o'clock at night—were 95 percent healed{#blank#}4{#/blank#}

    Wounds are very costly to treat{#blank#}5{#/blank#}In Britain's National Health Services, for example, such services cost around $6.56 billion per year. Experts say the high costs result, in part, from a lack of drugs that speed up the closure of wounds.

A. Each cycle lasts about 24 hours.

B. The circadian rhythm is like a clock or timer.

C. Specifically their investigation found the following information:

D. The new study's findings could help scientists develop better drugs.

E. In other words, nigh-time injuries took an average of 11days longer to heal

F. Worldwide, billions of dollars are spent every year on wound-treatment services.

G. That's what a group of researchers from a university in Canada recently published.

                                                                            Master Your Deadlines

    The struggle begins in high school, sometimes earlier. Deadlines, and lots of them, start to pile up. At college, the pressure sometimes leads to last-minute rush and unsatisfactory work. At work, failing to meet deadlines can easily get you fired.{#blank#}1{#/blank#} Here are a few best practices.

    Assign deadlines to what matters.

    If the task isn't of high importance, don't set a specific deadline. In this way, you are able to keep it on your radar for a while without feeling pressured.{#blank#}2{#/blank#} This will provide just enough pressure to ensure you get it done.

    {#blank#}3{#/blank#}

    Set a personal deadline for yourself a day or two before the actual deadline.{#blank#}4{#/blank#} If you're working with a group of people, add in even more time to account for potential follow-ups and the need for approvals.

    Keep communicating.

    {#blank#}5{#/blank#} This means letting others know when something is taking longer than expected, when a delivery didn't come in, when a client is not providing the necessary information, etc. Although it may feel embarrassing to admit that something is not on schedule, being honest is much better for relieving your stress.

A. Plan for flexible hours.

B. Finish your project as early as possible.

C. But if an activity is urgent, set a deadline immediately.

D. In this way, you'll never have to stay up late and feel stressed.

E. But handled properly, deadlines can actually improve productivity.

F. Whenever you feel challenged to finish work on time, communicate.

G. So if anything takes longer than expected, you can still wrap it up and submit it on time.

    The key to dealing with test-day anxiety is through preparation! {#blank#}1{#/blank#} It is important to prepare your mind and body for the experience of working under pressure.

    Get some sleep. I know you've heard this before, but it's often repeated because it's so important. Get plenty of sleep the night before the test! If you don't have enough rest, you'll find it much harder to concentrate. {#blank#}2{#/blank#}

    Leave early. Be sure to leave earlier than normal on the day of a test to avoid the added fear of arriving late. {#blank#}3{#/blank#} The embarrassment will cause you to be distracted and lose valuable time.

    {#blank#}4{#/blank#} Once you arrive at school or at the testing center, find a quiet space where you can be all alone. You can use your car if you drive, or you can find an empty locker room or office (ask a teacher). Once you locate in a quiet place, do a relaxation session. Close your eyes and try to relax completely. Take deep breath and keep calm.

    {#blank#}5{#/blank#} It's possible that some students start to stress out as other students discuss the material. When you hear others chatting, it might sound like you skipped over something important or you misunderstood a concept. It's probably not even true——but it can seem like it!

A. Take a quiet moment.

B. A sleepy brain is a foggy brain!

C. Watch out for the road conditions.

D. Walking into an exam late is the last thing you need!

E. You might also find time for a quick bite during a break.

F. Don't talk with other students in the minutes before a test.

G. But full preparation means more than knowing the test material.

    Parents often say that they don't mind what their children do in life just as long as they are happy. Happiness and pleasure are almost universally seen as among the most precious human goods.{#blank#}1{#/blank#}Philosopher Jeremy Bentham believed that all sources of pleasure are of equal quality, but John Stuart Mill disagreed. Mill argued for a difference between higher and lower pleasure.{#blank#}2{#/blank#}Lower pleasure, in contrast, requires mere (仅仅的；纯粹的) senses.

