People who have lost the ability to understand or use words due to brain damage are called aphasics（失语症患者）.Such patients can be extremely good at something else.From the changing expressions on speakers' faces and the tones of their voices,they can tell lies from truths.

    Doctors studying the human brain have given a number of examples of this amazing power of aphasics.Some have even compared this power to that of a dog with an ability to find out the drugs hidden in the baggage.

    Recently,scientists carried out tests to see if all that was said about aphasics was true.They studied a mixed group of people.Some were normal;others were aphasics.It was proved that the aphasics were far ahead of the normal people in recognizing false speeches—in most cases,the normal people were fooled by words,but the aphasics were not.

    Some years ago,Dr.Oliver Sacks wrote in his book about his experiences with aphasics.He mentioned a particular case in a hospital.Some aphasics were watching the president giving a speech on TV.Since the president had been an actor earlier,making a good speech was no problem for him.He was trying to put his feelings into every word of his speech.

    But his way of speaking had the opposite effect on the patients.They didn't seem to believe him.Instead,they burst into laughter.The aphasics knew that the president did not mean a word of what he was saying.He was lying!

    Many doctors see aphasics as people who are not completely normal because they lack the ability to understand words.However,according to Dr.Sacks,they are more gifted than normal people.Normal people may get carried away by words.Aphasics seem to understand human expressions better,though they cannot understand words.

    When you get in your car, you reach for it. When you're at work, you take a break to have a moment alone with it. When you get into a lift, you play with it.

    Cigarettes? Cup of coffee? No, it's the third most addictive（使人上瘾的） thing in modern life, the cell phone. And experts say it is becoming more difficult for many people to curb their wishes to hug it more tightly than most of their personal relationships.

    With its shiny surface, its smooth and satisfying touch, the cell phone connects us to the world even as it disconnects us from people three feet away. It affects us in ways its inventors in the late 1940s never imagined.

    Dr. Chris Knippers, an expert at the Betty Ford Center in Southern California, reports that the overuse of cell phones has become a social problem not much different from other harmful addictions: a barrier to one-on-one personal contact, and an escape from reality.

    Sounds extreme, but we've all witnessed the evidence: the person at a restaurant who talks on the phone through an entire meal, ignoring his kids around the table; the woman who talks on the phone in the car, ignoring her husband; the teen who texts messages all the way home from school, avoiding contact with kids all around him. Is it just rude, or is it a kind of unhealthiness? And pardon me, but how is this improving the quality of life?

    Jim Williams, an industrial sociologist based in Massachusetts, he points to a study by Duke University researchers that found one-quarter of Americans say they have no one to discuss their most important personal business with. Despite the growing use of phones, e-mail and instant messaging, in other words, Williams says studies show that we don't have as many friends as our parents. “Just as more information has led to less wisdom, more acquaintances(熟人) through the Internet and cell phones have produced fewer friends,” he says.

    If the cell phone has truly had these effects, it's because it has become very widespread. In 1987, there were only 1 million cell phones in use. Today, almost 300 million Americans carry them. The number of cell phones is far more than that of wired phones in the United States.

    I am a good mother to three children. I have tried never to let my profession stand in the way of being a good parent. I no longer consider myself the center of the universe. I show up. I listen. I try to laugh. I am a good friend to my husband. I have tried to make marriage vows(誓约) mean what they say. I am a good friend to my friends, and they to me. Without them, there would be nothing to say to you today.

    So here's what I wanted to tell you today: Get a life. A real life, not a desire of the next promotion(提升), the bigger paycheck, the larger house.

    Get a life in which you are not alone. Find people you love, and who love you. And remember that love is not leisure(空闲); it is work. Pick up the phone. Send an email. Write a letter. And realize that life is the best thing and that you have no business taking it for granted.

    It is so easy to waste our lives, our days, our hours, and our minutes. It_is_so_easy_to_exist_instead_of_to_live. I learned to live many years ago. Something really bad happened to me, something that changed my life in ways that, if I had my choice, it would never have been changed at all. And what I learned from it is what, today, seems to be the hardest lesson of all I learned to love the journey, not the destination. I learned to look at all the good in the world and try to give some of it back because I believed in it, completely and totally. And I tried to do that, in part, by telling others what I had learned.

