The following is a father's advice to his son or daughter, who has just graduated from high school：

    First of all, congratulations on your graduation!Graduation from high school means that a new stage of life is ahead of you．At the beginning of this new stage, I have some advice for you．

    Clean your own room and do your own laundry(洗衣物的活). After you have messed up(弄乱)something, you should learn to clean it up yourself．Cleanliness is indeed close to godliness(信奉上帝)．

    Don't mistake knowledge for wisdom. No matter how much information or knowledge you have gained, you'll never make sound(正确的)judgments if you don't have wisdom. Wisdom comes from imagination and reflection(反省)．If you can imagine the possible future outcomes of your present decisions and actions, you can avoid mistakes．And if you can reflect on the mistakes you have made, you can avoid making the same mistakes again and again．Such is wisdom．

    Don't complain．When you take up a job, do your best to carry it out．Don't waste time complaining about it, no matter how difficult and boring it is．

    Finally, be an early bird．If you get up earlier than the sun, you can watch it rising up slowly into the sky．And the sight of the rising sun will warm your heart and give you energy for the day ahead．Besides, being an early bird, you have plenty of time to take exercise or do a lot of work．

    On the first day of my new high school, I almost had a nervous breakdown. Everything about the school seemed so difficult. When I got home, my parents said, “You're nervous and that's okay. Everyone is afraid of high school. ”I denied it. I wanted to be strong, so I refused to let anyone know about my fear, even my closest friends.

    On the first day I was late for every class and was constantly lost. The school seemed like a puzzle that I couldn't figure out. Was this how the whole year was going to be？ I didn't think I could rise to this challenge, especially carrying a huge backpack that I could hardly lift. It was so big that I could knock someone out with it！The schoolmates seemed to regard me as a fool, and they were probably right.

    Despite my fears, after the first week I finally had my schedule figured out.

    With the exception of falling up and down the stairs a couple of times and getting laughed at, high school was turning out to be not so bad.  It was actually much better than middle school and much more challenging.

    Since then, I've been elected vice president of my class, which wasn't much of a victory since only three people ran for the four positions.

    It is normal to be scared about a new school. Take a deep breath and relax. High school is something that any student can overcome. Make sure you participate in some out-of-class activities because you'll find it easier to make friends. Try to do your best, even if it isn't straight A's.

    Most important of all, be who you are , whether you're a “fool”, an athlete, or a lower grader. Don't try to pretend to be someone you're not. Now you know the true secrets of high school.

    The influence of America is increasing in my country. Spanish people drink Coca Cola, wear blue jeans, watch Hollywood movies, listen to American music, and eat fast food, and they do these things every day.

    I think that American movies are a good way to spread American culture because people are often influenced by what they see in the movies. Most of the programs and documentaries(记录片) we watch on TV are from America, and most of the movies we go to see are made in Hollywood.

    In the last few years, the government has tried to protect the Spanish movies. Now, in our cinemas, at least twenty percent of the movies which are shown must be from Spain or from other countries in Europe.

    American culture is a part of Spanish life now. It's certain that many things from America are as much a part of people's lives as Spanish things. For example, Coca Cola is as familiar to everybody as any typical Spanish product. I've known about Coca Cola for my whole life.

    However, it's different with Western fast food. For example, I don't think McDonald's is as successful in Spain as it is in other countries. In my opinion, one of the reasons may be the lifestyle of the Spanish people, The Spanish people normally eat at home.

    On the other hand, maybe McDonald's hamburgers will eventually replace the famous Spanish tapas. It's true that in every city in Spain you can find a McDonald's, and it is more popular among the Spanish children than among the adults. In any case, it's obvious that American culture is becoming more and more a part of our lives every day.

    On November 24, 1868, Scott Joplin was born in Texas. He became famous as a ragtime (拉格泰姆音乐) composer and piano player. Ragtime music was an early form of jazz. This music has a lively beat and was developed from the music of African Americans.

