Mark Twain left school when he was twelve. He had little school education. In spite of (尽管) this, he became the most famous writer of his time. He made millions of dollars by writing. His real name was Samuel Langhorne Clemens, but he is better known all over the world as Mark Twain, his pen-name.

    Mark Twain was born in 1835 and he was not a healthy baby. In fact, he was not expected to live through the first winter. But with his mother's tender care, he managed to survive. As a boy, he caused much trouble for his parents. He used to play jokes on all of his friends and neighbors. He didn't like to go to school, and he constantly ran away from home. He always went in the direction of the nearby Mississippi (密西西比河). He was nearly drowned (淹死) nine times.

    After his father's death in 1847, Mark twain began to work for a printer, who only provided him with food and clothing. Then, he worked as a printer, a river-boat pilot and later joined the army. But shortly after that he became a miner. During this period, he started to write short stories. Afterwards he became a full-time writer.

    In 1870, Mark Twain got married. In the years that followed he wrote many books including Tom Sawyer in 1876, and Huckleberry Finn in 1884, which made him famous, and brought him a great fortune (财富).

    Unfortunately, Mark Twain got into debts in bad investments (投资) and he had to write large numbers of stories to pay these debts. In 1904, his wife died, and then three of their children passed away.

    At the age of 70, his hair was completely white. He bought many white suits and neckties. He wore nothing but white from head to foot until his death on April 21, 1910.

    Could the device, smartphone or PC，which you're using affect the moral decisions you make when using it? To test it, researchers presented multiple dilemmas to a sample set of 1,010 people. The participants were assigned a device at random.

    One case of the questions participants were asked is the classic “trolley (有轨电车) problem”: A runaway trolley is headed towards five people tied up on a set of train tracks. You can do nothing, resulting in the deaths of five people, or push a man off a bridge, which will stop the trolley. The practical response is to kill one man to save five lives, which 33.5 percent of smartphone users chose, compared to 22.3 percent of PC users.

    “What we found in our study is that when people used a smartphone to view classic moral problems, they were more likely to make more unemotional, reasonable decisions when presented with a highly emotional dilemma, ”Dr Albert Barque-Duran, the lead author of the study, told City, University of London. “This could be due to the increased time pressure often present with smartphones and also the increased psychological distance which can occur when we use such devices compared to PCs.”

    As for why the researchers started this study, Dr Barque-Duran noted, “Due to the fact that our social lives, work and even shopping take place online, it is important to think about how the contexts where we typically face moral decisions and are asked to engage in moral behavior have changed, and the impact this could have on the hundreds of millions of people who use such devices daily.” It's clear that we need more research on how our devices affect our moral decision making because we're using screens at an ever-increasing rate.

    Animal Farm by George Orwell

    Animal Farm is probably one of the most popular school reads in the world. George Orwell wrote it as a political allegory(讽喻)and has since then inspired the minds of not only adult revolutionaries but also the younger ones who start feeling the spark of being right and free for all of the humanity in their hearts.

Persepolis by Marjane Satrapi

    This is a wise, funny, and heartbreaking memory of Marjane Satrapi's years growing up in Iran during the Islamic Revolution, and how she dealt with life while experiencing the ruinous effects of the war with Iraq. The mistakes she felt she made opened her eyes and shaped her into becoming the influential individual she is today.

    To Kill a Mockingbird by Harper Lee

Regarded as a masterpiece of literature—-it is no wonder it won the Pulitzer Prize. The plot and characters are based on the author's observations of her family and neighbors, as well as on an event that occurred near her hometown in 1936, when she was 16 years old. The novel is famous for its warmth and humor, despite telling a story of innocent Tom Robinson being accused of raping(强暴)a white woman because he was black.

    The Harry Potter series by J.K. Rowling

    A story showing the absolute courage of a young boy, who was never afraid to speak his mind in the face of injustice and would always defend the helpless. A boy shows us the importance of believing in ourselves and others. Harry Potter reminds us that the true power to defeat any enemy is not found in others, but found within each of us.

    February 14th is Valentine's Day! In China, it is only a day for boyfriends and girlfriends. But my teacher and my friends in America told me that Valentine's Day is a public day.

