C

    How often do you check your phone? According to a study led by Nottingham Trent University in Britain, the average person looks at their phones 86 times a day. Updating their status on social media platforms also made people reach for their electronic companion frequently.

    Even the participants thought that was a lot: this figure is twice as often as they thought they did. Our phones might be shaping our behavior more than we realize. Do you actually look at your surroundings more than at your phone? Is it rude to check your phone when someone is talking to you?

    Sherry Turkle interviewed hundreds of college students about this. She's a professor of social studies at the Massachusetts Institute of Technology. They talked about something they called "the rule of three".

    The rule has to do with being considerate to others despite the allure (诱惑力) of the little flat box. Turkle explains: "If you go to dinner with friends, you don't want to look down at your phone until you see that three people are looking up in the conversation. So there's a new rule where you don't look down unless three people are looking up in order to keep a little conversation alive."

    Actually, if you are clever enough you might use your phone as a tool to connect with people next to you. Sharing a bit of your life with them can bring you closer together. And you can also invite everyone to take a selfie (自拍照) with you.

    But the best thing to deal with mobile phone addiction is to go cold turkey and leave the machine behind occasionally or just switch it off and keep it firmly in your pocket for a while.

    Our planet is home to about seven billion people. Since the 1990s, population experts have predicted the number would grow to nine billion before it begins to slow down and possibly decrease.

    But a new report predicts the world's population is likely to increase to almost 11 billion by 2100. Based on the most modem statistical tools, the new report makes use of government records and considers expert predictions, including death rates, birthrates and international migration, or people moving across borders. The report says during the rest of this century, Africa's population will grow from about 3.5 billion to 5.1 billion over the next 85 years.

    John is director of the United Nations Population Division. He says that in the past, researchers thought population growth in Africa would be similar to that of other areas. They expected slower growth rates as birth control use became more widespread. But he says those ideas were wrong.

    “The level of contraception use has continued to increase but slowly — more slowly than expected, and birthrate therefore has been falling less rapidly than expected, and the population therefore continues to grow somewhat more rapidly than we expected.

    The new findings are based on a joint research project of the United Nations and the University of Washington,

    The researchers believe the population of Asia will reach five billion by 2050. That is up from the current 4.4 billion. And then begin decline. The researchers also believe that North America, Europe, Latin America and the Caribbean area will have a total population of below one billion.

    John says the pressure of feeding the rising population is likely to be less than that might be expected.

    “The relatively good news is that the world has been winning the race between population growth and food production. If you look back historically over the last 50 years, certainly for the world as a whole and for many, most individual countries and regions, the increase in food production has outpaced the increase of population.”

    The clearing of my parents' home has made me think about the importance, even centrality of books to the house's life and soul. The house, and our lives in it, would not have been the same without books. The force of the statement comes home to me as I see what happens when shelves are emptied. The rooms suddenly look uncomfortably bare.

    I always rather took it for granted that books furnished a room. The only rooms in our house without books were the dining-room and the bathrooms. Otherwise there were books everywhere: in all the bedrooms, in the drawing-room and in the piano room which became my parents' comfortable winter study.

    I couldn't help feeling that books were rather like people: some more formal and boring, others more entertaining; some simply for show, others with unpromising outsides but rich interiors. They did more, in fact, than furnish a room; they were companions who could offer insights, good advice.

    Now the books are being contributed (not all, to be sure, but very many), and I fear for their future, almost as if they were refugees (难民). “Habent sua fata libelli”, goes as the old Latin saying, originally written by Terentianus; it meant that the fate and future of books were determined by the capability of the reader. But the meaning of the phrase has been misunderstood by time and is now associated with the physical fate of particular books, how they have passed from owner to owner. This is how Walter Benjamin read the saying when he wrote his essay “Unpacking My Library”, which analyses the extraordinarily close relationship between a collector and his or her books.

    When I deal with the books that many are going to charity shops, I hope they will find good homes, I can't help wondering if my generation is the last that will oversee such a process. Books are disappearing, as more and more are bought in electronic form and exist only as bytes of information on e-books or other devices. Does this matter? Could books become more spiritual, as they lose their physicality?

