A student was one day taking a walk with his teacher. As they went along, they saw a pair of old shoes lying in the path. They were a poor farmer's, who was working in the nearby field.

    The student turned to the teacher, saying: “we will hide his shoes, and hide ourselves behind those trees, and wait to see what he will do.”

    “My young friend,” answered the teacher, “we should never make fun of the poor. Why not put a coin in each shoe, and then we will hide ourselves and watch?” The student did so and they both hid themselves behind the trees. The poor man soon finished his work, and came across the field to the path where he had left his coat and shoes.

    After putting on his coat, he put his foot into one of his shoes, and felt something hard. Then he bent (弯腰) down to feel what it was, and found the coin. Surprised, he looked at the coin, turned it around and looked at it again. He then looked around, but no person was seen. He put the money into his pocket, and continued to put on the other shoe. His surprise was doubled on finding the other coin.

    He couldn't control his feelings and fell to his knees, looked up to the sky and expressed his thanks. Then he spoke of his wife, sick and helpless, and his children without bread. He said the help would save them from dying.

    The student stood there deeply moved, and his eyes filled with tears. “Now,” said the teacher, “are you not much happier than if you had hidden the shoes?”

    Many animals recognize their food because they see it. So do humans. When you see an apple or apiece of chocolate you know that these are things you can eat. You can also use other senses when you choose your food. You may like it because it smells good or because it tastes good. You may dislike some types of food because they do not look, smell or taste very nice. Different animals use different senses to find and choose their food. A few animals depend on only one of their senses, while most animals use more than one sense.

    Although there are many different types of food, some animals spend their lives eating only one type. The giant panda eats only one particular type of bamboo. Other animals eat only one type of food even when given the choice. A land of white butterfly will stay on the leaves of a cabbage, even though there are plenty of other vegetables in the garden. However, most animals have a more varied diet. The bear eats fruits and fish. The fox eats small animals, birds and fruits. The diet of these animals will be different depending on the season.

    Humans have a very varied diet. We often eat food because we like it and not because it is good for us. In countries such as France and Britain, people eat foods with too much sugar. This makes them overweight, which is bad for their health. Eating too much red meat and animal products, such as butter, can also be bad for the health Choosing the right food, therefore, has become an area of study in modern life.

    Languages have been coming and going for thousands of years, but in recent times there has been less coming and a lot more going. When the world was still populated by hunter-gatherers , small tightly knit (联系) groups developed their own patterns of speech independent of each other. Some language experts believe that 10,000 years ago, when the world had just five to ten million people, they spoke perhaps 1,200 languages between them.

    Soon afterwards, many of those people started settling down to become farmers, and their languages too became more settled and fewer in number. In recent centuries, trade, industrialization, the development of the nation-state and the spread of universal compulsory education, especially globalization and better communications in the past few decades, all have caused many languages to disappear, and dominant languages such as English, Spanish and Chinese are increasingly taking over.

    At present, the world has about 6,800 languages. The distribution of these languages is hugely uneven. The general rule is that mild zones have relatively few languages, often spoken by many people, while hot, wet zones have lots, often spoken by small numbers. Europe has only around 200 languages; the Americas about 1,000; Africa 2,400; and Asia and the Pacific perhaps 3200, of which Papua New Guinea alone accounts for well over 800. The median number (中位数) of speakers is a mere 6,000, which means that half the world's languages are spoken by fewer people than that.

    Already well over 400 of the total of 6,800 languages are close to extinction (消亡), with only a few elderly speakers left. Pick, at random, Busum in Cameroon (eight remaining Speaker), Chiapaneco in Mexico (150), Lipan Apache in the United States (two or three) or Wadjigu in Australia (one, with a question-mark) none of these seems to have much chance of survival.

The Peony Culture Festival of Luoyang

    Spring is time for people to go out and see blossoming flowers. Luoyang in Henan, China is famous for peonies, the city's official flower. The city's annual Peony Culture Festival begins in early April and lasts till early May. Peonies are in full bloom during the event, which was first held in 1983.

    You can go to the Luoyang National Peony Garden. The peonies there are known for their rich colors and long florescence. Don't miss the 1,600-year-old "Peony King"!