    This was my first Valentine's Day in America. I didn't understand the customs clearly. Maybe I didn't need to send any gifts. I watched others to see what they did, so next time I can understand.

    On that day, when we began the reading class, Mr. Peters gave every student some chocolates and said, “Happy Valentine's Day!” I was very happy. The teacher gave his students gifts and blessings! I never saw that in China. Maybe American teachers are very different. I didn't buy a gift for the teacher, so I owed a gift to the teacher. Anyway, I want to say, “Thank you teacher, and I'm sorry.”

When we had a break, one of my classmates gave me a Pokemon card. It was very funny. I felt we were children. I thought I owed a gift again, but I felt thankful. It was another gift, but it was from my new classmate.

    When we were moving to our grammar class, suddenly I heard someone calling me, “Shelly!” I stopped. Another classmate who had only been in our class one day gave me some chocolates. She said, “These for you and your friends. Have a good day!” I was looking at her leaving and thinking she spoke Arabic. We were in the same class only one day, but now we are friends. That's very good, but I owed a gift again.

    When I came home, my Chinese friend sent some roses and chocolates. I was surprised and happy because I had never received roses in my past life, but I hoped it was the last gift. I didn't want to owe more gifts.

Anew study suggests that Medicare could spend billions of dollars on screening (拍片检查) smokers for lung cancer that would be better spent on helping them quit and keeping others from starting.

The new study indicated that screening more often supported smokers' beliefs that they could safely continue to smoke. Most participants remained smoking because they believed screening could catch cancer early before it would threaten their lives.

"They compared how hard it was to quit smoking with how easy it was to be screened," said Steven B. Zeliadt, the lead author of the study." They engaged in magical thinking that now there's this wonderful painless external test that can save lives."

He and seven colleagues conducted the study of 37 current smokers who were offered lung cancer screening at Department of Veteran Affairs. After being screened and told the results, they were interviewed about their smoking-related heath beliefs. For about half of those, cancer was not found." Screening lowered their motivation for quitting," the team reported in July in JAMA Internal Medicine. The participants focused only on lung cancer, ignoring other potential harm of smoking.

A national study published four years ago found that annual CT screening for lung cancer three years in a row could reduce deaths among heavy smokers by about 20 percent. In an interview, Dr. Russell P. Harris, a preventive medicine specialist at the UNC-Chapel Hill, noted that" Screening is being believed by people as an alternative to stopping smoking. But stopping smoking would have huge benefits for the individual and society." Furthermore, smoking causes many other cancers.

Dr. Harris agreed that rather than screening, money is better spent on smoking prevention. He suggested providing free stop-smoking aids, sponsoring anti-smoking advertising and raising taxes on tobacco products and the age at which people are allowed to buy them.

In high school I was very shy, content to hang around with my small group of friends and concentrate on my courses. I was quickly regarded as a "brain". I did so well that by the end of the senior year I had perfect grades and enough credits to give up an entire quarter of coursework.

But in early June of the senior year, the principal called me into his office. He asked me to give a speech at graduation. I gaped(目瞪口呆地凝视) at him, my heart thumping. This was the reward for my hard work? I mumbled something and fled the office, blaming myself for staying away from physics, a subject sure to have ruined my perfect record.

I finally agreed to a compromise. I would share the honour with five other students. And my friend Judy would then give her own, full-length speech.

The graduation day soon arrived. I'd been practising my speech for days, and I had it memorised. The first half hour of the ceremony passed in a blur, and then my moment came. My name was announced. I managed to reach the platform without falling down. I faced my classmates. My voice trembled a little, but mostly it was clear and strong. But within seconds, I was done and headed back to my seat. I accomplished something I'd never dreamed of—I spoke in front of hundreds of people.

Although I didn't realise it at the time, the successful completion of that speech gave me the confidence to participate in class at college, to give verbal reports, and to eventually break free from my shyness. I would never have chosen to give a speech at graduation ever. But I'm glad I did. I no longer hesitate when I'm faced with the prospect of doing something I dread. I know it may very well turn out to be one of my shining moments.