Good manners are important, but you can easily make a social blunder when you visit a foreign country, because sometimes good manners in one place are bad manners in other places.

    Suppose you visit some friends in Mongolia and they ask you to eat with them. What kind of manners do they want you to have? They want you to give a loud “burp” after you finish eating. Burping shows that you like your food. But in some other countries, if you give a loud “burp”, you are supposed to say, “Excuse me, please.”

    In many places people like to eat together. But in some parts of Polynesia it is bad manners to be seen eating together. People show their good manners by turning their backs on others while they eat.

    What are manners like in an East African town? The people try not to see you. When you are visiting a friend, he may not see you at all. If you are polite, you will sit down beside him. You will wait until he finishes what he is doing. Then he will talk to you.

    If you visit a friend in Arabia you should walk behind other tents until you come to his tent. If you pass in front of other tents, you will be asked into each one. The people will ask you to eat with them. And it is bad manners if you say no.

    Manners are different all over the world. But it is good to know that all manners help people show that they want to be friends.

根据短文内容，选择最佳答案，并将选定答案的字母标号填在题前括号内。

    Two of the saddest words in the English language are “if only”. I live my life with the goal of never having to say those words, because they convey regret, lost opportunities, mistakes, and disappointment.

    My father is famous in our family for saying “Take the extra minute to do it right”. I always try to live by the “extra minute” rule.  When my children were young and likely to cause accidents, I always thought about what I could do to avoid an “if only” moment，whether it was something minor like moving a cup full of hot coffee away from the edge of a counter, or something that required a little more work such as taping padding (衬垫)onto the sharp corners of a glass coffee table.

    I don't only avoid those “if only” moments when it comes to safety. It's equally important to avoid “if only” in our personal relationships. We all know people who lost a loved one and regretted that they had foregone an opportunity to say “I love you“ or “I forgive you”. When my father announced he was going to the eye doctor across from my office on Good Friday，I told him that it was a holiday for my company and I wouldn't be here. But then I thought about the fact that he's 84 years old and I realized that I shouldn't give up an opportunity to see him.  I called him and told him I had decided to go to work on my day off after all.

    I know there will still be occasions when I have to say “ if only” about something, but my life is definitely better because of my policy of doing everything possible to avoid that eventuality. And even though it takes an extra minute to do something right, or it occasionally takes an hour or two in my busy schedule to make a personal connection, I know that I'm doing the right thing. I'm buying myself peace of mind and that's the best kind of insurance for my emotional well-being.

Time Travel

    If you could travel in time, where would you go? Perhaps you would watch an original performance of a Shakespeare's play in Elizabethan England? What about hanging out with Laozi in the Spring and Autumn Period? Or maybe you'd voyage far ahead of the present day to see what the future holds.

    The possibility of time travel is indeed appealing. Stories exploring the subject have been around for hundreds of years. Perhaps the best known example is science fiction novel. The Time Machine, which was written by H.G. Wells and published in 1895 for the first time. It was adapted into at least two feature films of the same name, as well as two television versions, and a large number of comic book adaptations. It is generally credited with the popularization of the concept of time travel using a vehicle that allows an operator to travel purposefully and selectively. The term "time machine", coined by Wells, is now universally used to refer to a vehicle transporting people into the far future.

    But could time travel actually be possible? Some scientists say yes, in theory. They propose using cracks in time and space called “wormholes”, which could be used as shortcuts to other periods. Einstein's theory of relativity allows time travel in extreme circumstances. And British physicist Stephen Hawking says you could travel into the future with a really fast spaceship going at nearly the speed of light. Though building such a spaceship would of course be no simple task.

    Even if you could travel into the past, there is something called the “grandfather paradox”. It asks what would happen if a time traveler were to go back in time and have his own grandfather killed for some reason, and therefore prevent himself from being born. If the time traveler wasn't born, how would he travel back in time?

    And would you really like to visit the future? In H.G. Wells' book, the main character travels into distant time where he arrives at a beach and is attacked by giant crabs. He then voyages 30 million years into the future where the only living thing is a black object with tentacles(触角).

    If that's what's in store, maybe we are better just living in the present day after all.