    Chinese Language Day

    Chinese is one of the six official working languages of the United Nations. The LIN has set different days for these languages to promote their uses. It holds exhibitions, shows and other activities. In 2010, the first Chinese Language Day was held on Nov. 12. But since 2011, it has been held on April 20. The date is close to Grain Rain, one of the 24 solar terms. It means "rain of millet". People celebrate Grain Rain to remember Cangjie, a mythical character. Many people believe that Cangjie was the first person to write Chinese characters. When he did this, it rained millet and saved people from hunger.

    China Astronautics Day

    On April 24, 1970, China's first man-made Earth satellite — Dongfanghong I — went into space. It was a big step for China's space program. In 2016, the government set April 24 as China Astronautics Day. Many events are held across the country to celebrate this special day. For example, astronauts and scientists will give talks to students. Some cities will hold exhibitions about space development.

    Last year, China had big plans for its space program. On December 8, it launched its second lunar rover（月球车）as part of the Chang'e 4 space mission, which landed on the far side of the moon.

My First Day of School

    Fear started taking over, I was walking into my first school in America. I had traveled a long distance from India in order to join my parents, who had been for three years, hoping America would help my future. My father decided that I would be better off going to school here, so I enrolled(登记)in the local high school in my new town.

    I was afraid how I would do. On the first day, I went to my second period class after I had missed my first. With anxiety, I reached for the door, opening it slowly. Without paying attention to my classmates, I went straight to the teacher and asked if this was the right class. With a soft voice he answered. "Yes." His voice comforted me a little. He gave me a sheet called Course Requirements, which I would never get in India because we didn't have anything like that. Then he asked me to choose where I would sit. I didn't actually want to pick a seat. In India we had fixed seats, so I never needed to worry about that. I spent the rest of the class taking notes from the image produced by the overhead projector. In Indian schools, we didn't use the technology we had. We had to take notes as the teacher spoke.

    It was noon. I was very confused about when I would have lunch. I went to my next class and the bell rang as I entered. I went through the regular process of asking the teacher if I was in the right class. She said, "It's still fourth period."

    "But the bell just rang," I said.

    Changing from a gentle tone to a harsher(刺耳的)one, she said, "That is the lunch bell, young man."

    I apologized. Without another word I headed for the cafeteria. I felt lucky because we didn't have this in India. Every confusion seemed like a barrier I had to get through to reach my goal. At the end of the day, I was on my way to the bus which we didn't have in India either. I spotted my bus and sat down inside happily. I was thinking, today wasn't so bad.

At a time when industries are under greater pressure to reduce costs and increase efficiencies, more production facilities are turning to digital sensing technology to provide the real-time insights they need for improved performance. What if one digital sensor could measure multiple signals?

Yokogawa's DPharp (差压传送器) digital technology has the unique ability to measure two pressure parameters (参数), delivering reliable and accurate measurement of plant operations. The unique aspect of this digital technology is that it measures two parameters in one sensor module, providing additional insight into a plant's operations. It is the only sensor in the world that does this.

DPharp transmitters (发射器) use silicon (硅) resonant (谐振的) sensor technology to measure both differential (差别) and still pressure. The sensor consists of two H-shaped crystal silicon resonators that shake at a certain frequency and, when pressure is applied, the frequency of one resonator increases while the other decreases. By monitoring these frequencies digitally, both differential and still pressure can be measured at the same time. The frequency output is directly read by the central processing unit of the transmitter.

DPharp can be used in any processing plant across any industry—oil and gas to food and drinks. DPharp's unique digital sensing technology allows engineering firms and plant engineers to create designs that will equate to an average reduction of 40 percent. Where they would typically use five measuring devices, they are using three by using the multi-sensing technology. That is a significant cost reduction in the number of devices installed and the added benefit is that, as there are less devices, the engineering and design is less complex, which means less materials and less equipment to maintain. Furthermore, there are fewer transmitter spares required, which reduces costs. Tony Farah, Product Manager, said that more organisations are seeing the significant benefits of smart devices like DPharp.