The pupils of Grangetown High have been busy getting to know their newest and tallest classmate — a 7-meter-tall giraffe outside their school.

    The giraffe is a huge sculpture (雕像) made by a local artist. The school's headmaster noticed the sculpture in the artist's garden as he drove past one day, and thought it would be perfect for his school. “I knew everyone would love it,” he said, “because our basketball team is known as the Grangetown Giraffes, and they wear giraffes on their shirts. So I asked them to write a letter to the artist, asking how much it would cost to buy the giraffe. He was very kind and got it ready to deliver (递送) in six weeks — all for nothing! It was expected to arrive one Sunday morning, so that the pupils would see it when they got to school on Monday — at that time they had no idea that we were getting it.”

    The artist, Tom Bennett, was a university professor (教授) of chemistry before he left that job in 2006 and only took up metalwork a couple of years ago. “I've always drawn pictures,” he said. “I can even remember doing it on my first day at school — I drew a horse. I wanted it to be the best horse picture ever, but I don't think I succeeded.” Tom's first metalwork was a bicycle for two that he and his wife could go cycling on together. “It was the most uncomfortable bike ever created,” he said, “so I gave up making bicycles and went into sculpture instead.”

    Meanwhile the pupils at Grangetown High are very happy with their new classmate. “We're going to hold a competition to give it a proper name,” said one girl. “Everyone likes the expression on its face, so perhaps that will give us some ideas.”

The Pathfinder

    When we found him, he was a sorry sight. His clothes were torn, his hands bleeding. Before we reached him, we saw him fall. He lay a moment. Then he pulled himself to his feet, walked unsteadily a few yards through the woods and fell again.

    After we got him out, we went back to find the gun that he had thrown down. His tracks showed that for two days he had circled in the forest, within 200 yards of the road. His senses were so dulled by fear and tiredness that he did not hear the cars going by or see the lights at night.

    We found him just in time.

    This man, like others before him, had simply been frightened when he knew he was lost. What had been a near disaster might have turned out as only a pleasant walk, had he made a few preparations before he stepped from the highway or off a known path.

    Whatever sense of direction that a man may have, it's still largely a question of observation. A skilled woodsman always keeps an eye on his surroundings. He notes that the shape of a mountain, the direction water flows through a swamp, and the way a tree leans across a path. With these in mind, he may be turned around many times, but he is seldom lost.

    There are exceptions, of course, and once in a while a man does come across some strange problem that puts him into the “lost” situation. A rainstorm or sudden blizzard may catch him without a compass (指南针) in his pocket. Darkness may find him in a rough area, where travel is dangerous without a light.

    When this happens, the normal first reaction (反应) is the fear of being laughed at as a result of his poor knowledge in the woods. He may also be concerned about the inconvenience that he will cause his friends when he doesn't show up. This false pride may lead him to keep on the move in a false effort to find his way against all difficulties.

    The person who thinks ahead is seldom in great danger. He'll be safe if he observes carefully, thinks ahead, and remains calm.

B

    These days, young people in some English-speaking countries are speaking a strange language, especially when communicating on social media.

    Look at these words chosen by The Washington Post: “David Bowie dying is totes tradge,” and “When Cookie hugged Jamal it made me totes emosh.” Or this sentence: “BAE, let me know if you stay in tonight.”

    What on earth do they mean? Well, “totes” is a short form of “totally”. Similarly, “tradge” means “tragic” and “emosh” means “emotional”. It seems that, for millennials（千禧一代）, typing in this form is not only time-saving but fashionable.

    As you can see, many millennial slangs（俚语）are formed by so-called “totesing”—the systematic abbreviation（缩写）of words. The trend might have started with “totally” becoming “totes”, but it now has spread to many other English words.

    The origins of other millennial slangs are more complex than “totesing”.“Bae”, for example, has been widely used by African-Americans for years. It can be an expression of closeness with one's romantic partner or, like “sweetheart”, for someone without romantic connection. After pop singer Pharrell used the word in his work, “bae” became mainstream.

    Some people might think millennial slangs lower the value of the English language, but Melbourne University linguist（语言学家）Rosey Billington doesn't agree. She says when people are able to use a language in a creative way, they show that they know the language rules well enough to use words differently. Two other linguists, Lauren Spradlin and Taylor Jones, share the same view. The two analysed hundreds of examples of totes-speak and discovered totesing has complex roots.

    It isn't simply an adult version of baby talk, nor a clever way to minimize your word count. Rather, it is a highly organized system that relies on a speaker's mastery of English pronunciation. It is about sounds, follows sound system of English and has strict rules.