    By telling them this: Read in the backyard with the sun on your face. Learn to be happy. And think of life as a deadly illness, because if you do, you will live it with joy and passion(激情) as it ought to be lived.

    A nation's humor is linked to the historical development of the country. How funny somebody finds a certain thing depends on many things including ages, personal experiences, levels of education and locations. Therefore, humor is something that is not always transferable (可转移的) in another country.

    What about when both countries speak the same mother tongue? Does that mean they will then share the same sense of humor, or can differences still take place? Let's take the example of Britain and America. Time and time again, people say that Brits and Americans don't "get" each other's sense of humor. It is often argued that one of the most common differences between the British and American sense of humor is that Americans don't understand irony (反话). Simon Pegg explores this topic in depth in his article What Are You Laughing At? He concludes that this statement isn't true and I agree with him.

    In fact, Brits use irony on a daily basis while Americans don't. I think Americans understand British irony (most of the time anyway); what they don't understand is the need to use it so frequently. When Americans use irony, they tend to say that they are "only kidding". They feel the need to make a joke more obvious than Brits do. Maybe this comes from a fear of offending (冒犯) people.

    The American sense of humor is generally more slapstick (闹剧的) than that in Britain. I think this arises from a cultural difference between the two. Their jokes are more obvious and forward, a bit like Americans themselves. British jokes, on the other hand, tend to be more subtle. This may stem from the fact that British culture is more reserved (矜持的) than American culture.

    Sharon, aged 22

    The most important thing to keep in mind when you're going into high school is to be yourself. Besides, some high school teachers will not care about things like how much homework you have already had in one night. It's best to just learn to deal with things and manage your time wisely so you can achieve everything you need to.

    Frank, aged 21

    I think almost every kid feels both nervous and excited before their first day of high school. You will probably love it. I know I did. You should join some sports or activities that will make your high school experience more enjoyable. Good luck!

    Eddie, aged 20

    When I started high school, I was really nervous too, especially since I had been homeschooled all through middle school and didn't really know anyone. I suppose the best advice would be to just relax. The first couple of days can be a little bit hard, but things will become easier before you know it.

    David, aged 19

    I'm not going to lie. The first day is kind of frightening. But you'll get used to it. Don't be afraid of anyone; some students may pick on (故意刁难) you more if you let them know you're afraid. Just take it easy. Making some friends and staying with them will greatly help you get used to high school quickly. After the first week, it's really not bad at all. Don't worry.

Grizzly bears,which may grow to about 2.5 m long and weigh over 400 kg,occupy a conflicted corner of the American psyche—we revere(敬畏) them even as they give us frightening dreams.Ask the tourists from around the world that flood into Yellowstone National Park what they most hope to see,and their answer is often the same:a grizzly bear.

"Grizzly bears are re-occupying large areas of their former range,"says bear biologist Chris Servheen.As grizzly bears expand their range into places where they haven't been seen in a century or more,they're increasingly being sighted by humans.

The western half of the U.S.was full of grizzlies when Europeans came,with a rough number of 50,000 or more living alongside Native Americans.By the early 1970s,after centuries of cruel and continuous hunting by settlers,600 to 800 grizzlies remained on a mere 2 percent of their former range in the Northern Rockies.In 1975,grizzlies were listed under the Endangered Species Act.

Today,there are about 2,000 or more grizzly bears in the U.S.Their recovery has been so successful that the U.S.Fish and Wildlife Service has twice attempted to de-list grizzlies,which would loosen legal protections and allow them to be hunted.Both efforts were overturned due to lawsuits from conservation groups.For now,grizzlies remain listed.

Obviously,if precautions(预防) aren't taken,grizzlies can become troublesome,sometimes killing farm animals or walking through yards in search of food.If people remove food and attractants from their yards and campsites,grizzlies will typically pass by without trouble.Putting electric fencing around chicken houses and other farm animal quarters is also highly effective at getting grizzlies away."Our hope is to have a clean,attractant-free place where bears can pass through without learning bad habits,"says James Jonkel,longtime biologist who manages bears in and around Missoula.