Spring is a wonderful season to celebrate rebirth(再生) and new life. The long, cold winter is over. The weather is warmer and sunnier. The trees again have leaves and the flowers are blooming(开). The season represents(代表) hope, joy and beauty. At this time, many people think of this classical music piece — “Spring”, which shows happiness. Italian composer(作曲家) Antonio Vivaldi wrote it in the seventeen hundreds.

    However, not all songs about spring are happy. This song written and sung by K.D Lang is about dreaming of spring in cold dark places. She recorded “I Dream of Spring” in 2008.

Richard Rodgers and Oscar Hammerstein wrote “It Might as Well Be Spring” for the movie State Fair in 1945. Frank Sinatra sings it. It is a feeling of restlessness(焦虑) or excitement brought on by the coming of spring. Richard Rodgers also wrote “Spring Is Here”, this time with Lorenz Hart. Ella Fitzgerald sings this song about feeling lonely during this season.

    Frank Loesser wrote the sad song, “Spring Will be a Little Late This Year”. Why has the season been delayed(延迟)? Because the singer's lover has left her. Sarah Vaughn released(发行) her version of the song in 1953.

    By now you may be thinking, “Enough with the sad songs, already!” Ok, then how about a cowboy(牛仔) song? Gene Autry was one of America's most famous singing cowboys. He recorded “When It's Spring time in the Rockies” in 1937.

    And finally, we'll leave you with a sunny song called “Up Jumped Spring”. Freddie Hubbard wrote this jazz(爵士) song in 1977 and Billy Taylor Trio performs it.

    "How are you?" is a nice question. It's a friendly way that people in the United States greet each other, but "How are you?" is also a very unusual question. It's a question that often doesn't have an answer. The person who asks "How are you?" hopes to hear the answer "Fine", even if the Derson's friend isn't fine. The reason is that "How are you?" isn't really a question and "Fine", isn't really an answer. They are simply other ways of saying "Hello!" or "Hi!".

    Sometimes, people also don't say exactly what they mean. For example, when someone asks "Do you agree?". the other person might be thinking, "No, I disagree. I think you're wrong. "But it isn't very polite to disagree so strongly, so the other person might say "I'm not  so sure. "It's a nicer way to say that you don't agree with someone.

    People also don't say exactly what they are thinking when they finish talking with other people. For example, many talks over the phone finish when one person says "I have to go now. "Often, the person who wants to hang up gives an excuse: "Someone's at the door." "Something is burning on the stove. "The excuse might be real, or it might not. Perhaps the person who wants to hang up simply doesn't want to talk any more, but it isn't polite to say that. The excuse is more polite, and it doesn't hurt the other person.

    Whether they are greeting each other, talking about an idea, or finishing a talk, people often don't say exactly what they are thinking. It's an important way that people try to be nice to each other, and it's part of the game of language.

    In many English homes, people eat breakfast, lunch, afternoon tea and dinner a day. People have breakfast at any time between seven and nine in the morning. They eat porridge, eggs, or bread. Also they drink tea or coffee at breakfast.

    Lunch comes at one o'clock. The English people like take-away food. The most popular(最受欢迎的) food is fish and chips. They usually go to a fish and chip shop. They put the food in paper bags, and take it home, or to their work places. Some people eat take-away food in the park.

    Afternoon tea is about 4:30 in the afternoon. People usually drink tea with milk. And dinner is at about half past seven and it is usually a big meal. First they have soup, and then they have meat or fish with vegetables. After that they eat some other things, like bananas, apples or oranges. But not all English people eat like that. Some of them have their dinner in the middle of the day. People often eat dinner at a restaurant or at homes, and they think all these meals are very necessary (必要的).

    Big data(数据) is lot of sets of information that are put together so they can be used by a computer program. The computer program looks for different kinds of answers or patterns in the data. Big data can have different kinds of information from many sources, such as information that comes from schools, social media sites(社交媒体网站), companies and governments. One set of data can have people's names and addresses. Another set can have what they like, where they go to school, and how much time they spend on the computer.

    Big data can be used in many ways. The government uses it to understand how many people travel on buses or trains. This information is then used to make bus or train systems better. Some schools use big data to understand which children may need more help in class. The teacher can then give certain students more help or support so those students can succeed in school. Companies use big data, too. It helps them understand who buys their products. For example, one company uses weather data to see when people eat the most ice cream.

    Big data can be used for good reasons. Some hospitals use big data to predict if a baby who is born too early will get sick. The hospital can then take extra steps to take care of that baby so he, she does not get sick. Big data can also be used for bad reasons. It can be used to predict which kinds of people are likely to break the law or hurt others, even if they have not done anything wrong.

    How can big data be used for good and bad things? It is because the computer programs used to look at big data and understand it are written by people. People think a certain way. Because they think a certain way, they build a model of those ideas. These ideas are then used to look at the data. Sometimes, these ideas are helpful for people or businesses. Other times, bad ideas can cause problems for certain groups of people.