    I always wondered how people would react if I tried to approach a total stranger for help in a busy place like a street corner or in a noisy mall. I have always hurried past a stranger who tried to catch my attention in a busy place or when I am rushing around.

    Yesterday, I was in a busy shopping mall buying a large piece of luggage because I just had the time to do it after many days of planning. After the purchase in one of the large shops, I picked up my phone from my pocket to call my driver waiting in the parking lot but my phone was dead.

    I then requested the shop assistant who had just sold me the luggage to ring the number of my driver for me and she replied that it was the shop policy that they cannot use mobile phones while working in the shop.

    I got out of the shop onto the busy street in front and approached a young mother with her two kids to make a request. As soon as I said “Excuse me, madam”, she grabbed both her kids and ran. I felt like a kidnapper.

    I stood there, wondering how many times I had reacted to strangers like the young mum. I stood there in the busy street with people rushing by, looking at their faces to see if there was a sign of kindness on their faces.

    I saw a man pretty shabbily dressed. He seemed to have noticed me and I just stopped him expecting him to rush past. My request escaped the lips. He immediately called the number of my driver and waited till my car came to be sure I was picked up, and he turned around before I could thank him adequately and was gone. I was surprised by his kindness and hope I will do likewise to strangers who try to catch my attention from now on.

    Nearly 19 percent of teachers of color(有色人种教师) left their jobs after the 2014-2015 school year. Some left for personal reasons like taking care of their families. But 50 percent said they left because they were dissatisfied with their employment situation, such as poor working conditions, student discipline problems and large class sizes. Thus, taking immediate measures to improve it is our top priority.

    For years, researchers have proved the benefits of increasing the share of minority teachers in schools, especially as our public school system has turned to one that is made up mostly of minority students. Teachers of color, who are more likely than their white counterparts to choose to work in racially diverse( 多 种 多 样 的 ) schools, offer particular benefits to their students. Graduation rates increase among minority students when they are taught by racially similar educators, research shows. They can also serve as positive role models, and their presence reduces the chance of racial discrimination at school.

    The Shanker Institute report suggests that the rate of minority teacher hiring is not the whole problem. The problem is what happens after these teachers enter the classroom. These teachers often work in high-poverty rural schools. They are more likely to have less-desirable working conditions.

    Diversity is a key component to equality and opportunity. Where there's a diverse teaching workforce, all kids thrive. So solutions must be found at once to turn this trend around. Firstly, schools should develop mentorship programs that support minority teachers once they are in the classroom. Secondly, more money should be spent in improving working conditions in these schools. Of course, school headmasters should also be evaluated on their ability to retain teachers of color.

    The problem of robocalls has gotten so bad that many people now refuse to pick up calls from numbers they don't know. By next year, half of the calls we receive will be scams(欺诈). We are finally waking up to the severity of the problem by supporting and developing a group of tools, apps and approaches intended to prevent scammers from getting through. Unfortunately, it's too little, too late. By the time these "solutions" become widely available, scammers will have moved onto cleverer means. In the near future, it's not just going to be the number you see on your screen that will be in doubt. Soon you will also question whether the voice you're hearing is actually real.

    That's because there are a number of powerful voice manipulation (处理) and automation technologies that are about to become widely available for anyone to use. At this year's I/O Conference, a company showed a new voice technology able to produce such a convincing human-sounding voice that it was able to speak to a receptionist and book a reservation without detection.

    These developments are likely to make our current problems with robocalls much worse. The reason that robocalls are a headache has less to do with amount than precision. A decade of data breaches(数据侵入)of personal information has led to a situation where scammers can easily learn your mother's name, and far more. Armed with this knowledge, they're able to carry out individually targeted campaigns to cheat people. This means, for example, that a scammer could call you from what looks to be a familiar number and talk to you using a voice that sounds exactly like your bank teller's, tricking you into "confirming" your address, mother's name, and card number. Scammers follow money, so companies will be the worst hit. A lot of business is still done over the phone, and much of it is based on trust and existing relationships. Voice manipulation technologies may weaken that gradually.

    We need to deal with the insecure nature of our telecom networks. Phone carriers and consumers need to work together to find ways of determining and communicating what is real. That might mean either developing a uniform way to mark videos and images, showing when and who they were made by, or abandoning phone calls altogether and moving towards data-based communications — using apps like FaceTime or WhatsApp, which can be tied to your identity.

    Credibility is hard to earn but easy to lose, and the problem is only going to get harder from here on out.