When I walked into the house after school, the first thing I noticed was a box with items I recognized from my dad's office. When he told me that he was laid off, I thought he was joking. Then I noticed his seriousness and realized he was telling the truth. My father has always been a hard worker. He has prided himself on his career.（1）{#blank#}1{#/blank#}I guess I had taken his work for granted.

          （2）{#blank#}2{#/blank#}For starters, he was home all the time. It meant my bed had to be made, my room cleaned up, and my homework done right after school. I would come home every day to find him at the computer searching for jobs. （3）{#blank#}3{#/blank#}He seemed down, though he tried to be optimistic. He asked my brother and me to spend less. I gave up my spending money, which wasn't much. I also found a part-time job.

          （4）{#blank#}4{#/blank#}He explained that he never wanted to be laid off again, so he was going to start his own business. Day by day, I watched him build it. One evening I asked if he needed help. “Only if it doesn't affect school,” he said. I showed up at his office the next afternoon, and most afternoons after that for two months.

          （5）{#blank#}5{#/blank#}The terrible experience for our family taught me how to deal with difficulties. Now I know that through creative problem-solving, I can always find Plan B. I can ask for help and take risks. What I have learned from my dad's understanding of business and his work ethic（信条）are two of the most important lessons I will ever learn. And they will be my principles for success.

    A. Providing for our family has been his joy.

    B. I made every effort to solve his problems.

    C. I began to notice how losing his job had affected him.

    D. My father's unemployment created many changes in our lives.

    E. After months of searching, my dad decided to go in a totally different direction.

    F. His courage and determination helped him to become successful in his new career.

    G. I always knew he was a hard worker, but watching him in action influenced me a lot.

       Most maps of the world show lines that are not on the Earth's surface.One line is the equator(赤道)．It is an imaginary line around the widest part of the Earth.There are similar lines both north and south of the equator.These circles become smaller and smaller toward the north pole and the south pole.These lines, or circles, are parallel(平行的)—meaning that they are equally distant from each other at any point around the world.These lines show what is called latitude(纬度)．

       A navigator can know the latitude of his ship by observing the location of stars, where the sun rises in the morning and sets in the evening, and what time of year it is.With this information he knows where his ship is in relation to the north or south pole and the equator.

       Still, there is one more important piece of information necessary for safely sailing the oceans.For many centuries, scientists, astronomers and inventors searched for a way to tell longitude(经度)．The lines of longitude go the other way from latitude lines.They stretch from the north pole to the south pole, and back again in great circles of the same size.All of the lines of longitude meet at the top and bottom of the world.

       To learn longitude at any place requires knowledge about time.A navigator needs to know what time it is on his ship and also the time at another place of known longitude—at the very same moment.

       The Earth takes twenty­four hours to complete one full turn or revolution of 360 degrees.One hour marks one twenty­fourth of a turn, or fifteen degrees.So each hour's time difference between the ship and the starting point marks a ship's progress of fifteen degrees of longitude to the east or west.Those fifteen degrees of longitude mark a distance traveled.

       At the equator, where the Earth is widest, fifteen degrees stretch about one thousand six hundred kilometers.North or south of that line, however, the distance value of each degree decreases.One degree of longitude equals four minutes of time all around the world.But in measuring distance, one degree shrinks from about one hundred and nine kilometers at the equator to nothing at the north and south poles.

Notes：

①navigator n ． 领航员　②stretch v ． 伸展