Memory, they say, is a matter of practice and exercise. If you have the wish and really made a conscious（自觉的）effort, then you can quite easily improve your ability to remember things. But even if you are successful, there are times when your memory seems to play tricks on you.

    Sometimes you remember things that really did not happen. One morning last week, for example, I got up and found that I had left the front door unlocked all night, yet I clearly remember locking it carefully the night before.

    Memory “trick” work the other way as well. Once in a while you remember not doing something, and then find out that you did. One day last month, for example, I was sitting in a barber（理发师）shop waiting for my turn to get a haircut, and suddenly I realized that I had got a haircut two days before at the barber shop across the street from my office.

    We always seem to find something funny and amusing（有趣的）in incidents caused by people's forgetfulness or absent-mindedness. Stories about absent-minded professors have been told for years, and we never got tired of hearing new ones. Unfortunately, however, absent-mindedness is not always funny. There are times when “trick” of our memory can cause us great trouble.

    On the day the tornado hit, there was no indication that severe weather was on its way—the sky was blue and the sun bad been out. The first alert my husband,Jimmy,67,and I,65,got came around 9 p.m., from some scrolling text on the TV Jimmy was watching. He ran upstairs to find me in our third-floor bedroom, and we changed the channel from the presidential primary debate I had been watching to our local Pensacola, Florida, station.

    No sooner had we found coverage of the tornado than it was on top of us. It was the loudest thing I have ever heard. The bones of the house shook, and the power went out. The wind began to roar through the house, most likely through blown-out windows and the door to our garage. We had three flights of steps to navigate to get to the relative safety of the first floor, because the cupboard down there is underneath a brick staircase.

    I didn't know how or if we would make it down the steps. It felt as if there were no floor underneath me as the wind lifted me off my feet. I tried to move forward, but this intense pressure held me in place.

    As we reached the last flight of steps, our front door blew out. Pieces of glass that looked like crushed ice flew everywhere. Suddenly, a three-foot-long tree branch crashed into the door frame. It flew over our heads, missing us by inches. Had we been one step up, it would have hit us.

    By the time I reached the cupboard, the tornado had been over us for about a minute. Jimmy pushed me down to the cupboard floor, but he couldn't get inside himself because of the wind. I held Jimmy's arm and tried to bring Jimmy with it. My knees were full of glass, but at that moment, I felt no pain. If I had let go, Jimmy would have flown right out the back of the house and into the bay.

    All of a sudden, Jimmy lifted off his feet like people in tornadoes do in the movies. I thought he was gone. And then everything stopped. He landed on his feet. In those first quiet moments, I couldn't believe it was over, Jimmy said he'd go outside to check. "No,"I said. "Don't leave me. Don't leave me."

    Our neighbor says the storm lasted four minutes. In that time, four of the twelve town houses in our unit were completely destroyed. Of the houses left standing, ours suffered the most damage. Amazingly, none of us were severely injured.

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    In 1943, when I was 4, my parents moved from Coeur d'Alene, Idaho, to Fairbanks, Alaska, where adventure was never very far away.

We arrived in the summer, just in time to enjoy the midnight sun. All that sunlight was fantastic for Mom's vegetable garden. Working in the garden at midnight tended to throw her timing off, so she didn't care much about my bedtime.

    Dad was a Railway Express agent and Mom was his clerk. That left me in a mess. I usually managed to find some trouble to get into. Once I had a little Are going in the dirt basement of a hotel. I had tried to light a barrel（桶） of paint but couldn't really get a good fire going. The smoke got pretty bad, though, and when 1 made my exit, a crowd and the police were there to greet me. The policemen took my matches and drove me

    Mom and Dad were occupied in the garden and Dad told the police to keep me, and they did! I had a tour of the prison before Mom rescued me. 1 hadn't turned 5 yet.

    As I entered kindergarten, the serious cold began to set in. Would it surprise you to know that I soon left part of my tongue on a metal handrail at school?