    The English language has a lot of words which can be used in many different ways and in many different experiences.

    One such example is the word matter. In fact, matter can mean just about anything. It could be one of the most useful words in the English language.

Let's get to the heart of the matter —- a matter of principle(原则).

    If someone says that you owe(欠) him $50, but you don't, a friend might say, "Well, you could pay him the $50. It's not that much money. Then you won't have to hear him say it anymore." But if you do not owe him the money, do not pay him the money. It's a matter of principle.

    There is another way to use the word matter. But be careful with your choices of words.

    If you ask someone, "What's the matter?", it shows you are worried about the other person. But saying, "What's the matter with you?" has a completely different meaning. And it usually sounds rude. In fact, when you say, "What's the matter with you?", you are suggesting that the person did something wrong or stupid.

    Another expression that could sound rude is to say, "It doesn't matter to me." Here, it depends on the context, and how you say it.

    Let's say you tell someone that a friend just got a big raise at work. That person answers with, "It doesn't matter to me." Here, it means he or she does not care. And it sounds rude.

    But saying, "Oh, you pick where we eat dinner. It doesn't matter to me." does not sound rude. In the situation, "it doesn't matter" shows you are easy-going.

    No matter how you look at it and what you say, matter is a very useful word. And it's only a matter of time before you will become an expert on the use of matter.

    Organic(有机的)farming is a type of agriculture that benefits from the recycling and use of natural products. Use of dried plants not only saves money，but also ensures the growth of crops. The technique is characterized by the use of green manure(肥料), biological pest control methods and special farming techniques to keep soil productive. Limiting the use of man－made chemicals or completely doing away with them reduces the risk of diseases. Today，organic farming is a major and preferred industry around the world. Organically grown food products have a huge market，with farmlands covering about 10% of the total world－farmland cover. The hard work of Sir Albert Howard, the Father of Organic Farming, has paid off.

    Advantages of Organic Farming:

    ⑴The economics of organic farming are characterized by increasing profits through reduced water use and reduced soil erosion(侵蚀).

    ⑵Organic farming produces the same crops as those produced through traditional farming methods，but uses half the energy，and holds 40% more top soil

    ⑶Farming the organic way enables farmers to get rid of weeds without the use of any chemicals.

    ⑷The use of green pesticides(杀虫剂) is environmentally friendly and does no harm to human's health.

    Disadvantages of Organic Farming：

    ⑴Organic methods of farming produce less，compared to traditional farming techniques.

    ⑵Organic agriculture does little to fight global climate change. Though organic farming practices are recognized as giving out less CO₂ ， but not to a significant degree.

    However，though there are some disadvantages of organic farming，farms where organic methods for cropping have been used have more advantages than traditional farms. Organic agriculture is surely better in the long term.

Jean was a teacher who taught first grade. She drove an old Jetta with dull blue paint and worn seats. It wasn't the speediest tool, but Jean was never late to work. In fact, each school day she was the first teacher to arrive and the last teacher to leave.

She took great care to plan instruction, create assessments, and decorate her classroom. Parents in the neighborhood would beat down the principal's door to have their children arranged to her class. Jean could teach a mouse to read, and all her students passed into second grade with advanced vocabularies and language skills.

One August, two sisters in high school did not want to enter foster care (家庭寄养). They contacted their first grade teacher, Jean. Jean lived in quite an ordinary home with her son. Yet, she took the sisters in. Packed with children, the little blue Jetta sputtered (劈啪作响), but they had a good laugh.

One day, Jean spoke about her car, which she had driven for many years and had been old enough to retire. It was kind of dangerous for students to ride in such a car. She wanted a van. However, a new van was not within her ability. As a good friend, I listened to her concerns. Then, an idea came to me. I wrote a letter to The Oprah Winfrey Show, sharing Jean's story and her wish.

A month passed. Jean was invited to attend The Oprah Winfrey Show. Oprah hugged the teacher and told the details of Jean's story. Oprah announced that Jean deserved a new van.

The year was 1999. Six hundred miles away, I watched the joy of it all from the television. Jean's big heart taught me many lessons that year. One of them is that the simplest acts (like writing a letter) can require a strong faith. And nothing impossible.