    The entire debate assumes a clear divide between the physical and the mental.{#blank#}3{#/blank#}What will it mean for our ideas about pleasure?

    {#blank#}4{#/blank#}Food is usually considered to be the lower pleasure. All animals eat, using the senses of smell and taste. It doesn't require any complex cognition (认知) to conclude that something is delicious. However, these people failed to appreciate something that the French food writer Jean Anthelme Brillat-Savarin captured. That is, "Animals feed; man eats; only the man of intellect(才智) knows how to eat."

    Eating shows that the difference between higher pleasure and lower pleasure is not what you enjoy but how you enjoy it.{#blank#}5{#/blank#}Preparing it using the powers of reflection and attention turns it into a higher pleasure.

A. The dining table is a good place to start.

B. Wolfing down your food is a lower kind of pleasure.

C. What's the real difference between high and low pleasure?

D. What happens if the physical and the mental cannot be separated?

E. All philosophers believed that cookery could never be a form of art.

F. Higher pleasure depends on human abilities such as self-awareness or language use.

G. However, disagreements will be caused about whether some forms of pleasure are better than others.

    I have been lucky enough to be right next to dolphins playing in perfect surf, using the power of the waves to travel even faster than they normally swim. There is np doubt that they are enjoying themselves and, though I can't swim like a dolphin, {#blank#}1{#/blank#}.

    Bodysurfing involves riding on a wave with no help from any device (装置) such as a surfboard, which makes it the "purest" form of surfing. In fact, it is one of very few extreme sports—free climbing and cliff diving are others—{#blank#}2{#/blank#}.

    However, it is more enjoyable and safer if you use flippers (脚蹼). This is because they enable you to swim faster, and so catch waves and surf along them more easily. {#blank#}3{#/blank#}. Another aid is a handboard, a mini-surf board about the size of an iron, held in one hand to generate more speed along the wave.

    To catch a wave, swim to where the waves break and, as one approaches, start swimming towards the beach. You must try to travel at the same speed as the wave and, if you do it correctly, you will feel the wave lifting you and pushing you forwards. {#blank#}4{#/blank#}.

    Bodysurfing is not a professional sport, {#blank#}5{#/blank#}—the Pipeline Bodysurfing

    Classic—held each year at the legendary Banzai Pipeline in Hawaii. Local bodysurfers compete against athletes from places such as Australia, Brazil, Japan or France, in terrifying walls of water above the sharp coral reef.

    For me no other sport is as much fun as bodysurfing. There's a good reason why dolphins choose not to use surfboards!

When was the last time something important slipped your mind?. Maybe it was the answer to a test question, the name of an acquaintance or where you left your keys. {#blank#}1{#/blank#}People's ability to remember has less to do with natural talent than it does with training and practice. When students want to prepare for a test they often try to study by simply reading over the material. again, copying notes, etc. {#blank#}2{#/blank#} People remember more when they actively engage with the material they are learning rather than passively receiving it.

{#blank#}3{#/blank#} Come up with questions about the topic, and try to answer them without looking at your notes. It also helps. to try to engage with the material in different ways. For example; you could sketch or diagram the information, or you. could write your own outline or study guide. The more you use the information, the more likely you are to remember it.

A psychologist(心理学家) named . Herman Ebbinghaus made. an important discovery about memory and forgetting. He found that people tend to forget information in a regular pattern. They forget the most information shortly after learning it. {#blank#}4{#/blank#} Every time the person reviews the information, it causes them to forget less of it——which means they remember more. So it is essential to review things you want to remember shortly after learning them. {#blank#}5{#/blank#}

Applying these strategies will help improve your memory so that you can access everything you learn whenever you need it.

A. Practice makes perfect.

B. Strike while the iron is hot.

C. Fortunately, memory can be improved.

D. Over time, you can review them less and less frequently.

E. The rate at which they forget then slows down over time.

F. One great way to do this is to test yourself on the material.

G. But these methods of remembering are not always effective.