阅读下列材料，从每题所给的四个选项（A、B、C和D）中，选出最佳选项.

    Whatever life threw at us each year, our family had one tradition at Christmas: our dog Pepper opened our presents for us.

    Last year, everyone made it home for a Christmas get-together. However, it couldn't feel perfect because Pepper's health was becoming worse. Her life had already been longer than we expected-she was fourteen-and yet her mind was still sharp. Her love for life made us feel better. But her body could not keep up with her mind.

    Probably it was Pepper's last Christmas, so we decided to make sure she would enjoy it. On Christmas Eve, we each prepared presents for her.

    Soon, Pepper selected her first Christmas gift. She turned the present, just as she was a young dog once more. She pulled the paper off the dog treat before she chewed (咀嚼) it slowly. Our family was so happy.

    Pepper saw the remaining three presents, and then turned to Mom as if asking, “May I open another?”

    “Go ahead, girl!” Mom encouraged.

    For the next few minutes, Pepper opened each of her Christmas presents. While she did, she reminded us of the joy of being together. Our family felt as a whole-not because we were in the same room or city, but because our love brought us together.

    Pepper passed away after Christmas. Her peaceful passing made us tearful. Her passing was also a celebration of life, because she gave my family so much love and laughter.

    I still treasure Pepper's final Christmas gift. She taught me that no matter where we each spend the holidays, the smallest act of sincere giving can unite our family through our love. For me, that knowledge is the longest-lasting gift of all.

    Eating is best when it's a social activity. Think of the meal a family enjoys in the evening when everyone's together after work or school, or the big get-togethers over food at Spring Festival. But now, in the age of the Internet and social media, anyone with an Internet connection can enjoy a social eating event.

    Mukbang-a South Korean phrase meaning “eating broadcast”-is an unusual food fanaticism that's sweeping the country. This is a meal where only one person gets to eat, while many viewers watch live shows of hosts eating large quantities of food. They leave comments on the dishes the host is taking, and the host responds to them live.

    So why have people taken to this unusual new food trend(趋势)? Jeff Yang, an Asian-American cultural critic, thinks that it's down to “the loneliness of unmarried or uncoupled South Koreans”. He believes that eating on your own can be hard in a country like South Korea, where social eating is such a long tradition. However, Mukbang gives people the feeling that they are part of something larger, it seems.

    Millions of people have trouble with food. Either they eat too much of it, or too little. Some say that the popularity of Mukbang helps people with these disorders. Those who always eat too much and put on weight can watch Mukbang live shows to satisfy their appetite (胃口). And those who don't eat enough can build their appetite by watching delicious food being eaten.

    Even though Mukbang is a South Korean phenomenon, it's also taken off in the US. But unlike South Koreans who sit down to enjoy noodles and kimchi (泡菜), Americans enjoy their own native dishes. This means that viewers of US Mukbang live shows will see locals stuffing themselves with hamburgers, fries and ice cream.

    Rembrandt Harmenszoon van Rijn was one of the greatest artists of all time. He was born on July 15, 1606, in Leiden, Holland. Rembrandt began painting at an early age. At the age of 15, he traveled to Amsterdam to study art. But he soon returned home to paint on his own.

    Rembrandt's first paintings were of subjects from history. He used bright colors and shiny paints. These paintings were popular. Rembrandt became well-known in his community.

    In 1628, Rembrandt began to teach art. He was a respected teacher with many students. In 1632, Rembrandt again moved to Amsterdam. He began painting portraits (肖像) of many well-known people in Amsterdam. He soon became famous in Holland for his beautiful portraits.

    In 1634, he married a wealthy and educated girl named Saskia. She served as a model for many of his paintings. They moved into a large home where Rembrandt hung many of the paintings that he had collected. He enjoyed buying paintings by other artists.

    Rembrandt continued to succeed as an artist. But tragedy (悲剧) began to strike his family. Three of his four children died at a very early age. His wife, Saskia, died in 1642.

    Rembrandt became very sad. He began to paint with darker colors. But somehow, his painting grew even more beautiful. He used dark colors around the figures in his paintings. The figures themselves were painted as if a soft light were shining on them. One of Rembrandt's most famous paintings, The Night Watch, is from this period.

    Rembrandt began to paint more for himself and less for other people. Although his work was excellent, he was not able to make enough money to keep his house.

    Until he died on October 4, 1669, Rembrandt continued to paint. Rembrandt created over 600 paintings, 300 etchings (蚀刻画), and 1,400 drawings. Some of his most fascinating paintings were the portraits that he painted of himself. About 100 self-portraits leave a great record of his lifetime.

    You've heard the predictions from some of the brightest minds about AI's influence. Tesla and SpaceX chief Elon Musk worries that AI is far more dangerous than nuclear weapons. The late scientist Stephen Hawking warned AI could serve as the "worst event in the history of our civilization" unless humanity is prepared for its possible risks.

    But many experts, even those who are aware of such risks, have a more positive attitude, especially in health-care and possibly in education. That is one of the results from a new AI study released Monday by the Pew Research Center.

    Pew canvassed the opinions of 979 experts over the summer, a group that included famous technologists, developers, innovators and business and policy leaders. The interviewed experts, some of whom chose to remain anonymous, were asked to join in the discussion of a serious and important question: "By 2030, do you think it is most likely that advancing AI and related technology systems will improve human capacities and control them?"

    Nearly two-thirds experts predicted most of us will be mostly better off. But a third thought otherwise, and a majority of the experts expressed at least some concerns over the long-term impact of AI on the "essential elements(要素) of being human." Among those concerns were data abuse, loss of jobs and loss of control brought by autonomous weapons and cybercrime(网络犯罪). Above all, by taking data in and spitting answers out, those "black box" tools make decisions in digital systems. It is an erosion(侵蚀) in our ability to think for ourselves.

    A picture speaks a thousand words. And with over a thousand emoji pictures to represent our words, who needs to speak or write any more? According to Professor Vyv Evans of Bangor University, emoji is the UK's fastest-growing language in history. These little electronic pictures started life in Japanese mobile phones in the 1990s and are now hugely popular. They have inspired fashion, like the real-life dress copied from the dancing lady emoji, and are even recognized as art! In New York's Museum of Modern Art you can now see the first set of the 176 original emojis.

    Why do we love them so much? They allow us to personalize text and have fun as we express ourselves, make people laugh and be creative in how we use them. UK teenagers also told us they really appreciated the fact that emojis are quick and easy.

    People have their favourite emojis. In the UK, the most used emojis are ' face with tears ofjoy', ' face blowing a kiss' and 'Iove heart'. Maybe (with emojis at least) the British are more fun and romantic than people think! Companies such as McDonalds have also tried to use people's love of emojis to make advertisement. They used a series of emojis to tell a story of a disappointing day given a happy ending by a visit to McDonalds. Unluckily for McDonalds, most people added the vomiting(呕吐) emoji to the blank space after the story.

    What is the future of emoji? Is emoji developing so rapidly that it will soon compete with English as a global language? Or is technology changing so fast that emoji will soon be forgotten when the next big thing comes along? It is hard to say and even technology and language experts are divided on the subject.

    What do you think? Keep your eyes open for new developments!