Sleep is something we all do. But some people need to sleep more than others. Babies sleep most of the time. Children in school sleep about ten to twelve hours a night. Most adults sleep only seven or eight hours.{#blank#}1{#/blank#}All parts of our bodies have to rest after they work.. Our arms need a rest after we lift heavy thing, When we run fast, our legs work hard. They get tired. We have to rest them. Our brains workhard, too.{#blank#}2{#/blank#} We can sit quite still and rest our arms andlegs. But our brains aren't resting. They go right on thinking as long as weare awake.

      Our brains slow down a bit when we sleep and dream.{#blank#}3{#/blank#} Instead of thinking wide-awake thoughts, our brains make up dreams. Some dreams are very pleasing. Some are not. Most of thetime we forget them when we wake up.

      Scientists have tried to find out what would happen if people were not allowed to sleep. They asked some people not to go to bed. The people stayed up all night and all the next day. They stayed up the next night too,and the day after. They played games, but they made mistakes. They forgot things.{#blank#}4{#/blank#} The people grew rude and mean. They became angry with their friends. Finally they were too tired to stand up. When they sat down, they fell asleep.

Scientists have found that if people are not allowed to sleep and to dream, they act in an unusual way.{#blank#}5{#/blank#}But we do know that we need it to stay well. So tonight have a goodsleep. Lie down under the covers. Shut your eyes. Let your thoughts wander.Soon you'll stop thinking. You'll be asleep.

A. It was hard for their tired brains to work.

B. When we are awake, they help us pay attention to the worldaround us

C. But babies, children, and adults—all of us need to haveour sleep

D. Good sleep helps to improve one's memory

E. No one knows why sleep is so good for us

F. But even as we sleep our brains are doing some work

G. Of course you will have a good sleep

    All over the world people are hooked on sports, which help them to strengthen their body and build their character.{#blank#}1{#/blank#} They improve the participants' physical skills, and provide entertainment for the audience as well.

    Many people like to watch others play games.{#blank#}2{#/blank#}Often they get very excited when “their” player or team wins. If they are crazy about the game or the player, then they'll become their die-hard fans. Some sports are so interesting that people everywhere go in for them. Football, for example, has spread around the world. Swimming is popular in countries near the sea or in those with many rivers.{#blank#}3{#/blank#}And think of people in cold countries. Masses of people love to skate or ski in Japan, Norway or Canada.

    {#blank#}4{#/blank#}Chinese boxing, also has a very long history. But basketball and volleyball are rather new, which started in the late of the nineteenth century. People are inventing new sports or games all the time. Water skiing, as a modern game, is one of the newest in the family of sports.

    People from different countries or races may not be able to understand each other, but after a game, they get to know each other better and they often become good friends.{#blank#}5{#/blank#}They learn to fight hard but fight fair, to win without pride and to lose with grace. They also learn to be competitive and optimistic, which will equip them for life challenges in the future.

A. They buy tickets or turn on the TV to watch the games.

B. What fun it is to jump into a pool or lake, whether in China, Egypt or Italy!

C. Some sports or games date back thousands of years, like running or jumping.

D. Sports help to train a person's character.

E. Chinese people liked doing sports even in ancient times.

F. Sports are competitive physical activities or games through casual or organized participation.

G. And the friendship may last for a life time.

    Do you have the experience of digging out your suitcase, deciding what to bring and being afraid that you've forgotten something? {#blank#}1{#/blank#} Hope they can transform the way you pack.

Keep a Basket Handy

    Do you wait until the last minute to pack? Keep a basket in your bedroom, living room, or bath room that you can use to throw in items you need to pack as you come across them. {#blank#}2{#/blank#}Besides, you can just put the contents of the basket into your suitcase if you are in a hurry to leave for the airport.

Buy Wrinkle-free Clothing

    You won't need to worry about carefully packing your items of clothing if they're made from wrinkle-free materials.{#blank#}3{#/blank#} They'll still look fresh and bright when you are in them at your destination.

Keep Old Packing Lists

    Chances are that you end up taking trips that require you to pack similar items. Keep old packing lists from former vacations to the beach, ski resort, and city - that way, you'll always have a list of at least the basics.{#blank#}4{#/blank#}So you don't need to waste your effort to remember where you left your hand-written packing lists.

Schedule a Packing Time

    Time can slip away from you before a trip — you may be caught up at work, at home, or be occupied with other responsibilities of daily life. {#blank#}5{#/blank#}That way, you will not need to do your packing frantically（狂乱地）from the last minute to 1 o'clock on the day you leave.

