In May 2001, I found a job in New York at the World Trade Center. On September 11, 2001, I arrived at my building at around 8:30 a.m. I was about to go up when I decided to get a coffee first. I went to my favorite coffee place even though it was two blocks east from my office. As I was waiting in line with other officer workers, I heard a loud sound. Before I could join the others outside to see what was going on, the first plane had already hit my office building. We stared in disbelief at the black smoke rising above the burning building. I felt lucky to be alive.

    Goldfish are good pets. They are funny to watch. But they need the right home. They are not happy if they are living in a bowl. A tank is bigger. It can hold more water and it has more room for goldfish to swim. So a tank is a good place for goldfish. Here are some ways for keeping goldfish in a tank.

    Put a tank at home. Do not put it near the window. It could get too warm from the sun.

    Put some water in the tank. Wait a few days, check the water and make sure the water is clean. Then put some rocks and plants on the tank bottom for fish to hide behind them.

    Get your fish. Bring it home in a bag. The bag must be full of water. Let the bag float (漂动) in the tank. Wait half an hour. Then open the bag. Let the fish swim out.

    Look after goldfish. First put a cover on the tank. It can keep fish safe. With a cover nothing can fall into the tank and fish cannot jump out. Do not feed your fish too much! A fish should eat most of its food right away. Clean the tank each week. To keep the water clean, you must take out old water and add new water.

    Your fish will be happy to live in a tank.

    The table above shows the sleeping patterns (模式) of people doing {#blank#}1{#/blank#} jobs. It is clear that there are big differences among them. For example, students continuously (连续地) sleep for {#blank#}2{#/blank#}each night because they go to school during the day. {#blank#}3{#/blank#} are busy and stressed out, so they only sleep for 6 hours. But they also sleep continuously during the night. Truck drivers sleep 6 hours and doctors sleep the {#blank#}4{#/blank#} hours among the five. However, because of their jobs, they have to divide their bedtime into different periods. Finally, {#blank#}5{#/blank#} mothers sleep when their babies do. They often have to wake up during the night to comfort (安抚) their babies. It is important to consider sleeping patterns when choosing a job.

    Making the most of time is important in our life. Here are some tips that might be of help to you.

    Make a plan. You should make a list of what you want to finish every week. The plan includes things you want to finish. You should know what the most important ones are, and try your best to do them first.

    Control your stress. No matter what kind of stress you have, try to keep cool. When you have a lot of things to do, too much stress may make you slow. Don't work all day without breaks.

    Focus on one thing at a time. Don't try to do many things at a time! You will lose your focus (注意力), and it will take you longer to finish your work.

    Just say "no". If you really don't have the time to help out, just say "no". You're only one person, and you can't save the world by yourself!

    Stop wasting time on the phone. While talking on the phone, keep your conversations short. In this way, you'll waste much less time.

    Relax. The most important thing is to take time to relax. Even if it's a 10-minute walk, get away from your work and get relaxed.