    Ragtime became popular in the early 1890s, and the music was played on the piano. The piano player usually made up a melody, then changed it a little bit every time he played. Scott Joplin was very good at composing, or making up music and playing the piano. When he was growing up, Joplin's home was filled with music. Still, Joplin's father did not want him to be a musician. When he was about 14 years old, Joplin left home to travel and start a life of his own. He traveled all over the Midwest playing the piano and composing music. Sometimes he played with music groups. Other times he sang by himself in noisy saloons and bars. In 1899, Joplin wrote Maple Leaf Rag, a ragtime song that became a big hit and earned Joplin the title of The King of Ragtime. In all, he wrote more than 500 songs. Joplin's biggest dream was to compose a ragtime opera. Finally, after 10 years, Joplin completed a ragtime opera which he called Treemonisha. This opera was about a young black woman who became a leader of her people. She tried to help her people gain their freedom and their rights.

    1916, Joplin became very sick. He had a disease that made him forget things and become easily afraid of things. In 1917, he was put in the hospital. He finally died there on April 1, 1917. Scott Joplin's music became popular again in the early 1970s when it was used in a movie called The Sting.

    Hawking died early Wednesday at his home in England at the age of 76. Throughout his career as one of the world's most recognizable cosmic(宇宙的) thinkers, he regularly threw himself into pop culture's comedic ring with cameos(客串)on programs such as The Simpsons and Late Night with Conan O'Brien.

    These appearances defined(使明确) Hawking's personal life as much as his universe-shaking theoretical work. Humor, however, was not just one side of his personality, but a key to overcoming the disease he struggled against since 1963.

    "Keeping an active mind has been vital to my survival, ashas been maintaining a sense of humor," Hawking said in a 2013 documentary. "I am probably better known for my appearances on The Simpsons and on The Big Bang Theory than I am for my scientific discoveries."

    At 21, Hawking was diagnosed with a condition similar to amyotrophic lateral sclerosis(肌萎缩性侧索硬化症), also known as Lou Gehrig's disease. According to the ALS Association, "Half of all people affected with ALS live at most three or more years after diagnosis. Twenty percent live five years or more; only ten percent will live more than ten years."

    The disease would eventually shut down Hawking's motor functions, making him speechless and unable to move without a wheelchair. Doctors initially(最初) said he would be dead in two years. His condition, however, proved to be a rare slow-acting version.

    But Hawking fought through his worse physical state, rising to a position as a celebrated professor of mathematical at the University of Cambridge and altering the popular conception of physics with his 1988 bestseller, A Brief History of Time.

    "When I turned 21, my expectations were reduced to zero," he said in a TV show. He added, "It was important that I came to appreciate what I did have. It's also important not become angry, no matter how difficult life is, because you can lose all hope if you can't laugh at yourself and at life in general."

    As the temperature rises, sweaty humans are making a response that is further worsening the problem of climate change. At present, the world just has 1.6 billion air conditioning units, but these units use a surprising total of ten percent of all global electricity supply. While less than a third of families globally are so equipped, the most AC-addicted countries are Japan (in 91 percent of families), the US (90 percent) and South Korea(86 percent).

    New research by the International Energy Agency (IEA) guesses that the total number of AC units is likely to increase to over 5.6 billion by 2050－equal to ten new units being sold every second for more than 30 years－with sales driven particularly by India, China and Indonesia. This will make the use of air conditioning one of the world's largest demands for energy.

    "Growing electricity demand for air conditioning is one of the most critical blind spots in today's energy debate," argues Faith Birol, executive director of the IEA. "With rising incomes, air conditioner ownership will skyrocket, especially in the developing world. While this will improve daily lives, it is quite necessary that efficiency performance be prioritized."

    Birol and the IEA stress the need for new efficiency standards to ensure that consumers are at least buying units that require significantly less power to function, therefore decreasing the total energy demand. Variations on the traditional "vapor compression" technology, which has formed the basis for AC units for more than a century, may appear really important. A water-based system was recently developed by researchers at the National University of Singapore (NUS), which uses 40 percent less electricity and produces only one by-product: drinkable water.

    "Our cooling system can be tailored for all types of weather conditions, from wet climate in the tropics to dry climate in the deserts," says associate professor Ernest Chua at NUS. "While it can be used for indoor living and commercial spaces, it can also be easily used to provide air conditioning for blocks of buildings in an energy-efficient manner."