On the eve of our daughters' weddings, I gave both of them what Iconsidered to be excellent marital advice: never leave your husband unsupervised(无人监督的) with pruning shears (修枝剪).

If only I had taken my own advice. I recently let my guard down. Thirty-some years of marriage can do that toa woman. Give a man pruning shears and electric trimmers (电动修剪器) and he will givenew meaning to “armed and dangerous.”

One day earlier this year, my husband saidthat the crab apple tree was dead.

“Why do you think it is dead?” I asked.

“Look at it. There's not a leaf on it.”

“There's not a leaf on anything. It'sMarch,” I said.

“It looked sick last fall and with thisbitter winter we had, I'm convinced it's dead.”

The truth is he's never liked thecrabapple. Sure, it has beautiful blooms in the spring, but then it gets adisease, the leaves curl, and it drops those little apples that sit on thedriveway.

Each passing week he pronounced the treedead. Eventually I began to believe him. Though he agreed it would be aregrettable loss, there was a twinkle in his eye. He armed himself a couple ofweeks ago and began trimming. A branch here, a branch there, a small limb, thena large limb. I watched and then decided to check the wood on some of thebranches closer to the trunk. I broke one off and saw green.

The crabapple was not dead. It just hadn'thad time to leaf out. The tree was now falling to one side, but it was notdead. I would have told him so, but he had moved on to a maple. Once the manstarts, he can't stop. One trim leads to another.

“Please, stop!” I called.

He smiled and nodded, but he couldn't hearbecause he had started the hedge (树篱) trimmers and was getting ready to fix a line of hedges.

Zip (飕飕声), zip, zip.

“What do you think?” he shouted.

“It's supposed to be a privacy hedge; nowall that will be private are our ankles.”

He started the trimmers again.

“Stop!” I called, “Come back!”

“Why?” he shouted.

“You're in the neighbor's yard.”

    In the mid­1950s，I was a somewhat bored early­ado lescent male student who believed that doing_any_more_than_necessary_was_wasted_effort.One day，this approach threw me into embarrassment.

    In Mrs.Totten's eighth­grade math class at Central Avenue School in Anderson，Indiana，we were learning to add and subtract decimals (小数)．

    Our teacher typically assigned daily homework，which would be recited in class the following day.On most days，our grades were based on our oral answers to homework questions.

    Mrs.Totten usually walked up and down the rows of desks requesting answers from student after student in the order the questions had appeared on our homework sheets.She would start either at the front or the back of the classroom and work toward the other end.

    Since I was seated near the middle of about 35 students，it was easy to figure out which questions I might have to answer.This particular time，I had completed my usual two or three problems according to my calculations.

What I failed to expect was that several students were absent，which threw off my estimate.As Mrs.Totten made her way from the beginning of the class，I desperately tried to determine which math problem I would get.I tried to work it out before she got to me，but I had brain freeze and couldn't function.

    When Mrs.Totten reached my desk，she asked what answer I'd got for problem No.14.“I...I didn't get anything，”I answered，and my face felt warm.

     “Correct，”she said.

    It turned out that the correct answer was zero.

    What did I learn that day？First，always do all your homework.Second，in real life it isn't always what you say but how you say it that matters.Third，I would never make it as a mathematician.

    If I could choose one school day that taught me the most，it would be that one.

    Some of the most famous universities in America are urging students to consider the idea of putting off college for a year. It's called a “gap year.” And while it's been common and popular in Australia and the U.K. for decades, the concept is now starting to gain significant steam here in America.

    Why? A growing number of high school seniors are tired of riding the academic conveyor belt from preschool all the way to university. They're burnt out. Or not quite ready. Or they want to explore a few interests before deciding what to study in college, they're volunteering in New Orleans or teaching in Thailand. They're starting the great American novel, or working for a short time to help figure out what they want to do with their lives.

    Understandably, that makes a lot of parents nervous. But a gap year does not mean that a student will remain degree-less forever. While there are no formal studies on the number of students who don't finally go to college after the gap year, evidence from admissions officers across the country says very few actually leave college without finishing their courses. Taking a gap year can actually make kids more focused and ready for future academic life. In fact, Harvard University believes so much in the gap year that it encourages every student it admits to consider a year off before matriculation (入学).