A. Buy necessary stuff when you arrive.

B. That's why I've distilled（提炼）the art of packing down to some essential trips.

C. Just roll them up or put them at the bottom of the suitcase.

D. Determine a night well in advance of departure to pack.

E. Rolling your clothes is the best way to save space for the suitcase.

F. The best way to do this is to save them on your computer.

G. This makes you less likely to forget the stuff.

    Stress(压力) is a popular cause of major diseases affecting people worldwide. It is so common that people have begun to search for the best and easiest ways to reduce stress. {#blank#}1{#/blank#} 

    Exercise for a better life.

    Regular runners say that there is no better feeling than the one you get when you finish your daily run. Exercising is a good way for you to remove stress from your life. {#blank#}2{#/blank#} And it can also lift your mood. An additional benefit of exercising is that it keeps you fit and healthy!

    Organize it.

    Keeping your workplace and home organized is also a way for you to avoid stressful situations. Working in a messy(凌乱的) area keeps your brain thinking on several different things at the same time. {#blank#}3{#/blank#} 

    Manage your time wisely.

    {#blank#}4{#/blank#} Sticking to(坚持) your schedule gives you focus and a goal to work on. It also helps you avoid missing out on deadlines which are a great source of stress. Managing your time wisely means managing your stress.

    In a word, we shouldn't let stress stop us living a normal and healthy life. Stress will naturally appear due to the modern way of life. {#blank#}5{#/blank#} Don't let stress get the better of you and make you lead an unhappy life.

A. Avoid stressed people

B. Know what causes your stress.

C. Plan your day ahead and stick to it.

D. Here are some ways to say goodbye to stress.

E. Regular exercise gives you time to think things.

F. And it gets hard to focus on (思想集中) just one thing.

G. But just like fire, if we control stress it can't hurt us.

    Both men and women are living longer these days in industrialized countries.{#blank#}1{#/blank#}In general, they can expect to live six or seven years more than men. One reason for this is biological. One important biological factor that helps women live longer is the difference in hormones between men and women. {#blank#}2{#/blank#} Between the ages of about 12 and 50, women produce hormones that are involved in fertility(生育能力). These hormones also have a positive effect on the heart and blood flow. In fact, women are less likely to have high blood pressure or to die from heart attacks.

    {#blank#}3{#/blank#}They help the body defend itself against some kinds of infections. This means that women generally get sick less often and less seriously than men. The common cold is a good example: women, on average, get fewer colds than men.{#blank#}4{#/blank#}Scientists are still not exactly sure how they influence aging, but they believe that they do. Some think that a woman's body cells have a tendency(向) to age more slowly than a man's. Others think that a man's body cells have a tendency to age more quickly.{#blank#}5{#/blank#}

A. However, women, on average, live longer.

B .The biological factor plays an important part.

C. Women are also helped by their female genes.

D. The female hormones also protect the body in another way.

E. Recent research seems to support both of these possibilities.

F. However, women are more healthy than men and can live a better life.

G. Hormones are chemicals which are produced by the body to control carious body functions.

Why people collect art

    Many people through history have gone to great lengths to collect art. But what motivates these collectors?

    One popular explanation for collecting is that they can have financial gain. Some resell works, earning enormous profit. {#blank#}1{#/blank#} Immorally, some 'collectors' buy art as a form of money laundering(洗钱), since it is far easier to move art than cash between counties without examination.

    {#blank#}2{#/blank#} For them, art is important for other reasons. The best way to understand the underlying drive of art collecting is as a means to create and strengthen social bonds, and as a way for collectors to communicate within these new networks.

Collectors are not only interested in creating social links; they are also motivated by the messages they can send once these social networks are created. We all know art is a powerful way for the artist to express thoughts and feelings. {#blank#}3{#/blank#} Displaying art can send a message about who the collector really is — at least who she sees herself as.

    {#blank#}4{#/blank#} Through the collections, collectors convey messages not just about themselves, but about the world as a whole. For example, the kid with the shoebox of bird feathers might show others her collection not just to make friends, but also to convince them about the importance of protecting endangered species.

    People collect art for various reasons. {#blank#}5{#/blank#}

A. Some gain art works in an illegal way.

B. But most collectors think little of profit.

C. Artworks preserve the qualities of their makers.

D. No doubt art collection is a hard addiction to overcome.

E. Some get large tax reductions for donating art to museums.

F. It also serves as an effective way to express collectors.

G. Other art collectors see their collections as having a broader power.