    Little Women is the best-known work of author Louisa May Alcott. Published after the end of the Civil War, the book is about the lives of the author and her sisters. Although it was her most successful work, it was not her first.

    Alcott began writing at the age of 20, when she published her poem “Sunlight”. Throughout her early career, she wrote many poems and short stories for magazines. At the age of 22, she began to write fairy tales, romantic thrillers, and other novels, mostly to earn money. At a time when few opportunities were open to women, Alcott supported women's right to work. With her small income, she had long provided for her family.

    When the Civil War broke out, Alcott, at the age of 30, joined the war effort to fight against slavery. She had originally wished to serve as a soldier. However, women were not allowed in battle at that time. As a result, she became a Civil War nurse. Alcott's work as a nurse served as a milestone (里程碑) in her writing career.

    In December of 1862, she left New England to work in the Union Hotel Hospital in Washington, DC. There were few supplies, and doctors performed operations without painkillers. The conditions for patients and doctors were terrible. Within a few weeks, Alcott herself became so ill that she nearly died. She returned home and recovered slowly over a period of months.

    As soon as her health improved, Alcott started a new project. The letters she had sent home became the basis of a newspaper series about her experience as a Civil War nurse. She wrote about her tasks, the wounded soldiers she looked after, and the difficulties they faced. The series, Hospital Sketches, was a success, which received praise from readers and critics (批评) at the same time. Although her best-known work was yet to come, the success of Hospital Sketches marked the achievement of her dream to become a popular author.

    In a win for literary fiction amid declining sales, Sally Rooney's novel Normal People has been named Waterstones book of the year in 2018.

    Rooney's second novel, which follows two young people falling in love in Ireland, has sold 41, 000 copies in hardback in the UK since it was released in August-five times the hardback sales of her 2017 debut, Conversations With Friends. At 27, Rooney is now the youngest winner of the award, which is given by the UK's biggest bookshop chain, Waterstones.

    Normal People received almost universal applause upon its release. Longlisted for the Man Booker prize, the book won novel of the year at the An Post Irish book awards in November of 2018 and has also been shortlisted for the Costa novel of the year, announced in January of 2019.

    The reader response to Normal People had been astonishing. As well as the universal praise, it has been a huge word- of-mouth (口头的) hit. There're customers returning to buy multiple copies as gifts. Normal People strengthened Sally Rooney's reputation as the voice of her generation and one of the most exciting novelists around today. Its success is a testament to the health of literary fiction and indicates that there is still significant appetite for excellent storytelling.

    The award, established in 2012, tends to go to books that are already bestsellers near Christmas. It has previously been won by the late American author John Williams's Stoner, the cookbook Polpo by Russell Norman, and last year's choice, Philip Pullman's La Belle Sauvage.

    James Daunt, Waterstones' managing director, said Rooney's win was a sign of the healthy state of literary fiction, which has seen sales decrease over the last decade. "We are delighted to name it our book of the year," he said.

    We spend a great amount of time listening to music. Most college students listen to music at least three or four times a week, and more than 50 percent of them go to at least one concert per year.

    According to new research, we may be born liking music, because human beings are born to find certain combinations of sounds attractive. For example, young children can recognize a familiar Song even when its key is changed. Similarly, they respond with more emotions to their mothers' singing than to their mothers' speech. Careful analysis of mothers' child-directed songs indicates that each mother's songs remain stable from one "performance" to the next, and this may encourage children's engagement with the songs.

    Research with adults suggests that music catches our attention by activating(激活) brain pathways that are most suited to processing music than to processing other kinds of sound. Specifically, music appreciation relies on the auditory cortex(听觉皮层) on the right side of the brain, which is specialized to process sound that characterizes music-in contrast to the left auditory cortex, which processes the stop-and-start bursts of sound that characterize speech.

    Although some Psychologists remain skeptical about whether music may have powerful effects on our thinking, a number of studies have shown that listening to music can increase people's spatial reasoning abilities Furthermore, It is clear that music can greatly influence our emotions. Personally significant music activates areas of the brain associated with pleasure and reward, the same areas that are activated by sex and good food.

    Researchers do not agree about how humans' abilities to process and enjoy music have come into being. Anyway, the next time you enjoy listening to a piece of music, remember that the most complex pieces of audio equipment are the ones between your headphones.