    The reason behind higher education's support of the gap year is clear: Better-prepared students mean higher completion rates. And it's completion that matters. Parents should remember that getting a kid into college is only half the battle. According to the College Board, three out of five students who enter a public four-year college don't manage to obtain a degree within five years. And nearly 30 percent of all students who enter college don't return after the gap year. Considering the fact that this year's average price at a four-year private college is about $ 23,712 per year, it's a pretty expensive place to play around.

    One of the qualities that most people admire in others is the willingness to admit one's mistakes. It is extremely hard sometimes to say a simple thing like "I was wrong about that," and it is even harder to say, "I was wrong, and you were right about that."

    I had an experience recently with someone admitting to me that he had made a mistake fifteen years ago. He told me he had been the manager of a certain store in the neighborhood where I grew up, and he asked me if I remembered the egg cartons (in many countries, eggs are sold by the dozen and are put in cartons.) Then he related an incident (event, matter) and I began to remember unclearly the incident he was describing.

    I was about eight years old at the time. I went into the store with my mother to do some shopping. On that particular day, I must have found my way to the food department where the incident took place.

    There must have been a special sale on eggs that day because there were lots of eggs in dozen and half-dozen cartons. The cartons were put three or four feet high. I must have stopped in front of the piles of egg cartons. Just then a woman came by pushing her shopping cart and knocked off the cartons. For some reason, I decided it was up to me to put the eggs back together, so I went to work.

    The manager heard the noise and came rushing over to see what had happened. When he appeared, I was on my knees looking at some of the cartons to see if any of the eggs were broken, but to him it looked as though I was the one who just did it. He severely reprimanded me and wanted me to pay for any broken eggs. I tried to explain, but it did no good. Even though I quickly forgot all about the incident, it is plain that the manager did not.

    Samuel Osmond is a 19-year-old law student from Cornwall, England. He never studied the piano. However, he can play very difficult musical pieces by musicians such as Chopin and Beethoven just a few minutes after he hears them. He learns a piece of music by listening to it in parts. Then he thinks about the notes(音符) in his head. Two years ago, he played his first piece Moonlight Sonata（奏鸣曲）by Beethoven. He surprised everyone around him.

    Amazed that he remembered this long and difficult piece of music and played it perfectly, his teachers say Samuel is unbelievable. They say his ability is very rare, but Samuel doesn't even realize that what he can do is special. Samuel wanted to become a lawyer as it was the wish of his parents, but music teachers told him he should study music instead. Now, he studies law and music.

Samuel can't understand why everyone is so surprised. "I grew up with music. My mother played the piano and my father played the guitar. About two years ago, I suddenly decided to start playing the piano, without being able to read music and without having any lessons. It comes easily to me —I hear the notes and can bear them in mind—each and every note," says Samuel.

Recently, Samuel performed a piece during a special event at his college. The piece had more than a thousand notes. The audience was impressed by his amazing performance. He is now learning a piece that is so difficult that many professional(专业的) pianists can't play it. Samuel says confidently, "It's all about super memory—I guess I have that gift."

    However, Samuel's ability to remember things doesn't stop with music. His family says that even when he was a young boy, Samuel heard someone read a story, and then he could retell the story word for word.

    Samuel is still only a teenager. He doesn't know what he wants to do in the future. For now, he is just happy to play beautiful music and continue his studies.

    We often ask these questions: Are African wild dogs really dogs? What's the difference between African wild dogs and the dogs we know as pets? For one thing, African wild dogs, which live in Africa, only have four toes, while domestic(驯养的）dogs and wolves have five. But you won't want to count for yourself, because they are truly wild animals.

    “Wild dogs are not somebody's domestic dogs that ran away and didn't come back, although some people used to think that,” explains Dr. MeNutt, who studies these animals at Wild Dog Research Camp in the African country of Botswana. “They are actually Africa's wolves, and just like wolves, and they do not make good pets. They need to be out in the wild doing what they are supposed to do — find the food they need to survive and feed their babies.” In fact, they travel so far that researchers have to use radio collars (颈圈) to keep track of them. The collars send out radio signals that tell people where the dogs are. No two wild dogs have the same pattern of coats, so it is easy to tell them apart.

    African wild dogs are smart and sociable, like pet dogs. Adult wild dogs, male and female, are willing to take good care of young ones.

    Millions of domestic dogs live on the planet, but there are probably fewer than 6000 African wild dogs left. Humans hunt them and farmers who don，t want them to go after cows and sheep poison them. Humans are also destroying the wild, natural habitat (栖息地) they need to survive in. Fortunately, today more farmers are finding other ways to protect their cows and sheep from African wild dogs instead of killing the animals.