    As for Leonhard Seppala, famous as a dog sledder (驾雪橇者), I think I knew him well because I was taken for a ride with his white dog team one Sunday. At the time I didn't realize what a superstar he was, but I do remember the ride well. I was wrapped (包裹) heavily and well sheltered from the freezing and blowing weather.

    In 1950, we moved back to Coeur d'Alene, but we got one more Alaskan adventure when Leonhard invited us eight years later by paying a visit to Idaho to attend a gathering of former neighbors of Alaska.

    American and British people both speak English of course. But sometimes it does not seem like the same language. In fact, there are some important differences between British English and American English.

    First of all, they sound very different. Often, Americans don't say each word separately. They say several words together. Americans may say "I dunno" instead of "I don't know". Or they may say "Whaddaya say?" instead of "What do you say?" However, the British are more careful in their speech. They usually say all the words and keep them separate.

    Sound is not the only difference between British English and American English. Words sometimes have different meanings too. Some American words are never used in England. The same thing is true of some British words in America. For example, the vocabulary for cars and driving is very different. Americans drive trucks, but in England people drive lorries.

    Many expressions are also different in the two countries. In England，if you are going to telephone your friends, you "phone them up". In America, you "give them a call". When you are saying goodbye in England you might say "Cheerio!" In America you might say "See you later."

    There're also some differences in grammar. For example, Americans usually use the helping verb "do" when they ask a question. They say "Do you have a storybook?" But the British often leave out the helping verb. They say "Have you a storybook?"

    All these differences can be confusing if you are learning English. But most languages are like this. Languages change over time. When people live in separate places, the languages change in different ways. This is what has happened to English. It can also happen to other languages, such as French. Many people in Canada speak French, but their French is very different from the French of France.

    At least 20 people died and hundreds were injured in a bridge collapse in the eastern Indian city of Kolkata Thursday. Witnesses said many people and vehicles, including two buses carrying more than 100 passengers, were under the bridge when it fell. They also said construction workers had set up camps near the bridge site where they would sleep and cook.

    Before rescue teams arrived, local residents and firefighters used their bare hands to try to rescue people trapped under the debris. The collapsed bridge is in a busy commercial area of Kolkata. Its location has made it difficult for rescue operations. Access to the area is blocked on both sides by buildings, and the streets are blocked with heavy traffic.

    Reuters (路透社) reports that the Chief Minister of West Bengal, Mamata Banerjee, rushed to the scene of the collapse. She said that rescuing those trapped is her “top priority”. Banerjee said those responsible for the disaster will be punished. Yet she faces questions about the safety of the construction project. The Telegraph newspaper reported last November that Banerjee wanted the bridge — already five years overdue — to be completed by February. Project engineers said they were concerned over whether this would be possible, the newspaper said at the time. Construction workers had been on a strict schedule to complete the bridge. The disaster could affect the West Bengal election next month. An Indian company, IVRCL, was building the 2­kilometer bridge, its website said. IVRCL's director of operations said the company was not sure of the cause of the disaster.

Mrs. Black was having a lot of trouble with her skin, so she went to her doctor about it. He could not find anything wrong with her, however. So he sent her to the local hospital for some tests. The hospital, of course, sent the results of the tests direct to Mrs. Black's doctor, and the next morning he telephoned her to give her a list of the things that he thought she could not eat, as any of them might be the cause of her skin trouble. Mrs. Black carefully wrote all the things down on a piece of paper, which she then left beside the telephone while she went out to a ladies' meeting.

When she got back home two hours later, she found her husband waiting for her. He had a big basket full of packages beside him, and when he saw her, he said, "Hello, dear. I have done all your shopping for you." "Done all my shopping?" She asked in surprise. "But how did you know what I wanted?" "Well, when I got home, I found your shopping list beside the telephone," answered her husband. "So I went down to the shops and bought everything you had written down."

Of course, Mrs. Black had to tell him that what he had thought were all the things the doctor did not allow her to eat.